Operation Manual

T600HPx-3 Heat Pump Thermostats Installation Instructions 3
To wire the thermostat:
1. Strip the ends of each wire a 1/4 in. (6 mm) and
connect them to the appropriate screw terminals as
indicated in Figure 5.
2. Carefully push any excess wire back into the wall.
Seal the hole in the wall with fireproof material to
prevent drafts from affecting the ambient
temperature readings.
3. Reinsert the screw terminal blocks onto the PCB.
4. Reattach the thermostat cover to the mounting
base (top side first).
Note: Use a Phillips-head screwdriver to reinstall
the security screw on the bottom of the thermostat
cover.
Figure 5: Terminal Blocks
Y2
Y1 G RC
C
RH W1 O/B
Aux D1 D2 RS
Scom OS
MS
5 pole left top connector
3 pole right top connector
7 pole bottom connector
F
I
G
:
T
6
0
0
H
P
x
-
3
_
t
r
m
b
l
k
1
2
3
45
6
7
8
10 11 1
2
13
14
1
5
16
Figure 6: Wiring the T600HPx-3 Thermostats
AUX
D1
D2
Scom
OS
RS
If using the same power source
for the thermostat and heating
loads, install a jumper
across RC and RH.
Remote
Room
Sensor
Remote
Outdoor
Sensor
24 VAC
Thermostat Power
Aux
Heat
Y2 Y1
GRCC
RH W1 O/B
Aux
Fan
Comp 2
Comp 1
Rev
Valve
F
I
G
:
T
6
0
0
H
P
x
-
3
_
w
r
n
g
Isolated Contact
- Lighting
- On/Off Actuation
- Exhaust Fan
Table 1: Terminal Identification (See Figure 5.)
Number Label Function
1Y2Energizes second-stage compressor
on a call for heating or cooling.
2Y1Energizes first-stage compressor on
a call for heating or cooling.
3GEnergizes fan in accordance with
selected fan mode.
4RC24 VAC from equipment transformer
5C24 VAC (Common) from equipment
transformer
6RH24 VAC for auxiliary heating.
7W1Energizes on a call for auxiliary
heating.
8 O/B Reversing valve. Configurable to
energize a valve on a call for heating
or a call for cooling.
10 Aux Auxiliary output
11 DI1 Configurable Digital Input 1
12 DI2 Configurable Digital Input 2
13 RS Remote Room Temperature Sensor
14 Scom Sensor Common
15 OS Outdoor Air Sensor
16 MS Not Used