Maytag MDG-30 manual Preoperational Tests, GAS Models only

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I. PREOPERATIONAL TESTS

ALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions.

1.Turn on electric power to the dryer.

2.Refer to the Operating Instructions for starting your particular model dryer.

3.GAS MODELS ONLY

a.When a gas dryer is first started (during initial start-up), it has a tendency not to ignite on the first ignition attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for the air to be purged from the lines.

NOTE: During the purging period, check to be sure that ALL gas shut-off valves are open.

NOTE: Gas model dryers are equipped with a Direct Spark Ignition (DSI) system which has internal diagnostics. If ignition is not established after the first attempt, the heat circuit in the DSI module will lock out until it is manually reset. To reset the DSI (Direct Spark Ignition) system, open and close the main door and restart the dryer.

b.A gas pressure test should be taken at the gas valve pressure tap of each dryer to assure that the water column (W.C.) pressure is correct and consistent.

NOTE: Water column (W.C.) pressure requirements (measured at the pressure tap of the gas valve body):

Natural Gas -----------------

3.5 Inches Water Column (W.C.)

Liquid Propane (L.P.) Gas ---

10.5 Inches Water Column (W.C.)

IMPORTANT: There is no regulator provided in an L.P. dryer. The water column pressure must be regulated at the source (L.P. tank), or an external regulator must be added to each dryer.

4.Make a complete operational check of ALL safety related circuits:

a.Door Switches

b.Hi-Limit thermostats

c.Cycling thermostat

d.GAS Models - Sail Switch

NOTE: The sail switch can be checked for proper operation by opening the lint door while heating circuit (gas burner/electric oven) is active (on). The heating unit should shut off within a few seconds. If not, make necessary adjustments to the sail switch.

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Contents MDG-30 Fast Dry Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Technical Information Section Safety Precautions Personal Injury or Fire could ResultGAS Supply Before ANY Covers or Guards are Removed ADJUSTING, INSTALLATION, or Testing Ofany Equipment perOsha Occupational Safety and HealthAdministration Standards Specifications SuperSpecifications MDG-30 Fast Dry Installation Procedures Location Requirements Dryer Enclosure Requirements Fresh AIR Supply Exhaust Requirements Single Dryer Venting Illus. B Multiple Dryer Common Venting ILLUS. D Importantventingreminders Electrical Information Electrical RequirementsMust be Provided Odfn Klwh Uhhq Important a Circuit Serving Each Dryer Must be Provided DG-30 Fast DRY GAS GAS Information Injury and Improper Operation of the Dryer$785$ Page Page Preparation for Operation and START-UP Preoperational Tests GAS Models onlyPreoperational Instructions Page OPL Models Shut Down Instructions Service PartsReturning Warranty Cards SectionRoutine Maintenance CleaningAdjustments LubricationNo L.E.D. light emitting diode display Drive motor not operating does not startBlower motor not operating does not start Microprocessor computer display reads dSFLMicroprocessor controller computer display reads door No heat, ignitor sparks, burner goes on and off right awayDryer operates but is taking too long to dry Excessive noise or vibration Condensation on main door glassDryer or scraping noise at basket tumbler area Dryer operates but is taking too long to dry load Heating unit not operating ALL temperature selectionsMain burners are burning with a yellow flame Dryer is cycling on hi-limit thermostat Technical Information Data LabelSerial Number Procedure for Functional Check Replacement Components Direct Spark Ignition DSI System MAYTAG-113069 1-01/29/99-250
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