PRODUCT OVERVIEW
Direct expansion combined air treatment unit is a kind of conbined air treatmentunit with cold and heat source,which is composed ofoutdoor part (air cooling pipe type condensing unit) and irdoor part (air treatment unit using refrigerant evaporator, inctding
control systcn). Indoor and outdoor cnit through rcfrigcrart coppcr pipc conncction, quick installation,irdoor machinc without framc
maze profile structure,using the same modular function combination form,tnit in addition to the advantages of convenient system
nstallation,low cost,also has high strength, high seal,hig insulation, high clean,high cold bridge performance acvantage, unit
configuration intelligent temperatcre and humidity conitrol system, canl realize the use of regioral tenperature and humidity and
cleanliness precision control.
The straight combined air treatment unit is suitable for hospital operating room, PCR laboratory, animal room and
other public health medical and scientific research institutions laboratory,biopharmaceutical,biological engine-
ering, food testing, electronic semiconductor and other places with air cleanliness and air conditioning requirements,
suitable for dozens to thousands of squareneters of air conditioning purification area.
PRODUCT FEATURES
The air can be cooled,moistened,dried, heated, moistened, filtered and purified, etc.
Large air volume and high pressure;eir volume range:1500-40000 m3/h. Has a good filtration system,strict positive and negative pressure control.
Optional DDC or PLC intelligent contrcl system,temperature and humidity control accuraey is high.
Optional frequency conversion technology.
Model |
Air volume
m3/h |
Power
KW |
Pa |
Noise
dB |
Oerall dinensions Lengt-
width and height
mm |
Air vent |
Air outlet |
Refrigeration capacity KW |
Heating Capacity
KW |
Electrical heating
KW |
Outdoor
unit |
Fluid
tube
φ |
Air
tube
φ |
RNZK-15R |
1500 |
2.2 |
400 |
50 |
3200X1000X1000 |
600*400 |
400*300 |
10.70 |
22.40 |
15 |
1150x430x1251 |
12.7 |
19 |
RNZK-20R |
2000 |
2.2 |
400 |
52 |
3200X1000X1000 |
600*400 |
400*300 |
24.30 |
25 |
20 |
1300x453x1323 |
12.7 |
19 |
RNZK-30R |
3000 |
3 |
420 |
55 |
3300X1000x1000 |
800*400 |
400*300 |
27.80 |
33.60 |
25 |
1300x454x1323 |
16 |
28 |
RNZK-40R |
4000 |
3 |
450 |
56 |
3200X1000X1000 |
800*400 |
400*300 |
35.30 |
39 |
30 |
1500x800x1650 |
16 |
28 |
RNZK-50R |
5000 |
4 |
500 |
57 |
3400X1000X1000 |
800*500 |
500*400 |
42 |
45 |
35 |
1500x800x1650 |
22 |
35 |
RNZK-60R |
6000 |
4 |
500 |
59 |
3600X1000X1000 |
800*500 |
500*400 |
65.60 |
60.50 |
40 |
1850x1000x1950 |
22 |
35 |
RNZK-70R |
7000 |
4 |
520 |
60 |
3600X1000X1000 |
800*630 |
500*400 |
73 |
80 |
50 |
1850x1000x1930 |
22 |
35 |
RNZK-80R |
8000 |
5.5 |
520 |
60 |
3600X1000X1000 |
800*630 |
500*400 |
67.50 |
97.50 |
50 |
2000x1100x1950 |
22 |
35 |
RNZK-100R |
10000 |
7.5 |
600 |
62 |
3800X1000X1000 |
1000*630 |
550*400 |
98 |
107 |
60 |
2290x1100x2100 |
22 |
35 |
RNZK-120R |
12000 |
11 |
620 |
62 |
4000X1000X1000 |
1000*630 |
600*400 |
125 |
155 |
70 |
2290×1200×2200 |
22 |
35 |
RNZK-150R |
15000 |
11 |
620 |
64 |
4200X1000X1000 |
1200*630 |
630*500 |
149 |
172 |
80 |
2290x1200x2200 |
22 |
35 |
RNZK-200R |
20000 |
15 |
700 |
60 |
4000X1000X1000 |
1200*000 |
800*500 |
101 |
217 |
80 |
2290x1100x210O |
22 |
35 |


Shandong Oulai Ruina Environmental Technology Co., Ltd, founded in 1996, boasts an impressive 23-year legacy of innovation and excellence. Within its expansive workshop spanning over 10,000 square meters, the company houses over 60 state-of-the-art processing equipment, backed by a robust investment exceeding 60 million yuan. This dynamic enterprise is a hub of comprehensive capabilities, seamlessly integrating research, design, production, sales, installation, and unparalleled service.
Our premier product offerings include a diverse range of high-performance solutions: from heat recovery fresh air ventilators and fresh air total heat exchangers to silent exhaust fans and high-efficiency purification fans, both bidirectional and unidirectional. We also specialize in central self-balancing fresh air systems, fresh air purifiers, electrostatic precipitators, rotary heat recovery units, and advanced air treatment solutions.
Our fan coil units and dehumidification technologies are expertly crafted to meet the nuanced demands of sectors such as healthcare, science, education, medical care, finance, and modern office environments.
Our commitment to excellence is matched by our expansive service offerings, including comprehensive computer design, detailed drawing disassembly, OEM, and ODM services.
We are proud to have forged enduring partnerships with global market leaders like 3M and Haier Group.
Leading the charge in innovation, we've equipped our operations with cutting-edge production technologies, such as fully automatic fiber laser cutting machines, Y-shaped solid laser cutters, CNC turret punching, bending, and shearing machines, all benchmarked to international standards.
Our dedication to quality is underscored by our achievements in certifications, including ISO9001, ISO14001, and OHSAS18001. We have also earned national-level fresh air CCC certification, CRAA performance certification, a national industrial production license for air handling units, and numerous testing reports.
Our pioneering spirit is further evidenced by holding one invention patent, twelve utility model patents, and seven design patents, reinforcing our position at the forefront of industry innovation.

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We are a factory trade integrated foreign trade enterprise, and our advantages are:
1. Customized service capability: We can better meet the customized needs of our customers. Based on their specific requirements, we can provide personalized customization in product design, production technology, packaging, and other aspects, and provide customized products and solutions for our customers.
2. Accumulation of Quality Reputation: Strict quality control helps enterprises establish a good quality reputation, win the trust and reputation of customers in the market, and promote long-term development and market share expansion.
3. Fast delivery: We can flexibly adjust production plans and arrange production schedules according to order conditions and market demand to ensure timely delivery. For urgent orders or order changes, able to quickly coordinate production resources, make quick responses, and improve customer satisfaction.
4. Professional technical support: We have a professional production technology team that can provide customers with professional technical support and solutions during the product sales process, helping them solve problems encountered during product use and enhancing their trust and dependence on us.
5. After sales response: When customers encounter problems during use, our company's after-sales team can respond quickly, solve problems in a timely manner, and provide high-quality after-sales service.

1Q: I cannot find the product in your catalog. Can you customize it for me?
1A: Sure, you can directly consult customer service.
2Q:Can you customize products and packaging?
2A: Yes, it is possible.
3Q:How can I obtain samples?
3A: We provide free samples of raw materials, and you only need to pay the lowest shipping cost.
4Q:How to ensure product quality?
4A: We have international authoritative certification.
5Q: I need a price list for all your products. Do you have a price list?
5A: Please send us your information and submit it.
6Q: Can we provide drawing design services?
6A: Yes, we have a professional ventilation system engineering team to design and optimize solutions for your project.
7Q: Do you have technical support?
7A: We have a professional technical team to reply to you.
8Q: Are the accompanying installation accessories available for sale?
8A: Yes, there are. Please consult customer service for attached products and quotations at any time
9Q: What is your delivery time?
9A: For standard products, it takes approximately 30-40 days.