Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 901

(6) Setting of unit address
Addresses can be set either with the automatic address setting, remote control address setting or manual address setting
depending on the combinations of address switches (see table) of the indoor and outdoor units. Operate the address switches
before turning power on.
Address setting method
Auto address
Remote control address
Manual address
At the shipment from factory, outdoor Nos. of the outdoor unit are set at 49, both the output and indoor Nos. of the indoor
units are set at 49 and the setting method is set for the automatic addressing.
Address No. setting
Set the setting SW1 - 4 on the indoor PCB and the setting SW1 and 2 on the outdoor PCB as listed below.
On indoor PCB
On outdoor PCB
SW1(SW3)
Order of 10
SW2(SW4)
Order of 1
Notes (1) Outdoor No. is provided on the outdoor and indoor PCB's and indicates which outdoor unit is connected with
which indoor unit via a refrigerant pipe. Indoor and outdoor units connected with a refrigerant pipe must have
the same No.
(2) Indoor No. is used to identify a particular indoor unit. The No. should never be duplicated.
(a) Auto address setting
This setting is used when wiring on the basis of outdoor unit.
Outdoor unit
No. 49
A
A
Indoor unit
Remote controller
Outdoor unit
Outdoor No.
49
00 ~ 47
00 ~ 47
.
SW1, 2 (blue)
SW3, 4 (green)
SW1, 2 (green)
SW1
(SW3)
order of 10
Insert the tip of flat head
(precision) screwdriver
here and point the arrow
at a desired No.
B
B A B
Indoor unit
Remote controller Remote controller
Indoor unit
Outdoor No.
49
49
00 ~ 47
For setting of indoor No. (orders of 10 and 1)
For setting of outdoor No. (orders of 10 and 1)
For setting of outdoor No. (orders of 10 and 1)
SW2 (SW4) Order of 1
0 1 2 3 4 5 6 7
0 00 01 02 03 04 05 06 07
1 10 11 12 13 14 15 16 17
2 20 21 22 23 24 25 26 27
3 30 31 32 33 34 35 36 37
4 40 41 42 43 44 45 46 47
Use 48 and 49 for setting the auto or remote
control address.
A B
Indoor unit Indoor unit
Wires cannot be connected across
different refrigerant lines.
FDC-HKX
Indoor No.
49
49
00 ~ 47
8 9
08 09
18 19
28 29
38 39
48 49
A B
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