Dimplex LA 6TU, Installation And Operating Instructions Manual

Page: 20 / 52

EN-5 452163.66.36 · FD 9110 www.dimplex.de
English
LA 6TU
ATTENTION!
Installation in a hollow or in an inner courtyard is not permitted because
cooled air collects at ground level and is drawn in again by the heat pump
during lengthy operation.
5.2 Condensate pipe
Condensate that forms during operation must be drained off
frost-free. To ensure proper drainage, the heat pump must be
mounted horizontally. The condensate pipe must have a mini-
mum diameter of 50 mm and must be fed into a sewer in such a
way that it is safe from frost. Do not discharge the condensate di-
rectly into clearing tanks or cesspits, as aggressive vapours or a
condensed water pipe which has not been laid in a frost-free
manner could destroy the evaporator.
ATTENTION!
The frost line can vary according to the climatic region. The regulations
of the countries in question must be observed.
6 Assembly
6.1 General
The following connections need to be established on the heat
pump:
„ Flow and return of the heating system
„ Control lines to the heat pump manager
„ Power supply
„ Condensate drain
All panelling can be removed to allow accessing the inside of the
device.
Loosen the screws for this purpose. The panels can be removed
toward the top when slightly tilted.
6.2 Connection on the heating side
The heating system connections on the heat pump are to be
made inside the device. Refer to the device information for the
connection sizes. Route the connection hoses out of the device
in a downwards direction. An optional pipe kit is available as an
accessory, which can be used to lead the connections out to the
side. Use a spanner to firmly grip the transitions when connecting
the heat pump.
Before connecting the heating water system to the heat pump,
the heating system must be flushed to remove any impurities,
residue from sealants, etc. Any accumulation of deposits in the
liquefier could cause the heat pump to completely break down.
Once the heat pump has been connected to the heating system,
it must be filled, de-aerated and pressure-tested.
Consideration must be given to the following when filling the sys-
tem:
„ Untreated filling water and make-up water must be of drink-
ing water quality
(colourless, clear, free from sediments)
„ Filling water and make-up water must be pre-filtered (pore
size max. 5µm).
Scale formation in hot water heating systems cannot be com-
pletely avoided, but in systems with flow temperatures below
60°C the problem can be disregarded.
With medium and high-temperature heat pumps, temperatures
above 60°C can be reached.
The following standard values should therefore be adhered to
concerning the filling water and make-up water (according to VDI
2035 Sheet 1):
Minimum heating water flow
The minimum heating water flow rate through the heat pump
must be assured in all operating states of the heating sys-
tem. This can be accomplished, for example, by installing either
a dual differential pressureless manifold or an overflow valve.
The procedure for adjusting an overflow valve is described in the
Chapter Start-Up. When the minimum flow rate is undershot
drastically, the plate steel exchanger in the refrigerating cycle
can freeze, which can lead to total loss of the heat pump.
NOTE
The use of an overflow valve is only recommended for panel heating and
a max. heating water flow of 1.3 m³/h. System faults may result if this is
not observed.
Opening the cover panels Closing the cover panels
P
)URVWOLQH
&RQGHQVDWHGUDLQ
)ORZDQGUHWXUQ
(OHFWULFFDEOHV
+HDWSXPS
Total heat
output in [kW]
Total alkaline earths
in mol/m³ and/or
mmol/l
Total
hardness in °dH
up to 200
≤
2.0
≤
11.2
200 to 600
≤
1.5
≤
8.4
> 600 < 0.02 < 0.11