Honeywell W180 User Manual page 20

W180 ZONE CONTROL SYSTEM
gauge that will allow a minimum of 19 Vac to be
applied to the HVAC controls. Use isolating relays to
lower long loop current requirements.
l. Use UL Listed/CSA Approved cable to connect to
the 24 Vac power to the unit.
m. Do not run sensor or S321A Touchpad wires with
HVAC control switching wires.
Fig. 14—Wiring specifications.
18 AWG, THREE
TWISTED PAIRS,
SOLID OR
STRANDED, 600 FT
[180 M] MAX FOR
EACH S321A
TOUCHPAD
TOUCHPAD.
22 AWG WIRE
CAN BE
USED FOR
S321A
RUNS UP TO
TOUCHPAD
250 FT [76 M].
CONTROLLER
TO 24 VAC/40 VA
TRANSFORMER AND
EARTH GROUND
FOR POWERING
W180A CONTROLLER.
18 AWG, SOLID,
100 FT [30 M] MAX.
68-0139
S321A
HBUS
TOUCHPAD
S321A
W180A
CAUTION
To prevent damage to the equipment, do not con-
nect any voltage source greater than 24 Vac to any
circuit of the system.
T675A HIGH LIMIT CONTROLLER
18 AWG (MIN). SOLID OR STRANDED. TO BE WIRED IN SERIES WITH THE HEATING
CONTROL ON CONVENTIONAL FORCED AIR SYSTEMS.
HVAC EQUIPMENT
18 AWG (MIN). SOLID OR STRANDED. VERIFY THE NUMBER OF CONDUCTORS REQUIRED
TO OPERATE EACH HVAC UNIT. 100 FT [30 M] MAX. IF DISTANCE IS MORE THAN 100 FT
[30 M], CALCULATE WORST-CASE POWER CONSUMPTION, CABLELOOP RESISTANCE,
AND WIRE GAUGE TO ALLOW 19 VAC (MIN) TO BE APPLIED TO HVAC EQUIPMENT. USE
ISOLATING RELAYS TO LOWER LONG LOOP CURRENT REQUIREMENTS.
AOBD HONEYWELL/ TROL-A-TEMP RECTANGULAR DAMPERS
18-22 AWG, THREE CONDUCTORS, SOLID OR STRANDED, 1000 FT [300 M] MAX.
D635B-G ZONE DAMPERS
18-22 AWG, THREE CONDUCTORS, SOLID OR STRANDED, 1000 FT [300 M] MAX.
V8043A,B,E,F,J; V8044A,B,E MOTORIZED VALVES
18-22 AWG, TWO CONDUCTORS, SOLID OR STRANDED, 1000 FT [300 M] MAX. IF AN END
SWITCH IS USED, ADDITIONAL WIRES ARE REQUIRED TO POWER THE CIRCULATION PUMP.
C7130A WALL MOUNT ROOM TEMPERATURE SENSOR
T7660A SPACE TEMPERATURE SENSOR
18 AWG, TWISTED PAIR, SOLID OR STRANDED, 300 FT [90 M] MAX. 22 AWG WIRE CAN BE
USED FOR RUNS UP TO 150 FT [45 M]. DO NOT RUN WIRING WITH LOAD SWITCHING OR
POWER WIRES. USE SHIELDED CABLE FOR RUNS GREATER THAN 50 FT [15 M] TO MINIMIZE
ELECTRICAL NOISE ON SENSOR WIRES. ACCESSORY SHIELDED CABLES (FT [M]):
4074CAV, 50 [15]; 4074CAW, 100 [30]; 4074CAY, 200 [61].
C7180A FLUSH MOUNT TEMPERATURE SENSOR
18-22 AWG, TWISTED PAIR, SOLID OR STRANDED, 1000 FT [300 M] MAX. DO NOT RUN WIRING
WITH LOAD SWITCHING OR POWER WIRES.
T7660B SPACE TEMPERATURE SENSOR WITH OCCUPIED OVERRIDE
18 AWG, THREE TWISTED PAIRS, SOLID OR STRANDED, 300 FT [90 M] MAX. 22 AWG WIRE
CAN BE USED FOR RUNS UP TO 150 FT [45 M]. DO NOT RUN WIRING WITH LOAD SWITCHING
OR POWER WIRES.
198212CA OUTDOOR TEMPERATURE SENSOR
18 AWG, TWISTED PAIR, SOLID OR STRANDED, 300 FT [90 M] MAX. 22 AWG WIRE CAN BE
USED FOR RUNS UP TO 150 FT [45 M]. DO NOT RUN WIRING WITH LOAD SWITCHING OR
POWER WIRES. USE SHIELDED CABLE FOR RUNS GREATER THAN 50 FT [15 M] TO MINIMIZE
ELECTRICAL NOISE ON SENSOR WIRES. ACCESSORY SHIELDED CABLES (FT [M]):
4074CAV, 50 [15]; 4074CAW, 100 [30]; 4074CAY, 200 [61].
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M5597A