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119426-01F

POSSIBLE CAUSE

1. Control knob not fully

pressed in

2. Control knob not pressed in

long enough

3. Safety interlock system has

been triggered

4. Equipment shutoff valve not

fully open

5. Pilot flame not touching

thermocouple, which allows
thermocouple to cool, caus

ing pilot flame to go out. This

problem could be caused by
one or both of the following:

A) Low gas pressure
B) Dirty or partially clogged

ODS/pilot

6. Thermocouple connection

loose at control valve

7. Thermocouple damaged
8. Control valve damaged

1. Inlet gas pressure is too

low

2. Burner orifice(s) clogged

3. Mislocated crossover tube
4. Remote selector in OFF

position (Remote-Ready
models only)

5. Wire disconnected from

gas control (Remote-Ready
models only)

1. Manifold pressure is too

low

2. Burner orifice(s) clogged

3. Mislocated crossover tube

1. Burner orifice is clogged or

damaged

2. Damaged burner
3. Gas regulator defective

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep

control knob pressed in 30
seconds

3. Wait one minute for safety

interlock system to reset.
Repeat ignition operation

4. Fully open equipment shut-

off valve

5. A) Contact local natural or

propane/LP gas company

B) Clean ODS/pilot (see

Cleaning and Maintenance

page 26) or replace ODS/
pilot assembly

6. Hand tighten until snug,

then tighten 1/4 turn more

7. Replace pilot assembly
8. Replace control valve

1. Contact local natural or

propane/LP gas company

2. C l e a n b u r n e r ( s ) ( s e e

Cleaning and Maintenance

page 26) or replace burner

orifice(s)

3. Contact qualified service

person

4. Put remote selector in ON

position

5. S e e

Wi r i n g D i a g r a m

page 27

1. Contact local natural or

propane/LP gas company

2. C l e a n b u r n e r ( s ) ( s e e

Cleaning and Maintenance

page 26) or replace burner

orifice(s)

3. Contact qualified service

person

1. Clean burner (see

Cleaning

and Maintenance

, page 26)

or replace burner orifice

2. Replace damaged burner
3. Replace gas regulator

OBSERVED PROBLEM

ODS/pilot lights but flame

goes out when control knob
is released

One or both burners do not
light after ODS/pilot is lit

Delayed ignition of one or
both burners

Burner backfiring during
combustion

TROUbLESHOOTING

Continued

Содержание VUL18NR

Страница 1: ...ding Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performe...

Страница 2: ...upplier WARNING This ap pliance is for installation only in a solid fuel burning masonry or UL127 fac tory built fireplace or in a listed ventless firebox en closure It is design certi fied for these...

Страница 3: ...your guide to safe and proper operation of this fireplace WARNING Any change to this heater or its controls can be dangerous WARNING Do not use a blower insert heat exchanger insertorotheraccessorynot...

Страница 4: ...eseproductsmay create a white powder residue within burner box or on adjacent walls and furniture 10 This heater needs fresh outside air ven tilation to run properly This heater has an Oxygen Depletio...

Страница 5: ...s This heater may also be operated as a vented decorative ANSI Z21 60 product by opening the flue damper Non Thermostat Models Only Safety Device This heater has a pilot with an Oxygen Deple tion Sens...

Страница 6: ...and ventilation However in buildings of un usually tight construction you must provide additional fresh air Unusually tight construction is defined as construction where a walls and ceilings exposed t...

Страница 7: ...in the above example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr the space can sup port You must provide additional fresh air Your options are as follows A Rewo...

Страница 8: ...atthroughoutthe house In the event of a power outage you can use this heater as your primary heat source WARNING A qualified ser vice person must install heater Follow all local codes NOTICE Stateorlo...

Страница 9: ...s but not both Gas type is indicated on the rat ingplate Fieldconversionisnot permitted INSTALLATION AND CLEARANCES For Vent Free Operation WARNING Maintain the minimum clearances If you can provide g...

Страница 10: ...ombust ble mate rial is more than 12 you may need the hood accessory to deflect heat away from your mantel shelf See Figure 5 and Figures 6 and 7 page 9 for minimum clearances IMPORTANT If you cannot...

Страница 11: ...antel Clearances When Using Hood Floor Clearances A If installing appliance on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 B If combustible materials are...

Страница 12: ...e vented operation see Fig ure 10 The damper clamp will keep damper open Installation instructions are included with clamp accessory See chart below for minimum permanent flue opening you must provide...

Страница 13: ...lexible gas hose to gas regulator of heater see Figure 11 For Remote Ready models connect approved flexible gas hose to inlet side of gas con trol see Figure 12 IMPORTANT Hold gas regulator with wrenc...

Страница 14: ...xternal regulator The external regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 of water If you do not re duce incoming gas pressure heater regula...

Страница 15: ...all a sediment trap in supply line as shown in Figures 15 or 16 depending on your model Locate sediment trap where it is within reach for cleaning Install in piping system between fuel supply and heat...

Страница 16: ...ints from gas meter to equip ment shutoff valve for natural gas or propane LP supply to equipment shutoff valve for propane LP see Figure 18 or 19 Apply noncorrosive leak detection fluid to all joints...

Страница 17: ...ws provided in hardware kit as shown in Figure 20 7 Disconnectjumperwirefromcontrolvalveat TPTH and TH locations see Figure 21 8 Install remote receiver into receiver bracket using pads and push butto...

Страница 18: ...s will help you identify the log when installing It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplied with heater Note Your appliance may vary fro...

Страница 19: ...hole in middle left log seats over pin in front left log 7 For VUL36 models the front right and left logs are longer and are supported with brackets on each end see Figure 28 Place the left and right...

Страница 20: ...e and to replace any part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS WARNING If fireplace has glass doors never operate this heater with glass doors clo...

Страница 21: ...light Set control knob to any heat level between HI and LO 9 To leave pilot lit and shut off burners only turn control knob clockwise to the PILOT position CAUTION Do not try to ad just heating level...

Страница 22: ...ARNING Burners will come onautomaticallywithinoneminute when the selector switch is in the ON position after the pilot is lit Remote Ready Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do...

Страница 23: ...steps 4 through 8 page 22 and above 9 Slightly push in and turn control knob counterclockwise to the ON position 10 Wait one minute and switch selec tor switch to the ON position to light burners Not...

Страница 24: ...control button on the hand held remote until burner turns on Hold the control button again until burner turns off see Figure 36 To Lock press both buttons on hand held remote control until light stops...

Страница 25: ...he hand held remote to control the room temperature If the hand held remote is misplaced obstructed or for any reason cannot transmit to the receiver the receiver will shut off the fireplace This will...

Страница 26: ...to excessive lint fromcarpeting pethair bedding material etc WARNING Failure to keep the primary air opening s of theburner s cleanmayresultin sooting and property damage Burner Injector Holder and Pi...

Страница 27: ...hrough a drinking straw if compressed air is not available Cleaning AND MAINTENANCE Continued LOGS If you remove logs for cleaning refer to Installing Logs page 18 to properly replace logs Replace log...

Страница 28: ...PILOT position 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...

Страница 29: ...keep control knob pressed in 30 seconds 3 Wait one minute for safety interlock system to reset Repeat ignition operation 4 Fully open equipment shut off valve 5 A Contact local natural or propane LP...

Страница 30: ...ntil air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installa tion clearances see pages 9 through 11 4 Clean burners see Clean ing and Maint...

Страница 31: ...ter between control valve and burner 2 Gas leak See Warning statement at top of page 1 Thermostat sensing bulb needs to be repositioned Thermostat Controlled Models Only 2 Hand held remote control is...

Страница 32: ...he retain ing clamp see Figure 46 Note Do not remove the screw Make sure you tighten the screw after removing the thermostat sensing bulb IMPORTANT Do not force or bend the thermostat sensing bulb or...

Страница 33: ...ing of Thermostat Sensing Bulb Continued Specifications VUL18PT VUL18PR VUL36PR Rating Variable 19 000 30 000 Btu Hr Type Gas Propane LP Ignition Electronic Manifold Pressure 7 9 W C Inlet Gas Pressur...

Страница 34: ...llustrated Parts Breakdown Thermostat controlled Models VUL18NT VUL18PT VUL24NT VUL24PT VUL30NT VUL30PT VUL36NT VUL36PT HRB3624NT AND HRB3624PT PG 11 10 4 1 8 3 12 8 2 5 6 7 24 25 21 2 22 15 13 16 9 8...

Страница 35: ...04 11 Front Burner Injector Natural 1 101004 10 Front Burner Injector Propane LP 1 101004 22 Front Burner Injector Natural 1 101004 06 Front Burner Injector Propane LP 1 13 112708 02 Thermostat Burner...

Страница 36: ...STRATED PARTS BREAKDOWN Remote Ready Variable Control Models VUL18NR VUL18PR VUL24NR VUL24PR VUL30NR VUL30PR vul36nr vul36pr HRB3624NR HRB3624PR LPG 5 6 21 14 22 14 23 26 24 2 2 19 20 16 1 18 17 10 11...

Страница 37: ...er Injector Natural 1 101004 10 Front Burner Injector Propane LP 1 101004 08 Front Burner Injector Natural 1 101004 06 Front Burner Injector Propane LP 1 13 112708 01 Remote Burner Tube 1 14 M12461 26...

Страница 38: ...ight Log 1 4 113621 04 113621 10 113621 16 Middle Left Log 1 5 113621 05 113621 11 113621 11 Bottom Log Remote 1 113621 05 113621 19 113621 19 Bottom Log T stat 1 6 113621 06 113621 12 113621 18 Rear...

Страница 39: ...6 113621 23 113621 23 Back Log 1 7 113621 24 113621 24 Left Small Front Log 1 8 113621 25 113621 25 Right Small Front Log 1 9 113621 26 113621 26 Left Control Cover Log 1 10 113621 27 113621 27 Right...

Страница 40: ...hrb3624pt HRB3624NR HRB3624PR This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 41 of this manual 1 3 2 KEY NO...

Страница 41: ...ually 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 original replacement part s call DESAHearth Products at...

Страница 42: ...ions such as stone or marble FB32C CIRCULATING FB32NC NON CIRCULATING SERIES Fireboxes Not Shown For 18 and 24 log models FB36CA FB42C SERIES CIRCULATING FB36NCA FB42NC SERIES fireboxes NON CIRCULATIN...

Страница 43: ...___________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________...

Страница 44: ...2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 1 866 672 6040 NOT A UPC 119426 01 Rev F 03 07 119426 01...

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