Desa EFS33NR ユーザーズマニュアル

107172

AUT

O

OF

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ON

Thermopile

Note

: For proper operation of optional accessories, the wires from

the switch to the control must be connected exactly as shown.

Btu (Variable)

20,000/33,000

Type Gas

Natural Gas Only

Ignition

Piezo

Pressure Manifold

3.5" W.C.

Inlet Gas Pressure (in. of water)

Maximum

10.5"

Minimum*

5"

Shipping Weight

122 lbs.

* For input adjustment

Btu (Variable)

20,000/33,000

Type Gas

Propane/LP Only

Ignition

Piezo

Pressure Manifold

7.9" W.C.

Inlet Gas Pressure (in. of water)

Maximum

13"

Minimum*

11"

Shipping Weight

122 lbs.

* For input adjustment

You may have further questions about installation, operation, or
troubleshooting.

If so, contact DESA International’s Technical Service Department
at 1-866-672-6040.

You can also visit DESA International’s technical services web site
at 

Note:

 Use only original replacement parts. This will protect your

warranty coverage for parts replaced 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 fireplace

• how fireplace 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.

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 fireplace

• the replacement part number

• pilot will not stay lit

• burners will have delayed ignition

• heater will not produce specified heat

• propane/LP gas supply may be low for propane/LP unit

You may feel your gas pressure is too low. If so, contact your local
gas supplier.