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www.desatech.com

124452-01A

3

 WARNING: This product con

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tains and/or generates chemicals 

known to the State of California 

to cause cancer or birth defects 

or other reproductive harm.

IMPORTANT: Read this owner’s 

manual carefully and completely 

before  trying  to  assemble,  op

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erate  or  service  this  fireplace. 

Improper  use  of  this  fireplace 

can  cause  serious  injury  or 

death  from  burns,  fire,  explo

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sion, electrical shock and carbon 

monoxide poisoning.

 DANGER: Carbon monoxide 

poisoning may lead to death!

Carbon  Monoxide  Poisoning:

  Early  signs 

of carbon monoxide poisoning resemble the 
flu,  with  headaches,  dizziness  or  nausea.  If 
you have these signs, the fireplace may not 
be working properly. 

Get fresh air at once!

 

Have  fireplace  serviced.  Some  people  are 
more affected by carbon monoxide than oth-
ers. These include pregnant women, people 
with  heart  or  lung  disease  or  anemia,  those 
under  the  influence  of  alcohol  and  those  at 
high altitudes.

Natural  and  Propane/LP  Gas:

  Natural  and 

propane/LP gases are odorless. An odor-mak-
ing agent is added to these gases. The odor 
helps you detect a gas leak. However, the odor 
added to the gas can fade. Gas may be present 
even though no odor exists.
Make  certain  you  read  and  understand  all 
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  insert,  heat  exchanger 

insert or other accessory not ap

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proved for use with this heater.

SAFETy

Continued

 WARNING: Do not allow fans 

to blow directly into the fireplace. 

Avoid any drafts that alter burner 

flame patterns. Ceiling fans can 

create  drafts  that  alter  burner 

flame  patterns.  Altered  burner 

patterns can cause sooting.

Due  to  high  temperatures,  the 

appliance should be located out 

of traffic and away from furniture 

and draperies.

Do not place clothing or other 

flammable  material  on  or  near 

the appliance. Never place any 

objects on the heater.

Heater base assembly becomes 

very  hot  when  running  heater. 

Keep children and adults away 

from hot surface to avoid burns 

or  clothing  ignition.  Heater 

will remain hot for a time after 

shutdown. Allow surface to cool 

before touching.

Carefully  supervise  young  chil

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dren when they are in the room 

with heater.  

You  must  operate  this  heater 

with a fireplace screen in place. 

Make  sure  fireplace  screen  is 

closed before running heater.

Keep  the  appliance  area  clear 

and free from combustible ma

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terials, gasoline and other flam

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mable vapors and liquids.

1.  This appliance is only for use with type of 

gas indicated on rating plate. This appli-
ance is not convertible for use with other 
gases. 

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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