180 Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
181
Aquarea air-to-water heat pumps - Planning and installation manual - 01/2018
Installation
Installation example for accessories: Hydro-module WH-SDC03H3E5-1
5
6
7
B
2
3 + b
3 + b
1
4 + d
4 + d
4 + d
c
a
A
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
cable binders
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
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
Connection diagram - Compact devices
Models Connection diagram
WH-MDC05H3E5
WH-MDC07H3E5
WH-MDC09H3E5
WH-MXC09H3E5
WH-MXC12H6E5
WH-MHF09G3E5
WH-MHF12G6E5
Terminals on
compact device
Terminals on
disconnector
Mains connec-
tion 2
Mains connection 1
L
1
N
1
L
1
N
L N
L N
1
WH-MXC09H3E8
WH-MHF09G3E8
Terminals on
compact device
Terminals on
disconnector
Mains connec-
tion 2
Mains connection 1
L
A1
L
A2
L
A3
L
A1
L
A2
L
A3
N
N
L
L
N
N
WH-MXC12H9E8
WH-MXC16H9E8
WH-MHF12G9E8
Terminals on
compact device
Terminals on
disconnector
Mains connection 2Mains connection 1
A1
A2
A3
L
A1
L
A2
L
A3
N
C1
C2
C3
L
C1
L
C2
L
C3
N
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 (→ Installation example for accessories: Hydro-mod-
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. 148) and, if applicable, the connection
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 (→ 6.8.2.3 Brief Overview of the External
Interfaces, p. 184) and take care to leave the ground connector longer than the other
cables (c).
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