STIEBEL ELTRON WPC 04, Эксплуатация и установка

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installation
installation
11.3 opening the appliance
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f f
Remove the fixing screw from under the fascia.
f f
Lift the upper front panel.
f f Secure the upper front panel, as shown in the following di-
agram, using the support attached to the casing. Ensure the
support is placed correctly.
1.
2.
3.
4.
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11.4 installing the heat source system
Engineer the heat source system for the ground source heat pump
according to the technical guides.
11.4.1 permitted brine:
- Heat transfer medium as concentrate on an ethylene glycol
base, part no: 231109 (10 l)
- Heat transfer medium as concentrate on an ethylene glycol
base, part no: 161696 (30 l)
11.4.2 circulation pump and required flow rate
See "COMMISSIONING/ SOURCE/ BRINE PUMP RATING" in the Com-
missioning chapter.
11.4.3 connection and filling with brine
f f Thoroughly flush the pipework before connecting the heat
pump to the heat source circuit. Foreign bodies, such as rust,
sand and sealant, can impair the operational reliability of the
heat pump. We recommend installing our Brine charging unit
WPSF in the heat source inlet (see chapter "Accessories").
To facilitate the connection to the heat source system, elbow push-
fit connectors are enclosed with the appliance (see chapter "Fitting
the push-fit connectors").
f f Connect one flexible pressure hose each to act as an anti-vi-
bration mount to the "heat source flow" and "heat source
return" connections. The pressure hoses are included as part
of the standard delivery.
The brine volume of the heat pump under operating conditions can
be found in the data table (see chapter "Specification").
The overall volume is equal to the required amount of brine made
by mixing undiluted ethylene glycol and water. The chloride con-
tent of the water must not exceed 300 ppm.
mixing ratio
The brine concentration varies depending on whether a ground
collector or a geothermal probe is used as the heat source.
For the mixing ratio see the table below.
ethylene glycol Water
Geothermal probe 25 % 75 %
Ground collector 33 % 67 %
filling the brine circuit
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1 Drain, brine side
f f Fill the brine circuit via the drain.
After filling the system with brine and prior to commissioning,
open the drain until brine runs out of it. No water must remain in
the pipe run to the drain.