Thermo Pride Gas/Propane Furnace PGL User Manual

Page 13

All installations and services must be performed by qualified service personnel.

- COPPER TUBING SIZE FOR LIQUIFIED PETROLEUM GASES -

All

black

pipe

sizes

shown

are

I.D.

Seamless copper tubing may only be used with gases that are not corrosive to it. See note below and check with your
LP gas supplier before using. Seamless copper tubing must comply with standard type K or L for seamless copper
water tube, ASTM B 88; or seamless copper tube for air conditioning field service, ASTM B 280.

NOTE: Copper and brass tubing and fittings (except tin lined) shall not be used if the gas contains more than a trace
(0.3 grains per 100 cubic ft.) of hydrogen sulfide gas.

Maximum supply pressure for liquified petroleum (LP) gas is 14" wc and minimum supply for purpose of input
adjustment is 11" wc.

K. BURNER INSTALLATION

The power gas burner will mount on three stud mounting bolts on the lower mounting plate covering the opening in
the front of the heat exchanger. The end of the burner tube must be inserted no further than 1/4 inch back from the
inside surface of the combustion chamber to ensure proper operation and performance.

NOTE: OVERFIRE AIR TAP IS LOCATED ON LEFT SIDE OF FLAME INSPECTION COVER.

(TOP VIEW)

BURNER INSERTION

ILLUSTRATION (PGL)