Desa CGR35NA, CGR65NA Technical Service, Service Hints, 35,000 BTU/Hr 50,000 BTU/Hr, Model

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TECHNICAL

SERVICE

SPECIFICATIONS

SERVICE

HINTS

You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-323- 5190.

 

35,000 BTU/Hr

50,000 BTU/Hr

65,000 BTU/Hr

 

Model

Model

Model

BTU

35,000

50,000

65,000

Type Gas

Natural Only

Natural Only

Natural Only

Ignition

Piezo

Piezo

Piezo

Pressure Regulator Setting 3.5" W.C.

3.5" W.C.

3.5" W.C.

Inlet Gas Pressure

 

 

 

Maximum

7" W.C.

7" W.C.

7" W.C.

Minimum

5" W.C.

5" W.C.

5" W.C.

Dimensions, Inches

 

 

 

Heater (H x W x D)

25 x 27 1/4 x 16

28 x 32 1/2 x 16

31 x 37 3/4 x 16

Shipping Weight (pounds) 97

133**/120

158**/145

Flue Vent Size

4" dia.

4" dia.

5" dia.

Orifice Size

34 drill, ø .111

29 drill, ø .136

3.8 mm, ø .1496

** When equipped with blower

Note: These heaters are certified for elevations of 0-4500 feet above sea level. For elevations above 2000 feet, de-rate heater 4% for each 1000 feet above sea level.

When gas pressure is too low

pilot will not stay lit

burner will have delayed ignition

heater will not produce specified heat

When gas quality is bad

pilot will not stay lit

burner will produce yellow flames and soot

heater will backfire when lit

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

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualFor Your Safety Contents Carbon monoxide poisoning may lead to death Safety InformationSafety Information Identification ProductCheck GAS Type Local Codes Unpacking Product FeaturesInstallation Items Heater Clearances Locating HeaterVenting Heater Do not vent heater in any of the following ways see Figure Venting HeaterVenting Heater Proper Size Vent Connecting Heater to Utility Gas Line Connecting to GAS SupplyGas Connection Checking GAS Connections Pressure Testing Gas Supply Piping SystemLocation of Radiants Installing RadiantsInserting Glass Panels Installing Glass PanelInserting Glass into Lower Retaining Channel AIR for Combustion and Ventilation Draft Hood Spillage Test Determining FRESH-AIR Flow for Heater LocationVentilation Air from Outdoors Example 2 Locating Heater in Confined Closed Area Lighting Instructions For Your Safety Read Before LightingOperating Heater Viewing Pilot Shutting Off Heater Manual Lighting ProcedureBlower Operation To Turn OFF GAS to ApplianceBurner Flame Pattern Inspecting Pilot and Burner FlamePilot Flame Pattern Correct Burner Flame Pattern Cleaning and Maintenance Observed Possible Problem Cause Remedy Trouble ShootingSee Changing Burner See Removing Control TROUBLE- ShootingLighting Instructions Top Ing statement atRemoving Control Valve and Burner Tube Service ProceduresRemoving Burner Changing Burner Orifice Blower Wiring DiagramModel Technical ServiceService Hints 35,000 BTU/Hr 50,000 BTU/HrParts Not Under Warranty Ordering Replacement Parts CentralsParts Under Warranty Valve GA5010 AccessoriesBlower Assembly Illustrated Parts ListCabinet Assembly Burner Assembly Thermocouple Interrupter 100792 100792 Limited Warranty Comfort Glow Vented Natural GAS Heaters Warranty Information