WATERKOTTE EcoTouch DS 5027 Ai, Планирование и руководство по установке

Страница: 28 / 60

Installation and connection
2005/06/10
28 / 60
Copyright

2013 by: WATERKOTTE GmbH. Subject to changes.
7.3.1 Water glycol systems
Since the EcoTouch DS 5027 Ai is already equipped with a heat source
pump, the heat source system can be directly connected to the heat pump.
There is no need for an additional heat source module. To prevent frost
damage, the heat source system must be filled with about 30 %
WATERKOTTE ethylene glycol (freezing point at about -15 °C). The heat
source system must be properly filled with the operating media and vented.
7.3.2 Groundwater heat source
For groundwater heat pumps the installation of a separation heat exchanger
is absolutely essential to avoid direct damage to the heat pump. The inter-
mediate circuit must be filled with about 15 % ethylene glycol. The following
WATERKOTTE accessories are required for groundwater application:

Filter

Flow monitoring

Separating heat exchanger
7.3.3 Groundwater quality
When using groundwater, the following limits (see table and diagram) must
be observed. If limits are exceeded, a separation heat exchanger is used.
The soldered plate heat exchanger consists of embossed stainless steel
plates 1.4401 or AISI 316. You must therefore take the corrosion behav-
iour of stainless steel and the solder material, copper, into account.