Flagro FVNP-200RC Instruction Manual

OPERATING INSTRUCTIONS MANUAL
(Please retain for future reference)
For
FVNP-200RC INDIRECT FIRED SPACE HEATERS
CERTIFIED FOR USE IN CANADA AND U.S.A.
As per Standard ANSI Z83.7/CSA 2.14 2000 Gas Fired Construction Heaters / Unattended Type.
Issue date:
2003325
FLAGRO INDUSTRIES LIMITED
ST. CATHARINES, ONTARIO
CANADA

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GENERAL HAZARD WARNING:
FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED
WITH THIS HEATER, CAN RESULT IN DEATH, SERIOUS BODILY INJURY AND
PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE, EXPLOSION, BURN,
ASPHYXIATION, CARBON MONOXIDE POISONING, AND/OR ELECTRICAL
SHOCK.
ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS
SHOULD USE OR SERVICE THIS HEATER.
IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN
INSTRUCTIONS MANUAL, LABELS, ETC. CONTACT THE MANUFACTURER.
WARNING:
FIRE, BURN, INHALATION, AND EXPLOSION HAZARD. KEEP SOLID
COMBUSTIBLES, SUCH AS BUILDING MATERIALS, PAPER OR CARDBOARD, A
SAFE DISTANCE AWAY FROM THE HEATER AS RECOMMENDED BY THE
INSTRUCTIONS. NEVER USE THE HEATER IN SPACES WHICH DO OR MAY
CONTAIN VOLATILE OR AIRBORNE COMBUSTIBLES, OR PRODUCTS SUCH AS
GASOLINE, SOLVENTS, PAINT THINNER, DUST PARTICLES OR UNKNOWN
CHEMICALS.
WARNING:
NOT FOR HOME OR RECREATIONAL VEHICLE USE.
WARNING:
INTENDED USE IS PRIMARILY THE TEMPORARY HEATING OF BUILDINGS
UNDER CONSTRUCTION, ALTERATION, REPAIR OR EMERGENCIES ONLY.
.

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This heater is designed and approved for use as a
construction heater under Standard ANSI Z83.7/
CGA 2.14. 2000.
We cannot anticipate every use which may be made
of our heaters. CHECK WITH YOU LOCAL FIRE
SAFETY AUTHORITY IF YOU HAVE QUESTIONS
ABOUT APPLICATIONS.
Other standards govern the use of fuel gases and heat
producing products in specific applications. Your local
authority can advise you about these.
SPECIFICATIONS
Model …………………………………………………….…. FVNP-200RC
Input Range…………………………………….…... …….. 200,000 btuh
Fuel …………………………………………………………. Propane
Natural Gas
Manifold Pressure …………………………………………. 1.45” W.C. Propane
3.44” W.C. NG
Maximum Inlet Pressure ………………………………… 13” W.C. Propane
10” W.C. NG
Electrical …………………………………………………… 115V 15 AMP
Ignition ……………………………………………………… Direct Spark Ignition
…….……………………………………………...… Thermostat Control
Air Circulation ………………………………………………. 2600 cfm
Fuel Consumption ………………………………………..... 9.25 lbs/hr Propane
190 cfh NG
Approved …………………………………………………..... cETLus listed

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INSTALLATION:
The installation of this heater for use with natural gas shall conform with local codes or, in the
absence of codes, with the National Fuel Gas Code ANSI Z223.1/NFPA 54 and the Natural
Gas and Propane Installation Code, CSA B149.1-00. This heater must be installed by a
qualified gas technician, following local codes published by the authority having jurisdiction.
All installations performed in the state of Massachusetts must be completed by a qualified
plumber and gas fitter of the State of Massachusetts.
The installation of this heater for use with propane tank or cylinder shall conform with Local
codes or, in the absence of local codes, with the Standard for the Storage and Handling of
Liquefied Petroleum Gases, ANSI/NFPA 58 and the Natural Gas and Propane Installation
Code, CSA B149.
This heater must be located at least 10ft (3m) from any propane gas cylinder. This heater
shall not be directed toward any propane gas container within 20ft (6m).
CLEARANCE TO COMBUSTIBLES:
TOP FRONT SIDES REAR FLUE PIPE
3 ft 10 ft 1 ft 2 ft 3 ft
ELECTRICAL: WARNING
Electrical Grounding Instructions
This appliance is equipped with a three-prong (grounding) plug for your
protection against shock hazard and should be plugged directly into a
properly grounded three-prong receptacle.
115v supply must be available. Please note that the heater requires 15
amps for proper operation. Ensure appropriate gauge extension cord is
used.
• 12/3 AWG at 50 Feet
• 10/3 AWG at 100 Feet

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CONNECTING THE CYLINDER:
If cylinders are being use, no cylinders smaller than 100lb capacity shall be used. These
cylinders must supply a vapour withdrawal only.
1. All cylinder connections must be made using a wrench to tighten the POL fitting.
2. Be sure that the cylinder valve is in the closed position when connection or
disconnecting the cylinder.
3. A soap and water solution must be applied to all connections in order to leak check
the system.
The gas must be turned off at the propane supply cylinder(s) when the heater is not in use.
When the heater is to be stored indoors, the connection between the propane supply
cylinder(s) and the heater must be disconnected and the cylinders removed from the heater
and stored in accordance with Standard for the Storage and Handling or Liquefied Petroleum
Gases, ANSI/NFPA 58 and CSA B149.1, Natural Gas and Propane Installation Code.
PIPING: This heater must be installed by a qualified gas technician following local codes
published by the authority having jurisdiction. Sizing of supply piping must be
determined using the length of pipe run as well as total btuh rating of the
appliance(s). Appropriate piping tables must be used to determine size of
supply piping dependant on the length of run from source.
PRESSURES: MAXIMUM INLET PRESSURES: LP: 13.0 IN. WC.
NG: 10.0 IN. WC.
MINIMUM INLET PRESSURES: LP: 8.0 IN. WC.
NG: 7.0 IN. WC.
This heater must be supplied by pressures indicated on the approval
label. Over pressure may cause controls to fail.
DO NOT supply this unit with more than ½ psig (14.0 in. W.C.)
Note: A second stage regulator must be installed if the supply pressure
exceeds ½ psig.

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FUEL: This heater is a dual fuel unit and operates on propane & natural gas.
The manifold pressures are listed on the approval label.
You do not need to change any of the burner components; you however
need to make sure the fuel selector valve on the manifold is in the proper
fuel position.
HOSES: All hoses used to connect this heater of fuel supply must be Type 1
approved propane / natural gas hose assemblies
POWER SUPPLY INDICATOR LIGHT:
The power supply indicator light will help detect any faulty power supplied to the heater
such as; grounding issues, reverse polarity or missing/poor connections.
Warning Light Indications
Green Light Meets Power Requirements
Solid Red Light .. Reverse Polarity
Solid Red & Green Light Ground Issue
ATTENTION: IF SOLID RED GREEN IS INDICATED, MAKE CORRECTIONS TO
POWER SUPPLY BEFORE TURNING HEATER ON. FAILURE TO DO SO WILL VOID
ANY WARRANTY.
.

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FLUE PIPE: For outdoor applications the flue pipe connection must terminate with a
vertical run at least 2 ft long with a rain cap.
For indoor installations the venting must consist of a minimum 2 ft
vertical run to a maximum of 20 ft total vent length. See diagram below
for horizontal vent installation.
The vent outlet on the heater is 6” diameter. Certified venting must be
used at all times. Vent cap should be installed in situations where
downdrafts occur. All venting must correspond with CSA B149 standard
or in its absence, local codes.
FV SERIES CONSTRUCTION HEATER – VENTING REQUIREMENTS
HORIZONTAL FLUE RUN - RISE RATIO 1:10
VERTICAL FLUE RUN
D
A
FLUE OUTLET OF HEATER
FLUE OUTLET OF HEATER
C
B
B
EXTERIOR WALL
1. VERTICAL FLUE TERMINATIONS
2. HORIZONTAL FLUE TERMINATIONS
A - VENT TERMINATION MUST BE A MINIMUM OF 2FT HIGHER THAN ANY POINT
WITHIN 10FT.
B - MAXIMUM HORIZONTAL RUN IS 30FT.
NOTE: 90deg ELBOW = 10ft HORIZONTAL VENT ALLOWANCE
45deg ELBOW = 5ft HORIZONTAL VENT ALLOWANCE

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C - VENT TERMINATION IN HORIZONTAL POSITION MUST BE MINIMUM 4ft FROM ANY
COMBUSTABLE SURFACE
D - EXTERIOR VERTICAL VENT TERMINATION MUST BE A MINIMUM OF 2ft.
NOTE: ALL VENT TERMINATIONS MUST HAVE A RAIN CAP INSTALLED AS PER
LOCAL CODE REQUIREMENTS.
OUTLET DUCTING:
Hitex heater duct with a minimum temperature handling of 300 deg F
including wire reinforcement to prevent collapsing. Heater is designed for
use with 1 x 12” (FV-HD12) or 1 x 16” (FV-HDG16) diameter ducting
equipped with pin lock or cuff & buckle provided on collar of ducting.
Ducting should be inspected periodically for tearing and/or wear marks.
Ducting should be stored in a dry area when not in use.
INLET DUCTING:
Ducting must be used on the return air inlet of heater. The heater is
designed for 12” inlet diameter ducting (FV-HD12) and is designed for
pin lock or cuff and buckle system
MAINTENANCE:
1. Every construction heater should be inspected before each use, and at least
annually by a qualified service person. Incorrect maintenance my result in
improper operation of the heater and serious injury could occur.
2. The hose assemblies shall be visually inspected prior to each use of the heater. If it is
evident there is excessive abrasion or wear, or the hose is cut, it must be replaced prior to
the heater being put into operation. The replacement hose assembly shall be that
specified by the manufacturer.
3. The appliance must be kept clear and free from combustible materials, gasoline and other
flammable vapors and liquids.
4. The flow of combustion and ventilation air must not be obstructed. Be sure to check the
fan assembly and ensure that the motor and blade are operating properly.
5. Compressed air should be used to keep components free of dust and dirt build up.
Note: Do not use the compressed air inside any piping or regulator components.
6. Fan Limit Switch (Part# FV-407A) should be replaced if the fan motor does not shut off
after the heat exchanger has cooled down.
7. High Limit Switches (Part# FV-406 & FV-437) should be checked each season. These
limit switches will ensure the burner shuts down if the temperature exceeds 250°F at the
outlet.
8. Heat Exchanger should be cleaned if smokey conditions continue even after the air
adjustments on the burner are made.

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START UP INSTRUCTIONS:
1. Position heater properly on a level surface.
2. Be sure the toggle switch is in the ‘OFF” position.
3. Connect the fuel supplier to heater (leak test all connections) Refer to chart #1 for
hose sizing.
4. Ensure the fuel selector valve is in the proper position. (LP or NG)
5. Ensure burner “air gate” is properly set at 3.5
6. Ensure electrical cord is grounded & plugged into a 120V 15 amp outlet. Verify
cord size (12/3AWG at 50 ft & 10/3AWG at 100ft).
7. The power indicator light on the control box will engage, if green light illuminates,
you have proper power supply. If not, refer to sticker on heater to verify warning
problem. Correct power supply problem before operating heater.
8. Move toggle switch to “MANUAL” position for manual control.
9. Move toggle switch to “THERMOSTAT” position for thermostat control. Plug in
thermostat.
10. Once the burner has started, you will need to verify and set manifold pressure. See
rating plate for manifold pressure
11. Use a manometer to verify manifold pressure is being achieved. If needed, adjust
manifold pressure by adjusting the set screw on the RV52 regulator. (small grey
appliance regulator on the manifold, rated at ½ PSI)
Please Note:
1. If using Thermostat on unit, unit must be started in Thermostat position.
2. When changing between manual and thermostat operation, the heater must be left in
the “OFF” position for 30 seconds to prevent the burner from locking out.
3. When using a generator for electrical supply, make sure the generator is properly
grounded and generator is at a 60Hz frequency.
4. In the event that a generator is being used and the generator runs out of fuel, make
sure the heater switch is in the “OFF” position before restarting generator, failure to do
so may damage heater.

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TO SHUT DOWN:
1. Close main gas supply valve while heater is operating.
2. Move toggle switch to “OFF” position. The main fan will run until the heater
exchanger cools down. Do not disconnect power supply until the heat exchanger
cools down.
3. Disconnect fuel supply from heater.
NOTE: Fan will continue to operate after the burner shuts down. Once the unit cools
down, the fan will stop.
IF HEATER FAILS TO START:
1. Press manual reset button at rear of burner.
2. Check gas pressure supply. Supply and manifold pressure must follow those on
rating plate.
3. Ensure proper power supply and extension cord is being used.
4. If heater fails to ignite after 3 attempts, call your supplier for service.
SAFE OPERATION PRECAUTIONS:
1. For use with propane or natural gas only. See approval label.
2. Use toggle switch to shut down the heater. Do not try to shut down the heater by
unplugging the electrical cord.
3. Do not plug anything other that the thermostat into the “Thermostat” plug.
4. Follow electrical requirements shown on rating plate and/or Electrical requirements
section of this manual.
5. Before removing any guards or performing any maintenance, be sure that the main
power supply is disconnected.

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COMBUSTION AIR ADJUSTMENTS:
NOTE: Proper combustion air adjustment must be achieved using a certified
combustion analyzer to ensure complete combustion.
The air adjustment should be made to achieve 10% CO
2
on natural gas and
12% CO
2
on propane.
SETTING THE AIR ADJUSTMENT PLATE
A) Regulation of the combustion air flow is made by adjustment of the manual AIR
ADJUSTMENT PLATE (1) after loosening the FIXING SCREWS (2 and 3). The initial
setting of the air adjustment plate should be made according to Column 5 in the Burner
Set-up Chart.
B) The proper number on the manual AIR ADJUSTMENT PLATE (1) should line up with
the SETTING INDICATOR (4) on the fan housing cover. Once set, the air adjustment
plate should be secured in place by tightening SCREWS 2 and 3.
C) The final position of the air adjustment plate will vary on each installation. Use in-
struments to establish the proper settings for maximum CO
2
.
NOTE: Variations in flue gas, CO
2
and temperature readings may be experienced when
the burner cover is put in place. Therefore, the burner cover must be in place when
making the final combustion instrument readings, to ensure proper test results.
BURNER SET-UP CHART
1 2 3 4
FIRING RATE
(BTUH) ORIFICE- HEAD SETTING
AIR DAMPER
SETTING
200,000 NG
200,000 LP
PART #
FVN-226 5 4.0 NG
3.5 LP

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TEMPERATURE FEELER GAUGE ADJUSTMENT
(ATTACHED TO FAN SWITCH)
The temperature feeler gauge is required to be always touching the heater exchanger.
The temperature feeler gauge controls the air flow over the fan switch, which eliminates any
unnecessary fan cycling. The temperature feeler gauge can be adjusted for different outside
temperatures, by rotating the location of the temperature feeler gauge holes. This will
provide maximum performance of the unit in different applications.
If supply air is warm (-5°C, indoor application):
Turn the temperature feeler gauge so that the holes are parallel with the heat exchanger.
This will help the fan switch to remain cool and not overheat. See following:
If supply air is cold (under -5°C):
Turn the temperature feeler gauge so that the holes are closed off as the air goes over the
heat exchanger. This will reduce fan cycling and the unit from shutting down.
See following:
In extreme cold conditions, cover the holes on the temperature feeler gauge using foil tape.
Ensure that the temperature feeler gauge is readjusted for warmer weather conditions.
Failure to do so may result in burning out fan switches – not covered under warranty.

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Model 200 A B C F G *G1 H
Inches 9 3/16 10 11/16 6 11/16 11 5/8 3 15/16 10 3 9/16
mm 233 272 35 295 85 255 91
*G1 is for LBT version
Gasket thickness is 4 millimeters

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ELECTRODE AND FLAME PROBE ADJUSTMENTS
IMPORTANT: Do not turn the ignition electrode. Leave it as shown in the drawing. If
the ignition electrode is put near the ionization probe, the amplifier of the
control box may be damaged.
TYPICAL GAS TRAIN LAYOUT
FIELD SUPPLIED RIELLO SUPPLIED
GAS TRAIN LEGEND

GAS SUPPLY & FLOW DIRECTION
OF GAS

GAS APPLIANCE PRESSURE
REGULATOR

AS SUPPLY MAIN SHUTOFF MANUAL
VALVE (FIELD SUPPLIED

SAFETY SHUTOFF GAS VALVE
(VS) 24V OR 120V SUPPLIED)
OPERATED

GAS SUPPLY PRESSURE TEST
POINT (FIELD SUPPLIED)

MAIN GAS VALVE (V1) 24V OR 120V
OPERATED SINGLE STAGE

GAS TRAIN PIPE DIAMETER SIZE(S):
BURNER G200 1/2" NPT

GAS BURNER MANIFOLD TEST POINT

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