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VENT-FREE GAS HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
GWN6, GWP6, GWN10, GWP10, GWN10T, GWP10T, GWRN10,
GWRP10, MN10T, MP10T, VN1000BTA, VP1000BTA, VN10A,
VP10A, VN10TA, VP10TA, VN6D, VP5D, WMN10, WMP10
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
— WH
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TABLE OF CONTENTS Safety .................................................................. 2 Technical Service............................................... 17 Local Codes......................................................... 4 Service Hints ..................................................... 17 Unpacking............................................................ 4 Service Publications .......................................... 17 Product Identification ..................................
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SAFETY Continued Natural and Propane/LP Gas: Natural and Keep the appliance area clear propane/LP gases are fuel gases. Fuel gases and free from combustible ma- are odorless. An odor-making agent is added terials, gasoline and other flam- to fuel gases. The odor helps you detect a fuel gas leak. However, the odor added to fuel mable vapors and liquids. gas can fade. Fuel gas may be present even 1. This appliance is only for use with the type though no odor exists. of gas indicated on the
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SAFETY Continued 11. Do not use heater if any part has been 13. Operating heater above elevations of under water. Immediately call a qualified 4,500 feet could cause pilot outage. service technician to inspect the room 14. To prevent performance problems, do heater and to replace any part of the not use propane/LP fuel tank of less control system and any gas control which than 100 lbs. capacity. has been under water. 15. Provide adequate clearances around air 12. Turn off heater and let cool
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PRODUCT FEATURES SAFETY DEVICE quires no matches, batteries or other sources to light heater. This heater has a pilot with an Oxygen Deple- tion Sensing (ODS) safety shutoff system. The THERMOSTATIC HEAT CONTROL ODS/pilot is a required feature for vent-free (Thermostat Models Only) room heaters. The ODS/pilot shuts off the Thermostat models have a thermostat sens- heater if there is not enough fresh air. ing bulb and a control valve. This results in the PIEzO IGNITION SYSTEM greatest heater
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AIR FOR COMBUSTION AND VENTILATION Continued Example: 51,200 Btu/Hr (maximum the DETERMINING FRESH-AIR FLOW space can support) FOR FIREPLACE LOCATION 60,000 Btu/Hr (actual amount of Determining if You Have a Confined or Btu/Hr used) Unconfined Space The space in the example is a confined space Use this work sheet to determine if you have because the actual Btu/Hr used is more than the a confined or unconfined space. maximum Btu/Hr the space can support. You Space: Includes the room in
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AIR FOR COMBUSTION AND VENTILATION Continued and one within 12" of the floor. Connect these items directly to the outdoors or spaces open 12" to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Air for Ventilation Grills Combustion and Ventilation for required size Into Adjoining Room, Ventilation Option 2 of ventilation grills or ducts. Grills into Or Adjoining Remove IMPORTANT: Do not provide openings for Room, Door i
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INSTALLATION Continued LOCATING HEATER CAUTION: If you install the This heater is designed to be mounted on a wall. heater in a home garage • heater pilot and burner must WARNING: Maintain the be at least 18" above floor minimum clearances shown • locate heater where moving in Figure 4. If you can, provide vehicle will not hit it greater clearances from floor, ceiling and joining wall. CAUTION: This heater cre- ates warm air currents. These WARNING: Never install the currents move
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INSTALLATION Continued 3. Insert wall anchor (wings first) into hole. INSTALLING HEATER TO WALL Tap anchor flush to wall. Marking Screw Locations 4. For thin walls (1/2" or less), insert red key 1. Determine where you will locate heater. into wall anchor. Push red key to “pop” open anchor wings (see Figure 7). WARNING: Maintain mini- IMPORTANT: Do not hammer key! For mum clearances shown in Figure thick walls (over 1/2" thick) or solid walls, 5. If you can, provide greater do not pop o
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CONNECTING TO GAS SUPPLY INSTALLATION Continued WARNING: This appliance Removing Front Panel Of Heater requires a 3/8" NPT (National 1. Remove two screws near bottom corners Pipe Thread) inlet connection to of front panel. the pressure regulator. 2. Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4". 3. Pull bottom of front panel forward, then WARNING: A qualified service down. person must connect heater to gas supply. Follow all local codes. WARNING:
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INSTALLATION Continued 3/8" Pressure NPT Installation must include equipment shutoff Regulator Pipe valve, union and plugged 1/8" NPT tap. Locate Nipple NPT tap within reach for test gauge hook up. Heater NPT tap must be upstream from heater (see Cabinet Ground Figure 13). Joint IMPORTANT: Install an equipment shutoff Union Tee Joint valve in an accessible location. The equip- ment shutoff valve is for turning on or shutting Equipment Reducer Shutoff off the gas to the appliance.
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INSTALLATION Continued Test Pressures Equal To or Less Than CHECKING GAS CONNECTIONS 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Fig- WARNING: Test all gas piping ure 14). and connections, internal and 2. Pressurize supply piping system by either external to unit, for leaks after opening propane/LP supply tank valve installing or servicing. Correct for propane/LP gas or opening main gas all leaks at once. valve located on or near gas meter for natural gas, or using compres
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INSTALLATION Continued PRESSURE TESTING HEATER GAS 16, page 12). Apply a noncorrosive leak CONNECTIONS detection fluid to all joints. Bubbles form- 1. Open equipment shutoff valve (see Figure ing show a leak. 14, page 12). 5. Correct all leaks at once. 2. For natural gas open main gas valve locat- 6. Light heater (see Operation). Check all ed on or near gas meter. For propane/LP other internal joints for leaks. gas open propane/LP supply tank valve. 7. Turn off heater (see To Turn Off Gas to
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OPERATION Continued 8. Keep control knob pressed in for 30 sec- onds after lighting pilot. After 30 seconds, CAUTION: Do not try to ad- release control knob. just heating levels by using the • If control knob does not pop up when equipment shutoff valve. released, contact a qualified service person or gas supplier for repairs. TO TURN OFF GAS Note: If pilot goes out, repeat steps 4 thru TO APPLIANCE 7. Wait one (1) minute before lighting pilot 1. Turn control knob clockwise to the agai
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OPERATION Continued Slightly press in control knob and turn counter- MANUAL CONTROL INFRARED clockwise to the LOW or HIGH positions MODELS ONLY for double burner heater or ON position for TO SELECT single burner heater. HEATING LEVEL IMPORTANT: Release downward pressure while turning control knob. Control knob will WARNING: When running lock at the desired position. heater, set control knob at LOW Control Double Control Single Knobs Burners Knob Burner or HIGH locked positions for O
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INSPECTING BURNER Continued BURNER FLAME PATTERN WARNING: If yellow tipping INFRARED MODELS occurs, your heater could pro- Figure 25 shows a correct burner flame pat- duce increased levels of carbon tern. Figure 26 shows an incorrect burner flame pattern. monoxide. If burner flame pattern If burner flame pattern is incorrect, as shown shows yellow tipping, proceed in Figure 26 with the following instructions. • turn heater off (see To Turn Off Gas to Ap- pliance, page 14) NOTICE: Do not m
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CLEANING dirt, lint and pet hair. To clean these parts we WARNING: Turn off heater recommend using compressed air no greater than 30 PSI. Your local computer store, and let cool before cleaning. hardware store or home center may carry compressed air in a can. If using compressed CAUTION: You must keep con- air in a can, please follow the directions on the trol areas, burner and circulating can. If you don’t follow directions on the can, you could damage the pilot assembly. air passagew
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TROUBLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is 1. Ignitor electrode positioned 1. Replace pilot assembly pressed, there is no spark at wrong ODS/pilot 2. Ignitor electrode b
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TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully 1. Press in control knob fully goes out when control knob pressed in is released 2. Control knob not pressed in 2. After ODS/pilot lights, keep long enough control knob pressed in 30 seconds 3. Equipment shutoff valve not 3. Fully open equipment shut- fully open off valve 4. Thermocouple connection 4. Hand tighten until snug, loose at control valve then tighten 1/4 turn more 5
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TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Heater shuts off in use (ODS 1. Not enough fresh air is 1. Open window and/or door operates) available for ventilation 2. Low line pressure 2. Contact local natural or propane/LP gas company 3. ODS/pilot is partially 3. Clean ODS/pilot (see Clean- clogged ing, page 17) Slight smoke or odor during 1. Residues from manufactur- 1. Problem will stop after a few initial operation ing processes hours of operation Heater produces a whi
