Wiring Diagram; Service Hints; Technical Service; Replacement Parts - Desa VM42P Owner's Operation And Installation Manual

IGNITOR
PILOT GAS
LINE
INCOMING
MAIN GAS
SUPPLY
PILOT SAFETY WIRE

SERVICE HINTS

When Gas Pressure Is Too Low
• pilot will not stay lit
• burner will have delayed ignition
• fireplace will not produce specified heat
• propane/LP gas supply may be low if using
propane/LP gas
If using propane/LP gas, you may feel your gas
pressure is too low. If so, contact your local pro-
pane/LP gas supplier.

TECHNICAL SERVICE

You may have further questions about installation,
operation or troubleshooting. If so, contact DESAʼs
Technical Service Department at 1-866-672-6040.
When calling please have your model and serial
numbers of your heater ready.
You can also visit DESAʼs Technical Services web
site at www.desatech.com.
22

WIRING DIAGRAM

PILOT
BURNER
THERMOPILE
www.desatech.com
REPLACE FACTORY WIRING WITH 105°C
EQUIVALENT OR HIGHER RATING
EXTERNAL WIRING USE ONLY CLASS 2
THERMOSTAT WIRE 18 GA. RED/WHITE
RED
WHITE
N.O. SW
TH
TP
MANUAL
DAMPER
TH/TP
SWITCH
WALL SWITCH
(SUPPLIED)

REPLACEMENT PARTS

Note: Use only original replacement parts. This will
protect your warranty coverage for parts replaced
under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If
they canʼt supply original replacement part(s)
call DESAʼs Technical Service Department at
1-866-672-6040 for referral information.
When calling DESA, have ready
• your name
• your address
• model and serial numbers of your fireplace
• how fireplace was malfunctioning
• type of gas used (propane/LP or natural gas)
• 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 canʼt supply original replacement part(s)
call DESA at 1-866-672-6040 for referral infor-
mation.
When calling DESA, have ready
• model number of your fireplace
• the replacement part number
DO NOT
CONNECT
TO 120V
N.C.SW
(VENT SAFETY
SHUTOFF SWITCH)
108795-01N