Disconnect all power to unit before servicing field wires or
removing control package. The disconnect (when used) on
access panel does not disconnect power to the line side of
disconnect, but does allow safe service to all other parts of
unit. If unit does not have a disconnect, disregard the
foregoing. Instead, make sure that a disconnecting means is
within sight from, and is readily accessible from, the unit.
Disconnect all electrical power to unit before performing any
maintenance or service on it. A failure to follow this warning
can cause electrical shock, fire, personal injury, or death.
The minimum maintenance requirements for this equipment are as
follows:
1. Inspect and clean or replace air filter each month or as
required.
2. Inspect cooling coil, drain pan, and condensate drain each
cooling season for cleanliness. Clean as necessary. An inspec-
tion port is provided on all A-coil delta plates. Remove plastic
plug to inspect.
3. Inspect blower motor and wheel for cleanliness each heating
and cooling season. Clean as necessary.
4. Inspect electrical connections for tightness and controls for
proper operation each heating and cooling season. Service as
necessary.
Consult fan coil service manual available from equipment distribu-
tor for maintenance procedures.
As with any mechanical equipment, personal injury can result
from sharp metal edges, etc, therefore, care should be taken
when removing parts.
Using Owner’s/User Manual furnished in outdoor unit, the install-
ing technician should explain system operation to the consumer
with particular emphasis on indoor fan coil operation sounds and
filter maintenance.
→ Table 7—Wiring Connections of FK Fan Coil Wiring Harness
16-PIN PLUG ON WIRING HARNESS TO MOTOR WIRING HARNESS CONNECTION TO EASY SELECT BOARD
Pin # on 16-Pin Plug Description
Pin # on 12-Pin Plug
or Set-up Selection
Wire Color
Signal on Pin with
Screw Terminal Jum-
pered to R*
1 Common Pin 9 on PL-1 Brown
2 W1 Auxiliary Heat Stage 1 Pin 7 on PL-1 Violet 24VAC**
3 Common Pin 10 on PL-1 Orange
4 On/Off Delay Selection On/Off Delay Selection White
5 AC/HP Size Selection AC/HP Size Selection Blue
6 Y1 Low Speed AC or HP Pin 3 on PL-1 Black (-) 12VDC**
7
AC/HP CFM Adjust
Selection
AC/HP CFM Adjust
Selection
Black
8 Not Used N/A Not Used
9 System Type Selection System Type Selection Orange
10 Dehumidify Pin 12 on PL-1 Gray 0 V (24VAC on no call)
11
Aux Heat Size
Selection
Aux Heat Size
Selection
Violet
12 24v AC Pin 8 on PL-1 Red 24VAC continuous
13 W2 Auxiliary Heat Stage 2 Pin 4 on PL-1 White 24VAC**
14 Y/Y2
Single Speed AC or
HP, High Speed
2-Speed AC or HP
Pin 2 on PL-1 Yellow (-)12VDC**
15 G Fan Pin 1 on PL-1 Green 24VAC**
16 Not Used N/A Not Used
* Check voltages with 16-Pin Plug disconnected from motor.
** These signals will start motor.
16
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