Description
Introduction
The all DC inverter V4 Plus heat recovery series, which can offers simultaneous cooling and heating operation in one system. The energy by-product from cooling or heating is transferred to where it is required by using the balanced heat exchanger function, which saves up to 50% in costs compared with a conventional heat pump system.

HP | 8 | 10 | 12 | ||
Model MDV- | 252(8)W/D2RN1T(C) | 280(10)W/D2RN1T(C) | 335(12)W/D2RN1T(C) | ||
Power supply | V/Ph/Hz | 380-415/3/50 | |||
Cooling | Capacity | kW | 25.2 | 28 | 33.5 |
Power input | kW | 5.73 | 6.67 | 8.07 | |
EER | 4.4 | 4.2 | 4.15 | ||
Heating | Capacity | kW | 27 | 31.5 | 37.5 |
Power input | kW | 6 | 7.33 | 8.72 | |
COP | 4.5 | 4.3 | 4.3 | ||
Connectable indoor unit |
Total capacity | 50~130% of outdoor unit capacity | |||
Max. quantity | 13 | 16 | 20 | ||
Compressor | Type | DC inverter | |||
Quantity | 1 | 1 | 1 | ||
Fan motor | Type | DC motor | |||
Quantity | 2 | 2 | 2 | ||
Max Static Pressure | Pa | 20 (default) | |||
Pa | 60 (customized) | ||||
Refrigerant | Type | R410A | |||
Factory charging | kg | 10 | 10 | 10 | |
Pipe connections |
Liquid pipe | mm | Φ9.53 | Φ12.7 | Φ12.7 |
Low pressure gas pipe | mm | Φ22.2 | Φ22.2 | Φ25.4 | |
High pressure gas pipe | mm | Φ19.1 | Φ19.1 | Φ19.1 | |
High pressure gas balance pipe | mm | Φ19.1 | Φ19.1 | Φ19.1 | |
Oil balance pipe | mm | Φ6 | Φ6 | Φ6 | |
Air flow rate | m3/h | 12000 | 12000 | 13000 | |
Sound pressure level | dB(A) | 57 | 57 | 58 | |
Net dimension (W×H×D) | mm | 1250×1615×765 | |||
Packing size (W×H×D) | mm | 1305×1790×820 | |||
Net weight | kg | 255 | 255 | 255 | |
Gross weight | kg | 273 | 273 | 273 | |
Operating temperature range | °C | Cooling: -5~48; Heating: -20~24; Simultaneous Cooling and Heating: -5~24 |
Notes:
Capacities are based on the following conditions:
Cooling: Indoor temperature 27oC DB/19oC WB; Outdoor temperature 35oC DB/24oC WB.
Heating: Indoor temperature 20oC DB/15oC WB; Outdoor temperature 7oC DB/6oC WB.
Piping length: Interconnecting piping length is 7.5m, level difference is zero.
Connection piping diameter is based on the condition that the total equivalent liquid length is less than 90m. When the total equivalent liquid length is more than 90m, please refer to technical manual to choose the connection piping diameter.
Sound values are measured in a semi-anechoic room, at a position 1m in front of the unit and 1.3m above the floor.
HP | 14 | 16 | ||
Model MDV- | 400(14)W/D2RN1T(C) | 450(16)W/D2RN1T(C) | ||
Power supply | V/Ph/Hz | 380-415/3/50 | ||
Cooling | Capacity | kW | 40 | 45 |
Power input | kW | 11.3 | 13.24 | |
EER | 3.54 | 3.4 | ||
Heating | Capacity | kW | 45 | 50 |
Power input | kW | 11.19 | 12.79 | |
COP | 4.02 | 3.91 | ||
Connectable indoor unit |
Total capacity | 50~130% of outdoor unit capacity | ||
Max. quantity | 23 | 26 | ||
Compressor | Type | DC inverter | ||
Quantity | 2 | 2 | ||
Fan motor | Type | DC motor | ||
Quantity | 2 | 2 | ||
Max Static Pressure | Pa | 20 (default) | ||
Pa | 40 (customized) | |||
Refrigerant | Type | R410A | ||
Factory charging | kg | 13 | 13 | |
Pipe connections |
Liquid pipe | mm | Φ15.9 | Φ15.9 |
Low pressure gas pipe | mm | Φ28.6 | Φ28.6 | |
High pressure gas pipe | mm | Φ22.2 | Φ22.2 | |
High pressure gas balance pipe | mm | Φ19.1 | Φ19.1 | |
Oil balance pipe | mm | Φ6 | Φ6 | |
Air flow rate | m3/h | 15000 | 15000 | |
Sound pressure level | dB(A) | 60 | 60 | |
Net dimension (W×H×D) | mm | 1250×1615×765 | ||
Packing size (W×H×D) | mm | 1305×1790×820 | ||
Net weight | kg | 303 | 303 | |
Gross weight | kg | 322 | 322 | |
Operating temperature range | °C | Cooling: -5~48; Heating: -20~24; Simultaneous Cooling and Heating: -5~24 |
Notes:
Capacities are based on the following conditions:
Cooling: Indoor temperature 27oC DB/19oC WB; Outdoor temperature 35oC DB/24oC WB.
Heating: Indoor temperature 20oC DB/15oC WB; Outdoor temperature 7oC DB/6oC WB.
Piping length: Interconnecting piping length is 7.5m, level difference is zero.
Connection piping diameter is based on the condition that the total equivalent liquid length is less than 90m. When the total equivalent liquid length is more than 90m, please refer to technical manual to choose the connection piping diameter.
Sound values are measured in a semi-anechoic room, at a position 1m in front of the unit and 1.3m above the floor.
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