Electrical Work - Mitsubishi Electric PEH-2.5EAK Installation Manual

. Electrical work
Fig. -1
.. Electrical
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
<For heat pump models>
<For heat pump models>
Set the DIP switch (SW5-3) of the indoor unit control board.
G Main indoor H Sub indoor
SW5
SW5-1: ON SW5-1: ON
SW5-2: OFF SW5-2: OFF
SW5-3: OFF SW5-3: ON

.1. Indoor unit
Electrical wiring connections (tighten the terminal screws securely) (Fig. -1)
A Remove the two screws
B Electrical parts cover
C Wired remote controller terminal bed
D Indoor controller board
E Power supply terminal bed with earth terminal
F Outdoor unit transmission terminal bed
Field wiring method
1 Open knockout holes. (Fig. 6-2)
(Recommend to use a screwdriver or the like for this work.)
A Control box B Knockout hole C Remove D Knockout hole
Fig. -
2 Fix power supply wire to control box by using buffer bushing for tensile
force. (PG connection or the like.) Connect control wire to transmission
terminal block through the knockout hole of control box using ordinary
bushing. (Fig. -3)
Connect the power supply wire and the control wire, referring to the fol-
lowing diagram.
E To prevent external tensile force from applying to the wiring connection section of power
source terminal block use buffer bushing like PG connection or the like.
F Power supply wire
G Tensile force
H Use ordinary bushing
I Indoor unit/wired remote controller connecting cords
J Indoor unit/outdoor unit connecting cords
Fig. -3
1:1 System
<For cooling only models>
Simultaneous twin system
<For cooling only models>
Set the DIP switch (SW5-3) of the indoor unit control board.
K Main indoor
SW5
SW5-1: ON
SW5-2: ON
SW5-3: OFF
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor unit/outdoor unit connecting cords
F Wired remote controller
G Indoor unit <For heat pump models>
H Indoor unit <For cooling only models>
J Indoor unit power supply
A Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E Indoor unit/outdoor unit connecting cords
F Wired remote controller
G Main indoor unit <For heat pump models>
H Sub indoor unit <For heat pump models>
K Main indoor unit <For cooling only models>
L Sub indoor unit <For cooling only models>
J Indoor unit power supply
When setting the sub indoor unit, set the
DIP switch (SW5-3) of the indoor unit
L Sub indoor
control board to ON.
SW5-1: ON
SW5-2: ON
SW5-3: ON