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UNICA

Sanitary water heat pump

19

Installation diagram in case of solar water circulation

Note: solar heat exchange coil is present only in UNICA S1 and UNICA S2 units

9.6.5

Connection of an auxiliary heat source

Only for UNICA S2 units, it’s possible to connect a third energy source (for example an external boiler). In this case the installer
must disconnect the electric heater and its thermo cut-out (see the WIRING diagram on Paragraph 19.2) and use the power supply
of the heater to give a consent through an external relay (not provided) to the external heat source or to directly supply an
external dedicated pump. The max available output for OUT2 is 20 A resistive. Alternatively, the installer can foresee an external
selector (electrically connected between the electric heater and the PCB) in order to choose if using the E-heater or the third
energy source (see Paragraph 19.3).

Installation diagram in case of auxiliary heat source

Note: auxiliary heat exchange coil is present only in UNICA S2 units

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Содержание Unica 200

Страница 1: ...Chiller and Heat pumps UNICA 200 300 Standard S1 S2 TECHNICAL INSTALLATION MANUAL Domestic HotWater heat pump with range from 200 to 300 litres ...

Страница 2: ......

Страница 3: ...icial 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 website at any time In case of any dispute the original language manual will be the trusted one 09 10 2017 Adding of the anti legionella cycle specifications and upgrading of the conformity Date Note...

Страница 4: ...CE THE MAGNESIUM STICK 12 8 5 REGULATION THERMOSTAT OF THE ELECTRIC HEATER 12 8 6 SCHEMATIC OVERVIEW OF THE WATER AND GAS CIRCUIT 13 8 7 SCHEMATIC OVERVIEW OF THE GAS CIRCUIT 13 9 INSTALLATION 13 9 1 GENERALITY 13 9 2 SAFETY INSTRUCTIONS 14 9 2 1 Warning 14 9 2 2 Caution 14 9 3 TRANSPORTATION 14 9 3 1 Transport using a forklift 14 9 3 2 Manual transport 15 9 4 REQUIRED SERVICE SPACE 15 9 5 INSTALL...

Страница 5: ... 6 MALFUNCTIONING OF THE UNIT AND ERROR CODES 28 12 MAINTENANCE AND PERIODICAL CONTROLS 29 12 1 ENVIRONMENTAL PROTECTION 30 13 TROUBLESHOOTING 30 14 WHEN THE UNIT GOES OUT OF SERVICE 30 15 DISPOSAL REQUIREMENTS 30 16 TECHNICAL CHARACTERISTICS 31 17 PERFORMANCE 32 18 WORKING LIMITS OF HEAT PUMP 33 19 WIRING DIAGRAM 34 19 1 STANDARD CONNECTION 34 19 2 CONNECTION OF AN AUXILIARY HEAT SOURCE 35 19 3 C...

Страница 6: ...nting or transcription The customer shall store any updated copy of the manual or parts of it delivered by the manufacturer as an attachment to this manual The company is available to give any detailed information about this manual and to give information regarding the use and the maintenance of its own units 1 2 GRAPHIC SYMBOLS USED IN THE MANUAL Indicates operations that can be dangerous for peo...

Страница 7: ...ed a number of directives on workplace s health and safety which include 89 391 CEE 89 686 CEE 2009 104 CE 86 188 CEE and 77 576 CEE directives Every employer shall implement such provisions and ensure that workers respect them Do not tamper with or replace parts of the equipment without the specific consent of the manufacturer The manufacturer shall have no responsibility whatsoever in case of un...

Страница 8: ...l parameters AEL 8 h e 12 h TWA 1000 ml m3 Respiratory protection For rescue and maintenance operation in storage tanks use self contained respirator apparatus The vapors are heavier than air and can cause suffocation by reducing oxygen available for breathing Eyes protection Total safety glasses Protection of hands Rubber gloves Hygiene measures Do not smoke PHYSICAL AND CHEMICAL PROPERTIES Colou...

Страница 9: ... hot water it cools the room and supplies fresh air Compatible with different energy sources the unit can work with a second heat source as solar panels external heat pumps boilers or other different energy sources remark the extra heat source is not provided with Ecological and economical heating the unit is one of the most efficient and economical alternatives to both fossil fuel boilers and hea...

Страница 10: ...lly to the boiler free from fouling and gas water contamination High thickness polyurethane foam PU thermal insulation 42 mm Outer shell made of grey colour RAL 9006 plastic material Acoustically isolated top part plastic cover Highly efficient compressor with the R134a refrigerant High and low gas pressure protections Electrical heater available in the unit as a back up with integrated thermo cut...

Страница 11: ...UNICA Sanitary water heat pump 9 8 OVERVIEW OF THE UNIT 8 1 PARTS AND DESCRIPTIONS ...

Страница 12: ...UNICA 200 UNICA 300 UNICA S1 200 UNICA S1 300 UNICA S2 200 UNICA S2 300 A 1638 1888 1638 1888 1638 1888 B 1124 1374 1124 1374 1124 1374 C 1062 1312 1062 1312 1062 1312 D 262 E 747 982 747 982 747 982 F 932 1182 932 1182 932 1182 G 25 H φ 177 I 706 L φ 654 M 262 N 357 357 O 697 P 792 902 Q 932 1092 ...

Страница 13: ... C φ 12 mm x L 120 mm φ 12 mm x L 120 mm 8 Connection for re circulated water G female G female 9 1200 W auxiliary electric heater with integrated thermostat 1 female 1 female 10 Grounding M6 M6 11 Lower tank temperature T2 φ 12 mm x L 90 mm φ 12 mm x L 90 mm 12 Cold water inlet G 1 female G 1 female 13 Solar water outlet G 1 female G 1 female 14 Auxiliary tank temperature φ 12 mm x L 90 mm 15 Sol...

Страница 14: ...the water out of the tank Remove the old magnesium stick from the tank Replace the new magnesium stick Recharge the water 8 5 REGULATION THERMOSTAT OF THE ELECTRIC HEATER The auxiliary electric heater is equipped with a thermostat for regulation the access to this component takes place by removing the plastic frontal cover Such control allows a variation of temperature between 15 and 75 C each not...

Страница 15: ...ions of the labels on the unit and to take any possible precautions Not observing the rules reported on this manual can create dangerous situations After receiving the unit immediately check its integrity The unit left the factory in perfect condition any eventual damage has to be questioned to the carrier and recorded on the Delivery Note before signing it The company has to be informed within 8 ...

Страница 16: ...leaks if there is a gas leak and gas accumulates in the area surrounding the unit it could cause an explosion Do not clean the unit when the power is ON always shut OFF the power when cleaning or servicing the unit If not it could cause an injury due to the high speed running fan or an electrical shock In case the unit is used without air ejection duct verify that the installation room has got a v...

Страница 17: ...er of the unit cannot withstand stress so it cannot be used for transport ATTENTION the unit can be inclined only on the opposite side of the handle see above drawing in other words only on the left side respect of the control panel The unit is equipped with a handle to make easy the transport The handle is supplied unassembled in case of need it shall be fixed with two M8 screws to the two thread...

Страница 18: ...r normally flowing out from water outlet taps the tank is full Turn off all valves and check all pipes If any leakage please repair If the inlet water pressure is less than 1 5 bar a pressure pump should be installed at the water inlet For ensure the long safety using age of tank at the condition of water supply hydraulic higher than 5 5 bar a reducing valve should be mounted at the water inlet pi...

Страница 19: ...to the system for hot sanitary water circuitation or solar water circuitation it is recommended to install and connect also a flow switch before the pump If not any damage to the pump will not be signalled and the system malfunction could occur Perform the drainage piping work according to the installation instruction If there is a defect in the drainage piping work water could leak from the unit ...

Страница 20: ...circulation loop is required an expansion tank suitably sized to absorbe volume variations installed before the solar system a pressure safety valve 3 bar installed after the solar system an air vent valve with manual gate installed near the safety valve The discharge of the pressure safety valve must be directed to a specific tank for the collection of glicolated water and not to the normal waste...

Страница 21: ...t see the WIRING diagram on Paragraph 19 2 and use the power supply of the heater to give a consent through an external relay not provided to the external heat source or to directly supply an external dedicated pump The max available output for OUT2 is 20 A resistive Alternatively the installer can foresee an external selector electrically connected between the electric heater and the PCB in order...

Страница 22: ...void a hazard Improper movement or repair on the unit could lead to water leakage electrical shock injury or fire The installation height of power supply should be over 1 8m if any water may spatter the unit can be safe from water To access the electrical box 1 remove the plastic cover of the top part 2 remove the metallic cover of the electrical box unscrewing the 4 screws 3 the unit is already p...

Страница 23: ...is component should be used to disconnect the unit from the power supply only for long stoppages or maintenance repairing operations WARNING Do not modify the internal wiring of the unit otherwise the warranty will terminate immediately 11 OPERATION THE UNIT 11 1 USER INTERFACE 11 2 OPERATIONS 1 Power ON When turning ON the power whole icons are displayed on the controller screen for 3 seconds Aft...

Страница 24: ...ing status the hour s and the minute s of the timer ON OFF can be adjusted Check and adjust the set parameters 1 When the unit is OFF or ON not on clock and timer setting status short press button to entry the user parameter checking Select the parameter by pressing or button Press to exit 2 When the unit is OFF not on clock and timer setting status press and buttons together for 2 and insert the ...

Страница 25: ...Press the and buttons to set the exact hour s and press to confirm timer OFF minute icon 88 88 flashes Press the and buttons to set the exact minute s and press to confirm Timer ON and timer OFF icons are displayed near the clock time Press button to cancel the timer settings during the timer ON and timer OFF programming returning in this way to clock time visualization The timer settings are repe...

Страница 26: ... support manual defrosting control 5 Heating The icon indicates that the current operation mode is heating 6 Key lock The icon indicates the key lock function is enabled The keys cannot be operated until this function is disabled 7 Left temperature display The display shows the setting water temperature When checking or adjusting the parameters this section will display the relating parameter numb...

Страница 27: ... is an auto reset protection When tank water temperature goes down the unit can start again Second step protection when the tank water keeps going up and reaches 90 C the manual reset cut off will be active the electrical heater stops unless you manual reset the protector To manual reset the protector remove the frontal plastic cover and press the reset red button on the thermostat 11 4 5 Disinfec...

Страница 28: ...uency of the disinfection cycle according to its own uses The plant designer must keep in mind the legionella risk and should adopt all the measures for prevention and control of water The user is RESPONSIBLE to periodically check the correct operation of the anti legionella cycle and to verify that during the disinfection the setting temperature parameter is put to be 4 and is reached for the dur...

Страница 29: ...0 75 C 65 C Adjustable 3 I E heater delay time 0 90 6 t 5 min Adjustable 4 I Week disinfection temperature TS3 related to upper tank temp T3 60 70 C 70 C Adjustable 5 I High temp disinfection time t2 30 90 min 30 min Adjustable 13 I Disinfection start up time adjusting 0 23 23 Adjustable 14 I Pump usage selection 0 1 2 0 Adjustable 0 disabled 1 sanitary hot water circulation usage 2 solar water ci...

Страница 30: ...s problem 1 P8 appears at 125 C and disappears at 120 C 2 Check and if it s necessary replace the sensor High pressure protection HP Switch E1 6 flashes 1 dark 1 Too high air inlet temp 2 Less water in the tank 3 The electronic expansion valve assembly blocked 4 Too much refrigerant 5 The HP switch damaged 6 The uncompressed gas is in refrigerant system 1 Check if the air inlet temp is over the wo...

Страница 31: ...l flow switch if it is installed x Clean the metallic filters of the hydraulic circuit to keep a good water quality Lack of water and dirty water can damage the unit x Clean the finned coil of the heat exchanger by means of compressed air it s recommended to keep the unit in a place where it is dry and clean and which has good ventilation x Check the correct operation of the electric heater for th...

Страница 32: ...nnected One of the error codes appears consult your local dealer The scheduled timer does work but the programmed actions are executed at the wrong time e g 1 hour too late or too early Check if the clock and the day of the week are set correctly adjust if necessary 14 WHEN THE UNIT GOES OUT OF SERVICE Once the unit is arrived at the end of its life cycle and needs to be removed or replaced the fo...

Страница 33: ... Auxiliary exchanger coil surface m2 0 5 0 8 Solar exchanger coil flow rate m3 h 1 2 1 2 Auxiliary exchanger coil flow rate m3 h 0 5 0 8 Exchanger coil max pressure bar 6 6 Exchanger coil material Pickled S235JR Cold water inlet inch G 1 female Hot water outlet inch G 1 female Solar heat source inlet outlet inch G 1 female G 1 female Auxiliary heat source inlet outlet inch G 1 female Condensed wat...

Страница 34: ...0 55 60 0 35 0 4 0 45 0 5 0 55 0 6 0 65 0 7 0 75 Temperatura accumulo Tank temperature C Consumo elettrico Electrical consumption kW Temperatura aria Air temperature 7 C Temperatura aria Air temperature 15 C Temperatura aria Air temperature 20 C Temperatura aria Air temperature 35 C 10 15 20 25 30 35 40 45 50 55 60 7 6 5 4 3 2 1 0 Temperatura accumulo Tank temperature C Coe ciente di prestazione P...

Страница 35: ...ty devices In each case regarding high temperatures water temperature between 47 and 65 C air temperature between 25 and 43 C if the user sets a temperature that is out of the working envelope the heat pump adapts automatically its water set to the limits indicated in the diagram here below Here below the fixed sets of the pressure switches HP switch OFF 26 bar ON 16 bar LP switch OFF 0 2 bar ON 1...

Страница 36: ...UNICA Sanitary water heat pump 34 19 WIRING DIAGRAM Please refer to the wiring diagram on the electric box 19 1 STANDARD CONNECTION ...

Страница 37: ...UNICA Sanitary water heat pump 35 19 2 CONNECTION OF AN AUXILIARY HEAT SOURCE ...

Страница 38: ...UNICA Sanitary water heat pump 36 19 3 CONNECTION OF AN AUXILIARY HEAT SOURCE BY MEANS OF AN EXTERNAL SWITCH ...

Страница 39: ...UNICA Sanitary water heat pump 37 20 WARRANTY CONDITIONS For warranty conditions and limitations refer to the commercial documentation ...

Страница 40: ...FAG0FA000BZ 00 03 2018 bit ly rdzwebsite ...

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