56
7
Option switches & function keys
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
K1
K2
K3
K4
LED display alphabet
SEG 1 SEG 2 SEG 3 SEG 4
K1 Key function Display LED
Push 1
st
time Refrigerant charging in heating operation “K” “1” “BLANK” “BLANK”
Push 2
nd
time Test run in heating mode “K” “2” “BLANK” “BLANK”
Push 3
rd
time Pump out operation in heating mode (Outdoor unit’s address : NO 1) “K” “3” “BLANK” “1”
Push 4
th
time Pump out operation in heating mode (Outdoor unit’s address : NO 2) “K” “3” “BLANK” “2”
Push 5
th
time Pump out operation in heating mode (Outdoor unit’s address : NO 3) “K” “3” “BLANK” “3”
Push 6
th
time Pump out operation in heating mode (Outdoor unit’s address : NO 4) “K” “3” “BLANK” “4”
Push 7
th
time Open all valve of outdoor unit for vacuum preparation (Outdoor unit’s address : NO 1) “K” “4” “BLANK” “1”
Push 8
th
time Open all valve of outdoor unit for vacuum preparation (Outdoor unit’s address : NO 2) “K” “4” “BLANK” “2”
Push 9
th
time Open all valve of outdoor unit for vacuum preparation (Outdoor unit’s address : NO 3) “K” “4” “BLANK” “3”
Push 10
th
time Open all valve of outdoor unit for vacuum preparation (Outdoor unit’s address : NO 4) “K” “4” “BLANK” “4”
Push 11
th
time
Open all valve for vacuum preparation (Total outdoor units, indoor unit and MCU units)
“K” “4” “BLANK” “4”
Push 12
th
time Return to normal view mode -
K2 Key function Display LED
Push 1
st
time Refrigerant charging in cooling operation “K” “5” “BLANK” “BLANK”
Push 2
nd
time Test run in cooling mode “K” “6” “BLANK” “BLANK”
Push 3
rd
time Pump down operation in cooling mode (All outdoor units) “K” “7” “BLANK” “BLANK”
Push 4
th
time
Pipe checking (Check whether the pipe connection of MCU correspond with indoor unit’s
address in HR system.)
“K” “8” “BLANK” “BLANK”
Push 5
th
time Judgment system of refrigerant amount “K” “9” “BLANK” “BLANK”
Push 6
th
time Return to normal view mode -
K3 Key function Display LED
Push 1
st
time Reset -
K4 Key function
Display LED
SEG 1 SEG 2, 3, 4
Push 1
st
time Outdoor capacity 1 Ex) 16 HP
Off, 1, 6
Push 2
nd
time Digital comp loading time 2 Ex) Loading 13 sec
Off, 1, 3
Push 3
rd
time High pressure (kg/cm
2
) 3 Ex) High pressure 15.2 (kg/cm2)
1, 5, 2
Push 4
th
time Low pressure (kg/cm
2
) 4 Ex) Low pressure 4.3 (kg/cm2)
0, 4, 3
Push 5
th
time Discharge temperature of compressor 1 5 Ex) 87°C
0, 8, 7
Push 6
th
time Discharge temperature of compressor 2 6 Ex) 87°C
0, 8, 7
Push 7
th
time Discharge temperature of compressor 3 7 Ex) 87°C
0, 8, 7
Push 8
th
time CT sensor value of compressor 1 8 Ex) 2A
0, 0, 2
Push 9
th
time CT sensor value of compressor 2 9 Ex) 2A
0, 0, 2
Push 10
th
time CT sensor value of compressor 3 A Ex) 2A
0, 0, 2
Push 11
th
time Suction temperature B Ex) -5 °C
-, 0, 5
Push 12
th
time Cond_out temperature C Ex) 35 °C
0, 3, 5
Push 13
th
time Liquid tube temperature D Ex) 35 °C
0, 3, 5
Push 14
th
time Oil temperature sensor on oil balancing pipe E Ex) 35 °C
0, 3, 5
Push 15
th
time Sump temperature of compressor 1 F Ex) 35 °C
0, 3, 5
Push 16
th
time Ambient air temperature G Ex) 35 °C
0, 3, 5
Push 17
th
time EVI_in temperature H Ex) 35 °C
0, 3, 5
Push 18
th
time EVI_out temperature I Ex) 35 °C
0, 3, 5
Push 19
th
time Main EEV1 step J Ex) 2000 steps
2, 0, 0
Push 20
th
time Main EEV2 step K Ex) 2000 steps
2, 0, 0
Push 21
th
time EVI EEV step L Ex) 300 steps
3, 0, 0
Push 22
th
time HR EEV step M Ex) 300 steps
3, 0, 0
Push 23
th
time Fan step ( SSR or BLDC ) N Ex) 13 steps
Off, 1, 3
Push 24
th
time Version
7-2. Function keys
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