Jinan Amrta Air Conditioning Co.,Ltd
Home Product Rooftop Packaged Unit with Hot Water Coil

Rooftop Packaged Unit with Hot Water Coil

Available in: Cooling, Heating

Capacity: 10kW~190kW

Refrigerant: R410A/R134A/R407C

Application: Office Building, Retail, Restaurant, Shopping Mall, Warehouse

Electric heater
The electric heater comprises of shielded resistance heaters, which are smooth stainless steel tubes 6 W/cm2 capacity. High temperature limit control offers overload protection and is set to 90°C and located at less than 150mm after electric heaters. This is provided as a standard feature on the electric heater, with the electric power supply cables made of reticulated silicon rubber, resistant to temperatures up to 200°C. For any rooftop unit size, three sizes of electric heater are available, S (standard), M (Medium) and H (high).

 

Hot water coil
Hot water coils offer fully modulating control through the use of a 3 way valve. The hot water coil, connections and valves are all tested at pressure of 15 bars. Frost protection is provided by forcing the opening the 3 way valve when supply temperature from hot water coil falls below 8°C and by stopping the outdoor fan when that supply temperature falls below 6°C. In addition to that, the 3 way valve is also opened at 10% value if the outdoor temperature falls below an adjustable value.
Hot water coils are always factory fitted, wired and fully tested, prior to shipment.

 

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

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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