ECKELMANN VS 3010 BS, Руководство по эксплуатации

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KGL Operating Manual – VS 3010 BS 2018-07-02 / 82 178
4.15.8 Course of the Z2 discharge gas defrost when the type of defrosting is set to "Cold rooms - El.
UA"
Signal Lead
time
Drain
heater
5..30
min. Unload
to one
stage Pump
down
until
suction
gas
pressure
at
Low LP
Z2 Defrost
10..30 min.
1 Drain heater Z2 cold rooms No lead time in the event of power failure
during defrost and separate defrosting
2 SV 2.2/1 and SV 2.2/2 Close suction line 4 minutes monitoring time for the pump down
3 SV3.2/1, SV3.2/2 discharge gas feed and
SV1 common discharge line Disable of the Z2 cold rooms for electrical
defrost. For Z1 cases, defrost termination via
temperature or defrost duration.
4 Defrost command only to Z2 cases (not to
Z2 cold rooms) via CAN bus
5 Disable Z2 cold rooms cooling via disabling
of refrigeration points
6 Toggle setpoint Z1 circuit (no shift) AL 300/CI 3000 show an before the t0-Z2 A
setpoint in the overview
7 Forced cooling of all Z1 cases via CAN bus
8 Disable of the message
LP-Z2 measuring
loop error
5 minutes after opening the suction line
9 Z2 compressor disable 1.5 minutes before
defrost duration if defrost duration equals
max. defrost time Pump down
or
compressor
disable Without oil equalisation line:
compressor enable if t0-Z2 < t0-enable
With oil equalisation line:
compressor enable if t0-Z2 < t0-Z1
Max. disable after defrost = 5 minutes
4.15.9 Error during discharge gas defrosting
In the event of power failure within the first 10 minutes of defrosting, the defrosting will be repeated.
However, the lead time for the defrost heater will not be started.
In the event of power failure after a defrost duration of at least 10 minutes, the defrost will be aborted.
If the suction gas pressure during a Z2 defrost does not reach the t0 threshold t0 Comp. OFF (menu 3-
4) within 4 minutes after closing the suction line, the defrost will be aborted. The message Fault D2D Z2
will be registered in the fault memory.
If a defrost is initiated via the internal clock and if the defrost is disabled via the digital input disable
defrost Z2 or disable defrost Z2 cold rooms, the message Disable D2D Z2 or Disable D2D Z2R is
registered in the log memory.
If there is a serious fault (safety loop), no defrost is initiated. As well as the system fault, the message