Sub-Menu Hgw - Danfoss DHP-A Installation Instructions Manual

Menu selection
START FLOW CIRC.
START FLOW BRINE
CONST. FL. CIRC.
CONST. FL. BRINE
MIN FLOW CIRC.
MAX H.W CHARGE HW
MIN CHARGE. HW
9.8

Sub-menu HGW

The menu applies to the Opti Pro-modelswith de-superheater and only appears if ON in SERVICE -> INSTALLATION
-> SYSTEM -> ADDITION -> HGW menu is selected.
Table 24. Used to change the de-superheater's operating settings.
Menu selection
HGW TEMP.
TEMP DIFF
HOT WATER DIFF.
HOT WATER TO RAD. If there is a heat demand, the HGW shunt switches to the heating sys-
MAX TEMP.
START HGW
INITIALIZING HGW
Meaning
Speed control of the heating system's circulation pump in Volts.
Higher voltage gives a greater circulation pump speed, which
gives a lower temperature difference. A low voltage gives a
greater difference.
3 - 10 = Manually adjustable speed, where 3 is low voltage and
10 is high voltage.
Speed control of the brine system's circulation pump in Volts.
Higher voltage gives a greater brine pump speed, which gives a
lower temperature difference. A low voltage gives a greater dif-
ference.
3 - 10 = Manually adjustable speed, where 3 is low voltage and
10 is high voltage.
If TEMP DIFF CIRC is set to
value in the heating system. Value indicated in Volts.
If TEMP DIFF BRINE is set to
value in the brine system. Value indicated in Volts.
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.
Lowest desired supply temperature during water heating.
Meaning
Shows the HGW sensor after the de-superheater (the supply tempera-
ture to water heater) in °C.
Desired difference between the HGW sensor and water heater's start
sensor.
Shows actual difference between the HGW sensor and water heater's
start sensor.
tem when the weighted value is greater than the total of the START
temperature for hot water and this value. Example: 40°+3K = at a tem-
perature 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 sensor in the water heater.
Note! Domestic hot water can have this temperature,
which can mean that an external mixer valve may be
required.
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 towards the water heater is 30 seconds.
The time in seconds before control of HGW shunt starts after HGW start. 60S
the flow is continuous with this
the flow is continuous with this
Installation instructions VMBMA1002 – 61
Factory setting
7V
(range: 3V / 10V)
10V
(range: 3V / 10V)
7V
(range: 3V / 10V)
10V
(range: 3V / 10V)
3V
(range: 3V / 10V)
55°C
(range: 45°C / 65°C)
50°C
(range: 30°C / 65°C)
Factory setting
-
20K
(range: 15K / 35K)
-
3K
(range: 1K / 10K)
95°C
(range: 60°C / 100°C)
7S
(range: 0S / 30S)
(range: 10S / 90S)