STIEBEL ELTRON HydroShark 199LP Instruction Manual

OPERATION AND INSTALLATION
UTILISATION ET INSTALLATION
Condensing Gas Micro-boiler
»HydroShark199NG
»HydroShark199LP
Conforms to ANSI Z21.10.3/CSA 4.3
Conforme à la norme ANSI Z21.10.3/CSA 4.3

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HydroShark 199 Condensing Gas Micro Boiler
Installation Manual and Owner’s Guide
If the information in these instructions is
not followed exactly, a fire or explosion
may result causing property damage,
personal injury or death.
-Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
-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.
-Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
Models:
HydroShark 199NG
HydroShark 199LP
Featuring
• Efficiency: 95 %
• Wall Hung
• Flow Activated: .5 GPM
• Copper Heat Exchanger
• Temperature Range: 80°-160° F*
• Freeze Protection
• Power Vent
• PVC Venting
*Up to 185 with optional control
The HydroShark 199 Condensing
Gas Micro Boiler is a compact and
powerful residential unit with a versatile
BTU modulating range.
Do not return. Damages or repairs call
HydroShark 800.805.5384

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CONTENTS
Installation Manual
SPECIFICATIONS..........................................................................................................4
INTRODUCTIONS..........................................................................................................5
SAFETY GUIDELINES...................................................................................................6
INSTALLATION...............................................................................................................7
General................................................................................................................7
Clearances...........................................................................................................9
Included accessories............................................................................................9
High-altitude installations....................................................................................10
Venting instructions.............................................................................................11
Gas supply and gas pipe sizing..........................................................................21
Water connections..............................................................................................23
Condensate drain...............................................................................................25
Electrical connections.........................................................................................26
APPLICATIONS..................................................................................................27
INITIAL OPERATION..........................................................................................29
OWNER’S GUIDE
OPERATING SAFETY...................................................................................................31
NORMAL OPERATION.................................................................................................33
Temperature controller and Remote controller...................................................33
General..............................................................................................................33
Temperature Settings.........................................................................................34
Temperate table of controller..............................................................................34
Additional features..............................................................................................35
Temperature setting on the PCB (without remote controller).............................36
Flow....................................................................................................................37
Freeze protection system...................................................................................37
Maintenance and service...................................................................................38
Unit draining and filter cleaning..........................................................................38
TROUBLESHOOTING..................................................................................................39
General...............................................................................................................39
Error codes.........................................................................................................41
COMPONENTS DIAGRAM...........................................................................................44
PARTS LIST...................................................................................................................48
OUTPUT TEMPERATURE CHART...............................................................................50

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Installation Manual
CONGRATULATIONS
Congratulations and thank you for choosing our condensing micro boiler.
Before use, we recommend that you read through this installation manual
carefully. Keep this manual for future reference.
If you need an additional manual, contact the manufacturer or your local
distributor. When you call, please tell us the product name and the serial
number of your unit written on the rating plate of the boiler.

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SPECIFICATIONS
*18-25 PSI is recommended for maximum flow (Space Heating)
**The Manifold Pressure is the factory setting and generally should not need adjustment.
NOTE:
• Check the rating plate to ensure this product matches your specifications.
• The manufacture reserves the right to discontinue, or change at any time, specifications, or
designs without notice and without incurring obligation.
*When using boiler in-conjunction with HydroShark DHW Integrator Panel, system pressure may be much higher on your
domestic water side. Your space heating side should still reflect the recommended 18-25 PSI for system pressure.
HydroShark 199 Gas Condensing Micro-Boiler
BTU/h
Natural Gas Input
(Opera Range)
000,51 :.niM
Max.: 199,000
BTU/h
Propane Input
(Opera Range)
Gas
000,31 :.niM
Max.: 199,000
3/4" NPT
Water 3/4" NPT
psi
(MPa)
Water Pressure* 15 - 150 (0.1 - 1)
(kPa)
inch W.C.
Natural gas
Inlet Pressure
Min. 5.0 (1.24)
Max. 10.5 (2.61)
Propane
Inlet Pressure
inch W.C.
(kPa)
Manifold
Min. 8.0 (1.99)
Max. 14.0 (3.48)
Pressure**
Gas
Natural inch W.C. 2.95
(Pa) (734)
Propane 3.3
(Pa)
inch W.C.
(821)
Weight lbs. (kg) 59 (26.8)
Dimensions inch
mm
Electric
Electric
Supply
H 22.4 x W 17.7 x D 10.7
H 570 x W 450 x D 272
VAC/Hz 120 / 60
Consump
Opera W / A 89.0 / 0.74
Standby W / A 4.2 / 0.04
Freeze-
Prot W / A 175 / 1.5

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INTRODUCTION
• This manual provides information necessary for the installation, operation, and maintenance of the
boiler.
• The model description is listed on the rating plate which is attached to the side panel of the boiler.
• Please read all instructions completely before installing this product.
• If you have any problems or questions regarding this equipment, consult the manufacturer or its
local representative.
• This equipment is a condensing micro boiler designed to efficiently supply endless hot water for
your needs. (Radiant Heating, or Domestic Water used in-conjunction with Radiant Heating) See
DHW Integrator Panel for more information on integrating domestic water with your radiant heat-
ing system.
• These high efficiency models have a built-in secondary heat exchanger that absorbs latent heat
from the exhaust gas.
• These boilers are only to be installed indoors.
• The principle behind condensing micro boilers is easy:
*This diagram illustrates condensing micro boiler design concepts only and does not accurately repre-
sent the boilers physical description.
1. Your thermostat indicates a need for heat and turns on the circulator pump(s).
2. Water flows through the boiler.
3. The flow sensor detects the water flow.
4. The computer initiates the fan motor and sends a signal to the igniter to create an ignition spark.
5. The gas ignites and flames appear within the burner chamber.
6. Water circulates through the heat exchanger and then gets hot.
7. Using thermistors to measure temperatures throughout the micro-boiler, the computer modulates
the gas and water valves to ensure proper output water temperature.
8. When your room reaches desired temperature the pumps turn off and the boiler shuts down.
Exhaust
Secondary
heat exchanger
Condensate
drain port
Gas
Cold water inlet
Hot water outlet
Fan motor
Gas valves
Computer board
Thermistor
Thermistor
Bypass valve
Primary
heat exchanger
Intake port
Exhaust thermistor
Thermistor
Water control valve
Flow sensor
Burners

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SAFETY GUIDELINES
SAFETY DEFINITION
GENERAL
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
Indicates an imminently hazardous situation which, if not avoided, could result in
death or serious injury.
Indicates an imminently hazardous situation which, if not avoided, could result in
minor or moderate injury.
1. Follow all local codes , or in the absence of local codes, follow the current edition of the National
Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or B149.1 Natural Gas, Propane Installation
Code in Canada.
2. Properly ground the unit in accordance with all local codes or in the absence of local codes, with
the National Electrical Codes: ANSI/NFPA 70 in the USA or CSA standard C22.1 Canadian Electri-
cal Code Part 1 in Canada.
3. Carefully plan where you intend to install the micro boiler. Please ensure:
•Your micro boiler will have enough combustible air and proper ventilation
•Locate your micro boiler where water leakage will not damage surrounding areas.
4. Check the rating plate for the correct Gas Type, Gas Pressure, Water Pressure and Electric
Rating.
5. *If this unit does not match your requirements, do not install and consult with the manufacture.
6. If any problem should occur, turn off the unit and unplug the zone controls for the space heating
and/or DHW Integrator Panel system zone controls and turn off the gas. Then call a trained techni-
cian or the Gas Company or the manufacture.
• Water temperature over 125°F (52°C) can cause severe burns instantly or
death from scalding. The water temperature is set at 120°F (50°C) from the
factory to minimize any scalding risk. If using micro boiler with HydroShark
DHW Integrator Panel, always check the water temperature. Always verify
emitter water delivery temperature requirements to avoid damage.
• Do not store or use gasoline or other flammables, vapors, or liquids in the
vicinity of this appliance.
• Do not reverse the fluid and/or gas connections as this will damage the gas
valves and can cause sever injury or death.
• Do not use this appliance if any part has been in contact with or been im-
mersed in water. Immediately call a licensed plumber, a licensed gas fitter, or
a professional service technician to inspect and/or service the unit if neces-
sary.
• Do not disconnect the electrical supply if the ambient temperature will drop
below freezing. The freeze protection system only works if the unit has electri-
cal power. The warranty will not be covered if the heat exchanger is damaged
due to freezing.
DANGER
WARNING
CAUTION
WARNING

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INSTALLATION
GENERAL
1. Follow all local codes, or in the absence of local codes, follow the current edition of the National
Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or B149.1 Natural Gas, Propane Installation
Code in Canada.
2. All gas micro boilers require careful and correct installation to ensure safe and efficient operation.
This manual must be followed exactly. Read the “Safety Guidelines” section.
3. The manifold gas pressure is preset at the factory. It is computer controlled and should not need
adjustment.
4. Maintain proper space for servicing. Install the unit so that it can be connected or removed easily.
Refer to the “Clearances” section for proper clearance.
5. The micro boiler must be installed in a location where the proper amount of combustible air will be
available to it at all times without obstructions.
6. The electrical connections requires a means of disconnections, to terminate power to the micro
boiler for servicing and safety purposes.
7. Do not install the unit where the exhaust vent is pointing into any opening in the building or where
the noise may disturb your neighbors. Make sure the vent termination meets the required distance
by local code from any doorway or opening to prevent exhaust from entering a building.
8. Particles from flour, aerosols, and other contaminants may clog the air vent, build up and reduce
the functions of the rotating fan, cause improper burning of the gas, or cause damage to the micro
boiler. Regularly ensure that the area around the unit is dust or debris free. Regular maintenance
is recommended for these types of environment.
9. The HydroShark 199 condensing gas boiler is to be installed indoors only. This unit is equipped
with thermistors and a hi-limit switch for the exhaust gas, detecting excess temperatures within
the flue and enabling the unit to safely stop operations. These components are always monitoring
exhaust gas conditions in order to prevent heat damage to ABS, PVC, CPVC, or polypropylene
(Plastic) venting if ABS, PVC, CPVC, or polypropylene is used. If the exhaust gas temperatures
exceeds 140° F, these components will enable the unit to safely stop operations.
• The micro-boiler requires 3” or 4” make-up intake air supply pipe. The intake pipe must be sealed
airtight.
• Air supply pipe can be made of ABS. PVC (solid core), CPVC (solid core), polypropylene, corru-
gated stainless steel, or Category III/IV stainless steel. Regarding exhaust pipe refer to the “Ex-
haust section” under venting instructions.
• Sidewall venting is recommend for this boiler. Vertical venting (roof termination) is acceptable.
• The manufacturer recommends running the exhaust vent and the intake pipe as parallel as possi-
ble.

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• Installation and service must be performed by a qualified installer (for
example, a licensed plumber or gas fitter, otherwise the warranty will be
void.
• The installer (licensed professional) is responsible for the correct instal-
lation for the micro boiler and for compliance with all national, state /
provincial, and local codes.
• The manufacturer does not recommend installing the micro boiler in a
pit or location where gas and water can accumulate.
• Do not have the vent terminal pointing toward any operating window, door, or
opening into a building.
• Do not install next to any source of airborne debris, such as clothes dryer, that
can cause debris to be trapped inside the combustion chamber, unless the
system is direct vented.
• The manufacturer does not recommend installing the micro boiler in an
attic due to safety issues. If you install the micro boiler in an attic:
-Make sure the unit will have enough combustion air and proper ventilation.
-Keep the area around the micro boiler clean. When dust collects on the
flame sensor, the micro boiler will shut down on an error code.
-Place the unit for easy access for service and maintenance.
-A drain pan, or other means of protection against water damage, is to be
installed under the micro boiler in case of leaks.
• The warranty will not cover damage cause by water quality.
-Only distilled water or distilled water/glycol mixtures can be used with this
micro boiler, unless when used in-conjunction with Stiebel Eltron DHW Integra-
tor Panel system. Do not introduce pool or spa water, or any chemically treated
water into the micro boiler.
-Water hardness levels must not exceed 7 grains per gallon (120 ppm) for
single family applications or more than 4 grains per gallon (70 ppm) for all other
types of applications/ Water hardness leads to scale formation and may affect
/ damage the micro boiler. Hard water scaling must be avoided or controlled by
proper water treatment.
-Water pH levels must be between 6.5 and 8.5.
-Well water must be treated.
• Do no install the micro boiler where water, debris, or flammable vapors may
get into the flue terminal.
• Although the micro boiler is designed to operate with minimal sound, the
manufacturer does not recommend installing the unit on a wall adjacent
to a bedroom, or a room that is intended for quiet study or meditation,
etc.
• Locate your boiler close to a drain where water leakage will not do damage to
surrounding areas. As with any water heating appliance, the potential for leak-
age at some time in the life of the product does exist. The manufacturer will
not be responsible for any water damage that may occur. If you install a drain
pan under the unit, ensure that it will not restrict the combustion air flow.
WARNING
CAUTION

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CLEARANCES
INCLUDED ACCESSORIES
Check that these items below are included with the micro boiler.
Maintain all clearances around
the micro-boiler.
Model Top Bo om Front Back Sides
HydroShark 199NG
(Natural Gas)
12 in.
(914 mm)
12 in.
(305 mm)
24 in.
(610 mm)
0.5 in.
(13 mm)
2 in.
(51 mm)
*24 inches recommended for maintenance.
Back
Side
Side
Front
Top
12 in.
HydroShark 199LP
(Liquid propane) (914 mm)
12 in.
(305 mm)
24 in.
(610 mm)
0.5 in.
(13 mm)
2 in.
(51 mm)
Installa manual and owner’s
guide
Bird screen
1:ytQ Qty: 2

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HIGH-ALTITUDE INSTALLATIONS
Check the elevation where your micro boiler is installed. Set DIPswitches shown in the table
below depending on the altitude.
NOTE: The dark squares indicate the direction the DIPswitches should be set to.
DO NOT adjust any DIPswitches on the upper bank.
0 (DEFAULT) Up to 2,500 Up to 5,000 Up to 7,500
HydroShark 199 Boiler
Up to 10,100
(Lower bank of
DIPswitches) No. 2 : OFF
No. 3 : OFF
No. 4 : OFF
No. 2 : OFF
No. 3 : ON
No. 4 : OFF
No. 2 : OFF
No. 3 : OFF
No. 4 : ON
No. 2 : OFF
No. 3 : ON
No. 4 : ON
No. 2 : ON
No. 3 : ON
No. 4 : ON
OFF
ON 123456
OFF
ON 123456
OFF
ON 123456
OFF
ON 123456
DIPswitches
OFF
ON 123456
WARNING
Computer board
Lower bank of DIPswitches

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VENTING INSTRUCTIONS
GENERAL
• Improper venting of this appliance can result in excessive levels of carbon
monoxide which can result in severe personal injury or death.
• Improper installation can cause nausea or asphyxiation, severe injury or death
from carbon monoxide and flue gases poisoning. Improper installation will
void product warranty.
When installing the vent system, all applicable national and local codes must be
followed. If you install thimbles, fire stops or other protective devices and they
penetrate any combustible or noncombustible construction, be sure to follow all
applicable national and local codes.
This appliance must be vented in accordance with the section” Venting of Equipment” of the current
edition of the National Fuel Gas Code: ANSI Z223.1/NFPA 54 in the United States and/or Section 8 of
the B149.1 Natural Gas and Propane Installation Code in Canada, as well as applicable local building
codes. The use of venting materials approved for Category III/IV appliances is recommended when-
ever possible. However, this appliance may also be vented with plastic pipe materials such as ABS,
PVC (solid core), CPVC (solid core), or polypropylene. For details, please refer toe the Exhaust
Vent (ABS, PVC, CPVC, or Polypropylene Vent) Section. Vent installations in Canada which utilize
plastic vent systems must use venting that complies with ULC S636.
General rules for venting micro boilers are:
General rules for vent terminations:
• Place the micro boiler as close as possible to the vent termination.
• The vent collar of the micro boiler must be fastened directly to an unobstructed vent pipe.
• Do not weld the vent pipe to the micro boiler’s vent collar.
• Do not cut the vent collar of the unit.
• The vent must be easily removable from the top of the boiler for normal service and inspection of
the unit.
• The micro boiler vent must not be connected to any other gas appliance or vent stack except an
approved common venting system.
• Avoid using an oversized vent pope or using extremely long runs of the pope unless it is part of an
approved common vent system.
• For rooftop venting, a rain cap or other from of termination that prevents rain water from entering
into the micro boiler must be installed.
• Do not terminate vent into chimney. If the vent must go through the chimney, the vent must run all
the way through the chimney with approved vent pipe.
• Avoid locating the micro boiler vent termination near any air intake devices. These fans can pick
up the exhaust flue products from the micro boiler and return them to the building. This can create
a health hazard.
• Locate the vent termination so that it cannot be blocked by any debris, at any time. Most codes re-
quire that the termination be at least 12 in. (305 mm) above grade, but the installer may determine
if it should be higher depending on the job site condition and applicable codes.
• A proper sidewall termination is recommended when the micro boiler is vented through a sidewall.
• Be sure to check the clearance form the exhaust termination to the air inlet or opening in the vent
termination clearances section.
DANGER
CAUTION

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DIPswitch settings for Vent length
<Two-pipe, direct-vent installation>
Set DIPswitches shown in the tables below depending on vent length.
<Single pipe with room-air intake installation>
Set DIPswitches shown in the tables below depending on vent length.
4"
Vent length (Upper bank of DIPswitches)
5 to 50
(DEFAULT) No. 3 : ON
No. 4 : OFF
51 to 100
No. 3 : OFF
No. 4 : OFF
ON 12345678
OFF
ON 12345678
OFF
3"
Vent length (Upper bank of DIPswitches)
5 to 20
(DEFAULT) No. 3 : ON
No. 4 : OFF
21 to 40
No. 3 : OFF
No. 4 : OFF
41 to 70
No. 3 : ON
No. 4 : ON
ON 12345678
OFF
ON 12345678
OFF
ON 12345678
OFF
3"
Vent length (Upper bank of DIPswitches)
5 to 45
(DEFAULT) No. 3 : ON
No. 4 : OFF
46 to 70
No. 3 : OFF
No. 4 : OFF
ON 12345678
OFF
ON 12345678
OFF

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Exhaust vent (ABS, PVC, CPVC, or polypropylene vent)
This appliance can be vented with ABS, PVC, CPVC, or polypropylene (temperature rated up to
149°F). Vent material certified to ULC S636 standards is recommended in the USA. In Canada, plas-
tic venting must be certified to ULC S636 standards.
• The maximum length of exhaust vent piping must not exceed 70 ft. (21.3 m) for 3” venting, which
depends on the elevation where the micro boiler is installed, and 100 ft (30.5 m) for 4” venting (de-
ducting 5 ft. (1.5 m) for each elbow used in the venting system). Do not use more than 5 elbows.
See the table below.
• When the horizontal vent run exceeds 5 ft. (1.5 m), support the vent run at 3 ft. 0.9 m) intervals
with overhead hangers.
*For each elbow added, deduct 5 ft. (1.5 m) from max vent length.
Excludes vent terminators, termination elbows, or rain caps.
Item Material CanadaUnited States
Exhaust pipe and
Fi
Schedule 40 PVC ANSI/ASTM D1785
PVC-DWV
ULC S636
Materials Only
ANSI/ASTM D2665
Schedule 40 CPVC ANSI/ASTM F441
Schedule 40 ABS-DWV ANSI/ASTM D2661
UL-1738Polypropylene
Pipe Cement/Primer
PVC ANSI/ASTM D2564
CPVC
ABS
ANSI/ASTM F493
ANSI/ASTM D2235
NOTE: Do NOT Use Cellular Foam Core Pipe
Diameter Max. No. of Elbows
53 in. (76 mm) 70 (21.3 m)
5
Max. V cal and Horizontal (Total) Vent Length
4 in. (102 mm) 100 (30.5 m)
No. of Elbows 3" ven 4" ven
Up to 3,000
Max. V cal or Horizontal (Total) Vent Length
Up to 6,000 Up to 10,100
0
Up to 10,100
70 (21.3 m) 40 (12.2 m) 25 (7.6 m)
1
100 (30.5 m)
65 (19.8 m) 35 (10.7 m) 20 (6.1 m)
2
95 (29.0 m)
60 (18.3 m) 30 (19.1 m) 15 (4.6 m)
5
90 (27.4 m)
N/A45 (13.7 m) N/A 75 (22.9 m)

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Two-pipe, direct vent illustrations
Typical installation using PVC. ABS, or polypropylene vent
Horizontal Installation Vertical Installation
For details of the optional items, refer to the installation manual for each optional item.
<How to install intake and exhaust venting (two-pipe, direct vent)
3” vent connection
1. Connect 3” couplings directly on
the exhaust and intake vent collar
of the micro boiler.
2. Connect 3” straight pipes to the
couplings.
From 3” to 4” vent connection
1. Connect 3” x 4” increasers directly
on the exhaust and intake vent
collar of the micro boiler
2. Connect 4” straight pipes to the
increasers.
Roof
Roof
Fire stop
Wall
Connect between exhaust vent collar and piping.
See the below.
3” coupling
Exhaust vent collar
(Female)
3” straight pipe
3” coupling
Intake vent collar
(Female)
3” straight pipe
4” straight pipe
3"x4" increaser
Exhaust vent collar
(Female)
4” straight pipe
Intake vent collar
(Female)
3"x4" increaser

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Single pipe with room-air intake illustrations
Typical installation using PVC. ABS, or polypropylene vent
Horizontal Installation Vertical Installation
For details of the optional items, refer to the installation manual for each optional item.
<How to install single vent>
3” vent connection
1. Connect 3” elbow directly on the
intake vent collar of the micro boiler.
2. Connect a 3” coupling directly on
the exhaust vent collar of the micro
boiler.
3. Connect a 3” straight pipe to the
coupling.
From 3” to 4” vent connection
1. Connect 3” elbow directly on the
intake vent collar of the micro boiler.
2. Connect 3” x 4” increasers directly
on the exhaust vent collar of the
micro boiler
3. Connect a 4” straight pipe to the
increasers.
Roof
Fire stop
Connect between exhaust vent collar and piping.
See the below.
Roof
Elbow
Elbow
Wall
3” coupling
3” straight pipe
3” elbow with
Exhaust vent collar
(Female)
bird screen
Intake vent collar
(Female)
4” straight pipe
3"x4" increaser
Exhaust vent collar
(Female)
3” elbow with
bird screen
Intake vent collar
(Female)

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Exhaust vent (Stainless Steel Vent)
This is a Category IV appliance and must be vented accordingly. The vent system must be sealed
airtight. All seams and joints without gaskets must be sealed with high heat resistant silicone sealant
or UL listed aluminum adhesive tape having a minimum temperature rating of 160° F. For best results,
a vent system should be as short and straight as possible.
• The micro boiler is a Category IV appliance and must be vented accordingly with any 4” vent ap-
proved for use with Category III/IV or Special BH type gas vent.
• The manufacturer recommends the NovaVent line. However, the following are also UL listed man-
ufactures: ProTech Systems Inc.(FasNSeal), Metal-Fab Inc., and Heat-Fab Inc. (Saf-T-Vent).
• Follow the vent pipe manufacturer’s instructions when installing the vent pipe.
• The maximum length of exhaust vent piping must not exceed 100 ft. (30.5 m) (deducting 5 ft (1.5
m) for each elbow used in the venting system). Do not use more than 5 elbows.
• When the horizontal vent run exceeds 5 ft. (1.5 m), support the vent run at 3 ft. (0.9 m) intervals
with overhead hangers.
Diameter Max. No. of Elbows
54 in. (102 mm)
Max. V cal and Horizontal (Total) Vent Length
100 (30.5 m )
*For each elbow added, deduct 5 (1.5 m) from max. vent length.
No. of Elbows
0
1
100 (30.5 m)
Max. V cal or Horizontal Vent Length
2
95 (29.0 m)
5
90 (27.4 m)
75 (22.9 m)
Excludes vent terminators, termina elbows, or rain caps.

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Direct-vent and single vent illustrations
Horizontal Installation Vertical Installation
• The diagram above shows direct-vent installations. For single vent installation, connect a 4” elbow
directly on the intake vent collar instead of a straight pipe. See the instructions below for the detail.
• For details of the optional items, refer to the installation manual for each optional item.
• Regarding the clearances from the exhaust terminal to the air inlet or opening, refer to next few
pages.
• Follow all vent system manufacturer’s instructions and all local codes.
• Use 4” Category III/IV approved or Special BH, single or double wall stainless steel vent pipe.
<How to install single vent>
4” vent connection for direct vent installation
1. Connect 4” stainless steel vent
straight pipes directly on the ex-
haust/intake vent collar of the micro
boiler.
4” vent connection for a single vent installation
1. Connect 4” stainless steel vent
straight pipes directly on the exhaust
vent collar of the micro boiler.
2. Connect a 4” elbow directly on the
intake vent collar of the micro boiler.
Roof
Fire stop
Rain cap
Wall
Sidewall vent
Hanger
Hanger
Intake vent
collar (Female)
4" (102 mm)
stainless steel vent
straight pipe
Exhaust vent collar
of the Indoor
models (Female)
4" (102 mm)
stainless
steel vent
straight pipe
Exhaust vent collar
of the Indoor models
(Female)
4” (102 mm)
stainless steel vent
straight pipe
Intake vent
collar (Female)
4" (102 mm)elbow
with bird screen

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Vent termination clearances
*For clearances not specified in ANSI Z223.1/NFPZ 54 (US) or B149.1 (Canada), please use clear-
ances in accordance with local installation codes and the requirements of the gas supplier.
Canada U.S.A
Direct-
vent
Other thanDirect-vent and other
than Direct-vent Direct-vent
balcony 1 foot 1 foot 1 footAClearance above grade, veranda, porch, deck, or
3 feet 1 footB Clearance to window or door that may be opened
***
D
4 feet from below or
side opening. 1 foot
from above opening
C Clearance to permanently closed window
***
***E Clearance to unven ated soĸƚ
***F Clearance to outside corner
***G Clearance to inside corner
Vcal clearance to ven ated soĸƚ located above
the vent terminator within a horizontal distance
of 2 feet (61cm) from the center line of the
terminator
**3 feetHClearance to each side of center
line extended
above meter/regulator assembly
**
J
3 feetI Clearance to service regulator vent outlet
3 feet 1 foot
Clearance to non-mechanical air supply inlet to
building or the combus air inlet to any other
applica
6 feet
4 feet from below or
side opening. 1 foot
from above opening
3 feetK Clearance to mechanical air supply inlet 3 feet
*7 feetLClearance above paved sidewalk or paved driveway
located on public property 7 feet
*1 foot *M Clearance under veranda, porch deck, or balcony
V
INSIDE CORNER DETAIL
V
V
V
V
V
V
V
V
V
Gas meter / regulator
X
X
X
G
A
E
D
B
L
C
F
B
Vent terminal
Air supply inlet
Area where is not permi ed
B
B
BA
J
OPERABLE
CL
B
FIXED
OSED
H
M
K
OPERAB E
CL D
L
I
FIXED
OSE

20 | HYDROSHARK 199 WWW.HYDRO-SHARK.COM
For sidewall terminations
Please follow all local and national codes in regards to proper termination clear-
ances. In the absence of such codes, the clearances below can be used as
guidelines. Local codes supersede these guidelines.
For multiple sidewall exhaust terminations (e.g. Multi-unit
Systems), an exhaust termination must be at least 1 ft.
(305mm) away from another exhaust termination. An ex-
haust termination must also be at least 2 ft. (610mm) away
from an inside corner. (If the adjacent wall is less than 2 ft.
(610mm) of length, the minimum required distance away
from the inside corner will be equal to the length of that
adjacent wall.)
For multiple-unit, direct-vent sidewall terminations that
combine the intake and exhaust into a single penetration,
space each direct-vent termination at least 1 ft. (305mm)
away from each other, no matter the orientation. A direct
vent termination must also be at least 2 ft. (610mm) away
from an inside corner. (If the adjacent wall is less than 2 ft.
(610mm) of length, the minimum required distance away
from the inside corner will be equal to the length of that
adjacent wall.)
For direct-vent sidewall
terminations that use
two separate pene-
trations for the intake
and exhaust, keep the
termination clearances
shown in the diagrams
on the right.
<Case 1>
<Case 2>
Exhaust
termina
Inside
corner
1
(305 mm) min
min
2
1 (305 mm) (610 mm) min
Combined
intake and
exhaust Inside
termina corner
1
(305 mm) min
2
min
1 (305 mm) (610 mm) min
1 (305 mm) min
0.5
(159 mm) min
Exhaust
Intake
Exhaust
Intake
min
0.5
1 (305 mm)
(159 mm) min
0.5
min
(159 mm)
Exhaust
Intake
Exhaust
Intake