Improvement of indoor air quality is one of the major missions of air conditioner equipment. To introduce the ambient fresh air into the building is an ecological and effective solution which is mandatory to control indoor CO2 level and comfort. Amrta air to air HR system offers a parfait energy recovery solution by absorbing heat from the exhaust air in order to pre-treat the fresh air to achieve at the same time:
● A high performance of the improvement of indoor air quality and comfort.
● A economical operation for remarkable energy saving.
Two types of HR equipment are available according to the project requirement: Plate heat exchanger or Wheel heat exchanger. Although the use of the HR system maybe increase some of energy consumption of fans, but the benefit of energy saving will be certainty greater than that. The test data prove that the performance of heat recovery can be up to 70% for recovery efficiency and 100% for volume of exhaust air.
The HR system is now widely applied in residential, commercial, industrial applications. Practically, applications which demand the higher quality air and fresh air rate are strongly recommended.
Structure
Panels and frame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents.
Direct expansion coils with condensate drain tray.
Hermetic compressor
High efficiency scroll compressor for the whole range, with built-in thermal overload cut-out and crankcase heater, mounted on rubber vibration dampers.
Ripple type acoustic insulation for compressor section, and thermal insulation for coil and fan section, low noise.
Centrifugal fan
Forward curve centrifugal fans for air treatment section and axial fans for condensation section.
Front, side and underside air discharge of the treatment unit.
High external pressure, long air supply distance.
Electric panel
Electric panel consists of breakers and contactors for compressors and fan motors, phase sequence relay and other necessary protection devices for the main components.
Easy operation line controller
Cooling/Heating/Auto
Error indication
Timing on/off
Optional
Economizer with fresh, return air dampers and fresh air hood
Free cooling function for low ambient temperature
Low ambient control device for operation of outdoor units at ambient temperatures from less than 20°C down to -10°C
BMS devices
T3 (Tropical climate)
Roof curb
Metal/aluminum filter
Heat recovery to 100%
Evaporating section: double skin with 50mm polyurethane foam
Optional water heating coil
Metal or plastic mesh on condenser coil
Optional supply/return air configurations
Upgraded plug fan
G4 filter, plate and bag filter
Heat recovery diagram
● Plate heat recovery
Heating mode Recyling mode
Cooling mode
①Fresh air ②Return air ③Supply air ④Exhaust air
● Wheel heat recovery
Heating mode Recyling mode
Cooling mode
①Fresh air ②Return air ③Supply air ④Exhaust air
| Model | Unit | RTU10 | RTU12 | RTU14 | RTU16 | RTU20 | RTU25 | RTU28 | RTU32 | RTU36 | RTU42 |
| Cooling* | |||||||||||
| Cooling capacity* | kW | 10.6 | 12.1 | 14.3 | 16.2 | 21.2 | 24.2 | 28.6 | 32.4 | 36.2 | 41.6 |
| Ton | 3.0 | 3.5 | 4.1 | 4.6 | 6.1 | 6.9 | 8.2 | 9.3 | 10.3 | 11.9 | |
| Nominal current* | A | 7 | 7.7 | 9.3 | 10 | 13.4 | 17.7 | 18.7 | 19.5 | 23.3 | 25.7 |
| Nominal power input* | kW | 3.55 | 4.17 | 4.92 | 5.37 | 6.75 | 8.25 | 9.95 | 10.5 | 12.7 | 13.85 |
| Heating* | |||||||||||
|
Heating capacity* |
kW | 11.3 | 12.8 | 15 | 17.3 | 22.6 | 25.6 | 30.2 | 34.6 | 38 | 44.6 |
| Ton | 3.2 | 3.7 | 4.3 | 4.9 | 6.5 | 7.3 | 8.6 | 9.9 | 10.9 | 12.7 | |
| Nominal current* | A | 6.5 | 7.2 | 8.6 | 9.2 | 12.4 | 14.3 | 17.3 | 18 | 21.3 | 23.7 |
| Nominal power input* | kW | 3.26 | 3.83 | 4.5 | 5 | 6.17 | 7.57 | 9.1 | 9.55 | 11.6 | 12.65 |
| Power supply | 380~415v/3ph/50Hz | ||||||||||
| Refrigerant charge | Kg | 3.2 | 4.2 | 5 | 5.8 | 7.3 | 8.4 | 9.8 | 10.5 | 12 | 13 |
| Compressor | |||||||||||
| Qty | Nr. | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
| Type | Scroll | ||||||||||
| Air treatment section | |||||||||||
| Centrifugal fans number | Nr. | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Drive type | / | Direct drive | Belt drive | ||||||||
| Air flow | m3/h | 1950 | 2400 | 2920 | 3150 | 4250 | 5400 | 5700 | 6300 | 6800 | 7900 |
| External static pressure | Pa | 150 | 150 | 180 | 180 | 150 | 235 | 305 | 290 | 270 | 250 |
| Motor power | kW | 0.5 | 0.5 | 0.7 | 0.7 | 0.7 | 1.1 | 1.5 | 1.5 | 2.2 | 2.2 |
| Condensation section | |||||||||||
| Axial fans number | Nr. | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Air flow | m3/h | 4100 | 4150 | 6100 | 7020 | 8640 | 9430 | 11230 | 12300 | 14200 | 18830 |
| Motor power | kW | 0.25 | 0.37 | 0.37 | 0.55 | 0.45 | 0.55 | 0.75 | 0.75 | 2*0.37 | 2*0.37 |
| Dimensions | |||||||||||
| Length | mm | 1350 | 1350 | 1350 | 1350 | 1820 | 1820 | 1820 | 1820 | 2540 | 2540 |
| Width | mm | 990 | 990 | 990 | 990 | 1400 | 1400 | 1400 | 1400 | 1860 | 1860 |
| Height | mm | 880 | 880 | 880 | 880 | 1100 | 1100 | 1100 | 1100 | 1180 | 1180 |
| Net weight | kg | 240 | 250 | 260 | 260 | 380 | 430 | 480 | 500 | 780 | 800 |
| Sound pressure level ** | dB(A) | 67 | 68 | 70 | 71 | 72 | 70 | 72 | 72 | 72 | 72 |
| Model | Unit | RTU48 | RTU55 | RTU64 | RTU72 | RTU88 | RTU104 | RTU120 | RTU150 | RTU170 | RTU190 |
| Cooling* | |||||||||||
|
Cooling capacity* |
kW | 47.2 | 53.2 | 63.3 | 71.4 | 87.2 | 103.3 | 118.8 | 153.4 | 168.6 | 188.5 |
| Ton | 13.5 | 15.2 | 18.1 | 20.4 | 24.9 | 29.5 | 33.9 | 43.8 | 48.1 | 53.9 | |
| Nominal current* | A | 31.3 | 32.5 | 37 | 45.5 | 53 | 68.7 | 79.7 | 88.5 | 113.8 | 135.3 |
| Nominal power input* | kW | 16.4 | 18.7 | 21.5 | 26.5 | 30.6 | 39.8 | 46 | 55 | 65.8 | 78.3 |
| Heating* | |||||||||||
|
Heating capacity* |
kW | 50.2 | 56.4 | 67 | 75.6 | 93.3 | 110.5 | 126.8 | 164.3 | 182 | 202 |
| Ton | 14.3 | 16.1 | 19.1 | 21.6 | 26.7 | 31.6 | 36.2 | 46.9 | 52 | 57.7 | |
| Nominal current* | A | 29 | 30.3 | 34.3 | 42 | 47.2 | 62.3 | 74.2 | 84.6 | 102.5 | 124.8 |
| Nominal power input* | kW | 15 | 17 | 19 | 24.1 | 27.3 | 36 | 43 | 49 | 59.3 | 72.2 |
| Power supply | 380~415V/3Ph/50Hz | ||||||||||
| Refrigerant charge | Kg | 13.5 | 15.2 | 18.1 | 20.4 | 24.9 | 29.5 | 34 | 43.8 | 48 | 54 |
| Compressor | |||||||||||
| Qty | Nr. | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 |
| Type | Scroll | ||||||||||
| Air treatment section | |||||||||||
| Centrifugal fans number | Nr. | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Drive type | / | Belt drive | |||||||||
| Air flow | m3/h | 9350 | 10450 | 11700 | 14400 | 16600 | 19940 | 22000 | 29000 | 31400 | 34900 |
| External static pressure | Pa | 290 | 280 | 275 | 380 | 345 | 390 | 390 | 360 | 420 | 430 |
| Motor power | kW | 2.2 | 3 | 3 | 4 | 4 | 5.5 | 7.5 | 7.5 | 11 | 15 |
| Condensation section | |||||||||||
| Axial fans number | Nr. | 2 | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 |
| Air flow | m3/h | 19200 | 21420 | 24620 | 28400 | 37500 | 43680 | 49200 | 67500 | 72000 | 84000 |
| Motor power | kW | 2*0.55 | 2*0.55 | 2*0.75 | 2*0.75 | 2*1.1 | 4*0.75 | 4*0.75 | 4*1.1 | 4*1.5 | 4*2.2 |
| Dimensions | |||||||||||
| Length | mm | 2540 | 2540 | 3090 | 3400 | 3400 | 4700 | 4700 | 5200 | 5800 | 5800 |
| Width | mm | 1860 | 1860 | 2200 | 2200 | 2200 | 2240 | 2240 | 2240 | 2240 | 2240 |
| Height | mm | 1180 | 1430 | 1430 | 1590 | 1590 | 1650 | 1650 | 1650 | 1650 | 1650 |
| Net weight | kg | 830 | 850 | 1200 | 1400 | 1500 | 1700 | 1750 | 2300 | 2500 | 2500 |
| Sound pressure level ** | dB(A) | 75 | 73 | 75 | 75 | 75 | 75 | 80 | 80 | 82 | 84 |
* Performance values refer to the following conditions:
Cooling: room air temperature 27.0°C DB RH 50%, ambient air temperature 35°C.
Heating: room air temperature 21.0°C DB, ambient air temperature 7°C DB / 6°C WB.
** Noise level measured by adopting average value in the noise lab with background noise of 25 dB(A), at a distance of 1.5m high fan speed.
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Copyright ©2012 by Jinan Amrta Air Conditioning Co.,Ltd. All rights reserved Technical support: Beijing Xinhulian Technology Co., Ltd.
