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

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73 • dap4 User Manual
In DX mode, 2-cooling stages off as follows:
Cooling 2 off when dewpoint = High Dewpoint Setpoint - High Dewpoint DB - 0.0°F AND
Humidity Setpoint - Humidity Deadband - 0%
Cooling 1 off when dewpoint = High Dewpoint Setpoint - High Dewpoint DB - 0.2°F AND
Humidity Setpoint - Humidity Deadband - 1%
In DX mode, 4-cooling stages on as follows:
Cooling 1 on when dewpoint = High Dewpoint Setpoint- 0.6°F OR Humidity Setpoint - 3%
Cooling 2 on when dewpoint = High Dewpoint Setpoint - 0.4°F OR Humidity Setpoint - 2%
Cooling 3 on when dewpoint = High Dewpoint Setpoint - 0.2°F OR Humidity Setpoint - 1%
Cooling 4 on when dewpoint = High Dewpoint Setpoint - 0.0°F OR Humidity Setpoint - 0%
In DX mode, 4-cooling stages off as follows:
Cooling 4 off when dewpoint = High Dewpoint Setpoint - High Dewpoint DB - 0.0°F AND
Humidity Setpoint - Humidity Deadband - 0%
Cooling 3 off when dewpoint = High Dewpoint Setpoint - High Dewpoint DB - 0.2°F AND
Humidity Setpoint - Humidity Deadband - 1%
Cooling 2 off when dewpoint = High Dewpoint Setpoint - High Dewpoint DB - 0.4°F AND
Humidity Setpoint - Humidity Deadband - 2%
Cooling 1 off when dewpoint = High Dewpoint Setpoint - High Dewpoint DB - 0.6°F AND
Humidity Setpoint - Humidity Deadband - 3%
Chilled Water Dehumidification
Chilled Water valve opening
Chilled Water valve will open if dewpoint is increasing OR relative humidity is increasing closer
to the setpoints. Either high dewpoint or high relative humidity can cause the CW to open and
call for dehumidification. The modulation of the CW valve will be based on whichever has
higher demand for CW valve to open. For example, if dewpoint requires the CW valve to open
20% and humidity requires the CW valve to open 50%, as a result, CW valve will open 50%.
Individual logic for CW valve opening based on dewpoint and humidity is as followes:
CW valve modulation based on dewpoint
Dehumidification mode will start if return dewpoint rises to high_dewpoint_setpoint – 1.0°F;
after that, CW valve will:
Open 10% if return dewpoint = high_dewpoint_setpoint – 0.9°F
Open 20% if return dewpoint = high_dewpoint_setpoint – 0.8°F
Open 30% if return dewpoint = high_dewpoint_setpoint – 0.7°F
Open 40% if return dewpoint = high_dewpoint_setpoint – 0.6°F
Open 50% if return dewpoint = high_dewpoint_setpoint – 0.5°F
Open 60% if return dewpoint = high_dewpoint_setpoint – 0.4°F
Open 70% if return dewpoint = high_dewpoint_setpoint – 0.3°F
Open 80% if return dewpoint = high_dewpoint_setpoint – 0.2°F
Open 90% if return dewpoint = high_dewpoint_setpoint – 0.1°F
Open 100% if return dewpoint = high_dewpoint_setpoint
CW valve modulation based on humidity
Dehumidification mode will start if return_relative_humidity rises to humidity_setpoint –
1.0%; after that, CW valve will:
Open 10% if return_relative_humidity = humidity_setpoint – 0.9%