Sub-Menu Hgw - Danfoss DHP-A Installation Manual

Installation Guide
Menu selection Meaning
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.
Highest supply temperature during water heating.
MAX H.W
CHARGE HW
Lowest desired supply temperature during water heating.
MIN CHARGE.
HW
MIN TEMP BRINE Lowest allowed temperature for the cold carrier.
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
HGW TEMP. Shows the HGW sensor after the de-superheater (the supply temperature to water heater) in °C.
Desired difference between the HGW sensor and water heater's start sensor.
TEMP DIFF
HOT WATER Shows actual difference between the HGW sensor and water heater's start sensor.
DIFF.
If there is a heat demand, the HGW shunt switches to the heating system when the weighted
HOT WATER
value is greater than the total of the START temperature for hot water and this value. Example:
TO RAD.
40°+3K = at a temperature of 43°C in the water heater, the shunt switches to the heating system.
Max temperature of the water in the water heater. The temperature is measured on the peak
MAX TEMP.
sensor in the water heater.
The number of seconds the HGW shunt is to open at HGW start is the starting point of shunt
START HGW
opening. The opening time for the HGW shunt from fully closed to fully open towards the water
heater is 30 seconds.
The time in seconds before control of HGW shunt starts after HGW start.
INITIALIZING
HGW
INTEGRAL DE- Delay of integral calculation in seconds after the integral value for HGW has been reached.
LAY
The time that the signal is active to open or close the HGW shunt completely.
HGW-SHUNT
TIME
Integral value (parameter) for HGW.
HGW INT.
BOUND.
Shows the actual value for the HGW integral. Plus indicates that the shunt opens towards the
HGW INTE-
GRAL water heater and minus indicates that the shunt opens towards the heating system.
How long the plus or minus signal to the shunt is to be high when the HGW integral has been
PULSE WIDTH
reached.
Danfoss Heating Solutions
Domestic heat pumps
Domestic hot water can have this temperature, which can mean that
N
an external mixer valve may be required.
VMGFQ102
Factory setting
3V(range: 3V / 10V)
55°C(range: 45°C /
65°C)
50°C(range: 30°C /
65°C)
8°C(range: 6°C /
20°C)
Factory setting
-
20K(range: 15K /
35K)
-
3K(range: 1K /
10K)
95°C(range: 60°C /
100°C)
7S(range: 0S /
30S)
60S(range: 10S /
90S)
10S(range: 5S /
120S)
35S(range: 15S /
60S)
60(range: 10 /
120)
-
0.25S(range:
0.20S / 1.00S)
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