Daikin HCU2040PXB1 [118/169] Copyright hpl march 2021 p4367 rev 01

Daikin HCU4070PXB1 [118/169] Copyright hpl march 2021 p4367 rev 01
69
ENG
pRack PR300T +0300018EN rel. 1.5 - 02.05.2017
Mask index Display description Description Def. U. of M.Values
Ehb06 Enable pump down Enable pump down with at least one LT compressor active NO --- NO | YES
Threshold Pump down threshold 1.5 barg … (**)
Eia01 --- RPRV tank pressure probe position --- --- ---, U1…U10 (****)
--- RPRV tank pressure probe type 4...20 mA --- … (**)
--- (display only) RPRV tank pressure probe value --- … (**)
Max limit RPRV tank pressure probe maximum value 60.0 barg … (**)
Min limit RPRV tank pressure minimum value 0.0 barg … (**)
Calibration RPRV tank pressure probe calibration 0.0 barg … (**)
…… ……
Eia04 DI HPV alarm digital input position --- --- ---, 01…18, U1…
U10 (****)
Status HPV alarm digital input status --- --- closed | open
Logic HPV alarm digital input logic NC --- NC | NO
Function HPV alarm digital input status --- --- not active | active
…… ……
Eia06 --- HPV valve analog output position 0 --- ---, 01…06 (****)
Status (display only) HPV valve analog output value 0 % 0.0…100.0
…… ……
Eia08 DO Line relay DO position and On/O Status Parallel compressor ---, 01…18 (****)
Logic: Logic Parallel Compressor DO: NA NC | NA
…… ……
Eia15 DI On/O parall.compr. Digital input on/o parallel compressor ---, 01…18, U1…
U10 (****)
Status Status parallel compressor DI (display only) Open | Closed
Logic Logic parallel compressor DI NA NC | NA
Function (display only) Function Status parallel compressor DI Not active | Active
…… ……
Eib01 Enable HPV valve
management
HPV valve management enabled, or transcritical operation mode enabled NO --- NO | YES
Algorithm selection Selection of the algorithm-tyep to apply to the calculation of the pressure setpoint optimiz. --- optimiz. | custom
Eib02 Min HPV vale opening when
OFF
Minimum opening of the HPV valve with the unit OFF 0 % 0.0…100.0
During ON Minimum opening of the HPV valve with the unit ON 0 % 0.0…100.0
Max HPV valve opening Maximum opening of the HPV valve 0 % 0.0…100.0
Max delta Maximum variation per second allowed for the HPV valve output 0 % 0.0…100.0
Eib03 Pre-positioning Opening of the HPV valve at start-up during pre-positioning 0 % 0.0…100.0
Prepos. time Pre-positioning duration 0 s 0…9999
Eib04 --- Calculation algorithm graph --- --- ---
Eib05 (De nition
of the points on
the graph, see
mask Eib04)
P100% P
100%
upper pressure limit
109.0 barg … (**)
Pmax P
max
pressure for de ning the upper proportional zone
104.0 barg … (**)
Pcritic P
critic
optimal pressure calculated at the passage temperature between the intermediate zone
and transcritical zone
76.8 barg … (**)
T12 T
12
limit temperature between the transcritical zone and intermediate zone
31.0 °C … (**)
T23 T
23
temperature limit between the intermediate zone and subcritical zone
20.0 °C … (**)
Tmin T
min
temperature for de ning the lower proportional zone
6.0 °C … (**)
Eib06 (De nition
of the points on
the graph, see
mask Eib04)
T100% T
100%
temperature for de ning the complete opening zone of the valve
-10.0 °C … (**)
Delta Subcooling for optimized regulation
3.0 °C … (**)
Coe .1 Coe cient for determining the customized line
2.5 -999.9…999.9
Eib07 P1 Proportional gain for the proportional + integral regulation of the HPV valve
5 %/ barg %/barg 0…100
I1 Integral time for the proportional + integral regulation of the HPV valve
60 s 0…9999
PHR Proportional gain for the proportional + integral regulation of the HPV valve with heat
recovery
5 %/ barg %/barg 0…100
IHR Integral time for the proportional + integral regulation of the HPV valve with heat recovery
60 s 0…9999
Eib08 Enable HPV setpoint  lter Enabling of the  lter action on the HPV valve setpoint
NO --- NO | YES
Number of samples Number of samples
5 --- 0…99
Eib09 Enable mgmt of HPV with HR Enabling of the various management of the HPV valve during heat recovery activation NO --- NO | YES
HR setp. Setpoint regulation of the HPV valve during heat recovery 90.0 barg … (**)
Post HR Dt Time scale for the setpoint reset procedure after heat recovery 0.1 s 0…999
Post HR DP Pressure scale for the setpoint reset procedure after heat recovery 1.0 barg … (**)
Eib10 HPV valve safety position HPV valve safety position 50.0 % 0.0…100.0
Eib11 Gas cooler temp delta with
probe error
O set to be applied to the external temperature in the event of gas cooler pressure probe
error
0.0 °C … (**)
Eib12 Enable HPV safeties from tank
pressure
HPV valve safety procedure enabling NO --- NO | YES
Eib13 High tank pressure threshold High tank pressure threshold 40.0 barg … (**)
Max tank pressure Maximum tank pressure allowed 45.0 barg … (**)
HPV set.incr. Maximum o set to add to the HPV setpoint when the tank pressure exceeds the high
pressure threshold
10.0 barg … (**)
Eib14 Low tank pressure threshold Low tank pressure threshold 32.0 barg … (**)
Min tank pressure Minimum tank pressure allowed 27.0 barg … (**)
HPV set.decr. Maximum o set to subtract from the HPV setpoint when the tank pressure goes below the
low pressure threshold
10.0 barg … (**)
Eib15 Force close with comp OFF Enable HPV valve closure when all compressors on line 1 are o NO --- NO | YES
Delay clos. with comp. OFF HPV valve closure delay when all compressors on line 1 are o 10 s 0…999
Eib16 Regul. in subcritical zone Enabling the regulation of the gas cooler in the subcritical zone NO --- NO | YES
Eib17 Enable Enable warning function when the gas cooler pressure is too far from the setpoint for the
set time
NO --- NO | YES
Delta Di erence between the gas cooler pressure and the setpoint which generates the warning 30.0 barg … (**)
Delay Delay time before generating the warning 30 s 0…999
Eib18 Enable RPRV valve mgmt Enable RPRV valve mgmt NO --- NO | YES
Eib19 Min RPRV vale opening
when ON
Minimum opening of the RPRV valve with the unit ON 10.0 % 0.0…100.0
During OFF Minimum opening of the RPRV valve with the unit OFF 10.0 % 0.0…100.0
Eib20 Pre-positioning Opening of the RPRV valve at start-up during pre-positioning 50.0 % 0.0…100.0
Prepos. time Pre-positioning duration 5 s 0…9999
Eib21 Max RPRV valve opening Maximum opening of the RPRV valve 100.0 % 0.0…100.0
Max delta Maximum variation allowed for the HPV valve output 10.0 % 0.0…100.0
Eib22 CO2 rec. pressure setpoint Regulation setpoint for the pressure for the CO2 receiver 35.0 barg … (**)
Gain Proportional gain for the proportional + integral regulation of the RPRV valve 20 %/barg %/barg 0…100
Int time Integral time for the proportional + integral regulation of the RPRV valve 60 s 0…9999
Eib23 RPRV valve safety position RPRV valve safety position 50.0 % 0.0…100.0
Eib24 Force close with comp OFF Enable RPRV valve closure when all compressors on line 1 are o NO --- NO | YES
Delay clos. with comp. OFF RPRV valve closure delay when all compressors on line 1 are o 10 s 0…999
Page 118 of 169
Copyright HPL March 2021
P4367 Rev 01

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