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www.desatech.com

124452-01A

17

OPERATION 

LIGHTING 

INSTRUCTIONS

 WARNING:

•  If  fireplace  has  glass  doors, 

never operate this heater with 

glass doors closed. If you op

-

erate heater with doors closed, 

heat  buildup  inside  fireplace 

will cause glass to burst. Make 

sure there are no obstructions 

across openings of fireplace.

•  You must operate this heater 

with  a  fireplace  screen  in 

place.  Make  sure  fireplace 

screen  is  closed  before  run

-

ning heater. 

NOTICE: During initial operation 

of new heater, burning logs will 

give off a paper-burning smell. 

Orange flame will also be pres

-

ent. Open damper or window to 

vent smell. This will only last a 

few hours. 

Note: Home owners generally prefer to oper-
ate  their  heater  with  the  chimney  damper 
closed. This will put all the heat into the room. 
However, there may be times you will desire 

the full flames of the HI heat setting but will 
find the heat output excessive. You can open 

the chimney damper (if you have one) fully or 
partially to release some of the heat.

  WARNING:  Damper  handle 

will  be  hot  if  heater  has  been 

running.

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 quali

-

fied service technician or gas supplier. 
Force or attempted repair may result in 
a fire or explosion.

D.  Do not use this appliance if any part has 

been  under  water.  Immediately  call  a 
qualified  service  technician  to  inspect 
the appliance and to replace any part of 
the control system and any gas control 
which has been under water. 

Summary of Contents for VyS18NC

Page 1: ...o not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installat...

Page 2: ...vented gas fired heat er It uses air oxygen from the room in which it is installed Provisions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ven tilation...

Page 3: ...warnings Keep this manual for reference It is 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 i...

Page 4: ...less than 100 lbs capacity is not recommended propane LP units only 4 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...

Page 5: ...heaters Non thermostat models may also be operated as a vented decorative ANSI Z21 60 product by opening flue damper Safety Pilot This heater has a pilot with an Oxygen Deple tion Sensing ODS safety s...

Page 6: ...whose volume is less than 50 cubic feet per AIR FOR COMBUSTION AND VENTILATION Continued 1 000 Btu per hour 4 8 m3 per kw of the ag gregate input rating of all appliances installed in that space and a...

Page 7: ...asCode or applicable local codes VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space When ventilating to an adjoining unconfined space you...

Page 8: ...at resistant sealant Do not seal chimney flue damper Installation WARNING Never install the heater in a bedroom or bathroom un less installed as a vented appli ance see page 11 in a recreational vehic...

Page 9: ...he ceiling should not be less than 42 Figure 4 Minimum Clearance for Combustible to Wall Minimum 16 from Side Wall Example INSTALLATION Continued NOTICE Manual control heaters may be used as a vented...

Page 10: ...nces you must operate heater with chimney flue damper open Go to Install ing Damper Clamp Accessory for Vented Operation page 11 INSTALLATION Continued Mantel Clearances In addition to meeting noncomb...

Page 11: ...ented heater ap pliance must be installed only in a solid fuel burning fireplace with a working flue and constructed of noncombustible material You may use this heater as a vented product There are th...

Page 12: ...ealant resistant to propane LP gas not provided electric drill with 3 16 drill bit flathead screwdriver 1 Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regula...

Page 13: ...regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 of water If you do not reduce incoming gas pressure heater regulator damage could occur Install...

Page 14: ...regulator 2 Cap off open end of gas pipe where equip ment shutoff valve was connected 3 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening mai...

Page 15: ...ingto the log installation instructions in this manual Flames contact ing log will create soot It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplie...

Page 16: ...in Figure 19 The bottom of the log is marked with a C for center Match square peg on center of rear log with square hole in bottom of center crossover Match round peg on center of front log with round...

Page 17: ...R 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 pi...

Page 18: ...30 sec onds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 If control knob does not pop out when released contact a qualified service perso...

Page 19: ...own If pilot flame pattern is incorrect as shown in Figure 24 turn heater off see To Turn Off Gas to Ap pliance page 18 see Troubleshooting page 21 Note The pilot flame on natural gas units will have...

Page 20: ...older located at the end of the burner tube again Remove any large particles of dust dirt lint or pet hair with a soft cloth or vacuum cleaner nozzle Figure 25 Injector Holder On Outlet Burner Tube Bu...

Page 21: ...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 OBSERVED PROBLEM When control knob is pressed in and turned to pilot...

Page 22: ...or propane LP gas company 1 Contact local natural or propane LP gas company 2 Clean burner see Cleaning and Maintenance page 19 or replace burner orifice 1 Clean burner see Cleaning and Maintenance pa...

Page 23: ...burner until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum instal lation clearances see page 8 4 Clean burner see Cleaning and Maintenance...

Page 24: ...see Checking Gas Con nections page 14 1 Open window and or door for ventilation 2 Contact local natural or propane LP gas company 3 Clean ODS pilot see Cleaning and Maintenance page 19 1 Locate and co...

Page 25: ...Maximum 10 5 W C Minimum 5 W C Shipping Weight 27 lbs For the purpose of input adjustment Service Hints When Gas Pressure Is Too Low pilot will not stay lit burners will have delayed ignition heater...

Page 26: ...www desatech com 124452 01A 26 Parts Variable Manually Controlled VYS18NC VYS18PC VYS24NC AND VYS24PC 15 17 3 17 4 18 Models 17 4 24 Models 3 14 16 11 10 4 2 12 8 5 14 13 7 9 1 15 15 17 5 17 2 17 1...

Page 27: ...1 107186 06 Injector 1 107186 07 Injector 1 107186 08 Injector 1 12 098354 01 Control Knob 1 13 099387 08 Pilot Tube 1 14 M11084 38 HWH AB 8 18 x 0 38 Screw 1 15 M11084 26 HWH AB 10 16 x 0 38 Screw 8...

Page 28: ...446 1446 Fax 616 791 8270 www nbmc com Washer Equipment Co 1715 Main Street Kansas City MO 64108 2195 KS MO AR 816 842 3911 www washerparts com East Coast Energy Products 10 East Route 36 W Long Bran...

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Page 32: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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