WIRING DIAGRAM SPECIFICATIONS TECHNICAL SERVICE REPLACEMENT PARTS

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WIRING DIAGRAM

Note: For proper operation of optional accessories, the wires from the switch to the control must be connected exactly as shown.

A

 

UTO

OF

ON

F

 

 

 

 

Thermopile

SPECIFICATIONS

 

 

 

 

 

Natural Gas

Propane/LP

Btu (Variable)

20,000/39,000

20,000/39,000

Type Gas

Natural Gas Only

Propane/LP Only

Ignition

Piezo

Piezo

Pressure Manifold

3.5" W.C.

8.0" W.C.

Inlet Gas Pressure (in. of water)

 

 

Maximum

10.5"

14"

 

Minimum*

5"

11"

 

Shipping Weight

32 lbs.

32 lbs.

* For input adjustment

 

 

 

SERVICE HINTS

When Gas Pressure Is Too Low

pilot will not stay lit

burners will have delayed ignition

heater will not produce specified heat

propane/LP gas supply may be low

You may feel your gas pressure is too low. If so, contact your local natural or propane/LP gas supplier.

TECHNICAL SERVICE

You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-866-672-6040. When calling please have your model and serial numbers of your heater ready.

You can also visit DESA International’s technical services web site at www.desatech.com.

REPLACEMENT PARTS

Note: Use only original replacement parts. This will protect your warranty 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 Service Department at 1-866-672-6040. When calling DESA Inter- national, have ready

your name and address

model and serial numbers of your heater

how heater was malfunctioning

type of gas used (propane/LP or natural gas)

purchase date

Usually, 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 DESA International at 1-866-672-6040 for referral information. When calling DESA International, have ready

model number of your heater

the replacement part number

For morevisit www..com

110398-01A

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Desa VYM27NRPR installation manual Wiring Diagram, Specifications, Service Hints, Technical Service, Replacement Parts

VYM27NRPR specifications

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