Check Points - Danfoss DHP-H Installation And Service Instructions Manual

15.3

Check points

Temperatures
Name
Condensing temperature
Evaporation temperature
Overheating
Radiator circuit
Brine circuit
Overheating R407C
Expansion valve factory setting
Name
Danfoss TUBE R404A, 4.2 kW
Danfoss TUBE R404A, 5.6 kW
Danfoss TUBE R404A, 8.4 kW
Danfoss TUBE R404A, 12.0 kW
Danfoss TUBE R404A, 15.3 kW
Danfoss TUBE R407C, 11.0 kW
Danfoss TUBE R407C, 17.0 kW
Break pressure pressure switches
Refrigerant Pressostat
R407C Low pressure switch
Operating pressure switch A
Operating pressure switch B
High pressure switch
R134a Low pressure switch
(Only applies for
Operating pressostat
certain models
High pressure switch
of DHP-C)
R404A Low pressure switch
(Only applies to
Operating pressure switch A
DHP-A, -AL)
Operating pressure switch B
High pressure switch
64
Values
0.5 – 1.5 °C above supply line temperature
7 - 8 °C lower than incoming brine
4 - 8 K temperature difference
5 - 10 K temperature difference
2 - 5 K temperature difference
4K ±1 K
Setting
From fully closed position, screw 3 turns out
From fully closed position, screw 5.5 turns out
From fully closed position, screw 5 turns out
From fully closed position, screw 5.25 turns out
From fully closed position, screw 2.75 turns out
From fully closed position, screw 6.25 turns out
From fully closed position, screw 5.5 turns out
Break pressure
0.08 MPa
2.65 MPa
2.85 MPa
3.10 MPa
0.03 MPa
1.80 MPa
2.45 MPa
0.08 MPa
2.65 MPa
2.85 MPa
3.10 MPa
VMBMA602