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Manual 2100-416
Page 17
The unit rating plate lists a “Maximum Time Delay
Relay Fuse” or “HACR Type” circuit breaker that is to
be used with the equipment. The correct size must be
used for proper circuit protection, and also to assure that
there will be no nuisance tripping due to the momentary
high starting current of the compressor motor.
The disconnect access door on this unit may be locked
to prevent unauthorized access to the disconnect.
The field wiring connections are located behind the top
panel in the circuit breaker panel. The return air panel
must be removed first. This panel is equipped with a
door switch which shuts the unit down when it is
removed. The filter rack must be removed next.
WIRING – LOW VOLTAGE WIRING
230/208V, 1 PHASE AND 3 PHASE EQUIPMENT
DUAL PRIMARY VOLTAGE TRANSFORMERS
All equipment leaves the factory wired on 240V tap.
For 208V operation, reconnect from 240V to 208V tap.
The acceptable operating voltage range for the 240 and
208V taps are as noted in Table 3.
The Climate Control Option D is an electronic,
programmable thermostat. The subbase of the
thermostat is factory wired to the front panel of the unit.
Compatible for use with Energy Recovery Ventilator or
Economizer.
GENERAL
This unit is equipped with a variable speed ECM motor.
The motor is designed to maintain rated airflow up to
the maximum static allowed. It is important that the
blower motor plugs are not plugged in or unplugged
while the power is on. Failure to remove power prior
to unplugging or plugging in the motor could result in
motor failure.
NOTE: The voltage should be measured at the field
power connection point in the unit and while
the unit is operating at full load (maximum
amperage operating condition).
TABLE 3
OPERATING VOLTAGE RANGE
PATEGNAR
V042612-352
V802781-022
TABLE 4
WALL THERMOSTATS AND SUBBASE COMBINATIONS
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A/N
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CAUTION
Do not plug in or unplug blower motor connec-
tors while the power is on. Failure to do so
may result in motor failure.
FLUID CONNECTIONS
See Figure 1 for location of fluid connection.
Connection size is 1” FPT.
If the free blow plenum box is to be used, there are
knock outs in the top of the box that can be removed to
allow passage of the fluid piping.
All plumbing to and from the unit is to be installed in
accordance with local plumbing codes. The use of
plastic pipe where permissible is recommended to
prevent electrolytic corrosion of the fluid pipes.
It is strongly recommended that the fluid piping to the
unit be insulated to prevent water droplets from
condensing on the pipe surface.
The standard Climate Control Option X is a remote
thermostat connection terminal block. See Figure 17
for wiring diagram. Compatible thermostats are listed
in Table 4.