background image

www.desatech.com

121353-01F

24

AUTO

OFF

ON

Thermopile

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

When ignitor button is pressed, 

there  is  no  spark  at  ODS/
pilot

When ignitor button is pressed, 

there is spark at ODS/pilot but 
no ignition

POSSIBLE CAUSE

1. Ignitor  electrode  not  con-

nected to ignitor cable

2. Ignitor  cable  pinched  or 

wet

3. Piezo ignitor nut is loose

4. Broken ignitor cable

5. Bad piezo ignitor

6. Ignitor electrode broken
7. Ignitor electrode positioned 

wrong

1. Gas  supply  turned  off  or 

equipment  shutoff  valve 

closed

2. Control knob not in PILOT 

position

3. Control knob not pressed in 

while in PILOT position

4. Air  in  gas  lines  when  in

-

stalled

5. Depleted gas supply (pro-

pane/LP gas)

6. ODS/pilot is clogged

7. Gas regulator setting is not 

correct

REMEDY

1. Reconnect ignitor cable

2. Free ignitor cable if pinched 

by  any  metal  or  tubing. 

Keep ignitor cable dry

3. Tighten  nut  holding  piezo 

ignitor to base panel of log 
set.  Nut  is  located  behind 
base panel

4. Replace ignitor cable

5. Replace piezo ignitor

6. Replace pilot assembly
7. Replace pilot assembly

1. Turn on gas supply or open 

equipment shutoff valve

2. Turn control knob to PILOT 

position

3. Press in control knob while 

in PILOT position

4. Continue  holding  down 

control knob. Repeat ignit-
ing  operation  until  air  is 
removed

5.  Contact  local  propane/LP 

gas company

6. Clean  ODS/pilot  (see 

Cleaning and Maintenance, 

page 23) or replace ODS/
pilot assembly

7. Replace gas control

WIRING DIAGRAM

Note: For proper operation of optional acces-
sories, the wires from the switch to the control 
must be connected exactly as shown.

Summary of Contents for FLAME-MAX VYM27NR

Page 1: ...you cannot reach your gas supplier call the fire department Installation and service must be performed by a quali fied installer service agency or the gas supplier UNVENTED VENT FREE GAS LOG HEATER O...

Page 2: ...t prohib ited by local codes 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 Aftermarket Completion of sale...

Page 3: ...g fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting Due to high temperatures the appliance should be located out oftrafficandawayfromfurniture and drape...

Page 4: ...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 supplie...

Page 5: ...Application These multisided logs are designed to be equally beautiful when viewed from any angle They are designed specifically for use in see through peninsula and island fireboxes with multiple op...

Page 6: ...sidered a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them There are 4 optional controls that can be pur chased...

Page 7: ...pace can support _______ Btu Hr actual amount of Btu Hr used 40 000 33 000 73 000 Example 51 200 Btu Hr maximum the space can support 73 000 Btu Hr actual amount of Btu Hr used The space in this examp...

Page 8: ...attic will activate the power vent NOTICE Thisheater isintended for use as supplemental heat Use this heater along with your primary heating system Do not install this heater as your pri mary heat so...

Page 9: ...tural gas or propane LP gas but not both Gas type is indicated on the rat ingplate Fieldconversionisnot permitted INSTALLATION Continued INSTALLATION AND CLEARANCES Vent Free Operation Only WARNING Ma...

Page 10: ...for minimum clearances IMPORTANT If you cannot meet these mini mum clearances you must operate heater with chimney flue damper open Go to Install ing Damper Clamp Accessory for Vented Operation page 1...

Page 11: ...op of Fireplace Opening Underside of Mantel Shelf Mantel Shelf 12 A 18 20 22 24 All minimum distances are in inches 2 1 2 6 8 10 Figure 7 Minimum Mantel Clearances When Using Hood Minimum Noncombustib...

Page 12: ...nce on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 B If combustible materials are less than 14 to the fireplace you must install appliance at least 5 abov...

Page 13: ...ble material Make sure material is secure CAUTION Do not pick up heater base assembly by the burner This could damage heater Only handle base as sembly by grates IMPORTANT Make sure the heater burner...

Page 14: ...pplied Install the exter nalregulatorbetweentheheater and propane LP supply Figure 13 External Regulator With Vent Pointing Down Propane LP gas only Propane LP Supply Tank External Regulator with Vent...

Page 15: ...uipment Shutoff Valve With 1 8 NPT Tap Approved Flexible Gas Hose if allowed by local codes Pipe Tee Nipple Cap Joint Sediment Trap Natural Gas From Gas Meter 5 W C to 10 5 W C Pressure Propane LP Gas...

Page 16: ...iance main gas valve control valve and equip ment shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open end of gas pipe where equip me...

Page 17: ...ylog If so reposition logs according to the log installation instructions in this manual Flames contact ing logs will create soot It is very important to install the logs exactly as instructed Do not...

Page 18: ...whentheselectorswitch is in the ON position after the pilot is lit 4 Press in and turn control knob clockwise to the OFF position FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low the...

Page 19: ...release control knob If control knob does not pop out when released contact a qualified service person or gas supplier for repairs Note If pilot goes out repeat steps 4 through 8 9 Slightly push in an...

Page 20: ...ctor switch to the REMOTE position see Figure 25 Note The burner may light if hand held re mote was on when selector switch was last turned off You can now turn the burner on and off with the hand hel...

Page 21: ...held remote in the AUTO mode close to the fireplace The radiant heat from the fireplace will turn off the fireplace Ideally place the hand held remote in the center of the room facing towards the fir...

Page 22: ...rn off heater and let cool Remove blockage blocked burner flame holes will create soot Burner FLAME PATTERN Figure 30 shows a correct burner flame pat tern Figure 31 shows an incorrect burner flame pa...

Page 23: ...ollow the directions on the can If you don t follow directions on the can you could dam age the pilot assembly 1 Shut off unit including pilot Allow unit to cool for at least thirty minutes 2 Inspect...

Page 24: ...OT position 3 Control knob not pressed in while in PILOT position 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP gas 6 ODS pilot is clogged 7 Gas regulator setting is not correct...

Page 25: ...position 1 Manifold pressure is too low 2 Burner orifice clogged 1 Burner orifice is clogged or damaged 2 Damaged burner 3 Gas regulator defective REMEDY 1 Press in control knob fully 2 After ODS pilo...

Page 26: ...et cleaners etc may turn into white powder residue 1 Battery is not installed Bat tery power is low 1 Metal expanding while heating or contracting while cooling REMEDY 1 Check burner for dirt and debr...

Page 27: ...ee Checking Gas Con nections page 15 1 Open window and or door for ventilation 2 Contact local natural or propane LP gas company 3 Clean ODS pilot see Cleaning and Maintenance page 23 1 Locate and cor...

Page 28: ...ter how heater was malfunctioning purchase date Usually we will ask you to return the part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they can t supply origi...

Page 29: ...OL KIT HRC200 Allows the fireplace to be operated in a manu ally or thermostatically controlled mode You can turn the fireplace on and off without ever leaving the comfort of your easy chair A wall mo...

Page 30: ...w desatech com 121353 01F 30 Parts Models VYM27NR and VYM27PR 5 1a 1b 1c 9 3 2 13 12 15 14 18 17 12 12 16 21 12 19 6 8 7 4 11 12 20 10 9 23 22 Note Part numbers 22 and 23 are for natural gas model onl...

Page 31: ...ator to Pilot 1 099387 13 Pilot Tube Regulator to Pilot 1 10 103781 01 Gas Control Valve 1 103781 02 Gas Control Valve 1 11 104611 01 Lower Bracket 1 12 098304 01 Screw 8 x 0 38 7 13 Painted Base Asse...

Page 32: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

Reviews: