Panasonic Aquarea B1 Planning And Installation Manual page 98

Installation
Carry out the following steps to mount the operating unit on the wall and to connect it:
1. For compact systems: Skip this step and begin wall mounting with step 2.
For split systems: First, disassemble the operating unit from the indoor unit as follows:
a. Open the cabinet of the operating unit (Fig. A), by positioning a slot screw driver (4) or a
similar tool in the slots (3) at the bottom edge and then taking apart the cabinet top part
(1) and cabinet bottom part (2), exercising caution. Take care not to damage the cabinet.
b. Disconnect the electrical wiring of the operating unit (5) to the terminals of the indoor unit
(8) and the operating unit (9) (Fig. B + C).
c. Loosen the three screws (6) from the cover of the connection box to remove the bottom
part of the operating unit (Fig. B).
A
1
2
B
2
1
a
5
a Disconnecting the electrical wiring
b Loosening screws
188
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
A+B Disassembly of the Operating Unit
1 Cabinet top part
2 Cabinet bottom part
3 Slots
4 Screw driver
5 Electrical wiring of the operating unit (no
polarity)
6 Screw
4
C Schematic detailed representation of
the terminals on the indoor unit and
operating unit
5 Electrical wiring of the operating unit
3
7 Indoor unit
8 Terminals on indoor unit for the electrical
wiring of the operating unit
9 Terminals on the operating unit
C
b
7 8 5
CN4
1
2
3
4
6
2. Install a cable (to be provided on site) that is permissible as electrical wiring of the op-
erating unit
terminals of the indoor unit to the installation location of the operating unit
3. Mount the cabinet bottom part (2) on the wall (10) (Fig. D), by screwing two self-tapping
screws (11) (to be provided on site) into the wall through the two central openings (12) of
the cabinet bottom part. See that the bottom part is seated firmly.
4. Using pincer pliers, open the cable gland (13) at the top edge of the cabinet top part.
Smoothen the edges of the cable gland so that the electrical wiring is not damaged.
5. Guide the electrical wiring of the operating unit (5) through the cable gland into the oper-
ating unit and on the inside of the top part (14) along the edge up to the terminals of the
operating unit. Fasten the cable using cable binders (15).
6. Insulate the conductor of the cable for a length of about 6 mm and ensure that the con-
nections of the electrical wiring point in the right direction.
7. Connect the electrical wiring of the operating unit at the terminals of the indoor unit (9)
and the indoor unit (7) (Fig. E).
D
1
5
9
1
2
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
(→ 4.7.2.2 External interfaces for H-Generation models, p.
D Disassembly of the Operating Unit
2
10
1 Cabinet top part
2 Cabinet bottom part
13
5 Electrical wiring of the operating unit (no
U P
polarity, to be provided on site)
10 Wall
12
11 Self tapping screws (on site)
11
12 Opening
13 Cable gland
14 Inside of the cabinet top part
15 Cable binder
5
E Schematic detailed representation of
the terminals on the indoor unit and
operating unit
15
5 Electrical wiring of the operating unit
14
7 Indoor unit
8 Terminals on indoor unit for the electrical
wiring of the operating unit
9 Terminals on the operating unit
9
E
7
CN4
1
2
3
4
Installation
60), from the
8 5 9
1
2
189