PRODUCT DATA
® U.S. Registered Trademark
© 2004 Honeywell International Inc.
All Rights Reserved
63-2617
T7771A
Remote Temperature Sensor
GENERAL
The T7771A Remote Temperature Sensors are direct wired
wall modules for use with the Honeywell T7350 Commercial
Programmable Thermostat. The T7771A has a space
temperature sensor, LED pushbutton setpoint adjustment, and
override with LED.
FEATURES
• Pushbutton setpoint adjustment with LED indicators.
• Occupied/unoccupied override (bypass) with LED.
• L
ON
W
ORKS
® bus jack.
• Operating range 45 to 99°F (7 to 37°C).
IMPORTANT
• The T7771 compatibility with the T7350 only applies
to T7350 models with date code 0423 or later.
• To ensure the purchase of a compatible T7350, order
either:
— Y7355B1002 (consisting of: T7350B Thermostat,
T7771A and C7041B Sensors).
— Y7355D1008 (consisting of: T7350D Thermostat,
T7771A, C7041B Sensors).
SPECIFICATIONS
Construction:
Two-piece construction, cover and internally
wired subbase. Field wiring 14 to 22 AWG (2.0 to 0.34
sq. mm) connects to a terminal block in the subbase. Wall
module is activated by plugging into prewired subbase.
Mounting Options:
The T7771 can be mounted on a standard two by four inch
junction box or on a 60 mm diameter junction box.
Dimensions (H/W/D):
5-1/16 x 3-1/8 x 1 in. (128 x 80 x 25 mm).
Setpoint Adjustment:
The setpoint offset allows for ±3°F from the programmed
T7350 setpoint.
Environmental Ratings:
Operating Temperature: 45° to 99°F (7° to 37°C).
Shipping Temperature: -40° to 150°F (-40° to 65°C).
Relative Humidity:
5% to 95% noncondensing.
Temperature Sensor Operating Range:
45 to 99°F (10 to 37°C).
Temperature Sensor Accuracy
T7771A 20K Ohm Nonlinearized Sensor:
All T7771 models are furnished with a 20K Ohm nonlinear
NTC temperature sensor that follows a specific
temperature-resistance curve. See Fig. 1.
Sensor accuracy at 77°F is ±0.36°F (±0.2°C)
See form 63-7074 for detailed nominal temperature resistance
output in table form.
NOTE: In addition, a jumper allows for 10K Ohm output to
accommodate using multiple sensors for temperature
averaging applications with the T7350 Commercial
Thermostat. See the Wiring section for details.
