Panasonic Aquarea B1 Planning And Installation Manual page 94

Installation
Connection diagram - Compact devices
Models
WH-MDC05H3E5
WH-MDC07H3E5
WH-MDC09H3E5
WH-MXC09H3E5
WH-MXC12H6E5
WH-MHF09G3E5
WH-MHF12G6E5
WH-MXC09H3E8
WH-MHF09G3E8
WH-MXC12H9E8
WH-MXC16H9E8
WH-MHF12G9E8
6.8.2 Connecting the optional on-site accessories
6.8.2.1 Connecting accessories to the indoor unit
The following method is applicable as appropriate for all indoor units, combination hydro-mod-
ules and hydro-modules of all generations, but will be explained here on the basis of the exam-
ple of a hydro-module of the H-Generation
ule, p. 181).
Carry out the following steps to connect accessory cables to the external interfaces of the indoor
unit:
1. Open the indoor unit (→ 6.5 Opening devices, p.
box.
2. Guide the cable through the cable glands (6/7, a) into the device as shown in the illustra-
tions below.
3. Fix the cable by using cable holders (cable reliefs) (3, b) and bundle the accessory cables
by means of cable binders (4, d).
4. Connect the accessory cables 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 longer than the other
cables (c).
180
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Connection diagram
Terminals on
L N L N
compact device 1 1
Terminals on
L N L N
disconnector 1 1
Mains connection 1 Mains connec-
tion 2
Terminals on
L L L N L N
A1 A2 A3
compact device
Terminals on
L L L N L N
disconnector A1 A2 A3
Mains connection 1 Mains connec-
tion 2
Terminals on
L L L N L L L N
compact device A1 A2 A3 C1 C2 C3
Terminals on
L L L N L L L N
disconnector A1 A2 A3 C1 C2 C3
Mains connection 1 Mains connection 2
(→ Installation example for accessories: Hydro-mod-
148) and, if applicable, the connection
(→ 6.8.2.3 Brief Overview of the External
Installation example for accessories: Hydro-module WH-SDC03H3E5-1
A
3 + b
4 + d
1
4 + d
A Connection of the Accessories Cable
1 Main PCB
2 Optional additional PCB CZ-NS4P
3 Cable holders / cable reliefs
4 Cable binder
B Detailed view: Cable glands
5 Cable glands for power and connecting cables
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
B
2
7
3 + b
6
5
c
4 + d
a Use separate cable glands for power cord and
accessory cables
b Fix accessory cable with cable holders/ cable
reliefst for safety reasons
c Leave ground connector longer than the other
cables for safety reasons
d Bind all accessory cables together by means of
a
cable binders
6 Cable gland for 3 way-valve, 2-way valve, room
thermostat heatC. 1, E-Heating element hot water
tank, booster pump, connection bivalent heating
source
7 Cable gland for external control signal, tank tem-
perature sensor, room temperature sensor heatC.
1, outdoor temperature sensor, overload protection
hot water tank, operating unit
181