ECOSAIRE EN Series, Owner'S Manual

Page: 98 / 142

Owners Manual Ecosaire
®
EN Series Precision Air Conditioner
Ecosaire ® July 2009 94
Data subject to change without notice.
Controller Diagnostics Operation
*** ALARM ***
00:00 00/00
High Room
Temperature
*** ALARM ***
00:00 00/00
Low Room
Temperature
CHECKS
1. Check temperature of return air
with a known good thermometer.
2. Check for unexpected loads such
as open doors and windows, new
electrical equipment, more people
than usual, etc.
3. Check resistance of sensor and
cable.
1. Check humidity with a known
good psychrometer.
2. Check for unexpected loads such
as open doors and windows, new
electrical equipment, more people
than usual, etc.
CORRECTIONS
•
If controller does not agree with known good
thermometer, contact factory for corrective
measures.
•
If room temperature is too high or too low, check
and adjust temperature set point.
•
Correct as necessary.
•
If the cable continuity is correct but the sensor
resistance does not correspond to that shown in
the chart for the known temperature, the sensor
must be replaced.
•
If controller does not agree with known good
psychrometer, contact factory for corrective
measures.
If the sensor is outside the ±10% calibration
range, it must be replaced.
•
If room humidity is too high or too low, check and
adjust humidity set point.
*** ALARM ***
00:00 00/00
High Room
Humidity
*** ALARM ***
00:00 00/00
Low Room
Humidity
OPERA
TION