Delta PG PLUS-25 Operations Instructions download pdf (Page 43)

37

Gas Piping

SECTION VII - Gas Piping

Gas Supply Piping Connection

The gas supply piping must be installed

in accordance to all applicable local,

state and national codes and utility

requirements.

1. Remove the burner jacket hood. Refer to

Figure 27 to pipe gas supply to the burner.

a. Install a pipe union at the factory sup-

plied gas nipple, for ease of service.

b. Install a manual shutoff valve in the gas

supply piping as shown in Figure 27.

For installations in Canada the installer

must tag and identify the main shutoff

valve.

c. Install a drip leg on the gas supply line

prior to connecting to the PERFOR-

MANCE PLUS gas train as shown in

Figure 27.

2. Support the gas piping using hangers. Do

not support the piping by the unit or its

components.

3. Purge all air from the gas supply piping.

4. Before placing the PERFORMANCE

PLUS into operation, check and test all

connections for leaks.

Close the manual shutoff valve during

any pressure test with less than 13”w.c..

Disconnect the PERFORMANCE

PLUS and its gas valve from the gas

supply piping during any pressure test

greater than 13”w.c..

Do not check for gas leaks with an open

flame. Use a gas detection device or bub-

ble test. Failure to check for gas leaks

can cause severe personal injury, death

or substantial property damage.

5. Use pipe dope compatible with natural and

propane gases. Apply sparingly only to the

male threads of pipe joints so that pipe

dope does not block gas flow.

Failure to apply pipe dope as detailed

above can result in severe personal

i n j u ry, death or substantial pro p e r t y

damage.

Use a two-wrench method of tightening

gas piping near the unit and its gas valve.

Use one wrench to prevent the gas valve

line connection from turning and the sec-

ond to tighten adjacent piping. Failure

to support the gas valve connection pip-

ing could damage the valve and the gas

line components.

WARNING

WARNING

WARNING

NOTICE

Fig. 27: Recommended Gas Supply Piping

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 75 76

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