Mitsubishi Heavy Industries SRRM25ZF-S, Technical Manual, Page: 77 / 127

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3) Preparations for the Main Frame
Mounting of interconnecting wires (Field wiring)
a) Remove the control lid.
b) Connect the connection wire securely to the terminal block.
1) Connect the connection wire securely to the terminal block.
If the wire is not affixed completely, contact will be poor,
and it is dangerous as the terminal block may heat up and catch fire.
2) Take care not to confuse the terminal numbers for indoor and outdoor connections.
3) Affix the connection wire using the wiring clamp.
c) Attach the control lid.
4) Securing the Ceiling Hanging Bolts
5) Filter guide set installation steps
• Please attach the provided filter guide set.(When an
option part (Lower suction grill set model RTS12)is
attached, no need to attach the filter guide set.)
a) Remove the filter bracket fixing screws from
the filter guide set first, and detach the filter
bracket and the air filter in that order.
b) Remove the screws(5 screws)from the main
unit.
c) Attach the filter guide to the main unit(with 14
fixing screws).
d) Attach the air filter onto the filter guide, and
then, attach the filter bracket and the filter
bracket fixing screws in that order.
Clamp
Control lid
Terminal block
Use cables for interconnection wiring to avoid loosening of the wires.
CENELEC code for cables Required field cables.
H05RNR4G1.5 (Example)
H
Harmonized cable type
05 300/500 volts
R
Natural-and/or synth. rubber wire insulation
N Polychloroprene rubber conductors insulation
R Stranded core
4 Number of conductors
G One conductor of the cable is the earth conductor (yellow/green)
1.5 Section of copper wire (mm
2
)
• Secure the ceiling hanging
bolts firmly following the
illustrations and other
instructions.
If steel embedded ceiling
Inserts
Holed anchor
Holed plug
Concrete
Hanging bolts M8
If wooden ceiling
Holes for ceiling hanging bolts
Square bars for hanging
the air conditioner
Clamps
Beams
Unit main body
Tapping screw(14 screws)
Filter bracket fixing screw
Filter bracket
(Remove it temporarily)
Filter guide
Air filter