Carrier 50YEV - ECM Blower Control

25
Residential Packaged Units - 60Hz Puron
®
Rev.: 4 Jan., 2012
ECM Blower Control
Table 5: ECM Board Tap Settings
Y
GGGGR
W
O
Y2
Y1
G
R
C
Y2
Y1
G
O
W
C
R
DH
AL1
A
A
AL1
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
SW9
OFF
ON
G
DEHUM
CFM
TB1
J1
S1
Thermostat
Input LEDs
CFM Counter
1 flash per 100 CFM
ECM Motor
Low Voltage
Connector
1/4" Spade
Connections
to CXM or
DXM Board
Thermostat
Connections
Dehumidification
LED
Fan Speed Selection DIP Switch
J01
AL AL
A
GY1Y2OW1EMC R
G
Y1
Y2
OW1EM
NC C R
Hum
3
2
1
4
3
2
1
4
3
3
2
1
2 2
1
4
3
2
1
4
56
78910
L
LED's
TB01
CFM
Dehumid
Norm
Norm
Te st
(–)
(+)
CFM
Adjust
Aux
CFM
HP
CFM
Delay
1/4" Spade
Connections
to CXM or
DXM Board
Thermostat
Input LEDs
CFM Counter
1 flash per 100C
F
ECM Motor
Low Voltage
Connector
Dehumidification
LED
Fan Speed Selection Jumpers
Thermostat
Connections
Figure 26a: ECM Version II Interface Layout
Figure 26b: ECM Version I Interface Layout
Figure 26c: ECM Version III Interface Layout
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