Diagnostics
Installation, use and maintenance manual – Gitié ARAY
41
8
630
High flue gas or generator fins
temperature
Reset is automatic when the triggering condi-
tion ceases.
Reset may be performed from the DDC or from the S61 board (menu
2, parameter 1).
If the code persists, shows up again or in case of doubt, contact the
TAC.
631
Hot water temperature exceeding
operational limits
Check configuration of other heat generators
on the system.
Check water flow.
Check system thermal load.
Reset is automatic when the triggering condi-
tion ceases.
NA
632
Chilled water temperature exceed-
ing operational limits
Check configuration of other chillers on the
system.
Check water flow.
Check system’s chilling load.
Reset is automatic when the triggering condi-
tion ceases.
NA
634
-
Contact the TAC.
NA
644
Evaporator temperature probe
fault
NA
Reset is automatic in case of switching from “hot” to “cold” mode.
Reset may be performed from the DDC or from the S61 board (menu
2, parameter 1).
If the code persists, shows up again or in case of doubt, contact the
TAC.
646
High hot water inlet temperature
Check configuration of other heat generators
on the system.
Reset is automatic and occurs if the generating
condition ceases with circulating pump on or
20 minutes after the code is generated with
circulating pump off.
NA
647
Hot water inlet temperature below
operational limits
Reset occurs automatically when the gener-
ating cause resolves or 430 seconds after the
code is generated.
Reset is automatic in case of switching from “hot” to “cold” mode.
Reset may be performed from the DDC or from the S61 board (menu
2, parameter 1).
If the code shows up again or in case of doubt contact the TAC.
648
High hot water differential tem-
perature
Check water flow.
Reset occurs automatically 20 minutes after the
code is generated.
Reset is automatic in case of switching from “hot” to “cold” mode.
Reset may be performed from the DDC or from the S61 board (menu
2, parameter 1).
If the code shows up again or in case of doubt contact the TAC.
649
Missing auxiliary board
NA
Contact the TAC.
651
Cooling antifreeze function
activated
Non-blocking Warning (informative code).
The code clears automatically when antifreeze
function execution ends.
NA
652
Defrosting cycle activated
Non-blocking Warning (informative code).
The code clears automatically when execution
of defrosting ends.
NA
654
Inversion valve in opposite
position
NA
Reset is automatic in case of new switching and discontinuation of
the generating cause.
If the code shows up again or in case of doubt contact the TAC.
655
Inversion valve in unknown
position
NA
Reset is automatic in case of new switching and discontinuation of
the generating cause.
If the code shows up again or in case of doubt contact the TAC.
656
Inversion valve in uncertain
position
NA
Reset is automatic in case of new switching and discontinuation of
the generating cause.
If the code shows up again or in case of doubt contact the TAC.
660
Defrosting valve has failed to open
Non-blocking Warning (informative code).
Reset is automatic, however, it is advisable to
contact the TAC.
Reset may be performed from the DDC or from the S61 board (menu
2, parameter 1).
If the code shows up again or in case of doubt contact the TAC.
661
Oil pump priming cycle activated
The priming cycle lasts 30’ if activated manual-
ly or 10 minutes if activated automatically.
Reset is automatic when the triggering
condition ceases.
NA
678
High hot water delivery temper-
ature
Reset is automatic in case of switching from
“hot” to “cold” mode.
Reset is automatic when the triggering condi-
tion ceases.
NA
679
Heating antifreeze function
activated
Non-blocking Warning (informative code).
The code clears automatically when antifreeze
function execution ends.
NA
80/680
Incomplete functional parameters Contact the TAC.
681
Invalid bank 1 parameters
Reset is automatic when the triggering condi-
tion ceases.
Contact the TAC.
682
Invalid bank 2 parameters
Reset is automatic when the triggering condi-
tion ceases.
Contact the TAC.
683
RY and RW contacts simultaneous-
ly activated
Reset is automatic when the triggering condi-
tion ceases.
NA
