Operational Service Check Procedure - Maytag MDG-52 Service Manual

The gas dryer installation must meet the American National Standard...National Fuel Gas Code ANSI Z223.1-LATEST
EDITION, or in Canada, the Canadian Installation Codes CAN/CGA-B149.1 M91 (Natural Gas) or CAN/CGA-B149.2-
M91 (L.P. Gas) or LATEST EDITION, as well as local codes and ordinances and must be done by a qualified
professional.
NOTE: Undersized gas piping will result in ignition problems and slow drying and can create a
safety hazard.
The dryer must be connected to the type of gas (natural or L.P.) indicated on the dryer data label. If this information
does not agree with the type of gas available, contact the reseller who sold the dryer or contact the factory.
The gas input ratings shown on the dryer data label are for elevations up to 2,000 feet (609.6 meters), unless
elevation requirements of over 2,000 feet (609.6 meters) were specified at the time the dryer order was placed with
the factory. The adjustment for dryers in the field for elevations over 2,000 feet (609.6 meters) is made by changing
the burner orifices. If this adjustment is necessary, contact the reseller who sold the dryer or contact the factory.
NOTE: Any burner changes must be made by a qualified technician.
C. OPERATIONAL SERVICE CHECK PROCEDURE
1. Turn on electric power to the dryer.
2. To start dryer:
a. Display will read "Select Cycle."
b. Press "E" on the keypad of the microprocessor controller (computer).
c. The dryer will start, and the display will show cycle type and minutes remaining.
3. Make a complete operational check of all the operating controls to assure that the timing is correct, temperature
selection switches are functioning, etc.
4. Make a complete operational check of all safety-related circuits: door switch(es), hi-limit thermostat, sail switch,
cycling thermostats, etc.
5. For gas dryers a gas pressure test should be taken at the gave valve pressure tap of each dryer to assure that
the water column pressure is correct and consistent.
NOTE: Water column pressure requirements (measured at the pressure tap on the gas valve
body):
Natural Gas ___________ 3.5 Inches (8.7 mb) Water Column.
L.P. Gas ______________ 10.5 Inches (26.1 mb) Water Column.
Natural Gas ___________ 6.9 mbar, 0.69 kPa.
L.P. Gas ______________ 24.9 mbar, 2.49 kPa.
6. If computer program changes are required, refer to the Phase 8 Operator's Manual (P/N 113255) for details.
7. The dryer should be operated through one complete cycle to assure that no further adjustments are necessary
and that all components are functioning properly.
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North America
Australia
Maytag Co. 9