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L
I
P
F
F
O
HI
LO
UNVENTED (VENT-FREE)
GAS LOG HEATER
TM
OWNER’S OPERATION AND
INSTALLATION MANUAL
For more information, visit www.desatech.com
For more information, visit www.desatech.com
®
FLAME-MAX
Multi-Sided
Log Design
VYM27NR/PR
FVFM27NR/PR
Patent Pending
Remote Control
Ready Model
Also Design-Certified As A Vented Decorative Appliance
WARNING: Improper installation, ad-
WARNING: If the information in this manual
justment, alteration, service, or main-
is not followed exactly, a fire or ex
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TABLE OF CONTENTS SAFETY INFORMATION 2 TABLE OF CONTENTS TROUBLESHOOTING .............................................................. 18 SAFETY INFORMATION ............................................................ 2 PRODUCT IDENTIFICATION ..................................................... 3 WIRING DIAGRAM ................................................................... 21 SPECIFICATIONS .................................................................... 21 LOCAL CODES ...............
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WARMER TEMP COOLER AUTO ON OFF SAFETY INFORMATION 3 PRODUCT IDENTIFICATION 3 SAFETY INFORMATION Continued 12. Do not run heater Keep the appliance area clear and free from combus- • where flammable liquids or vapors are used or stored tible materials, gasoline, and other flammable vapors • under dusty conditions and liquids. 13. Do not use this heater to cook food or burn paper or other objects. 1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance
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LOCAL CODES 4 UNPACKING PRODUCT FEATURES REMOTE CONTROL ACCESSORIES AIR FOR COMBUSTION AND VENTILATION LOCAL CODES Install and use heater with care. Follow all local codes. In the SAFETY PILOT absence of local codes, use the latest edition of The National Fuel This heater has a pilot with an Oxygen Depletion Sensing (ODS) Gas Code, ANSI Z223.1/NFPA 54*. safety shutoff system. The ODS/pilot is a required feature for vent- *Available from: free room heaters. The ODS/pilot shuts off the heater if t
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AIR FOR COMBUSTION AND VENTILATION 5 Providing Adequate Ventilation 5 Determining Fresh-Air Flow For Heater Location AIR FOR COMBUSTION AND VENTILATION Continued PROVIDING ADEQUATE VENTILATION DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation. Determining if You Have a Confined or All spaces in homes fall into one of the three following ventilation Unconfined Space classifica
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AIR FOR COMBUSTION AND VENTILATION Determining Fresh-Air Flow For Heater Location (Cont.) 6 Ventilation AIR FOR COMBUSTION AND VENTILATION Continued 12" A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Ventilation Ventilation Grills Grills Inside Building below. Into Adjoining Room, Into Adjoining Or B. Vent room directly to the outdoors.
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INSTALLATION 7 Check Gas Type 7 Installation and Clearances INSTALLATION NOTICE: This heater is intended for use as supple- CAUTION: This heater creates warm air currents. mental heat. Use this heater along with your primary These currents move heat to wall surfaces next to heating system. Do not install this heater as your heater. Installing heater next to vinyl or cloth wall primary heat source. If you have a central heating coverings or operating heater where impurities (such system, you may
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INSTALLATION Installation and Clearances (Cont.) 8 INSTALLATION Continued If Using Mantel Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) A. Clearances from the side of the fireplace cabinet to any com- bustible material and wall should follow diagram in Figure 4. must be at least 1/2 inch thick. With sheet metal, you must have noncombustible
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INSTALLATION 9 Mantel Clearances 9 Floor Clearances INSTALLATION Continued MANTEL CLEARANCES FLOOR CLEARANCES A. If installing appliance on the floor level, you must maintain In addition to meeting noncombustible material clearances, you the minimum distance of 14" to combustibles (see Figure 8). must also meet required clearances between fireplace openings and mantel shelf on each side of the fireplace. If you do not meet the B. If combustible materials are less than 14" to the fireplace, you c
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INSTALLATION Installing Damper Clamp Accessory For Vented Operation 10 Installing Heater Base Assembly INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY INSTALLING HEATER BASE ASSEMBLY FOR VENTED OPERATION WARNING: Do not remove the data plates at- Note: When used as a vented heater, appliance must be installed tached to the heater base assembly. The data plates only in a solid-fuel burning fireplace with a working flue and contain important warranty and safety information. constructed o
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L I P F F O L O INSTALLATION 11 Installing Heater Base Assembly (Cont.) 11 Connecting To Gas Supply INSTALLATION Continued 4. Place logs in their proper position on heater base. See Install- * A CSA design-certified equipment shutoff valve with 1/8" NPT ing Logs, page 13. tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from 5. Center heater base and logs front-to-back and side-to-side in your dealer. See Accessories, p
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INSTALLATION Connecting To Gas Supply (Cont.) 12 Checking Gas Connections INSTALLATION Continued We recommend that you install sediment trap in supply line as Pressure Testing Gas Supply Piping System shown in Figure 14. Locate sediment trap where it is within reach for Test Pressures In Excess Of 1/2 PSIG (3.5 kPa) cleaning. Install in piping system between fuel supply and heater. 1. Disconnect appliance with its appliance main gas valve (con- Locate sediment trap where trapped matter is not li
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L L L I I I P P P F F F F F F O O O L L L O O O INSTALLATION 13 Checking Gas Connections (Cont.) 13 Installing Logs INSTALLATION Continued Equipment Shutoff Valve Rear Log (#2) Gas Meter Front Log (#1) Burner Port Control Valve Location Figure 16 - Checking Gas Joints for Natural Gas Propane/LP Equipment Shutoff Valve Grate Supply Tank Chassis Burner Figure 18 - Installing Front (#1) and Rear (#2) Logs Top Left Center Insert Log (#4) Log (#3) Control Valve Location Figure 17 - Checking Gas Joint
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O L I P F F O H I L OPERATING HEATER For Your Safety Read Before Lighting 14 Lighting Instructions OPERATING HEATER Note: Homeowners generally prefer to operate their heater FOR YOUR SAFETY READ with the chimney damper closed. This will put all the heat into BEFORE LIGHTING the room. However, there may be times you will desire the full flames of the HI heat setting but will find the heat output excessive. You can open the chimney damper (if you have one) WARNING: If you do not follow these inst
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OPERATING HEATER 15 LIghting Instructions (Cont.) 15 To Turn Off Gas To Appliance Manual Lighting Procedure Optional Remote Operation OPERATING HEATER Continued 8. Keep control knob pressed in for 30 seconds after lighting MANUAL LIGHTING PROCEDURE pilot. After 30 seconds, release control knob. • If control knob does not pop out when released, contact 1. Follow steps 1 through 6 under Lighting Instructions, page 14. a qualified service person or gas supplier for repairs. 2. Depress control knob
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N O T O H L I I L OPERATING HEATER Optional Remote Operation (Cont.) 16 INSPECTING BURNERS Pilot Flame Pattern Burner Flame Pattern OPERATING HEATER INSPECTING BURNERS Continued Check pilot flame pattern and burner flame patterns often. GHRCTA Series Operation PILOT FLAME PATTERN 2b. Press the AUTO/ON/OFF button on the hand-held remote Figure 27 shows a correct pilot flame pattern. Figure 28 shows an control (see Figure 26). The lights to the left of the button incorrect pilot flame pattern. The
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INSPECTING BURNERS 17 Burner Flame Pattern (Cont.) 17 CLEANING AND MAINTENANCE Cleaning Burner Injector Holder And Pilot Air Inlet Hole Logs Main Burner INSPECTING BURNERS Continued 2. Inspect burner, pilot, and primary air inlet holes on injector holder for dust and dirt (see Figure 31). BURNER PRIMARY AIR HOLES 3. Blow air through the ports/slots and holes in the burner. Air is drawn into the burner through the holes in the fitting at the 4. Check the injector holder located at the end of the
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TROUBLESHOOTING 18 TROUBLESHOOTING WARNING: Turn off heater CAUTION: Never use a wire, and let cool before servicing. needle, or similar object to clean Note: For additional help, visit DESA Only a qualified service person ODS/pilot. This can damage ODS/ International’s technical service web site should service and repair heater. pilot unit. at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pres
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TROUBLESHOOTING 19 19 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice clogged 1. Clean burner (see Cleaning and Mainte- nance, page 17) or replace burner orifice 2. Inlet gas pressure is too low 2. Contact local natural or propane/LP gas company 3. Thermopile leads disconnected or im- 3. Reconnect leads (see Wiring Diagram, properly connected page 21) 4. Burners will not come on in remote 4. Replace battery in transm
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TROUBLESHOOTING 20 TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • 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 neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigar
