Parameter Meaning
EXT.AUX.HEATER Activates the function for external auxiliary heater and states how it should be configured.
EXT.AUX.HEATER Switch the external auxiliary heater off and on.
Factory setting: , range: – ON
START Factory setting: -55, range: -1 – 100
STOP Factory setting: 10, range: 100 – 0
OFFSET EXT.A.H Factory setting: -1, range: -5 – 0
TURN OFF DELAY Indicates how long the external auxiliary heater must continue to be active after its
demand is no longer needed.
Factory setting: 0M, range: 0M – 180M
REV.V. HOT WATER Indicates whether the reversing valve for hot water is located before or after the
external auxiliary heater. (Determines whether the external auxiliary heater may
produce hot water.
Factory setting: INT, range: INT – EXT
TOPH. AUX. Indicates whether the external auxiliary heater can be used for anti-legionella. The
reversing valve must be positioned after the external auxiliary heater.
Factory setting: , range: – ON
SHUNT TIME EXT. Indicates the shortest permitted interval between control signals to the shunt.
Factory setting: 60S, range: 10S – 99S
SYS. PUMP COOL
Factory setting: , range: – ON
8.7 MANUAL TEST
Parameter Meaning
MANUAL TEST 0 = deactivate manual test
1 = activate manual test
2 = activate manual test with option of navigating from the SERVICE menu to check that the temperatures rise
for example.
OUTDOOR UNIT 0 = stop outdoor unit
1 = start outdoor unit
SYSTEM CIRC.
PUMP
0 = stop circulation pump system
1 = start circulation pump system
CIRC. PUMP 0-100% for test of speed controlled circulation pump (Only for iTec XT Total EQ).
CONDENSER PUMP 0 = stop condenser pump (0V)
1 = start condenser pump (230V)
CONDENSER PUMP 0-100% for test of speed controlled condenser pump.
Depending on type and number of connected condenser 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 XT Standard, with fixed speed condenser 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 condenser 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
Commissioning iTec XT
Thermia AB AWIXT01CG0102
39
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