Preparation For Operation / Start-Up; Preoperational Test - ADC AD-50V Installation Manual

Preparation for Operation / Start-Up _

The following items should be checked before attempting to
operate the dryer:
Read all "CAUTION," "WARNING," and "DIRECTION" labels
attached to the dryer.
Check incoming supply voltage to be sure that it is the same
as indicated on the dryer data label.
GAS MODELS – Check to ensure that the dryer is connected
to the type of heat/gas indicated on the dryer data label.
GAS AND ELECTRIC MODELS – The sail switch damper
assembly was installed and adjusted at the factory prior to
shipping. However, each sail switch adjustment must be
checked to ensure that this important safety control is
functioning.
Check bolts, nuts, screws, terminals, and fittings for tightness
and security.
GAS MODELS – Be sure that all gas shutoff valves are in
the open position.
Check all back guard panels and service box covers have
been replaced.
Check the lint drawer to ensure that it is closed and secured
in place.
Rotate the tumbler (drum) by hand to be sure it moves freely.
STEAM MODELS – Check to ensure that a clean, dry, and
regulated air supply (80 psi [5.51 bar]) is on the dryer (with
air-operated damper system only).
STEAM MODELS – Check to ensure all steam shutoff valves
are open.
STEAM MODELS – Check steam damper operation.
Check tumbler bearing setscrews to ensure that they are all
tight.
Check if vent is connected to the dryer and is exhausted to
the outdoors.

Preoperational Test __________________

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. Installer must instruct the
user on how to correctly operate the dryer before leaving.
Turn on electric power to the dryer.
Refer to the Operating Instructions for starting your particular
model dryer.
Gas Models Only
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 shutoff valves are open.
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NOTE: Gas model dryers are equipped with an ignition
system, which has internal diagnostics. If ignition is not
established after one time, the heat circuit in the ignition
module will attempt two more ignitions (total of 3 ignition
attempts). If there is no flame after the third ignition attempt
the module will lock out until it is manually reset. To reset
the ignition system, open and close the main door and restart
the dryer.
A gas pressure test should be taken at the gas valve pressure
tap of each dryer to ensure that the water column pressure is
correct and consistent.
NOTE: Water column pressure requirements (measured at
the pressure tap of the gas valve body):
Natural Gas ........ 3.5 in WC (8.7 mb)
L.P. Gas ............. 10.5 in WC (26.1 mb)
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.
Make a complete operational check of all safety related
circuits:
•
Door switch(es)
•
Hi-Limit thermostats
•
Cycling thermostat
•
GAS AND ELECTRIC MODELS ONLY – Sail switch
NOTE: The sail switch can be checked for proper operation
by opening the lint drawer. While pushing the lint drawer
switch in, start a drying cycle. The heating unit should not
activate (wait 30-seconds). If heat does activate, make
necessary adjustments to the sail switch.
Make a complete operational check of all operating controls.
NOTE: If computer program changes are required, refer to
the computer programming section of the manual supplied
with the dryer.
The dryer should be operated through one complete cycle to
ensure that no further adjustments are necessary and that
all components are functioning properly.
Tumbler Coating
The tumbler is treated with a protective coating. We suggest
dampening old garments or cloth material with a solution of
water and nonflammable mild detergent and tumbling them
in the tumbler to remove this coating.
Check the electric service phase sequence (3-phase [3ø]
models only). While the dryer is operating, check to see if
the blower wheel (impellor/fan) is rotating in the proper
direction. Looking from the front, the blower wheel (impellor/
fan) should spin in the clockwise direction. If it is, the phasing
is correct. If the phasing is incorrect, reverse two of the three
leads at connections L1, L2, and L3 of the power supply to
the dryer.
IMPORTANT: If the blower wheel (impellor/fan) is rotating in
the wrong direction, this will not only drastically reduce drying
efficiency, but it can also cause premature component failure.
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