Table of Contents
Advertisement
WIRING – MAIN POWER
Refer to the unit rating plate and/or Table 2 for wire
sizing information and maximum fuse or "HACR Type"
circuit breaker size. Each unit is marked with a
"Minimum Circuit Ampacity". This means that the
field wiring used must be sized to carry that amount of
current. Depending on the installed KW of electric
heat, there may be two field power circuits required. If
this is the case, the unit serial plate will so indicate. All
models are suitable only for connection with copper
wire. Each unit and/or wiring diagram will be marked
"Use Copper Conductors Only". These instructions
MUST BE adhered to. Refer to the National Electrical
Code (NEC) for complete current carrying capacity data
on the various insulation grades of wiring material. All
wiring must conform to NEC and all local codes.
The electrical data lists fuse and wire sizes (75°C
copper) for all models, including the most commonly
used heater sizes. Also shown are the number of field
power circuits required for the various models with
heaters.
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.
FIGURE 14
COMPONENT LOCATION
ELECTRIC
HEATERS
THERMOSTAT
& HUMIDISTAT
CONTROLS
DEHUMIDIFICATION
CONTROL
The disconnect access door on this unit may be locked
to prevent unauthorized access to the disconnect.
See Start Up section for information on three phase
scroll compressor start-ups.
The field wiring connections are located behind the top
and hinged panel in the circuit breaker panel. See
Figure 14.
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.
NOTE: The voltage should be measured at the field
The standard Climate Control Option X is a remote
thermostat connection terminal block. See Figure 16 for
wiring diagram. Compatible thermostats are listed in
Table 4.
SIDE FIELD WIRE
The Climate Control Option E is an electronic,
ENTRANCE
programmable thermostat and a humidistat. The sub
base of the thermostat and the humidistat are factory
REMOTE
THERMOSTAT
wired to the front panel of the unit. See Figure 16A for
TERMINAL
wiring diagram. Compatible for use with Energy
BLOCK
Recovery Ventilator or Ventilator.
The Climate Control Option F is an electronic, non-
INDOOR
BLOWER
programmable thermostat, timer and a humidistat. The
sub base of the thermostat and the timer are factory
wired to the front panel of the unit. See Figure 16B for
wiring diagram. Compatible for use with Energy
Recovery Ventilator or Ventilator.
The Climate Control Option G is an electronic,
CIRCUIT BREAKER
PANEL &
non-programmable thermostat and humidistat. The
CONTROLS
subbase of the thermostat is factory wired to the front
panel of the unit. This option is compatible for use with
the optional CS2000A1 Energy Control Monitor and a
terminal block is provided for connection to the
LOWER
CONTROL
CS2000A1. See Figure 16C for wiring diagram.
PANEL
Compatible for use with Energy Recovery Ventilator or
Ventilator.
NOTE: On options X and G the CS2000A1 (or other
TABLE 3
OPERATING VOLTAGE RANGE
T
A
P
R
A
2
4
0
V
2
5
3
2
0
8
V
2
2
0
power connection point in the unit and while the
unit is operating at full load (maximum
amperage operating condition).
field provided means to control ventilation) must
be used if any of the mechanical (motorized)
ventilation options are installed.
N
G
E
–
2
1
6
–
1
8
7
Manual
2100-435F
Page
15 of 40
Advertisement
Table of Contents
Troubleshooting
