START DELAY Gives the time that the start of the auxiliary heater is delayed after a temperature reduction
or EVU stop.
Factory setting: 30M, range: 0M – 120M
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
INTEGRAL A3: Indicates the value of the integral when external auxiliary heater is connec-
ted.
Factory setting: -300, range: -990 – A1 - 10°min
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. EXT. 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
SHUNTTIME EXT.: Indicates the shortest permitted interval between control signals to the
shunt.
Factory setting: 60S, range: 10S – 99S
10.6 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.
COMPRESSOR 0 = stop compressor
1 = start compressor
CIRC. PUMP SYSTEM 0 = stop circulation pump system
1 = start circulation pump system
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 information.
In the event of pumps with fixed speed the selection 0 = stop and 1 = start are available
FAN 0-10V for test of the speed controlled fan
FOUR-WAY VALVE 0 = four way valve is set for heating
1 = four way valve is set for defrosting/cooling
EXPANSION VALVE 0 - 100% for test of electronic expansion valve.
SOLENOID 0 = closed solenoid
1 = open solenoid
COMPR.HE 0 = compressor heater off
1 = compressor heater on
Installation instructions VMGFD102 – 57
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