Installation manual

15
PREMIER INSTALLATION MANUAL
Electronic Thermostat Installation
Position the thermostat subbase against the wall so that it is level and the thermostat wires protrude through the middle of
the subbase. Mark the position of the subbase mounting holes and drill holes with a 3/16-inch bit. Install supplied anchors and
secure base to the wall. Thermostat wire must be 8-conductor 18 AWG wire. Strip the wires back 1/4-inch (longer strip lengths
may cause shorts) and insert the thermostat wires into the connector as shown. Tighten the screws to insure tight connec-
tions. The thermostat has the same type connectors, requiring the same wiring. See instructions enclosed in the thermostat
for detailed installation and operation information.
Figure 16: Thermostat Wiring
P4
OnOff
SW1
240V - L2
240V - L1
F
used L2
F
used L2
Fused L2
F1
F1
R
R
24
0V - L2
240V - L1
C
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
P5
Fused L2
Fused L1
N.O.
CR4-
Com
CC
CC-GND
CCLO
CCHI
123
P3
1
OnOff
SW2
2
3
4
5
6
7
8
1
OnOff
SW3
2
3
4
5
P1
1
2
3
4
5
68
2
34
5
67
1
P2
123
N.O.
CR3-
Com
N.C.
CR2- Loop
Pump
N.O.
CR1- DHW
Pump
N.O.
1
2
3
4
5
6
7
8
9
10
11
12
ACC
COM
ACC
NC
ACC
NO
SL2
Out
SL2
IN
SL1
Out
SL1
IN
CC
Shut
Down
C LRY1Y2 GOW
7
Microprocessor
Notes: DIP switch SW2-#8 is required to be in the “OFF” position for the control to recognize the 24VAC thermostat inputs.
The second stage compressor wire must be installed between the unit and the thermostat for proper control operation. SW3-
2 “OFF” to be used with zoned systems. SW3-2 “ON” to be used for unzoned systems. SW3-4 “OFF” is used with ECM and
17P501A01 Electric Heat board. SW3-4 “ON” is used with ECM2 and 17P514A01 Electric Heat board.
R
Y1
C
W
O
G
L
24VAC (Hot)
24VAC (Common)
Compressor (1st Stage)
Aux. Heat
Reversing Valve
Blower Relay
System Monitor
Microprocessor Controlle
r
Thermostat Connection
Y2
Compressor (2nd Stage)
Figure 17: Logic Board Physical Layout