background image

111826-02C

For more information, visit www.desatech.com

15

15

TROUBLESHOOTING

Continued 

OBSERVED PROBLEM

One or both burner does not light after 
ODS/pilot is lit

Delayed ignition of burner

Burner backfi ring  dur ing  com bus tion

Orange flame in burner during burner 
com bus tion

Slight smoke or odor during initial op-
 er a tion

Appliance produces a whis tling noise when 
burners are lit

White powder residue forming within burn er 
box or on adjacent walls or furniture

Moisture/con den sa tion  no ticed  on  win-
 dows

REMEDY

1.   Contact local natural or pro pane/LP gas 

company

2.  Clean burner(s) (see Cleaning and 

Main te nance, page 13) or re place burner 
orifi ce(s)

3.   Contact qualifi ed service person
4.   Replace burner orifi ce(s)
5.   Put remote selector in ON position

6.   See Wiring Diagram, page 18

1.   Contact local natural or pro pane/LP gas 

company

2.  Clean burner(s) (see Cleaning and 

Main te nance, page 13) or replace burner 
orifi ce(s)

3.   Contact qualifi ed service person

1.   Clean burner (see Cleaning and Main-

 te nance, page 13) or replace burner 
ori fi ce

2.   Replace damaged burner
3.   Replace gas regulator

1.  Check burner(s) for dirt and debris. If 

found, clean burner(s) (see Cleaning and 
Main te nance
, page 13)

2.   Replace gas regulator

1.  Problem will stop after a few hours of 

operation

1.   Turn control knob to LO position and let 

warm up for a minute

2.  Operate burners until air is re moved 

from line. Have gas line checked by lo-
 cal nat u ral or propane/LP gas com pany

3.  Observe minimum in stal la tion  clear-

 anc es (see pages 7 through 8)

4.   Clean burners (see Cleaning and Main-

 te nance, page 13) or replace burner 
orifi ce(s)

1.   Turn appliance off when using furniture 

polish, wax, carpet cleaners, or similar 
products

1.  Refer to Air for Com bus tion  and  Ven ti -

la tion  re quire ments  (page  4)

POSSIBLE CAUSE

1.   Inlet gas pressure is too low

2.   Burner orifi ce(s) clogged

3.   Mislocated crossover tube
4.   Burner orifi ce(s) di ame ter is too small
5.  Remote selector in OFF position (Re-

 mote-Ready Models Only)

6.  Wire disconnected from gas control 

(Re mote-Ready  Models  Only)

1.   Manifold pressure is too low

2.   Burner orifi ce(s) clogged

3.   Mislocated crossover tube

1.   Burner orifi ce is clogged or damaged

2.   Damaged burner
3.   Gas regulator defective

1.   Not enough air

2.   Gas regulator defective

1.   Residues from manu fac tur ing  pro cess es 

and logs curing

1.  Turning control knob to HI po si tion 

when burners are cold

2.   Air in gas line

3.   Air passageways on appliance blocked

4.  Dirty or partially clogged burner 

orifi ce(s)

1.   When heated, vapors from furniture pol-

 ish, wax, carpet cleaners, etc. turn into 
white powder residue

1.   Not enough com bus tion/ven ti la tion  air

TROUBLESHOOTING

Summary of Contents for Design Dynamics VTD-18N-BTB

Page 1: ...appliance may be installed in an aftermarket 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 applian...

Page 2: ...18 ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST 20 ACCESSORIES 22 OWNER S REGISTRATION FORM 23 WARRANTY INFORMATION Back Cover your building immediately call your gas supplier from a neighbor s phone Fo...

Page 3: ...urface to avoid burns or clothing ignition Log set will remain hot for a time after shutdown Allow surface to cool before touching 14 Carefully supervise young children when they are in the room with...

Page 4: ...nformation on pages 4 through 6 will help you classify your space and provide adequate ventilation Unusually Tight Construction The air that leaks around doors and windows may provide enough freshairf...

Page 5: ...8 m3 per kw of the aggregate input rating of all appli ances installed in that space Rooms communicating directly with the space in which the appliances are installed through openings not furnished wi...

Page 6: ...Into Adjoining Room Option 2 Ventilation Grills Into Adjoining Room Option 1 12 12 AIR FOR COMBUSTION AND VENTILATION Ventilation Air Cont the outdoors or spaces open to the outdoors These spaces inc...

Page 7: ...y in a solid fuel burning fireplace with a working flue and constructed of noncom bustible material The charts in Figure 4 indicate technical information regarding the installation of your gas log set...

Page 8: ...ure regulator dam age could occur Install external regulator with the vent pointing down as shown in Figure 8 page 9 Pointing the vent down protects it from freezing rain or sleet CAUTION Use only new...

Page 9: ...leak detection fluid to all joints Bubbles forming show a leak Correct all leaks at once CAUTION Make sure external regulator has been installed between propane LP supply and appliance Seeguidelinesun...

Page 10: ...joints from gas meter to equipment shutoff valve for natural gas or propane LP supply to equipment shutoff valve for propane LP see Figure 11 Apply noncorrosive leak detection fluid to all joints Bubb...

Page 11: ...d turn control knob counterclockwise to the PILOT position Press in control knob for five 5 seconds see Figure 13 Note You may be running this appliance for the first time after hooking up to gas supp...

Page 12: ...NG PROCEDURE 1 Follow steps 1 through 6 under Lighting Instructions 2 Depress control knob and light pilot with match 3 Keep control knob pressed in for 30 seconds after lighting pilot After 30 second...

Page 13: ...orrect Pilot Flame Pattern Your pilot may vary from pilots shown Pilot Burner Thermocouple Pilot Burner Thermocouple Figure 17 Incorrect Pilot Flame Pattern Your pilot may vary from pilots shown Therm...

Page 14: ...gnitor 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 ignit...

Page 15: ...Problem will stop after a few hours of operation 1 Turn control knob to LO position and let warm up for a minute 2 Operate burners until air is removed from line Have gas line checked by lo cal natura...

Page 16: ...DS pilot is partially clogged 1 Gas leak See Warning statement at top of page 2 Control valve or gas control defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning statemen...

Page 17: ...of water Maximum 10 5 W C 10 5 W C Minimum 5 0 W C 5 0 W C Shipping Weight 32 lbs 34 lbs For purpose of input adjustment VTD 18P PDG VTD 18P BTB VTD 24P PDG VTD 24P BTB Btu Variable 37 000 54 000 41 0...

Page 18: ...arranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA International s Technical...

Page 19: ...111826 02C For more information visit www desatech com 19 19 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 20: ...EAKDOWN VTD 24N PDG VTD 24P PDG VTD 24N BTB VTD 24P BTB VTD 18N PDG VTD 18P PDG VTD 18N BTB VTD 18P BTB 3 Log sets and mounting plates are ordered as an assembly REMOTE MODELS ONLY GTA Replacement Par...

Page 21: ...6 01 111796 02 111816 01 111793 01 see table page 20 112359 01 111800 01 111372 01 112370 01 111371 02 111807 02 111796 01 097159 04 103784 01 103784 02 099998 01 111817 02 111828 01 103778 01 111816...

Page 22: ...HUTOFF VALVE GA5010 For all models Equipment shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe FIREPLACE HOOD Black GA6050 Brass GA6052 Antique Brass GA6053 For all models Helps deflect heat away from...

Page 23: ...ge Completed Graduate School 13 Age of Purchaser Under 20 20 29 30 39 40 49 50 59 60 or Over 14 Buyer s total annual household income Under 15 000 15 000 to 19 999 20 000 to 34 999 35 000 to 49 999 50...

Page 24: ...111826 02C For more information visit www desatech com 24 2701 S Harbor Blvd Santa Ana CA 92704 www desatech com Postage Required TM...

Page 25: ..._________________________________ ________________________________________________________________________________________________ _____________________________________________________________________...

Page 26: ...cement parts voids this warranty The appliance MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to pa...

Reviews: