7
local electrical codes and emergency power proce-
dures. A 40-amp fused external listed disconnect box
with 8 AWG power cable is required for the models
22000ST and 33000ST. The listed disconnect must
be in close proximity to the Air Dryer and within
easy reach of the operator. Also, the disconnect must
be marked for the Air Dryer connected. A properly
sized switch or circuit breaker must be included in
the building installation. NOTE: Do not position
the Air Dryer so that it is difficult to operate the
disconnecting device.
For 22000ST..208-240V, 26.3-22.9A, 60Hz, 1 Ph
For 33000ST.208-240V, 23.9-21.9A, 60Hz, 3 Ph
A standard 115 VAC wall outlet is recommended
for oper ation of power tools, drop cord and for a
transfer controller.
5.2 Provide enough space for installation so that
there will be at least 24 inches (more is fine) at the
rear of the dehydrator for ventilation and access.
Allow at least 36 inches at the front and sides for
maintenance access.
5.3 A floor drain is needed to accept the ejected wa-
ter from the water drain fitting. Install the provided
water drain fitting using pipe sealant to the rear of
the cabinet. The drain should be within 75 feet of
the dehydrator. a 3/8-inch diameter plastic tube
needs to be connected to the water drain fitting and
routed to the water drain. The 3/8-inch water drain
tube may be routed over a wall or other obstacles
but it cannot be more than 15 feet above the water
drain outlet port at any time. The drain tube must
not be subjected to freezing or crimping.
5.4 The location should provide adequate space
and ventilation for heat dissipation. The preferred
ambient temperature range is 60
0
F to 90
0
F. Ambi-
ent humidity levels are of little consequence, but a
clean environment prolongs component life. Do
not place the air dryer where it may be subjected
to freezing.
5.5 The unit is practically vibration free and bolting
to the floor is not required. A level floor location
is recommended.
5.6 For models equipped with “Water Chiller” op-
tion only: The 1/4" NPT coolant water inlet and
coolant water outlet are clearly labeled, on the rear
of the cabinet. Make provision for the coolant water
supply and the coolant water drain outlet. The use
of rustproof brass quick connect, automatic shut-off,
couplings (available from Dielectric) together with
flexible hose is recommended. Provide safeguards
against crimping, freezing and drain-back as in-
structed in 5.3 above.
Note: The number references with parenthesis
throughout the remainder of the manual are the
Parts List item numbers and are also the reference
numbers found in pages 21 & 22.
6.0 INSTALLATION
6.1 Position the air dryer in accordance with the
recommendations of Paragraph 5.2.
6.2 Lift and Turn inward the two door latches and
remove the front panel.
6.3 A programmable delayed start time provides a
fixed minimum delay of five seconds, so that the
compressor sealing water will automatically prime
the compressor before each start sequence. If the
dehydrator is to be one of two or more operating at
the same time, the delayed start time on the second
dryer should be programmed with ten seconds of
delay. Go to MENU - SETUP - Power on Delay to
change delay. This will prevent power surges fol-
lowing service inter ruptions, or when switching to
or from an emergency generator. It is recommended
additional Air Dryers are separated by a minimum
of 5 seconds. See Section 8 for Setup Menu.
6.4 Install a flexible water drain hose as described
in paragraph 5.3. Hold the cabinet fitting with a
second wrench while tightening the tube fitting.
6.5 Make flexible tube connections to the high and
low pressure air outlet fittings (see fig.7 for loca-
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