Submittal Sheet

SPECIFICATION DATA
Put Bar Code Here
C7770, C7776, C7778
Air Temperature Sensors
GENERAL
The C7770A, C7776A, C7778A Air Temperature Sensors are
direct wired temperature sensors that are used to sense
discharge or return air in a duct. The C7770A Sensors
contains a temperature sensitive 20K ohm NTC nonlinearized
thermistor and are compatible with the Excel 10 controller.
The C7776As are 10 ohm NTC Type II sensors that are
compatible with TB7600, TB7300, and TB7200
communicating thermostats. The C7778As are 10 ohm NTC
Type III sensors that are compatible with WEBs-AX I/O
modules.
FEATURES
• Primary and/or secondary sensor for use with electronic
control systems.
• Integral 20K ohm NTC, 10K ohm NTC Type II, or 10K ohm
NTC Type III nonlinear sensors
• Operating range of 45 to 99°F (7 to 37°C).
• Mounts on a flat duct or plenum surface or, for a plenum-
rated application, in a standard utility conduit box.
• Probe length of 6 in. (152 mm)
• Rugged 1/4 in. diameter aluminum insertion probe.
SENSOR SELECTION
Table 1. C7770/C7776/C7778 Models
Model Description Termination
C7770A1006 6 in. duct probe,
20K ohm NTC
Non-linear Temperature
Sensor
8.5 in.
stranded wire
C7770A1040 6 in. duct probe,
20K ohm NTC
Non-linear Temperature
Sensor
6 ft. plenum
rated cable
C7776A1006
6 in. duct probe,
10K ohm NTC
Type II Temperature Sensor
8.5 in.
stranded wire
C7776A1040
6 in. duct probe,
10K ohm NTC
Type II Temperature Sensor
6 ft. plenum
rated cable
C7778A1006
6 in. duct probe,
10K ohm NTC
Type III Temperature Sensor
8.5 in.
stranded wire
C7778A1040
6 in. duct probe,
10K ohm NTC
Type III Temperature Sensor
6 ft. plenum
rated cable