IBC AHU Series Installation And Operating Manual

4.2.2 Replacing the hot water coil unit
1.
Remove the two screws from the front cover, and set
aside.
2.
Carefully unclip the three
cables, and lean them away
from the hot water coil unit.
3.
Remove the nuts and bolts.
4.
Slide out the fan coil unit.
4.3 Temperature sensors
The resistance of the temperature sensors varies inversely with temperature. To test, measure the
temperature of the sensed environment and compare with the value derived from the measurement of the
resistance (obtained by connecting a good quality test meter capable of measuring up to 100 kΩ at the
controller end of the sensor lead).
To obtain a resistance reading, remove power to the boiler. Remove the wire leads by disconnecting their
respective Molex connectors from the sensor(s) in question. Place multi-meter probes into the sensor’s
female Molex connector socket. Do not apply voltage to the sensor - damage may result.
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4.2.2 Replacing the hot water coil unit

IBC AHU Series Specifications

General

Brand	IBC
Model	AHU Series
Category	Air Handlers
Language	English