RCS TR60 Installation Manual

RCS

Model TR60

RS485 Thermostat

Installation Manual

DCN: 140-01761-01

3/21/09

*** IMPORTANT NOTICE ***

DO NOT USE THIS PRODUCT FOR BUILDING FREEZE PROTECTION! YOU ARE ADVISED TO

INSTALL A MECHANICAL FREEZE PROTECTION DEVICE ON YOUR SYSTEM FOR THIS PURPOSE.

TR60 Thermostat Installation

The TR60 thermostat is a two part thermostat with a Wall Display Unit (WDU) and a HVAC Control Unit.

TR60 Wall Display Unit

Model: TS60 Model: ZCV1

4 Wire

Thermostat wire or

Cat 5 wire

Install theTR60 Wall Display Unit (WDU) on the wall in the traditional thermostat location. The HVAC
Control Unit is typically installed at the HVAC mechanical system location, but it can be installed anywhere
in the wiring between the WDU and the HVAC system.

Wiring

Retrofit installations

The Wall Display Unit replaces the traditional thermostat. The existing thermostat wiring can be used (4
wires required). Install the TR60 WDU at the thermostat end and simply cut the cable at the desired
location of the HVAC Control Unit and connect it in the line. 4 wires are required between the WDU and
HVAC Control Unit and typically 5 wires are required between the HVAC Control Unit and the HVAC
system. Heat Pump and Multistage systems may require additional wires between the HVAC Control Unit
and the HVAC System. Consult your HVAC system wiring diagram.

New Construction

For new installations, prewire the thermostat location back to the mechanical HVAC system with either
thermostat wire, 5 conductor, (18-20ga) or Cat 5 cabling. The TS60 WDU wires to the HVAC Control Unit
with this cable. The HVAC Control Unit wires to the HVAC system with thermostat wiring, typically 5 wire,
18-20Ga. Heat Pump and Multistage systems may require additional wires between the HVAC Control
Unit and the HVAC System. Consult your HVAC system wiring diagram.

STOP

BEFORE REMOVING THE OLD THEMOSTAT! Write down connections!

Be sure to write down the existing wiring connections to the old thermostat. Label the wires with the
thermostat connection. Refer to these when connecting the HVAC Control Unit to the HVAC system.

Old Thermostat Terminal Marking Typical Wire Color Your Wire Color

C or B (24V common) Blue or Black
R (or RH for split heating systems) Red from heating system
RC (for split cooling systems) Red from cooling system
G Green
W or W1 White
W2 Brown
Y or Y1 Yellow
Y2 Black or Blue
O (heat pump system only) Orange
B (heat pump system only) Brown or Blue

Caution: Thermostat wiring color codes are not standardized beyond simple 5 wire systems. Do
not rely on the color of the wire to determine function. Check it and write it down!

TR60 HVAC Control Unit HVAC System

5 Wire

minimum

Thermostat

wire

DCN 140-01761-01 3/21/09

2

Wall Display Unit Installation

For retrofit installations, install the WDU at the existing thermostat location. You may reuse the existing
thermostat wiring (4 wires required).

For new installations, be sure to locate the WDU in a location for best temperature sensing in the area to
be controlled. Avoid these locations:

• Outside walls

• Drafty locations

• Direct sunlight exposure

• Near HVAC vents

• Corners or behind doors

Install the WDU

• Mark the location of the installation holes

• Install the screw anchors

• Run wiring through the back plate

• Install the back plate on the wall with the screws provided.

• Connect wiring to terminals. CAUTION! Double check your wiring. Mis-wiring the WDU can

result in damage to the unit.

• Write down the terminal wiring colors for connecting the WDU cable on the HVAC Control Unit
end.

WDU Wiring to HVAC Control Unit

Wall Display Unit

Back Plate

Model: TS60

Mounting holes

Control Unit

G
+V
C
D

Remote Sensor Connection

Two remote sensors can be connected to the TR60 Wall Display Unit.

• Sensor S1 will replace the internal sensor

• Sensor S2 will be averaged with the internal sensor

or Sensor S1 if attached

• Use only RCS 10K Thermistor style sensors

Remote Temp Sensors
Model RTS3 or RTS4

S2

S1

Note the wire color connections.

4 wire connection is required back
to the HVAC Control Unit. Existing
thermostat wiring can be used.

For new construction, thermostat
wire or Cat 5 wire can be used.

Remote sensor wiring is non-polarized.

Remote Sensors

S1
S1
S2
S2

HVAC Control Unit

WDU

G
+V
C
D

Model: ZCV1

Wall Display Unit

Back Plate

DCN 140-01761-01 3/21/09

3

HVAC Control Unit Installation

GND G

+12VDC +V

CLOCK C

DATA D

+12V

GND

DATA

CLK

can be used.

Location and Mounting

Install the HVAC Control Unit in a protected, convenient, indoor location near the HVAC system or in a
service accessible area such as an equipment closet or garage.

Mount the HVAC Control Unit in a vertical position on a wall or sturdy structural member. The unit may be
mounted on the HVAC system but care should be taken to avoid hot burner sections or high vibration
areas.

Wall Display Unit Connection

Wire specification: 4 conductor, 18/20Ga thermostat wire or 22Ga twisted pair or Cat 5 wire (preferred)

Connect the Wall Display Unit to the HVAC Control Unit by four wires. In retrofit applications, the existing
thermostat wiring may be used, however, for best results and in new construction, a Category 5 twisted
pair cable is recommended.

TR60 WALL DISPLAY UNIT

Standard Thermostat Wire or Cat 5 cable

Standard thermostat Wire color code
Ground: Green
12VDC: Red
Clock: Yellow
Data: White

Preferred Cat 5 Wire color code

Ground: Brown pair (twisted together)
12VDC: Blue Pair
Clock: Green Pair
Data: Orange Pair

CAUTION! Do not mis-wire the Wall Display Units – damage may result. Check the wiring before
applying power to the HVAC Control Unit.

TR60 HVAC CONTROL UNIT

WDU

Zone 1

Outside Temp Sensor Connection

Wire specification: 2 conductor, 22Ga twisted pair or Cat 3/5 wire (preferred)

Model OS5
Outside Temp Sensor

DCN 140-01761-01 3/21/09

Black
Red

Sensor wiring is not polarized.

4

TR60 HVAC CONTROL UNIT

S1

OS Sensor

S1