15
OCH714D
a
b
b
d
Service access
5-2. Service access diagrams
Service access
Parameter
Dimension (mm)
a
300*
b
150
c (distance behind unit not visible
in the right figure)
10
d
500
Sufficient space MUST be left for the provision of discharge pipework as detailed
in National and Local Building Regulations.
The cylinder unit must be located indoors and in a frost-free environment, for
example in a utility room, to minimise heat loss from stored water.
* An additional 300 mm of space (total
600 mm) is required , when installing
the optional 2-zone kit (PAC-TZ02-E)
on top of the cylinder unit.
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 and ecodan Wi-Fi interface (option) cable, use inlet .
1 2 3
4 5
50±20
680
100±20
50±20
120±20
595
1750
632
120
G1/2
G1/2
HANDLE
PRESSURE RELIEF VALVE
(PRIMARY CIRCUIT)
PRESSURE RELIEF VALVE
(SANITARY CIRCUIT)
MANOMETER
MAIN
CONTROLLER
TERMINAL
BLOCK
FRONT PANEL
(Split model 2 zone system)
0
0
0
50±20
680
100±20
50±20
120±20
595
1750
632
120
160.5
182.5
205.5
227.5
250.5
48
182.7
262.4
495.8
552.7
67.9
148
334.9
414.9
470.7
510.7
G1/2
G1/2
99
REFRIGERANT(GAS)
REFRIGERANT(LIQUID)
DHW FLOW (G3/4)
COLD WATER INLET (G3/4)
FLOW ZONE 1 (G1)
FLOW ZONE 2 (G1)
ELECTRICAL CABLE INLETS
RETURN ZONE 1(G1)
RETURN ZONE 2(G1)
HANDLE
PRESSURE RELIEF VALVE
(PRIMARY CIRCUIT)
PRESSURE RELIEF VALVE
(SANITARY CIRCUIT)
MANOMETER
MAIN
CONTROLLER
TERMINAL
BLOCK
FRONT PANEL
