Danfoss DHP-A Installation Manual page 7

Installation Guide
The hot water tank must be equipped with an approved safety valve.
Caution
Heating systems with closed expansion tanks must also be supplied with approved pressure gauges and safe-
Caution
ty valves.
Cold and hot water pipes and overflow pipes from safety valves must be made of heat resistant and corro-
Caution
sion-resistant material, for example copper. The safety valve overflow pipes must have an open connection to
the drain and visibly flow into this in a frost-free environment.
The connecting pipe between the expansion tank and the safety valve must slope continuously upwards. A
Caution
continuous upwards slope means that the pipe must not slope downwards from the horizontal at any point.
If there is any risk of groundwater infiltration at wall lead-ins for brine pipes, watertight grommets must be
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used.
In addition to applicable local rules and regulations the installation should be carried out in a manner that
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prevents vibrations from the heat pump being transmitted into the house causing noise.
2.1 Refrigerant
Work on the refrigerant circuit must only be carried out by a certified engineer!
Caution
Although the heat pump cooling system (refrigerant circuit) is filled with a chlorine-free and environmentally-approved refrigerant that
will not affect the ozone layer, work on this system may only be carried out by authorized persons.
2.2 Fire risk
The refrigerant is not combustible or explosive in normal conditions.
2.3 Toxicity
In normal use and normal conditions the refrigerant has low toxicity. However, although the toxicity of the refrigerant is low, it can cause
injury (or be highly dangerous) in abnormal circumstances or where deliberately abused.
Risk of personal injury! Spaces in which heavy vapour can collect below the level of the air must be well venti-
Warning
lated.
Refrigerant vapour is heavier than air and, in enclosed spaces below the level of a door for example, and in the event of leakage, concen-
trations can arise with a resultant risk of suffocation due to a lack of oxygen.
Risk of personal injury! Refrigerant exposed to a naked flame creates a poisonous irritating gas. This gas can
Warning
be detected by its odour even at concentrations below its permitted levels. Evacuate the area until it has been
sufficiently ventilated.
Danfoss Heating Solutions
Domestic heat pumps
VMGFQ102
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