EN-4
452234.66.75 · FD 9912
www.gdts.one
English
SI
3
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
2
equivalent of the refrigerant can be found
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 supply for the load current
and the control voltage must be installed by the customer.
The control wire of the brine pump (to be provided by the cus-
tomer) is to be connected to the control box. When so doing, a
motor protecting device is to be installed, if required.
The customer must provide both the heat source system and
the brine circuit manifold.
1) Control
2) Evaporator
3) Liquefier
4) Compressor
5) Transport securing devices
6) Hot water liquefier
4
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 brine-to-water
heat pump. The reversal of the flow direction ensures an opti-
mum flow through the heat exchanger on the water circuit side
both in heating operation and in cooling operation in the oppo-
site direction. The electrical actuator required for the 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
º
In the case of heating controllers with a removable operating
element, this can also be used directly as a remote control.
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