Heat Pump - Fujitsu WGYA050DG6 Design & Technical Manual

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Diagnostics heat generation functions
Various setpoints and actual values, relay switch
status data can be displayed for purposes of
diagnosis.

Heat Pump

LINE FUNCTION
Electric immersion heater 1 flow
8402
Electric immersion heater 2 flow
8403
8406 Condenser pump
These lines are used to check the operating mode
of the components controlled by the heat pump
relays. The display "0" means that the associated
components are currently disconnected. The
display "1" means that the associated components
are currently switched on.
Setpoints and Measured Values
LINE FUNCTION
8410 Return temp HP
8412 Flow temp HP
8413 Compressor modulation
Modulation electric flow
8414
8425 Temp diff condenser
These lines allow the various setpoints and
measured values for the heat pump to be viewed.
Hour / Startup Counter
LINE FUNCTION
8450 Hours run compressor 1
8454 Locking time HP
8455 Counter number of locks HP
Hours run electric flow
8456
Start counter electric flow
8457
Hours run compressor 1
This operating line shows the total number of
hours run of compressor 1 since it was first
commissioned.
Locking time HP
Displays the cumulative locking time since start-
up by the electrical services (via external locking
signal).
Information:
This information applies to relays defined as
normally open contacts. For normally closed
contacts, the action is reversed.
Counter number of locks HP
Displays the cumulative locks since start-up by the
electrical services (via external locking signal).
Hours run electric flow, Start counter
electric flow
These lines are used to view the hours of operation
and the number of start-up of electric heater.
- (CS01 - 63) - - (CS01 - 63) -
Control system