![background image](http://html1.mh-extra.com/html/daikin/erq-series/erq-series_service-manual_4704486038.webp)
Basic Control
ESiEN09-06 A
28
Function
2.4
Outdoor Unit Fan Control in Cooling Operation
While in cooling operation, if the outdoor temperature is low, this mode provides high-pressure
control using the outdoor unit fan to retain appropriate liquid pressure, thus ensuring refrigerant
circulation rate to be supplied to AHU.
Upper limit of fan
revolutions: Step 8
Upper limit of outdoor unit
fan revolutions
Step 7
-1 step on
outdoor unit fan
+1 step on
outdoor unit fan
Pc
<2.75MPa
PI control
Pc
>3.24MPa
Lapse of 20 sec.
PI control
PI control
*For fan revolutions in each step,
refer to information on page 107.
Lapse of 20 sec.
Hold the
current step on
outdoor unit fan
Summary of Contents for ERQ Series
Page 2: ......
Page 16: ...Combination Table ESiEN09 06 A 6 General Information...
Page 17: ...ESiEN09 06 A Specifications 7 1 Specifications 8 1 1 Outdoor Units 8...
Page 33: ...ESiEN09 06 A Function general Function 23 1 2 Operation Mode...
Page 58: ...Outline of Control ESiEN09 06 A 48 Function...
Page 71: ...ESiEN09 06 A Wiring Diagram of Control Box Control Box EKEQ CBV3 61 3 2 F box...
Page 109: ...Test Operation ESiEN09 06 A 100 Test Operation 1 2 2 Turn power on...