ahlsell ENERGY FLEX SKP 20, User Manual

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13 SKP 20
(NOTE 1) The bypass is activated by the reversal of the 4-way valve only if at least one compressor
is on
(NOTE 2) The alarm is enabled only if the associated resource (e.g. a given compressor or pump)
is active
(NOTE 3) The alarm is enabled only if the associated resource (e.g. specific compressor or specific
pump) is active only in heating mode.
(NOTE 4) The alarm is enabled only if the associated resource (e.g. specific compressor or specific
pump) is active only in heating mode. Low pressure digital alarm related to dedicated
circuit is not active if Pump-down valve of the relavant circuit is active (valve closed,
Pump-down ongoing, and after CP33 time after desactivation)
(NOTE 1) If No. trips = 1, the alarm is always manual reset type.
(NOTE 2) Alarm bypass is active in heating mode only.
(NOTE 3) An offset of 6°C (value cannot be changed) is added to the activation setpoint AL51
during the defrost stage.
Alar
m c
ode
Name of alar
m
Bypass ac
tiv
ation
ev
en
t
Bypass time
Aut
oma
tic alar
m
ac
tiv
ation time
Manual alar
m
ac
tiv
ation time
Exit alar
m
deac
tiv
ation time
Number of in
ter
ven
tions
per sample time
E022
Primary circuit
pump 2 thermal
switch
None
Not
present
Not
present
Not
present
Not
present
AL26
E026
Disposable circuit
pump thermal
switch
None
Not
present
Not
present
Not
present
Not
present
AL27
E050
Primary exchanger
electric heater 1
thermal switch
None
Not
present
Not
present
Not
present
Not
present
Not
present
E051
Primary exchanger
electric heater 2
None
Not
present
Not
present
Not
present
Not
present
Not
present
E056
Auxiliary output
alarm
None
Not
present
Not
present
Not
present
Not
present
Not
present
2.4 Alarms Table
Alar
m c
ode
Name of alar
m
Bypass ac
tiv
ation ev
en
t
Bypass time
SET
ac
tiv
ation
Hyst
eresis
Aut
oma
tic alar
m time
(NO
TE
1)
No
. of tr
ips
Con
trol P
robe
E003
Circuit 1
analogue
high pressure
alarm
None None AL40 AL41 Not present AL42
Circuit 1
high pressure
probe
E004
Circuit 1
analogue
high pressure
alarm
None None AL40 AL41 Not present AL42
Circuit 1
high pressure
probe
E007
Circuit 1
analogue
low pressure
alarm
A circuit 1
compressor
is switched on
or reversal of
the 4-way
valve
AL43 AL44 AL45 Not present A46
Circuit 1
low pressure
probe
E008
Circuit 2
analogue
low pressure
alarm
A circuit 2
compressor
is switched on
or reversal of
the 4-way
valve
AL43 AL44 AL45 Not present A46
Circuit 2
low pressure
probe
E030
Primary circuit
antifreeze
On/Off (local or
remote), input
in heat mode
(NOTE 2)
AL50
AL51
(NOTA 3) AL52 Not present
A53
Internal
exchanger
water/air outlet
temperature
E031
External circuit
antifreeze
On/Off (local or
remote), input
in heat mode
(NOTE 2)
AL54 AL55 AL56 Not present A57
External
exchanger
outlet water
temperature
E032
“Vacuum”
circuit 1
None None AL59 AL60 AL58 manual reset Low pressure
input circuit 1
Alar
m c
ode
Name of alar
m
Bypass ac
tiv
ation ev
en
t
Bypass time
SET
ac
tiv
ation
Hyst
eresis
Aut
oma
tic alar
m time
(NO
TE
1)
No
. of tr
ips
Con
trol P
robe
E033
“Vacuum”
circuit 2
None None AL59 AL60 AL58 manual reset Low pressure
input circuit 2
E035
High
temperature
None None AL47 AL48 AL49
Automatic
reset
Internal
exchanger
water/air outlet
temperature
• The alarm signal consists of a code, the format being “E0nn” (nn is a 2-figure number iden-
tifying the type of alarm, e.g. E000, E025, E039...).
• In the case of multiple simultaneous alarms only the one with the lowest code will be displa-
yed (e.g. simultaneous alarms E000 and E001). The display will show only E000 alternated
with the main display page
• If the measurement on the main display is incorrect, in the event of an alarm, the alternate
alarm code will alternate with “----”.
All possible alarms are listed in the table below with their respective codes and the relative utilities
blocked:
2.4.1 Alarms table key
column
Alarm code
NOTA:
the codes are shown in ascending order (E000, E001) but there may be
some gaps (there is no E006)
Name of alarm
Notes
CMP 1/2
Compressor 1/power step 2
PUMP 1/2 Pump1/2
Alarm D Digital
A
Input
Reset AUTO Automatic
UTILITY
OFF COMP1 OFF compressor 1
OFF COMP2
OFF compressor 2
OFF COMP3
OFF compressor 3
OFF COMP4 OFF compressor 4
OFF (1) When used for temperature control
OFF (2)
When used for temperature control and/or antifreeze
OFF RES1
OFF heater 1
OFF RES2 OFF heater 2
2.3 Analogue alarms