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TM
UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
For more information, visit www.desatech.com
For more information, visit www.desatech.com
24" and 30"Remote-Ready Models:
VRL24NR, VRL24PR, VRL30NR,
VRL30PR, CSG3924NR, CSG3924PR
CTB3924NR, CTB3924PR
24" and 30" Thermostat Models:
VRL24NT, VRL24PT, VRL30NT,
VRL30PT, CSG3924NT, CSG3924PT
CTB3924NT, CTB3924PT
Remote-Ready Models Also Design-Certified As Vented
Decorative Appliances
WARNING: Improper installation, adju
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TABLE OF CONTENTS 2 SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ............................................................ 2 TROUBLESHOOTING .............................................................. 24 PRODUCT IDENTIFICATION ..................................................... 4 OPTIONAL POSITIONING OF OPTIONAL REMOTE CONTROL ACCESSORIES .................... 4 THERMOSTAT SENSING BULB ......................................... 27 LOCAL CODES ................................
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SAFETY INFORMATION 3 3 SAFETY INFORMATION Continued 9. This heater needs fresh, outside air ventilation to run properly. 1. This appliance is only for use with the type of gas indicated on This heater has an Oxygen Depletion Sensing (ODS) safety the rating plate. This appliance is not convertible for use with shutoff system. The ODS shuts down the heater if enough fresh other gases. air is not available. See Air for Combustion and Ventilation, 2. Do not place propane/LP supply tank(s) inside any
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W WARMER ARMER TEMP TEMP COOLER COOLER AUT UTO ON ON OFF OFF PRODUCT IDENTIFICATION 4 OPTIONAL REMOTE CONTROL ACCESSORIES LOCAL CODES UNPACKING PRODUCT IDENTIFICATION OPTIONAL REMOTE CONTROL ACCESSORIES Log Set (Varies According to Model) There are four optional remote controls that can be purchased separately for Remote-Ready Models Only: • wall switch • hand-held ON/OFF remote • wall thermostat • hand-held thermostat remote. Grate See Accessories, page 34. The wall thermostat or hand-held ther
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PRODUCT FEATURES 5 Operation 5 Safety Device Piezo Ignition System AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation PRODUCT FEATURES OPERATION PROVIDING ADEQUATE VENTILATION This heater is clean burning. It requires no outside venting. There is The following are excerpts from National Fuel Gas Code, ANSI no heat loss out a vent or up a chimney. Heat is generated by both Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation. realistic flames and glowing coals. This heat
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AIR FOR COMBUSTION AND VENTILATION Determining Fresh-Air Flow For Heater Location 6 AIR FOR COMBUSTION AND VENTILATION Continued The space in the above example is a confined space because the actual Btu/ DETERMINING FRESH-AIR FLOW FOR Hr used is more than the maximum Btu/Hr the space can support. You must HEATER LOCATION provide additional fresh air. Your options are as follows: Determining if You Have a Confined or A. Rework worksheet, adding the space of an adjoining room. If the extra space p
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AIR FOR COMBUSTION AND VENTILATION 7 Ventilation Air 7 AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR 12" Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must Ventilation provide two permanent openings: one within 12" of the ceiling and Ventilation Grills Grills Into Adjoining Room, one within 12" of the floor on the wall connecting the two spaces Into Adjoining Or Option 2
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INSTALLATION Check Gas Type 8 Installation and Clearances For Vent-Free Operation INSTALLATION NOTICE: This heater is intended for use as supple- WARNING: Never install the heater mental heat. Use this heater along with your primary • in a bedroom or bathroom unless installed as a heating system. Do not install this heater as your vented appliance, see page 11 (Remote-Ready Mod- primary heat source. If you have a central heating els Only) system, you may run system’s circulating blower • in a r
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INSTALLATION 9 Installation and Clearances For Vent-Free Operation (Cont.) 9 INSTALLATION Continued Carefully follow the instructions below. This will ensure safe If Using Mantel installation into a masonry, UL127-listed manufactured fireplace, You must have noncombustible material(s) above the fireplace or listed vent-free firebox. opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have Minimum Clearances For Side Co
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INSTALLATION Mantel Clearances 10 Floor Clearances INSTALLATION Continued Mantel Shelf MANTEL CLEARANCES 10" Underside of 8" Mantel Shelf In addition to meeting noncombustible material clearances, you 6" must also meet required clearances between fireplace opening and 1 2 /2" mantel shelf. If you do not meet the clearances listed below, you will need a hood. All minimum distances are Determining Minimum Mantel Clearance in inches Minimum Non- If you meet minimum clearance between mantel shelf a
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INSTALLATION 11 Installing Damper Clamp Accessory For Vented Operation 11 Installing Heater Base Assembly INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY INSTALLING HEATER BASE ASSEMBLY FOR VENTED OPERATION WARNING: You must secure this heater to fire- (Remote-Ready Models Only) place floor. If not, heater will move when you adjust Note: When used as a vented heater, appliance must be installed controls. Moving heater may cause a gas leak. only in a solid-fuel burning fireplace with a
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INSTALLATION Installing Heater Base Assembly (Cont.) 12 Connecting To Gas Supply INSTALLATION Continued 2. Locate two masonry screws in hardware package. CONNECTING TO GAS SUPPLY 3. Attach extension plates (left and right on 30" models only) to base by placing tabs into base slots. Use supplied screws (2) to WARNING: This appliance requires a 1/2" NPT secure extension plates to base (see Figure 12). (National Pipe Thread) inlet connection to the pres- sure regulator. 4. Place heater base in fir
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INSTALLATION 13 Connecting To Gas Supply (Cont.) 13 INSTALLATION Continued Installation must include an equipment shutoff valve, union, and CSA Design-Certified Equipment Shutoff Valve With 1/8" NPT Tap* plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge PROPANE/LP - From External hook up. NPT tap must be upstream from heater (see Figure 15 or Regulator 16, depending on your model). (11" W.C.** Approved Flexible IMPORTANT: Install equipment shutoff valve in an accessible to 14" W.C
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INSTALLATION Checking Gas Connections 14 INSTALLATION Continued CHECKING GAS CONNECTIONS Pressure Testing Heater Gas Connections 1. Open equipment shutoff valve (see Figure 17). WARNING: Test all gas piping and connections 2. Open main gas valve located on or near gas meter for natural for leaks after installing or servicing. Correct all gas or open propane/LP supply tank valve. leaks at once. 3. Make sure control knobs of heater are in the OFF position. 4. Check all joints from equipment shuto
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INSTALLATION 15 Installing Logs 15 INSTALLATION Continued INSTALLING LOGS WARNING: Failure to position the parts in accor- dance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. Log #3 CAUTION: After installation and periodically there- Log #2 after, check to ensure that no yellow flame comes in contact with any log. With the heater set to HI, check to see if flames contact any log. If so, reposition logs
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INSTALLATION Installing Logs (Cont.) 16 INSTALLATION Continued Models VRL24NR, VRL24PR, VRL30NR, VRL30PR, VRL24NT, VRL24PT, VRL30NT and VRL30PT Log #2 Log #3 1. Place log #1 (ember bed) onto base over log alignment screws to the left of front burner and behind middle burner. Log #1 will sit on top of front and middle burners (see Figure 24). 2. Place log #2 to right of log #1 and onto two log alignment screws as shown in Figure 25. Log #2 will wrap around right end of rear burner (see Figure 25)
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INSTALLATION 17 Attaching Grate To Base Assembly 17 OPERATING HEATER (THERMOSTAT-CONTROLLED MODELS) For Your Safety Read Before Lighting Lighting Instructions INSTALLATION OPERATING HEATER Continued THERMOSTAT-CONTROLLED MODELS ATTACHING GRATE TO BASE ASSEMBLY Locate the two slots in the front of the base assembly. Carefully slide FOR YOUR SAFETY READ the decorative grate into these slots (see Figure 28). BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explos
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OPERATING HEATER (THERMOSTAT-CONTROLLED MODELS) Lighting Instructions (Cont.) 18 To Turn Off Gas To Appliance OPERATING HEATER Continued Note: Home owners generally prefer to operate their heater Control Knob Ignitor Button with the chimney damper closed. This will put all the heat into Rear Burner Control Knob 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) ful
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OPERATING HEATER (THERMOSTAT-CONTROLLED MODELS) 19 Thermostat Control 19 Manual Lighting Procedure OPERATING HEATER (REMOTE-READY MODELS) For Your Safety Read Before Lighting Lighting Instructions OPERATING HEATER Continued THERMOSTAT CONTROL LIGHTING INSTRUCTIONS OPERATION The thermostat control knob can be set to any comfort level WARNING: between HI and LO. The thermostat will gradually modulate the • If fireplace has glass doors, never operate this heat output and flame height from higher to
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N O T O OPERATING HEATER (REMOTE-READY MODELS) Lighting Instructions (Cont.) 20 To Turn Off Gas To Appliance Manual Lighting Procedure OPERATING HEATER Continued 7. With control knob pressed in, press and release ignitor but- Pilot Burner Ignitor Electrode Ignitor ton. This will light pilot. The pilot is attached to the front Thermocouple Electrode burner. If needed, keep pressing ignitor button until pilot lights. Thermocouple Pilot Burner Note: If pilot does not stay lit, contact a qualified s
