DCN: 141-00930-07 09/06/04
16
TR16 Control Unit Installation
Location and Mounting
Install the TR16 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 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 the hot burner section or high vibration areas.
Control unit wiring
The TR16 HVAC Control Unit is connected to the HVAC system and to the Wall Display Unit as well as the
serial communications and power connections.
Control Unit to WDU wiring
Connect the WDU to the Control Unit with existing thermostat wiring in retrofit installations. For new installs,
22/24 GA twisted pair, typically Cat 3 or Cat 5 wiring is preferred.
Control Unit to HVAC System wiring
Electrically, the Control Unit looks like a standard thermostat to your HVAC system. All connections to the
HVAC system are made at the normal thermostat connections on the HVAC unit.
You are advised to refer to your HVAC system’s documentation for specific information on its thermostat
connections and setup requirements. You must know the following:
1. HVAC system type: Gas, Electric, or Heat Pump
2. Fan requirement: No fan with Heat or Fan with Heat
3. For Heat Pump systems: Changeover with cool or with heat. (O or B connection)
Note on retrofit wiring
. You may note (and be sure to note on the wiring form) that you have additional
wires when you disconnect your old thermostat. Usually these wires are for auxiliary functions such as filter
or trouble indicators. For Heat Pump systems there may be emergency heat (EH) wiring or both O and B
changeover connections. These wires are not used in the TR16 installation and, in most cases, these extra
wires are not required for normal HVAC system operation.
WDU
+12V
GND
D
C
J1
GND G
+12VDC +V
CLOCK C
DATA D
TS16
Control Unit
Содержание TR16
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