Condensate Pipe; Assembly; General; Connection On The Heating Side - Dimplex LA 33TBS Installation And Operating Instructions Manual

LA 33TBS

5.2 Condensate pipe

To ensure proper drainage, the heat pump must be mounted
horizontally.
Condensate occurring during operation should be directed into a
foundation with gravel. The seepage capacity should be at least
300 litres per day, the diameter of the condensate pipe should be
at least 50 mm.
For free condensate pipes outside the device and above the frost
line, frost protection must be in place. Do not discharge the con-
densate directly into clearing tanks or cess pits. Condensate
pipes that are not routed frost-free or aggressive vapours can de-
stroy 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:
 Heating system flows and returns
 Condensate drain
Communication line

 Control voltage line
 Supply voltage line
ATTENTION!
It is prohibited to remain in the direct vicinity of the device during storms
(risk of lightning)!
ATTENTION!
Work outdoors on electrical equipment or live components may only be
carried out in dry weather conditions. In wet conditions (rain, snow etc.),
the device must be closed correctly.
ATTENTION!
Use personal protective equipment in accordance with German Social
Accident Insurance (DGUV) regulation 100-500 Sec. 2.35. German Social
Accident Insurance (DGUV) regulation 3 must be complied with.
 The plate heat exchanger must be protected against UV ir-
radiation. The only exception is the brief opening of the cov-
ering panels, e.g. for maintenance work.
 The plate heat exchanger must be protected against rainfall
or waterlogging. The covering panels may only be removed
for brief maintenance work.
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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. The connection hoses are routed out of the de-
vice in a downwards direction. A spanner must be used to firmly
grip the transitions when connecting the heat pump.
After the heat pump has been installed, the ductwork must be
sealed so that the connection is gas-tight.
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 may cause the heat pump to completely break down.
For systems in which the heating water flow can be turned off
using radiator and/or thermostat valves, an overflow valve must
be installed by the customer in a heating bypass upstream from
the heating pump. This ensures a minimum heating water flow
rate through the heat pump and helps to avoid faults.
Once the heat pump has been connected to the heating system,
it must be filled, purged and pressure-tested. The installed dirt
trap must be checked for soiling at regular intervals (approx.
every 6 months) and cleaned if necessary.
The following points must be observed when filling the system:
 Untreated filling water and make-up water must be of drink-
ing water quality
(colourless, clear, free of sediments)
 Filling water and make-up water must be pre-filtered (max.
pore size 5 µm).
Scale formation in domestic hot water heating systems cannot be
avoided, but in systems with flow temperatures below 60 °C, the
problem can be disregarded. With high-temperature heat pumps
and in particular with bivalent systems in the higher performance
range (heat pump + boiler combination), flow temperatures of
60 °C and more can be achieved. The following standard values
should therefore be adhered to with regard to the filling and
make-up water according to VDI 2035, sheet 1: The total hard-
ness values can be found in the table.
Total heat
output in kW
< 50
50 - 200
200 - 600
> 600
1. This value lies outside the permissible value for heat exchangers in heat
pumps.
Fig. 6.1:Guideline values for filling and make-up water in accordance with
VDI 2035
For systems with an above-average specific system volume of
50 l/kW, VDI 2035 recommends using fully demineralized water
and a pH stabiliser to minimize the risk of corrosion in the heat
pump and the heating system.
ATTENTION!
With fully demineralized water, it is important to ensure that the minimum
permissible pH value of 7.5 (minimum permissible value for copper) is
complied with. Failure to comply with this value can result in the heat
pump being destroyed.
452166.66.05 · FD 9803
Specific system volume
Total alkaline
(VDI 2035) in l/kW
earths in mol/m³
< 20
and/or mmol/l
Total hardness in °dH
≤ 2,0 ≤ 16,8
≤ 2,0 ≤ 11,2
≤ 1,5 ≤ 8,4
1
< 0,02
< 0,11
English
≥ 20 < 50 ≥ 50
≤ 11,2
≤ 8,4
1
< 0,11
1
< 0,11
EN-7