Haier MRV 5-RC AB052MAERA, Service Manual

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157
SW1 SW2 SW3 function Digital tube LD1 ~ 4 display
Outdoor
unit
address
0-3
14
（
E
）
15
（
F
）
Frequency converter INV1 module temperature Unit: degree
15
（
F
）
15
（
F
）
Frequency converter INV2 module temperature Unit: degree
③
System status display and control (host)
SW1 SW2 SW3 function Digital tube LD1 ~ 4 display
0 0 2 Refrigerant type 410A represents 410A refrigerant
0 1 2
The same outdoor unit total
number and total capacity
LD1
：
The total number of outdoor unit
LD2
：
Display “-”
LD3/ LD4
：
Total outdoor unit capacity (unit: Horse)
For example: 3-48 said 3 outdoor machines, with a total
capacity of 48 horses
0 2 2 Total indoor unit capacity 50 represents 50 horses
0 3 2
Number of valve boxes and
indoor units in the same
system
LD1/ LD2: Number of valve boxes (three-line model)
LD3/ LD4: number of indoor units
For example: 0206 means 2 valve boxes, 6 indoor units
0 4 2
Number of indoor unit
working
Temperature sensor ON as a sign of the work of the indoor
unit
0 5 2
With the outdoor unit running
mode the same indoor unit
number
For example: 13
0 6 2 Cooling target temperature
Unit: degree
0 7 2 Heating target temperature
0 8 2
Automatic recovery of
refrigerant
Note: the end of the recovery
must be canceled or reset
When the outdoor stops, press START (SW5) for 2 seconds,
display 1111, start. (the outdoor is set to work in a state of
operation)
Press STOP (SW6) for 2 seconds, display 0000, stop
0 10
（
A
）
2
Test run setup
Note: the end of the test run
must be canceled or reset
When the outdoor stops, press START (SW5) for 2 seconds,
display 1111, start. (the outdoor is set to work in a state of
operation)
Press STOP (SW6) for 2 seconds, display 0000, stop
0 11
（
B
）
2 Outdoor unit mode 0-normal C-only cool H-only heat
0 12
（
C
）
2
Indoor unit expansion valve
fully open
Press START (SW5) for 2 seconds, display 1111, indoor
valve fully open 2 minutes, 2 minutes after the automatic
shutdown valve
0 13
（
D
）
2 All the indoor unit for cooling
Press START (SW5) for 2 seconds, display 1111, fully open
；
Press STOP (SW6) for 2 seconds, 0000, closed
0 14
（
E
）
2 All the indoor unit for heating
0 15
（
F
）
2
Cancel all manual control
(running class)
Press START (SW5) for 2 seconds, display 1111 cancel; or
press STOP (SW6) for 2 seconds, display 0000, cancel
Remove all manual control (part), closed indoor unit
④
E2 control parameters display and setting
Each need to be set, setting method:
(1)Press START (SW5) for 2 seconds, display 1111, enter the set state, flashing display the current value
(2)According to UP (SW4) or DOWN (SW7) adjustment parameters
(3)After the adjustment is completed
<A> In the current state of the code, effectively set the time by pressing STOP (SW6) for 2 seconds, showing 0000,
keeping the current settings and exit the set state, stop flashing display, waiting for 2 minutes after the power off
and then re power up
<B> The current set time is not set by STOP (SW6) or change the dial selection, do not save the current set value,
exit the set state, stop flashing display
<C> Effective time setting: the machine with the contract number and set off a low temperature automatic operation
function for 10 minutes, the other for 30 seconds.