Desa CGP16RA, CGP26D installation manual Connecting, To Gas, Supply

Models: CGP26D CGP16RA

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CONNECTING

CONNECTING

 

NOTICE

TO GAS

A qualified service person must connect heater to gas supply.

SUPPLY

Follow all local codes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

 

Never connect heater directly to the propane/LP supply. This heater

 

requires an external regulator (not supplied). Install the external

 

regulator between the heater and propane/LP supply.

 

 

 

 

 

 

 

 

 

The installer must supply an external regulator. The external regulator will reduce

 

incoming gas pressure. You must reduce incoming gas pressure to between 11 and

 

14 inches of water. If you do not reduce incoming gas pressure, heater regulator

 

damage could occur. Install external regulator with the vent pointing down as

 

shown in Figure 12. Pointing the vent down protects it from freezing rain or sleet.

 

Propane/LP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Supply Tank

 

 

 

 

 

 

External

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Regulator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vent Pointing

Down

Figure 12 - External Regulator With Vent Pointing Down

CAUTION

Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of large enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Typical Pipe Diameter

CGP16RA

3/8" or greater

CGP26D

1/2" or greater

Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 13, page 15).

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

CAUTION

Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

Install sediment trap in supply line as shown in Figure 13, page 15. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

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Desa CGP16RA, CGP26D installation manual Connecting, To Gas, Supply