Danfoss DHP-H, User Manual, Page: 4 / 46

Danfoss – VUBMA102
1 Important information
• If the installation is not used during the winter, the heating system must be drained of
water, otherwise there is a risk of frost damage to the installation. (Contact an authorized
installer, see the ”References” section.)
• The installation can be considered maintenance free but certain checks are necessary (see
“Regular checks” section).
• Before changing the control computer’s settings, first find out what these changes mean.
• Contact your installer for any service work.
1 .1 safety precautions
1 .1 .1 Installation and maintenance
• Only authorized installers may install, operate and carry out maintenance and repair work
on the heat pump. (See the ”References” section)
• Only authorized electricians may modify the electrical installation. (See the ”References”
section)
DanGer TO lIFe!
Only authorized refrigeration technicians may work on the refriger-
ant circuit. (See the ”References” section).
1 .1 .2 system modifications
Only authorized installers may carry out modifications on the following components:
• The heat pump unit
• The pipes for the refrigerant, brine, water and power
• The safety valve
You must not carry out construction installations that may affect the operational safety of the
heat pump.
1 .1 .3 safety valve
The following safety precautions apply to the hot water circuit’s safety valve with correspond-
ing overflow pipe:
• Never block the connection to the safety valve’s overflow pipe.
• Water expands when it is heated, this means that a small amount of water is released
from the system via the overflow pipe. The water that exits the overflow pipe can be hot!
Therefore, allow it to flow to a floor drain where there is no risk of burning yourself.
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