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Related Manuals for Fondital PROCIDA AWS X4
Summary of Contents for Fondital PROCIDA AWS X4
- Page 1 X4 - X6 - X8 - X10 INSTALLATION MANUAL SPLIT AIR/ WATER HEAT PUMP Translation original instructions (in Italian) Thank you for choosing a heat pump by Fondital. Carefully read this Manual before using the unit and keep it for future reference.
- Page 2 For users Thank you for choosing a product by Fondital. In order to use the product correctly, please carefully read this instruction manual before installation and use. To achieve the intended operation of the air conditioner, please follow the recommendations below for the proper installation and use of the product: 1.
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Page 3: Table Of Contents
Diagram of the operating principle ..........HEATING AND COOLING AND DHW WITH CIRCUIT BREAKER . - Page 4 Safety warnings (to be strictly adhered to) WARNING: failure to follow these instructions could result in serious damage to the unit or injury to persons. NOTE: failure to follow these instructions could result in minor or moderate damage to the unit or injury to persons. This sign indicates that operation must be prohibited.
- Page 5 WARNING In the event of anomalies, such as a smell of something burning, immediate- ly switch off the unit and contact a service centre. If the anomaly persists, the unit may be damaged and an electric shock or fire may occur. Do not operate the unit with wet hands.
- Page 6 Before cleaning the unit, disconnect it from the mains. Non-compliance could result in risk of an electric shock or damage to prop- erty. The power supply must adopt a special circuit with a residual current circuit breaker and must have sufficient capacity. The user may not replace the power cable socket without the manufacturer's prior consent.
- Page 7 Do not climb on the unit or place objects on it. This could create a falling hazard for people and objects. Do not obstruct the air inlet and outlet areas of the unit. Obstructions could reduce efficiency or cause the unit to shut down or create a fire hazard.
- Page 8 WARNING Do not use any means other than those recommended by the manufacturer to speed up the defrosting process or for cleaning. If a repair is necessary, contact the nearest authorised service centre. Repairs carried out by unqualified personnel could be dangerous. The outdoor unit must be stored in a room free of continuously operating ignition sources (e.g.
- Page 9 The refrigerant used is R32, it is slightly flammable and odourless. It also implies risk of explosion under certain conditions. However, the flammability of the refrigerant is very low. Ignition is only possible with fire. (Open flame) Compared to commonly used refrigerants, R32 is non-polluting and does not damage the ozone layer. This means that it also has a lower greenhouse effect.
- Page 10 Maximum and minimum water temperatures Function Minimum water temperature Maximum water temperature Cooling 7°C 25°C Central heating 20°C 60°C Water heating 40°C 80°C (tank) Maximum and minimum water pressure values Function Minimum water pressure Maximum water pressure Cooling 0.05 MPa 0.25 MPa Central heating Water heating...
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Page 11: Diagram Of The Operating Principle
1. Diagram of the operating principle Economizer Notes Water mixing accessories are provided as an option. If required, please contact the manufacturer. The 3-way valve to install on site must be controlled by the user. Diagram of the operating principle... -
Page 12: Heating And Cooling And Dhw With Circuit Breaker
2. HEATING AND COOLING AND DHW WITH CIRCUIT BREAKER HEATING AND COOLING AND DHW WITH CIRCUIT BREAKER... - Page 13 (**) Extra accessory (***) Not included in extra Fondital accessories (****) To be used if no glycol solution is added to the system water. Does not protect the heat pump in case of power failure. The diagram is purely indicative and for descriptive purposes.
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Page 14: Unit Operating Principle
3. Unit operating principle The air/water heat pump with DC inverter consists of an outdoor unit, an indoor unit and a storage tank with internal fan coil. Functions: (1) Cooling; (2) Heat; (3) Hot Water; (4) Cool + Hot Water; (5) Heat + Hot Water;... - Page 15 Fast Hot Water: in fast water heating mode, the unit operates on the basis of the water heating command from the heat pump and the electric heater of the storage tank also starts up simultaneously. Force mode: this mode is only used for refrigerant recovery and troubleshooting of the unit. Holiday mode: this mode is only available for the heating function.
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Page 16: Name
Model name Capacity Electric power supply Heating , kW Cooling , kW PROCIDA AWS X4 PROCIDA AWS X6 230VAC 50 Hz PROCIDA AWS X8 PROCIDA AWS X10 Notes Power values and input power refer to the following conditions: Internal water temperature 30 °C/35 °C, External air temperature 7 °C DB/6 °C WB;... -
Page 17: Installation Example
5. Installation example SCENARIO 1: Connection of an underfloor coil for heating and cooling Radiant system Outdoor unit Indoor unit Symbol Description Shut-off valve Remote ambient thermostat (provided on site) By-pass valve (provided on site) High-temperature line Low-temperature line Notes The two-way valve is key to avoid condensation on the floor in cooling mode;... - Page 18 SCENARIO 2: Connection of a storage tank for domestic hot water and an underfloor coil Radiant system Outdoor unit Indoor unit Storage tank for domestic hot water Heating element Symbol Description Shut-off valve Remote ambient thermostat (provided on site) By-pass valve (provided on site) Three-way valve (provided on site) High-temperature line Low-temperature line...
- Page 19 SCENARIO 3: Connection of a storage tank for domestic hot water, of an underfloor coil and a fan coil Radiant system Outdoor unit Indoor unit Storage tank for domestic hot water Heating element Symbol Description Shut-off valve Remote ambient thermostat (provided on site) By-pass valve (provided on site) Three-way valve (provided on site) Three-way valve (provided on site)
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Page 20: Key Components
6. Key components Indoor unit PROCIDA IWU 4, PROCIDA IWU 6 Indoor unit Fastening bracket Plate heat exchanger Air escape valve Control unit Heating element Expansion vessel Water pressure gauge Safety valve. Water pump 3-way valve Flow switch Control panel Internal view Key components... - Page 21 PROCIDA IWU 8, PROCIDA IWU 10 Indoor unit Fastening bracket Plate heat exchanger Air escape valve Control unit Heating element Expansion vessel Water pressure gauge Safety valve. Water pump 3-way valve Flow switch Control panel Internal view Key components...
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Page 22: Outdoor Unit
Outdoor unit PROCIDA AWS 4 (O), PROCIDA AWS 6 (O) Outdoor unit Electronic board DC fan motor Compressor Internal view PROCIDA AWS 8 (O), PROCIDA AWS 10 (O) Outdoor unit Control unit DC fan motor Compressor Internal view Key components... -
Page 23: Guidelines For Outdoor Unit Installation
7. Guidelines for outdoor unit installation Safety precautions when using flammable refrigerants 1. For the required qualifications of installation and maintenance personnel, see Section 7 “Installation of the Hydraulic Unit”. All personnel working on the cooling system must hold a valid certification issued by the competent authority and an industry-recog- nised qualification to work on cooling systems. -
Page 24: Instructions For The Installation
5. Filling with refrigerant Use the specific filling equipment for R32 refrigerant. Avoid cross-contamination between different types of refrigerant. The refrigerant tank must be held in vertical position during filling. After refilling (or topping up), apply the corresponding sticker on the system. Do not overfill the system. - Page 25 PROCIDA AWS 8 (O), PROCIDA AWS 10 (O) Description Unit: millimetres Name Notes Service valve - liquid side PROCIDA AWS 4 (O), PROCIDA AWS 6 (O) Service valve - gas side PROCIDA AWS 8 (O), PROCIDA AWS 10 (O) Handle Used to cover or uncover the front housing Air outlet grille 7.2.3...
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Page 26: Indoor Unit Installation
6. Note: support the panel with your hand when loosening and tightening the clamp screw. After connecting the power cable, use the elastic clamp to secure it to the pipe. A = Power cable C = Insulation B = Pipe D = Elastic clamp 8. -
Page 27: Clearances To Be Observed When Installing The Indoor Unit (Mm)
Clearances to be observed when installing the indoor unit (mm) wall wall Phase 1: Drill 3 10 mm holes in the wall according to the sizes given in the drawing below. wall wall Phase 2: Insert the 3 screw anchors into the wall and fasten the bracket with the appropriate bolts anchor bolts mounting bracket wall... -
Page 28: Indoor Unit External Dimensions
Indoor unit external dimensions Name Notes Flow water pipe 1” BSP male Return water pipe 1” BSP male Gas side pipe PROCIDA IWU 4, PROCIDA IWU 6 Liquid side pipe PROCIDA IWU 8, PROCIDA IWU 10 Precautions for indoor unit installation •... -
Page 29: Water Volume And Pressure In The Expansion Tank
Water volume and pressure in the expansion tank P = Preset pressure in the expansion tank V = Total maximum water volume (litres) Notes • The expansion tank has a capacity of 10 litres and is pre-pressurised to 1 bar; •... -
Page 30: Piping Connection
Water expansion coefficient at different temperatures 0,0198 0,0227 0,0258 0,029 0,0324 0,0359 0,0396 0,0434 9. Piping connection Connecting the outlet pipe for indoor unit and outdoor unit 1. Align the copper pipe taper end with the centre of the threaded joint. Tighten the flare nuts by hand. 2. - Page 31 Indoor unit Model Pipe size Length B Height A Additional refrig- erant (Diameter: Φ) Liquid Standard Max. Standard Max. PROCIDA AWS X4 1/2” 1/4” 16g/m PROCIDA AWS X6 1/2” 1/4” 16g/m PROCIDA AWS X8 1/2” 1/4” 16g/m PROCIDA AWS X10 1/2”...
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Page 32: Remote Ambient Temperature Sensor
Remote ambient temperature sensor Front side Rear side Remote ambient temperature sensor 1.5 metres Doors Remote ambient temperature sensor Electric box Notes • The distance between the indoor unit and the remote ambient temperature sensor must be lower than 15 m, because of the length of the remote sensor connection cable;... -
Page 33: Thermostat
• The remote ambient temperature sensor must not be installed in a position where it would be affected by external heat; • The remote ambient temperature sensor must be installed in a position where ambient heating is normally installed; • After installing the remote ambient temperature sensor, it is recommended to set the corresponding option to “With” using the wired control so as to adjust ambient temperature at the control point. -
Page 34: Way Valve
NO valve L1 (OFF) NC valve L2 (ON) A = 2-way valve 1 WARNING • The NO valve (normally open) must be connected to wire (OFF) and to wire (N) to obtain that it closes in cooling mode. • The NC valve (normally closed) must be connected to wire (ON) and to wire (N) to obtain that it closes in cooling mode. •... -
Page 35: Other Auxiliary Heat Sources
Other auxiliary heat sources The appliance allows the connection of an auxiliary thermal unit, which can be controlled so that the main board delivers 230 V when the outside temperature is lower than the set value for activating the auxiliary heat source. Note: It is NOT possible to install an auxiliary thermal unit together with an optional electric heater. -
Page 36: Door Control Unit
Door control unit If a door control function is available, install as follows: Door control unit Refrigerant filling and draining 1. The outdoor unit is filled with refrigerant by the manufacturer before shipment. Refrigerant may be topped up when connecting the piping on site. -
Page 37: Collecting Refrigerant
Collecting refrigerant To transfer or dispose of the outdoor/indoor units, drain the system according to the procedure below, so that the refrigerant is not released into the atmosphere. 1. Switch power supply off (circuit breaker). 2. Connect the low pressure valve on the pressure gauge manifold to the filler plug (low pressure side) of the outdoor unit. 3. -
Page 38: Installing A Sealed Storage Tank
• If the connecting pipe is disconnected when compressor is still operating, air may enter the system. In this case, system pressure would increase and compressor would get damaged. • When installing the unit, make sure that the connecting pipe is properly installed before starting the compressor. •... -
Page 39: Connection Of The Hydraulic System
Note • For water safe use, it is recommended to connect the storage tank outlet and/or inlet using a certain PPR pipe length, L ≥70×R2 (in cm, where R is pipe inside radius). Moreover, to preserve heat, metal pipes should be avoided. Upon first use, fill the storage tank before switching the unit on. - Page 40 19.3.2 Power cable and residual current circuit breaker specifications The table below gives all recommended specifications for power cables and residual current circuit breakers. Model Power Residual current cir- Min.cross-section of Min.cross-section of supply cuit breaker ground cable power cable V, Ph, Hz PROCIDA AWS 4 (O) outdoor unit...
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Page 41: Wiring Diagram
Wiring diagram 20.1 Control board (Indoor unit) PROCIDA IWU 4, PROCIDA IWU 6 Code Description AC-L Phase wire of power cable Neutral wire of power cable Ground Storage tank electric heater Electric heater 1 Electric heater 2 Other 220VAC temperature sensor Reserved Reserved Reserved... - Page 42 Code Description CN16 Temperature sensor 10 K (outlet water for optional electric heater) CN16 Reserved CN10 Storage tank temperature sensor Remote ambient temperature sensor Reserved Reserved Reserved CN20 Thermostat CN21 Detection of welding protection for optional electric heater 1 CN22 Detection of welding protection for optional electric heater 2 CN23 Detection of welding protection for storage tank electric heater...
- Page 43 Code Description 2WAY Reserved 4WAY 4-way valve coil OFAN DC motor LPS-C Low pressure switch for cooling LPS-H Low pressure switch for heating High pressure switch High pressure sensor Electronic expansion valve - coil 1 Electronic expansion valve - coil 2 T_SENSOR1 1, 2: discharge;...
- Page 44 Code Description Reserved Reserved Reserved Reserved 3-way valve signal CN30 Built-in water pump signal (PWM) CN31 Aux. water pump signal (PWM) - provided on site CN18 Temperature sensor 20 K (inlet water) CN19 Temperature sensor 20 K (outlet water) CN15 Temperature sensor 20 K (refrigerant liquid line) CN15 Temperature sensor 20 K (outlet water)
- Page 45 PROCIDA AWS 8 (O), PROCIDA AWS 10 (O) (Outdoor unit board-Communication) Code Description AC-L Phase wire of power cable Neutral wire of power cable PWR1 Reserved Fuse 4-way valve VA-1 Chassis electric heater HEAT Electric heater DC-MOTORO Reserved DC-MOTORO1 Fan motor EXV 1 EXV 2 T_SENSOR2...
- Page 46 PROCIDA AWS 8 (O), PROCIDA AWS 10 (O) (Outdoor unit board-Power) Outdoor unit Code Description AC-L Phase line input Neutral line input L-OUT Phase line output N-OUT Neutral line output COMM Communication To compressor phase U To compressor phase V To compressor phase W Wiring diagram...
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Page 47: Electrical Connections
20.2 Electrical connections 20.2.1 Connecting principle Refer to section Connecting principle on page 20.2.2 Wiring diagram Wiring diagram: indoor unit (always check the wiring diagram applied to the product) PROCIDA IWU 4, PROCIDA IWU 6, PROCIDA IWU 8, PROCIDA IWU 10 Layout of electrical components Wiring diagram... - Page 48 CODE DESCRIPTION Main board - only for RT6 Indoor unit main board Interface communication board Optional electric heater 1 Optional electric heater 2 Thermostat 1 Thermostat 2 AC contactor 1 Optional electric heater AC contactor 2 Optional electric heater Storage tank electric heater AC contactor PUMP Indoor unit pump Unit water inlet T sensor...
- Page 49 Wiring diagram: outdoor unit PROCIDA AWS 4 (O), PROCIDA AWS 6 (O) Layout of electrical components The ground wire is available for motor having an iron housing, while it is not available for motor having a plastic housing Wiring diagram...
- Page 50 CODE DESCRIPTION Indoor unit main board Outdoor unit main board Communication interface board COMP1 Compressor Compressor band heater Bottom band heater EKV1 Main electronic expansion valve coil EKV2 Aux. electronic expansion valve coil High pressure switch L1-L6 Magnetic ring Low pressure switch for heating Low pressure switch for cooling DC motor Economizer inlet T sensor...
- Page 51 PROCIDA AWS 8 (O), PROCIDA AWS 10 (O) Layout of electrical components The ground wire is available for motor having an iron housing, while it is not available for motor having a plastic housing Wiring diagram...
- Page 52 CODE DESCRIPTION Indoor unit main board Outdoor unit main board Drive board Communication interface board Filter board COMP1 Compressor Compressor band heater Bottom band heater EKV1 Main electronic expansion valve coil EKV2 Aux. electronic expansion valve coil High pressure switch L1-L5 Magnetic ring Low pressure switch for heating...
- Page 53 Connection between indoor unit and outdoor unit (communication cable and storage tank sensor present among accesso- ries) Indoor unit board CN10 (mod.4 and 6) - CN8 (models 8 and 10) - Storage tank temperature sensor CN3-Communication with outdoor unit (from CN12) Outdoor unit communication board CN12-Communication with outdoor unit (from CN3) Wiring diagram...
- Page 54 20.2.3 Terminal board PROCIDA IWU 4, PROCIDA IWU 6, PROCIDA IWU 8, PROCIDA IWU 10 XT2 terminal board 2-way valve - 1 Aux. thermal unit XT1 terminal board XT3 terminal board Thermostat Storage tank aux.heating element Electric power supply Door control unit Pump control signal (OUT) Wiring diagram...
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Page 55: Commissioning
Commissioning 21.1 Checks before start-up To ensure safety for users and the unit, the system must undergo a functional inspection before testing. The required procedures are described here below: The following inspections must be carried out by qualified service technicians. Together with the sales technician, dealer, installer and customer, check whether the operations below have already been per- formed or still have to be performed. -
Page 56: Operation Test
21.2 Operation test The operation test is preliminarily performed to make sure that the unit can operate normally. If the unit can not operate normally, identify and rectify the problems so as to obtain a satisfying test result. Before starting the operation test, ensure that all test items gave the required results. -
Page 57: Operation And Routine Maintenance
This is why, after installing the storage tank, it is recommended to set it to "With”. In case of failure to comply, Fondital shall not be liable for any malfunction. • Do not switch the unit on and off too frequently and close the manual valve of the hydraulic system when the unit is used by the users. - Page 58 Malfunctions Causes Possible solutions Drain or top up refrigerant. Insufficient or excessive quantity of refrig- The hydraulic system is either clogged or erant. contains some air. The compressor frequently starts or stops Faulty flow in the hydraulic system. Check water pump, valves and piping. Insufficient level.
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Page 59: Recovery
22.1 Recovery When draining refrigerant from a system for maintenance or disposal purposes, it is recommended to remove the refrigerant in safety conditions. If refrigerant is transferred to cylinders, only use cylinders suitable for recovering refrigerant. Make sure to have a suitable number of cylinders to store all system refrigerant. -
Page 60: Safety Notes
22.3 Safety notes Check for the presence of refrigerant: the technician must inspect the area using a suitable refrigerant detector, before and while servicing, so as to be aware of the presence of a potentially toxic or flammable environment. Make sure that the leak detector used is suitable for all refrigerants that may be used, i.e. -
Page 61: Precautions Before Seasonal Use
REGULATION (EU) No. 517/2014 - F-GAS The unit contains R32, a fluorinated greenhouse gas having a global warming potential (GWP) = 675. Do not release R32 into the environment. Model PROCIDA AWS X4 1 kg = 0.675 tons of CO equivalent PROCIDA AWS X6 1 kg = 0.675 tons of CO... - Page 62 Page left intentionally blank...
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- Page 64 Fax +39 0365 878 304 e-mail: info@fondital.it www.fondital.com The manufacturer reserves the right to modify his/her products as deemed necessary, without alter- ing the basic characteristics of the products themselves. Uff. Pubblicità Fondital IST 03 J 048 - 02 | Febbraio 2023 (02/2023)
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