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Split system single phase type
1 Control and test
1 1
Control of Electric Backups
H 33
Outdoor
Unit Fault
(370)
EJP lock signal
(l 2920)
HEAT PUMP
OFF
DHW auxiliary
ON (1)
1st stage elec.
ON (2)
auxiliary
2nd stage elec.
ON (2)
auxiliary
Boiler backup
ON (2)
subject to authorization by EX2
(1)
provided the outdoor temperature is less than the setting on "2884 or 3700" (+2° from the beginning)
(2)
1 2
Sensor and Input Test Mode
LINE
SENSOR INPUT
7700
7710
7712
7722
7723
7724
7725
7820
BX1
7821
BX2
7822
BX3
7823
BX4
7911
EX1
7912
EX2
7913
EX3
7973
BX31
7976
BX34
7996
H33
- 4 -
EX 1
Load-shedding (EJP)
0 V
230 V
"released"
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
ON
OUTPUT WATERSTAGE
QX
Relay test
UX1
Output test
UX1
PWM-Signal
DO2
Cooling mode
D3
Heat pump
UX3
Output test ("Inverter" command)
UX3
Voltage signal (Ux3)
Sensor temp (HP flow temperature)
Sensor temp (HP return temperature)
Sensor temp (DHW temperature)
Sensor temp (Outside temperature)
Input (Power shedding, EJP)
Input (Tariffs day/night)
Input (External fault)
Sensor temp (Mixing circuit temp )
Sensor temp (Swimming pool exchanger temperature)
Contact state
EX 2
Off-peak/peak hours
230 V
0 V
"locked"
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
ON
EX 3
External fault
(369)
230 V
0 V
ON
"locked"
ON
ON
OFF
ON
ON
ON
ON
ON
ON
ON
Maintenance document "1792 - EN"
230 V
OFF
OFF
OFF
OFF
OFF
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