Free Cooling Rooftop Packaged Air Conditioning Unit with Economizer

• Customization: Available
• Type: Rooftop Packaged Air Conditioner
• Air Tube Material: FRP
• Model NO.: SRT-ST1HA
• Corrosion Durability: Higher
• Operating Voltage: 50Hz or 60Hz
• Noise Level: Low
• Application Fields: Residential & Commercial Field
• Mounting: Suitable for Installation in Rooftop or Ground
• Lifetime: >25 Years
• Certification: ISO, CE, CCC
• Condition: New
• Colour Selection: Dark Grey or White
• Ambient Temp.: T1 or T3 Tropical Climate
• Capacity: 12kw to 392kw
• Refrigerant: R22/R407c/R410A
• Power Supply: 50Hz or 60Hz
• Compressor Type: Scroll
• ODM/OEM: Available
• Function: Cooling Only & Heat Pump
• Panel Selection: Galvanized Steel Coated or Double-Skin
• Economizer/Free Cooling: Optional
• Additional Water Heating Coil & Eh: Optional
• Supply / Return Air Configuration: Optional (Side/Top/Bottom)
• Filter: Optional High Level Filter
• Special Anti-Corrosion: Golden Condenser & Evaporator
• Transport Package: Plastic Film or Plywood Case
• Specification: 3Ton to 110Ton
• Trademark: SENDO or OEM
• Origin: China
• HS Code: 8418
• Production Capacity: 5000 PCS

Product Description

Free Cooling Rooftop Packaged Air Conditioning Unit with Economizer

Company Profile
SENDO is a professional manufacturer of quality air conditioning products.
Sendo could supply most products in HVAC field, such as Rooftop Packaged Unit, Split Commercial Unit, Air Cooled Water Chiller, Water Cooled Water Chiller, Chilled Water Air Handling Unit and Fan Coil Unit etc. Sendo also supplies made-to-measure HVAC solutions. We engineer and manufacture Air Conditioner to suit the building design and application.

Rooftop Packaged Unit

Features

1. Convenient for unit selection

- Colour selection
The color can be ordered (OEM) in either white or grey.

- Wide cooling capacity range
There is a large production line of packaged units, with capacities ranging from 3Ton to 110Ton (12kW to 392kW) at nominal conditions.

- Panels selection
Panels can be constructed of galvanized steel coated (Standard) or Panels are double-skin with injection of high density polyurethane.

- Optional accessories
• Inverter Scroll compressors
• EC Plug-Fans
• Tropical climate T3 condition
• Economizer/Free cooling with return air, fresh air dampers and fresh air hood
• Heat recovery (Plate type heat recovery & Wheel type heat recovery optional)
• Additional water heating coil or electric heater for heating or dehumidification
• Optional supply / return air configuration (Side/Top/Bottom)
• Optional high level filter (G4 panel type filter, F8 bag type filer and H13 HEPA filter etc)
• Optional Golden condenser & evaporator for some area need special anti-corrosion
• Optional precision temperature & humidity control
• 100% Full fresh air
• High external pressure, long air supply distance

2. Outstanding reliability

- Economy
Some models feature the flexibility and economy of 2~4 stages operation. Compressors are progressively switched on only as they are needed. This has the added advantage of lowering start-up current.

- Durable construction
• Standard cabinets are constructed from high grade galvanized steel with polyester powder coated, they are completely weatherized for outdoor installation.
• Coils are manufactured from seamless copper tubes mechanically expanded into hydrophilic aluminum fins, they are tested under 450 Psi at the factory to avoid leakage. They also undergo dry chemical cleaning after manufacturing for optimum system cleanness.
• External fasteners are stainless steel or galvanized type. Corrosion resistant drain trays are also included.
• All units are tested at the factory to make sure no leakage and provide reliable start up.

- Reliable scroll compressor
High efficiency scroll compressor for the whole range, with built-in thermal overload cut-out and crankcase heater.
Famous brand compressor: More reliable.

- Multi-protection design
• Electric panel consists of breakers and contactors for compressors, condenser & evaporator fan motors, phase sequence relay and other necessary protection devices for the main components.
• Main power supply breaker is optional.
 

3. Quieter operation

• Compressors and low noise Supply fan are mounted on rubber vibration dampers.
• Wave type acoustic Insulation for compressor section, thermal insulation for coil and fan section.

4. Easy installation & maintenance

• All units are factory assembled, internally wired, fully charged refrigerant.
• The Rooftops has provisions for forklift and crane lifting. On arrival to the job site they are ready to be lifted to their operating position through the lifting supports available on the units. Only connect the wires of power supply, and no need to connect any signal wires.
• Quick release fasteners or removable the access doors on the compressor, fan motor, filter, and electric box sections, provide convenient access to system components for maintenance and service.
• The unit provides external pressure gauge for convenient and fast checking system pressure without removing the panel.
• If the unit is in running with abnormal operation, the controller will show the error code for easy troubleshooting.
• Standard washable filter, easy to clean.

5. Control system

• The unit is completely factory-wired with necessary controls and terminal block for power wiring.
• Syslab wired controller is supplied with unit controls as standard. The precision control makes all heating, cooling, or ventilating decisions in response to electronic signals from sensors measuring indoor and outdoor temperatures.
• Besides standard Syslab wired controller, Siemens & Carel PLC controller with BMS function and precision temperature & humidity control can be matched as optional solution.

Specifications (BD Series)

Model			SRT-ST1H12A	SRT-ST1H15A	SRT-ST1H20A	SRT-ST1H25A	SRT-ST1H30A	SRT-ST1H35A
Cooling	Capacity	Ton	3.4	4.3	5.0	6.9	8.7	10.2
		kW	12.0	15.2	17.5	24.0	30.3	35.6
	Power Input	kW	4.1	5.3	5.5	8.8	11.3	12.3
	Running Current	A	7.4	9.7	10.2	16.1	21.2	23.3
Heating	Capacity	kW	13.2	16.6	18.4	26.5	33.3	37.7
	Power Input	kW	3.8	4.8	5.1	8.2	10.4	11.3
	Running Current	A	6.9	9.2	9.7	15.1	20.1	22.2
Power Supply			380~415V/3Ph/50Hz
Refrigerant & Charging Quantity		Type	R410a
		Kg	3.1	3.1	4.3	2x3.1	2x3.1	2x4.3
Compressor	Type	/	Scroll
	Brand	/	Copeland	Copeland	Copeland	Copeland	Copeland	Copeland
	Compressor/Circuit	Nos.	1	1	1	2	2	2
	Energy Adjustment	%	0,100%			0,50%,100%
Condenser Section	Condenser	Type	Copper Pipe + Anticorrosion Aluminium Fin
	Condenser Fan	Type	Axial / Direct
		Qty	1	1	1	1	1	1
	Power Input	kW	0.25	0.37	0.37	0.55	0.75	0.75
	Airflow	m3/h	4600	7800	7800	9000	12600	12600
Evaporator Section	Evaporator	Type	Copper Pipe + Anticorrosion Aluminium Fin
	Evaporator Fan	Type	Direct	Direct	Direct	Belt-Driven
	Power Input	kW	0.32	0.37	0.45	1.1	1.5	2.2
	Supply Airflow	m3/h	2100	2600	3400	4100	5200	6300
		CFM	1235	1529	2000	2412	3059	3706
	ESP	Pa	100	100	100	200	200	250
Filter	Standard	Type	G4 Panel Type Filter
Sound Level		dB(A)	67	67	68	71	72	72
Dimension	Length	mm	1498	1498	1498	1978	1978	1978
	Width	mm	1100	1100	1100	1175	1175	1175
	Height	mm	1095	1095	1095	1095	1095	1095
Net Weight		Kg	245	260	290	420	485	500

*** *** *** *** *** *** *** *** ***

Model			SRT-ST1H45A	SRT-ST1H50A	SRT-ST1H60A	SRT-ST1H70A	SRT-ST1H90A	SRT-ST1H100A
Cooling	Capacity	Ton	12.7	14.3	17.1	20.0	25.7	30.0
		kW	44.5	50.0	60.0	70.0	90.0	105.0
	Power Input	kW	17.0	19.5	22.8	26.7	32.9	39.7
	Running Current	A	31.7	35.6	39.9	48.3	61.0	70.6
Heating	Capacity	kW	48.7	54.3	64.0	75.4	96.2	113.2
	Power Input	kW	15.6	18.0	21.0	24.8	30.4	36.7
	Running Current	A	29.9	33.5	37.5	45.4	57.3	66.3
Power Supply			380~415V/3Ph/50Hz
Refrigerant & Charging Quantity		Type	R410a
		Kg	4.3+8.5	4.3+8.5	2x7.5	2x8.5	3x7.5	3x8.5
Compressor	Type	/	Scroll
	Brand	/	Copeland	Copeland	Copeland	Copeland	Copeland	Copeland
	Compressor/Circuit	Nos.	2/2	2/2	2/2	2/2	3/3	3/3
	Energy Adjustment	%	0,50%,100%				0,33%,66%,100%
Condenser Section	Condenser	Type	Copper Pipe + Anticorrosion Aluminium Fin
	Condenser Fan	Type	Axial / Direct
		Qty	1	1	1	1	2	2
	Power Input	kW	1.1	1.5	1.5	2.2	2x1.1	2x1.5
	Airflow	m3/h	16500	21000	21000	27000	2x16500	2x21000
Evaporator Section	Evaporator	Type	Copper Pipe + Anticorrosion Aluminium Fin
	Evaporator Fan	Type	Belt-Driven
	Power Input	kW	3	3	4	4	5.5	5.5
	Supply Airflow	m3/h	7600	8500	10900	12500	16000	19500
		CFM	4471	5000	6412	7353	9412	11471
	ESP	Pa	250	250	300	300	300	300
Filter	Standard	Type	G4 Panel Type Filter
Sound Level		dB(A)	73	73	73	74	74	75
Dimension	Length	mm	2268	2268	2298	2298	2878	2878
	Width	mm	1470	1470	1650	1650	2140	2140
	Height	mm	1167	1167	1400	1400	1964	1964
Net Weight		Kg	750	770	830	860	1150	1350

Workshop


Project Reference


Sendo contribution to combat rising energy costs and global warming is to design innovative, efficient and dependable AC products, while providing best comfort and air quality. We are optimistic about the response that we expect to get from our potential customers because we strive to ensure that our customers get the quality products when they approach us and we are determined to ensure that our customers can obtain various benefits when they buy Sendo Air Conditioners.

Get in touch with us and book a Factory Tour! Sincerely welcome to visit our factory at your convenience.