Parker Hyperchill PCW420 - Service Parameters (USER)

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PCW420-650
4.7 Service parameters (USER)
4.7.1 Machine parameters
PARAMETER CODE TYPE DEFAULT
Unit of measurement
C-F
U
0
Unit address
Adr
U
1
On/off enabling by supervisor
SUP
U
0
Remote on / off enabling
(see para. 4.7.1.1).
rE
U
0
Alarm relay management (see
para. 4.7.1.2)
rAL
U
0
Digital output 3 con guration
Ud3
U
1
Compressor 1 enabling
Abc1
U
1
Compressor 2 enabling
Abc2
U
1
Compressor 3 enabling
Abc3
U
1
Compressor 4 enabling
Abc4
U
1
Chiller hour counter alarm
threshold
tHU
U
0
Compressor 1 hour counter
threshold
tH1
U
0
Compressor 2 hour counter
threshold
tH2
U
0
Compressor 3 hour counter
threshold
tH3
U
0
Compressor 4 hour counter
threshold
tH4
U
0
Set point lower limit
LIS
U
5.0
41.0
4.7.1.1. Remote On / Off mode
0
Remote On/Off disabled
1
Remote On/Off enabled together with local On/Off
2
Remote On/Off only, local On/Off disabled
4.7.1.2. Alarm relay management
0
Relay normally deactivated, excited by an alarm.
1
Relay normally excited (also with control OFF), deacti-
vated by an alarm.
2
Relay normally excited (only with control ON), deacti-
vated by an alarm or with control OFF.
4.7.2 b1 probe parameters
Tank water outlet temperature
PARAMETER CODE TYPE DEFAULT
High temperature con guration
cHAI
U
0
Low temperature con guration
cLAI
U
0
Low temperature alarm reset
differential
dbI
U
1.0
1.8
Sensor calibration
CAI
U
0.0
4.7.3 b2 probe parameters
Evaporator temperature 1
PARAMETER CODE TYPE DEFAULT
High temperature con guration 1
cHA2
U
0
High temperature alarm 1
HA2
U
60.0
140.0
Low temperature alarm 1
LA2
U
3.0
37.4
Sensor calibration
CA2
U
0.0
4.7.4 b5 probe parameters
Ambient temperature
PARAMETER CODE TYPE DEFAULT
High temperature alarm
HA5
U
60.0
140.0
Low temperature alarm
LA5
U
-20.0
-4.0
Sensor calibration
CA5
U
0.0
4.7.5 b7 probe parameters
Evaporator temperature 2
PARAMETER CODE TYPE DEFAULT
High temperature con guration 2
cHA7
U
0
High temperature alarm 2
HA7
U
60.0
140.0
Low temperature alarm 2
LA7
U
3.0
37.4
Sensor calibration
CA7
U
0.0
4.7.6 Compressor parameters
PARAMETER CODE TYPE DEFAULT
Compressor rotation
rot
U
1
4.7.7 Pump parameters
PARAMETER CODE TYPE DEFAULT
Pump stop delay
dPS
U
5
Pump start delay
dPA
U
5
Pump enabling
AbPu U 1
Pump thermal alarm management
AtP U 1
4.7.8 Antifreeze heater parameters
PARAMETER CODE TYPE DEFAULT
Antifreeze heater operating mode
(see para. 4.7.8.1)
FUA
U
0
Antifreeze heater activation mode
(see para. 4.7.8.2)
AbrA
U
2
Activation set point (b3)
ArA
U
5.0
41.0
Set point adjustment (b1)
SEA
U
7.0
45.0
Temperature control differential (b1)
dIA
U
1.0
1.8
4.7.8.1. FUA antifreeze heater operating mode
0
Temperature control by b1, activation by b5 (ambient
temperature sensor)
1
Temperature control by b5 (ambient temp. sensor) with
ARA set point.
4.7.8.2. AbrA antifreeze heater activation mode
0
Activation only when controller is ‘On’
1
Activation also when controller is ‘Off’
2
Activation also when controller is ‘Off’. During heater
operation the pump is activated.
Notes: this function allows antifreeze protection with low
ambient temperature conditions and the chiller in OFF.
Operation:
1) when probe b5 detects temperatures below 41 °C, the
antifreeze function is activated and the pump turns ON;
2) probe b1 has the task of activating the resistance when
the water inlet temperatures drop below 41 °C.