INSTALLATION PROCEDURES
3-23
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. Make sure the main door is closed and the lint drawer is securely in place.
3. Refer to the Operating Instructions for starting your particular model dryer.
4. Check to insure that the basket (tumbler) starts in the clockwise (CW) direction. Additionally,
check the direction of the blower motor impellor (fan) to insure that impellor (fan) rotates in
the clockwise (CW) direction as viewed from the front. If it is, the phasing is correct. If the
phasing is incorrect, reverse two (2) of the leads at L1, L2, or L3 of the power supply
connections made to the dryer.
IMPORTANT: Dryer blower motor impellor / fan as viewed from the front must turn in the
clockwise (CW) direction, otherwise dryer efficiency will drastically be reduced
and premature component failure can result.
5. Heat Circuit Operational Test
Gas Models
1) When the dryer is first started (during initial start – up), the burner has a tendency
not to ignite on the first attempt. This is because the gas supply piping is filled with
air, so it may take a few minutes for this air to be purged from the lines.
2) The dryer is equipped with a direct spark ignition (DSI) system which has internal
diagnostics. If ignition is not established after the first attempt, the heat circuit DSI
module will lock out until it is manually reset. To reset the DSI system, open and
close main door and restart dryer (press the “ENTER / START” key).
NOTE: During the purging period, check to be sure that all gas shut – off valves are open.
3) Once ignition is established, a gas pressure test should be taken at the gas 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 gas valve pressure tap)
Natural Gas….. 3.5-4.0 Inches Water Column
L.P. Gas………10.5-11 Inches Water Column
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.
Electric Models
Check the oven contactor(s) to insure that the electric oven is cycling properly.
Steam Models
J. PRE - OPERATIONAL TESTS
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