Summary of Contents for RDZ US FLOOR
- Page 1 Chiller and Heat Pumps US FLOOR / FLOOR-S HP Split Unit Inverter Air to water heat pumps with high COP and HP inverter technology INSTALLATION / TECHNICAL MANUAL...
- Page 3 US FLOOR / FLOOR Minichiller inverter Duo FLOOR/FLOOR-S Internal Unit US 06-09-12-16 External Unit 10-2015 Date Notes Possible wasted electrical or electronic devices/products should not be located together with normal domestic waste, but disposed according to the current WEEE law in compliance with the European Directive 2012/19/UE. Please inform yourself at your local Administration or at your reseller in case...
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Page 4: Table Of Contents
US FLOOR / FLOOR Minichiller inverter Duo INDEX AIM AND CONTENTS OF THIS MANUAL ....................... 6 1.1 HOW TO KEEP THIS MANUAL ........................... 6 1.2 GRAPHIC SYMBOLS ..............................6 SAFETY LAWS ..............................6 PERMITTED USES ..............................6 GENERAL SAFETY GUIDELINES ..........................7 4.1 HEALTH AND SAFETY OF WORKERS.......................... - Page 5 US FLOOR / FLOOR Minichiller inverter Duo 7.5.4 Schema d'esempio RDZ per applicazioni in caldo/freddo con sistemi di ricambio aria/deumidificazione ..21 7.5.5 Schema generico RDZ per applicazioni con SOLARE ..................21 7.6 REFRIGERANT CONNECTIONS ..........................22 7.6.1 Refrigerant diagram for models 06 and 09 ...................... 23 7.6.2 Refrigerant diagram for models 12 and 16 ......................
- Page 6 US FLOOR / FLOOR Minichiller inverter Duo 24.3 H ) ......................43 OT WATER PRODUCTION WINTER OPERATION 24.4 A ............................43 MBIENT AIR TEMPERATURE 25 CORRECTION FACTORS FOR OPERAZIONI WITH GLYCOL ..................44 26 DIMENSIONS ..............................45 26.1 INDOOR UNITS ............................... 45 26.2 OUTDOOR UNITS ..............................
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Page 7: Aim And Contents Of This Manual
US FLOOR / FLOOR Minichiller inverter Duo The US manual contains 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. -
Page 8: General Safety Guidelines
US FLOOR / FLOOR Minichiller inverter Duo 4 GENERAL SAFETY GUIDELINES Before beginning to operate on US units every user has to be perfectly knowledgeable about the functions of the equipment and its controls and has to have read and understood the information listed in this manual. -
Page 9: Refrigerant Safety Data Sheet
US FLOOR / FLOOR Minichiller inverter Duo 4.4 REFRIGERANT SAFETY DATA SHEET Name: R410A (50% Difluoromethane (R32); 50% Pentafluoroethane (R125). RISKS IN DICATIONS Major risks: Asphyxia Specific risks: The rapid evaporation can cause freezing. FIRST AID General informations: Never give anything by mouth to an unconscious person. -
Page 10: General Characteristics
US FLOOR / FLOOR Minichiller inverter Duo 5 GENERAL CHARACTERISTICS 5.1 MODELLI DISPONIBILI • model FLOOR, 1-phase floor standing version, with technical water puffer tank in 190 L for DHW and technical water puffer tank in 40 L for plant side •... -
Page 11: Refrigerant Circuit
US FLOOR / FLOOR Minichiller inverter Duo 6.2 REFRIGERANT CIRCUIT The refrigerant circuit has been manufactured by means of international primary brands components and according to the UNI EN 13134 rule concerning welding procedures. The refrigerant gas used in these units is R410A. The refrigerant circuit includes: Safety... -
Page 12: Hydraulic Circuit
US FLOOR / FLOOR Minichiller inverter Duo CAUTION: The INVERTER control system is able to manage in the plant the minimum water contents up to a value of 18 liters for the 06 model, of 25 liters for the 09 model, of 35 liters for the 12 model, and of 45 liters for the 16 model. -
Page 13: Lifting And Handling
US FLOOR / FLOOR Minichiller inverter Duo 7.2 LIFTING AND HANDLING The handling must be performed by qualified personnel, properly equipped with appropriate equipment regarding the weight and the encumbrance of the unit, in compliance with safety regulations of accident preventing. -
Page 14: Positioning And Minimum Technical Clearances
US FLOOR / FLOOR Minichiller inverter Duo 7.3 POSITIONING AND MINIMUM TECHNICAL CLEARANCES 7.3.1 Indoor unit The installation must allow authorized personnel to operate in the event of maintenance, in an easy manner respecting both the safety distances between the units and other apparatus that the technical spaces (expressed in mm) indicated in the table: MOD. -
Page 15: Hydraulic Connections
US FLOOR / FLOOR Minichiller inverter Duo Positioning on the floor Provide lifting from the floor of the unit: • 20 mm without conveying the condensate drain • 90 ÷ 100 mm to allow the conveying of the condensate drain... -
Page 16: Hydraulic Circuit
US FLOOR / FLOOR Minichiller inverter Duo 7.4.1 Hydraulic circuit Circulator pump Flow switch Flow meter 3 bar relief valve 8 liters expansion vessel Air vent valve filter with metallic mesh of INDOOR UNIT HYDRONIC CIRCUIT (model: MARP/MARPS) 1000µ Temperature sensor... -
Page 17: Connections Positions
US FLOOR / FLOOR Minichiller inverter Duo 7.4.2 Connections positions 7.4.2.1 Indoor unit From the plant (1”M) To the plant (1”M) Water supply inlet (3/4”M) The user DHW-R (3/4”M) Liquid line (see Paragraph 15.3) Gas line (see Paragraph 15.3) From the solar plant (3/4”M) To the solar plant (3/4”M) -
Page 18: Outdoor Unit
US FLOOR / FLOOR Minichiller inverter Duo 7.4.3.2 Outdoor unit All the outdoor units have been designed in a way to use their own basement as a drain pan. • Locate the hole at the basement of the unit between the finned coil and fan, A. -
Page 19: Discharging Of The Plant Circuit
US FLOOR / FLOOR Minichiller inverter Duo During the operations of charging/topping-up, the plugs of the air vent valves must be partially unscrewed to allow air to flow freely out of the valves. The models FLOOR/FLOOR-S are equipped with two air vent valves, one on the other DHW technical side puffer and the other on the puffer of the plant side. -
Page 20: Indicative Diagrams Of The Plant Circuit
US FLOOR / FLOOR Minichiller inverter Duo 7.5 INDICATIVE DIAGRAMS OF THE PLANT CIRCUIT WARNING: The diagrams shown in this paragraph are should be considered only for illustration purpose. The study and the approval of the speci c installation context of the plant is always required by a quali ed heating engineer. -
Page 21: Schematic Diagram Of The Plant With Dhw Recirculation
US FLOOR / FLOOR Minichiller inverter Duo 7.5.2 Schematic diagram of the plant with DHW recirculation Please note that the option of the DHW recirculation is available when the additional plant management module (optional GI2 optional) is present. Filter with extractable... -
Page 22: Schema D'esempio Rdz Per Applicazioni In Caldo/Freddo Con Sistemi Di Ricambio Aria/Deumidificazione
US FLOOR / FLOOR Minichiller inverter Duo 7.5.4 FLOOR Door FLOOR Contents CONTROL UC 300 MHE room sensor controls/signals Wi-SA Regulation Safety drainage From the plant (1”M) To the plant (1”M) Water supply inlet (3/4”M) Outdoor Unit The user DHW-R (3/4”M) Liquid line (see Paragraph 15.3) -
Page 23: Refrigerant Connections
US FLOOR / FLOOR Minichiller inverter Duo REFRIGERANT CONNECTIONS The refrigerant connections are equipped with shut off valves on the outdoor unit and designed for flare connections. How to make the connection: • Place the refrigerant pipes; (place the refrigerant pipes, the number of curves should be as low as possible and avoid throttling of the pipes) •... -
Page 24: Refrigerant Diagram For Models 06 And 09
US FLOOR / FLOOR Minichiller inverter Duo 7.6.1 Refrigerant diagram for models 06 and 09 COMPRESSOR COMPRESSOR LIQUID SEPARATOR COMPRESSOR INLET TEMPERATURE COMPRESSOR OUTLET TEMPERATURE HIGH PRESSURE TRANSDUCER HIGH PRESSURE FLOW SWITCH LOW PRESSURE TRANSDUCER LIQUID SEPARATOR (only for the model 09) -
Page 25: Indoor Unit
US FLOOR / FLOOR Minichiller inverter Duo Avoid direct contact with the pipes Be sure, after about 10 minutes of operation the screws on the power supply terminal block that are well fixed. 7.7.1 Indoor unit • The power supply and signal cables should pass along the space between the metal sheets in the top part of the unit and use the fixing clamps for fastening. -
Page 26: Terminal Block Connections
US FLOOR / FLOOR Minichiller inverter Duo 7.7.1.1 Terminal block connections For getting information on the legend and location of the terminal blocks in the electric box, please see the wiring diagrams in the Chapter 30. Power supply terminal block... -
Page 27: Outdoor Unit
US FLOOR / FLOOR Minichiller inverter Duo Auxiliary power supply terminal block Terminal block Terminals Description Neutral conductor for electric heater Phase conductor for auxiliary devices Phase conductor for auxiliary devices Phase conductor for auxiliary devices Grounding conductor for auxiliary devices... -
Page 28: Wiring Between Indoor And Outdoor Units
US FLOOR / FLOOR Minichiller inverter Duo 7.7.3 Wiring between indoor and outdoor units The indoor unit must be connected to the outdoor unit as shown in the below figure. General electric panel Protection device Protection device 1Ph / 3Ph... -
Page 29: Removal Of The Front-Right Side Panel Of The Outdoor Unit Models 12 And 16
US FLOOR / FLOOR Minichiller inverter Duo 7.7.4 Removal of the front-right side panel of the outdoor unit models 12 and 16 The following illustration shows the procedure for removing the front-right side panel in order to reach the terminal block in the models 12 and 16. -
Page 30: Architettura Del Sistema
US FLOOR / FLOOR Minichiller inverter Duo 8 SYSTEM STRUCTURE The system consists in two units: 1) One outdoor unit: US 06-09-12-16 E versions 2) One indoor unit in WALL - FLOOR - FLOOR-S models: Each unit is equipped with electronic control: a) CB = (Master) integrated controller on the front panel in the indoor unit;... -
Page 31: Layout Quadro Elettrico Dell'unita' Interna
US FLOOR / FLOOR Minichiller inverter Duo 9 SWITCH BOARD LAYOUT IN THE INDOOR UNIT Position Description Transformer 240V/12V-30VA 4-pole contactor coil 230 V 20A *( if DHW heater is present) **( if the system heater is present) Additional board... -
Page 32: Indications For The User
US FLOOR / FLOOR Minichiller inverter Duo • Check that the heating elements of the compressor are powered properly. • Ensure that there are no gas leaks. • Before the start up, check that all shutting panels are positioned and fixed with proper screws. -
Page 33: Environmental Protection
US FLOOR / FLOOR Minichiller inverter Duo Be careful when working near the condensing coils. The aluminum fins are very sharp and can cause serious injuries. After the maintenance operations, close the panels fixing them with screws. It is a good rule to carry out periodic checks in order to verify the proper operation of the unit. -
Page 34: Technical Data
US FLOOR / FLOOR Minichiller inverter Duo 15 TECHNICAL DATA 15.1 PERFORMANCE DATA Model US PERFORMANCE DATA Units Cooling capacity (1) 2,48 - 5,14 - 5,62* 4,44 - 8,33 - 8,93* 4,93 - 11,69 - 12,58* 6,48 - 13,15 - 14,72*... -
Page 35: Indoor Units
US FLOOR / FLOOR Minichiller inverter Duo 15.3 INDOOR UNITS 15.3.1 Models FLOOR/FLOOR-S Model TECHNICAL CHARACTERISTICS Unit FLOOR/FLOOR-S 06-09 FLOOR/FLOOR-S 12-16 Indoor unit coupled with a moto-condensing unit size: 1,00 1,55 2,15 2,44 Water flow (3) m3/h Available head pressure (3) Available head pressure (3) Max. -
Page 36: Electric Data
US FLOOR / FLOOR Minichiller inverter Duo 16 ELECTRIC DATA Power supply of circulator and Power supply of the unit V/~/Hz 230/1/50*-400/3/50** diverting valve V/~/Hz 230/1/50 indoor unit Outdoor unit control board V/~/Hz 12/1/50 Outdoor fans power supply V/~/Hz 230/1/50... -
Page 37: Circulator Pumps Curves
US FLOOR / FLOOR Minichiller inverter Duo 18 CIRCULATOR PUMPS CURVES mod. US 06 E- US 09 E mod. US 12 E- US 16 E 19 READING OF THE INDOOR UNIT MANOMETERS Each indoor unit is equipped with two manometers. -
Page 38: Dhw Instantaneous Preparer
US FLOOR / FLOOR Minichiller inverter Duo 20 DHW INSTANTANEOUS PREPARER Here below are indicated the operating regions of the instantaneous DHW preparer versus the temperature of the primary circuit (DHW temperature of technic side) and the water flow rate of the secondary circuit (DHW withdrawal rate), for different values of the set temperature of domestic hot water (T"_Set_DHW). -
Page 39: Solar Group (Models Floor-S)
US FLOOR / FLOOR Minichiller inverter Duo T”_Set_DHW=50°C 21 SOLAR GROUP (MODELS FLOOR-S) WARNING: It is recommended after doing the lling/topping up/washing to replace the supplied hose connector with the respective plugs. This can minimize the risk of water dripping and boiling glycol. Keep the supplied hose connectors for future operations of topping up and cleaning. -
Page 40: Circulator Curve
US FLOOR / FLOOR Minichiller inverter Duo 21.1 CIRCULATOR CURVE 21.2 CALIBRATION OF THE WATER FLOW BY USING THE FLOW CONTROLLER Thanks to the mounted solar group, you can adjust the desired flow rate in the solar plant by rotating slowly the pin valve of the flow regulator leading the lower end of the float to overlap the reference mark of the graduated scale. -
Page 41: Maintenance Of The Circulator Pump
US FLOOR / FLOOR Minichiller inverter Duo 21.5 MAINTENANCE OF THE CIRCULATOR PUMP For removing and/or working on the circulator pump you don’t need necessarily to evacuate the plant circuit, just stop the fluid to flow from both upstream and downstream sides by closing the ball valve (1) (by rotating the knob clockwise) and closing the flow regulator valve (2) (horizontal calibration pin). -
Page 42: Performance
US FLOOR / FLOOR Minichiller inverter Duo 23 PERFORMANCE US 06 E aria-air 12°C aria-air 7°C aria-air 2°C aria-air -2°C aria-air 45°C aria-air 40°C aria-air 35°C aria-air -7°C aria-air -10°C aria-air -15°C aria-air 30°C aria-air 25°C aria-air 20°C Capacità termica [kW] Capacità... - Page 43 US FLOOR / FLOOR Minichiller inverter Duo US 12 E aria-air 12°C aria-air 7°C aria-air 2°C aria-air -2°C aria-air 45°C aria-air 40°C aria-air 35°C aria-air -7°C aria-air -10°C aria-air -15°C aria-air 30°C aria-air 25°C aria-air 20°C 10,5 11,5 12,5 Capacità frigorifera [kW] Capacità...
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Page 44: Operation Limits
US FLOOR / FLOOR Minichiller inverter Duo 24 OPERATION LIMITS 24.1 Evaporator water flow rate The nominal water flow rate is referred to a temperature differential of ∆T=5°C between inlet and outlet of the evaporator. 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 the one corresponding to ∆T=8°C (except for the model US 06 for which the maximum value of ∆T is 6,25°C. -
Page 45: Correction Factors For Operazioni With Glycol
US FLOOR / FLOOR Minichiller inverter Duo CHILLER/HEAT PUMP MODE DOMESTIC HOT WATER MODE 25 CORRECTION FACTORS FOR OPERAZIONI WITH GLYCOL The following correction factors are to be used only if the indoor unit is installed in any internal area of the building subject to low temperatures and with the judgment of adding a certain quantity of glycol for protecting the hydraulic circuit. -
Page 46: Dimensions
US FLOOR / FLOOR Minichiller inverter Duo 26 DIMENSIONS INDOOR UNITS 26.1 DIMENSIONS (mm) MODEL 06-09-12-16 1789 26.2 OUTDOOR UNITS US 12 - 16 US 06 - 09 SIZE (mm) MODELS US 06 E US 09 E 1402 1024 US 12 E – US 16 E... -
Page 47: Access Procedure To Internal Parts
US FLOOR / FLOOR Minichiller inverter Duo 27 ACCESS PROCEDURE TO INTERNAL PARTS 27.1 INDOOR UNIT 1) Remove the two screws on the top of the unit. 2) To remove the front panel, it is sufficient to lift it and... -
Page 48: Components Of Indoor And Outdoor Units
US FLOOR / FLOOR Minichiller inverter Duo 28 COMPONENTS OF INDOOR AND OUTDOOR UNITS 28.1 Indoor unit model: FLOOR/FLOOR-S MODEL FLOOR Automatic air vent valve for DHW technical side Expansion vessel for DHW technical side Flowmeter DHW - R Circulator DHW - R Automatic air vent for plant side Plate heat exchanger DHW –... - Page 49 US FLOOR / FLOOR Minichiller inverter Duo MODEL FLOOR-S Solar group Solar side circulator Solar plant outlet pipe (label "to the solar plant") Solar plant return pipe (label “from the solar plant”)
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Page 50: Indoor Unit Temperature Sensors
US FLOOR / FLOOR Minichiller inverter Duo 28.2 Indoor unit temperature sensors Model FLOOR Model FLOOR-S Position of temperature sensor Heat exchanger inlet Heat exchanger outlet DHW technical side DHW-R primary circuit inlet DHW-R secondary circuit inlet DHW-R secondary outlet Solar coil 28.3 OUTDOOR UNIT... -
Page 51: Filter Cleaning
US FLOOR / FLOOR Minichiller inverter Duo 29 FILTER CLEANING Close the taps (1) Remove the Y-filter plug (2) with a socket wrench of 27 Remove the metallic mesh filter cartridges (3) and wash it under running water brushing it carefully... -
Page 52: Single-Phase Indoor Unit
US FLOOR / FLOOR Minichiller inverter Duo 30.2 SINGLE-PHASE INDOOR UNIT... -
Page 53: Outdoor Units
US FLOOR / FLOOR Minichiller inverter Duo 30.3 OUTDOOR UNITS 30.3.1 Mod. US 06 - 09... -
Page 54: Mod. Us 12
US FLOOR / FLOOR Minichiller inverter Duo 30.3.2 Mod. US 12... -
Page 55: Mod. Us 16
US FLOOR / FLOOR Minichiller inverter Duo 30.3.3 Mod. US 16 L2 DC+... -
Page 56: Limitation Of Warranty
US FLOOR / FLOOR Minichiller inverter Duo 31 LIMITATION OF WARRANTY This guarantee does not cover breakdowns due to: • damages caused by impacts or accidents during transportation and handling or inappropriate use of the unit • the unit is installed in unsuitable environment and not respecting the minimum conditions of required space •... - Page 60 bit.ly/rdzwebsite...
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