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C7770A/C7776A/C7778A AIR TEMPERATURE SENSOR
Wiring
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
CAUTION
Erratic System Operation Hazard.
Failure to follow proper wiring practices can
introduce disruptive electrical interference (noise).
Keep wiring at least one foot away from large inductive
loads such as motors line starters, lighting ballasts,
and large power distribution panels.
Shielded cable is required in installations where these
guidelines cannot be met.
Ground shield only to grounded controller case.
IMPORTANT
1. All wiring must agree with applicable codes,
ordinances and regulations.
2. Do not mount sensor in incorrect environment.
3. Wire according to the applicable controller
instructions.
4. Erratic temperature readings from a sensor can be
caused by improper wiring practices. These must
be avoided to assure proper operation:
•Avoid poor wiring connections.
•Avoid intermittent or missing building earth ground.
•Do not mount sensor in incorrect environment.
Connect the low voltage wiring from the sensor to the
appropriate controller terminals using wirenut connectors (not
provided) as shown in Fig. 2 and 3.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
SENSOR
PROBE
TO
APPROPRIATE
SYSTEM
COMPONENTS
M17962
Fig. 2. Mounting C7770A/C7776A/C7778A Air Temperature
STANDARD UTILITY
CONDUIT BOX
CONNECTOR
LOCKNUT
AND
CONDUIT
TO APPROPRIATE
SYSTEM
COMPONENTS
Fig. 3. Mounting C7770A/C7776A/C7778A Air Temperature
Sensor in a standard conduit box.
® U.S. Registered Trademark
© 2011 Honeywell International Inc.
95-7557—04
M.S. Rev. 07-11
Printed in U.S.A.
SYSTEM DUCT
OR PLENUM
NO. 8 (4mm)
MOUNTING SCREWS
(NOT PROVIDED)
FLANGE
CONNECT SENSOR
WIRES WITH TWO
WIRENUT CONNECTORS
(NOT PROVIDED)
Sensor on duct or plenum.
SENSOR
FLANGE
PROBE
SYSTEM
CONNECT SENSOR WIRES
DUCT OR
WITH TWO WIRENUT
PLENUM
CONNECTORS (NOT PROVIDED)
NO. 8 (4mm)
MOUNTING
SCREWS (NOT
PROVIDED)
BLANK
FACEPLATE
(OPTIONAL)
M17963
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