Basic Device; Accessories; Connecting Flanges; External Four-Way Reversing Valve, Water Circuit Side - Dimplex WI 140TUR+ Installation And Operating Instruction

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Basic device

The basic device consists of a ready-to-use heat pump for in-
door installation, complete with sheet metal casing, control
panel and integrated heat pump manager. The refrigeration cir-
cuit is "hermetically sealed" and contains the fluorinated refrig-
erant R410A included in the Kyoto protocol. Information on the
GWP value and CO equivalent of the refrigerant can be found
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in the chapter Device information. The refrigerant is CFC-free,
non-ozone depleting and non-combustible.
All components required for the operation of the heat pump are
located in the control box. An external temperature sensor in-
cluding fixing accessories, a dirt trap and a flow rate switch, is
supplied with the heat pump. The voltage supply for the load
and control current must be provided by the customer.
The well water pump (to be provided by the customer) must be
controlled via the switch box. It must be equipped with a motor
protection device, if required.
The customer must provide hydraulic components for the well
water circuit.
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4
1) Control
2) Evaporator
3) Liquefier
4) Compressor
5) Transport securing devices
6) Hot water liquefier
EN-4
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3
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452234.66.76 · FD 9912
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Accessories

4.1 Connecting Flanges

The use of flat-sealing connecting flanges allows the unit, as an
option, to be connected by means of flanges.
4.2 External four-way reversing
valve, Water circuit side
The external four-way reversing valve (Y12) enables optimised
heating and cooling operation of the reversible water-to-water
heat pump. The reversal of the flow direction ensures an opti-
mum flow through the heat exchanger on the secondary side,
both in heating operation and in the opposite direction in cool-
ing operation. The electrical actuator required for automatic
switching is controlled by the heat pump manager. (Max. per-
missible switching current 2A).
If the external four-way reversing valve is not used, the heat
outputs and the COPs are reduced as specified in the device in-
formation. With heating-only operation without an external
four-way valve, the hydraulic connection should be carried out
such that the heat exchanger is loaded in the opposite direction
(observe note in section 7.2 „Connection on heating and hot
water side").
The external four-way reversing valve with a set time of max. 60
seconds, which is available as special accessory, ensures
switching of the water flow over the complete range of operat-
ing temperatures without any mixing losses.
The hydraulic and electrical circuit diagrams in the appendix
show the basic design. Detailed installation instructions are
provided with the four-way reversing valve.

4.3 Remote control

A remote control adds convenience and is available as a special
accessory. Operation and menu navigation are identical to
those of the heat pump manager. Connection takes place via an
interface (special accessories) with RJ 12 Western plug.
NOTE
In the case of heating controllers with a removable operating
element, this can also be used directly as a remote control.
WI 140TUR+
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