Oxygen 8 SERENA - Furnace;Fan Coil;Heat Pump Interlock

Installation Manual Serena Series
Warning
Never connect a 120 volt AC circuit to the terminals of the furnace/fain-coil/heat pump interlock (Standard Wiring). Only use the
low voltage class 2 circuit.
3.1 Furnace/Fan Coil/Heat Pump Interlock
Low Voltage
+5
DAT
C
Speed
Contact
L0/HI
Speed
HV Input
Remote
0n/0ff
HV
NC
C
N0
Ext. Interlock
HIGH VOLTAGE
Low Voltage
+5
DAT
C
Speed
Contact
L0/HI
Speed
HV Input
Remote
0n/0ff
HV
NC
C
N0
Ext. Interlock
HIGH VOLTAGE
W R G Y
W
R
G
Y
C
FOUR WIRE
TWO WIRE
heating only
Cooling
System
THERMOSTAT TERMINALS
TWO WIRE
Low Voltage
+5
DAT
C
Speed
Contact
L0/HI
Speed
HV Input
Remote
0n/0ff
HV
NC
C
N0
Ext. Interlock
HIGH VOLTAGE
Low Voltage
+5
DAT
C
Speed
Contact
L0/HI
Speed
HV Input
Remote
0n/0ff
HV
NC
C
N0
Ext. Interlock
HIGH VOLTAGE
W R G Y
W
R
G
Y
C
FOUR WIRE
TWO WIRE
heating only
Cooling
System
THERMOSTAT TERMINALS
TWO WIRE
Standard Interlock Wiring
Alternate Interlock Wiring