Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 885

(e) Set necessary functions in accordance with the model of indoor unit.
Refer to (c) for the setting of functions.
(f ) Couple the upper case with the lower case as they were.
(g) Secure the remote controller cords on the wall or other using cord
clamps.
Embedded installation
1) Have a JIS box and remote controller cords (use shielding wires or
twisted pair wires for extension) embedded in the wall in advance.
Remote controller cords
Adequate JIS box
● JIS C 8336 Single switch box (without cover)
● JIS C 8336 Medium size square outlet box and two-switch cover
with paint margin
2) Remove the upper case from the remote controller.
3) Secure the remote controller body on the JIS box with 2 pieces of M4
round head screw (provided by customer).
4) Connect remote controller cords with the remote controller.
(Refer to the section regarding the exposed installation.)
5) Couple the upper case with the lower case as it was to finish up the
installation.
M4 round head screw x 2 pieces
(Provided by customer)
Cautions for extension of remote controller cords
● Make sure to use shielding wires only.
• All models: 0.3 mm
2 x 3 core wires [MVVS3C, products of
Keihan Cables]
Note (1) When the extension distance exceeds 100 m, change the wire size as
follows:
2
100 ~ 200 m ... 0.50 mm
2
~ 300 m ... 0.75 mm
~ 400 m ... 1.25 mm 2
~ 600 m ... 2.00 mm 2
● Make sure to ground one side only of the shielding wire.
JIS box
(Provided by customer)
3 core wires
3 core wires
3 core wires
3 core wires
(3) Setting the functions
Change the setting of selector switches (WS1 SW4)
~
and jumper wires (J1 J4) in accordance the functions of
indoor unit and purposes of use.
To indoor unit
Upper case
Jumper wire
(J1 ~ J4)
Functions of selector switches
Switch
C Model type - Cooling only
SW1
H Model type - Heat pump model
ON Remote control sensor - Valid
SW2
OFF Remote control sensor - Invalid
ON Power failure compensation - Provided
SW3
OFF Power failure compensation - Not provided
S Remote controller selector - Slave
SW4
M Remote controller selector - Master
Functions of jumper wires
Name
With Return air temperature display - Valid
J1
(1)
None Return air temperature display - Invalid
With Blow rate display - 3 speed
J2
(1)
None Blow rate display - 2 speed
With Timer function - Valid (Normal)
J3
None (1) Timer function - Invalid
With Auto swing display-With
J4
(1)
None Auto swing display - None
With For KX multi
J6
(1)
None For KXR multi
Note (1) "None" means it is not installed on the PCB or open.
FDC-HKX
~
J6
Selector switch
(SW1 ~ SW4)
Heat sensor
element
Function
Function
883