NOTE: The appliance and its individual shutoff valve must be disconnected from the 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 the 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).
IMPORTANT NOTICE:
Pressure check taps for the 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.
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 the rocker switch is pressed to „ON‟.
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.
CAUTION:
A LOW PRESSURE
READING CAN CAUSE
DELAYED IGNITION
MANIFOLD
INLET
DSL-36 PRESSURE TESTING
PAGE 48
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.
Summary of Contents for Dassel DSL-36-RF
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