Ambiance Fireplaces INT-200 Operations Instructions download pdf (Page 32)

PRESSURE TESTING

INLET PRESSURE TEST:

Outlet (Manifold) Pressure Screw

Inlet Pressure Screw

Figure 30a

IMPORTANT

Pressure check taps for manifold (outgoing) and inlet (incoming) pressure have been incorporated into the valve. The pressure

tap marked OUT measures outgoing pressure and the pressure tap marked IN measures incoming pressure. Follow instructions

below for proper testing procedures. Refer to page 12 for proper NAT and LP manifold pressures.

NOTE

The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure

testing of that system at test pressures in excess of 1/2 psi (3.5 kPa). The appliance must be isolated from the gas supply piping

system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal

to or less that 1/2 psi (3.5 kPa).

NOTE

If inlet pressure reading is too high or too low, contact the gas company. Only a qualified gas service technician should adjust

incoming gas pressure.

CAUTION

A LOW PRESSURE READING CAN CAUSE DELAYED IGNITION.

1. Loosen inlet (IN) pressure tap screw (counter-clockwise).

2. Attach manometer using a 1/14” I.D. hose.

3. Light pilot and burner. Check pressure to ensure it is between the min. and max. recommended pressure settings.

4. Turn off burner and pilot.

5. Disconnect hose and tighten screw (clockwise). Screw should be snug, do not over tighten.

6. Relight pilot and burner. Reattach manometer to inlet pressure tap to verify that it is completely sealed. Manometer should read no

pressure.

MANIFOLD PRESSURE TEST:

1. Light pilot.

2. Loosen manifold (OUT) pressure tap screw (counter-clockwise).

3. Attach manometer to pressure tap using a 1/4” I.D. hose.

4. Light pilot and burner. Check manometer reading.

5. Turn burner and pilot off.

6. Disconnect manometer hose and tighten screw (clockwise). Screw should be snug, do not over tighten.

7. Attach manometer to manifold pressure tap to verify it is completely sealed. Manometer should read no pressure when pilot and burner

are on.

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Ambiance Fireplaces INT-200 Operations Instructions Page 32