Trane Picco R32-140 User& Installer'S Manual Download Page 4

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Picco R32

Inverter air/water heat pumps with axial fan

SHUTDOWNS FOR LONG PERIODS

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MAINTENANCE AND PERIODIC CHECKS

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9.1 GENERALITY

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9.1.1 Cleaning the filled coil treated with the anti-corrosion method

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9.2 CLEANING OF EXTERNAL SURFACES

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9.3 EXTRAORDINARY MAINTENANCE

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10.DECOMMISSIONING

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11.RESIDUAL RISK

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12.TECHNICAL DATA .......................................................................................................... 34

12.1 TECHNICAL SHEET HEAT PUMP

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12.2 UNIT AND AUXILIARY ELECTRICAL DATA

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13.OPERATING LIMITS

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13.1 EVAPORATOR WATER FLOW RATE

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13.2 COLD WATER PRODUCTION (SUMMER MODE)

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13.3 HOT WATER PRODUCTION (WINTER MODE)

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13.4 AMBIENT AIR TEMPERATURE AND SUMMERISED TABLE

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14.USER INTERFACE - CONTROLLER

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14.1 MENU

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14.2 SETPOINT MENU

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14.3 ALARM MENU [ERR]

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15.TROUBLESHOOTING

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Summary of Contents for Picco R32-140

Page 1: ... specifications provided in this manual It is besides forbidden the reproduction under any form of the texts and of the figures contained in this manual This manual is a translation from the official italian language version For reasons of environmental respect the Company will not provide the hard copy in the original language which could be directly requested or downloaded from the Company websi...

Page 2: ...00 06 2021 AL B A R First emission Rev Date Compiled Approved Note Code Serie MUI01080100001 Inverter air water heat pumps with axial fans Picco R32 Inverter air water heat pumps with axial fan 2 ...

Page 3: ...MODE 11 5 4 POSITIONING AND MINIMUM TECHNICAL CLEARANCES 12 5 5 DIMENSIONS 14 5 5 1 Standard version 14 5 5 2 Version with tank kit 14 5 6 CENTRE OF GRAVITY AND DAMPERS LOCATION 15 5 7 ACCESSING THE INNER PARTS 16 5 7 1 Access to the inside of the unit on the electrical panel side 16 5 7 2 Access to the inside of the unit on the hydronic kit side 17 5 8 PLUMBING CONNECTIONS 17 5 8 1 Features of th...

Page 4: ...DINARY MAINTENANCE 29 10 DECOMMISSIONING 29 11 RESIDUAL RISK 30 12 TECHNICAL DATA 34 12 1 TECHNICAL SHEET HEAT PUMP 34 12 2 UNIT AND AUXILIARY ELECTRICAL DATA 38 13 OPERATING LIMITS 38 13 1 EVAPORATOR WATER FLOW RATE 38 13 2 COLD WATER PRODUCTION SUMMER MODE 38 13 3 HOT WATER PRODUCTION WINTER MODE 38 13 4 AMBIENT AIR TEMPERATURE AND SUMMERISED TABLE 38 14 USER INTERFACE CONTROLLER 41 14 1 MENU 42...

Page 5: ...ual has to always be kept together with the unit it refers to It has to be stored in a safe place away from dust and moisture It must be accessible to all users who shall consult it any time they are in doubt on how to operate the equipment The company reserves the right to modify its products and related manuals without necessarily updating previous versions of the reference material We also decl...

Page 6: ...ion as indicated by the medical system used Users of electrically controlled medical devices should exercise caution when interacting with the unit 4 GENERAL SAFETY GUIDELINES Before starting any type of operation on the units every operator must be perfectly familiar with the operation of the machine and its controls and must have read and understood all the information in this manual It is stric...

Page 7: ...issued or acknowledged by the competent authorities attesting that they have passed a test authorising them to perform this work In particular Up to 3kg total refrigerant in the appliance category 2 certification 3 kg e and more total refrigerant in the appliance category 1 certification The gaseous form of R32 refrigerant is heavier than air and if released into the environment most of it tends t...

Page 8: ...ask and eye protection goggles should be used during cleaning operations 4 3 SAFETY SIGNS The unit features the following safety signs wich must be complied with Generic hazard Dangerous electric voltage Moving parts Surfaces wich can cause injuries Boiling surfaces wich can cause burns Fire hazard ...

Page 9: ...low efficient air exchange and or suction the work environments Advice for safe use Do not breath in fumes or aerosol Storage Close carefully and store in a cool dry and well ventilated area Keep in original containers Incompatible products explosive flammable materials organic peroxide EXPOSURE CONTROLS PERSONAL PROTECTION Control parameters OEL data not available DNEL Derived no effect level wor...

Page 10: ...re no fire ignition sources near the unit No smoking near the unit Transport and storage must be performed in accordance with the national regulations in force Specifically according to ADR provisions the total maximum quantity by transport unit in terms of net mass for flammable gases is 333 kg 5 INSTALLATION CAUTION All the operation described below must be done by QUALIFIED PERSONNEL ONLY Befor...

Page 11: ...se the panels by fixing them with screws 5 2 TRANSPORT AND STORAGE LIMIT TEMPERATURE Minimum transport storage temperature C 10 C Maximum transport storage temperature C 50 C 5 3 LIFTING AND HANDLING The handling must be performed by qualified personnel properly equipped with appropriate tools to the weight and the encumbrance of the unit in compliance with safety regulations of accident preventin...

Page 12: ...ger Unit installation place must be free from foliage dust etc which could clog or cover the coil Installation in areas subject to water stagnation or fall for example from gutters should be avoided Also avoid areas subject to snow accumulation such as corners of buildings with sloping roofs In case of installation in ar eas subject to snowfall place the unit on a base raised from the ground by 20...

Page 13: ...vent of side by side units the minimum Lmin distance be tween them is 2200 m L min Covering with canopies or placing near plants or walls should be avoid ed to prevent air circulation In the event of winds stronger then 13 9 17 1 m s the use of wind barriers is recommended We always invite you to make an environmental impact assessment based on the power and sound pressure data shown in chapter Te...

Page 14: ...SL C version mm 1980 IN OUT inch 1 1 2 Grooved E Power supply input D IN OUT inch Hydraulic connections for desuperheater kit 1 G 5 5 2 Version with tank kit A 1110 D E DS OUT 1 G DS IN 1 G E 2365 30 2460 823 5 70 1162 1635 1920 1980 IN OUT 198 5 296 404 1262 5 Dimensions A Lenght mm 2460 B Depht mm 1110 C Height mm 1920 C Height SL C version mm 1980 IN OUT inch 1 1 2 Grooved E Power supply input ...

Page 15: ...d 1110 1754 652 517 With tank kit 1110 2365 970 540 Picco R32 260 Standard 1110 1754 665 520 With tank kit 1110 2365 963 540 Picco R32 270 Standard 1110 1754 683 511 With tank kit 1110 2365 979 533 Version Models Picco R32 140 Picco R32 250 Picco R32 260 Picco R32 270 Standard Shipping weight kg 415 505 525 575 Operating weight kg 410 500 520 570 With pump kit Shipping weight kg 435 535 555 595 Op...

Page 16: ...mpressors it is necessary to access the inside of the unit by opening the door located on the front side where the electrical panel is also located To unlock it it is necessary to unscrew the fixing screws using the appropriate tool and pull it towards you using the handle located under the panel Pay attention to the electrical panel which is bound to the door itself For access to the panel see th...

Page 17: ...e guarantee Loading group and exhaust valve where necessary CAUTION When sizing the pipes make sure not to exceed the maximum pressure drop on plant side reported in the techni cal data table see useful head CAUTION Connect the pipes to their fittings always using the key to key method CAUTION Create a suitable drain for safety valve CAUTION The expansion vessel if present on the unit check the hy...

Page 18: ...ure 65 C Oxygen content 0 1 ppm Max glycol quantity 40 Phosphates PO4 2ppm Manganese Mn 0 05 ppm Iron Fe 0 3 ppm Alkalinity HCO3 70 300 ppm Chloride ions Cl 50 ppm Sulphate ions SO4 50 ppm Sulphide ions S None Ammonium ions NH4 None Silica SiO2 30 ppm 5 8 2 Hydraulic diagram inside the unit The hydraulic connection diagrams to the unit for all the available versions and the legend valid for all th...

Page 19: ...19 STANDARD HYDRONIC CIRCUIT WITH OPTIONAL ACCESSORIES EV CO W IN P DV VSI W OUT W IN WF WF HKA2 HKA1 RV AV AV FC BV HYDRONIC CIRCUIT SINGLE PUMP VERSION WITH OPTIONAL TANK WF WF W IN HKA3 TK VA VA DV AV RV P AV HKA2 W OUT W IN FC EV CO HKA1 DV VSI W OUT BV ...

Page 20: ...ies naturally As the pipes are well insulated condensation production is minimal and therefore there is no need to install drainage systems CAUTION for heat pump units in the event that the prepared ducting system is not used a limited amount of water possi ble ice in the winter period from the condensate drainage system may be deposited in the vicinity of the unit with conse quent danger of slipp...

Page 21: ...lower performance and low exchange output The device also features a safety function because in the event of exchanger breakdown it allows the refrigerant gas to escape outside preventing it fro being conveyed to the internal terminals The valve can be kept in a closed position by closing the plug on the drain by loosening the plug the valve remains in open position and air is discharged automatic...

Page 22: ...nical characteristics table Use a dedicated power line do not power the appliance through a line to which other users are connected Fasten the power cables securely and make sure they do not come into contact with sharp corners Use double insulated cables with copper wires The ground connection must be carried out first during the connection phase vice versa it must be removed last when the unit i...

Page 23: ...munication RS RTU RS 485 X1 1 1 2 Remote on off unit close unit on open unit off Voltage free digital input X2 1 2 2 Remote summer winter mode change input to activate the function see the relative para graph in the MCO manual Voltage free digital input X10 1 10 2 DHW valve control to activate the function see the relevant section in the MCO manual Voltage output 230Vac 50Hz 2A AC1 XPE 1 1 1 2 Ala...

Page 24: ... 2 1 1 2 1 2 2 2 2 2 1 3 1 3 2 3 2 3 1 4 1 4 2 4 2 4 1 5 1 5 2 5 2 5 1 6 1 6 2 6 2 6 1 7 1 7 2 7 2 7 1 8 1 8 2 8 2 8 1 9 1 9 2 9 2 9 1 10 1 10 2 10 2 10 1 L3 1 L3 1 L3 2 L3 2 L3 3 L3 3 N1 N1 N2 N2 N3 N3 PE1 PE1 PE2 PE2 PE3 PE3 L1F1 L1F1 L1F2 L1F2 L1F3 L1F3 D 1 D 1 D 2 D 2 LP1 1 LP1 1 LP1 2 LP1 2 LP1 3 LP1 3 LP2 1 LP2 1 LP2 2 LP2 2 LP2 3 LP2 3 Expansion GI Standard Expansion GI Standard Control ter...

Page 25: ...HIGH PRESSURE TRANSDUCER EEV ELECTRONIC EXPANSION VALVE PED TR 1 LOW PRESSURE TRANSDUCER SV CHARGING ATTACHMENT PSH HIGH PRESSURE SWITCH F FILTER DRIER PSL LOW PRESSURE SWITCH HC CRANKASE HEATER TE SD 1 SUCTION LINE TEMPERATURE PROBE MAF AXIAL FAN TE DT 1 COMPRESSOR DISCHARGE TEMPERATURE PROBE RD SUPPLY LINE H C R WATER INLET RLL LAMINATED LIQUID LINE H C S WATER OUTLET RL LIQUID LINE 5 10 1 Picco...

Page 26: ...te the warranty CAUTION Summer winter operation must be selected at the start of the relative season Frequent and sudden changes of this operation must be avoided so as not to damage the compressors CAUTION Upon initial installation and start up make sure that the machine works properly both in heating and cooling mode 6 1 SWITCHING ON THE UNIT To supply power to the machine turn the external hand...

Page 27: ...ited in the pipes of the refrigeration circuit especially by bends In case of maintenance operations in which it is necessary to unsolder the pipes it is strongly recom mended to proceed with the cutting of the same and not with the desoldering with a torch as the flame triggers any oil present It is prohibited to fill the refrigerant circuits with a refrigerant other than that indicated on the id...

Page 28: ...rectly clean the coil follow the instructions below Remove any superficial filth Debris such as leaves fibres etc must be removed without a vacuum cleaner use a brush or another soft tool carefully avoiding scratching with metal or abrasive parts If you use compressed air pay attention to keep the air flow perpendicular to the surface of the coil in order not to bend the aluminium fins Pay attenti...

Page 29: ...ore the maintenance phase or refer to the label of the component itself and choose the equipment posture most suitable for the work to be carried out taking into account the load limits imposed by the technical standards and the state of health and ability of the worker himself Weight kg Picco R32 Component 140 250 260 270 Compressor 40 6 40 1 39 40 6 Plate exchange coil 21 25 29 35 Desuperheater ...

Page 30: ...shing caused by the possible instability of the unit during handling The procedures for correct unit handling and installation are indicated on the user installer manual under chapter 5 with in dication of the center of gravity of the lifting points and equip ment Protection devices use is also recommended as required by current regulations Failure by the installer to comply with the installation ...

Page 31: ...oce dures by the maintenance techni cian or irresponsible behavior by the user X X Electrical effects on medical implants pacemakers caused by electromagnetic phenomena The user installer manual in chapter 3 states the prohibition of direct interaction with the unit by people with electrically controlled medical devices such as pacemakers It is recommend ed to keep a distance from the installation...

Page 32: ... present Failure to comply with the in structions given in the manual X Generated by materials substances burn scald from escaping refrigerant The safety measures to be adopt ed in case of maintenance clean ing or control of the unit and the personal protective equipment to be equipped are indicated in the user installer manual under chapter 9 Failure to comply with the in structions given in the ...

Page 33: ... user installer manual under chapter 9 contains specific warnings on maintenance and cleaning to be carried out on the surfaces of the sheets and heat exchange coils The technical bulletin provides advice on the treatments to choose based on the environmental conditions Failure to comply with cleaning and maintenance and or incor rect assessment of the atmo spheric agents that characterize the ins...

Page 34: ...to change Always refer to the technical label on the unit for the correct figure 8 The volume indicated refers to the total required the designer must meet it considering the quantity already present inside the unit depend ing on the hydronic kit chosen please check this value in the data sheet 9 Sound power condition 3 value determined on the basis of measurements made in accordance with UNI EN I...

Page 35: ...3800 3800 3800 Refrigerant circuits 1 1 1 1 Refrigerant Type R32 Refrigerant quantity 7 kg 6 5 9 5 11 7 12 0 Refrigerant quantity in tonnes of CO2 equivalent 7 ton 4 4 6 4 7 9 8 1 Design pressure high low heat pump mode bar 46 27 6 Design pressure high low chiller mode bar 46 27 6 External zone fans Type EC Quantity 1 Nominal power 1 kW 1 95 1 95 3 1 3 1 Maximum power input kW 1 95 1 95 3 1 3 1 Ma...

Page 36: ...n tonnes of CO2 equivalent 7 ton 4 4 6 4 7 9 8 1 Design pressure high low heat pump mode bar 46 27 6 Design pressure high low chiller mode bar 46 27 6 External zone fans Type EC Quantity 1 Nominal power 1 kW 1 95 1 95 3 1 3 1 Maximum power input kW 1 95 1 95 3 1 3 1 Maximum current input A 4 8 4 8 4 8 4 8 Nominal air flow L s 4368 5431 6417 5547 Internal heat exchanger Internal heat exchanger type...

Page 37: ...ant quantity in tonnes of CO2 equivalent 7 ton 4 4 6 4 7 9 8 1 Design pressure high low heat pump mode bar 46 27 6 Design pressure high low chiller mode bar 46 27 6 External zone fan Type EC Quantity 1 Nominal power 1 kW 1 95 1 95 3 1 3 1 Maximum power input kW 1 95 1 95 3 1 3 1 Maximum current input A 4 8 4 8 4 8 4 8 Nominal air flow L s 4368 5431 6417 5547 Internal heat exchanger Internal heat e...

Page 38: ... 0 92 Maximum flow switch water flow rate l s 0 58 0 80 0 95 0 95 When the flow rate drops below the indicated limit flow switch minimum water flow rate the flow switch issues an alarm which may be reset only upon reaching the maximum indicated flow rate 13 2 COLD WATER PRODUCTION SUMMER MODE A minimum temperature of 5 C is allowed at the evaporator outlet for standard units For BT units low tempe...

Page 39: ...perature with water at maximum 50 C Minimum 12 C Maximum 39 C Outlet water temperature Minimum 25 C Maximum 58 C The following are the graphical operating limits for air conditioning and domestic hot water production HEAT PUMPE MODE Picco R32 140 Picco R32 270 20 25 30 35 40 45 50 55 60 20 18 16 14 12 10 8 6 4 2 0 2 4 6 8 10 12 14 16 18 20 22 T water C Tair C Pun estremi envelope UNITÀ Riscaldamen...

Page 40: ...4 38 42 46 50 T water C Tair C Standard BT DOMESTIC HOT WATER MODE Picco R32 140 270 20 25 30 35 40 45 50 55 60 20 15 10 5 0 5 10 15 20 25 30 35 40 T water C Tair C Pun estremi envelope UNITÀ ACS DOMESTIC HOT WATER MODE Picco R32 250 260 20 25 30 35 40 45 50 55 60 20 15 10 5 0 5 10 15 20 25 30 35 40 T water C Tair C ...

Page 41: ...he compressor is starting is ON if the compressor is active Domestic hot water led flashes if domestic hot water production is in progress is ON if COOL SAN or HEAT SAN mode is selected and domestic hot water production is not in progress Led KA resistors is lit if the antifreeze resistors are active The buttons have the specific function described below Select the operating mode and manually rese...

Page 42: ...rd and to enable access with a higher user permission When you have exited the menus the password must be entered once again to re enter 14 2 SETPOINT MENU The various setpoints can be viewed and edited Set DESCRIPTION DEFAULT RANGE UNIT Coo First summer setpoint 7 0 5 Coo2 C Hea First winter setpoint 45 0 Hea2 60 C San Sanitary setpoint 48 0 25 60 C San2 Second Sanitary setpoint 48 0 25 60 C Coo2...

Page 43: ...o high Check Poor air flow Poor water flow rate Check the fan and pump operation Low exhaust pressure High outdoor air temperature Low plant return water temperature Residual humidity in the cooling circuit Air in the hydraulic circuit Insufficient refrigerant gas charge Check High suction pressure High outdoor air temperature Low plant return water temperature Expansion valve remains too opened d...

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