PrecisionTemp PT-200FT, Руководство по обслуживанию

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Rev 8/2014
PrecisionTemp, Inc • 11 Sunnybrook Drive • Cincinnati, Ohio, 45237 • 1-800-934-9690 •
fax 513-641-0733 54
SB-14 Burner Manifold Pressure Check and Adjustment
Model: PT-200FT, PT-200RC & PT-56
Software version: All
Tools required: DC Multi-meter
Manometer
Process:
1. Disconnect the power to the PT-200/56 and turn the gas supply off at the manual valve
outside of the booster heater.
2. Remove the 1/8” brass plug on the left side of the burner manifold.
3. Once you have removed the 1/8” plug, connect the manometer.
4. Locate the two pin connector coming from the gas modulating valve (Illustration 200-12).
5. Switch multi-meter to 20v DC scale.
6. Slide the probes behind the two wires of the 2-pin connector coming from the gas
modulating valve. Red probe to the white wire and black probe to black wire.
7. Turn on the gas supply at the manual valve and turn power to booster heater back on.
8. With your manometer and multi-meter connected, lock the dish machine into a rinse
mode, reconnect electrical power to the booster heater and turn the PT-200/56 on.
9. At ignition there should be 0v DC going to the gas modulating valve coil, the manometer
should read approximately 0.25 - 0.50 WCI.
10. If all conditions are correct, once the flame is detected you should have approximately
22v DC (12vDC PT-56) and 2.85 WCI - 3.70WCI @ full burn depending on model year
& type gas , refer to product label on access door.
11. Remove manometer and replace 1/8” plug using approved pipe dope.
Adjusting Manifold Pressure
1. Remove cap from combination gas valve regulator. (ILL. 200-9)
2. Turn screw under cap clockwise to increase manifold pressure and counter-clockwise
to reduce pressure to the correct reading.
3. Replace cap on the combination gas valve.
Be sure to check all gas fittings with approved leak test solution before
restarting the PT-200/56.
Kit Parts List:
None
Reference Illustrations:
200-12 Gas Modulation Valve
200-9 Combination Gas Valve