Pressure Testing - kozy heat Two Harbors 55616 Installation And Operation Manual

IMPORTANT NOTICE: Pressure check taps for manifold (outgoing) and inlet (incoming) pressure have been incorporated into the
NOTE: The appliance and its individual shutoff valve must be disconnected from gas supply piping system during any
pressure testing of that system at pressures in excess of ½ psi.
NOTE: The appliance must be isolated from gas supply piping system by closing its individual manual shut-off valve during
any pressure testing of the gas line at test pressures equal to or less than ½ psi (3.5 kPa).
INLET PRESSURE TEST:
1. Loosen inlet (IN) pressure tap screw (counter-clockwise).
2. Attach manometer using a 5/16" I.D. hose.
3. Light pilot.
4. Turn gas control knob to ON (burner should not light). Note manometer reading.
5. Press rocker switch to ON. Check pressure to ensure that it stays near the maximum inlet pressure.
6. Press rocker switch to OFF.
7. Turn gas control knob to OFF.
8. Disconnect hose and tighten screw (clockwise). Screw should be snug, do not over tighten.
9. Relight pilot and turn gas control knob to ON. Reattach manometer to inlet pressure tap to verify that it is completely sealed.
Manometer should read no pressure.
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.
MANIFOLD PRESSURE TEST:
1. Light pilot.
2. Loosen manifold (OUT) pressure tap screw (counter-clockwise).
3. Attach manometer to pressure tap using a 5/16" I.D. hose.
4. Turn gas control knob to ON.
5. Press rocker switch to ON and note manometer reading.
6. Press rocker switch to OFF.
7. Disconnect manometer hose and tighten screw (clockwise). Screw should be snug, do not over tighten.
8. Attach manometer to manifold pressure tap to verify that it is completely sealed. Manometer should read no pressure when rocker
switch is pressed to ON.
Figure 27a

PRESSURE TESTING

valve. The pressure tap marked OUT measures outgoing pressure and pressure tap marked IN measures
incoming pressure. Follow instructions below for proper testing procedures.
INLET
CAUTION: A LOW PRESSURE READING CAN
MANIFOLD
PAGE 27
CAUSE DELAYED IGNITION.