Installation; General; Air Connection; Heating System Connection - Dimplex LIKI 14TE Instructions D'installation Et D'utilisation

LIKI 14TE
7

Installation

7.1 General

The following connections need to be established on the heat
pump:
 Fresh and exhaust air
 Flow and return flow of the heating system
 Condensate drain
 Outflow for the pressure relief valve
 Temperature sensor
 Voltage supply

7.2 Air connection

ATTENTION!
Do not restrict or block the area around the air intake or outlet.
In addition to a duct connection (using the "sealing rings"), the
device's air intake opening is also suitable for direct connection
to a appropriately constructed wall opening. The wall opening
must be prepared for use with an air duct and sealing collar. See
the illustration in the appendix under Installation Dimensions.
When using very short air ducts with the air outlet, but especially
when connecting the heat pump directly on the air outlet side
using only the "sealing rings", the following must be observed:
The exterior side of the wall opening must be fitted with a safety
guard (or an air deflector grille) suitable for preventing body parts
(fingers or arms, especially those of children) coming into contact
with the ventilator in the heat pump.
The glass fibre reinforced concrete air ducts (intake-side duct
with 770 x 770 external dimensions) offered as accessories are
moisture-resistant and diffusion-free.
The sealing collar is used to seal the air ducts on the heat pump.
The air ducts are not screwed directly onto the heat pump. Only
the rubber seal comes into direct contact with the heat pump
when the system is installed correctly. This guarantees easy as-
sembly and disassembly of the heat pump and also ensures that
solid-borne sound is well insulated.
It must also be ensured that the interior side of the wall opening
is lined with thermal insulation to prevent the wall from becoming
cold and to prevent moisture from penetrating the wall.
The air outlet can be optionally mounted directly to an appropri-
ately constructed wall opening or to a longer duct (outlet-side
duct with 600 x 600 external dimensions, available as an acces-
sory). Use the same mounting procedure as for the air inlet.
EN-8

7.3 Heating System Connection

The heat pump is connected to the heating system using 1 1/4"
externally-threaded flat gasket connections.
If the heat pump is not intended to be used to heat up the hot wa-
ter, the hot water output must be permanently sealed using suit-
able closing caps.
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.
An dual differential pressureless manifold is installed in the de-
vice for systems in which the heating waterflow can be shut off
via the radiator or thermostat valves. This ensures a minimum
heating water flow rate through the heat pump and helps to avoid
faults.
The installation of an external heat circulating pump is recom-
mended for standard operation of the heat pump.
Once the heating system has been installed, 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. 5 µm).
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):
Total heat
output in [kW]
up to 200
200 to 600
> 600
The integrated expansion vessel has a volume of 24 litres. This
volume is suitable for buildings with a living space area to be
heated of maximum 200 m².
The volume should be checked by the heating system techni-
cian. If necessary, an additional expansion vessel must be in-
stalled (according to DIN 4751, Part 1). The tables listed in the
manufacturers' catalogues simplify dimensioning the system on
the basis of the water content. Allow for a buffer tank volume of
120 litres when making the calculation.
ATTENTION!
In the case of large-volume heating circuits, an additional expansion
vessel must be used to supplement the installed expansion vessel
(24 litres, 1.0 bar admission pressure).
452160.66.44 · FD 9401
Total alkaline earths
Total
in mol/m³ and/or
hardness in °dH
mmol/l
 
2.0 11.2
 
1.5 8.4
< 0.02 < 0.11
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