4
B3BV
Minimum Circuit
Maximum Over-Current
Ampacity
Protection
Circuit
Circuit
Single
Circuit
Circuit
Single
Model #
Voltage
KW
A
B
Circuit
A
B
Circuit
15 KW
240
14.4
55.0
25.0
80.0
60.0
30.0
90.0
20 KW
240
19.2
55.0
50.0
105.0
60.0
50.0
125.0
Table 2. Electrical Data
cations. Remove the single circuit adaptor
kit cover and verify that the lugs are config-
ured correctly for the application. If the
lugs are not configured for the application,
refer to the instructions included with the
kit and modify the configuration. Install the
single circuit adaptor kit (if used) in the line
side (“on” end) of the circuit breakers.
Tighten the lugs securely (45 in-lbs rec-
ommended).
Connect the supply wiring to the circuit
breakers, single circuit adaptor kit, or ter-
minal block. Tighten the lugs securely.
When using dual supply circuits verify that
the supply sized for circuit “A” is connected
to the circuit breaker that is connected to
the top element assembly.
Replace metal circuit breaker line cover.
Refer to Figure 2 for thermostat wiring
examples.
A/C or H/P COIL INSTALLATION
Approved air conditioning and heat pump
system components are listed on the unit
nameplate.
To install the indoor coil:
1.
Remove door cover plate, door and
coil close-off plate (with insulation).
Discard door cover plate.
2.
For upflow applications slide the coil
into the track located in the bottom of
the unit.
3.
For downflow applications the down-
flow adaptor (see Table 1) must be
used. Install the downflow adaptor
and coil as directed in the instructions
included with the kit.
4.
Reinstall the door and coil close-off
plate (with insulation). NOTE: In
downflow applications the door is ro-
tated 180° so that the refrigerant and
condensate lines remain on the left
side.
5.
Install the refrigerant and condensate
lines as directed in the instructions
included with the outdoor unit.
MOTOR SPEED SELECTION
The blower speed is preset at the factory
for operation at the same speed for heat-
ing and cooling. For optimum system per-
formance and comfort, it may be neces-
sary to change the factory set speed. To
change the blower speed, disconnect all
electrical power to the unit and remove the
upper door. Connect the black wire from
the motor to the desired blower speed
marked on the terminal block of the blower
motor. Terminal 4 = High Speed, Terminal
5 = Med Speed and Terminal 6 - Low
Speed.
Replace the upper door and secure it to
the unit. Restore power to the unit.
High speed operation is required when
using a 20 kw electric heater kit in a
downflow application.
