Control And Test; Control Of Electric Backups; Sensor And Input Test Mode - Fujitsu WATERSTAGE WOYG160LJL Maintenance Document

Control and test

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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)
(1) subject to authorization by EX2.
(2) provided the outdoor temperature is less than the setting on "2884 or 3700" (+2° from the beginning).
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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 fl ow temperature)
Sensor temp (HP return temperature)
Sensor temp (DHW temperature)
Sensor temp (Outside temperature)
Input (Power shedding, EJP)
Input (Tariff s 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
Waterstage / Maintenance Manual / 2105 - EN
EX 3
External fault
(369)
230 V 0 V
ON "Locked"
ON ON
OFF ON
ON ON
ON ON
ON ON
230 V
OFF
OFF
OFF
OFF
OFF