Manifold (Outgoing) & Inlet (Incoming) Pressure Check Procedures - kozy heat 942 Installation & Operating Manual

PRESSURE TEST - MANIFOLD & INLET PRESSURE
IMPORTANT NOTICE: A pressure check tap for both the manifold (outgoing) and inlet (incoming) pressure has been
incorporated into the valve by S.I.T. Controls. The right pressure tap is the manifold pressure and the left pressure tap
measures the incoming pressure. Follow the instructions below for proper pressure testing procedures.
TO CHECK THE M ANIFOLD PRESSURE:
1. Light pilot.
2. Loosen the manifold pressure tap [D] by turning the screw counter-clockwise.
3. Attach manometer to pressure tap using a 5/16" I.D. hose [F].
4. Turn black control knob [A] to the 'ON' position.
5. Turn the burner 'ON' by pressing the rocker switch [C] to the 'ON' position and note manometer reading.
6. Press the rocker switch [C] to the 'OFF' position.
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 the rocker switch is turned 'ON'.
NOTE: If manifold pressure reading is within the normal range, an incoming pressure check is not necessary. A too high or too low
pressure reading warrants an inlet (incoming) gas pressure check.
TO CHECK THE INLET PRESSURE:
1. Loosen Inlet pressure tap screw [E] by turning screw counter-clockwise.
2. Attach manometer using a 5/16" I.D. hose [F].
3. Light the pilot.
4. Turn the black control knob [A] to the 'ON' position. (Burner should not come 'ON') and note manometer reading.
5. Press the rocker switch [C] to the 'ON' position and check the pressure to ensure that it stays near the maximum inlet pressure.
6. Press the rocker switch [C] to the 'OFF' position.
7. Turn the pilot to the 'OFF' position.
8. Disconnect hose and tighten screw (clockwise). Screw should be snug, do not over tighten.
9. Relight pilot and turn the control knob [A] to the 'ON' position. Attach manometer to the 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
the incoming gas pressure.
CAUTION: A LOW PRESSURE READING
CAN CAUSE DELAYED IGNITION.
Figure 19
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