Instruction manual

Before proceeding with electrical connections, make certain that supply voltage, frequency, phase, and ampacity are as specified on the unit rating
plate. See unit wiring label for proper field high- and low-voltage wiring. Make all electrical connections in accordance with the NEC and any
local codes or ordinances that may apply. Use copper wire only.
The unit must have a separate branch electric circuit with a field-supplied disconnect switch located within sight from and readily accessible from
the unit.
On units with a factory installed disconnect with pull-out removed, service and maintenance can be safely performed on only the load side of the
control package.
WARNING: Field wires on the line side of the disconnect found in the fan coil unit remain live, even when the pull-out
is removed. Service and maintenance to incoming wiring can not be performed until the main disconnect switch (remote to
the unit) is turned off. Failure to do so will result in electrical shock causing personal injury or death.
A. Line Voltage Connections
Units installed without electric heat require the use of a factory-authorized Power Plug Kit (KFAPP0125PLG). This kit provides the electrical
connections necessary to supply the unit with 230-v power when electric heat is not present. This kit is required only on those applications which
do not use electric heat.
NOTE: It is not necessary to cover the opening for accessory heaters. The unit will perform properly with opening uncovered.
B. 24-v Control System
CONNECTION TO UNIT
Wire low voltage in accordance with the wiring label on the blower. (See Fig. 7, 8, 9, 10, and 11.) Use No. 18 AWG color-coded, insulated (35°C
minimum) wire to make the low-voltage connections between the thermostat, the unit, and the outdoor equipment. If the thermostat is located more
than 100 ft from the unit (as measured along the low-voltage wire), use No. 16 AWG color-coded, insulated (35°C minimum) wire. All wiring
must be NEC Class 1 and must be separated from incoming power leads.
Refer to outdoor unit wiring instructions for any additional wiring procedure recommendations.
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