Thermostat Connection - GE UUY24ZGDA Instructions D'installation

Installation Instructions
Thermostat Connections
ATTENTION: Thermostat must energize reversing valve in heat mode using the "B" terminal.
Power
L1
L2
G
G
Note:
1. Please refer to the installation manual to see whether the unit can connect to electric heat.
2. Connect power supply to W14(BK) and W15(WH) of X1 when not using electric heat assemblies.
3. Connect power supply to the electric heater circuit breakers when using electric heat.
4. The primary input voltage of transformer is defaulted at 230V(BK). When switching the power supply of the complete unit to 208V,
connect the primary input voltage of transformer to 208V(BU), which can be realized by exchanging the black wire and the blue wire.
5. 1 Only applicable for the unit whose motor has a ground wire.
16
W14
W15
XT1
W3
1
W1
W4
N 2
W2
XT2
W13
D
X1 X2
W6 W7
B W11
X10
W12
W1
W8
X4
R
W9
X3
C
W10
G
TC
WH
YE
NOTE: Y means Compressor control signal for the outdoor unit;
B which is energized under the heating mode means 4-way valve control signal;
D means defrosting signal;
R means 24V AC power supply;
C means 24V common;
G means indoor unit fan signal for the indoor unit;
W1 means heater control signal.
NOTE: For cooling only unit, there is no need to connect the B and D terminals.
NOTE: When the ODU is defrosting ,D will send operation signal
NOTE: When the electric heating operate, the indoor unit is forced to open the indoor
unit fan.
L1 G
CB1 G
X1
1 2 3 4 5 6
W5
5KW/8KW/10KW HEAT KIT
20K
Tube
TUBE temperature
sensor
CN5
CN7
AP1
JUMP
RD
M
Fan
X9 X13X7
BK
motor
YEGN
XT3
1
①
BU
G
BK
RD
L2
HEAT
CB1
X1
Code Name
CB1 Circuit breaker
Code Name
Code Name
TC Transformer
TC Transformer
XT1~XT3 Wiring Board
XT1~XT3 Wiring Board
D Defrosting Signal
D Defrosting Signal
B 4-way Valve Control
B 4-way Valve Control
Signal, energized under
Signal, energized under
the heating mode
the heating mode
XT1-1
W1 Heater Control Signal
W1 Heater Control Signal
R 24V AC Power Supply
R 24V AC Power Supply
XT1-2 C 24V Common
C 24V Common
G Indoor Unit Fan Signal
G Indoor Unit Fan Signal
31-5000486 Rev. 4