FMI GWRN18C Safety Information And Installation Manual Download

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125311-01A

TROUBLESHOOTING

Continued

OBSERvED PROBLEM

ODS/pilot lights but flame

goes out when control knob

is released

Burner does not light after

ODS/pilot is lit

Delayed ignition of burner

Burner backfiring during com

bustion

Burner plaque(s) does not

glow

Slight smoke or odor during

initial operation

Heater produces a clicking/

ticking noise just after burner

is lit or shut off

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep

control knob pressed in 30

seconds

3. Fully open equipment shut

off valve

4. A) Contact local natural or

propane/LP gas company

B) Clean ODS/pilot (see

Cleaning and Maintenance

page 18) or replace ODS/

pilot assembly

5. Hand tighten until snug,

then tighten 1/4 turn more

6. Replace pilot assembly

7. Replace control valve

1. Clean burner (see

Cleaning

and Maintenance

, page 18)

or replace burner orifice

2. Contact local natural or

propane/LP gas company

1. Contact local natural or

propane/LP gas company

2. Clean burner (see

Cleaning

and Maintenance

, page 18)

or replace burner orifice

1. Clean burner (see

Cleaning

and Maintenance

, page 18)

or replace burner orifice

2. Replace damaged burner

3. Replace gas regulator

1. Replace burner

2. Contact local natural or pro

pane/LP gas company

3. Turn control knob until it

locks at desired setting

1. Problem will stop after a few

hours of operation

1. This is normal with most heat

ers. If noise is excessive, con

tact qualified service person

POSSIBLE CAUSE

1. Control knob not fully

pressed in

2. Control knob not pressed in

long enough

3. Equipment shutoff valve not

fully open

4. Pilot flame not touching

thermocouple, which al

lows thermocouple to cool,

causing pilot flame to go

out. This problem could be

caused by one or both of

the following:

A) Low gas pressure

B) Dirty or partially clogged

ODS/pilot

5. Thermocouple connection

loose at control valve

6. Thermocouple damaged

7. Control valve damaged

1. Burner orifice clogged

2. Inlet gas pressure is too

low

1. Manifold pressure is too

low

2. Burner orifice clogged

1. Burner orifice is clogged or

damaged

2. Damaged burner

3. Gas regulator defective

1. Plaque damaged

2. Inlet gas pressure is too

low

3. Control knob set between

locked positions

1. Residues from manufactur

ing processes

1. Metal expanding while

heating or contracting while

cooling

Summary of Contents for GWRN18C

Page 1: ...e any phone in your building Immediatelycallyourgassupplierfromaneighbor 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 quali fied installer service agency or the gas supplier INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future reference UNVENTED VENT FRE...

Page 2: ... pregnant women people with heart or lung disease or anemia those under the influ ence of alcohol and those at high altitudes Safety TABLE OF CONTENTS Safety 2 Local Codes 4 Product Identification 4 Unpacking 4 Product Features 4 Air For Combustion and Ventilation 5 Installation 7 Operation 14 Inspecting Heater 17 Cleaning and Maintenance 17 Specifications 18 Troubleshooting 19 Parts 22 Accessorie...

Page 3: ...huts off do not relight until you provide fresh outside air If heater keeps shutting off have it serviced 9 Do not run heater where flammable liquids or vapors are used or stored under dusty conditions 10 Do not use heater if any part has been under water Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control whi...

Page 4: ... fitter in the Commonwealth of Massachusetts Sellers of unvented propane or natural gas fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit Vent free gas products are prohibited for bedroom and bathroom installation in the Commonwealth of Massachusetts Product Identification Unpacking 1 Remove heater from carton 2 Remove all protective packagi...

Page 5: ...nusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of un usually tight construction you must provide additional fresh air Unusually tight construction is defined as construction where a walls and ceilings exposed to the out side atmosphere have a continuous water vapor retarder with a rating of on...

Page 6: ...__ Btu Hr maximum can support ________ Btu Hr actual amount used Example 51 200 Btu Hr maximum the space can support 60 000 Btu Hr actual amount of Btu Hr used AIR FOR COMBUSTION AND VENTILATION Continued The space in the example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr the space can support You must provide additional fresh air Your options are as follows...

Page 7: ... your primary heat source WARNING A qualified ser vice person must install heater Follow all local codes WARNING This appliance is equipped for either natural gas or propane LP gas but not both Gas typeisindicatedontheratingplate Field conversion is not permitted CHECK GAS TYPE Use only the correct gas type natural or propane LP for your unit If your gas supply is not correct do not install heater...

Page 8: ...may discolor walls or cause odors Figure 4 Mounting Clearances As Viewed From Front of Heater Figure 5 Attaching Thermostat Sensing Bulb INSTALLATION Continued Minimum From Sides Of Heater 2 5 1 cm FLOOR CEILING 36 91 5 cm Minimum Minimum To Top Surface Of Carpeting Tile Or Other Combustible Material Left Side Right Side 10 25 4 cm 36 91 5 cm Clip Thermostat Sensing Bulb IMPORTANT Vent free heater...

Page 9: ...onry Decide which method better suits your needs Either method will provide a secure hold for the mounting bracket Marking Screw Locations 1 Tape mounting bracket to wall where heater will be located Make sure mount ing bracket is level WARNING Maintainminimum clearances shown in Figure 8 If youcan providegreaterclearanc es from floor and joining wall 2 Mark screw locations on wall see Figure 8 No...

Page 10: ...Bottom Mounting Screws 1 Locate two bottom mounting holes These holes are near bottom on back panel of heater see Figure 12 2 Mark screw locations on wall 3 Remove heater from mounting bracket 4 If installing bottom mounting screws into hollow or solid wall install wall anchors Follow steps 1 through 4 under Attaching To Wall Anchor Method If installing bottom mounting screw into wall stud drill h...

Page 11: ...tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 15 page 12 Mounting Base Feet to Floor 1 Remove front panel see Removing Front Panel of Heater page 9 2 Position heater with base feet in desired location Mark holes for drilling Remove heater with base 3 For carpeted floors make a small cut with a sharp knife at marked locations prior to drillin...

Page 12: ...vent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves Tee Pipe Cap Joint Nipple Tee Joint Reducer Bushing to 1 8 NPT 1 8 NPT Plug Tap Pressure Regulator Test Gauge Connection Heater Cabinet Sediment Trap 3 Min Natural Gas From Gas Meter 7 W C to 10 5 W C Pressure Propane LP From External Regulator 11 W C to 14 W C Pressure Regulator Bracket Ground Jo...

Page 13: ... meter for natural gas or using compressed air 3 Check all joints from gas meter for natural gas see Figure 17 or propane LP supply to equipment shutoff valve see Figure 18 Apply a noncorrosive leak detection fluid to all joints Bubbles forming show a leak 4 Correct all leaks at once Pressure Testing Heater Gas Connections 1 Open equipment shutoff valve see Figure 16 Figure 17 Checking Gas Joints ...

Page 14: ... for Thermostat Models Figure 19 Control Knob in the OFF Position for Manual Control Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low these instructions exactly a fire or explosion may result causing property damage per sonal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly B BEFORE ...

Page 15: ... the desired heating level The main burner should light Set control knob to any heat level between 1 and 5 see Figure 23 Figure 22 Burner Patterns for Manual Control Models Figure 23 Burner Patterns TO TURN OFF GAS TO APPLIANCE 1 Turn control knob clockwise to the OFF position 2 Turn off all electric power to the appliance if service is to be performed 3 Close equipment shutoff valve see Figure 16...

Page 16: ... WARNING Blower acces sory must be grounded Blower comes with a three prong grounding plug as shown in Figure 24 The plug is your protection against electrical shock Plug it into a standard three hole grounded outlet If cordneedsreplacing useonlya cordwithathree prong ground ing plug CAUTION Label all wires prior to disconnection when servicingcontrols Wiringerrors cancauseimproperanddanger ous op...

Page 17: ...shown in Figure 29 turn heater off see To Turn Off Gas to Ap pliance page 15 see Troubleshooting page 18 Cleaning and Maintenance Check pilot flame pattern and burner flame patterns often PILOT FLAME PATTERN Figure 26 shows a correct pilot flame pattern Figure 27 shows an incorrect pilot flame pat tern The incorrect pilot flame is not touching the thermocouple This will cause the thermocouple to c...

Page 18: ... Setting 6 W C Inlet Gas Pressure in of water Maximum 10 5 W C Minimum 7 W C GWRN30TC VSHRN30T Natural Gas Only 30 000 Btu h Pressure Regulator Setting 6 W C Inlet Gas Pressure in of water Maximum 10 5 W C Minimum 7 W C GWRN18C VSHRN18M Natural Gas Only 6 600 12 000 18 000 Btu h Pressure Regulator Setting 6 W C Inlet Gas Pressure in of water Maximum 10 5 W C Minimum 7 W C GWRN30C VSHRN30M Natural ...

Page 19: ... Gas regulator setting is not correct 1 Not enough combustion ventilation air OBSERVED PROBLEM When ignitor button is pressed in there is no spark at ODS pilot Whenignitorbuttonispressed in thereisasparkatODS Pilot but no ignition Moisture condensation no ticed on windows REMEDY 1 Replace pilot assembly 2 Replace pilot assembly 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal...

Page 20: ...ice 1 Clean burner see Cleaning and Maintenance page 18 or replace burner orifice 2 Replace damaged burner 3 Replace gas regulator 1 Replace burner 2 Contact local natural or pro pane LP gas company 3 Turn control knob until it locks at desired setting 1 Problem will stop after a few hours of operation 1 This is normal with most heat ers If noise is excessive con tact qualified service person POSS...

Page 21: ...eCleaning and Maintenance page 17 1 Ventilate room Stop using odor causing products while heater is running 2 Refill supply tank 3 Locate and correct all leaks see Checking Gas Connec tions page 12 1 Locate and correct all leaks see Checking Gas Connec tions page 12 2 Replace control valve 1 Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Checking Gas Connec tion...

Page 22: ...6C GWRn30C GWRP16TC GWRn18TC GWRP26TC GWRn30TC VSHRP16M VSHRP16T VSHRN18M VSHRN18T VSHRP26M VSHRP26T VSHRN30M and VSHRN30T 11 8 5 6 7 4 3 1 2 16 10 12 13 9 17 14 15 19 18 20 Replacement may vary from grill shown See page 24 See Pages 24 and 25 Actual part may vary from illustration ...

Page 23: ...Sheild 1 10 111421 01 Snap Bushing 1 11 107889 01 Base Feet 2 12 099415 18 Gas Regulator LP 1 099415 19 Gas Regulator NG 1 13 104819 02 Regulator Bracket 1 14 098522 24 Thermostat Gas Valve 1 15 102394 02 T stat Valve Mounting Bracket 1 16 103256 02 Inlet Tube 1 17 118721 03 Upper Baffle 1 118721 04 Upper Baffle 1 18 098462 01 Control Rod Assembly 1 19 098325 01 Roll Pin 1 20 098354 03 Control Kno...

Page 24: ...630 03 ODS Pilot NG 1 2 098200 03 Control Valve Bracket 1 3 105051 01 Pilot Tubing 1 4 099218 08 Burner 1 5 098508 01 Valve Retainer Nut 1 6 099056 24 Orifice Plaque A 1 2 099056 25 Orifice Plaque A 1 2 7 099056 01 Orifice Plaque B 1 099056 02 Orifice Plaque B 1 8 103844 01 Control Valve 1 9 103352 03 Tubing Valve to Plaque 1 10 103352 04 Tubing Valve to Plaque 1 11 107660 01 Tube Inlet 1 G W R P ...

Page 25: ...QTY 1 120630 02 ODS Pilot LP 1 120630 03 ODS Pilot NG 1 2 098200 03 Control Valve Bracket 1 3 105050 02 Pilot Tubing 1 4 099218 09 Burner 1 5 098508 01 Valve Retainer Nut 1 6 099056 24 Orifice Plaque A or C 2 099056 25 Orifice Plaque A or C 2 7 099056 01 Orifice Plaque B 1 099056 02 Orifice Plaque B 1 8 100747 01 Control Valve 1 9 107660 03 Inlet Tube 10 103844 01 Tubing Valve to Plaque 1 11 10335...

Page 26: ...218 08 Burner 1 5 099056 24 Orifice Plaque A 1 2 099056 25 Orifice Plaque A 1 2 6 099056 01 Orifice Plaque B 1 099056 02 Orifice Plaque B 1 G W R P 1 6 T C V S H R P 1 6 T G W R N 1 8 T C V S H R N 1 8 T KEY NO PART NO DESCRIPTION QTY 1 120630 02 ODS Pilot LP 1 120630 03 ODS Pilot NG 1 2 099387 3 Pilot Tubing 1 3 104818 04 Outlet Tubing Valve to Burner 1 4 099218 08 Burner 1 5 099056 24 Orifice Pl...

Page 27: ...overage for parts replaced under warranty Contact authorized dealers of this product If they can t supply original replacement part s call FMI PRODUCTS LLC at 1 866 328 4537 When calling have ready your name your address model and serial numbers of your heater how heater was malfunctioning type of gas used propane LP or natural gas purchase date Usually we will ask you to return the part to the fa...

Page 28: ...is product and or FMI PRODUCTS LLC who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty Travel handling transportation diagnostic material labor and incidental costs associated with warranty repairs unless expressly covered by this warranty are not reimbursable under this warranty and are the responsibility of the owner Excluded ...

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