EVCO c-pro nano CHIL User Manual

Page 74

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C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL

Pag. 74

PP07

Shutdown of pump / recirculating fan during
defrosting

No (1)

No (0)

Yes (1)

IS-P

PP08

Difference in operating hours between the two
pumps, requiring their being swapped.

4

1

240

Hours

IS-P

PP09

Pump operating time at low water flow (flow
alarm)

15

0

999

Sec.

IS-P

PP10

Pump operating time at low temperature of
outflow water (anti-frost alarm)

15

0

999

Sec.

IS-P

PP11

Hot start enabling of recirculating fan

Yes (1)

No (0)

Yes (1)

-

IS-P

PP12

Hot start set point of recirculating fan

36.0

0.0

70.0

°C

IS-P

PP13

Hot start differential of recirculating fan

4.0

0.1

10.0

°C

IS-P

ANTI-FROST PARAMETERS

Pr01

Enabling of anti-frost heating elements

Yes (1)

No (0)

Yes (1)

IS-AF

Pr02

Anti-frost heating element set point

5.0

Pr11

10.0

°C

IS-AF

Pr03

Anti-frost heating element differential

2.0

0.1

10.0

°C

IS-AF

Pr04

Forcing of anti-frost heating elements with
probe error

No (0)

No (0)

Yes (1)

IS-AF

Pr11

Anti-frost alarm threshold

3.0

-30.0

Pr01

°C

IS-AF

Pr12

Anti-frost alarm differential

2.0

0.1

10.0

°C

IS-AF

FREE-COOLING PARAMETERS

PS01

Enabling of free-cooling

No (0)

No (0)

Yes (1)

IS-FC

PS02

Shutter modulation band

3.0

0.1

20.0

°C

IS-FC

PS03

Fan minimum speed

0.0

0.0

PS04

%

IS-FC

PS04

Fan maximum speed

100.0

PS03

100.0

%

IS-FC

PS11

W/Temp-A/Temp differential for free-cooling
activation

3.0

2.0

9.9

°C

IS-FC

PS13

W/Temp-A/Temp hysteresis for free-cooling
activation

2.0

0.5

5.0

°C

IS-FC

PS14

Free-cooling activation min. time

30

0

240

Sec.

IS-FC

PS15

ON/OFF valve hysteresis

0.5

0.1

5.0

°C

IS-FC

PS16

Max. threshold for motor-operated valve
opening

2.0

0.1

PS02

°C

IS-FC

PS21

Enabling of free-cooling when compressors
are ON

Yes (1)

No (0)

Yes (1)

IS-FC

ALARM PARAMETERS

PA01

Flow alarm delay from machine start-up

10

1

999

Sec.

IS-S

PA02

Flow alarm by-pass time during normal
operation

1

1

999

Sec.

IS-S

PA03

Number of triggered flow alarms with auto-
reset before the alarm becomes manual

3

0

9

IS-S

PA04

Delay interval for notification of probe error

10

0

240

Sec.

IS-S

PA05

High-temperature alarm threshold during
summer operation (chiller)

30.0

10.0

40.0

°C

IS-S

PA06

Low-temperature alarm threshold during
winter operation (heat pump)

15.0

10.0

40.0

°C

IS-S

PA07

Triggering delay for temperature alarm

30

1

999

Sec.

IS-S

PA08

Consequent time for a temperature alarm:
0 = Notification only
1 = Machine stop

0

0

1

Sec.

IS-S

PA09

Reset differential for temperature alarm

0.5

0.1

10.0

°C

IS-S

PA10

Temperature alarm inhibition interval from
system start-up

15

0

999

Sec.

IS-S

PA11

Low-pressure alarm threshold during winter
operation (heat pump)

3.0

0.1

9.9

Bar

IS-S

PA12

Low-pressure alarm reset differential during
winter operation (heat pump)

1.0

0.1

4.0

Bar

IS-S

PA13

Low-pressure alarm by-pass interval from
start-up of first compressor

120

0

999

Sec.

IS-S

PA14

Number of triggered low-pressure alarms with
auto-reset before the alarm becomes manual

3

0

5

IS-S

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