Johnson Controls T600HPN-4 Installation Instructions Manual page 3

Wiring
When an existing thermostat controller is replaced,
remove and label the wires to identify the terminal
functions. When a T600HPx-4 or T600HPx-4+PIR
Series Thermostat Controller is replaced, simply
remove the old screw terminal blocks and reinsert them
onto the PCB of the replacement thermostat controller.
CAUTION: Risk of Electric Shock.
Disconnect power supply before making
!
electrical connections to avoid electric
shock.
CAUTION: Risk of Property Damage.
Do not apply power to the system before
!
checking all wiring connections. Short
circuited or improperly connected wires
may result in permanent damage to the
equipment.
IMPORTANT: Make all wiring connections in
accordance with local, national, and regional
regulations. Do not exceed the electrical ratings of
the T600HPx-4 or T600HPx-4+PIR Series
Thermostat Controller.
To wire the thermostat controller:
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.
Five-Pole
Left Top Connector
Y2 Y1 G RC
2 3 4
1
Seven-Pole Bottom Connector
AUX DI1 DI2 RS
10 11 12
Figure 5: Terminal Blocks
2. Carefully push any excess wire back into the wall.
Note: Seal the hole in the wall with fireproof material
to prevent drafts from affecting the ambient
temperature readings.
T600HPx-4 and T600HPx-4+PIR Series Heat Pump Thermostat Controllers Installation Instructions
Three-Pole
Right Top
C
Connector
5
RH W1 O/B
6 7 8
OS MS
Scom
13 14 15 16
3. Reinsert the screw terminal blocks onto the PCB.
Note: If multiple wires are inserted into the terminals,
be sure to properly twist the wires together prior to
inserting them into the terminal connectors.
4. For PIR models, carefully reattach the PIR
connector to the PCB.
5. Reattach the thermostat controller cover to the
mounting base (top side first).
6. Use a Phillips-head screwdriver to install the
security screw on the bottom of the thermostat
controller cover if desired. The security screw
comes packaged separately in a plastic bag with
the thermostat controller.
Table 1: Terminal Identification (See Figure 5.)
Terminal Terminal
Number Label
1 1
Y2
2 1
Y1
3 1
G
4 RC
5 C
6 RH
7 2
W1
8 O/B
10
1
AUX
11 DI1
12 DI2
13 RS
14 Scom
15 OS
16 MS
1. This terminal provides the voltage from RC through a
relay contact.
2. This terminal provides the voltage from RH through a
relay contact.
Function
Energizes Second-Stage
Compressor on a Call for
Heating or Cooling
Energizes First-Stage
Compressor on a Call for
Heating or Cooling
Energizes Fan in Accordance
with Selected Fan Mode
24 VAC from Equipment
Transformer
24 VAC (Common) from
Equipment Transformer
24 VAC for Auxiliary Heating
Energizes on a Call for Auxiliary
Heating
Reversing Valve; Energizes a
Valve on a Call for Heating or
Cooling
Auxiliary Output
Configurable Digital Input 1
Configurable Digital Input 2
Remote Room Temperature
Sensor
Sensor Common
Outside Air Temperature Sensor
Not Used
3