Parameter
Meaning
CIRC. PUMP
0-10V for test of speed controlled circulation pump.
Depending on type and number of connected circulation pumps, this parameter will contain different informa-
tion.
In the event of pumps with fixed speed, the selection 0 = stop and 1 = start are available
For iTec Standard, with fixed speed circulation pump, the flow has to be set from MANUAL TEST. Make sure the
"F" symbol is present in the display after finishing the test. If not, check the system for air, and that the flow
switch is correctly installed. Also consider if the size of the circulation pump is sufficient for the system.
REV.V. HOT WATER 0 = reversing valve in heating mode
1 = reversing valve in hot water mode
IMM. HEAT 1
0 = stop of internal immersion heater power stage 1
1 = start of internal immersion heater power stage 1
IMM. HEAT 2
0 = stop of internal immersion heater power stage 2
1 = start of internal immersion heater power stage 2
IMM. HEAT 3
0 = stop of internal immersion heater power stage 3
1 = start of internal immersion heater power stage 3
EXT.AUX.HEATER
0 = stop external heat source (230V)
1 = start external heat source (230V)
POT.FREE
0 = potential free output for control of auxiliary heater open
1 = potential free output for control of auxiliary heater closed
CIRC. PUMP DC 1
0 = stop circulation pump in discharge circuit 1
1 = start circulation pump in discharge circuit 1
SHUNT DC 1
– = closes shunt in discharge circuit 1
0 = shunt unaffected
+ = opens shunt in discharge circuit 1
CIRC. PUMP DC 2
0 = stop circulation pump in discharge circuit 2
1 = start circulation pump in discharge circuit 2
SHUNT DC 2
– = closes shunt in discharge circuit 2
0 = shunt unaffected
+ = opens shunt in discharge circuit 2
BY-PASS COOLING
0 = closed, normal for heating
1 = open, during cooling
SYSTEM SHUNT
– = closes shunt
0 = shunt unaffected
+ = opens shunt
RET.L. HP SHUNT
– = closes return line shunt in systems with buffer tank
0 = shunt unaffected
+ = opens shunt in systems with buffer tank
REV. V. POOL
0 = reversing valve in normal mode
1 = reversing valve in pool mode
ALARM
0 = no voltage on output 201.6 External alarm
1 = 230V on output 201.6 External alarm
5.2
Test the circulation pump
Optimum (variable speed) circulation pump
N
If a fixed speed circulation pump is used, may be the case for iTec
Standard, do the test according to the next chapter: "Constant speed
circulation pump"
Optimum (variable speed) circulation pump is factory installed in iTec Total. The OPTIMUM option is however not activated from factory.
Commissioning
iTec
Thermia Värmepumpar
VIJSR102
21
Содержание iTec
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