Data Aire dap4 touch, Инструкция по установке, эксплуатации и обслуживанию

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93 • dap4 User Manual
4. The alarm will prevent the unit from operating until the alarm condition is corrected (condensate
pump is checked and its float switch is open).
FAN MOTOR OVERLOAD ALARM
1. The fan motor overload is optional and requires a motor overload relay contact for each motor.
2. The alarm is programmable (See Menu …….)
3. The audio is activated and a “Blower Overload” message is displayed on the display module.
4. The alarm is a warning only and will not prevent any of the unit functions from operating.
5. The alarm will remain until the alarm condition is corrected.
NO WATER FLOW ALARM ACTION
1. The no water flow alarm is optional and requires a field provided and installed flow switch.
2. The no water flow alarm action is programmable (See Menu K – Alarms and Limits).
3. The audio alarm is activated and a “No Water Flow – Check Pump” message will be displayed
on the display module.
4. The alarm can be set as a warning and will not prevent any of the unit functions from operating
or it can be set to lockout the compressor(s). All other functions continue and manual reset is
required.
5. The alarm will remain until the alarm condition is corrected.
NO WATER FLOW ALARM ACTION – CHILLED WATER UNITS
1. The dap4 controller will not detect the no water flow alarm unless the chilled water valve posi-
tion is at least 60% open.
2. If the valve opens 60% or more, the no water flow alarm detection will be displayed for the
amount of delay set in Menu K (Alarms and Limits). The programmable range is from 5 to 180
seconds in 1 second increments.
3. A “No Water Flow – Check Pump” message will be displayed on the display module and the
alarm contacts will close when a no water flow alarm is detected.
NO WATER FLOW ALARM ACTION – DX COOLING UNITS
1. The dap4 controller will only detect the no water flow alarm when the unit calls for cooling.
2. Each time the cooling stage starts, the no water flow alarm detection will be displayed for the
amount of time that is set in Menu K (Alarms and Limits). The programmable range is from 5 to
180 seconds in 1 second increments. The factory setting is 5 seconds
3. If the “Action” is set (See Menu K – Alarms and Limits) to “Compressor Lockout”, when a no
water flow alarm is detected, the compressor(s) will be inhibited for 5 minutes and a “No Water
Flow Check Pump: Compressor Lock-out” message will be displayed on the display module.