Climaveneta Technical Bulletin i-KI(R)_MTD_0031_201110_EN i-KI MTD / i-KIR MTD 0031 9,55 kW Reverse-cycle or heating only unit with DC inverter-driven compressor, for hot water production up to 60°C and operation at outside air temperatures down to -20°C. Priority domestic hot water production.
i-KI(R) MTD INDEX 1. DESCRIPTION OF THE UNIT 3 2. ELECTRONIC CONTROLLER 5 3. OPERATING CHARACTERISTICS 6 4. ACCESSORIES 11 5. GENERAL TECHNICAL DATA 24 6. OPERATING LIMITS 28 7. ETHYLENE GLYCOL MIXTURE 29 8. FOULING FACTORS 29 10. MINIMUM AND MAXIMUM SYSTEM WATER CONTENT 30 10. SYSTEM PUMP CURVES 31 11. UTILITY WATER CIRCUIT CONNECTION DIAGRAM 31 12. FULL LOAD SOUND LEVEL 32 13. POSITION OF THE WATER CONNECTIONS 32 14. DIMENSIONAL DRAWINGS 33 15.
i-KI(R) MTD 1. DESCRIPTION OF THE UNIT High efficiency range Fans The i-KI heating only and i-KIR reverse-cycle heat pumps feature high seasonal efficiency in both heating and cooling mode, using DC inverter technology to modulate compressor operation and deliver the exact amount of energy based on the actual needs of the building. This excellent result has been achieved by carefully sizing all the components. Special attention has been paid to all heat exchange surfaces and the fans.
i-KI(R) MTD - Domestic hot water storage tank, 300, 500 and 1000 litres with solar heating coil, to be combined with the DOMH2O instant domestic hot water production kit. - DOMH2O15 and DOMH2O24 instant domestic hot water production kit. VERSIONS AVAILABLE i-KI MTD air/water heat pump, heating only, with DC inverter-driven compressors, domestic hot water production, axial-flow fans and hydronic unit.
i-KI(R) MTD 2. ELECTRONIC CONTROLLER The NADISYSTEM electronic controller is based on an innovative and efficient approach to building air-conditioning. Energy is only consumed when necessary and the energy sources are used based on availability, efficiency and cost, giving priority to renewable sources, where available.
i-KI(R) MTD 3. OPERATING CHARACTERISTICS HIGH EFFICIENCY AND REDUCED CONSUMPTION The i-KI and i-KIR reverse-cycle air-to-water heat pump is fitted with DC inverter-driven compressor and EC fan with low energy consumption. Inverter technology continuously controls compressor speed to ensure perfect adaptation to system load, modulating the heating or cooling capacity delivered and consequently reducing power consumption and achieving the highest seasonal coefficients currently available on the market.
i-KI(R) MTD SYSTEM PUMP OPERATION All-electric operation In all-electric operation the heat pump is integrated with an electric heater to meet the entire demand of the building. The electric heater is activated below certain outside temperatures so as to satisfy demand in the building that the heat pump cannot manage on its own.
i-KI(R) MTD SYSTEM MANAGEMENT N. System Configuration The NADISYSTEM control system for residential applications gives high operating flexibility by controlling the secondary circuits, that is, activating zone pumps and valves depending on the room temperature set on the remote keypad, and by controlling mixing valves to ensure the correct water temperature in radiant systems according to the climate conditions set for each circuit.
i-KI(R) MTD N. System Configuration The controller can manage the valves in each individual zone or alternatively pumps, depending on the set temperature. The system decides whether to activate the unit or the most energy efficient resources to meet demand. NadiSystem manages different temperature levels based on the terminal units used. The heat pump directly produces water at the right temperature for the system terminals connected to the high temperature circuits (e.g.
i-KI(R) MTD FROST PROTECTION The frost protection function is active even when the heat pump is OFF. DOMESTIC HOT WATER FROST PROTECTION STORAGE The domestic hot water frost protection function is only active if an auxiliary resource is installed for the domestic hot water storage tank. The additional heater is activated if the water temperature, measured by sensor BT8, is less than +5°C, and is deactivated at +8°C.
i-KI(R) MTD 4. ACCESSORIES The accessories listed below are supplied separately. METAL MESH WATER FILTER This filter MUST be installed on the heat pump return pipe to trap any impurities in the water circuit that may damage the unit’s heat exchanger.
i-KI(R) MTD BT AND PT STORAGE TANKS Storage tanks to be used in heating and cooling systems, to ensure minimum heat pump operating time in all operating conditions and avoid excessive starts and stops. It can also be used to isolate the water circuit from the heat pump and to partially meet energy demand during periods in which the unit is shutdown due to the electricity rate. For indoor installation.
i-KI(R) MTD Dimensions - Model BT35 Technical specifications The storage tanks are made from carbon steel plate welded using the best technology and undergo strict water pressure tests (9 bars, allowing an operating pressure of 6 bars). Being a container of water for heating and cooling, this product does not require internal treatment, while the outside is coated with rustproof paint.
i-KI(R) MTD OUTLET ELECTRIC HEATER The outlet electric heaters are available with power ratings of 3 kW single-phase and 3, 6 and 9 kW three-phase. Used on the system outlet, these guarantee the heating demand of the building at low outside temperatures by supplementing the heating capacity of the heat pump. The electric heaters are deactivated as soon as the heat pump alone can meet heating demand.
i-KI(R) MTD IMMERSION ELECTRIC HEATER The single-phase immersion electric heater can deliver 1 kW, 2k W or 3 kW depending on the electrical connections, and must only be used in immersion, via the water connections provided on the HWC storage cylinders or the BT, TP and TPS storage tanks. The electric heater guarantees Legionella prevention or works to supplement domestic hot water production at low outside temperatures.
i-KI(R) MTD 1”¼ 3-WAY VALVE FOR DOMESTIC HOT WATER PRODUCTION: Dimensions - Valve body S B H The 3-way valve deviates the flow of water to the domestic hot water storage tank when the temperature read by probe BT8 falls below the set point. The servomotor is also fitted with an auxiliary contact. Contact closed when the valve is open and contact open when the valve is closed.
i-KI(R) MTD HWC DOMESTIC HOT WATER CYLINDER Models available HWC300 HWC500 The HWC storage cylinders are made especially for domestic hot water production in combination with heat pumps, thanks to the inside coil with large heat exchange area. The heat pump is connected to the inside coil that heats the domestic hot water contained in the storage tank. Legionella prevention cycles are managed by an electric heater that can be installed in the fitting provided on the flange.
i-KI(R) MTD TPS STORAGE TANKS AND DOMH2O INSTANT DOMESTIC HOT WATER PRODUCTION KIT Storage tank model available TPS300 TPS500 TPS1000 The TPS storage tank is used to store water heated by a heat pump, and allow further supplementary heat from the solar heating coils fitted inside. In addition, tank connections are also available for other sources of heating, for example gas- or wood-fired appliances. Two electric heaters can be installed using the 2” fittings provided.
i-KI(R) MTD The control unit adjusts the speed of the primary circuit pump to maintain the set domestic hot water temperature, adjustable from 30°C to 65°C. If the domestic hot water temperature leaving the heat exchanger reaches Tmax (between 60°C and 75°C) the primary circuit pump is switched off. When the temperature falls below the threshold (Tmax) the pump is started again.
i-KI(R) MTD Storage tank dimensions C D E F G K I litres mm 300 690 550 1470 130 325 425 575 735 1060 1035 1185 635 500 790 650 1755 135 375 685 630 880 1336 1295 1445 780 1000 1050 850 2100 120 410 950 765 1105 1476 1560 1710 950 Volume Di d Htot A Fittings Volume litres 300 500 1000 1 2 1"1/4 1"1/4 1"1/4 2" 2" 2" Dimensions - TPS storage tank B 3 4 inch 1/2" 1”1/4 1/2" 1”1/4 1/2" 1”1/4 5 6 1” 1” 1” 1” 1” 1” L M SR SM Di d 835 325 370 785 980 330 375 870 1150 380 425 1105 5 Fixed coil
i-KI(R) MTD N-EM1 EXPANSION MODULE FOR SYSTEM CONFIGURATION Dimensions - N-EM1 expansion module 300 The NADISYSTEM control system for residential applications gives high operating flexibility, activating zone pumps and valves depending on the set room temperature, and controlling mixing valves to ensure the correct water temperature in radiant systems according to the climate conditions set for each circuit.
i-KI(R) MTD N-CM CASCADE MANAGEMENT KEYPAD The N-CM keypad allows cascaded connection of up to 4 heat pumps to increase capacity delivered in applications with multiple occupied areas, such as hotels, schools, apartment blocks, offices and shopping centres. The units are managed in master-slave mode, with the master unit responsible for processing the information and sending it to the slave units.
i-KI(R) MTD N-RS RS485 SERIAL CARD The N-RS is an optional card for directly interfacing the heat pumps to an RS485 network. The card guarantees opto-isolation of the controller from the RS485 serial network. The maximum baud rate available is 19200 baud. The optional card is fitted in the comb connector on the unit’s board.
i-KI(R) MTD 5.
i-KI(R) MTD i-KIR MTD 0031 HYDRONIC TERMINAL APPLICATION SIZE I-KIR COOLING Cooling capacity Total power input (unit) EER ESEER Heat exchanger water flow Heat exchanger pressure drop I-KIR HEATING Heating capacity Total power input (unit) COP Portata acqua scambiatore Heat exchanger pressure drop COMPRESSORS Numero Number of circuits Type of regulation Minimum capacity steps Type of refrigerant Refrigerant charge Oil charge 0031 (1) kW kW 4,91 1,96 2,51 3,36 0,844 55,7 m /h kPa (2) kW kW kPa 9,00 2,
i-KI(R) MTD i-KI MTD 0031 RADIANT PANEL APPLICATION SIZE I-KI COOLING Cooling capacity Total power input (unit) EER ESEER Heat exchanger water flow Heat exchanger pressure drop I-KI HEATING Heating capacity Total power input (unit) COP Portata acqua scambiatore Heat exchanger pressure drop COMPRESSORS Numero Number of circuits Type of regulation Minimum capacity steps Type of refrigerant Refrigerant charge Oil charge 0031 (1) kW kW - m /h kPa (2) kW kW 9,55 2,31 4,13 1,64 35 m /h kPa N°. 1 N°.
i-KI(R) MTD i-KI MTD 0031 HYDRONIC TERMINAL APPLICATION SIZE I-KI COOLING Cooling capacity Total power input (unit) EER ESEER Heat exchanger water flow Heat exchanger pressure drop I-KI HEATING Heating capacity Total power input (unit) COP Portata acqua scambiatore Heat exchanger pressure drop COMPRESSORS Numero Number of circuits Type of regulation Minimum capacity steps Type of refrigerant Refrigerant charge Oil charge 0031 (1) kW kW - m /h kPa (2) kW kW 9,00 2,87 3,14 1,54 40 m /h kPa N°. 1 N°.
i-KI(R) MTD 6.
i-KI(R) MTD 7. ETHYLENE GLYCOL MIXTURE Ethylene glycol and water mixture, used as a heat-conveying fluid, cause a variation in unit performance. For correct data, use the factors indicated in the following tabel.
i-KI(R) MTD 10. MINIMUM AND MAXIMUM SYSTEM WATER CONTENT Minimum system water content The minimum water content for the system shown in table 1 allows the number of compressor starts and stops to be limited. Tab. 1 Size Minimum water content 0031 26 l Maximum system water content The heat pumps are fitted as standard with an expansion vessel and safety valve.
i-KI(R) MTD 10. SYSTEM PUMP CURVES i-KI 0031 MTD and i-KIR 0031 MTD SYSTEM PUMP CURVE [kPa] 8 7 6 5 4 3 2 1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 [L/min] The pressure head refers to the values at the fittings.
i-KI(R) MTD 12.
i-KI(R) MTD 16. DIMENSIONAL DRAWINGS INSIDE MODULE 275 90 60 109 155 540 486 357 330 Anchoring foot 116 HEAT PUMP 155 881.5 Water outlet 522.5 850 180 110 335 356 Water inlet 15.
i-KI(R)_MTD_0031_201110_EN 2 OUTSIDE 3 T 10 T T F INSIDE INDICATES CLIMAVENETA ACCESSORIES ELECTRICAL CONNECTIONS DOMESTIC COLD WATER DOMESTIC HOT WATER HEAT PUMP RETURN HEAT PUMP OUTLET SAFETY VALVE WITH PIPED DISCHARGE 4 N.C. MEMBRANE EXPANSION VESSEL DRAIN VALVE “Y” FILTER SHUT-OFF VALVE THERMOSTATIC MIXER VENT VALVE MT CALIBRATING VALVE VIBRATION DAMPER JOINT FLOW SWITCH THERMOMETER N.B.: Typical water circuit diagram.
i-KI(R)_MTD_0031_201110_EN 2 OUTSIDE 3 T 10 T T F INSIDE INDICATES CLIMAVENETA ACCESSORIES ELECTRICAL CONNECTIONS HOT WATER RECIRCULATION DOMESTIC COLD WATER DOMESTIC HOT WATER HEAT PUMP RETURN HEAT PUMP OUTLET SAFETY VALVE WITH PIPED DISCHARGE 4 N.C. MEMBRANE EXPANSION VESSEL DRAIN VALVE “Y” FILTER SHUT-OFF VALVE THERMOSTATIC MIXER VENT VALVE MT CALIBRATING VALVE VIBRATION DAMPER JOINT FLOW SWITCH THERMOMETER N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 36 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 37 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 38 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram. 1 T T T F INDICATES CLIMAVENETA ACCESSORIES ELECTRICAL CONNECTIONS DOMESTIC COLD WATER DOMESTIC HOT WATER HEAT PUMP RETURN HEAT PUMP OUTLET SAFETY VALVE WITH PIPED DISCHARGE DRAIN VALVE SHUT-OFF VALVE 2 N.C.
MEMBRANE EXPANSION VESSEL “Y” FILTER 39 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL SHUT-OFF VALVE “Y” FILTER 40 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 41 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram. 1 T T T F INDICATES CLIMAVENETA ACCESSORIES ELECTRICAL CONNECTIONS HOT WATER RECIRCULATION DOMESTIC COLD WATER DOMESTIC HOT WATER HEAT PUMP RETURN HEAT PUMP OUTLET SAFETY VALVE WITH PIPED DISCHARGE VENT VALVE DRAIN VALVE 2 N.C.
MEMBRANE EXPANSION VESSEL SHUT-OFF VALVE “Y” FILTER 42 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram. 1 T T T F INDICATES CLIMAVENETA ACCESSORIES ELECTRICAL CONNECTIONS DOMESTIC COLD WATER DOMESTIC HOT WATER HEAT PUMP RETURN HEAT PUMP OUTLET SAFETY VALVE WITH PIPED DISCHARGE DRAIN VALVE 2 N.C.
MEMBRANE EXPANSION VESSEL “Y” FILTER 43 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 44 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 45 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 46 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 47 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram. 1 T T T F INDICATES CLIMAVENETA ACCESSORIES ELECTRICAL CONNECTIONS HOT WATER RECIRCULATION DOMESTIC COLD WATER DOMESTIC HOT WATER HEAT PUMP RETURN HEAT PUMP OUTLET SAFETY VALVE WITH PIPED DISCHARGE DRAIN VALVE SHUT-OFF VALVE 2 N.C.
MEMBRANE EXPANSION VESSEL “Y” FILTER 48 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
MEMBRANE EXPANSION VESSEL “Y” FILTER 49 i-KI(R)_MTD_0031_201110_EN N.B.: Typical water circuit diagram.
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