Camus hydronics Dynaflame series Manual

6226 Netherhart Road, Mississauga, Ontario, L5T 1B7 99-0435 Rev. 00

DynaFlame Series

Installation and Service Manual

Gas Fired Commercial Copper Tube and Stainless Steel Boilers

Non-Condensing Models DFH/DFW500 thru DFH/DFW6004

Near-Condensing Models DFH/DFW501 thru DFH/DFW6014

Condensing Models DFH/DFW502 thru DFH/DFW6024

WARNING

If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury

or death.

WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance,

•Do not touch any electrical switch; do not use any phone in your building,

•Immediately call your gas supplier from a neighbour’s phone. Follow the gas supplier’s instructions,

•If you cannot reach your gas supplier, call the fire department.

A Qualified installer, service agency or the gas supplier must perform installation and service.

WARNING

Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other appliance.

TO THE INSTALLER: After installation, these instructions must be given to the end user or left on or near the appliance.

TO THE END USER: This booklet contains important information about this appliance. Retain for future reference.

HLW

6226 Netherhart Road, Mississauga, Ontario, L5T 1B7 99-0435 Rev. 00

 
 
 
Table of Contents 
 
 
PART 1 GENERAL INFORMATION...........................................................................................................................1 
1 OVERVIEW...................................................................................................................................................1 
2 INTRODUCTION...........................................................................................................................................1 
3 SPECIAL INSTRUCTIONS TO OWNER ......................................................................................................1 
4 CHECKING EQUIPMENT.............................................................................................................................2 
5 HOW IT OPERATES (SEQUENCE OF OPERATION).................................................................................2 
6.1 IGNITION PROCESS....................................................................................................................................2 
6.2 HEAT TRANSFER PROCESS......................................................................................................................3 
6.3 END OF SEQUENCE....................................................................................................................................3 
7 CODES..........................................................................................................................................................3 
8 WARRANTY..................................................................................................................................................3 
9 REMOVAL OF EXISTING APPLIANCE........................................................................................................4 
10 BOILER ROOM OPERATING CONDITION .................................................................................................4 
11 CLEARANCE FROM COMBUSTIBLE MATERIAL.......................................................................................5 
12 INSTALLATION PROCEDURE AND LOCATION OF UNIT.........................................................................5 
PART 2 AIR SUPPLY & VENTING.............................................................................................................................8 
1 GENERAL VENTING GUIDE........................................................................................................................8 
1.1 CATEGORY I AND CATEGORY Ill VENTING..............................................................................................8 
1.2 VENTING GUIDELINES FOR CATEGORY III VENTING ............................................................................9 
1.3 CATEGORY II AND CATEGORY IV VENTING............................................................................................9 
1.4 VENTING GUIDELINES FOR CATEGORY IV VENTING............................................................................9 
1.5 APPROVED VENTING MATERIALS............................................................................................................9 
1.6 VENT TERMINATION CLEARANCES .......................................................................................................10 
1.7 INLET CAP FOR ROOFTOP TERMINATION ............................................................................................10 
1.8 LOCATION OF A ROOFTOP AIR INLET AND VENT CAPS .....................................................................10 
1.9 AIR INLET DAMPER...................................................................................................................................10 
1.10 MASONARY CHIMNEY INSULATIONS.....................................................................................................10 
1.11 VERTICAL VENTING TERMINATION........................................................................................................10 
1.12 COMBINED COMBUSTION AIR INLET .....................................................................................................11 
1.13 DRAIN TEE .................................................................................................................................................11 
2 CONVENTIONAL VENTING (INDOOR) INSTALLATIONS........................................................................11 
2.1 AIR REQUIRED FOR COMBUSTION AND VENTILATION.......................................................................12 
2.2 EXHAUST FANS.........................................................................................................................................12 
3 OUTDOOR VENTING.................................................................................................................................12 
4 THRUWALL VENTING................................................................................................................................12 
4.1 THRUWALL VENT CAP (14-0090) THRUWALL INTAKE AIR CAP (14-0101)..........................................12 
4.2 LOCATION OF A THRUWALL VENT TERMINATION...............................................................................13 
4.3 LOCATION OF A “THRUWALL” AIR INLET CAP.......................................................................................13 
4.4 LENGTH OF AIR INLET PIPE ....................................................................................................................13 
4.5 SIDEWALL CLEARANCE SPECIFICATIONS............................................................................................14 
PART 3 GAS CONNECTION....................................................................................................................................16 
1 GAS CONNECTION...................................................................................................................................16 
2 GAS PIPING................................................................................................................................................16 
3 INSTALL PIPING........................................................................................................................................16 
4 AIR/GAS RATIO VALVE.............................................................................................................................16 
5 DIFFERENTIAL AIR PRESSURE (DF2000 -6004) ....................................................................................17 
6 GAS MANIFOLD DIFFERENTIAL PRESSURE ADJUSTMENT (DF2000 –DF6004)..............................17 
7 CHECKING GAS SUPPLY PRESSURE....................................................................................................18 
8 CHECKING DIFFERENTIAL AIR AND GAS PRESSURES (DF2000 - DF6000)......................................18 
9 GAS TRAIN AND CONTROLS ...................................................................................................................19 
10 VENTING OF GAS VALVES AND PRESSURE SWITCHES.....................................................................19 
11 BURNER .....................................................................................................................................................19 
PART 4 WATER CONNECTION ..............................................................................................................................20 
1 FREEZE PROTECTION..............................................................................................................................20 
2 WARNING REGARDING CHILLED WATER & HEATING COIL SYSTEMS .............................................20 
3 INLET AND OUTLET CONNECTIONS.......................................................................................................21 
4 MINIMUM PIPE SIZE REQUIREMENTS....................................................................................................21 

 
 
 
5 PRIMARY HEAT EXCHANGER .................................................................................................................21 
6 LOW WATER TEMPERATURE SYSTEMS................................................................................................21 
7 INSTANTANEOUS WATER HEATER (non-condensing)...........................................................................22 
8 CONDENSER HEAT RECOVERY MODULE (CHRM)...............................................................................23 
9 CHRM, FLOW and PRESSURE DROP......................................................................................................24 
10 WATER FLOW SWITCH (shipped loose)...................................................................................................24 
11 LOW WATER CUTOFF (If Equipped)........................................................................................................24 
12 RELIEF VALVE (shipped loose)..................................................................................................................24 
13 CONDENSING HEAT RECOVERY MODULE PIPING CONFIGURATIONS ............................................25 
13.1 CHRM IN SERIES WITH PRIMARY HEAT EXCHANGER (INTEGRATED LOOP)...................................25 
14 CIRCULATING PUMP SELECTION...........................................................................................................25 
14.1 CIRCULATING PUMP OPERATION PRIMARY HEAT EXCHANGER......................................................25 
14.2 CIRCULATING PUMP SELECTION CONDENSOR..................................................................................25 
15 WATER CHEMISTRY RECOMMENDATIONS...........................................................................................25 
PART 5 ELECTRICAL & CONTROLS......................................................................................................................26 
1 ELECTRICAL CONECTIONS.....................................................................................................................26 
2 VARIABLE FREQUENCY DRIVE (VFD) ....................................................................................................26 
3 DIFFRENTIAL AIR PRESSURE SWITCH..................................................................................................27 
4 BLOCKED FLUE SWITCH..........................................................................................................................27 
5 HIGH and LOW GAS PRESSURE SWITCHES (Optional).........................................................................27 
6 HIGH LIMIT .................................................................................................................................................27 
7 DYNAFLAME SOLA....................................................................................................................................27 
7.1 SERVICE PARTS........................................................................................................................................27 
7.2 IGNITION MODULE LOCKOUT FUNCTIONS ...........................................................................................27 
8 DYNAFLAME CONTROLLER.....................................................................................................................27 
9 ERROR TABLE...........................................................................................................................................28 
PART 6 SOLA CONTROL PANEL ...........................................................................................................................30 
1 APPLIANCE TEMPERATURE CONTROLLER..........................................................................................30 
2 CONFIGURE MENU ...................................................................................................................................45 
3 LEAD LAG SETUP......................................................................................................................................47 
5 LOCAL/REMOTE SWITCH.........................................................................................................................48 
6 COMM. PORT 2 ACTIVATION ...................................................................................................................48 
7 49 
VARIABLE FREQUENCY DRIVE ...............................................................................................................................49 
8 FROST PROTECTION................................................................................................................................49 
PART 7 COMPONENTS...........................................................................................................................................50 
1 HOT SURFACE IGNITER (GLOW BAR)....................................................................................................50 
2 FLAME SENSOR ........................................................................................................................................50 
3 COMBUSTION AIR FAN.............................................................................................................................50 
4 INNER JACKET ..........................................................................................................................................50 
5 OUTER JACKET........................................................................................................................................50 
6 VENTING TRANSITION.............................................................................................................................50 
PART 8 FIELD STARTUP PROCEDURE ................................................................................................................51 
1 CHECKING THE INSTALLATION ..............................................................................................................51 
2 CHECKING THE CONSTRUCTION...........................................................................................................51 
3 FIRE TESTING............................................................................................................................................51 
4 COMISSIONING APPLIANCE....................................................................................................................54 
PART 9 TROUBLE SHOOTING...............................................................................................................................55 
PART 10 MAINTENANCE ..........................................................................................................................................62 
1 EXAMINE THE VENTING SYSTEM...........................................................................................................63 
2 VISUALLY CHECK MAIN BURNER FLAMES............................................................................................63 
3 FLUE GAS PASSAGEWAYS CLEANING PROCEDURES........................................................................63 
4 CONDENSATION TREATMENT ................................................................................................................63 
4.1 CONDENSATE VOLUME...........................................................................................................................63 
5 BURNER MAINTENANCE..........................................................................................................................64 
5.1 BURNER REMOVAL AND CLEANING ......................................................................................................64 
5.2 BURNER CLEANING PROCEDURE..........................................................................................................64 
6 CHANGING THE HOT SURFACE IGNITER..............................................................................................64 
6.1 RE-INSTALLING THE IGNITER .................................................................................................................65 
7 PRIMARY HEAT EXCHANGER INSPECTION ..........................................................................................65 

 
 
 
8 CONDENSING HEAT RECOVERY MODULE (CHRM) INSPECTION ......................................................65 
9 RE-INSTALL HEAT EXCHANGERS...........................................................................................................65 
10 COMBUSTION AIR FAN.............................................................................................................................65 
11 COMBUSTION AND VENTILATION AIR....................................................................................................65 
12 CONTROL CIRCUIT VOLTAGE.................................................................................................................65 
13 COMBUSTIBLE MATERIALS.....................................................................................................................65 
14 FREEZE PROTECTION..............................................................................................................................65 
15 FREEZE PROTECTION FOR A HEATING BOILER SYSTEM (Optional) ................................................66 
PART 11 INSTALLATIONS ........................................................................................................................................67 
1 HEATING BOILER INSTALLATIONS.........................................................................................................67 
2 WATER CONNECTIONS............................................................................................................................67 
3 PIPING LENGTHS ......................................................................................................................................67 
4 INTERMITTENT PUMP OPERATION ........................................................................................................67 
5 SUMMARY..................................................................................................................................................67 
6 DOMESTIC HOT WATER HEATER...........................................................................................................68 
7 WATER VELOCITY CONTROL..................................................................................................................68 
8 TEMPERATURE RISE AT FULL FIRING RATE ........................................................................................68 
9 WATER HEATERS .....................................................................................................................................68 
PART 12 EXPLODED VIEW.......................................................................................................................................70 
PART 13 ELECTRICAL DIAGRAMS.........................................................................................................................81 
WARRANTY ................................................................................................................................................................85 

PART 1 GENERAL INFORMATION

1.1 OVERVIEW

The DynaFlame is available in the following body styles:

•23” x 27” footprint, DynaFlame. As non-condensing 85%

efficient, available in models 500, 750, 1100, 1200. As

near condensing (DFX) 88% efficient DFX, available in

models 501, 751, 1101, 1201. As full condensing 95%

efficient, available in models 502, 752, 1102, 1202

•29 1/2” x 34” footprint, DynaFlame. As non-condensing

85% efficient, available in models 1500, 1750, 2000,

2500, 3000, 3500, 4000, 4500, 5000. As near-

condensing (DFX) 88% efficient, available in models

1501, 1751, 2001, 2501, 3001, 3501, 4001, 4501, 5001.

As full condensing 95% efficient, available in modes

1502, 1752, 2002, 2502, 3002, 3502, 4002, 4502, 5002

•35 3/4” x 39 1/4”footprint DynaFlame Mega. As non-

condensing 85% efficient, available in models 4504,

5004, 6004. As near condensing (DFX) 88% efficient

DFX, available in models 4514, 5014, 6014. As full

condensing 95% efficient, available in models 4524,

5024, 6024

1.2 INTRODUCTION

The DynaFlame is a forced draft appliance utilizing a premix

power burner based on push through design which offers

several venting options. Heat output is controlled by a one to

one air/gas ratio control gas valve which provides seamless

modulation. The DynaFlame® provides central heating

and/or domestic hot water at working pressure up to 160 PSI.

It is designed for use with a fully pumped and pressurized

system. The boiler/water heater will automatically modulate

to provide heat outputs between 100% to approximately 35%

of rated input on non-condensing models and down to 20%

on near condensing (DFX) and condensing models.

The DynaFlame works on the principle of differential

pressure. The operation of the fan will generate a differential

pressure, which the gas/air ratio control gas valve will match

on the gas side. The steady state efficiency is maintained

across the entire range of modulation. Air and gas are

metered in precise proportion (1:1 Ratio) to modulation

signal, allowing combustion characteristics which determine

efficiency to remain the same over entire operating range.

DynaFlame Non-Condensing

In this series most of the sensible heat value is being

transferred into the water. The unused portion of the sensible

heat and all the latent heat is released through the exhaust

vent. The overall efficiency of the DynaFlame is being

improved by incorporating preheat of intake combustion air

which consequently maintains the outer panels cool and thus

reduces jacket loss.

DynaFlame Near Condensing

In this series most of the sensible heat value is being

transferred into the water. The unused portion of the sensible

heat is too small to maintain flue products in a gaseous state.

Therefore, condensation is formed in the vent. The defining

characteristics of the DFX are reduced vent sizes at reduced

equivalent vent lengths of 50 ft, and continuous modulation

permitted down to 20% of input.

Figure 1: DynaFlame Non-Condensing

DynaFlame Condensing

In this series most of the sensible heat value is being

transferred into the water. The unused portion of the

sensible heat and most of the latent heat is absorbed

by the Condenser Heat Recovery Module (CHRM).

Figure 2: DynaFlame Condensing

1.3 SPECIAL INSTRUCTIONS TO OWNER

This manual supplies information for the installation,

operation and servicing of the appliance. It is strongly

recommended that this manual be reviewed completely

before proceeding with an installation

CAUTION

It is important that all gas appliances are installed by a

competent person. It is in your own interest and that of

safety to ensure that all local codes, and all the following

“NOTES” and “WARNINGS” is complied with.

To install, service or adjust this appliance, it is imperative

that a competent serviceman that is qualified by Camus®

Hydronics utilize a combustion analyzer with CO2, CO,

and draft gauge, to set the appliance according to

Camus® Hydronics recommendation, prior to

commissioning.

NOTE

RETAIN THIS MANUAL FOR FUTURE REFERENCE

1.4 CHECKING EQUIPMENT

Check for signs of shipping damage upon receiving

equipment. Pay particular attention to parts accompanying

the boiler, which may show signs of being hit or otherwise

being mishandled. Verify total number of pieces shown on

packing slip with those actually received. In case there is

damage or a shortage, immediately notify carrier.

Figure 3: Checking the DynaFlame

Do not attempt to pry any panel off. To begin disassembly

you must first remove the two ¼” bolts from the top of the lid.

Only then will you be able to remove the lid and disassemble

the three outer panels.

Once you have removed the lid carefully check and confirm

that all ¼” copper tubing connections are intact and have not

broken or loosened in shipment. Leaks at any connections

on these lines will result in erratic appliance operation.

1.5 HOW IT OPERATES (SEQUENCE OF

OPERATION)

1) Supply power connection as per table 10.

2) The power switch is placed in the “ON” position.

3) 120 VAC power is supplied to the control transformer.

4) 24 VAC is supplied to the ignition module and low

voltage controls for all models.

5) After the appliance water pump starts, flow is proven by

the flow switch. The flow switch is to be mounted in a

tee at the outlet of the appliance. Take care to properly

trim the flow switch paddles so as not to jam the switch

in the tee. The normally open dry contacts in the low

water cutoff (LWCO) are to be wired in series with the

normally open contacts of the flow switch. Locate the

probe type LWCO in the piping above the boiler

inlet/outlet connection. The low water cutoff and flow

switch are shipped loose. In all cases check with local

codes.

6) The DynaFlame controller receives a call forheat via the

remote operator contacts and the Demand parameter

reads Central Heating or DHW.

7) The local thermostat energizes the motor stop/start

relay which closes the initiate contacts to the variable

frequency drive (VFD) which starts to ramp up the

frequency to the 230V 3 phase motor of the combustion

fan. If the VFD is not in fault mode the frequency will

accelerate at the preprogrammed rate towards

maximum speed using the modulating signal provided

by the on board modulating control or the remote

operating system.

8) If temperature high limit, water flow and airflow switches

are closed the fan will run at pre-purge speed until the

pre-purge timer is satisfied. Once complete the

DynaFlame will target the ignition fan speed.

9) DF 500 –DF 2500 (Direct Ignition): The hot surface

igniter will be energized for 22 seconds followed by

energizing the main valve for 4 seconds. A signal of

0.8dVdc must be recognized by the controller at the

flame sensor to keep the main gas valve in an open

position. The fan is kept at ignition speed until the

stabilization timer is satisfied.

10) DF 3000 –DF 5000 (Proven Pilot): The DynaFlame

controller will activate the hot surface igniter for 22

seconds followed by powering the pilot valve for 10

seconds, whereupon a signal of 0.8Vdc must be

recognized by the controller at the flame sensor to keep

the main gas valve in an open position. The fan is kept

at ignition speed until the stabilization timer is satisfied.

11) If the flame signal is not reached the module will stop

the ignition sequence after the trial for ignition.

12) The fan speed will slowly decrease as the heat request

nears the heat demand. The modulation rate is

controlled via a 4-20mA signal. If the heat demand is

sustained for a long duration of time the boiler will get to

a point of steady-state and the fan will rotate at constant

speed.

13) When the heat demand is satisfied or is removed the

burner will shut off and the fan speed will ramp up to the

preset Post-Purge speed until the Post-Purge timer is

satisfied.

14) The pump continues to circulate until the post-purge

time is satisfied.

15) The boiler will then go into Standby as it waits for the

next heat demand.

Note:

•If a flame signal is detected at the end of the pre-purge

period an error statement to that effect will appear.

•If at the end of the safety period (6 sec) no flame is

detected the control will go to post-purge to remove the

unburned gas. After this, a re-ignition attempt is started

following the same cycle. The number of re-ignition

attempts is limited to 2 after which a lockout occurs.

•The burner can only be on continuously for a period of

24 hours. After this the burner is switched off and a

restart sequence follows.

•The hot surface igniter is de-energized at the end of the

ignition period to allow for ionisation detection.

1.6.1 IGNITION PROCESS

1) The Ignition module supplies voltage to the Air/Gas

Ratio Control Valve.

2) Air/Gas Ratio Control Valve senses the pressure

differential between the Combustion Air Fan outlet and

the vent outlet and supplies gas to the orifice and into

the Fan inlet to pre-mix with air.

3) The Gas/Air mixture is forced into the Burner and out of

the Burner Ports under pressure at soft start input rate.

4) Hot Surface Igniter lights the Gas/Air mixture and the

Flame Sensor serves as a means to prove Main Burner

Flame by rectification.

5) Burner is now firing at soft start input rate.

6) Variable Frequency Drive adjusts fan speed based on

desired water temperature set point or input signal from

remote operator 4-20 mA or 2-10VDC signal (must be

specified at time of placing order).

7) Burner input rate is variable down to approximately 30%

of rate or up to 100% of rate as required to satisfy the

set point.

1.6.2 HEAT TRANSFER PROCESS

1) Burner Input continues to increase until water

temperature reaches the Set Point temperature.

2) Burner Input may stabilize at a fixed rate where demand

equals input.

3) Burner Input will decrease rate when water temperature

approaches temperature Set Point.

1.6.3 END OF SEQUENCE

1) Set Point temperature is satisfied.

2) Power to the gas valves is turned off.

3) Combustion Air Fan ramps to a stop over the factory

preprogrammed time period of 60 seconds.

4) Thermostat is now in a standby mode waiting for the

next “Call for Heat”.

WARNING

To minimize the possibility of serious personal injury, fire

or damage to your appliance, never violate the following

safety rules.

WARNING

IMPROPER INSTALLATION, ADJUSTMENT,

ALTERATION, SERVICE OR MAINTENANCE can

cause injury or property damage. Refer to this manual.

For additional information, consult a qualified installer,

service agency or gas supplier.

DO NOT

Do not use this appliance if any part of it has been under

water. The possible damage to a flooded appliance can

be extensive and present numerous safety hazards. Any

appliance that has been under water must be replaced

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance. • Do not touch any

electric switch: do not use any phone in your building. •

Immediately call your gas supplier from a neighbor’s

phone. Follow the gas supplier’s instructions. • If you

cannot reach your gas supplier, call the fire department.

IMPORTANT

Consult and follow local Building and Fire Regulations

and other Safety Codes that apply to this installation.

Contact the local gas utility company to authorize and

inspect all gas and flue connections.

Installation and service must be performed by

Camus® qualified factory trained service technicians.

WARNING

Should overheating occur or the gas supply fails to shut

off, DO NOT turn off or disconnect the electrical supply to

the pump. Shut off the gas supply at a location external to

the appliance.

WARNING

Operation of Non-CondensingDynaFlame at low fire (less

than 100% of input) for long periods of time will increase

the possibility of forming condensation in the flue,

particularly in Spring/Fall operation.

•Boilers and water heatersareheatproducing appliances.

To avoid damage or injury, do not store materials against

the appliance or the vent-air intake system. Use proper

care to avoid unnecessary contact (especially children)

with the appliance and vent-air intake components.

•Never cover your appliance, lean anything against it,

store trash or debris near it, stand on itor in any wayblock

the flow of fresh air to your appliance.

•UNDER NO CIRCUMSTANCES may flammable

materials such as gasoline or paint thinner be used or

stored in the vicinity of this appliance, vent-air intake

system or any location from which fumes could reach the

appliance or vent-air intake system.

•A gas appliance that draws combustion air from the

equipment room where it is installed must have a supply

of fresh air circulating around it during burner operation

for proper gas combustion and proper venting.

1.7 CODES

The equipment shall be installed in accordance with

those installation regulations in force in the local area

where the installation is to be made. These shall be

carefully followed in all cases. Authorities having jurisdiction

shall be consulted before installations are made. In the

absence of such requirements, the installation shall conform

to the latest edition of the National Fuel Gas Code, ANSI

Z223.1 and/or CAN/CGAB149 Installation Code. All

electrical wiring must be done in accordance with the

requirements of the authority having jurisdiction or, in the

absence of such requirements, with National Electrical Code,

ANSI/NFPA70 and/or the Canadian Electrical Code part 1

CSA C22.1. Where required by the authority having

jurisdiction, the installation must conform to American

Society of Mechanical Engineers Safety Code for Controls

and Safety Devices for Automatically Fired Boilers, ASME

CSD-1. All boilers conform to the latest edition of the ASME

Boiler and Pressure Vessel Code, Section II. Where

required by the authority having jurisdiction, the installation

must comply with the CSA International, CAN/CGA-B149

and/or local codes. This appliance meets the safe lighting

performance criteria with the gas manifold and control

assembly provided, as specified in the ANSI standards for

gas-fired units, ANSI Z21.13.

1.8 WARRANTY

•Factory warranty (shipped with unit) does not apply to

units improperly installed or improperly operated.

•Factory warranty shall apply only when the appliance is

installed in accordance with local plumbing and building

codes, ordinances and regulations, the printed

instructions provided with it and good industry practices.

•Excessive water hardness causing a lime build-up in the

copper coils or tubes is not a fault of the appliance and is

not covered by warranty. Consult the factory for

recommendations for use in hard water areas. (See

Water Treatment and Water Chemistry)

•Excessive pitting and erosion on the inside of the copper

tube may be an indication of anundersized heater or may

be caused by too much water velocity through the tubes

and is not covered by the manufacturer’s warranty (See

Boiler Flow Rates and Temperature Rise for flow

requirements).

•Using or storing corrosive chemicals in the vicinity of

this appliance can rapidly attack the copper tubes and

coils and voids warranty.

•In case of Condensing or Non-Condensing DynaFlame,

The Main (Primary) Heat Exchanger is intended to

operate under non-condensing conditions. Inlet water

temperatures must be maintained at 115°F (46°C) or

higher for non-condensing models and 130°F (55°C) or

higher for near-condensing (DFX) and condensing

models. Warranty is void if the Primary heat exchanger is

allowed to operate in condensing mode.

•Damage caused by freezing or dry firing voids

warranty.

•This appliance is not to be used for temporary heating

of buildings under construction.

•The manufacturer shall NOT be held liable for any

personal injury or property damage due to ice formation

or the dislodging of ice from the vent system or the vent

termination

1.9 REMOVAL OF EXISTING APPLIANCE

When an existing appliance is removed from a common

venting system, the common venting system is likely to be

too large for proper venting of the appliances remaining

connected to it. At the time of removal of an existing

appliance, the following steps must be followed with each

appliance remaining connected to the common venting

system placed in operation, while the other appliances

remaining connected to the common venting system are not

in operation.

•Seal any unused openings in the common venting

system.

•Visually inspect the venting system for proper size and

horizontal pitch and determine that there is no blockage,

restriction, leakage, corrosion or other deficiency, which

could cause an unsafe condition.

•Insofar as is practical, close all building doors and

windows and all doors between the spaces in which the

appliances remaining connected to the common venting

system are located and other spaces of the building. If

applicable turn on the clothes dryers and any appliances

not connected to the common venting system. Turn on

any exhaust fans, such as range hoods and bathroom

exhausts, so they will operate at maximum speed. Do not

operate a summer exhaust fan. Close fireplace dampers.

•Place in operation the appliance being inspected. Follow

the lighting instructions. Adjust thermostat so that

appliance operates continuously.

•If provided, test for spillage at the draft control device

relief opening after 5 minutes of main burner operation.

Use a cold mirror, or the flame of a match or candle.

•Test for spillage at the draft control device relief opening

after 5 minutes of main burner operation.

•After it has been determined that each appliance

remaining connected to the common venting system

properly vents when tested as outlined above, return

doors, windows, exhaust fans, fireplace dampers and any

other gas-burning appliance to their previous condition of

use.

•Any improper operation of the common venting system

should be corrected so that the installation conforms to

the National Fuel Gas Code, ANSI Z223.1 and/or

CAN/CGA B149, Installation Codes. When resizing any

portion of the common venting system, the common

venting system should be resized to approach the

minimum size as determined using the appropriate tables

in Part 11 of the National Fuel Gas Code, ANSI Z223.1

and /or CAN/CGA B149, Installation Codes.

Heat exchanger surfaces and vent piping should be checked

every six months for deterioration and carbon deposits.

Remove all soot or other obstructions from the chimney and

flue, which might impede draft action. Replace any damaged

or deteriorated parts of the venting system.

A qualified service technician should follow this procedure

when inspecting and cleaning the heat exchanger and vent

pipe.

1) Turn off electrical power and main manual gas shut-off

and allow appliance to cool down.

2) Remove the vent pipe running to the chimney and check

heat exchanger, vent, and chimney for obstruction and

clean as necessary.

3) Remove burner from appliance and carefully clean as

required. Never brush or wipe the knitted metal fibre

surface, use a garden hose and wash instead. Caution:

Never use pressure washer to clean the burner.

4) Use pressure wash to clean heat exchanger if

necessary.

5) Reinstall parts removed in steps 2 and 3. Be sure that

vent pipe has proper pitch and is properly sealed.

Replace any damaged gasket. Note that the burner is

supplied with two gaskets: a high temperature ceramic

paper gasket under the burner flange and a stamped

silicon gasket between the burner flange and fan flange.

Tighten fan flange mounting nuts to 20 ft-lb.

6) Restore electrical power and gas supply to appliance.

7) Place appliance in operation using lighting instructions

provided.

8) Confirm proper operation of all safety devices

9) Check for gas leaks and proper vent operation.

NOTE

Experience has shown that improper installation or

system design, rather than faulty equipment, is the

cause of most operating problems

1.10 BOILER ROOM OPERATING CONDITION

•Due to low jacket losses from the appliance,

temperatures in a typical boiler room may drop

significantly; supplemental heat is required to maintain

ambient temperature at acceptable levels.

•Cold fresh air intakes must be located to minimize the

effects on venting and subsequent condensation in the

flue of Category I installations. When necessary,

consider the use of insulation or corrosion resistant

venting material.

•Camus DynaFlame boilers and water heaters are

approved at 85% efficiency which allows the equipment

to be vented as a Category I appliance using either

single wall “C” vent or double wall “B” vent. Certain

conditions in the field however lead to condensation in

the vent and render these products unsuitable.

These conditions include and are not necessarily limited to:

1. Low boiler room temperature.

2. Low return water temperature.

3. Long periods of low fire operation.

4. Oversized breeching in common venting applications.

5. Proximity to combustion air openings.

Given the frequency of these conditions occurring in the field,

we are recommending the use of corrosion resistant

stainless-steel venting wherever possible.

1.11 CLEARANCE FROM COMBUSTIBLE

MATERIAL

This appliance is suitable for alcove (a closet without a door)

installation with minimum clearances to combustibles as

follows:

Table 1: Clearances from Combustibles

Clearances from Combustibles

TOP:

12”

SIDES:

12”

REAR:

12”

VENT:

6”

Figure 4: Clearance from Combustibles

When placing the appliance be aware that a minimum

clearance of 24” (60cm) must be provided at the front to allow

easy access to the primary heat exchanger.

NOTE: Clearances from combustible construction are

noted on the appliance rating plate

When installed directly on combustible flooring, the

appliance shall be installed on a metal panel extending

beyond the full width and depth of the appliance by at least

3 inches (76.2mm) in any direction. The floor must be strong

enough to support the full weight of the heater.

Maintain minimum specified clearances for adequate

operation. All installations must allow sufficient space for

servicing the vent connections, water pipe connections,

circulating pump, bypass piping and other auxiliary

equipment, as well as the appliance

Table 2: Service Clearances

Service Clearances

Model

Numbers

Service Clearance, Inches (cm)

Top

Right

Side

Left

Side

Back

Front

500

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

750

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

1100

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

1200

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

1500

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

1750

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

2000

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

2500

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

3000

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

3500

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

4000

30”

(77cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

4500

35”

(89cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

4504

20”

(51cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

5000

40”

(102cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

5004

24”

(60cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

6004

33”

(84cm)

12”

(30cm)

12”

(30cm)

24”

(60cm)

*Allow adequate space for the venting in addition to 6”

clearance to combustibles.

1.12 INSTALLATION PROCEDURE AND

LOCATION OF UNIT

Install this appliance in a clean, dry location with adequate

air supply and close to a good vent connection.

•Do not locate this appliance in an area where it will be

subject to freezing unless precautions are taken. Radiant

losses from the DynaFlame are minimal and should not

be relied on to keep the appliance room warm. If the

appliance is installed in a cold room and/or on a cold floor,

isolating the appliance from the cold floor and heating the

room is recommended.

•The appliance should be located close to a floor drain in

an area where leakage from the appliance orconnections

will not result in damage to the adjacent area or to lower

floors in the structure, it is recommended that a suitable

drain pan, adequately drained, be installed under the unit.

Under no circumstances is the manufacturer to be held

responsible for water damage in connection with this unit,

or any of its components.

•If the appliance is installed above the level of the

building’s radiation system, a low water cut-off device

must be installed above the heat exchanger inlet/outlet

connections. Some local codes require the installation of

a low water cut-off on all systems

•When placing the appliance be aware that a minimum

clearance of 24” must be provided at the front to allow

easy access to the primary heat exchanger. Non-

condensing units do not require access through both

sides and could be placed adjacent to each other with

zero clearance. For condensing units, a minimum

clearance of 12” must be provided on the right side for

access to the Condensing Heat Recovery Module.

•The appliance must be installed so that the ignition

system components are protected from water (dripping,

spraying, etc.) during appliance operation and service

(circulator replacement, control replacement, etc.)

•Appliances located in a residential garage and in

adjacent spaces that open to the garage and are not part

of the living space of a dwelling unit must be installed so

that all burners and burner ignition devices have a

minimum clearance of not less than 18" (46cm) above the

floor. The appliance must be located or protected so that

it is not subject to physical damage by a moving vehicle.

•DO NOT install this appliance in any location where

gasoline or flammable vapors are likely to be present.

•Appliance must be installed on a level floor. Maintain

required clearances from combustible surfaces.

•The appliance designed for indoor installation (Indoor

Models) must be installed indoors where it is protected

from exposure to wind, rain and weather.

•The appliance designed for outdoor installation (Outdoor

Models) must be installed outdoors. For outdoor

installations, always consider the use of a shelter such as

a garden shed in lieu of direct exposure of the appliance

to the elements. The additional protection afforded by the

shelter will help to minimize nuisance problems with

electrical connections and will allow easier servicing of

the appliance under severe weather conditions.

Table 3: Appliance Dimensions and Specifications [in.]

Model

Width

"A"

Depth

"B"

Height

"C"

Water

Conn.

"D"

Air

Inlet

"E"

Flue

Height

"F"

Gas

Height

"G"

"H"

"I"

"J"

"K"

"L"

"M"

"N"

Air

Inlet

Dia.

"W"

[T.P.]

Water

Conn.

Prim.

[T.P.]

Water Conn.

Sec.

Grooved

(Optional)

[T.P.]

Gas

Conn.

[NPT,

T.P.]

500

45 5/8

37 1/4

13 1/4

33 5/8

17 3/4

4 1/8

2 5/8

11 1/2

18 3/4

6 1/4

1 1/2

750

36 3/8

46 5/8

15 3/4

4 1/8

2 5/8

11 1/2

18 3/4

6 1/4

1 1/2

1100

68 1/4

49 5/8

59 7/8

56 1/4

31 1/8

4 1/8

2 5/8

11 1/2

18 3/4

6 1/4

1 1/2

1200

68 1/4

49 5/8

59 7/8

56 1/4

31 1/8

4 1/8

2 5/8

11 1/2

18 3/4

6 1/4

1 1/2

1500

29 3/8

31 3/4

58 1/8

38 1/4

48 5/8

16 3/8

45 7/8

24 1/2

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

2 1/2

1 1/2

1 1/4

1750

29 3/8

31 3/4

62 5/8

42 5/8

53 1/8

16 3/8

50 3/8

24 1/2

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

2 1/2

1 1/2

1 1/4

2000

29 3/8

31 3/4

66 7/8

46 7/8

57 3/8

53 5/8

28 3/4

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

1 1/2

1 1/4

2500

29 3/8

31 3/4

73 1/2

52 5/8

63 5/8

25 3/4

60 3/8

34 1/2

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

1 1/2

3000

29 3/8

31 3/4

79 1/2

58 5/8

69 5/8

31 3/4

66 3/8

40 1/2

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

1 1/2

3500

29 3/8

31 3/4

86 1/2

63 5/8

24 7/8

72 5/8

32 7/8

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

1 1/2

4000

29 3/8

31 3/4

91 1/2

68 5/8

29 7/8

77 5/8

32 7/8

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

1 1/2

4500

29 3/8

31 3/4

96 1/2

73 5/8

34 7/8

82 5/8

42 7/8

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

1 1/2

2 1/2

5000

29 3/8

31 3/4

101 1/2

78 5/8

39 7/8

87 5/8

47 7/8

3 7/8

1 7/8

13 1/2

22 3/8

10 1/4

1 1/2

2 1/2

4504

35 3/4

39 1/4

59 3/4

72 1/4

20 3/4

67 7/8

28 7/8

2 1/2

3 1/2

17 7/8

25 5/8

1 1/2

2 1/2

5004

35 3/4

39 1/4

88 1/4

77 1/2

72 1/4

34 1/8

2 1/2

3 1/2

17 7/8

25 5/8

1 1/2

2 1/2

6004

35 3/4

39 1/4

102

75 1/2

35 1/2

85 1/2

44 5/8

2 1/2

2 3/4

17 7/8

25 5/8

1 1/2

Copper and copper nickel heat exchanger Stainless steel heat exchanger:

500 –1200 appliance inlet/outlet connections are 2” NPT 500 –1200 appliance inlet/outlet connections are 2” groove lock

1500 –5000 appliance inlet/outlet connections are 3” NPT 1500 –2500 appliance inlet/outlet connections are 2-1/2” groove lock

3000 - 5000 appliance inlet/outlet connections are 3” groove lock

4504 - 6004 appliance inlet/outlet connections are 4” groove lock

Table 4: Vent Sizes for a Single Appliance

DynaFlame Non-Condensing

DynaFlame Near-Condensing (DFX)

DynaFlame Condensing

Model

Vent Diameter Inches

Model

Vent Diameter Inches

Model

Vent Diameter Inches

Outdoor

Cat III

Up to

50 ft

Cat III

Up to

100 ft

Cat I

Outdoor

Cat IV Up

to 50 ft

Cat IV

Up to

100 ft

Cat II

Outdoor

Cat IV Up

to 50 ft

Cat IV

Up to

100 ft

Cat II

0500

0501

0502

0750

0751

0752

1100

1101

1102

1200

1201

1202

1500

1501

1502

1750

1751

1752

2000

2001

2002

2500

2501

2502

3000

3001

3002

3500

3501

3502

4000

4001

4002

*4500

*4501

*4502

4504

4514

4524

*5000

*5001

*5002

5004

5014

5024

6004

6014

6024

PART 2 AIR SUPPLY & VENTING

It is extremely important to follow these venting

instructions carefully. Failure to do so can cause severe

personal injury, death or substantial property damage.

Foam Core Pipe, PVC, CPVC are not to be used in any

part of the venting system.

2.1 GENERAL VENTING GUIDE

Figure 5: Venting Configurations

The DynaFlame is a category I, 85% efficient unit, supplied

as a non-condensing appliance.

•When supplied with the Condenser Heat Recovery

Module (CHRM).The DynaFlame is 95% efficient and is

considered to be a category II appliance.

•Provisions for combustion and ventilation air are to be in

accordance with the section “Air for Combustion and

Installation”, Of the National Fuel Gas Code, ANSI

Z223.1/NFPA 54, or clause 8.2, 8.3, 8.4 of “Natural Gas

and Propane Installation Code”, CAN/CSA B149.1.2, or

appliance provisions of the local building codes.

•The distance of the vent terminal from adjacent buildings,

windows that open and building openings MUST comply

with the latest edition of the National Fuel Gas Code,

ANSI Z223.1, in Canada, the latest edition of CAN/CGA

Standard B149 Installation Code for Gas Burning

Appliances and Equipment.

•For US Installations, the vent for this appliance shall not

terminate: i) over public walkways; or ii) near soffit vents

or crawl space vents or other areas where condensate or

vapor could create a nuisance or hazard or cause

property damage; or iii) where condensate vapor could

cause damage or be detrimental to the operation of

regulators, relief valves, or other equipment.

•Vent connection is made directly to the flue outlet opening

on the back of the unit. The connection from the appliance

vent to the stack must be made as direct as possible.

•Appliances for outdoor installation are intended to vent

using a listed vent cap. For indoor installations venting

must be in accordance with Part 7, Venting of Equipment,

of the National Fuel Gas Code, ANSI Z223.1, or Section

7, Venting of Equipment and Air Supply for Appliances, of

the CAN/CGA B149, Installation Codes, or applicable

provisions of the local building codes.

•Vent connectors serving appliances vented by natural

draft shall not be connected into any portion of mechanical

draft systems operating under positive pressure.

•Horizontal runs of vent pipe shall be securely supported

(approximately every 4 feet) to prevent sagging and

maintain a minimum upward slope of ¼" per foot from the

appliance to the vent terminal to provide drainage of the

vent towards the nearest drain or the vent termination.

The venting system must be installed with a means of

condensate disposal.

•The weight of theventing system must notrest on the unit.

Adequate support of the venting system must beprovided

in compliance with local codes and other applicable

codes.

•All connections should be secured and sealed per the

vent manufacturers specifications. When a Positive vent

system is disconnected for any reason, the flue must be

reassembled and resealed according to the vent

manufacturer’s instructions.

•Do not use an existing chimney as a raceway if another

appliance or fireplace is vented through the chimney.

2.1.1 CATEGORY I AND CATEGORY Ill VENTING

A Category I or Ill venting system for the flue products is

required on all non-condensing models (DynaFlame without

CHRM). A Category I venting system operates with a

negative pressure in the vent. The Category Ill venting

system operates with positive pressure generated by the

internal combustion air fan.

•The Category I flues from multiple appliances can be

combined into a common vent using recommendations

from published venting tables.

•Controls of single or multiple Category I appliances may

subject appliances to low fire operation for long periods

depending on control strategies being used. Under this

condition the venting does not reach the temperatures

required for evaporation of flue gas condensation

generated from initial start-up. To prevent nuisance

condensation, avoid this operating condition or use

corrosion resistant stainless steel venting.

•The Category Ill flues from multiple appliances CAN NOT

be combined into a common vent.

•The Category Ill flue must be a dedicated stack.

•The Category Ill Flue appliance must have all vent joints

and seams gas-tight. Unless a special venting system

made from AL29-4C or equivalent is used which has

integral seals,all vent connector seams and joints must

be sealed with pressure sensitive aluminium tape or

silicone sealant as specified by the vent manufacturer.

Aluminium tape must meet the provisions of SMACNA

AFTS -100-73 Standard.

•The flue products in a category III vent system may be

cooled below their dew point and form condensate in the

flue. Corrosion resistant stainless steel must be used for

the venting.

•When venting category III appliance thru unheated

spaces insulation should be wrapped around single wall

vent pipe to minimize the possibility of flue gas

condensation inside the vent unless AL29-4C or

equivalent special venting is used. The authorities have

jurisdiction must approve venting prior to insulating.

•The flue from a Category IIl vent system must have

provisions to properly collect and dispose of any

condensate that may occur in the venting system.

2.1.2 VENTING GUIDELINES FOR CATEGORY III

VENTING

•The installed length of the positive pressure category III

flue from the appliance to the point of termination, outside

of the building, must not exceed a maximum of 100

equivalent feet (30.5 m) in length. Depending on diameter

and centreline radius subtract from 7 to 19 feet per 90°

elbow using published data. Subtract half this value for

each 45° elbow.

•The flue may terminate either vertically at the roof top or

horizontally on a THRUWALL. See the information about

the specific vent termination location for recommended

location and clearances.

2.1.3 CATEGORY II AND CATEGORY IV VENTING

A Category II or IV venting system for the flue products is

required on all condensing models (DynaFlame with

CHRM).

A Category II venting system operates with a negative

pressure in the vent.

The Category IV venting system operates with positive

pressure generated by the internal combustion air fan which

operates the combustion process and also exhausts the flue

products from the building.

•The Category II flues from multiple appliances can be

combined into a common vent,this special venting system

must be engineered by venting manufacturer.

•The Category IV flues from multiple appliances CAN NOT

be combined into a common vent.

•The Category IV flue must be a dedicated stack.

•The Category IV Flue appliance must have all vent joints

and seams sealed gas-tight

•The flue products in the vent system will be cooled below

their dew point and form condensate in the flue and must

use AL29-4C material.

•The flue from a Category II and IV vent system must have

a condensate drain with provisions to properly collect,

neutralize and dispose of any condensate that may occur.

2.1.4 VENTING GUIDELINES FOR CATEGORY IV

VENTING

•The installed length of the Positive pressure category IV

flue from the appliance to the point of termination, outside

of the building, must not exceed a maximum of 100

equivalent feet (30.5M) in length. Depending on

diameter and centerline radius subtract from 7 to 19 feet

per 90° elbow using published data. Subtract half this

value for each 45° elbow.

•For Category IV site conditions exceeding 100 equivalent

feet an engineered vent system approved by the local

authority will be required.

•The flue may terminate either vertically at the roof top or

horizontally on a THRUWALL. See the information about

the specific vent termination location for recommended

location and clearances.

2.1.5 APPROVED VENTING MATERIALS

•Manufactured prefabricated UL/ULC listed vents of AL29-

4C, single or double wall.

•316L stainless steel in applications free of contaminants

like refrigerants, chlorine, etc.

Exhaust Vent for Use for DynaFlame Non-condensing

Category l Installations

1) “B” type.

2) Stainless Steel Single Wall (required when operating

appliance at low fire for long periods).

3) “C” Vent. (Canada ONLY)

4) Equivalent or higher rated than above

Exhaust Vent for Use for DynaFlame Non-condensing

Category lll Installations

1) Corrosion resistant stainless steel single wall.

2) AL29-4C or equivalent, single, or double wall.

Exhaust Vent for Use for DynaFlame Condensing

Category ll or lV Installations

1) AL29-4Cor equivalent, Single or Double Wall.

2) “BH” type.

Vent material selection for condensing and near

condensing applications

Camus condensing and near condensing boilers/water

heaters are category II or IV appliances and the exhaust vent

material must be UL/ULC listed for use with category IV

appliances operating under positive pressure in condensing

flue gas service.

Currently, manufactured prefabricated UL/ULClisted vents of

AL29-4C or 316L stainless steel must be used with the

Camus condensing and near condensing boiler/water

heaters.

NOTE

1) Use of cellular core PVC (ASTM F891), cellular core

CPVC or Radel® (polyphenosulfone) in venting

systems is prohibited.

2) Covering non-metallic vent pipe and fittings with

thermal insulation is prohibited.

If applicable, the venting system shall be installed in

accordance with the venting system manufacturer’s

instructions.

When selecting vent material take into consideration that

appliances installed near a corrosive or potentially corrosive

air supply must be isolated from it or they will suffer damage

to the appliance and the venting system.

The corrosion resistance of AL29-4C is typically higher than

that of 316L. Always choose the venting system which best

satisfies the requirements of the application.

This recommendation does not supersede local codes or

the provision of the B149 in Canada or the National Fuel

Gas Code in the United States

Intake Air (Supply Air, or Fresh Air) Piping

1) PVC Non Foam Core Pipe.

2) CPVC (Chlorinated Polyvinyl Chloride).

3) ABS (Acrylonitrile-Butadiene-Styrene).

4) Single wall, galvanized, stainless steel

Single wall vent pipes are to be insulated 5 feet from wall

toward the interior of the building to minimize external

sweating.

2.1.6 VENT TERMINATION CLEARANCES

•Do not terminate the vent in a window well, stairwell,

alcove, courtyard or other recessed area. The vent cannot

terminate below grade. The bottom of the vent terminal

shall be located at least 12 inches (30cm) above grade

and above normal snow levels. In all cases the appliance

shall be installed in accordance with local codes.

•To avoid a blocked flue condition, keep the vent

cap/terminal clear of snow, ice, leaves, debris, etc.

•Flue gases from this appliance may contain large

amounts of water vapour that will form a white plume in

winter. Plume could obstruct a window view.

•Flue gas condensate can freeze on exterior walls or on

the vent cap. Frozen condensate on the vent cap can

result in a blocked flue condition. Some discoloration to

exterior building surfaces canbe expected. Adjacent brick

or masonry surfaces should be protected with a rust

resistant sheet metal plate.

2.1.7 INLET CAP FOR ROOFTOP TERMINATION

The air inlet cap consists of two 90° elbows installed at the

point of termination for the air inlet pipe. The first 90° elbow

is installed on the rooftop at the highest vertical point of the

air inlet pipe and turned horizontal; the second 90° elbow is

screened and is installed on the horizontal outlet of the first

elbow and turned down. A 90° elbow and a 90° street elbow

may be used to make this assembly. If a straight piece of pipe

is used between the two elbows, it should not exceed 6"

(150mm) in length.

2.1.8 LOCATION OF A ROOFTOP AIR INLET AND

VENT CAPS

•The point of termination for the combustion air inlet cap

MUST be at least 3 feet (0.91M) below the point of flue

gas termination (vent cap) if it is located within a 5 foot

(1.5M) radius of the flue outlet. Use care to ensure that

the 90° elbow assembly is properly installed on the air

inlet pipe.

•The termination point of the combustion air inlet cap must

be installed at least 3 feet (0.91M) above the rooftop and

above normal snow levels.

•The vent cap assembly MUST be listed by nationally

recognized agencies.

•Combustion air supplied from outdoors must be free of

contaminants. To prevent recirculation of flue products in

to the combustion air inlet, follow all instructions in this

section.

•Incorrect installation and/or location of the air inlet cap can

allow flue products to be drawn back into the appliance.

This can result in incomplete combustion and potentially

hazardous levels of carbon monoxide in the flue products.

This will cause operational problems with the appliance

and if left uncorrected, will lead to conditions that can

cause personal injury or death.

2.1.9 AIR INLET DAMPER

In warmer climates, during cold weather, the use of ducted

outdoor air may result in the formation of condensation on the

interior panels of the combustion chamber. It may be possible

for this condensation to accumulate and drip out of the

appliance jacket. If this is not acceptable, it is advisable to

install a motorized combustion air damper in the combustion

air duct interlocked with the appliance’s start circuit. In cold

climates it is essential to provide a motorized air inlet damper

to control the supply of combustion air and prevent nuisance

condensation.

Figure 6: Air Inlet Damper Connection Inside J-Box

2.1.10 MASONARY CHIMNEY INSULATIONS

Always follow local codes when venting this appliance into a

masonry chimney. A standard masonry chimney must NOT

be used to vent the products of combustion from the flue of a

condensing, positive or negative pressure appliance

(Category II or IV). If a masonry chimney is to be used, the

chimney MUST use a sealed, metallic, corrosion resistant

liner system to vent flue products from this high efficiency

appliance. Sealed, metallic, corrosion resistant liner systems

(AL29-4C or equivalent, single wall or double-wall, or flexible

or rigid metallic liners) must be rated for use with a high

efficiency condensing, positive pressure vent system.

Corrosion resistant chimney liner systems are typically made

from a high grade of corrosion resistant stainless steel such

as AL29-4C or equivalent. The corrosion resistant liner must

be properly sized and fully sealed throughout the entire

length. If the flue is contained within the masonry chimney

both the top and the bottom of the masonry chimney must be

capped and sealed to provide a dead air space around the

sealed corrosion resistant metallic liner.

Consult with local code officials to determine code

requirements or the advisability of using a masonry

chimney with a sealed corrosion resistant liner system.

2.1.11 VERTICAL VENTING TERMINATION

•Follow Category II or IV vent termination and all general

instructions.

•The vent terminal should be vertical and exhaust outside

the building at least 2 feet (0.61m) above the highest point

of the roof within a 10 foot (3.05m) radius of the

termination.

•The vertical termination must be a minimum of 3 feet

(0.91m) above the point of exit.

•A vertical termination less than 10 feet (3.05m) from a

parapet wall must be a minimum of 2 feet (0.61m) higher

than the parapet wall.

YELLOW

BLACK

BLUE

RED

24VAC, COMMON

CALL FOR HEAT

TO IGNITION

24VAC, CONST.

POWER

2.1.12 COMBINED COMBUSTION AIR INLET

The air inlet pipes from multiple appliances can be combined

to a single common connection if the common air inlet pipe

has a cross sectional area equal to or larger than the total

area of all air inlet pipes connected to the common air inlet

pipe.

Equivalent pipe diameter = Sq Root [(d1)2+ (d2)2+ (d3)2+ (d4)2

+……+ (dn)2], d, pipe diameter

❖Example: What is equivalent pipe diameter of three air

inlet pipes, 8" (20.3 cm), 10” (25.4 cm) and 12” (30.5 cm)

Equivalent pipe diameter = Sq Root [(8)2+ (10)2+ (12)2] = Sq

Root (308) = 17.5”, Select 18” (82.8 cm) diameter pipe or

larger.

The air inlet point for multiple boiler air inlets must be provid-

ed with an exterior opening which has a free area equal to or

greater than the total area of all air inlet pipes connected to

the common air inlet. This exterior opening for combustion air

must connect directly to the outdoors. The total length of the

combined air inlet pipe must not exceed a maximum of 100

ft. (30.5M) equivalent feet. You must deduct the restriction in

area provided by any screens, grills or louvers installed in the

common air inlet point. Screens, grills or louvers installed in

the common air inlet can reduce the free area of the opening

from 25% to 75% based on the materials used. Calculate and

compensate accordingly for the restriction.

2.1.13 DRAIN TEE

Figure 7: Drain “T” and Neutralizer Cartridge Installation

A drain tee MUST be installed in the Condensing vent pipe to

collect and dispose of any condensate that may occur in the

vent system. The drain tee should be installed at the point

where the flue turns vertical for a roof top termination or as

one of the first fittings in a horizontal flue that will terminate

on a THRUWALL. Ensure that horizontal portions of the vent

are properly sloped to allow condensate to be evacuated at

the drain tee. Plastic drain tubing, sized per the vent

manufacturer’s instructions, shall be provided as a drain line

from the tee. The drain tubing must have a trap provided by

a 4" (10cm)-diameter circular trap loop in the drain tubing.

Prime the trap loop by pouring a small quantity of water into

the drain hose before assembly to the vent. Secure the trap

loop in position with nylon ties. Use caution not to collapse or

restrict the condensate drain line with the nylon wire ties. The

condensate drain must be routed to the condensate

neutralization system or a suitable drain for disposal of

condensate that may occur in the vent system.

Ensure that the drain from the condensate tee is not

exposed to freezing temperature.

2.2 CONVENTIONAL VENTING (INDOOR)

INSTALLATIONS

NON –CONDENSING

•The DynaFlame non-condensing is a category I appliance

and is approved for venting into a common standard

chimney. On single appliance installations with dedicated

chimney if drafts are excessive (above negative 0.15

Inches W.C.), install a single acting barometric damper

directly past the appliance’s flue outlet. A minimum draft

of 0.05 Inches W.C is required for operation. This damper

will control excessive draft & minimize standby losses.

•Multiple appliances may be vented into a conventional

chimney. The chimney must be lined. And a single acting

barometric damper must be provided for each appliance.

Vent diameters are to be increased over and above those

recommended in Table 5.

•The chimney must be protected from down drafts, rain

and debris by using a listed chimney cap.

•If the appliance is located in a room maintained at low

temperature and is being run for extended periods of time

at low fire it is likely that condensation will be formed in

the vent. Consideration must be given to heating the room

or providing a special venting system similar to that used

for condensing appliance application

CONDENSING

•The DynaFlame condensing version is a category II

appliance and is approved for venting into a common

properly designed chimney. On single appliance

installations with dedicated chimney, if drafts are

excessive (above negative 0.15 Inches W.C.), we

recommend a single acting barometric damper.

•A qualified professional using a proven vent-sizing

program with input of accurate operating parameters must

properly do sizing of the venting system. In applications

where flue gas temperatures are lower than can support

a Category II with conventional negative draft, it will be

determined at the venting design stage that a positive

pressure will be developed in the vent. It will then be

necessary to either provide separate vents as for

Category IV, pressurize the room or to provide an

extractor at the chimney outlet interlocked with the

appliance operating circuit in order to maintain a negative

draft in the chimney and allow common venting.

•Approval of the installation will be at the discretion of

authorities having jurisdiction.

IN GENERAL

•The operation of exhaust fans, compressors, air handling

units etc. can rob air from the room, creating a negative

pressure condition leading to reversal of the natural draft

action of the venting system. Under these circumstances

an engineered air supply is necessary.

•If the appliance is to be installed near a corrosive or

potentially corrosive air supply, the appliance must be

isolated from it and outside air should be supplied as per

code.

•Potentially corrosive atmospheres will result from

exposure to permanent wave solution, chlorinated waxes

and cleaners, chlorine, water softening chemicals, carbon

tetrachloride, halogen based refrigerants, Freon cleaning

solvents, hydrochloric acid, cements and glues, masonry

washing materials, antistatic fabricsofteners, dry cleaning

solvents, degreasing liquids, printing inks, paint removers,

etc.

•The equipment room MUST be provided with properly

sized openings to assure adequate combustion air and

proper ventilation when the unit is installed with a proper

venting system.

2.2.1 AIR REQUIRED FOR COMBUSTION AND

VENTILATION

Provisions for combustion and ventilation air are to be in

accordance with the section for “Air for Combustion and

Ventilation”, of the National Fuel Gas Code, ANSI

Z223.1/NFPA 54, or clause 8.2, 8.3, 8.4 of “Natural Gas and

Propane Installation Code”, CAN/CSA B149.1.2, or

applicable provisions of the local building codes.

If air is taken directly from outside the building with no duct,

provide two permanent openings:

a) Ventilation of the space occupied by fuel burning

appliance(s) or equipment shall be supplied by a

ventilation opening at the highest practicable point

communicating with the outdoors. The total cross

sectional area of the ventilation opening must be either

10% of the net free area required for combustion air or 10

sq. in (6500 mm2), whichever is greater.

b) Net free area of combustion air opening shall be in

accordance with all applicable codes. In the absence of

such codes provide combustion air opening with a

minimum free area of one square inch per 7,000 Btuh

input (5.5 cm per kW) up to 1,000,000 Btuh and one

square inch per 14,000 Btuh in excess of 1,000,000 Btuh.

This opening must be ducted no higher than 18” nor less

than 6” above the floor.

c) In extremely cold climates when air supply is provided by

natural air flow from the outdoors we recommend sizing

the combustion air supply opening with a minimum free

area of not less than one square inch per 30,000 Btu/hr,

of the total rated input of the burner, provided that this

does not conflict with local codes. This opening is in

addition to the ventilation opening defined in paragraph a)

above.

NOTE

Outside air openings shall directly communicate with the

outdoors.

CAUTION

Under no circumstances should the mechanical room ever

be under a negative pressure. Particular care should be

taken where exhaust fan, attic fans, clothes dryers,

compressors, air handling units, etc., may take away air

from the unit.

2.2.2 EXHAUST FANS

Any fan or equipment which exhausts air from the equipment

room may deplete the combustion air supply and/or cause a

downdraft in the venting system through a barometric damper

if installed. Spillage of flue products from the venting system

into an occupied living space can cause a very hazardous

condition that must be immediately corrected.

2.3 OUTDOOR VENTING

The DynaFlame windproof cabinet protects the unit from

weather, when fitted with the factory supplied air intake and

UL approved vent cap (93-0298), it will be self-venting and

suitable for outdoor installation.

1) Outdoor models must be installed outdoors and must use

the Air Intake and Vent Cap supplied by Camus

Hydronics.

2) Periodically check to ensure that air intake and vent cap

are not obstructed.

3) Locate appliance at least 3 feet away from any overhang.

4) Locate appliance at least ten feet from building air intake.

5) Avoid installation in areas where runoff from adjacent

building can spill onto appliance.

For outdoor installations, always consider the use of a shelter

such as a garden shed in lieu of direct exposure of the

appliance to the elements. The additional protection afforded

by the shelter will help to minimize nuisance problems with

electrical connections and will allow easier servicing of the

appliance under severe weather conditions.

2.4 THRUWALL VENTING

When fitted with the factory supplied vent terminal, the

DynaFlame can vent up to 100 equivalent feet. Elbows can

range from 7 to 19 feet in equivalent length depending on

centreline radius. Refer to table 4 for vent sizes.

Appliances may be installed with either a horizontal sidewall

vent or vertical roof top vent. Terminals differ with each

application. Horizontal lengths over 5 feet must be installed

using corrosion resistant stainless steel. Use single wall vent

and seal all joints or use pressure rated double wall vent.

When using single wall vent, all vent connector seams and

joints must be sealed with pressure sensitive aluminium tape

or silicone sealant as specified by the vent manufacturer.

Aluminium tape must meet the provisions of SMACNA AFTS-

100-73 Standard.

When venting through unheated spaces, use venting material

which will minimize flue gas condensation inside the vent.

Provisions must be made for collecting and disposing of any

condensation which may occur. The authorities having

jurisdiction must approve venting.

Periodically check to ensure that the vent terminal is

unobstructed.

This venting system uses the appliance’s internal combustion

air fan to force the flue products out horizontally. Vent cap

and venting must be listed type Category IV vent materials.

The DynaFlame fan generates a positive pressure in the flue.

Combustion air is drawn from the equipment room The

THRUWALL termination caps are available from the factory

as a kit. Refer to local codes for proper installation and

location of vent terminals.

2.4.1 THRUWALL VENT CAP (14-0090) THRUWALL

INTAKE AIR CAP (14-0101)

•The THRUWALL vent cap kit includes the wall penetration

assembly and the discharge screen assembly.

•The opening through the wall for installation of the

THRUWALL vent cap must provide an air space

clearance of 1 inch (2.5cm) around the flue pipe. The

diameter of the opening for installation of the THRUWALL

vent cap will be 2 inches (5cm) larger than the nominal

diameter of the installed vent pipe to the THRUWALL vent

cap. The diameter of the opening for the air inlet cap will

be the same as the nominal size of the pipe.

•Install the proper vent pipe to the vent cap (provided by

Camus Hydronics).

•Follow all requirements in the General Venting sections

for venting flue products to the outdoors.

2.4.2 LOCATION OF A THRUWALL VENT

TERMINATION

•The vent cap shall terminate at least 3 feet (1M) above

any forced air inlet within 10 feet (3M) horizontally.

•The vent cap MUST NOT terminate below a forced air

intake at any distance.

•Do not terminate the vent in a window well, stairwell,

alcove, courtyard or other recessed area. The vent cannot

terminate below grade.

•The vent shall not terminate near soffit vents or crawl

space vents or other areas where condensate or vapor

could create a nuisance or hazard or cause property

damage.

•The vent shall not terminate over public walkways.

•The vent system shall terminate at least 3 foot (1M) above

grade, above normal snow levels and at least 7 feet

(2.15M) above grade when located adjacent to public

walkways.

•The vent terminal shall not be installed closer than 3 feet

(1M) from an inside corner of an L-shaped structure.

•The vent cap should have a minimum clearance of 4 feet

(1.25M) horizontally from and in no case above or below,

unless a 4-foot (1.25 m) horizontal distance is maintained

from electric meters, gas meters, regulators and relief

equipment. In all cases local codes take precedence.

•Flue gas condensate can freeze on exterior walls or on

the vent cap. Frozen condensate on the vent cap can

result in a blocked flue condition. Some discoloration to

exterior building surfacescan be expected. Adjacent brick

or masonry surfaces should be protected with a rust

resistant sheet metal plate.

•The THRUWALL vent cap MUST be purchased as a kit

from the factory to ensure proper operation. Locally

purchased or fabricated THRUWALLvent caps should not

be used.

•The vent shall not terminate where condensate vapor

could cause damage or could be detrimental to the

operation of regulators, relief valves, or other equipment.

2.4.3 LOCATION OF A “THRUWALL” AIR INLET CAP

•The termination point of the THRUWALL air inlet must be

installed a minimum of 3 feet above ground level and

above normal levels of snow accumulation.

•The point of termination for the THRUWALL combustion

air inlet cap MUST be located a minimum of 3 feet (1M)

horizontally and 12 inches (0.30M) below the point of flue

gas termination (vent cap) if it is located within a 10 foot

(3M) radius of the flue outlet.

2.4.4 LENGTH OF AIR INLET PIPE

The maximum total length of the THRUWALL or vertical roof

top combustion air inlet pipe as installed from the appliance

to the air inlet cap must not exceed (100 ft) equivalent feet

(30.5m) in length. Subtract 7 (2.13 m) to 19 feet (5.8 m) of

equivalent length depending on centreline radius for each 90°

elbow installed in the air inlet pipe system. Pressure drop in

45° elbow will be half as much.

Do not exceed limits for the combustion air inlet piping

lengths.

2.4.5 SIDEWALL CLEARANCE SPECIFICATIONS

Direct Vent Terminal Clearances

Canadian Installations1

US Installations2

Clearance above grade, veranda, porch, deck, or balcony

12” (30 cm)

Clearance to window or door that may be opened

6” (15 cm) for appliances <10,000

Btuh (3kW)

12” (30cm) for appliances

>10,000 Btuh (3kW) and ≤

100,000 Btuh (30kW)

36” (91cm) for appliances

>100,000 Btuh (30kW)

6” (15 cm) for appliances <10,000

Btuh (3kW)

9” (23cm) for appliances >10,000

Btuh (3kW) and ≤ 50,000 Btuh

(15kW)

12” (30cm) for appliances

>50,000 Btuh (15kW)

Clearance to permanently closed window

Vertical clearance to ventilated soffit located above the terminal

within a horizontal distance of 2 ft (61cm) from the center line of

the terminal.

Clearance to unventilated soffit

Clearance to outside corner

Clearance to inside corner

Clearance to each side of center line extended above

meter/regulator assembly

3 ft (91 cm) within a height of 15 ft

(4.6 m) above the meter/ regulator

assembly

Clearance to service regulator vent outlet

3 ft (91 cm)

Clearance to non-mechanical air supply inlet to building or the

combustion air inlet to any other appliance

6” (15 cm) for appliances <10,000

Btuh (3kW)

12” (30 cm) for appliances

>10,000 Btuh (3kW)

36” (91cm) for appliances

>100,000 Btuh (30kW)

6” (15 cm) for appliances <10,000

Btuh (3kW)

9” (23 cm) for appliances >10,000

Btuh (3kW) and <50,000 Btuh (15

kW)

12” (30cm) for appliances

>50,000 Btuh (15kW)

Clearance to a mechanical air supply inlet

6 ft (1.83 m)

3 ft (91 cm) above if within 10 ft (3

m) horizontally

Clearance above paved sidewalk or paved driveway located on

public property

7 ft (2.13 m)α

7 ft (2.13 m) for mechanical draft

systems (Category I appliances).

Vents for Category II and IV

appliances cannot be located

above public walkways or other

areas where condensate or vapor

can cause a nuisance or hazard.

Clearance under veranda, porch deck, or balcony

12” (30 cm)β

1In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code

2In accordance with ANSI Z223.1/ NFPA 54 National Fuel Gas Code

αA vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings

and serves both dwellings

βPermitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

* For clearances not specified in ANSI Z223.1/ NFPA 54 or CSA-B149.1. Clearance in accordance with local installation

codes and the requirements of the gas supplier

Other than Direct Vent Terminal Clearances

Canadian Installations1

US Installations2

Clearance above grade, veranda, porch, deck, or balcony

12” (30 cm)

Clearance to window or door that may be opened

6” (15 cm) for appliances <10,000

Btuh (3kW)

12” (30cm) for appliances

>10,000 Btuh (3kW) and ≤

100,000 Btuh (30kW)

36” (91cm) for appliances

>100,000 Btuh (30kW)

4 ft. (1.2 m) below or to side of

opening; 1 ft (300 mm) above

opening

Clearance to permanently closed window

Vertical clearance to ventilated soffit located above the terminal

within a horizontal distance of 2 ft (61cm) from the center line of

the terminal.

Clearance to unventilated soffit

Clearance to outside corner

Clearance to inside corner

Clearance to each side of center line extended above

meter/regulator assembly

3 ft (91 cm) within a height of 15 ft

(4.6 m) above the meter/ regulator

assembly

Clearance to service regulator vent outlet

3 ft (91 cm)

Clearance to non-mechanical air supply inlet to building or the

combustion air inlet to any other appliance

6” (15 cm) for appliances <10,000

Btuh (3kW)

12” (30 cm) for appliances

>10,000 Btuh (3kW) and

<100,000 Btuh (30 kW)

36” (91cm) for appliances

>100,000 Btuh (30kW)

4 ft (1.2m) below or to side of

opening; 1 ft (300 mm

Clearance to a mechanical air supply inlet

6 ft (1.83 m)

3 ft (91 cm) above if within 10 ft (3

m) horizontally

Clearance above paved sidewalk or paved driveway located on

public property

7 ft (2.13 m)α

7 ft (2.13 m) for mechanical draft

systems (Category I appliances).

Vents for Category II and IV

appliances cannot be located

above public walkways or other

areas where condensate or vapor

can cause a nuisance or hazard.

Clearance under veranda, porch deck, or balcony

12” (30 cm)β

1In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code

2In accordance with ANSI Z223.1/ NFPA 54 National Fuel Gas Code

αA vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings

and serves both dwellings

βPermitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

* For clearances not specified in ANSI Z223.1/ NFPA 54 or CSA-B149.1. Clearance in accordance with local installation

codes and the requirements of the gas supplier

This manual suits for next models

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