3. Check Table 7 for pin number on 16-pin connector associated
with the Y/Y2 signal. The correct pin is #14. The far right
column shows that (-) 12vdc should be present between pin
#14 and pin #1 (common) on the 16-pin connector.
4. Set meter to read DC voltage. Place meter between pins #1
and #14 and check for (-) 12vdc (common side of meter on pin
#1). If signal is present, the problem is in the module or motor.
If signal is not, problem is either in wiring harness or Easy
Select Board.
These steps can be repeated for other modes of operation.
To check Easy Select Board:
1. Leave jumper wire in place between R and Y/Y2.
2. Check Table 7 under
″
Wiring Harness Connection to Easy
Select Board
″
column and row for pin #14 to see pin# on Easy
Select Board that should have voltage. The correct pin is #2.
The column on far right will show voltage that should be
present between pin #2 and #9 (or #10 common).
3. Place meter between pins #2 and #9 on Easy Select Board and
check for (-) 12vdc.
Fig. 18—Control Signals (Easy Select Board & 16-Pin Plug)
A00114
EASY SELECT
D
H
R
W
1
W
2
Y
1
Y/Y
2
G
O
C
HEATER/MOTOR
CEBD430226-01B CESS430226-01B
AUX HEAT KW/CFM
0-30
1075
SEC1
SEC2
J1
J2
AC/HP SIZE
036
030
024
018
AC
HP-COMFORT
HP-EFF
NOM
HI
ENH
LO
SYSTEM TYPE
AC/HP CFM ADJUST
ON/OFF DELAY
CONTINUOUS FAN
MED
HI
YEL
LO
AUX1
HUM1
AUX2
24VAC
GRY
HUM2
YEL
WHT
BLK
ORN
BLU
VIO
0-20
875
0-10
725
0
90
30
90
0
0
0-5
625
TM
J2 JUMPER – PULL FOR
HEAT STAGING
12-PIN CONNECTOR
(PL–1)
PIN 1
PIN 12
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
16-PIN PLUG
DEHUMIDIFICATION INPUT
24 VAC HOT
AUXILARY HEAT STAGE 1
AUXILIARY HEAT STAGE 2
LOW SPEED COMPRESSOR
SINGLE OR HI SPEED COMPRESSOR
FAN
REVERSING VALVE
COMMON
J1 JUMPER – PULL FOR
DEHUMIDIFICATION CONTROL
LOW VOLTAGE SCREW TERMINALS
Table 7—Wiring Connections of FK Fan Coil Wiring Harness
16-IN PLUG ON WIRING HARNESS TO MOTOR
WIRING HARNESS CONNECTION TO EASY SELECT BOARD
Pin # on 16-Pin Plug
Description
Pin 3 on 12-Pin Plug
or Set-up Selection
Wire Color
Signal on Pin with
Screw Terminal
Jumpered 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
0V (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.
15
