Electronic GR3 controller NRA_NRC_NBW_NLW_NRL After Sales Service Manual Edition December 2012

120

ELECTRONIC SYSTEM FUNCTIONS, NRL UNITS CONFIGURATIONS Configuration of the command card on the basis the of machine model The system has been developed to be able to manage the NRL-H models, it is therefore necessary to configure the card on the basis of the machine model it is to be installed on. The microprocessor then will be able to find the right software to run, according to the card DIP switch settings, and to the accessories that might have been installed. The meanings of the three dip switches are given in the following figures. Through these it is possible to select the machine model and the type of functioning. The control card gets the DIP switch configuration at power-on time, therefore the DIP switches have to be configured with the Card powered off.

ON

OFF 1 2 3 4 5 6 7 8

Centrifugal

Only cooling

Heat pump

Freecooling

Normal

Bicondenser

Monocondenser

Normal

2 Fan group Normal

Normal

Total recovery Pumpdown

1 Fan group

Condensing unit

Axial

Dip-switch SW1.

121

ON

OFF 1 2 3 4

Autotest

6 CompressorsAir to Water (NRL)

Normal times

Small times 1/10

Water/Water

2-3-4 Compressors

Normal

Dip-switch SW2.

ON

OFF 1 2 3 4

AP2 NOT Primary

TV1 Primary

AP1 Primary

FL Primary

FL NOT Primary

AP1 NOT Primary TV1 NOT Primary

AP2 Primary

5

TV2 NOT Primary

TV2 Primary (always ON at NR2001)

Dip-switch SW3.

122

Setting of power compressors values refers to the NRL units

Modello macchina Power CP1

Power CP1A

Power CP1B

Power CP2

Power CP2A

Power CP2B

NRL 280 50% SH120

0% 0% 50% SH120

0% 0%

NRL 300 58% SH161

0% 0% 42% SH120

0% 0%

NRL 330 50% SH161

0% 0% 50% SH 161

0% 0%

NRL 350 50% SH 184

0% 0% 50% SH 184

0% 0%

NRL 500 28% SH 120

28% SH 120

0% 44% SH 184

0% 0%

NRL 550 34% SH 161

26% SH 120

0% 40% SH 184

0% 0%

NRL 600 29% SH 161

21% SH 120

0% 29% SH 161

21% SH 120

0%

NRL 650 25% SH 161

25% SH 161

0% 25% SH 161

25% SH 161

0%

NRL 700 25% SH 184

25% SH 184

0% 25% SH 184

25% SH 184

0%

NRL 750 21% SH 184

21% SH 184

0% 29% SH 240

29% SH 240

0%

NRL 800 25% SH 240

25% SH 240

0% 25% SH 240

25% SH 240

0%

NRL 900 22% SH 240

22% SH 240

0% 28% SH 300

28% SH 300

0%

NRL 1000 25% SH 300

25% SH 300

0% 25% SH 300

25% SH 300

0%

NRL 1250 25% SH 380

25% SH 380

0% 25% SH 380

25% SH 380

0%

NRL 1400 23% SH 380

23% SH 380

0% 18% SH 300

18% SH 300

18% SH 300

NRL 1500 17% SH 300

17% SH 300

16% SH 300

17% SH 300

17% SH 300

16% SH 300

NRL 1650 15% SH 300

15% SH 300

15% SH 300

19% SH 380

18% SH 380

18% SH 380

NRL 1800 17% SH 380

17% SH 380

16% SH 380

17% SH 380

17% SH 380

16% SH 380

(*)Please refer to paragraph PARAMETER ESTABLISHMENT of units Compressors spare part code utilize on NRL units Important: Please refer to sure to the version or comm. number of unit Model SH 120 code 9115013 Model SH 161 code 9115087 Model SH 184 code 9115111 Model SH 240 code 9115265 Model SH 300 code 9115468 Model SH 380 code 9115681

139

Software Configuration Parameters The software that is programmed on the card GR3 includes its configuration parameters, which correspond to a standard version of the car. In relation to the different versions and accessories available for the correct behavior of the software should verify that all configuration parameters of the software are correct. This procedure still has to be testing the car at the end of the line and in the case of cards replaced in parts. In order to expedite this operation, the process involves going to check and change only those parameters that are different than the standard version precharged. To perform this configuration you must: 1) Consider each group of modified Group Models of machine or

equipment for which adjustment is required

Mode for choosing the new value to set

Parameters to modify

2) Check if the unit is into the description 3) Change the parameters describe into this column Configuration rules Field 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Code NRL Size Comp. Exp.

valve Model Heat

RecoveryVersion Coils Fans Power

supply Accumulation

Dip switches settings on the GR board SW1 default all OFF DIP

UNIT TYPE ON

1 Total recovery All units NRL with total recovery T

X

2 Always OFF 3 1 fan group

All models from 275 to 700 All models from 750 to 1250 high efficiency (no version A

and E)

X

4 Always OFF 5 Heat pumps NRL H X 6 Freecooling NRL F and B X 7 Always OFF 8 Motocondensing NRL-C X

140

SW2 default all OFF DIP UNIT TYPE ON 1 Fast time always OFF 2 Always OFF 3 All models with 4 compressors ( until size 1250 ) X 4 Autotest Always OFF

SW3 default all OFF DIP UNIT TYPE ON 1 FL not primary always OFF 2 All models X 3 All models X 4 All models X 5 All models X

141

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

NRL 275 NRL 320 NRL 350

PowerCP1 50 PowerCP1A 0 PowerCP1B 0 PowerCP2 50 PowerCP2A 0 PowerCP2B 0

NRL 300

PowerCP1 58 PowerCP1A 0 PowerCP1B 0 PowerCP2 42 PowerCP2A 0 PowerCP2B 0

NRL 500 PowerCP1 28 PowerCP1A 28 PowerCP1B 0 PowerCP2 44 PowerCP2A 0 PowerCP2B 0

NRL 550 PowerCP1 34 PowerCP1A 26 PowerCP1B 0 PowerCP2 40 PowerCP2A 0 PowerCP2B 0

A

All models with the exception of condensing models (G group) (Power compressors parameters to change)

NRL 600 PowerCP1 29 PowerCP1A 21 PowerCP1B 0 PowerCP2 29 PowerCP2A 21 PowerCP2B 0

142

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

NRL750 PowerCP1 21 PowerCP1A 21 PowerCP1B 0 PowerCP2 29 PowerCP2A 29 PowerCP2B 0

NRL 650 NRL 700 NRL 800 NRL 1000 NRL 1250

PowerCP1 25 PowerCP1A 25 PowerCP1B 0 PowerCP2 25 PowerCP2A 25 PowerCP2B 0

NRL 900

PowerCP1 22 PowerCP1A 22 PowerCP1B 0 PowerCP2 28 PowerCP2A 28 PowerCP2B 0

NRL 1500 NRL 1800

PowerCP1 17 PowerCP1A 17 PowerCP1B 16 PowerCP2 17 PowerCP2A 17 PowerCP2B 16

NRL 1400

PowerCP1 23 PowerCP1A 23 PowerCP1B 0 PowerCP2 18 PowerCP2A 18 PowerCP2B 18

A All models with the exception of condensing models (G group) (Power compressors parameters to change)

NRL 1650

PowerCP1 15 PowerCP1A 15 PowerCP1B 15 PowerCP2 19 PowerCP2A 18 PowerCP2B 18

143

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

Versions 01,03,05,07,P1,P3

N° Pumps 1 N° Pumps ON 1 Pump AG ON

B

NRL to 1250 size (included) with buffer tank (14 and 16 fields of commercial configuration rules)

Versions 02,04,06,08,P2,P4

N° Pumps 2 N° Pumps ON 1 Pumps AG ON

C NRL low temperatureY versions

All AG Evap. OFF Set AGC1 -10.0 SetFreddo -6.0

D NRL silence L versions From NRL500 to NRL 1800

Cond. hig 28 bar Diff. hig 8 bar DcpR On 38 bar

E NRL freecooling F versions

All In / Usc H2O OUT

F NRL heat pump H versions with only one mono compressor circuit (menù factory psw 150930)

NRL Coeff PD 0 t.1 cp PD 0

Coeff PD 0 t.1 cp PD 0 (set factory menù)

144

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

With compressors rotation Chillers with 2 compressors NRL 275 300 320 350

PowerCP1 50 PowerCP1A 0 PowerCP1B 0 PowerCP2 50 PowerCP2A 0 PowerCP2B 0

G NRL C versions condensing units without evaporator plate exchanger

With compressors rotation Chillers with 3 compressors NRL 500 550

PowerCP1 33 PowerCP1A 33 PowerCP1B 0 PowerCP2 33 PowerCP2A 0 PowerCP2B 0

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

With compressors rotation Chillers with 4 compressors NRL 600 650 700 750 800 900 1000 1250

PowerCP1 25 PowerCP1A 25 PowerCP1B 0 PowerCP2 25 PowerCP2A 25 PowerCP2B 0

With compressors rotation Chillers with 4 compressors NRL 1400

PowerCP1 20 PowerCP1A 20 PowerCP1B 0 PowerCP2 20 PowerCP2A 20 PowerCP2B 20

With compressors rotation Chillers with 6 compressors NRL 1500 NRL 1650 NRL 1800

PowerCP1 15 PowerCP1A 15 PowerCP1B 15 PowerCP2 15 PowerCP2A 15 PowerCP2B 15

G NRA and NRC C versions condensing units without evaporator plate exchanger

Without compressors rotation Chillers with 2 compressors NRL 275 300 320 350

PowerCP1 100 PowerCP1A 0 PowerCP1B 0 PowerCP2 100 PowerCP2A 0 PowerCP2B 0

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

Without compressors rotation Chillers with 3 compressors NRL 500 550

PowerCP1 100 PowerCP1A 100 PowerCP1B 0 PowerCP2 100 PowerCP2A 0 PowerCP2B 0

Without compressors rotation Chillers with 4 compressors NRL 600 650 700 750 800 900 1000 1250

PowerCP1 100 PowerCP1A 100 PowerCP1B 0 PowerCP2 100 PowerCP2A 100 PowerCP2B 0

Without compressors rotation Chillers with 4 compressors NRL 1400

PowerCP1 100 PowerCP1A 100 PowerCP1B 0 PowerCP2 100 PowerCP2A 100 PowerCP2B 100

G NRA and NRC C versions condensing units without evaporator plate exchanger

Without compressors rotation Chillers with 6 compressors NRA 1500 NRL 1650 NRL 1800

PowerCP1 100 PowerCP1A 100 PowerCP1B 100 PowerCP2 100 PowerCP2A 100 PowerCP2B 100

H NRL All B.AG Evap 120 s.

147

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

M NRL F freecooling versions

NRL 800 NRL 900 NRL 1000 NRL 1250 NRL 1400 NRL 1500 NRL 1650 NRL 1800

Step Free 3 (set factory menù)

N NRL HP pressostat 42 bar

from size 280 to 350 with All. AP 40.5 bar (set factory menù)

O NRL only cooling except version Y and X

All All. BP 04.0 bar (set factory menù)

P.In S. 2.8 bar (set factory menù)

P NRL H heat pump versions

All

t.t.sbr. 0900 s (set factory menù)

29

CONFIGURATIONS Configuration of the command card on the basis the of machine model The system has been developed to be able to manage the NRA-H, NRC-H, NLW-H models, it is therefore necessary to configure the card on the basis of the machine model it is to be installed on. The microprocessor then will be able to find the right software to run, according to the card DIP switch settings, and to the accessories that might have been installed. The meanings of the three dip switches are given in the following figures. Through these it is possible to select the machine model and the type of functioning. The control card gets the DIP switch configuration at power-on time, therefore the DIP switches have to be configured with the Card powered off.

30

31

Dip switches setting SW1 DIP UNIT TYPE ON 1 Total recovery

All units with total recovery T X

2 Always OFF 3 1 fan group

All NRA models from 275 to 750 All NRC models

X

4 All NRC X 5 Heat pumps NRA NRC NBW

All NLW X

6 Freecooling NRA-F X 7 NBW X 8 Motocondensing NRA/NRC-C X

SW2 DIP UNIT TYPE ON 1 Fast time always OFF 2 Water/Water version

All NLW ( except E version ) All NBW ( except E version )

X

3 All models with 4 compressors NRC until size 1000 NRA until size 1250

NRA2000/2250/2500 master and slave boards All NLW E and NBW-E

X

4 Autotest Always OFF SW3 DIP UNIT TYPE ON 1 All models 2 All models 3 All models 4 All models 5 All models X

32

Setting of power compressors values refers to the units

Units Power CP1

Power CP1A

Power CP1B

Power CP2

Power CP2A

Power CP2B

NBW 147 50% ZR81 0% 0% 50%

ZR81 0% 0%

NRA 275 NRC 275

NBW 207

50% SZ120V 0% 0% 50%

SZ120V 0% 0%

NRA 300 NRC 300

58% SZ120V 0% 0% 42%

SZ161V 0% 0%

NRA 325 NRC 325

NBW 307

50% SZ161V 0% 0% 50%

SZ161V 0% 0%

NRA 350 NRC 350

NBW 407

50% SZ185C 0% 0% 50%

SZ185C 0% 0%

NRA 500 NRC 500

NLW 500

28% SZ120V

28% SZ120V 0% 44%

SZ185C 0% 0%

NRA 550 NRC 550 NLW 550

34% SZ161V

26% SZ120V

26% SZ120V

34% SZ161V

0%

40% SZ185C

40% SZ185C

0% 0%

NRA 600 NRC 600

NLW 600

29% SZ161V

21% SZ120V 0% 29%

SZ161V 21%

SZ120V 0%

NRA 650 NRC 650

NLW 650

25% SZ161V

25% SZ161V 0% 25%

SZ161V 25%

SZ161V 0%

NRA 700 NRC 700

NLW 700

25% SZ185C

25% SZ185C 0% 25%

SZ185C 25%

SZ185C 0%

NRA 750 NRC 750 NLW 750

29% SZ240V

29% SZ240V

21% SZ185V

21% SZ185V

0%

29% SZ240V

29% SZ240V

21% SZ185V

21% SZ185V

0%

NRA 800 NRC 800 NLW 800

25% SZ 240

25% SZ 240 0% 25%

SZ 240 25%

SZ 240 0%

NRA 900 NRC 900 NLW 900

22% SZ 240

22% SZ 240 0% 28%

SZ 300 28%

SZ 300 0%

NRA 1000 NRC 1000 NLW 1000

25% SZ 300

25% SZ 300 0% 25%

SZ 300 25%

SZ 300 0%

NRA 1200 (OBSOLETO)

17% SZ 240

17% SZ 240

16% SZ 240

17% SZ 240

17% SZ 240

16% SZ 240

NRA 1250 25% SZ 380

25% SZ 380 0% 25%

SZ 380 25%

SZ 380 0%

NRA 1350 (OBSOLETO)

16% SZ 240

15% SZ 240

14% SZ 240

19% SZ 300

19% SZ 300

18% SZ 300

NRA 1400 23% SZ 380

23% SZ 380

0%

18% SZ 300

18% SZ 300

18% SZ 300

NRA 1500 17% SZ 300

17% SZ 300

16% SZ 300

17% SZ 300

17% SZ 300

16% SZ 300

33

Units Power CP1

Power CP1A

Power CP1B

Power CP2

Power CP2A

Power CP2B

NRA 1650 15% SZ 300

15% SZ 300

15% SZ 300

19% SZ 380

18% SZ 380

18% SZ 380

NRA 1800 17% SZ 300

17% SZ 300

16% SZ 300

17% SZ 300

17% SZ 300

16% SZ 300

(*) Please refer to paragraph PARAMETER ESTABLISHMENT of units Compressors spare part code utilize on NRA, NRC, NLW, NBW units Important: Please refer to sure to the version or comm. number of unit Model ZR 81 code 9106132 Model SZ 120 code 9106841 Model SZ 161 code 9106904 Model SZ 185 code 9106842 Model SZ 240 code 9108737 Model SZ 300 code 9108741 Model SZ 380 code 9113002

99

Software Configuration Parameters The software that is programmed on the card GR3 includes its configuration parameters, which correspond to a standard version of the car. In relation to the different versions and accessories available for the correct behavior of the software should verify that all configuration parameters of the software are correct. This procedure still has to be testing the car at the end of the line and in the case of cards replaced in parts. In order to expedite this operation, the process involves going to check and change only those parameters that are different than the standard version precharged. To perform this configuration you must: 1) Consider each group of modified Group Models of machine or

equipment for which adjustment is required

Mode for choosing the new value to set

Parameters to modify

2) Check if the unit is into the description 3) Change the parameters describe into this column Dip switches settings on the GR board SW1 default all OFF DIP UNIT MODEL ON 1 TOTAL RECOVERY

All models NRA with total recovery (T) X

2 always OFF 3 1 FAN GROUP

• All NRC centrifugal models • NRA from 275 to 750 included

X

4 CENTRIFUGAL All NRC models

X

5 HEAT PUMP All Heat pump models NRA and NRC and NBW (H) All NLW models

X

6 FREECOOLING All NRA models with freecooling (F)

X

7 NBW X 8 MOTOCONSING

All NRA and NRC models without evaporator exchanger (C) X

100

SW2 default all OFF DIP UNIT MODEL ON 1 SMALL TIME

always OFF

2 WATER COOLING AND HEAT PUMP All NLW models (without evaporator unit E version) and NBW version (without evaporator unit E version)

X

3 4 COMPRESSORS MODEL All NRC model until 1000 included All NRA until 1000 included NRA 1250 and NRA 2000, 2250, 2500 electronic boards Master e Slave All NLW / E (evaporator unit) and NBW / E (evaporator unit)

X

4 AUTOTEST always OFF

X

SW3 default all OFF DIP UNIT MODEL ON 1 FL not primary

always OFF

2 AP1 not primary always OFF

3 TV1/TMPOC not primary always OFF

4 AP2 not primary always OFF

5 All models X

101

Group Units model where is

necessary the modifications

Choice new value settings Modificantion parameters

NRA 275 NRA 325 NRA 350

NRC 275 NRC325 NRC350

NBW 147 NBW 207 NBW 307 NBW 407

PowerCP1 50 PowerCP1A 0 PowerCP1B 0 PowerCP2 50 PowerCP2A 0 PowerCP2B 0

NRA 300 NRC300

PowerCP1 58 PowerCP1A 0 PowerCP1B 0 PowerCP2 42 PowerCP2A 0 PowerCP2B 0

NRA 500 NRC500

NLW500

PowerCP1 28 PowerCP1A 28 PowerCP1B 0 PowerCP2 44 PowerCP2A 0 PowerCP2B 0

NRA 550

PowerCP1 34 PowerCP1A 26 PowerCP1B 0 PowerCP2 40 PowerCP2A 0 PowerCP2B 0

NRC 550 NLW550

PowerCP1 26 PowerCP1A 34 PowerCP1B 0 PowerCP2 40 PowerCP2A 0 PowerCP2B 0

A

All models with the exception of condensing models (G group) (Power compressors parameters to change)

NRA 600 NRC600 NRC750

NLW600NLW750

PowerCP1 29 PowerCP1A 21 PowerCP1B 0 PowerCP2 29 PowerCP2A 21 PowerCP2B 0

102

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

NRA750 PowerCP1 29 PowerCP1A 21 PowerCP1B 0 PowerCP2 21 PowerCP2A 29 PowerCP2B 0

NRA 650 NRA 700 NRA 800 NRA 1000 NRA 1250

NRC650 NRC700 NRC800 NRC1000

NLW650 NLW700 NLW800

NLW1000

PowerCP1 25 PowerCP1A 25 PowerCP1B 0 PowerCP2 25 PowerCP2A 25 PowerCP2B 0

NRA 900 NRC900

NLW900

PowerCP1 22 PowerCP1A 22 PowerCP1B 0 PowerCP2 28 PowerCP2A 28 PowerCP2B 0

NRA 1200 (obsoleto) NRA 1500 NRA 1800

PowerCP1 17 PowerCP1A 17 PowerCP1B 16 PowerCP2 17 PowerCP2A 17 PowerCP2B 16

A All models with the exception of condensing models (G group) (Power compressors parameters to change)

NRA 1350 (obsoleto)

PowerCP1 15 PowerCP1A 15 PowerCP1B 14 PowerCP2 19 PowerCP2A 19 PowerCP2B 18

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

103

NRA 1400

PowerCP1 23 PowerCP1A 23 PowerCP1B 0 PowerCP2 18 PowerCP2A 18 PowerCP2B 18

NRA 1650

PowerCP1 15 PowerCP1A 15 PowerCP1B 15 PowerCP2 19 PowerCP2A 18 PowerCP2B 18

NRA 2000, 2250, 2500 Scheda Master e Slave

PowerCP1 25 PowerCP1A 25 PowerCP1B 0 PowerCP2 25 PowerCP2A 25 PowerCP2B 0

NRA 2800 Scheda Master e Slave

PowerCP1 20 PowerCP1A 20 PowerCP1B 0 PowerCP2 20 PowerCP2A 20 PowerCP2B 20

A All models with the exception of condensing models (G group) (Power compressors parameters to change)

NRA 3000, 3300, 3600 Scheda Master e Slave

PowerCP1 16 PowerCP1A 16 PowerCP1B 16 PowerCP2 16 PowerCP2A 16 PowerCP2B 16

104

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

01 05 P1

N° Pumps 1 N° Pumps ON 1 Pump AG ON

02 06 P2

N° Pumps 2 N° Pumps ON 1 Pump AG ON

03 , 07and P3 models 275,300,325,350,500,550

N° Pumps 1 N° Pumps ON 1 Pump AG ON

03 , 07 and P3 models 600,650,700

N° Pumps 2 N° Pumps ON 2 Pump AG ON

04 , 08 and P4 models 275,300,325,350,500,550

N° Pumps 2 N° Pumps ON 1 Pump AG ON

04 , 08 and P4 modelli 600,650,700 with pumps SALMSON

N° Pumps 3 N° Pumps ON 2 Pump AG ON

NRA and NRC from 275 to 700 sizes with buffer tank (14 and 15 fields of commercial configuration rules)

04 , 08 e P4 modelli 600,650,700 with pumps EBARA

N° Pumps 2 N° Pumps ON 1 Pump AG ON

01, 03, 05, 07, F3 N° Pumps 1 N° Pumps ON 1 Pump AG ON

From NRA NRC 800 to NRA NRC 1000 with buffer tank (14 and 15 fields of commercial configuration rules)

02, 04, 06, 08, F4 N° Pumps 2 N° Pumps ON 1 Pump AG ON

B

From NRA NRC 1200 to NRA 1500 with buffer tank (14 and 15 fields of commercial configuration rules)

01, 02, 03, 04, 05, 06 07, 08, F3, F4

N° Pumps 1 N° Pumps ON 1 Pump AG ON

105

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

From NRA 1600 to NRA 3000 (14 and 15 fields of commercial configuration rules)

01, 03, P1, P3 Master N° Pumps 1 N° Pumps ON 1 Pump AG ON Slave N° Pompe 1 N° Pompe ON 1

B continued

From NRA 1600 to NRA 3000 (14 and 15 fields of commercial configuration rules)

02, 04, P2, P4 Master N° Pumps 2 N° Pumps 1 Pump AG ON Slave N° Pumps 1 N° Pumps ON 1

C NRA, NRC, NLW Low temperatureY versions

All AG Evap. OFF Set AGC1 -10.0 SetFreddo -6.0

D NRA Silence L versions

All Cond. hig 19 bar Diff. hig 5 bar DcpR On 27 bar

E NRA Freecooling F versions

All In / Usc H2O OUT

F NRA and NRC Heat pump H versions with only one mono compressor circuit

NRA and NRC 275 300 325 350 500 550

Coeff PD 0 t.1 cp PD 0 (set factory menu)

106

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

With compressors rotation Chillers with 2 compressors NRA and NRC 275 300 325 350

PowerCP1 50 PowerCP1A 0 PowerCP1B 0 PowerCP2 50 PowerCP2A 0 PowerCP2B 0

G NRA and NRC C versions condensing units without evaporator plate exchanger

With compressors rotation Chillers with 3 compressors NRA and NRC NRA e NRC 500 550

PowerCP1 33 PowerCP1A 33 PowerCP1B 0 PowerCP2 33 PowerCP2A 0 PowerCP2B 0

107

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

With compressors rotation Chillers with 4 compressors NRA e NRC 600 650 700 750 800 900 1000 1250

PowerCP1 25 PowerCP1A 25 PowerCP1B 0 PowerCP2 25 PowerCP2A 25 PowerCP2B 0

With compressors rotation Chillers with 4 compressors NRA e NRC 1400

PowerCP1 20 PowerCP1A 20 PowerCP1B 0 PowerCP2 20 PowerCP2A 20 PowerCP2B 20

With compressors rotation Chillers with 6 compressors NRA 1200 (obsolete) NRA 1350 (obsolete) NRA 1500 NRA 1650 NRA 1800

PowerCP1 15 PowerCP1A 15 PowerCP1B 15 PowerCP2 15 PowerCP2A 15 PowerCP2B 15

G NRA and NRC C versions condensing units without evaporator plate exchanger

Without compressors rotation Chillers with 2 compressors NRA e NRC 275 300 325 350

PowerCP1 100 PowerCP1A 0 PowerCP1B 0 PowerCP2 100 PowerCP2A 0 PowerCP2B 0

108

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

Without compressors rotation Chillers with 3 compressors NRA e NRC 500 550

PowerCP1 100 PowerCP1A 100 PowerCP1B 0 PowerCP2 100 PowerCP2A 0 PowerCP2B 0

Without compressors rotation Chillers with 4 compressors NRA e NRC 600 650 700 750 800 900 1000 1250

PowerCP1 100 PowerCP1A 100 PowerCP1B 0 PowerCP2 100 PowerCP2A 100 PowerCP2B 0

Without compressors rotation Chillers with 4 compressors NRA e NRC 1400

PowerCP1 100 PowerCP1A 100 PowerCP1B 0 PowerCP2 100 PowerCP2A 100 PowerCP2B 100

G NRA and NRC C versions condensing units without evaporator plate exchanger

Without compressors rotation Chillers with 6 compressors NRA 1200 (obsolete) NRA 1350 (obsolete) NRA 1500 NRA 1650 NRA 1800

PowerCP1 100 PowerCP1A 100 PowerCP1B 100 PowerCP2 100 PowerCP2A 100 PowerCP2B 100

H NRA and NRC H heat pump versions

All P. In S. 2.1 bar

I NRA, NRC, NLW, NBW All B.AG Evap 120 s.

L NLW e NBW E motoevaporating versions

If connect the remote air condenser coil with 1 fans group

Dip-switch 3 di SW1 ON

109

Group Units model where is

necessary the modifications

New value settings Modificantion parameters

M NRA F freecooling versions

NRA 800 NRA 900 NRA 1000 NRA 1200 (obsolete) NRA 1250 NRA 1350 (obsolete) NRA 1400 NRA 1500 NRA 1650 NRA 1800

Step Free 3 (set factory menu)

All Setting Slave board in REMOTE (L/R bottom in R position)

Master board Setting serial address 001 (dip switch SW1 on display board with microswitch 1 in OFF position the rest in ON position)

N

NRA from 1600 to 3000

Slave board Setting serial address 002 (dip switch SW1 on display board with microswitch 2 in OFF position the rest in ON position)