Demand Sensor Connection; Secondary Pump M16 Connection; High-Performance Circulating Pump Connection; Frost Protection - Dimplex La 4060Cp Montage- Und Betriebsanleitung

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Run a total of 3 lines/cables to the heat pump:
Power supply
A standard, 5-core cable provided on-site is used to connect the heat pump to the power supply.
Select the cable cross-section according to the power consumption of the heat pump and the applicable VDE (EN) and
VNB regulations } Device information [12, p. 37] . An all-pole disconnecting device with a contact gap of at least 3
mm (e.g. utility company blocking contactor, power contactor) must be installed in the heat pump power supply.
A 3-pole circuit breaker with joint tripping of all outer conductors, taking into account the design of the internal wiring,
provides short-circuit protection (trip current in accordance with } Device information [12, p. 37] ). The relevant
components in the heat pump contain an internal overload protection. When connecting, ensure that the incoming
supply has a clockwise rotating field.
Phase sequence: L1, L2, L3.
Control voltage
The control voltage is supplied via the heat pump manager (controller -N1). A 3-pole line must be installed for this
purpose in accordance with the electrical documentation.
Further information on the wiring of the heat pump manager, refer to the associated operating instructions.
Communication line
A shielded communication line (J-Y(ST)Y ..LG) (not included in the scope of supply) connects the heat pump manager
(controller -N1) with the refrigerant circuit controller -N0 installed in the heat pump.
More detailed instructions can be found in the heat pump manager operating instructions and in the electrical
documentation.
The communication cable is necessary for the function of air-to-water heat pumps in outdoor installation. It must be
shielded and laid separately from the mains cable.
7.4.2

Demand sensor connection

The demand sensor R2.2 (NTC-10) is included with the heat pump manager (controller -N1). It must be installed
depending on the hydraulics used } Hydraulic integration diagrams [16, p. 49] .
If a demand sensor is not connected, the 2nd heat generator cannot be controlled using the heat pump manager in the
event of an interruption in communication .
The return sensor R2 installed in the heat pump is active when the compressor is running and must not be
disconnected!
Sensor cables can be extended up to 50 m with 2 × 0.75 mm cables.
7.4.3

Secondary pump M16 connection

As an option, the load and control voltage for the secondary pump M16 can be controlled using the refrigeration circuit
controller RC2. Further information can be found in the associated electrical documentation.
7.4.4

High-performance circulating pump connection

In many cases, when using larger electronically controlled circulating pumps the supply voltage of the pump is
connected to continuous current (observe the manufacturer's specifications for the pump being used). The pump is
then generally actuated using the Start/Stop input. This input is operated with extra low voltage from the pump (a link
cable is usually inserted in the factory default of the pump).
In order to be able to actuate the input, a coupling relay with a floating contact is required. This must be controlled using
the pump function of a 230 V relay output on the controller. Due to the extra low voltage to be connected, select a
suitable relay with appropriate contact material (gilded) on-site and integrate it.
7.4.5

Frost protection

Regardless of the settings for the heat circulating pumps, they always run in heating, defrost and frost protection mode.
In systems with multiple heating circuits, the 2nd and 3rd heat circulating pump has the same function.
!
NOTICE
Damage due to frost
When the heat pump manager has no voltage, there is no longer any flow through the heat pump and damage can
occur due to frost.
▪ To guarantee the heat pump frost protection function, do not disconnect the heat pump manager from the voltage.
▪ The secondary pump M16 must either be connected to the heat pump manager or to the heat pump (connection
box M16).
EN 28
•
452173.66.03c FD 0509
•
LA 4060CP
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