Parameter Submenu Meaning
VERSION Indicates the version number of the software in the control.
DISPLAY
HUB
COMM.KIT
MAIN MICOM
INV. MICOM
EEPROM
EXP
LOG TIME Time interval between collection points of temperature history in minutes.
The history graphs always show the 60 last collection points, which means that the graphs can display history
from 1 hour up to 60 hours ago.
(The function is not active if there is an active alarm).
Factory setting: 1M, range: 1M – 60M
8.8 DEFROST
It is important to know the source where the energy for defrosting is
taken when finding a min. flow. If the parameter ENERGY PR. H.W. is
OFF, the energy is taken from the heating system. If the parameter is
ON, the energy is taken from the water heater.
Parameter Meaning
COMPR. STOP
Factory setting: , range: – ON
ENERGY PR.H.W Prioritized energy source is hot water when defrosting.
Factory setting: , range: – ON
8.9 OPTIMUM
Parameter Meaning
TEMP DIFF CIRC. Desired temperature difference between supply and return line for the heating system.
Factory setting: 8°C, range: 0°C – 15°C,
START FLOW CIRC. Setting the speed a speed controlled circulation pump must start with.
Check using MANUAL TEST -> CIRC. PUMP which speed gives sufficient flow. This is indicated by ”F”in the dis-
play (flow sensor closed).
The start flow is maintained one minute before control goes to speed control the circulation pump.
Factory setting: 7V, range: 3V – 10V
CONST. FL. CIRC.
If TEMP DIFF CIRC. is set to the flow is continuous with this value in the heating system.
Value indicated in Volts.
Factory setting: 7V, range: 3V – 10V
MIN FLOW HEAT Minimum flow allowed during heat production for home and pool heating.
Factory setting: 8V, range: 3-10V
MIN FLOW H.W Minimum flow allowed during hot water production.
Factory setting: 8V, range: 3-10V
MIN FLOW COOL Minimum flow allowed during cooling mode.
Factory setting: 8V, range: 3-10V
IDLE FLOW Shows the current value in Volts, when there are no demands active.
Factory setting: 5V, range: 3-10V
MAX H.W CHARGE Highest supply temperature during water heating.
Factory setting: 50°C, range: 45°C – 65°C
Commissioning iTec
VIJSR102 Thermia Värmepumpar
38
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