Danfoss DHP-AX Installation And Service Instructions Manual page 40

Menu selection
VERSION
LOG TIME
TOPH. TIME
13.2.6 Sub menu SERVICE -> DEFROST
Used to change settings for heat pump defrost.
Menu selection
DEFR CURVE 0
DEFR CURVE -XX
STOP DEFR
BELOW 5°C DEFR
MIN TIME DEFR
MIN RAD STMP
FAN START
FAN STOP
REFR 3
40 – Service
Meaning
Shows the software version which is stored on the display card
respectively the I/O-card.
DISPLAY: V n.n
I/O-CARD: V n.n
Time interval between collection points of temperature history
in minutes. The history graphs always show the 60 last collection
points, which means that the graphs can display history from 1
hour up to 60 hours ago.
(The function is not active if there is an active alarm).
= Deactivates time period for peak heat charging.
ON = Activates time period for peak heat charging.
Meaning
The temperature of the heat pump's incoming refrigerant at
which defrosting should start, at 0°C outdoor temperature is set
here, using + or -.
The graph can be changed up or down at 0°C outdoor tempe-
rature in the display. See section 11.5 Important parameters for
further information.
The temperature of the heat pump's incoming refrigerant at
which defrosting should start, at the set outdoor temperature for
OUTDOOR STOP is set here, using + or -.
The setting is made by reducing the OUTDOOR STOP value by
this value.
The number of degrees shown after DEFR CURVE in the display is
the set value for OUTDOOR STOP. The combined temperature is
shown in the top right corner of the display.
The graph can be changed up or down at the outdoor tempera-
ture OUTDOOR STOP in the display. See section 11.5 Important
parameters for further information.
The temperature that must be reached on incoming refrigerant
to complete a defrost.
Safety defrosting occurs when the outdoor temperature has
been below 5° for a set number of days.
Minimum time between two defrosts in minutes.
Minimum permitted supply temperature during defrost, at
which the electric auxiliary heater engages.
The fan starts when the temperature of the incoming refrigerant
to the heat pump reaches the set value.
If FAN START is set to ON, the fans starts and stops at the same
time as the compressor and the FAN STOP parameter is inactive.
The fan stops when the temperature of the incoming refrigerant
to the heat pump reaches the set value.
Shows the temperature at refrigerant sensor 3.
VMBMH302
Factory setting
-
1M (interval: 1M / 60M)
Factory setting
-10°C
(interval: -16°C / 0°C)
OUTDOOR STOP reduced
by 4°C
(interval: -5°C / -1°C)
30°C (interval: 7°C / 60°C)
7D
(interval: , 1D / 14D)
45M
(interval: 10M / 60M)
20°C
(interval: 16°C / 30°C)
-2°C
(interval: ON, -5°C / FAN
STOP-3°C)
17°C
(interval: FAN START+3°C
/ 30°C)