Refrigerant; Scrapping; Electrical Connection - Danfoss DHP-AX Installation And Service Instructions Manual

D B BB
Bleed valves must be installed where necessary.
D B BB
Radiator systems with closed expansion tanks
must also be supplied with approved pressure
gauges and safety valves.
D B BB
Cold and hot water pipes and overflow pipes
from safety valves must be made of heat resist-
ant and corrosion-resistant material, e.g. copper.
The safety valve overflow pipes must have an
open connection to the drain and visibly flow
into this in a frost-free environment.
D B BB
The connecting pipe between the expansion
tank and the safety valve must slope continu-
ously upwards. A continuous upwards slope
means that the pipe must not slope downwards
from the horizontal at any point.
2.2

Refrigerant

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 author-
ized persons.
2.2.1 Fire risk
The refrigerant is not combustible or explosive in normal
conditions.
2.2.2 Toxicity
In normal use and normal conditions the refrigerant has
low toxicity. However, although the toxicity of the refriger-
ant is low, it can cause injury (or be highly dangerous) in
abnormal circumstances or where deliberately abused.
A B BB
Danger! Risk of personal injury! Spaces in
which heavy vapour can collect below the level
of the air must be well ventilated.
Refrigerant vapour is heavier than air and, in enclosed
spaces below the level of a door for example, and in the
event of leakage, concentrations can arise with a resultant
risk of suffocation due to a lack of oxygen.
A B BB
Danger! Risk of personal injury! Anyone with
symptoms of poisoning from the vapour must
immediately move or be moved into the fresh
air.
A B BB
Danger! Risk of personal injury! Refrigerant
exposed to a naked flame creates a poisonous
irritating gas.
This gas can be detected by its odour even at concentra-
tions below its permitted levels. Evacuate the area until it
has been sufficiently ventilated.
2.2.3 Work on the refrigerant circuit
D B BB
Work on the refrigerant circuit must only be car-
ried out by a certified engineer!
D B BB
When repairing the refrigerant circuit, the refrig-
erant must not be released from the heat pump,
it must treated in the applicable way.
Draining and refilling must only be carried out using new
refrigerant (for the amount of refrigerant see manufac-
turer's plate) through the service valves.
D B BB
All warranties from Danfoss are void if, when
filling with refrigerant other than Danfoss AS
recommended refrigerant, it has not been noti-
fied in writing that the new refrigerant is an
approved replacement refrigerant together with
other remedies.
2.3

Scrapping

D B BB
When the heat pump is to be scrapped the
refrigerant must be extracted for destruction.
Local rules and regulations related to the dis-
posal of refrigerant must be followed.
2.4

Electrical connection

D B BB
Electrical installation may only be carried out by
an authorized electrician and must follow appli-
cable local and national regulations.
D B BB
The electrical installation must be carried out
using permanently routed cables. It must be
possible to isolate the power supply using an all-
pole circuit breaker with a minimum contact gap
of 3 mm.
VMBMH302 Installation – 5