Desa VMH10RNC Owner'S Operation And Installation Manual Download Page 25

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112462-01B

25

OPERATING FIREPLACE

Continued

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Fireplace

1. Turn control knob clockwise 

Clockwise

  to the

OFF position.

2. Turn off all electric power to the appliance

(if applicable) if service is to be performed.

Shutting Off Burners Only (pilot stays lit)

Turn control knob clockwise 

Clockwise

  to the PI-

LOT position.

THERMOSTAT CONTROL

OPERATION

The thermostat used on this fireplace senses the
room temperature. At times the room may ex-
ceed the set temperature. If so, the burner will
shut off. The burner will cycle back on when room
temperature drops below the set temperature.
The control knob can be set to any heat level
between 1 and 5.

Note:

 The thermostat sensing bulb measures

the air near the fireplace cabinet. This may not
always agree with room temperature (depend-
ing on housing construction, installation loca-
tion, room size, open air temperatures, etc.).
Frequent use of your fireplace will let you de-
termine your own comfort levels.

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 5 under 

Lighting In-

structions

, page 24.

2. With control knob pressed in, strike match.

Hold match to pilot until pilot lights.

3. Keep control knob pressed in for 30 sec-

onds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8
under 

Lighting Instructions

, page 24.

OPERATING

BLOWER

This blower has three settings: ON, OFF, and
AUTO. In the ON position, the blower will op-
erate constantly. In the OFF position, the
blower will not operate. In the AUTO position,
the blower will start when the thermostat senses
a sufficient increase in firebox temperature.

Note:

 Your fireplace and thermostat blower

will not turn on and off at the same time. The
fireplace may run for several minutes before
the blower turns on. After the heater modulates

to the pilot position, the blower will continue to
run. The blower will shut off after the firebox
temperature decreases.

Note:

 It is safe to operate fireplace with blower

turned off. However, the blower helps distrib-
ute heated air from the fireplace.

Figure 39 - AUTO/OFF/ON Blower Switch

AUTO/OFF/
ON Switch

REMOTE-READY 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 must be

lighted by hand. When lighting the pilot,
follow these instructions exactly.

B. BEFORE LIGHTING smell all around the

appliance area for gas. Be sure to smell next
to the floor because some gas is heavier than
air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric 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 supplier, call

the fire department.

C. Use only your hand to push in or turn the

gas control knob. Never use tools. If the
knob will not push in or turn by hand, don’t
try to repair it, call a qualified service tech-
nician or gas supplier. Force or attempted
repair may result in a fire or explosion.

Summary of Contents for VMH10RNC

Page 1: ...ot touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier ca...

Page 2: ...n aftermarket permanently located manufactured mobile home where not prohibited by local codes This appliance is only for use with the type of gas indicated on the rating plate This appliance is not c...

Page 3: ...tainsand orgenerateschemicals known to the State of California to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owner s manualcarefullyandcompletely before trying to as...

Page 4: ...r furniture 10 This fireplace needs fresh air ventilation to run properly This fireplace has an Oxygen Deple tion Sensing ODS safety shutoff system The ODS shuts down the fireplace if not enough fresh...

Page 5: ...Y PILOT This fireplace has a pilot with an Oxygen Deple tion Sensing ODS safety shutoff system The ODS pilot is a required feature for vent free room fireplaces The ODS pilot shuts off the fireplace i...

Page 6: ...been completed 2 Cut two plastic straps to remove the log from the firebox cavity 3 An optional blower is available See Acces sories page 40 Install optional blower now Follow installation instruction...

Page 7: ...and windows may provide enough fresh air for combustion and ven tilation However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is defi...

Page 8: ...maximum Btu Hr the space can support You must provide ad ditional fresh air Your options are as follows A Rework worksheet adding the space of an adjoin ing room If the extra space provides an uncon f...

Page 9: ...ry heat source If you have a central heating system you may run system s circulating blower while using heater This will help circulate the heat throughout the house In the event of a power outage you...

Page 10: ...valve test gauge connection ground joint union sediment trap tee joint pipe wrench ACSAdesign certified equipment shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection P...

Page 11: ...ns included with blower accessory Note If not installing blower accessory you may wish to run electrical wiring to your fire place for future blower installation see Ac cessories page 40 Use only appr...

Page 12: ...stible materials should never over lap the firebox front facing INSTALLATION Continued Figure 9 Attaching Fireplace to Wall Studs Nailing Flanges Nails or Wood Screws Wall Studs WARNING Do not allow a...

Page 13: ...screws provided and attach fireplace base to wooden base There are holes provided on each side and floor of firebox see Figure 11 8 Place base assembly next to wall at installa tion location 9 Remove...

Page 14: ...upper louver see Fig ure 14 Save these screws 3 Pull upper louver straight out from the cabi net Be careful not to scratch the paint Set louver and screws aside 4 Open lower louver door by swinging do...

Page 15: ...e wire harness through the hole in left side of baffle Pull wire harness through lower opening of firebox see Figure 15 8 Insert the 4 wire harnesses into one of the round holes in the rear of the fan...

Page 16: ...nd in hardware kit into one of the holes on rear of fan switch cover The other hole is for a strain relief clamp not supplied to secure incoming electrical supply 3 Follow steps 3 through 7 in Install...

Page 17: ...erson must connect fire place to gas supply Follow all local codes WARNING Never connect natural gas fireplace to private non utility gas wells This gas is commonly known as well head gas ATTACHING WO...

Page 18: ...be upstream from heater see Figures 22 IMPORTANT Install equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Check...

Page 19: ...gas line into fireplace base area while replacing branch support Make sure the entire flexible gas line is in fireplace base area INSTALLATION Continued Figure 23 Attaching Flexible Gas Line to Equipm...

Page 20: ...id to all joints Bubbles forming show a leak 4 Correct all leaks at once INSTALLATION Continued Figure 24 Equipment Shutoff Valve ON POSITION OFF POSITION Open Closed Equipment Shutoff Valve Figure 25...

Page 21: ...isconnecting Wires From Control Valve Figure 28 Attaching Battery to Receiver Battery Clip 9 Volt Battery Receiver Terminal Wires Control Valve Jumper Wire White Wire to TH Terminal on Control Valve R...

Page 22: ...air con ditioning ducts 5 Gently remove the cover of the thermostat from the base Grasp the sides of the cover firmly and pull to separate from the base 6 Feed the electrical wires through the rectang...

Page 23: ...er see Figure 35 Do not allow log to contact flame If flame contacts log soot will be created 2 Reattach screen by placing the notches in the screen frame over the shoulder screws and pushing down INS...

Page 24: ...e control knob may need to be pressed in for 30 seconds or more This will allow air to bleed from the gas system If control knob does not pop out when released contact a qualified service per son or g...

Page 25: ...blower will not operate In the AUTO position the blower will start when the thermostat senses a sufficient increase in firebox temperature Note Your fireplace and thermostat blower will not turn on a...

Page 26: ...position Press in control knob for five 5 seconds see Figure 40 Note You may be running this fireplace for the first time after hooking up to gas supply If so the control knob may need to be pressed...

Page 27: ...Light ing Instructions on page 26 OPERATING FIREPLACE Continued 1 After lighting let pilot flame burn for about one minute Turn control knob to ON posi tion Slide the remote selector switch to the REM...

Page 28: ...HERMOSTAT SERIES MODEL GHRCTB The hand held remote can be operated using either the manual mode MANU or thermo static mode AUTO see Figure 45 To select Fahrenheit Centigrade mode display carefully pre...

Page 29: ...the thermocouple to cool When the thermocouple cools the fireplace will shut down If pilot flame pattern is incorrect as shown in Figure 48 turn fireplace off see To Turn Off Gas to Appli ance page 2...

Page 30: ...the pilot assembly 1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes 2 Inspect burner pilot and primary air inlet holes on injector holder for dust and dirt se...

Page 31: ...osition 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if...

Page 32: ...Manifold pressure is too low 2 Burner orifice is clogged 1 Burner orifice is clogged or damaged 2 Damaged burner 3 Gas regulator defective 4 Inlet gas pressure is too low REMEDY 1 Press in control kno...

Page 33: ...heated vapors from furniture polish wax carpet cleaners etc may turn into white powder residue 1 Not enough combustion ven tilation air REMEDY 1 Problem will stop after a few hours of operation 2 Che...

Page 34: ...ially clogged 1 Gas leak See Warning statement at top of page 2 Control valve defective 1 Foreign matter between con trol valve and burner 2 Gas leak See Warning statement at top of page REMEDY 1 Repl...

Page 35: ...bleshooting If so contact DESA Heating Products 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 DESA Heati...

Page 36: ...TAT CONTROLLED MODELS VMH10TPC VMH10TNC SHOWN EFS10TPA AND EFS10TNA 37 35 13 11 10 7 29 1 3 2 3 41 6 32 19 6 33 8 8 40 30 21 17 34 15 16 7 27 5 12 25 24 8 9 26 18 8 28 31 38 23 14 39 20 4 36 8 22 AAA...

Page 37: ...01 Electronic Ignitor Bracket 1 18 M11084 38 M11084 38 Screw 8 18 x 3 8 3 19 104335 01CK 104335 01CK Outer Shell Base 1 20 Firebox Floor 1 21 099415 04 099415 10 Gas Regulator 1 22 099123 01 099123 0...

Page 38: ...ODELS VMH10RPC VMH10RNC SHOWN EFS10RPA EFS10RNA TPTH TPTH TP TP TH TH 30 12 20 10 9 7 23 1 3 2 7 3 35 6 8 14 6 26 20 4 25 5 41 17 39 20 18 40 19 31 21 15 32 24 38 22 33 13 16 36 37 34 27 20 11 29 28 2...

Page 39: ...918 02 Regulator Pilot 1 18 098271 10 098271 10 Ignitor Cable 1 19 101004 13 101004 12 Injector 1 20 M11084 26 M11084 26 Screw Hex Head 10 16 x 3 8 36 21 108135 02 108135 02 Valve Bracket 2 22 103781...

Page 40: ...h edges of wall opening BLACK TRIM KIT GAB6094 Not Shown For all models Optional three sided black trim kit for custom and recessed installations when unit is on the floor Provides a finished appearan...

Page 41: ...r appliance ACCESSORIES Continued RECEIVER AND HAND HELD THERMOSTAT REMOTE CONTROL KIT GHRCTB For all Remote Ready Models Allows the fire place to be operated in a manually or thermostati cally contro...

Page 42: ...____________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________...

Page 43: ...____________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________...

Page 44: ...or DESA Heating Products who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty The fireplace MUST be installed by a qualified insta...

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