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116986-01B

3

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.

•  Immediately call your gas supplier from a neighbor’s phone. Fol

-

low the gas supplier’s instructions.

•  If you cannot reach your gas supplier, call the fire department.

IMPORTANT:

 Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, 

paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These 

fumes may mix with combustion air and create odors. These odors will disappear over time.

POSSIBLE CAUSE

1. Battery is not installed. Bat

-

tery power is low

2. Bad module

1. Metal expanding while heating 

or contracting while cooling

1. Heater burning vapors from 

paint, hair spray, glues, clean

-

ers, chemicals, new carpet, 

etc. (See 

IMPORTANT

 state-

ment above)

2. Low fuel supply (propane/LP 

only)

3. Gas  leak. 

See  Warning 

statement at top of page

1. Not enough fresh air is avail

-

able

2. Low line pressure

3. ODS/pilot  is  partially 

clogged

4. Thermostat  on  remote  is 

satisfied

1. Gas  leak. 

See  Warning 

statement at top of page

2. Control valve or gas control 

defective

1. Foreign matter between con

-

trol valve and burner

2. Gas  leak. 

See  Warning 

statement at top of page

REMEDY

1. Replace  9-volt  batteries  in 

receiver and remote control

2. Replace module

1. This is common with most heat

-

ers. If noise is excessive, contact 

qualified service person

1. Open  window  to  ventilate 

room. Stop using odor caus

-

ing products while heater is 

running

2. Refill supply tank (propane/LP 

only)

3. Locate and correct all leaks 

(see 

Checking Gas Connec-

tions

, page 13)

1. Open window and/or door for 

ventilation

2. Contact local natural or pro

-

pane/LP gas company

3. Clean ODS/pilot (see

 Cleaning 

and Maintenance

, page 19)

4.  Adjust temperature

1. Locate and correct all leaks 

(see 

Checking Gas Connec-

tions

, page 13)

2. Replace control valve or gas 

control

1. Take  apart  gas  tubing  and 

remove foreign matter

2. Locate and correct all leaks 

(see 

Checking Gas Connec-

tions

, page 13)

OBSERVED PROBLEM

Remote does not function

Heater produces a clicking/tick

-

ing noise just after burner is lit 

or shut off

Heater  produces  unwanted 

odors

Heater  shuts  off  in  use  (ODS 

operates)

Gas odor even when control knob 

is in OFF position

Gas odor during combustion

Содержание Design Dynamics VF-18N-MHD

Страница 1: ...pliance Do not 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...

Страница 2: ...air oxygen from the room in which it is installed Provi sions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ventilation section on page 5 of this manual...

Страница 3: ...a to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owner s manualcarefullyandcompletely before trying to assemble operate or service this heater Improper use of this hea...

Страница 4: ...eaterneedsfresh outsideairventilationto runproperly Thisheaterhasanoxygendepletion sensing ODS pilot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for...

Страница 5: ...ystem requires no matches or other source to light log set Air For Combustion and Ventilation WARNING This heater shall not be installed in a confined space or unusually tight con struction unless pro...

Страница 6: ...grills between the rooms 1 Determine the volume of the space length x width x height Length x Width x Height __________cu ft volume of space Example Space size 20 ft length x 16 ft width x 8 ft ceilin...

Страница 7: ...ption 3 Figure 2 Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts Figure 2 Ventilation Air from Ins...

Страница 8: ...WARNING Never install the heater in a bedroom or bathroom in a recreational vehicle where curtains furniture cloth ing or other flammable objects are less than 42 from the front top or sides of the he...

Страница 9: ...Size Height Depth Front Width Rear Width 18 20 14 35 22 1 2 24 20 14 35 22 1 2 MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size 18 or 24 Side Wall 16 Ceiling 42 Floor 5 Measured at 14 dep...

Страница 10: ...Minimum Mantel Clearances When Using Hood Minimum Noncombustible Material 8 Min 12 15 18 All minimum distances are in inches 20 2 1 2 6 8 10 12 Distances to Underside of Mantel Hood GA6050 GA6052 or G...

Страница 11: ...ht remove the mantel 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 less than 14...

Страница 12: ...ction Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 25 For propane LP units the installer must supply an external regulator The external regu...

Страница 13: ...Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 25 Minimum inlet pressure for purpose of input adjustment Figure 12 Gas Connection 3 Minimum C...

Страница 14: ...e LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from gas meter to equipment shutoff valvefornatural gas or propane LPsup ply...

Страница 15: ...ARNING If fireplace has glass doors never operate this heater with glass doors closed If you op erateheaterwithdoorsclosed heat buildup inside fireplace willcauseglasstoburst Make suretherearenoobstru...

Страница 16: ...off with ON OFFswitch thus disabling the remote hand set Setting The Display C 24h and F 12h Press and hold OFF and until display changes from F and 12 hour clock to C and 24 hour clock or vice versa...

Страница 17: ...gas Shutting Off Burner Only pilot stays lit Press to decrease the flame height and shut off main burner MANUAL LIGHTING Procedure WARNING Manual lighting mustbeperformedbyaqualified service person Th...

Страница 18: ...r knob to adjust flame Knob has a slipping clutch that allows manual flame height adjustment to turn gas off to appliance Shutting Off Heater Press OFF button on remote control to switch off main gas...

Страница 19: ...to keep the primary air opening s of theburner s cleanmayresultin sooting and property damage Burner Injector Holder Air Inlet Hole The primary air inlet holes allow the proper amount of air to mix w...

Страница 20: ...he burner Figure 25 Injector Holder on Front Burner Tube Burner Tube Primary Air Inlet Opening Injector Holder Injector Figure 24 Removing Front Log to Clean Front Burner Main Log Assembly Front Log A...

Страница 21: ...ssure is too low 2 Burner orifice s clogged OBSERVED PROBLEM When and arepressedat the same time there is no spark at ODS pilot When and are pressed there is spark at ODS pilot but no ignition Burner...

Страница 22: ...and let warm up for a minute 2 Operate burner until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installation clearances see page 9 4 Cl...

Страница 23: ...artially clogged 4 Thermostat on remote is satisfied 1 Gas leak See Warning statement at top of page 2 Control valve or gas control defective 1 Foreign matter between con trol valve and burner 2 Gas l...

Страница 24: ...F Switch Soldered Cable Thermocurrent Cable 1 Motor Knob MAN Knob troubleshooting Continued POSSIBLE CAUSE Battery nearly down When signal appears the first time ap proximately 10 ignitions left Cable...

Страница 25: ...ct authorized dealers of this product If they can t supply original replacement part s call DESA s Technical Service Department at 1 866 672 6040 When calling DESA have ready your name your address mo...

Страница 26: ...llustrated Parts Breakdown Models VF 18N MHD VF 18P MHD VF 24N MHD and VF 24P MHD 1 2 3 4 5 25 22 7 8 18 9 6 10 11 26 34 23 12 21 20 29 28 29 28 27 24 27 24 22 13 19 14 32 30 15 15 15 15 15 15 31 15 1...

Страница 27: ...01 117004 01 117004 01 Pilot Shield 1 20 099918 03 099918 02 099918 03 099918 02 Burner Regulator 1 21 116957 01 111803 03 116957 01 Air Shutter 1 22 111824 01 111824 01 111824 01 111824 01 Nut Sleeve...

Страница 28: ...d by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear a...

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