Technical data

70
CODES DESCRIPTION TRIP CONDITIONS RESET METHOD
E 444
EVAPORATOR TEMPERATURE
SENSOR FAULT
Evaporator temperature probe fault
Reset may be performed from the CCI/DDC (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Robur TAC.
u 446
HOT INLET WATER TEMPERATURE
TOO HIGH
Hot inlet water temperature higher than upper
operating limit of the appliance (if the appliance
is in operation).
Resets automatically if, with the circulator on, the cause resolves or
(with circulator o) 20 minutes after generation of code.
u 447 LOW HOT WATER TEMPERATURE
Hot water temperature lower than lower
operating limit of the appliance (if the appliance
is in operation).
Reset occurs automatically when cause resolves or 430 seconds
after the code is generated.
E 447 LOW HOT WATER TEMPERATURE
u 447 code generated 3 times in 1 hour of
operation of the circulator.
Reset occurs automatically when the condition that generated the
code ceases. If the code persists, contact authorised Robur TAC.
u 448
HOT WATER DIFFERENTIAL
TEMPERATURE TOO HIGH
High hot water dierential temperature.
Reset occurs automatically 20 minutes after the operating code is
generated.
E 448
HOT WATER DIFFERENTIAL
TEMPERATURE TOO HIGH
u 48 code generated twice in 2 hours of
operation.
Reset may be performed from the CCI/DDC (or from the S61 board
via menu 2, parameter 21).
E 449 SATELLITE BOARD NOT PRESENT Satellite board not present.
Reset occurs automatically when the condition that generated the
code ceases.
u 452 DEFROSTING FUNCTION ACTIVATED
Defrosting function activated. Defrosting is
activated if at least 90 minutes has passed since
the last defrosting (or 180 minutes if temperature
is inferior of -5°C), if the ame control unit has
been on for at least 15 minutes, and if room
temperature, temperature of hot inlet water and
of the evaporator require its execution.
The Code clears automatically when execution of defrosting ends.
u 453
WATER FLOW IN HOT PASSIVE
MODULE
Warning is generated if system operating in
conditioning mode and the owmeter of the hot
module is closed.
Reset is automatic and occurs when the condition that generated
it ceases to apply.
u 478
OUTLET HOT WATER TEMPERATURE
TOO HIGH
Outlet hot water temperature too high
Reset is automatic and occurs when the condition that generated
it ceases to apply.
u 479
DEFROST FUNCTION ACTIVATED -
HOT SIDE
Activation takes place only if the
hot module is o and the antifreeze
function is enabled (see menu 1,
parameter 163).
Antifreeze function activated (with function
enabled: see menu 1, item163; and only with
machine o). In this case the antifreeze function
activates the plant water circulator. If this
temperature falls further to below 3 °C, the
function also activates the ame controller.
Resets automatically (defrost function disabled) if, with only the
circulator operating, the hot water inlet/outlet temperature rises
above 5°C (at which point the circulator switches o); or, if also the
ame controller is on, when the temperature reaches 18 °C (in this
case the ame controller and then the circulator switch o).
u 480 INCOMPLETE PARAMETERS Incomplete parameters.
The code remains until operating parameters are entered and
completed. Contact authorised Robur TAC. If the board is replaced,
Code E 80 may appear; this means that the unit’s characterisation
parameters have not been set.
E 80/480 INVALID PARAMETERS
Invalid parameters or damage to parameter
memory.
Reset occurs automatically when correct parameters are entered. If
the code persists, contact authorised Robur TAC: if the parameters
are incorrect, it is necessary to enter and complete the unit
operating and characterisation parameters; if the memory is
damaged, the controller must be replaced.
u 481 INVALID BANK 1 PARAMETERS Invalid Bank 1 data - Bank 2 data OK. Reset occurs automatically 5 seconds after the code is generated.
E 481 INVALID BANK 1 PARAMETERS
The program attempts to resolve the problem by
writing the second page over the rst; if after 3
attempts this fails, the error is generated.
Reset may be performed from the CCI/DDC (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Robur TAC.
u 482 INVALID BANK 2 PARAMETERS Invalid Bank 2 data - Bank 1 data OK. Reset occurs automatically 5 seconds after the code is generated.
E 482 INVALID BANK 1 PARAMETERS
The program attempts to resolve the problem by
writing the rst page over the second; if after 3
attempts this fails, the error is generated.
Reset may be performed from the CCI/DDC (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Robur TAC.
E 484
FAULTY TRANSFORMER
CONNECTION OR 24 V AC FUSES
Damage to one of the 2 24-0-24 V AC transformer
fuses, or one of 24-0-24 V AC wires to the board
not supplying current.
Check fuses and 24-0-24 V AC electrical power connections on the
controller. Reset may be performed from the CCI/DDC (or from the
S61 board via menu 2, parameter 21). If the code persists or occurs
again, contact authorised Robur TAC.
E 485
INCORRECT MODULE TYPES (from
menu 6)
The set module type (from menu 6) does not
correspond to the one managed by the controller.
Reset occurs automatically when correct parameters are entered. If
the code persists, contact authorised Robur TAC.
E 486 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Robur TAC.
E 487 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Robur TAC.
E 488 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Robur TAC.
E 489 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Robur TAC.
E 490
AMBIENT TEMPERATURE SENSOR
DEFECTIVE
Interruption or short circuit of ambient
temperature sensor.
Reset may be performed from the CCI/DDC (or from the S61 board
via menu 2, parameter 1). If the code persists or occurs again,
contact authorised Robur TAC.
E 491 CONTROLLER DEFECTIVE
One of the following is absent: serial number of
board, hardware version code or encryption key
written during board test.
Contact authorised Robur TAC.