Data Aire DAP III User Manual

84
Problem Possible Cause Check or Remedy
Chilled Water valve does not
modulate
No call for cooling
Inhibited by no airfl ow alarm
Incorrect confi guration
Loose connection on plugs or cable
P13-1 and P13-2
Panel is operating in manual override
mode
Dehumidifi cation is inhibited by reheat
Check temperature setpoint and deadband
Correct no airfl ow alarm
Check settings in sub menu 5-7
Check connections. Use auto/manual water
valve manual override switch on the Control
Expansion Module to test the valve
Check manual override switches
Use manual diagnostic test sub menu 9-3 to
check.
Reheat does not come on No call for reheat
Inhibited by no airfl ow
Inhibited by humidifi cation
Loose connection on plugs or cable
P6-4, P10-2 and P10-3
F2 relay fuse on DAP-III is blown
Panel is operating in manual override
and the reheat override switch is not
ON
Faulty 1
st
stage reheat relay
Faulty 2
nd
stage reheat relay
Faulty 3
rd
stage reheat relay
Unit is not confi gured for reheat
Reheat thermal cutout switch
Check temperature setpoint and deadband
Correct no airfl ow alarm
Check settings in sub menu 5-5 and verify
the humidifi cation control logic
Check cable and connectors
Replace with 8 amp fuse
Check manual override switches
Use manual Test Relay test to check. Refer
to sub menu 9-3
Check settings in sub menu 5-5.
Check thermal cutout switch in reheat box
assembly
Humidifi cation does not
come on
No call for humidifi cation
Inhibited by no airfl ow
Incorrect confi guration
Inhibited by Humidity Anticipation
Check humidity setpoint and deadband
Correct no airfl ow alarm
Check setting in sub menu 5-6
Refer to Humidity Anticipation Logic. Check
sub menu 3-15 and 9-7

Data Aire DAP III Specifications

General

Brand	Data Aire
Model	DAP III
Category	Security System
Language	English