Sub-Menu Aux. Heater - Danfoss DHP-A Installation Instructions Manual

Menu selection
SHUNT TIME
SHUNT COOLING
9.3

Sub-menu AUX. HEATER

Table 19. Used to change the heat pump stages' operating settings.
Menu selection
MAX STEP
INTEGRAL A2
HYSTERESIS
MAX CURRENT
HOT WATER STOP
DELAY AFTER EVU
EXT.AUX.HEATER
Meaning
Time in seconds. Indicates how often the shunt is to adjust its
opening.
The cooling shunt works towards the set temperature.
Meaning
Maximum number of permitted steps for auxiliary heating.
auxiliary heating permitted (Means that only AUTO or HEAT PUMP
can be selected.)
Two conditions must be fulfilled in order to start the auxiliary heater:
the integral's value to start must be less than integral A2, and the
supply temperature must be 2°C lower than the calculated tempera-
ture. See Important parametersfor more information.
If the difference between the actual supply temperature and the cal-
culated supply temperature is too great (see Important parameters),
either the integral value is set to start value A2 (starts the auxiliary
heater) or to 0 (stops the auxiliary heater ).
Refers to main fuse in the unit, in amperes
Stop temperature for hot water during AUX. HEATER. The value is
read off by the hot water sensor.
Time in minutes. Indicates how many minutes after EVU are to pass
before the auxiliary heater may be activated.
Menu selection
EXT.AUX.HEATER
INTEGRAL A3
TURN OFF DELAY
REV.V. HOT WATER
TOPH. AUX
Meaning
Indicates whether an external
auxiliary heater is installed in the
system.
Indicates the value of the integral
when external auxiliary heater is
connected.
Indicates how long the external
auxiliary heater must continue to
be active after its demand is no
longer needed.
Indicates whether the exchange
valve for hot water is located
before or after the external auxili-
ary heater. (Determines whether
the external auxiliary heater may
produce hot water.)
Indicates whether the external
auxiliary heater can be used for
anti-legionella. The exchange
valve must be positioned after
the external auxiliary heater.
Installation instructions VMBMA1002 – 55
Factory setting
60S
(range: 10S / 99S
18°C
(range: 0°C / 30°C)
Factory setting
= no
(range: , 1, 2, 3, 4, 5, +4,
+5)
-600
(range: -50 / -990)
20°C
(range: 5°C / 30°C)
20
(range: 16 / 35)
60°C
(range: 50°C / 65°C)
30M
(range: 0M / 120M)
/ ON
-300
(range: -990 / INTEGRAL A1
- 10)
0M
(range: 0M / 180M)
INT / EXT
/ ON