Installation guide

Menu selection Meaning Factory setting
CONST. FL. BRINE
If TEMP DIFF BRINE is set to
the flow is continuous with this value in the brine system.
Value indicated in Volts.
10V(range: 3V /
10V)
MIN FLOW CIRC. Lowest permitted voltage (speed) of the circulation pump’s flow in the heating system. If
there is no heat demand, there may still be a demand to read in the temperatures for the
sensors in the system and the circulation pump therefore must be run.
3V(range: 3V /
10V)
MIN FLOW BRINE Lowest permitted voltage (opening degree) of the two way valve controlling the speed
of the cold carrier circuit.
N
Applies to DHP-C Opti W/W.
2V(range: 2V /
10V)
MAX H.W CHARGE HW Highest supply temperature during water heating. 55°C(range:
45°C / 65°C)
MIN CHARGE. HW Lowest desired supply temperature during water heating. 50°C(range:
30°C / 65°C)
MIN TEMP BRINE Lowest allowed temperature for the cold carrier.
N
Applies to DHP-C Opti W/W.
8°C(range: 6°C /
20°C)
9.8 Sub-menu HGW
The menu applies to the heat pumps with de-superheater and only appears if ON in SERVICE -> INSTALLATION -> SYSTEM -> ADDITION -
> HGW menu is selected.
Menu selection Meaning Factory setting
HGW TEMP. Shows the HGW sensor after the de-superheater (the supply temperature to water heat-
er) in °C.
-
TEMP DIFF Desired difference between the HGW sensor and water heater’s start sensor. 20K(range: 15K /
35K)
HOT WATER DIFF. Shows actual difference between the HGW sensor and water heater’s start sensor. -
HOT WATER TO RAD. If there is a heat demand, the HGW shunt switches to the heating system when the
weighted value is greater than the total of the START temperature for hot water and this
value. Example: 40°+3K = at a temperature of 43°C in the water heater, the shunt
switches to the heating system.
3K(range: 1K /
10K)
MAX TEMP. Max temperature of the water in the water heater. The temperature is measured on the
peak sensor in the water heater.
N
Domestic hot water can have this temperature, which can
mean that an external mixer valve may be required.
95°C(range:
60°C / 100°C)
START HGW The number of seconds the HGW shunt is to open at HGW start is the starting point of
shunt opening. The opening time for the HGW shunt from fully closed to fully open to-
wards the water heater is 30 seconds.
7S(range: 0S /
30S)
INITIALIZING HGW The time in seconds before control of HGW shunt starts after HGW start. 60S(range: 10S /
90S)
INTEGRAL DELAY Delay of integral calculation in seconds after the integral value for HGW has been
reached.
10S(range: 5S /
120S)
HGW-SHUNT TIME The time that the signal is active to open or close the HGW shunt completely. 35S(range: 15S /
60S)
HGW INT. BOUND. Integral value (parameter) for HGW. 60(range: 10 /
120)
HGW INTEGRAL Shows the actual value for the HGW integral. Plus indicates that the shunt opens towards
the water heater and minus indicates that the shunt opens towards the heating system.
-
PULSE WIDTH How long the plus or minus signal to the shunt is to be high when the HGW integral has
been reached.
0.25S(range:
0.20S / 1.00S)
Danfoss Heating Solutions VMGFQ202
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Installation Guide Domestic heat pumps