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ESI Outdoor Unit Installation Instruction
05.2018
Manufacturer reserves the right to change at any time for specifications or designs without notice and incurring obligations.
14.4.3 Fan control
Start up control
Pressure control
Directive control
•
Cooling fan control by high pressure
•
Heating fan control by low pressure
Fixed speed in most cases
Standby after
getting start signal
MAX STEP
•
Cooling fan control by high pressure
•
Heating fan control by low pressure
14.4.4 Electronic expansion valve(EEV) control
Startup control
PI control
Directive control
•
Cooling: 480pls
•
Heating: Differential control
Fixed speed in most cases
Standby after
getting start signal
•
Cooling: 360pls
→
480pls
•
Heating: 360pls
→
0pls
•
Cooling: 480pls
•
Heating: Depending on the discharge
superheat.
[2ton/3ton/4ton/5ton-STEP/RPM]
STEP
RPM
STEP
RPM
0
0
6
830
1
350
7
880
2
450
8
930
3
550
9
980
4
680
10
1050
5
780
11
1100