357
348
233
461
381
326
227
163
124
86
48
282
253
189
137
96
55.5
（
233)
100
.5
110
.5
800
264.5
590
530
357
348
233
282
253
189
137
77
56
461
227
163
157
124
89
86
48
55.5
（
233)
800
264.5
577
110
.5
530
Technical Information
3
GB
Technical Drawings
F
A
B
C
D
E
<EHSC> (Split model system)
<Front>
<Side>
<Rear>
<View from below>
Letter Pipe description
Connection size/type
A
Space heating/Indirect DHW
tank (primary) return connection
28 mm/Compression
B
Flow connection from heat pump 28 mm/Compression
C
Return connection to heat pump
28 mm/Compression
D
Space heating/Indirect DHW
tank (primary) flow connection
28 mm/Compression
E
Discharge pipe (by installer)
from pressure relief valve
G1/2” female (valve port within hydrobox casing)
F
Electrical cable inlets
—
For inlets and , run low-voltage wires including
external input wires and thermistor wires. For inlets
and , run high-voltage wires including power cable,
indoor-outdoor cable, and external output wires.
*For a wireless receiver (option) cable, use inlet
.
<Table 3.8>
F
A
B
C
D
E
<EHPX> (Packaged model system)
<Front>
<Side>
<Rear>
<View from below>
Earth leakage
circuit breaker
Terminal block
Main controller
Pressure relief
valve
Earth leakage
circuit breaker
Terminal block
Main controller
Pressure relief
valve
Automatic air vent
Automatic air vent
Letter Pipe description
Connection size/type
A
Space heating/Indirect DHW
tank (primary) return connection
28 mm/Compression
B
Space heating/Indirect DHW
tank (primary) flow connection
28 mm/Compression
C
Refrigerant (Liquid)
9.52 mm/Flare
D
Refrigerant (Gas)
5.88 mm/Flare
E
Discharge pipe (by installer) from
pressure relief valve
G1/2” female (valve port within hydrobox casing)
F
Electrical cable inlets
—
For inlets and , run low-voltage wires including
external input wires and thermistor wires. For inlets
and , run high-voltage wires including power cable,
indoor-outdoor cable, and external output wires.
*For a wireless receiver (option) cable, use inlet
.
<Table 3.7>
