"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 website at any time. In case of any dispute, the original language manual will be the trusted one" INDEX PURPOSE AND CONTENT OF THE MANUAL ........................
Page 3
16.2 MODELS HP_OWER ON 120 ............................36 16.3 MODELS HP_OWER ONE 140-160 ........................... 37 16.4 ACCESS PROCEDURE TO THE INTERNAL PARTS OF THE UNIT ................38 16.4.1 Mod. HP_OWER ONE 70-90 ............................38 16.4.2 Mod. HP_OWER ONE 120 ............................38 16.4.3 Mod.
The manual of HP_OWER ONE units collects all the necessary information for the better use of the equipment under safety conditions for the operator thus meeting the requirements listed in the 2006/42/CE Equipment Directive and following amendments. 1 PURPOSE AND CONTENT OF THE MANUAL This manual provides basic information as for the installation, the operation and the maintenance of heat pumps .
3 PERMITTED USES • The company excludes any contractual and extra contractual liabilities for damages caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.
For any intervention on the heat pump: Wear appropriate Personal Protective Equipment (PPE) specifically, gloves and goggles. Ensure that the workplace is well ventilated. Do not work in closed rooms or ditches with weak air circulation. Do not work on the refrigerant near open flames or near hot parts. Avoid any refrigerant leakage into the environment and pay particular attention to leakage from pipes and/or fittings after evacuating the refrigerant circuit.
4.4 REFRIGERANT SAFETY DATA SHEET Name: R410A (50% Difluoromethane (R32); 50% Pentafluoroethane (R125). RISKS INDICATIONS Major risks: Asphyxia Specific risks: The rapid evaporation may cause freezing. FIRST AID General information: Never give anything by mouth to an unconscious person. Inhalation: Move to fresh air.
5 INSTALLATION WARNING: All the operation described in next chapters MUST BE DONE BY TRAINED PEOPLE ONLY. Before any operation on the unit, be sure that the electric supply is disconnected. Be sure also, using suitable obstructions, that can avoid accidental power supply switching ON until the end of all operations. 5.1 GENERALITY When installing or servicing the unit, it is necessary to strictly follow the rules listed in this manual, to conform to all the specifications of the labels on the unit, and to take any possible precautions.
V4 14 e 14T HP_OWER 1500 ONE 140 V4 16 e 16T HP_OWER 1500 ONE 160 CAUTION: It is obligatory to install the unit on a firm and appropriate basement to support its weight. Considering the weight of the unit, possible vibrations and resultant noise, we do not recommend suspension installion of the unit;...
Iron (Fe) < 0,3 ppm Alkalinity (HCO3) 70 – 300 ppm Chloride ions (Cl-) < 50 ppm sulfate ions (SO4) < 50 ppm Sulfide ion (S) None Ammonium ions (NH4) None Silica (SiO2) < 30 ppm 5.4.2 Drainage connection All the units of series have been designed to use their own base as a drain pan; a plastic pipe fitting is standard provided to be installed onto the lower part of the unit in the special housing enabling the connection of a drainage pipe.
(for easier operation, it is recommended to install externally two draining valves, on the water inlet and on the water outlet, between the unit and the manual gate valves). 5.4.5 Hydraulic circuit Models: HP_OWER ONE 70-90 Models: HP_OWER ONE 120 HP_OWER ONE 140-160 Plate heat exchanger Expansion vessel...
5.6 REFRIGERANT DIAGRAM OF HP_OWER ONE 120 COMPRESSOR Pr Pr COMPRESSOR LIQUID SEPARATOR OIL SEPARATOR COMPRESSOR INLET TEMPERATURE COMPRESSOR OUTLET TEMPERATURE HIGH PRESSURE TRANSDUCER HIGH PRESSURE FLOW SWITCH LOW PRESSURE TRANSDUCER INVERTING CYCLE VALVE LIQUID RECEIVER ELECTRONIC EXPANSION VALVE FILTER AXIAL FAN OUTDOOR AIR TEMPERATURE CIRCULATOR ON BOARD UNIT...
WARNING: The remote control panel cannot be installed in areas with strong vibrations, corrosive gases, and excess of dirtiness or high humidity levels. Leave free the area near the cooling openings. 5.8.1 Wiring terminal block Electrical wiring have to be done only by qualified personnel. The electrical connections have to be realized by qualified personnel.
1. Remove the screws connecting the top plate. Two for each side of the unit and other two crews connecting the top plate with the hole-cable plate holder. (For the small sizes, there is only one fixing screw in the controller’s lateral part of the unit) 2.
• if required by the service center, turn off the unit immediately without resetting the alarm; • Ask the use of original spare parts. 8 SHUTDOWNS FOR LONG PERIODS The types of shutdown depends on the weather of the site where the unit is installed and on the period of the stop. The antifreeze system, if it’s installed, stay on work also with the on-board control unit in “OFF”...
Clean the finned coil by means of compressed. Check out that all the terminals on the electric board as well as on the terminals of the compressor are properly fixed. Tightening of water connections. Check out the tightening and the balancing of the fan blades. Correct voltage.
The user is responsible of the proper disposal of this product, according to national regulations in the country of destination of the appliance. For more information you should contact the installation company or local competent authority. An incorrect decommissioning of the appliance may create serious environmental damage and endanger people’s safety.
WARNING: The minimum temperature allowed for storing the unit is 5°C. 12 PRODUCT FICHE (U.E.811/2013) PRODUCT FICHE - HP_OWER ONE MODELS Product fiche for low-temperature application (35°C) Supplier's name UNICAL A.G. S.p.A. Model HP_OWER ONE 70 HP_OWER ONE 90 HP_OWER ONE 120...
Page 20
Technical parameters for heat pump space heaters Model HP_OWER ONE 70 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for low-temperature application 35°C Parameters shall be declared for average climate condition Item Symbol...
Page 21
Technical parameters for heat pump space heaters Model HP_OWER ONE 90 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for low-temperature application 35°C Parameters shall be declared for average climate condition Item Symbol...
Page 22
Technical parameters for heat pump space heaters Model HP_OWER ONE 120 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for low-temperature application 35°C Parameters shall be declared for average climate condition Item Symbol...
Page 23
Technical parameters for heat pump space heaters Model HP_OWER ONE 140 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for low-temperature application 35°C Parameters shall be declared for average climate condition Item Symbol...
Page 24
Technical parameters for heat pump space heaters Model HP_OWER ONE 160 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for low-temperature application 35°C Parameters shall be declared for average climate condition Item Symbol...
Page 25
PRODUCT FICHE - HP_OWER ONE MODELS Product fiche for medium-temperature application (55°C) Supplier's name UNICAL A.G. S.p.A. Model HP_OWER ONE 70 HP_OWER ONE 90 HP_OWER ONE 120 HP_OWER ONE 140 HP_OWER ONE 160 Seasonal space heating energy efficiency class 5 kW...
Page 26
Technical parameters for heat pump space heaters Model HP_OWER ONE 70 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for medium-temperature application 55°C Parameters shall be declared for average climate condition Item Symbol...
Page 27
Technical parameters for heat pump space heaters Model HP_OWER ONE 90 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for medium-temperature application 55°C Parameters shall be declared for average climate condition Item Symbol...
Page 28
Technical parameters for heat pump space heaters Model HP_OWER ONE 120 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for medium-temperature application 55°C Parameters shall be declared for average climate condition Item Symbol...
Page 29
Technical parameters for heat pump space heaters Model HP_OWER ONE 140 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for medium-temperature application 55°C Parameters shall be declared for average climate condition Item Symbol...
Page 30
Technical parameters for heat pump space heaters Model HP_OWER ONE 160 Air-to-water heat pump Sì Water-to-water heat pump Brine-to-water heat pump Low-temperature heat pump Low Equipped with a supplementary heater Heat pump combination heater Parameters shall be declared for medium-temperature application 55°C Parameters shall be declared for average climate condition Item Symbol...
12.1 ELECTRIC DATA OF THE UNIT AND AUXILIARIES Power supply of the unit V/~/Hz 230/1/50*-400/3/50** Remote control circuit V/~/Hz 12/1/50 Control board circuit V/~/Hz 12/1/50 Fans power supply V/~/Hz 230/1/50 For the 70, 90, 120, 140 models * - For the 160 model**. Note: Electric data may change for updating.
14 OPERATION LIMITS 14.1 EVAPORATOR WATER FLOW RATE The nominal water flow rate is referred to a ∆T equal to 5°C, between the evaporator’s inlet and outlet temperatures. The allowed maximum flow rate is corresponding to ∆T=3°C; higher values may cause too high pressure drops. The allowed minimum water flow rate is corresponding to ∆T=8°C (except for the HP_OWER ONE 70 model for which a maximum temperature difference of ∆T=6,25°C is allowed...
Page 35
Below the operation limits are graphed, in the case of air conditioning and sanitary hot water production. WATER CHILLER/HEAT PUMP MODES DOMESTIC HOT WATER MODE...
16.4 ACCESS PROCEDURE TO THE INTERNAL PARTS OF THE UNIT 16.4.1 Mod. HP_OWER ONE 70-90 1) Remove the top cover 2) Twist off the screws (number 2; 3; 4) of the user interface cover plate and the screw (1) from the side panel for separating the side panel from the front panel (Detail A).
16.4.3 Mod. HP_OWER ONE 140-160 1) Remove the cover twisting off the screws (number 1; 2; 3; 4; 5; 6; 7; 8;9). 2) Twist off the screws (number 10; 11) of the front panel and then push the panel downward to remove the interlocking tab (Detail A);...
Page 44
- export@unical-ag.com - www.unical.eu Unical will not be held responsible for possible inaccuracies if due to transcription or printing errors. It also reserves the right to modify its products as deemed necessary or useful, without jeopardising their essential features.
Need help?
Do you have a question about the HP OWER ONE 70 and is the answer not in the manual?
Questions and answers