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

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88 • dap4 User Manual
AUTOMATIC FLUSH CYCLE for CHILLED WATER or HOT WATER COILS
If 100 hours elapses and the chilled water or hot water valve has not opened for normal cooling or
heating, the valve will automatically open for 30 seconds to flush the coil. The display module will
not display a message indicating the flush cycle is in progress.
HUMIDIFIER AUTO-FLUSH TIMER CONTRO L
1. Humidifier auto-flush timer is optional. The auto-flush timer is only available on units with infra-
red humidifiers.
2. The auto-flush timer is programmable (See Menu J – Factory Settings).
3. The auto-flush cycle takes 11 minutes. The sequence is as follows:
• For the first four minutes the drain solenoid is opened and humidification is inhibited (the
display module will have the following message: Humidification Inhibited by Auto-Flush).
Humidity related alarms are disabled.
• During the fifth and sixth minutes the solenoid is closed and the drain starts to fill
• From minutes seven through eleven the humidification is enabled and the pan continues
to fill. The Humidification Inhibited message is discontinued.
• After eleven minutes the humidity alarms are enabled
HUMIDITY ANTICIPATION
1. Humidity anticipation is programmable: ON or OFF (See Menu J – Factory Settings)
2. When set to ON, the humidity setpoint is automatically modified to reduce excessive humidifying
and dehumidifying.
• The humidity setpoint is decreased by 1% for 1.5°F the return air temperature rises
above the temperature setpoint. The maximum amount the humidity setpoint may be
decreased is 10% (15°F above the return air temperature setpoint).
• The humidity setpoint is increased by 1% for every 1.5°F the return air temperature falls
below the temperature setpoint. The maximum amount the humidity setpoints may be
increased is 10% (15°F below the return air temperature setpoint).
MANUAL OVERRIDE
When the manual override function is used, the automatic functions of the processor are disabled
and all desired functions must be changed to manual override. The display module will indicate
Manual Override.
TEMPERATURE and HUMIDITY SENSOR PROBLEM
1. A temperature sensor problem will activate all of the cooling stages if the unit is operating at the
time of the problem.
2. A humidity sensor problem will inhibit the humidification or dehumidification functions if the unit
is operating at the time of the problem.