Honeywell C7089A Owner's Manual
Honeywell C7089A Manual
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- Honeywell C7089A | Owner's Manual - Page 1
C7089A Outdoor Sensor APPLICATION INSTALLATION INSTRUCTIONS INSTALLATION The C7089 Outdoor Sensor is used with the PC8900 Perfect Climate Comfort Center™ Control System and the W8900 Remote Module. It senses the outdoor temperature for display on the PC8900 at the touch of a key. The sensor is - Honeywell C7089A | Owner's Manual - Page 2
the power supply before connecting the wiring to prevent electrical shock or equipment damage. Wiring must comply with applicable codes, ordinances and regulations. ᕡ Wire the C7089 Outdoor Sensor to the terminals marked OUT on the W8900 Remote Module. If the leadwire provided with the - Honeywell C7089A | Owner's Manual - Page 3
C7089 OUTDOOR SENSOR OPERATION The C7089 Outdoor Sensor converts outdoor ambient temperature to a resistance that the W8900 Remote Module can interpret. The W8900 Remote Module in turn sends a signal to the PC8900 where the outdoor temperature is displayed when the CHECK key is pressed. The C7089 - Honeywell C7089A | Owner's Manual - Page 4
/resistance curve of Fig. 3. CALIBRATION The C7089 Outdoor Sensor is calibrated in the factory and cannot be recalibrated in the field. PC8900 SYSTEM CHECK M7515 Fig. 4. Outdoor temperature display on the PC8900. Home and Building Control Honeywell Inc. 1985 Douglas Drive Golden Valley, MN
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INSTALLATION INSTRUCTIONS
®U.S. Registered Trademark
Copyright © 1995 Honeywell Inc.
•
All Rights Reserved
APPLICATION
The C7089 Outdoor Sensor is used with the PC8900
Perfect Climate Comfort Center™ Control System and the
W8900 Remote Module. It senses the outdoor tempera-
ture for display on the PC8900 at the touch of a key. The
sensor is encapsulated to protect against water and
contaminants, and includes 60 in. leadwires.
SPECIFICATIONS
Operating Ambient Temperature Range:
-40 to 128
°
F (-40 to 53
°
C)
Operating Relative Humidity:
5% to 95% noncondensing
Dimensions in inches (millimeters):
2-1/4 (57) x 3/8 (10) with 60 (1524) leadwires
C7089A Outdoor Sensor
INSTALLATION
When Installing this Product…
1
Read these instructions carefully. Failure to follow
them could damage the product or cause a hazard-
ous condition.
2
Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3
Installer must be a trained, experienced service
technician.
4
After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Disconnect power supply before connecting wiring
to prevent electrical shock or equipment damage.
Location and Mounting (Fig. 1)
Mount the sensor where:
•
setting can not be tampered with.
•
there is good air circulation.
•
it can measure the true outdoor ambient
temperature.
•
surface is flat.
•
the wire distance between the C7089 and W8900 is
less than 200 feet.
Do
not
mount the sensor:
•
in the direct sunlight.
•
where hot or cold air blows on the sensor. Discharge
line from an outdoor compressor unit, vent or fan will
cause inaccurate temperature readings.
•
where snow, ice or debris can cover it.
Use the following steps to mount the sensor:
1
Remove the sensor from the mounting clip.
2
Mark the area on the surface where the C7089
mounting clip will be mounted.
3
Mount the clip.
69-0896-1