Instruction/ maintenance manual of the product VMH26TNB Desa
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Save this manual for future reference. OWNER’S OPERA TION AND INST ALLA TION MANUAL VENT -FREE NA TURAL GAS COMP ACT CLASSIC HEAR TH ® FIREPLACE ® Shown with Optional Cabinet Mantel/Hearth Base Ac.
2 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® DANGER: Carbon monoxide poisoning may lead to death! SAFETY INFORMA TION Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea.
3 107029 OWNER’S MANUAL PRODUCT IDENTIFICA TION LOCAL CODES Install and use fireplace with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223.1/NFPA 54 . *Available from: American National Standards Institute, Inc.
4 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® WARNING: Always have branch support and screen in place before operating fireplace. This prevents excessive tempera- tures on fireplace surfaces.
5 107029 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in.
6 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® AIR FOR COMBUSTION AND VENTILA TION Continued WARNING: If the area in which the heater may be operated is smaller than that defined as an unconf.
7 107029 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Continued Figure 6 - Ventilation Air from Outdoors Shown with Optional Mantel Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two per- manent openings: one within 12" of the ceiling and one within 12" of the floor.
8 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® WARNING: A qualified ser- vice person must install fireplace. Follow all local codes. You can recess firebox into the wall. You can also position fireplace in the optional cabinet or corner mantels.
9 107029 OWNER’S MANUAL INST ALLA TION Continued 36 5 / 8 " 25 7 / 8 " 51 3 / 4 " 26 7 / 8 " Figure 10 - Rough Opening for Installing in Corner 2. If installing GA3450T blower acces- sory , do so at this time. Follow instruc- tions included with blower accessory .
10 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® 13" 16" 19" 21" 2 1 / 2 " 6" 8" 10" Note: All vertical measurements are from top of fireplace opening to bottom of mantel shelf. All measurements are in inches.
11 107029 OWNER’S MANUAL Assembling Brass Trim (Brass trim shipped with mantel) 1. Remove packaging from three remain- ing pieces of brass trim. 2. Locate two adjusting plates with set screws, and two shims in the hardware packet. 3. Align shim under adjusting plate as shown in Figure 15.
12 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® 4. Carefully disconnect green and white wires at their insulated connectors. 5. In top of the heater cabinet, locate the four mounting holes on the outer cas- ing. Align these four holes with those on the blower bracket assembly .
13 107029 OWNER’S MANUAL 3 2 1 For Built-In Installation WARNING: A licensed elec- trician must connect the wiring harness to electrical supply fol- lowing all local codes. Electri- cian must provide a clamp on the box cover to secure the wir- ing. Wiring should be routed through the bushing in the hole on the outer casing of heater.
14 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® CONNECTING TO GAS SUPPLY WARNING: A qualified ser- vice person must connect fire- place to gas supply. Follow all local codes. IMPORTANT: Check gas line pressure be- fore connecting fireplace to gas line.
15 107029 OWNER’S MANUAL INST ALLA TION Continued Figure 24 - Removing Branch Support From Fireplace CONNECTING EQUIPMENT SHUTOFF VALVE TO HEATER CONTROL Installation Items Needed • Phillips screwdriver • sealant (resistant to propane/LP gas, not provided) 1.
16 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® O N POSI T O PO Open Closed Equipment Shutoff Valve Figure 26 - Equipment Shutoff Valve Gas Meter Figure 27 - Checking Gas Joints Equipment Shutoff Valve INST ALLA TION Continued WARNING: Test all gas pip- ing and connections for leaks after installing or servicing.
17 107029 OWNER’S MANUAL OPERA TING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or loss of life. LIGHTING INSTRUCTIONS 1.
18 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® TO TURN OFF GAS TO APPLIANCE 1. Follow steps 1 thr ough 5 under Light- ing Instructions , page 17. 2. With control knob pr essed in, strik e match. Hold match to pilot until pi- lot lights. 3. Keep control knob pr essed in for 30 seconds after lighting pilot.
19 107029 OWNER’S MANUAL BURNER FLAME PATTERN Figure 33 shows a correct burner flame pattern. Figure 34 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows sporadic, irregular flame tip- ping. The flame should not be dark or have an orange/reddish tinge.
20 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® TROUBLESHOOTING POSSIBLE CAUSE 1. Ignitor cable pinched or wet 2. Ignitor electrode not connected to igni- tor cable 3. Broken ignitor cable 4. Bad piezo ignitor 5. Ignitor electrode broken 6. Ignitor electrode positioned wrong 1 .
21 107029 OWNER’S MANUAL OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smo.
22 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® 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.
23 107029 OWNER’S MANUAL REPLACEMENT PA R T S Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.
24 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® ILLUSTRA TED PAR TS BREAKDOWN VMH26TNB 23 29 40 32 36 38 13 7 8 33 40 11 10 4 7 30 1 3 2 9 17 19 6 22 31 21 41 26 42 39 39 16 15 18 24 28 5 34 .
25 107029 OWNER’S MANUAL P ARTS LIST VMH26TNB This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual.
26 107029 COMP ACT CLASSIC HEAR TH FIREPLACE VMH26TNB ® ACCESSORIES Purchase these fireplace accessories from your local dealer. If they cannot supply these accessories call DESA International’s Sales Department at 1-866-672-6040 for referral information.
27 107029 OWNER’S MANUAL NOTES _______________________________________________________________________________________________ _______________________________________________________________________.
2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com 107029-01 REV. C 04/02 LIMITED WARRANTY VENT-FREE NATURAL GAS COMPACT CLASSIC HEARTH ® FIREPLACE DESA International .
An important point after buying a device Desa VMH26TNB (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa VMH26TNB yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa VMH26TNB - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa VMH26TNB you will learn all the available features of the product, as well as information on its operation. The information that you get Desa VMH26TNB will certainly help you make a decision on the purchase.
If you already are a holder of Desa VMH26TNB, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa VMH26TNB.
However, one of the most important roles played by the user manual is to help in solving problems with Desa VMH26TNB. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa VMH26TNB along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
