68-0139
36
W180 ZONE CONTROL SYSTEM
T7660A/T7660B SPACE TEMPERATURE SENSOR
NOTES:
1. All wiring must conform to local codes, ordinances,
and regulations.
2. Do not run space sensor wiring in the same conduit
with ac wires.
3. The maximum distance between the space sensor
and the controller is 300 ft [91m] using 18 AWG
thermostat wire. To reduce noise on the sensor wires,
use shielded cable with the shield connected to
ground on the controller only.
4. Mount the space sensor on an inside wall approxi-
mately 54 in. [1372 mm] from the floor (or where
specified) where it is exposed to the average space
temperature.
5. Do not mount the space sensor on an outside wall or
a wall containing water pipes or air ducts near the
space sensor.
6. Avoid locations that are exposed to discharge air
from registers or radiation from lights, appliances, or
the sun.
Install and wire T7660A/T7660B Space Temperature
Sensors as follows:
1. Mount the space sensor mounting plate on a wall,
mullion (1-7/8 in. [48 mm] wide minimum), or electrical
box (Fig. 39 and Table 10).
TABLE 10—MOUNTING ACCESSORIES.
Type
of
Mounting
230514
Adapter
Plate
230515/16*
Finish
Plate
230517
Black
Mounting
Ring
Direct to wall
—
—
—
2 x 4 inch
electrical box
X
X
—
2 x 4 inch
electrical box
with 230518
Plaster Ring
—
Optional
Optional †
4 x 4 inch
electrical box
with mud ring
X
X
—
4 x 4 inch
electrical box
with 230518
Plaster Ring
—
Optional
Optional †
* 230515 Black.
230516 Beige.
† Required only when plaster ring standoff extends from
wall surface.
Fig. 39—T7660A/T7660B Space Temperature Sensor mounting.
STANDARD
UTILITY
CONDUIT
BOX
+
GND
OUT
V
230514 ADAPTER
PLATE (NOT USED
WITH 230518
PLASTER RING)
MOUNTING PLATE
CIRCUIT BOARD
230516/17
FINISH PLATE
MOUNTING
PLATE
CIRCUIT
BOARD
230517 MOUNTING
RING (OPTIONAL)
P
P
4 X 4 UTILITY
CONDUIT BOX
FLANGES REMOVED FOR 2 X 4 MOUNTING
230518 PLASTER RING
SENSOR
SWITCH LED
ASSEMBLY (T7660B ONLY)
M9176
Содержание W180
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