
Page 24
A
D
E
C
F
B
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 MANIFOLD 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 depressing the bottom of the rocker switch [C] and note manometer reading.
6. Turn 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. Turn the rocker switch [C] to the ‘ON’ position by depressing the bottom of the switch and check the pressure
to ensure that it stays near the maximum inlet pressure.
6. Turn 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 20
Содержание 961 DV
Страница 33: ...Page 29...
Страница 34: ...Page 30...