Panasonic Aquarea B1 Planning And Installation Manual page 95

Installation
6.8.2.2 Connecting accessories to the compact device
The following method is applicable as appropriate for all compact devices, but will be explained
here on the basis of the example of a B8 model compact device (H-Generation) and B9 model
(G-Generation) (→ Installation example for accessories: Compact devices, p.
Carry out the following steps to connect accessory cables to the external interfaces of the com-
pact devices:
1. Open the compact device (→ 6.5 Opening devices, p.
2. If a cover is available on the rear side of the cabinet on the cable gland (depends on mod-
el), remove the cover before connecting the cable and re-assemble it afterwards.
If a cable sleeve is available (depends on model), cut the cable sleeve in the form of a
cross using a knife.
3. Guide the accessory cables through the cable glands according to the illustration below
(2, 3, 4, 5, 6, 16) into the device.
4. Fix the accessory cables using cable binders (10, 18) and cable holders (cable reliefs) (9,
19).
5. Connect the accessory cable according to the installation example below and the subse-
quent brief overview of the external interfaces
Interfaces, p. 184) and take care to leave the ground connector (if present) longer than
the other cables (a). Also see that the cables do not come in contact with the pump or
other hot objects such as the water pipelines at any point, so that the insulation is not
damaged.
182
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
183).
148).
(→ 6.8.2.3 Brief Overview of the External
Installation example for accessories: Compact devices WH-MDC09H3E5 and
WH-MHF12G9E8
A
7
8
1
9
10
2
3
4
11
5
6
12
13
a
9
A WH-MDC09H3E5: Detailed view of the Rear Side
1 Rear side of the Cabinet
2 Cable gland for room thermostat heatC. 1, room
thermostat heatC. 2, mixing valve heatC. 1, mixing
valve heatC. 2
3 Cable gland for pump heatC. 1, pump heatC. 2, so-
lar station, swimming pool pump, fault report signal
4 Cable gland for room temperature sensor heatC.
1, room temperature sensor heatC. 2, buffer tank
temperature sensor, swimming pool temperature
sensor, water temperature sensor heatC. 1, water
temperature sensor heatC. 2, power control signal,
solar temperature sensor, Smart Grid signal, heat-
ing/ cooling switchover, external outdoor unit switch
5 Cable gland for external control signal, tank tem-
perature sensor, room temperature sensor heatC.
1, outdoor temperature sensor, overload protection
hot water tank
6 Cable gland for 3 way-valve, 2-way valve, room
thermostat heatC. 1, E-heating element heat pump,
booster pump, connection of bivalent heat source,
operating unit
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
B C D
8
9
8
10
14
15
16
9
B WH-MDC09H3E5: Detailed view of the Front
Side
7 Optional additional PCB CZ-NS4P
8 Cable glands for accessories cable
9 Cable holder / cable reliefs
10 Cable binder
11 Main PCB
12 FI switch for mains connection 2
13 FI switch for mains connection 1
a Ground connector for safety reasons to be left
longer than the other cables
C WH-MHF12G9E8: Detailed view of the Rear Side
14 Rear side of the Cabinet
15 Cable glands for Operating unit
16 Cable glands for accessory cable
D WH-MHF12G9E8: View of the Front Side
17 Accessory cable
18 Cable binder
19 Cable holder / cable reliefs
20 Terminals of the external interfaces
20
19
18
17
183