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AERMEC NRP 0200 Technical Manual Download Page 11

11

Aermec cod. 5806715_00 12.01

NRP 0200-0750

EN

HPT

HPS

LS

LPT

IDL

CP

CN

CV

CV

CV

CV

CV

TEV

F

AL

VIC

TEV

HPT

HPS

LS

VIC

LPT

IDL

CP

CN

CV

CV

CV

CV

CV

TEV

F

AL

VIC

TEV

HPT

HPS

LS

LPT

IDL

CP

CN

CV

CV

CV

CV

CV

TEV

F

AL

VIC

TEV

HPT

HPS

LS

VIC

LPT

IDL

CP

CN

CV

CV

CV

CV

CV

TEV

F

AL

VIC

TEV

4.2.  HOT WATER PRODUCTION ONLY TO SYSTEM

4.3.  SIMULTANEOUS HOT AND COLD WATER PRODUCTION TO SYSTEM

Description

Functioning

1

Cooling side
EXCHANGER

(EVAPORATION)
Cold water production

2

Heating side
EXCHANGER

(CONDENSATION)
Hot water production

3

Source side 
HEAT EXCHANGER

Not running

H

2

O SYSTEM 

RETURN

H

2

O SYSTEM 

RETURN

H

2

O SYSTEM 

FLOW

H

2

O SYSTEM 

FLOW

2

PIPE

 S

YS

TEM

4

PIPE

 S

YS

TEM

1

1

3

3

3

3

2

2

Key

1

System side heat exchanger

2

DHW side heat exchanger

3

Source side heat exchanger

AL

Liquid storage tank

CV

One-way valve

F

Dehydrator filter

IDL

Liquid indicator

HPT

High pressure transducer

HPS

High pressure pressure switch

LPT

Low pressure transducer

LS

Liquid separator

TEV

Thermostatic valves

VIC

Cycle reversing valve

H

2

O DHW 

RETURN

H

2

O DHW 

FLOW

Description

Functioning

1

Cooling side
EXCHANGER

Not running

2

Heating side
EXCHANGER

(CONDENSATION)
Hot water production

3

Source side 
HEAT EXCHANGER

(EVAPORATION)
Heat exchange with air

Summary of Contents for NRP 0200

Page 1: ...INRPPY 12 01 5806715_00 MULTIPURPOSE UNITS FOR 2 4 PIPE SYSTEMS Technical manual NRP 0200 0750 REVERSIBLE HEAT PUMPS OUTDOOR UNIT HIGH EFFICIENCIES EN ...

Page 2: ...sult of many years of experience and in depth engineering research and it is built using top quality materials and advanced technologies In addition the EC mark guarantees that our appliances fully comply with the requirements of the European Machinery Directive in terms of safety We constantly monitor the quality level of our products and as a result they are synonymous with Safety Quality and Re...

Page 3: ...ressure pumps in cooling mode system side 22 14 Ethylene glycol solu ons 23 14 1 How to interpret glycol curves 23 15 Expansion vessel calibra on 24 16 Minimum water content 24 17 Par alisa ons 25 18 Sound data 26 19 Calibra ons of safety and control parameters 27 20 General warnings 28 20 1 Preserva on of the documenta on 28 20 2 Installa on 28 20 3 Warranty 28 20 4 Warnings regarding safety and ...

Page 4: ...4 Aermec cod 5806715_00 12 01 NRP 0200 0750 EN ...

Page 5: ...y and electromagnetic emissions for industrial environments EN378 Refrigerating system and heat pumps Safety and environmental requirements UNI EN 12735 UNI EN 14276 Seamless round copper tubes for air conditioning and refrigeration Pressure equipment for cooling systems and heat pumps Thereby compliant with the essential requirements of the following directives LVD Directive 2006 95 EC Electromag...

Page 6: ...alid alternative to traditional systems based on the chiller boiler combination The microprocessor control logic ensures perfectly satisfying heat and cooling loads The operating modes are PRODUCTION OF COOLED WATER ONLY The multipurpose unit acts as a classical refrigerator cool water to the system and condensation heat disposal outside through finned coils PRODUCTION OF HOT WATER ONLY The multip...

Page 7: ...ith holes for integrative resistance high static pressure pump system side 08 Storage tank with holes for integrative resistance high static pressure pump reserve pump system side P1 Low static pressure pump system side P2 Low static pressure pump reserve pump system side P3 High static pressure pump system side P4 High static pressure pump reserve pump system side 15 16 DHW SIDE HYDRONIC KIT 2 00...

Page 8: ...EXCHANGER Not running 3 Source side HEAT EXCHANGER CONDENSATION Heat exchange with air Description Functioning 1 System side HEAT EXCHANGER CONDENSATION Hot water production 2 DHW side HEAT EXCHANGER Not running 3 Source side HEAT EXCHANGER EVAPORATION Heat exchange with air H2 O SYSTEM RETURN H2 O SYSTEM RETURN H2 O SYSTEM FLOW H2 O SYSTEM FLOW 1 2 3 3 1 2 3 3 2 PIPE SYSTEM 4 PIPE SYSTEM Key 1 Sy...

Page 9: ...ction 3 Source side HEAT EXCHANGER EVAPORATION Heat exchange with air Description Functioning 1 System side HEAT EXCHANGER EVAPORATION Cold water production 2 DHW side HEAT EXCHANGER CONDENSATION DHW production 3 Source side HEAT EXCHANGER Not running H2 O DHW RETURN H2 O DHW FLOW H2 O DHW RETURN H2 O SYSTEM RETURN H2 O DHW FLOW H2 O SYSTEM FLOW 1 2 3 3 1 2 3 3 2 PIPE SYSTEM 4 PIPE SYSTEM Key 1 Sy...

Page 10: ...T EXCHANGER EVAPORATION Heat exchange with air H2 O SYSTEM RETURN H2 O SYSTEM RETURN H2 O SYSTEM FLOW H2 O SYSTEM FLOW 1 1 3 3 3 3 Description Functioning 2 DHW side HEAT EXCHANGER CONDENSATION DHW production 3 Source side HEAT EXCHANGER EVAPORATION Heat exchange with air H2 O DHW RETURN H2 O DHW FLOW 2 2 Description Functioning 1 System side HEAT EXCHANGER EVAPORATION Cold water production 2 DHW ...

Page 11: ...er production 3 Source side HEAT EXCHANGER Not running H2 O SYSTEM RETURN H2 O SYSTEM RETURN H2 O SYSTEM FLOW H2 O SYSTEM FLOW 2 PIPE SYSTEM 4 PIPE SYSTEM 1 1 3 3 3 3 2 2 Key 1 System side heat exchanger 2 DHW side heat exchanger 3 Source side heat exchanger AL Liquid storage tank CV One way valve F Dehydrator filter IDL Liquid indicator HPT High pressure transducer HPS High pressure pressure swit...

Page 12: ...der to ensure a correct heating level of the intake gas SOLENOID VALVES The valve closes when the compressor switches off blocking the flow of refrigerant gas to the evaporator recovery and the coil INDICATOR FOR LIQUID Used to check presence of humidity in cooling circuit 5 2 STRUCTURE AND FANS SUPPORT STRUCTURE Structure made of hot dipped galvanised steel sheets painted with polyester powders b...

Page 13: ...ol board generating a pre warning in the case of anomalous pressures COOLING CIRCUIT SAFETY VALVES They intervene by discharging the overpressure in the case of anomalous pressures Calibrated at 45 bar on HP branch Calibrated at 30 bar on LP branch DCPX CONDENSATION PRESSURE CONTROLLER This accessory allows correct functioning with external temperatures lower than 10 C and as low as 10 C It consis...

Page 14: ...t be replaced with the specific TRX1 if installation of one or all the resistances is not foreseen 6 2 ELECTRIC ACCESSORIES AER485P1 RS 485 interface for supervising systems with MODBUS protocol AERWEB300 Accessory AERWEB allows remote control of a chiller through a common PC and an ethernet connection over a common browser 4 versions available AERWEB300 6 Web server to monitor and remote control ...

Page 15: ...34 TOTAL RECOVERY Cooling capacity HA kW 45 52 58 68 73 86 102 110 132 147 167 200 HE kW 102 110 132 147 167 200 Recovered power HA kW 58 67 75 88 95 111 132 142 174 193 218 261 HE kW 132 142 174 193 218 261 Total input power HA kW 13 0 15 2 17 5 20 0 22 0 25 0 30 0 32 0 42 0 46 5 51 0 61 0 HE kW 30 0 32 0 42 0 46 5 51 0 61 0 TER Total Efficiency Ratio W W 7 92 7 82 7 57 7 80 7 64 7 88 7 80 7 88 7...

Page 16: ... 5 LOW STATIC PRESSURE PUMP Input power kW 1 1 1 1 1 1 1 1 1 1 1 1 1 5 1 5 1 5 1 5 1 9 3 Input current A 2 7 2 7 2 7 2 7 2 7 2 7 3 6 3 6 3 6 3 6 5 6 2 HIGH STATIC PRESSURE PUMP Input power kW 1 5 1 5 1 5 1 5 1 5 1 5 1 9 1 9 3 3 3 5 5 Input current A 3 6 3 6 3 6 3 6 3 6 3 6 5 5 6 2 6 2 6 2 11 SAFETY VALVE Safety valve n bar 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 6 DHW SYSTEM SIDE HEAT EXCHAN...

Page 17: ... dB A 74 74 74 75 75 76 82 82 82 83 85 85 HE dB A 74 74 74 75 77 77 FUNCTIONING IN HEATING MODE Sound pressure dB A 42 42 42 43 43 44 50 50 50 51 53 53 Sound power dB A 74 74 74 75 75 76 82 82 82 83 85 85 LOADS The declared data can be amended any time Aermec considers it necessary R410A refrigerant C1 C2 C1 kg 8 8 8 10 10 10 18 18 20 20 24 36 C2 kg 8 8 8 10 10 10 15 15 20 20 24 36 Oil C1 C2 C1 kg...

Page 18: ...limits 8 1 COOLING MODE The units in standard configuration are not suitable for installation in salty environments For functioning limits please refer to the diagrams valid for t 5 C 8 2 HEATING MODE External air temperature d b C Produced water temperature EVAPORATOR C 15 10 5 0 5 10 15 20 25 30 35 40 45 46 50 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 0 5 10 15 20 25 30 35 40 45 50 55 60 15 ...

Page 19: ...7 18 ϰϲ Σ ϰϲ Σ ϰϱ Σ ϰϬ Σ ϯϱ Σ ϯϬ Σ Ϯϱ Σ ϮϬ Σ ϰϱ Σ ϰϬ Σ ϯϱ Σ ϯϬ Σ Ϯϱ Σ ϮϬ Σ Produced water temperature EVAPORATOR C External air temperature d b C Corrective coefficients TOTAL INPUT POWER External air temperature d b C Corrective coefficients COOLING CAPACITY ΔT WATER DIFFERENT THAN NOMINAL ΔT 5 C 3 5 8 10 Cooling capacity correction factors 0 99 1 1 02 1 03 Input power correction factors 0 99 1 1...

Page 20: ... 11 13 15 17 19 21 23 25 27 2930 0 7 0 8 0 9 1 0 1 1 1 2 1 3 0 5 0 6 0 7 0 8 0 9 1 0 1 1 1 2 1 3 1 4 40 C 40 C 45 C 45 C 50 C 50 C 55 C 55 C 15 13 11 9 7 5 3 1 1 3 5 7 9 11 13 15 17 19 21 23 25 27 2930 Produced water temperature CONDENSER C Produced water temperature CONDENSER C External air temperature d b C 11 CORRECTIVE COEFFICIENTS OF RECOVERED HEATING CAPACITY Temperature of the water produce...

Page 21: ...700 12 NRP0750 1 2 3 4 5 6 7 8 9 10 11 12 0 20 40 60 80 100 120 140 160 180 200 220 240 0 10000 20000 30000 40000 50000 60000 70000 80000 1 NRP0200 2 NRP0240 3 NRP0280 4 NRP0300 5 NRP0330 6 NRP0350 7 NRP0500 8 NRP0550 9 NRP0600 10 NRP0650 11 NRP0700 12 NRP0750 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 0 20 40 60 80 100 120 140 160 180 200 220 240 260 0 10000 20000 30000 40000 50000 600...

Page 22: ... Water flow rate l h Water flow rate l h 0 50 100 150 200 250 0 5000 10000 15000 20000 25000 30000 35000 330 350 700 500 550 600 650 280 300 200 240 1 2 3 4 5 6 7 8 9 10 11 12 NRP0200 NRP0240 NRP0280 NRP0300 NRP0330 NRP0350 NRP0500 NRP0550 NRP0600 NRP0650 NRP0700 NRP0750 0 50 100 150 200 250 300 350 1 2 3 4 6 7 8 9 10 12 0 5000 10000 15000 20000 25000 30000 35000 40000 45000 50000 55000 11 5 Water...

Page 23: ...perature is on the lower axis If you wish to calculate the percentage of glycol on the basis of the temperature of the water produced enter from the right axis and on reaching the curve draw a ver cal line which in turn will intercept all the other curves the points obtained from the upper curves represent the coefficients for the correc on of the cooling capacity and input power the flow rates and ...

Page 24: ...ighest installation is not higher than 55 metres 2 Ensure that lowest installation can withstand global pressure in that position H max 1 55 m H 12 25 m H H 0 m Ptar H 10 2 0 3 Ptar 1 5 bar Ptar 1 5 bar H min 2 16 MINIMUM WATER CONTENT ATTENTION It is recommended to design systems with high water content minimum recommended values shown in table to limit 1 The hourly number of inversions between f...

Page 25: ...APACITY 1st 2nd 3rd 4th 0200 50 100 0240 50 100 0280 50 100 0300 50 100 0330 50 100 0350 50 100 0500 35 70 100 0550 31 63 100 0600 23 48 73 100 0650 23 48 73 100 0700 23 48 73 100 0750 27 52 73 100 INPUT POWER 1st 2nd 3rd 4th 0200 45 100 0240 45 100 0280 45 100 0300 45 100 0330 45 100 0350 45 100 0500 30 65 100 0550 26 58 100 0600 20 45 70 100 0650 20 45 70 100 0700 20 45 70 100 0750 23 47 73 100 ...

Page 26: ... HE 74 42 57 72 2 61 1 66 4 63 5 61 0 50 0 43 7 0240 HE 74 42 57 72 2 61 1 66 4 63 5 61 0 50 0 43 7 0280 HE 74 42 57 72 2 61 1 66 4 63 5 61 0 50 0 43 7 0300 HE 75 43 57 73 1 62 2 67 1 64 3 62 0 51 0 44 5 0330 HE 75 43 57 73 1 62 0 67 1 64 3 62 1 51 3 44 8 0350 HE 76 44 58 74 1 63 0 68 1 65 6 62 6 53 0 45 1 0500 HE 82 50 64 68 1 69 8 74 0 76 7 76 5 74 1 63 8 0550 HE 82 50 64 68 1 69 9 75 0 77 5 76 ...

Page 27: ...activated 3 C 10 C 5 C COMPRESSOR MAGNET CIRCUIT BREAKERS 0200 0240 0280 0300 0330 0350 0500 0550 0600 0650 0700 0750 MTC1 A 17 17 23 28 28 29 23 28 28 28 29 29 MTC1A A 23 23 23 28 29 29 MTC2 A 17 23 23 23 28 29 28 29 28 28 29 40 MTC2A A 23 28 29 40 MANUALLY RESET HIGH PRESSURE SWITCH PA bar 40 40 40 40 40 40 40 40 40 40 40 40 HIGH PRESSURE TRANSDUCER TAP bar 39 39 39 39 39 39 39 39 39 39 39 39 LO...

Page 28: ...oned indications 20 4 WARNINGS REGARDING SAFETY AND INSTALLATION STANDARDS The heat pump must be installed by a qualified and suitably trained technician in compliance with the national legislation in force in the country of destination AERMEC will not assume any responsibility for damage due to failure to follow these instructions Before beginning any operation READ THESE INSTRUCTIONS CAREFULLY A...

Page 29: ...ition The instructions found on the machine are an integral part of the same They must be read and kept carefully ATTENTION The units CANNOT be stacked 22 3 SELECTION AND PLACE OF INSTALLATION The NRP air water OUTDOOR heat pump with gas side conversion R410A is sent from the factory already inspected and only requires electric and hydraulic connections in the place of installation Before beginnin...

Page 30: ...2 31 557 1003 24 27 23 26 17 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D NRP0200 00 818 556 1017 24 26 24 26 NRP0240 00 820 556 1015 24 27 24 26 NRP0280 00 823 557 1013 24 27 23 26 17 1100 1606 2700 ATTENTION The unit is supplied fastened to a pallet use poles not supplied for handling with forklift trucks and belt...

Page 31: ... 27 17 NRP0280 2 pumps 832 31 556 1058 23 25 25 27 17 NRP0280 3 pumps 847 31 556 1077 23 25 25 28 17 NRP0280 4 pumps 862 31 556 1096 22 24 25 28 17 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS VT KIT WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D NRP0200 01 03 1248 554 1204 20 22 28 31 NRP0200 02 04 1263 554 1216 19 21 28 31 NRP0200 1 pump 853 556 1056 23 25 24 ...

Page 32: ...P0350 00 894 31 557 1143 21 23 26 29 17 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D NRP0300 00 893 556 1167 20 23 27 30 17 NRP0330 00 905 556 1167 20 23 27 30 17 NRP0350 00 930 556 1144 21 23 27 29 17 ATTENTION The unit is supplied fastened to a pallet use poles not supplied for handling with forklift trucks and be...

Page 33: ...24 27 17 NRP0350 2 pumps 934 31 556 1066 23 25 25 27 17 NRP0350 3 pumps 949 31 556 1083 22 25 25 28 17 NRP0350 4 pumps 964 31 556 1099 22 24 25 28 17 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS VT KIT WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D NRP0300 01 03 893 554 1210 20 21 28 31 13 NRP0300 02 04 1323 554 1304 17 19 30 33 13 NRP0300 1 pump 1338 556 1076 2...

Page 34: ...NRP0650 00 1378 37 551 1485 27 27 23 23 13 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D NRP0500 00 1282 526 1537 28 25 24 22 13 NRP0550 00 1286 526 1534 28 25 24 22 13 NRP0600 00 1412 551 1505 27 27 23 23 13 NRP0650 00 1434 551 1499 27 27 23 23 13 ATTENTION The unit is supplied fastened to a pallet use poles not sup...

Page 35: ... 26 26 24 24 13 NRP0650 2 pumps 1387 37 551 1524 27 27 23 23 13 NRP0650 3 pumps 1525 37 553 1598 25 26 24 24 13 NRP0650 4 pumps 1507 37 551 1578 26 26 24 24 13 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS VT KIT WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D NRP0500 01 03 1900 534 1785 23 22 28 26 10 NRP0500 02 04 1918 534 1798 23 22 28 27 10 NRP0500 1 pump 1320...

Page 36: ...mps 1769 50 552 2096 8 8 31 30 12 12 22 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS VT KIT WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D E F NRP0700 00 1658 552 1936 8 8 31 32 10 10 22 NRP0700 01 03 2276 552 2156 5 5 34 34 11 11 22 NRP0700 02 04 2294 552 2167 5 5 34 34 11 11 22 NRP0700 1 pump 1720 552 1991 8 8 31 31 11 11 22 NRP0700 2 pumps 1762 552 2029 8 8 3...

Page 37: ... 0750 EN 4350 95 1500 1975 23 5 NRP 0750 50mm 62mm 62mm 62mm ATTENTION The unit is supplied wrapped in estincoil it must be lifted using suitable belts hooked to all the installed eyebolts 800 mm 1100 mm 800 mm 800 mm NRP 0700 0750 3 000 mm ...

Page 38: ...9 50 757 1895 9 10 15 15 22 23 3 3 23 NRP0750 4 pompe 2179 50 757 1932 9 10 14 15 22 24 3 3 23 WEIGHT OF UNITS WHEN RUNNING HYDRONIC KIT BARYCENTRE mm WEIGHT DISTRIBUTION ON SUPPORTS VT KIT WEIGHT UNIT WEIGHT PALLET Gx Gy A B C D E F G H NRP0750 00 2006 50 755 1758 10 10 17 17 20 21 2 3 23 NRP0750 01 03 2256 50 754 1922 9 10 14 15 22 23 3 3 23 NRP0750 02 04 2196 50 754 1885 9 10 14 15 22 23 3 3 23...

Page 39: ... 08 ø 2 2 2 2 2 2 2 2 2 2 2 3 4 Return from system vers 01 08 ø 2 2 2 2 2 2 2 2 2 2 2 3 5 Return from DHW system heating system side ø 2 2 2 2 2 2 2 2 2 2 2 3 6 Flow to DHW system heating system side ø 2 2 2 2 2 2 2 2 2 2 2 3 POSSIBLE CONFIGURATIONS BETWEEN HYDRONIC KITS recovery hydronic unit system hydronic unit R1 R2 R3 R4 ok ok ok ok ok 01 ok na na na na 02 ok na na na na 03 ok na na na na 04 ...

Page 40: ...atment systems The water features provided in the table can be used as a reference ATTENTION It is prohibited to release water glycol mixtures into the environment ATTENTION It is recommended to design systems with high water content minimum recommended values shown in TAB 1 in order to limit 1 The hourly number of inversions between operating modes 2 Drop in water temperature during winter defros...

Page 41: ...ided in the table can be used as a reference ATTENTION It is prohibited to release water glycol mixtures into the environment ATTENTION It is recommended to design systems with high water content minimum recommended values shown in TAB 1 in order to limit 1 The hourly number of inversions between operating modes 2 Drop in water temperature during winter defrost cycles WATER FEATURES PH 6 8 Electri...

Page 42: ...ust be suitably dimensioned for the effective water flow rate requested by the system when running The water flow rate to the heat exchanger must always be constant ATTENTION Wash the system thoroughly before connecting the unit This cleaning operation will eliminate any residues such as welding drips scale rust or other impurities from the piping These substances can also deposit inside and cause...

Page 43: ... ATTENTION It is prohibited to release water glycol mixtures into the environment ATTENTION It is recommended to design systems with high water content minimum recommended values shown in TAB 1 in order to limit 1 The hourly number of inversions between operating modes 2 Drop in water temperature during winter defrost cycles WATER FEATURES PH 6 8 Electric conductivity Less than 200 mV cm 25 C Chlo...

Page 44: ... the machine must be suitably dimensioned for the effective water flow rate requested by the system when running The water flow rate to the heat exchanger must always be constant ATTENTION Wash the system thoroughly before connecting the unit This cleaning operation will eliminate any residues such as welding drips scale rust or other impurities from the piping These substances can also deposit in...

Page 45: ...ONENTS EXTERNAL TO UNIT ATTENTION The choice and installation of components outside the NRP unit is the installer s responsibility who must operate according to the code of practice and in compliance with the Standard in force in the country of destination ATTENTION The hydraulic connection pipes to the machine must be suitably dimensioned for the effective water flow rate requested by the system ...

Page 46: ...intended pressure value for the system is reached 1 Before beginning emptying place the master switch at OFF 2 Check that the loading water system reintegration cock is closed 3 Open the drain cock outside the appliance and all system vent valves and relative terminals ATTENTION Check the hydraulic sealing of the joints ATTENTION It is recommended to repeat this operation after the appliance has f...

Page 47: ... unit and the physical location and the ambient temperature All the electrical opera ons must be carried out bySTAFF IN POSSESSION OF THE NECESSARY QUALIFICATIONS BY LAW suitably trained and informed on the risks related to these opera ons The characteris cs of the electrical lines and of the related components must be determined by STAFF QUALIFIED TO DESIGN ELECTRICAL SYSTEMS in compliance with t...

Page 48: ...WHEN THE UNIT IS LIVE 1 Supply power to the unit by turning the master switch to the ON position see fig1 The display will come on a few seconds after voltage has been supplied check that the operating status is on OFF OFF BY KEY B on lower side of the display 2 Use a tester to verify that the value of the power supply voltage to the RST phases is equal to 400V 10 also verify that the unbalance be...

Page 49: ...ure falls below the differential value For the set and differential values consult the technical manual The anti freeze control The anti freeze control managed by the electronic regulation and by the temperature probe located at the outlet of the evaporator is to prevent the formation of ice when the water flow rate is too low Correct operation can be checked by progressively increasingly the anti...

Page 50: ...atures pressures etc of the various components of the unit B ON OFF MENU Switches the unit on and off and sets its functioning mode summer winter and time periods 2 PIPE VERSIONS C SYSTEM MENU Management of the chiller parameters standard energy saving work set point D DHW MENU DHW management parameters set point consent temperature time periods etc 4 PIPE VERSIONS C COOLED WATER MENU Management o...

Page 51: ...RX TX RX TX GND Vout C1 NO1 NO2 NO3 C2 NO4 NO5 NO6 NO7 C3 NC7 G G0 B1 B2 B3 B4 B5 B6 B7 GND Vdc Vdc GND 5 Vref GND Y1 Y2 Y3 Y4 DI1 DI2 DI3 DI4 DI5 DI6 DI7 DIC1 B9 B8 B10 B11 B12 GND ID8 ID9 ID10 IDC2 J2 probe supply J3 analog input J4 digital input J5 analog output J18 analog input J17 valve 2 J16 digital input J6 J7 J8 J9 J10 J11 J12 group 1 J13 group 1 J14 group 2 J15 group 3 J1 power supply RX ...

Page 52: ... its products at any moment and is not obliged to add these modifications to machines that have already been fabricated delivered or are under construction AERMEC S p A 37040 Bevilacqua VR Italy Via Roma 996 Tel 39 0442 633111 Telefax 0442 93730 39 0442 93566 www aermec com info aermec com ...

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