HVAC Ventilation System Roof Compact Air Handling Unit Ahu

• Customization: Available
• Type: Evaporative Air Cooler
• Air Tube Material: Galvanized Sheet
• Model NO.: D4-012-3X350
• Corrosion Durability: Higher
• Operating Voltage: 380/400 VAC
• Noise Level: Low
• Application Fields: Mechanical Engineering
• Mounting: Floor Standing
• Lifetime: >20 years
• Certification: RoHS, ISO, CE
• Condition: New
• Function: Cooling Heating Ventilate Heat Recovery
• Cooling Capacity: 10kw-300kw
• Heating Capacity: 10kw-300kw
• Refrigerant: R22/R407c/R410A/R134A
• Fan Type: Axial Fan
• Condenser: Copper Tube Aluminum Fin
• Evaporator: Copper Tube Aluminum Fin
• Casing: PU
• Refrigerating Method: Direct Expansion, Chilled Water
• Transport Package: Wrap Film
• Specification: Customized
• Trademark: Venttech
• Origin: Shanghai, China
• HS Code: 8415812090
• Production Capacity: 20000PCS/Month

Product Description

Feature:
1, Complying with above China Standard, which is from standard. ISO9001 and ISO14001 qualified.
2, Choose best materials, main components are from China top brand or imported.
3, The modular casing design, easy interchanging each other. easy install,easy transport,easy maintaince.
4, Unique no-cold-bridge design, improve the insulation and air tightness, total air leak rate ≤2.5%;
5, With dynamic balanced double inlet Centrifugal fan, with good air dynamic features, and accurate working, high efficiency, low vibration, low noise etc.
6, High efficient heat exchanger coil, ensure to provide the enough cooling capacity to the unit. And also high efficient breakwater panel is provided if required, water flow in coil ≤3×10-4kg/kg
7, Strong structure, good looking and permanent color.
8, Reasonable inside structure, with the suitable space for maintenance and cleaning.
9, Casing sheet: Provide double-skin construction constructing Sandwich type comprising 0.5mm thick galvanized internal and external skins and with 30mm thick polystyrene insulation of minimum 45kg/m3 density. Good airproof material is use between the casing and the frame to reduce the rate of the air leak.
The combined air handling untis are modular designed ,each modular can be used independently and can also work together and company with fan coil units to add refresh air. Not only reduce operation costs and energy saving, but also optimize air quality and create a congnitive indoor space to meet the human health requirements.

Technical Data


Air cooled direct expansion type air handling unit

unit characteristics	Model: GT-ZKW-()DX		20	30	40	50	65	80	100
	Cooling capacity	KW	10.1	15.3	20.3	25.5	32.3	38.6	52.0
	Heating capacity	KW	10.3	15.7	20.8	26.1	33.5	39.5	53.2
	Supply air volume	M³/h	2000	3000	4000	5000	6500	8000	10000
	Margin blast pressure	Pa	200	250	300	300	400	400	500
	Power		3N-380V-50Hz
Indoor unit	Blower	Type	High efficient centrifugal fan
		KW	0.55	0.75	1.5	2.2	3.0	3.0	5.5
	Chilled water coil (option)	Type	High efficient copper tube aluminum fin
		Water flow (m³/h)	1.7	2.6	3.5	4.4	5.6	6.6	8.9
		Segment length (mm)	300	300	300	300	300	300	300
	Heater	Type	Stainless steel tubular electric heater/ Steam heat coil/ Hot water heat coil
		KW	6	9	12	18	24	24	30
		segment length (mm)	300	300	300	300	400	400	400
	Humidifier	Type	Electrode type/ Steam/ Electrothermic type/ Wet film
		KW	3	4	5	8	8	12	12
		segment length (mm)	400	400	400	400	400	400	400
	Air filter	Type	Primary filter G4( Middle filter F8 &Nanocrystalline carbon filter)
	Noise	dB(A)	60	60	61	62	63	63	65
	Size	L (mm)	1800	2000	2000	2100	2100	2200	2400
		W (mm)	730	1030	1030	1030	1140	1340	1340
		H (mm)	788	788	1115	1115	1115	1115	1420
	Weight	KG	140	180	320	400	580	660	800
Outdoor unit	Model: GT-WL-		10	15	20	25	35	40	55
	Compressor A	Type	Hermetic Scroll ( Fixed frequency system)
		Quantity	1	1	1	1	1	2	2
	Input power A	KW	3.4	4.8	6.3	8.0	9.8	12.7	16.1
	Compressor B	Type	Hermetic Scroll( Frequency conversion system)
		Quantity	1	1	1	1	1	2	2
	Input power B	KW	3.3	4.6	6.2	7.7	9.7	12.6	15.6
	Refrigerant	Type	R22/R407C/R410A
		Mode	Thermal expansion valve/ Electronic expansion valve
	Noise	dB(A)	63	63	64	64	65	65	76
	Size	L (mm)	850	850	980	980	980	1880	1880
		W (mm)	850	850	980	980	980	980	980
		H (mm)	1080	1080	1080	1080	1234	1080	1080
	Weight	KG	130	135	150	180	220	280	320
	Connection Pipe diameter	liquid pipe(mm)	12.7 (9.52)	12.7 (9.52)	12.7 (12.7)	15.88 (12.7)	15.88 (12.7)	15.88*2 (12.7*2)	15.88*2 (12.7*2)
		gas pipe(mm)	15.88 (12.7)	19.05 (15.88)	19.05 (15.88)	28.6 (22.23)	15.88 (12.7)	22.23*2 (19.05*2)	28.6*2 (22.23*2)

Note:
Cooling condition: indoor dry bulb/wet bulb 27/19 ºC;Outdoor dry bulb/wet bulb 35/24 ºC;
Heating condition: indoor dry bulb/wet bulb 20/- ºC;Outdoor dry bulb/wet bulb 7/6 ºC;
Air volume, pressure, power in the table is standard parameters. It can be separately designed according to customer's requirements;
Chilled water coil as optional parts, according to the customer site requirements configured to double cold source unit;
Heater, humidifier, heat recovery device as optional parts, according to the customer requirements configured to the specific form
Unit standard USES G4 level filters, according to the customer requirements configured to the other forms;
Unit length does not include the function section. Such as heating section humidification secition. Specific details please consult us;
Air cooled split type air conditioning unit without refrigerant leaving the factory, refrigerant models need to indicated in the order;
Noise data is measured 2 m in the front of the unit , 1.2 m high, when cooling under the standard air volume; 
Inside of bracket is R410A refrigerant type connection pipe diameter, the connection copper pipe between the indoor and outdoor unit should within 35 meters.

Chilled water type air handling unit

Model GT-ZKW-			20	40	60	80	100	150	200	250	300
Air volume(m³/h)			2000	4000	6000	8000	10000	15000	20000	25000	30000
Outlet air pressure(pa)			300	300	400	500	500	600	750	750	750
Supply fan capacity(kw)			1.1	1.5	2.2	4	5.5	11	15	15	18.5
Cooling	4 Rows	Return air(kw)	12.2	23.9	35.9	48	60	90	120	150	179
		water flow(m³/h)	2.2	4.2	6.1	8.2	10.5	15.3	20.4	23.8	28.2
		all fresh air(kw)	22	43.8	62	90	112	156	210	265	310
		water flow(m³/h)	3.8	7.7	11	15.5	19.2	27.3	36.5	45.8	55
		pipe diameter (DN)	25	32	40	40	40	50	65	65	80
	6 Rows	Return air(kw)	17	30.1	45.2	60	75	113	151	188	210
		water flow(m³/h)	2.8	5.3	7.7	10.5	13.6	19.2	25.5	30.2	36
		all fresh air(kw)	30.5	58	88	118	150	200	288	355	420
		water flow(m³/h)	5.1	10	15.2	20.2	26.2	35.5	49	70	72.5
		pipe diameter (DN)	32	32	40	40	50	65	65	80	80
	8 Rows	Return air(kw)	18.3	35.2	53	70	90	132	176	220	264
		water flow(m³/h)	3.2	6.2	8.9	12.2	16.2	22.2	30.2	37.2	44.2
		all fresh air(kw)	34.8	70	101	138	178	245	332	410	500
		water flow(m³/h)	5.8	12	17.5	23.5	30.8	42.5	57.1	71	85
		pipe diameter (DN)	32	32	40	40	50	65	65	80	80
Heating	2 Rows	Return air(kw)	20	42	60	84	108	150	200	250	300
		water flow(m³/h)	0.8	1.9	2.6	3.7	4.6	6.5	8.7	11	13
		all fresh air(kw)	18	38	54	70	100	125	180	210	280
		water flow(m³/h)	0.8	1.7	2.4	3.2	4.5	5.5	7.8	10	12
		pipe diameter (DN)	25	32	40	40	40	40	50	50	65
	4 Rows	Return air(kw)	28	56	80	110	140	200	250	320	380
		water flow(m³/h)	1.2	2.4	3.5	4.8	6.3	9	11	13.5	18.2
		all fresh air(kw)	32	62	90	125	150	220	300	380	450
		water flow(m³/h)	1.5	2.7	3.8	5.4	6.8	9.5	13.5	16.2	19.5
		pipe diameter (DN)	32	32	40	40	40	50	50	65	65
Function section outside dimension	Mixing section	Length(mm)	500	500	500	550	600	800	800	800	800
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Pre-filter section	Length(mm)	100	100	100	100	100	100	100	100	100
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Medium efficiency filter section	Length(mm)	500	500	500	500	500	500	500	500	500
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Cooling coil section	Length(mm)	600	600	700	700	700	800	800	1000	1000
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Heating section	Length(mm)	300	300	300	400	400	400	400	400	400
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Humidifying section	Length(mm)	400	400	400	400	400	400	400	400	400
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Fan section	Length(mm)	500	500	900	400	1100	1400	1600	1700	1850
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Current balance section	Length(mm)	400	400	500	900	500	600	600	600	700
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Sound deadening section	Length(mm)	800	800	800	500	800	1000	1000	1000	100
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200
	Air outlet section	Length(mm)	400	400	400	800	500	600	600	800	800
		Width(mm)	950	950	1080	1250	1600	1600	2000	2200	2200
		Height(mm)	980	980	1080	1250	1320	1470	1680	1880	2200

Note:
Cooling condition: supply water/return water 7/12 ºC, indoor dry bulb/wet bulb 27/19ºC , fresh air dry bulb/wet bulb 35/28ºC ;
Heating condition: supply water/return water 60/50ºC, indoor dry bulb/wet bulb 20/-ºC,outdoor air dry bulb/wet bulb 7/6ºC;
Air volume, pressure, power in the table is standard parameters. It can be separately designed according to customer's requirements;
Heater, humidifier, heat recovery device as optional parts, according to the customer requirements configured to the specific form;
Unit standard USES G4 level filters, according to the customer requirements configured to the other forms;
Unit length is decided for the number of function section. Specific details please consult us;

Application
The units are widely used in the air system of many inductries like mechanical ,electronic, textile,medical,chemical,energy and foo inductries ,etc. the units are also ideal solution for restaurants, office buildings,hospitals,theaters,supermarkets and palaestra.

Air handling unit drawing

General comfortable occasion air handling unit
Configuration of basic function, early efficient filter and hot coil in air handling units (choose wet membrane humidification), it has the simple and highly controllable size characteristics of the function.
Suitable for general building room comfort air conditioning process.



Air handling units for all fresh air occasion
Configuration of basic function, primary filter or medium efficiency air filter, cooling coil ( enough margin, meet the needs of extreme conditions), it use steam, hot water heating, or natural gas direct combustion heating section
( high thermal efficiency, low running cost); it also need to set the reheat, can choose the cooling reheat to control humidity and enhance the energy level, or set up the electric heater, to realize thermal compensation again after the summer dehumidification. It mainly meet the aerospace, automotive, instruments and meters, precision machining and other special industry requirements for air quality.



Air handling units for general technology purification occasion
The configuration of the function section are: mixed section, cooling section, fan section, primary efficiency filter (G4) section, medium efficiency filter (F8) section. At the same time,it equipped with electric heating, electric humidification, muffler to satisfy high cleanliness, constant temperature and humidity,low noise control cleanliness project. Such as: inspection and quarantine laboratory, electronics factory workshop, biological engineering R&D center, food processing, precision machinery, pharmaceutical processing and storage area and other places which have strict requirements for temperature and humidity, cleanliness.


Air handling units for general technology purification occasion
In addition to the general horizontal units, we can provide several kinds of structure forms of units, such as: vertical, ceiling, roof waterproof, etc.. They can meet the demand of different occasions. Ceiling structure unit can be installed on the ceiling. It is suitable for narrow room air conditioning or the area which has not a special equipment room;Roof waterproof structure unit can be installed on the outdoor roof or outdoor floor. Setting rofessional rainproof device and panel special thermal insulation design unit.

Air handling units for operating room and high clean requirement occasion
In addition to the basic function of configuration, with primary efficiency filter or medium efficiency filter, it equipped with electric heating and humidification section. Considering particularity of medical situations, AHU adopt double cold source system ( chilled water + direct expansion) and efficient unhoused centrifugal fan, provide frequency conversion control, in order to satisfy the high reliability requirements.

Air handling units with heat recovery device
Can configured with wheel heat recovery device, hot and cold air passes through hot wheel, heat and moisture exchange is carried out by the difference of temperature and steam pressure between fresh air and exhaust air, effective recovery of sensible heat and latent heat in exhaust air, achieve the purpose of energy conservation.Honeycomb structure with aluminum foil carrier and high efficient moisture absorbing coating for heat storage core body of heat exchanger, excellent characteristics of heat storage, moisture absorption and heat transfer, efficiency is higher than 75%.


Can configured with plate fin heat recovery device, so that the cold hot air flow directly through the same heat exchanger, in order to achieve the purpose of heat exchange.The heat exchanger adopts ginning aluminum foil,  corrugated aluminum foil heat exchanger made of heat conductor, no interme-diate heat medium is required,no power consumption,no loss of temperature difference,temperature efficiency is higher than 75%.