9
SERVICE menu
The SERVICE menu is for use during installation and service to optimise and adjust the operation of the heat pump. Open the menu by
pressing the left button for five seconds.
N
The menu information below describes all possible parameters. The parameters that appear in the display
vary depending on the selections made in menus (e.g. type of heat pump) and on the connected hardware
(e.g. expansion card and defrost card).
▪
SERVICE
▪
HOT WATER
▪
HEAT PUMP
▪
AUX. HEATER
▪
MANUAL TEST
▪
INSTALLATION
▪
DEFROST
▪
OPTIMUM
▪
HGW
9.1
Sub-menu HOT WATER
Menu selection
Meaning
Factory setting
START
Start temperature for hot water production. Shows the actual weighted hot water tem-
perature and the value within brackets indicates the start temperature. (
= no hot wa-
ter production)
(range:
, 30°C /
55°C)
HOT WATER TIME Time for hot water production during combined hot water and heating demand, in mi-
nutes.
20M(range: 5M / 40M)
HEATING TIME
Time for hot water production during combined heating and hot water demand, in mi-
nutes.
20M(range: 5M / 40M)
TOPH. INTERVAL
Time interval between peak heating charging (anti-legionella function) in days. Operat-
ing mode that permits auxiliary heater must be selected.
7D(range:
, 1D /
90D)
TOPH. TIME
Time in hours that the legionella demand is to be fulfilled for legionella operation to be
considered complete.
(range:
, 1M /
10M
TOPH. STOP
Stop temperature for peak heat charging. Operating mode that permits auxiliary heater
must be selected.
60°C(range: 50°C /
65°C)
INFL. H.W SEN-
SOR.
Water heater sensor’s influence compared with the peak sensor’s at start of water heat-
ing.
65%(range: 0% / 100%)
WEIGHT HOT WA-
TER
The calculated value of the hot water sensor directed towards the peak sensor.
-
9.2
Sub-menu HEAT PUMP
Menu selection
Meaning
Factory setting
INTEGRAL A1
The integral’s value for starting the heat pump. See Service instructions for more infor-
mation.
-60°min(range:
-250°min / -5°min)
HYSTERESIS
If the difference between the actual supply temperature and the calculated supply tem-
perature is too great either the integral value is set to start value A1 (the heat pump
starts) or the value is set to 0 (stops the heat pump).
10°C(range: 1°C / 15°C)
MAX RETURN
Stop temperature at high return from the heating system.
55°C(range: 30°C / 70°C)
START INTER-
VAL
Minimum time interval between two heat pump starts in minutes.
20M(range: 10M / 30M)
Installation Guide
Domestic heat pumps
Danfoss Heating Solutions
VMGFQ102
43
