Thermia Calibra Cool, Installation Manual

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1.5 Scrapping
Caution
When the heat pump is to be scrapped the refrigerant must be extrac-
ted for disposal. Local rules and regulations related to the disposal of
refrigerant and heat pump must be followed.
1.6 How to empty water tank before scrapping
1. Turn off the power.
2. Turn off the water supply from the main water supply line.
3. Empty the tank from the top (hot water line) using a siphon hose.
1.7 Water quality
This heat pump and its components is developed to reliable and efficient work with water qualities in line with VDI 2035. In practice this
means that some general precautions should be taken:
As a heating system often contains small amounts of suspended solids (rust) and sludge products from calcium oxide, precaution should
be taken to ensure that the water in the heating system is as clean as possible to ensure long lasting performance and minimize the risk
of reliability issues. If magnetite can be expected in the heating system, cleaning of system and /or installation of magnetite filters
should always be considered. Any filters supplied with the heat pumps should always be installed. The dirt strainer should be fitted on
the return line from the heating system, as close to the heat pump as possible.
Heating system, hot water and brine circuit
Chemical and/or oil contamination shall always be avoided. In areas where there are exceptional water conditions with regards to hard
water, a softening filter may be necessary to use/install. The softening filter softens the water, cleans any impurities and prevents the
buildup of calcification. The hot water tank is designed to work well in all normal drinking water qualities in line with the European
drinking water directive ( 98/83/EC ). With regards to chloride level this means that it is approved to up to 250 mg/l.
1.8 Field of application
Calibra Cool exists in 2 different versions:
Calibra Cool 7 400V BW is equipped with a built in brine pump and is only intended for applications where the cold carrier is protected
from freezing.
Calibra Cool 7 400V WW is designed for installations where multiple heat pumps share a single heat source in an open well application.
Instead of a brine pump, an built-in self-correcting 2-way valve is fitted to allow stable operating conditions for the heat pump even in
the case of fluctuations on the external heat source, such as the external distribution pump is powering up or down. The inbuilt valve
limits the heat source flow to 1900 l/h. The WW version is permitted to install with clean water as heat source carrier. Settings & internal
heat pump protection functions for freeze protection must never be altered with. The WW model must have a pressurized heat source
supply. For other applications such as installations with single heat pumps , higher heat source flows or heat source supply temperatures
lower than + 8 deg C, please contact Thermia in advance for advice .
Installation Guide Calibra Cool
BWCC01IG0102 Thermia AB
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