Connection On Heat Source Side; Electrical Connection; Start-Up; General - Dimplex WI 140TUR+ Installation And Operating Instructions Manual

7.3
Frost protection for installations prone to frost
Provided the manager and heating circulating pumps are ready
for operation, the frost protection feature of the manager is ac-
tive. If the heat pump is taken out of service or in the event of a
power failure, the system has to be drained. In heat pump instal-
lations where a power failure cannot be readily detected (holiday
house), the heating circuit must contain a suitable antifreeze
product.
7.3 Connection on heat source
side
The following procedure must be observed when making the
connection:
Connect the well pipes to the heat pump's flow and return.
ATTENTION!
It is essential that the dirt trap included in the accessories pack is
installed in the return (inlet).
ATTENTION!
The well water must comply with the required water quality standards.
The hydraulic plumbing diagram must be adhered to.

7.4 Electrical Connection

The following electrical connections must be established on the
heat pump:
 Control line connection in the heat pump's switch box to the
X2 terminals: L/N/PE.
 Mains cable connection in the heat pump's switch box to the
X1 terminals: L1/L2/L3/PE.
Connection of the well pump mains cable on the heat

pump's control panel via terminal X1: L11/L21/L31/PE.
 Connection of the well pump (to be provided by the custo-
mer) on the heat pump's control panel via terminal X1: PE
and pump contactor K5: 2/4/6.
Ensure that the supply voltage for these terminals cannot be
switched off by the tariff contactor when connecting the mains
cable for the well pump, in order to safeguard the switch-off delay
of the well pump.
All electrical components required for the operation of the heat
pump are located in the control box.
ATTENTION!
All essential circulating pumps must be controlled via the heat pump
manager to ensure proper operation of the heat pump. This includes the
primary (M11), secondary (M13, M16, M18) and the waste heat recovery
side (M18, M19).
For more detailed instructions concerning the connection and
functioning of the heat pump manager (e.g. the supplied external
wall sensor) please refer to the enclosed operating manual of the
manager.
A circuit breaker with common tripping for all external conductors
must be installed in the incoming supply. All poles must be dis-
connected, and there must be a contact gap of at least 3 mm.
The same is true for any utility blocking contactors which might
be installed in addition, e.g. in the case of utility company shut-off
times. The required conductor cross-section is to be selected ac-
cording to the power consumption of the heat pump and the tech-
nical connection requirements of the respective utility company,
in addition to all applicable regulations. Details on the power con-
E-6
sumption of the heat pump are listed on both the product infor-
mation sheet and the type plate. The connection terminals are
designed for the appropriate currents.
ATTENTION!
The clockwise phase sequence must be observed when connecting the
load lines (the heat pump will deliver no output and will be very noisy
when the phase sequence is incorrect).
All lines must be fed into the device from the back and secured
at the switch box using cable connectors. They must additionally
be secured with a strain relief.
8

Start-Up

8.1 General

To ensure that start-up is performed correctly, it should only be
carried out by an after-sales service technician authorised by the
manufacturer. This may be a condition for extending the guaran-
tee. (see warranty service)

8.2 Preparation

Prior to commissioning, the following items need to be checked:
 All connections of the heat pump must have been made as
described in Chapter 7.
 The heat source system and the heating circuit must have
been filled and checked.
 The strainer must have been fitted in the well water inlet of
the heat pump.
 In the well water and heating circuits all valves that might im-
pair the proper flow must be open.
 The settings of the heat pump controller must be adapted to
the heating installation in accordance with the instructions
contained in the manager's operating manual.

8.3 Procedure

The start-up of the heat pump is effected via the heat pump man-
ager.
ATTENTION!
Commissioning is to be effected in accordance with the installation and
operating manual of the heat pump manager.