Desa HRB3930/3924 - Manuals

Page 2 - Air; section on page 6

www.desatech.com 119426-01A 2 SAFETy INFORMATION TAbLE OF CONTENTS Safety Information ............................................... 2Product Identification ........................................... 5Local Codes......................................................... 5Optional Remote Control Acc...

Page 3 - Carbon Monoxide Poisoning:; Early signs of carbon; Get; people are more affected by carbon monoxide than; SAFETy INFORMATION; Continued

www.desatech.com 119426-01A 3 WARNING: This product con- tains and/or generates chemicals known to the state of California to cause cancer or birth defects or other reproductive harm. IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, op- erate or service this fi...

Page 4 - • do not try to light any appliance; UNPACkING; CAUTION: Do not remove the

www.desatech.com 119426-01A 4 SAFETy INFORMATION Continued 1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases. 2. Do not place propane/LP supply tank(s) in - side any structure. Locate propane/LP supply tan...

Page 5 - OPERATION; est edition of; State of Massachusetts:; bedroom and bathroom installation in the

www.desatech.com 119426-01A 5 PRODUCT IDENTIFICATION Figure 1 - Product Identification Base Assembly Control Knob Ignitor Model VUL Series Logs Control Knob Base Assembly Ignitor Rear Burner Flame Adjustment Knob Remote Control (Optional) OPTIONAL REMOTE CONTROL ACCESSORIES There are four optional r...

Page 6 - National Fuel; Unusually Tight Construction; Ventilation Air From Outdoors; Confined and Unconfined Space; rating of all appliances installed in that space and

www.desatech.com 119426-01A 6 AIR FOR COMbUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construc- tion unless provisions are provid- ed for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air ...

Page 7 - Vented gas heater; National Fuel Gas Code,; VENTILATION AIR; Ventilation Air From Inside Building; National Fuel Gas

www.desatech.com 119426-01A 7 AIR FOR COMbUSTION AND VENTILATION Continued Space: Includes the room in which you will install fireplace plus any adjoining rooms with doorless pas - sageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Lengt...

Page 8 - Ventilation Air From Outdoors; Section 5.3, Air for Combustion and Ventilation; INSTALLATION

www.desatech.com 119426-01A 8 AIR FOR COMbUSTION AND VENTILATION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items d...

Page 9 - CHECK GAS TYPE; Figure 4 - Minimum Clearance for

www.desatech.com 119426-01A 9 MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size 18", 24", 30" Side Wall 16" Ceiling 42" Floor 5" LOG SIZING REQUIREMENTS Minimum Firebox Size Log Front Rear* Size Height Depth Width Width 18" 17" 14" 20" 14" 24&#...

Page 10 - Installing Damper; If Using Mantel; Installing Damper Clamp; Requirements for; Accessories; MANTEL CLEARANCES; Determining Minimum Mantel Clearance

www.desatech.com 119426-01A 10 INSTALLATION Continued NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed. Go to Installing D...

Page 11 - FLOOR CLEARANCES; A. If installing appliance on the floor level, you

www.desatech.com 119426-01A 11 INSTALLATION Continued NOTICE: Surface temperatures of adjacent walls and mantels be- come hot during operation. Walls and mantels above the firebox may become hot to the touch. If installed properly, these tem- peratures meet the requirement of the national product st...

Page 12 - see; Manufactured Fireplace

www.desatech.com 119426-01A 12 INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented heater, appliance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material. If your heater is a manu...

Page 13 - Optional Positioning Of Thermostat; Installation Items Needed; Connecting To Gas

www.desatech.com 119426-01A 13 INSTALLATION Continued IMPORTANT: Make sure the heater burners are level. If heater is not level, heater will not work properly. For thermostat models, avoid damage to thermostat bulb. Avoid nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in mounting...

Page 14 - CONNECTING TO GAS SUPPLY; • sediment trap

www.desatech.com 119426-01A 14 CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes. CAUTION: Never connect propane/L...

Page 15 - Figure 15 - Gas Connection; NATURAL

www.desatech.com 119426-01A 15 Pipe Cap Tee Nipple Joint INSTALLATION Continued Installation must include an equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figures 15 or 16, depending on your ...

Page 16 - CHECKING GAS CONNECTIONS; Connecting to Gas Supply; Operating Heater

www.desatech.com 119426-01A 16 CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detec- tion fluid t...

Page 17 - Gas Meter; Installing Remote Receiver; WARNING: Turn off heater; Bracket

www.desatech.com 119426-01A 17 INSTALLATION Continued Figure 18 - Checking Gas Joints (Propane/LP Only) Thermostat Gas Valve or Control Valve Location Propane/LP Supply Tank Equipment Shutoff Valve Gas Meter Figure 19 - Checking Gas Joints (Natural Gas Only) Thermostat Gas Valve or Control Valve Loc...

Page 18 - INSTALLING LOGS; tion the parts in accordance; VUL Model Logs Only; Figure 24 - Installing Battery in Hand-Held; ing Heater Base Assembly; Installing 9-Volt Battery in Receiver; Remote Control Unit

www.desatech.com 119426-01A 18 INSTALLING LOGS WARNING: Failure to posi- tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. Each log is marked with a number. These numbers will help yo...

Page 19 - Rear Log; CRB and HRB Model Logs Only; Figure 27 - Installing CRB and HRB Model

www.desatech.com 119426-01A 19 INSTALLATION Continued Rear Log Grate Prongs Figure 25 - Installing VUL Model Log Sets Note: Your appliance may vary from model shown but log placement will be the same. Bottom Log Base Assembly Front Right Log Front Left Log 6. Place middle left log over front left an...

Page 20 - OPERATING HEATER; THERMOSTAT-CONTROLLED

www.desatech.com 119426-01A 20 OPERATING HEATER THERMOSTAT-CONTROLLED 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...

Page 21 - Manual Lighting Procedure; just heating levels by using the; Figure 28 - Control Knob and Ignitor; Shutting Off Heater; Lighting

www.desatech.com 119426-01A 21 5. Turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 28). Note: You may be running this heater for the first time after hooking up to gas sup- ply. If so, the control knob may need to be pressed in for 30 s...

Page 23 - Manual Lighting Procedure,; Figure 30 - Control Knob and Ignitor; TO TURN OFF GAS; Pilot Burner

www.desatech.com 119426-01A 23 5. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information, column 1, page 22. If you don’t smell gas, go to the next step. 6. Press in and turn control knob counter- clockwi...

Page 24 - MANUAL LIGHTING; REMOTE OPERATION; NOTICE: You must light the pilot; TO LOCK; Control Unit

www.desatech.com 119426-01A 24 OPERATING HEATER Continued MANUAL LIGHTING PROCEDURE 1. Follow steps 1 through 6 under Lighting Instructions , pages 22 and 23. 2. Depress control knob and light pilot with match. 3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, re...

Page 25 - INSPECTING bURNERS; PILOT FLAME PATTERN; To Turn Off Gas to Appli-

www.desatech.com 119426-01A 25 Manual Mode 1. Press the POWER and LOCK buttons together to turn on the hand-held remote control. 2. Press the MANU button to turn on the fireplace. 3. Press the POWER and LOCK buttons together to turn off the fireplace. Auto (Thermostatic) Mode 1. Press the POWER and ...

Page 26 - FRONT BURNER FLAME PATTERN; Figure 38 - Correct Front Burner Flame; CLEANING AND

www.desatech.com 119426-01A 26 FRONT BURNER FLAME PATTERN Figure 38 shows correct front burner flame pat - tern. Figure 39 shows incorrect front burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of blue flame. WARNING: If yellow tipping occurs, your heater could pr...

Page 27 - LOGS; ing Logs; MAIN BURNER; Figure 40 - Injector Holder On Outlet; WIRING DIAGRAM

www.desatech.com 119426-01A 27 4. Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint or pet hair with a soft cloth or vacuum cleaner nozzle. 5. Blow air into the primary air holes on the injector holder. 6. In case any large clumps o...

Page 28 - TROUbLESHOOTING; WARNING: Turn off heater and let cool before servicing. Only a; POSSIBLE CAUSE; Cleaning; OBSERVED PROBLEM

www.desatech.com 119426-01A 28 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 i...

Page 30 - cold; REMEDY; initial operation

www.desatech.com 119426-01A 30 POSSIBLE CAUSE 1. Residues from manufacturing processes and logs curing 1. Turning control knob to HI position when burners are cold 2. Air in gas line 3. Air passageways on heater blocked 4. Dirty or partially clogged burner orifice(s) 1. When heated, vapors from furn...

Page 31 - PORTANT; control; odors

www.desatech.com 119426-01A 31 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. Fol- low the gas s...

Page 32 - Capillary

www.desatech.com 119426-01A 32 OPTIONAL POSITIONING OF THERMOSTAT SENSING bULb (Thermostat-Controlled Models Only) FOR MASONRY AND FACTORY-BUILT METAL FIREPLACE If your log set cycles to pilot, but the room tem - perature drops to a lower than ideal comfort level before the log set comes back on, yo...

Page 33 - OPTIONAL POSITIONING OF THERMOSTAT SENSING bULb; SPECIFICATIONS; THERMOSTAT MODELS

www.desatech.com 119426-01A 33 Figure 48 - Positioning the Thermostat Sensing Bulb in the Vertical Position with the Capillary at the Bottom Capillary Thermostat Sensing Bulb Do Not Crimp Capillary Adhesive-backed Mounting Clip 4. The mounting clip must be a minimum of 3" from bottom of fireplac...

Page 34 - ILLUSTRATED PARTS bREAkDOWN AND PARTS LIST; listed under

www.desatech.com 119426-01A 34 1 2 3 4 5 6 KEYNO. PART NUMBER DESCRIPTION QTY VUL18NTVUL18PTVUL18NRVUL18PR VUL24NTVUL24PTVUL24NRVUL24PR VUL30NTVUL30PTVUL30NRVUL30PR 1 113621-01 113621-07 113621-13 Front Right Log (#1) 1 2 113621-02 113621-08 113621-14 Front Left Log (#1) 1 3 113621-03 113621-09 1136...

Page 35 - PART NUMBER

www.desatech.com 119426-01A 35 ILLUSTRATED PARTS bREAkDOWN AND PARTS LIST LOG MODELSCRB2618NR, CRB2618PR, CRB3624NR, CRB3624PR, CRB3630NR, CRB3630PR, HRB3624NT, HRB3624PT, HRB3624NR AND HRB3624PR This list contains replaceable parts used in your heater. When ordering parts, follow the instructions l...

Page 36 - ILLUSTRATED PARTS bREAkDOWN

www.desatech.com 119426-01A 36 ILLUSTRATED PARTS bREAkDOWN THERMOSTAT-CONTROLLED MODELSVUL18NT, VUL18PT, VUL24NT, VUL24PT, VUL30NT, VUL30PT, HRB3624NT AND HRB3624PT LPG 11 10 4 1 8 3 12 8 2 5 6 7 24 25 21 2 23 22 15 13 16 9 8 8 19 17 20 18 14

Page 37 - PARTS LIST; THERMOSTAT-CONTROLLED MODELS; DESCRIPTION; Ramp Burner Base; PARTS AVAILABLE NOT SHOWN; Lava Rock

www.desatech.com 119426-01A 37 PARTS LIST THERMOSTAT-CONTROLLED MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. KEY NO. PART NO. DESCRIPTION QTY. 1 ** Ramp Burner Base • • • • • • ...

Page 39 - REMOTE-READY VARIABLE CONTROL MODELS

www.desatech.com 119426-01A 39 PARTS LIST REMOTE-READY VARIABLE CONTROL MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. KEY NO. PART NO. DESCRIPTION QTY. 1 ** Ramp Burner Base • • ...

Page 41 - Ramp Burner Assembly

www.desatech.com 119426-01A 41 PARTS LIST REMOTE-READY VARIABLE CONTROL MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. KEY NO. PART NO. DESCRIPTION QTY. 1 ** Ramp Burner Assembly ...

Page 42 - SERVICE HINTS; When Gas Pressure Is Too Low; TECHNICAL SERVICE; PARTS UNDER WARRANTY; PARTS NOT UNDER WARRANTY; ready; ACCESSORIES; FIREPLACE HOOD

www.desatech.com 119426-01A 42 SERVICE HINTS When Gas Pressure Is Too Low • pilot will not stay lit • burners will have delayed ignition • heater will not produce specified heat • propane/LP gas supply may be low You may feel your gas pressure is too low. If so, con - tact your local propane/LP or n...

Page 43 - FIREBOXES

www.desatech.com 119426-01A 43 RECEIVER AND HAND-HELD THERMOSTAT REMOTE CONTROL KIT - HRC200 For all Remote-Ready Models. Allows the fire - place to be operated in a manually or thermostati - cally controlled mode. You can turn the fireplace on and off without ever leaving the comfort of your easy c...

Page 44 - NOT A UPC; WARRANTy INFORMATION; kEEP THIS WARRANTy; Model; LIMITED WARRANTy

2701 Industrial DriveP.O. Box 90004Bowling Green, KY 42102-9004www.desatech.com NOT A UPC WARRANTy INFORMATION kEEP THIS WARRANTy Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory.We reserve the right to amend these specifications at any time...