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Mitsubishi Electric Hydrobox EHSC Series Installation Manual page 7

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3
Technical Information
Technical Drawings
530
<Front>
<EHPX> (Packaged model system)
H
F
48
78
86
124
163
334
419
461
<View from below>
AUTO AIR VENT
FRONT PANEL
EARTH LEAKAGE BREAKER
TERMINAL BED
MAIN CONTROLLER
MANOMETER
PRESSURE RELIEF VALVE
G1/2
G
A
E
B
BACK PANEL SUPPORT
(242)
<Side>
Letter
Pipe description
Space heating/Indirect
A
DHW tank (primary)
RETURN connection
Space heating/Indirect
B
DHW tank (primary)
FLOW connection
C
Refrigerant (Liquid)
D
Refrigerant (Gas)
Flow connection FROM
E
heat pump
Return connection TO heat
F
pump
Discharge pipe (by install-
G
er) from pressure relief
valve
Electrical cable inlets
H
I
Drain socket
<Table 3.4>
<Unit: mm>
<Rear>
Connection size/type
28mm/Compression
(EHSC/D-* and EHPX-*)
G1 nut (ERS*-*)
28mm/Compression
(EHSC/D-* and EHPX-*)
G1 nut (ERS*-*)
6.35 mm/Flare (E*SD-*)
9.52 mm/Flare (E*SC-*)
12.7 mm/Flare (E*SD-*)
15.88 mm/Flare (E*SC-*)
28 mm/Compression (EHPX-*)
28 mm/Compression (EHPX-*)
G1/2" female (valve port within hydrobox
casing)
For inlets
and
, run high-voltage wires
including power cable, indoor-outdoor
cable, and external output wires.
For inlets
and
, run low-voltage
wires including external input wires and
thermistor wires.
For a wireless receiver (option) cable,
use inlet
.
O.D. ø20
HOOK
en
6

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