11
WIRING
Recommended Connection Method for Power and
Communication Wiring (To minimize communication wiring
interference)
Power Wiring:
The main power is supplied to the outdoor unit. The field supplied
connecting cable from the outdoor unit to indoor unit consists of
three (3) wires and provides the power for the indoor unit. Two
wires are high voltage AC power and one is a ground wire.
Consult your local building codes and the NEC (National
Electrical Code) or CEC (Canadian Electrical Code) for special
requirements.
All wires must be sized per NEC or CEC and local codes. Use
Electrical Data table MCA (minimum circuit amps) and MOCP
(maximum over current protection) to correctly size the wires and
the disconnect fuse or breakers respectively.
Per caution note, only copper conductors with a minimum 300 volt
rating and 2/64- inch thick insulation must be used.
Communication Wiring:
A separate shielded copper conductor only, with a minimum 300
volt rating and 2/64- inch thick insulation, must be used as the
communication wire from the outdoor unit to the indoor unit.
To minimize voltage drop, the factory recommended wire size is
14/3 stranded with a ground. In special cases where there is high
electrical interference, please use a separate shielded 16GA
stranded control wire.
Alternate Connection Method for Power and Communication
Wiring (May not prevent communication wiring interference)
The main power is supplied to the outdoor unit. The field
supplied connecting cable from the outdoor unit to indoor unit
consists of four (4) wires and provides the power and
communication signals for the indoor unit. Two conductors are for
power wiring (L1/L2, or L/N), one is a ground wire, and one is a
DC communication wire.
Consult your local building codes and the NEC (National
Electrical Code) or CEC (Canadian Electrical Code) for special
requirements. All power wires must be sized per NEC or CEC and
local codes. Use Electrical Data table MCA (minimum circuit
amps) and MOCP (maximum over current protection) to correctly
size the wires and the disconnect fuse or breakers respectively.
Per caution note, only copper conductors with a minimum 300 volt
rating and 2/64- inch thick insulation must be used.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S
Wires should be sized based on NEC and local codes.
S
Use copper conductors only with a minimum 300 volt
rating and 2/64 inch thick insulation.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S
Be sure to comply with local codes while running wire
from indoor unit to outdoor unit.
S
Every wire must be connected firmly. Loose wiring
may cause terminal to overheat or result in unit
malfunction. A fire hazard may also exist. Therefore,
be sure all wiring is tightly connected.
S
No wire should be allowed to touch refrigerant tubing,
compressor or any moving parts.
S
Disconnecting means must be provided and shall be
located within sight and readily accessible from the air
conditioner.
S
Connecting cable with conduit shall be routed through
hole in the conduit panel.
The main power is supplied to the outdoor unit. The field supplied
connecting cable from the outdoor unit to indoor unit consists of
four wires and provides the power for the indoor unit as well as the
communication signal between the outdoor unit and indoor unit.
Two wires are high voltage AC power (L1 and L2), one is a
ground wire, and one is a DC communication wire.
CONTROL SYSTEM
The 619P unit is equipped with a microprocessor control to
perform two functions:
1. Provide safety for the system
2. Control the system and provide optimum levels of comfort
and efficiency
The main microprocessor is located on the control board of the
fan coil unit (outdoor units have a microprocessor too) with
thermistors located in the fan coil air inlet and on the indoor coil.
Heat pump units have a thermistor on the outdoor coil. These
thermistors monitor the system operation to maintain the unit
within acceptable parameters and control the operating mode.
WIRELESS REMOTE CONTROL
Fig. 7 – Wireless remote control
1. A wireless remote control is supplied for system operation
for system operation of all high- wall units.
2. Each battery operated wireless (infrared) remote control
may be used to control more than one unit.
WIRED REMOTE CONTROL (OPTIONAL)
P/N KSACN0101AAA
1. Optional wired remote controller used
for system operation of all high- wall
units.
2. Kit includes a wired remote controller
and a connecting cable.
3. Connect with wire terminal between
remote controller and indoor unit.
4. Display in
_
F or
_
C and temperature
increments every 1
_
F or every 1
_
C.
Fig. 8 – Wired Remote Control
