origin China
packaging Plywood Package or Plastic Film Wrapped Suitable for sea or air transportation
MOQ: 1
Eco
nomizer and free cooling is one of the most im
portant features of this Commercial Rooftop Packaged Unit as it maximise seasonal efficiency by reducing the use of thermodynamic cooling in mid season.
Thermodynamic cooling can be replac
ed by Free Cooling when outdoor temperature is below the building set point saving up to 15% on annual energy consumption.
Rooftop units are supplied with eco
nomizer and fresh air hood to improve comfort through better fresh air management and allow energy savings with free cooling.
Characteristics
01.Structure. Panels and f
rame are made from galvanized steel protected with polyester powder painting to ensure total resistance to atmospheric agents. Direct expansion coils with co
ndensate drain tray.
02.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.
03.Centrifugal fan. Forward curve centrifugal fans for air treatment section and axial fans for co
ndensation section. Front, side and underside air discharge of the treatment unit.
High external pressure, long air supply distance.
04.Electric panel. Electric panel co
nsists of breakers and co
ntactors for compressors and fan motors, phase sequence relay and other necessary protection devices for the main components.
05.Easy operation line co
ntroller
Cooling/Heating/Auto
Error indication
Timing on/off
06.Optio
nal
Eco
nomizer with fresh, return air dampers and fresh air hood
Free cooling function for low ambient temperature
Low ambient co
ntrol 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
me
tal/aluminum filter
100% heat recovery
Evaporating section: double skin with 50mm polyurethane foam
Optio
nal water heating coil
me
tal or plastic mesh on co
ndenser coil
Optio
nal supply/return air co
nfigurations
Upgraded plug fan
G4 filter, plate and bag filter
Exhaust Air
Gravity exhaust damper
Gravity exhaust damper Installed with eco
nomizer assembly, gravity exhaust damper relief pressure when outside air is being introduced in the system. It is a cheap and smart way to avoid over pressure in a building.
Power exhaust fans
Installed with eco
nomizer assembly, it provides exhaust air pressure relief when high levels of fresh air are being introduced in the system.
Interlocked to run when return air dampers are being closed and supply air blower is in operation. The extraction fans run when outdoor air dampers are at least 50% open (adjustable). It is also overload protected. A gravity exhaust damper is supplied with this option to prevent air from entering the unit during shutdown. The power exhaust fans have been size to exhaust 50% of the nominal air flow of the unit.
Technical Data
Model
RTU45
RTU50
RTU60
RTU75
RTU90
RTU105
Cooling capacity
kW
44.5
50
60
70
90
105
Heating capacity
kW
48.7
54.3
64
75.4
96.2
113.2
Power supply
380V / 3Ph / 50HZA
Cooling power input
kW
17
19.5
22.8
26.7
32.9
39.7
Heating power input
kW
15.6
18
21
24.8
30.4
36.7
Start current
A
168
186
175
199
197
266
Working current in cooling
A
31.7
35.6
39.9
48.3
61
70.6
Working current in heating
A
29.9
33.5
37.5
45.4
57.3
66.3
Throttle methods
Thermal expansion valve
Circuits
2
2
2
2
3
3
Refrigerant
R410A
Compressor
Type
Scroll type 380V / 3Ph / 50HZA
Qty
2
2
2
2
3
3
Co
ndenser side
Co
ndenser
Type
Al+copper tube
Axial fan
Qty
1
1
1
1
2
2
Drive
Direct drive
Motor power
kW
0.25
0.37
0.37
0.55
0.75
0.75
Air flow
m3 /h
4600
7800
7800
9000
12600
12600
Evaporator side
Evaporator
Type
Al+copper tube
Centrifugal fan
Qty
1
1
1
1
1
1
Motor power
kW
3
3
4
4
5.5
5.5
Air flow
m3 /h
7600
8500
10900
12500
16000
19500
Drive
Direct drive
Belt drive
External static pressure(Pa)
250
250
300
300
300
300
Filter
Aluminum f
rame filter G3
Noise level dB(A)
73
73
73
75
74
75
Dimension
L
mm
2268
2268
2298
2298
2878
2878
W
mm
1440
1440
1650
1650
2140
2270
H
mm
1167
1167
1400
1400
1964
1964
Weight
kg
750
770
830
860
1160
1350
* 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 20.0°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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Tags: Energy Recovery Rooftop Packaged Unit,Tropical CE Certificate Rooftop Packaged Unit,Portable Rooftop Packaged Air Conditioning