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CATEGORY 5 (4-PAIR TWISTED)
COMMUNICATION WIRE
INSTALLATION TIP: USE A
PIECE OF TAPE TO
IDENTIFY WHICH
THERMOSTAT EACH CABLE
IS RUN TO
ZONE DAMPERS
2-WIRE
THERMOSTAT
CABLE
MODEL 8027 PLUG-IN
TRANSFORMER
(FOR COMMUNICATION SYSTEM)
2-WIRE THERMOSTAT CABLE
SEE ZONE CONTROL SYSTEM
INSTALLATION LITERATURE
FOR COMPLETE ZONE
SYSTEM WIRING
REQUIREMENTS
SINGLE ZONE
HVAC EQUIPMENT
DISTRIBUTION PANEL
USE 2-WIRE THERMOSTAT
CABLE TO CONNECT OFF-
BOARD SENSORS SUCH AS
THE MODEL 8051 FLUSH
MOUNT SENSOR TO
SUPPORT MODULES.
SUPPORT MODULE
THERMOSTAT 3
THERMOSTAT 4
THERMOSTAT 2
THERMOSTAT 1
ZONE CONTROL SYSTEM
RX TX
DATA
RS-232
RX TX
ENABLE
RS-485
RX TX
DATA
RS-485
POWER
Model 8811 Protocol Adapter
Power
7.5VAC RS-485 RS-485 RS-232
4000 FT.
MAX.
4000 FT. MAX.
4000 FT. MAX.
4000 FT. MAX.
4000 FT.
MAX.
1000 FT.
MAX.
NOTE: TOTAL DISTANCE FROM
PROTOCOL ADAPTER TO THERMOSTAT
NOT TO EXCEED 4,000 FEET
THERMOSTAT CABLE
5 thru 8 CONDUCTOR
ILLUSTRATION 2 – Run Wire For System
3
RUN THE REQUIRED WIRES
(SEE ILLUSTRATION 2)
Step 3
1. Run thermostat cable from each thermostat to the
appropriate HVAC system or zone control panel. Use 4
through 8-conductor thermostat cable depending on the
type of equipment and number of equipment stages. Run
one more wire than would be required if connecting to a
mechanical thermostat.
❖ If you are using remote temperature or humidity
support modules as part of your installation, now is the
time to run the additional wires for these items. A
separate Category 5 cable must be run from thermostat
to support module.
2. At the HVAC/zone control system, use a piece of tape to
✍
label the location of the thermostat on the cable as you go.
3. Run Category-5, 4-pair twisted cable (8-conductor) from
each thermostat to the Distribution Panel.
4. At the Distribution Panel, use a piece of tape to
✍
label
the location of the thermostat on the cable as you go.
5. Run Category-5 wire from the Distribution Panel to the
Protocol Adapter. If more than one Distribution Panel is
used, run Category-5 wire between each panel.
6. Run two-conductor thermostat cable from the
Model 8027 Transformer to the Distribution Panel. You
can use Category-5 wire, but you must use one pair of
wires per terminal.