PCR Test Station Clean Room Air Handling Units

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Reference

Selection of Constant Temperature and Humidity Series for Air Conditioning in Clean Operating Room.

1. There are grade requirements for air purification in the space of the place of use, and the relative temperature and humidity require control accuracy. The clean operating room air-conditioning constant temperature and humidity system can be selected; Setting range: temperature is 18~28℃±1~5℃, relative humidity is 40~70%±3~5%;

2. Determine the rated air volume: calculate the circulating air volume per unit time according to the number of air changes in the space to be processed and the volume of the space. The rated air volume of the air conditioning unit in the clean operating room must be greater than the theoretical calculation air volume;

3. Determine the cold, heat and humidity load: calculate the cold, heat and humidity load of the space to be handled according to the relevant indoor and outdoor ambient air parameters, fresh air volume and surrounding structural forms;

4. Determine the model

a. When the rated air volume meets the requirements, but the cooling and heating load cannot meet the requirements, the selection should be based on the cooling and heating load.

b. When the rated air volume meets the requirements and the cooling and heating load also meets the requirements, the selection should be based on the air volume.

5. Determine the condensation method

a. The air-cooled type is suitable for dry and water-deficient areas. It is convenient to install and widely used. Note that there should be more than 1.5M space around the outdoor unit.

b. The water-cooled type is suitable for occasions with abundant water sources, good water quality, and easy installation of the cooling water system. The cooling water system users should prepare their own.

6. Determine the type of air supply structure

a. The front air supply type is suitable for the treatment of medium and small areas in the same room. The unit has a built-in high-efficiency and low-noise fan for easy installation

b. The top air supply method is suitable for medium and large processing spaces. The unit has a built-in high static pressure centrifugal fan, which can directly handle the air supply.

c. Direct air supply by pipe is suitable for large processing space. The unit has a built-in fan, and the user needs to provide an additional air box and return air duct to centrally process the supply air.

7. Special requirements can be customized

a. Computer centralized control or remote monitoring;

b. Special working conditions, overseas power supply voltage matching;

c. It can provide a constant temperature and humidity clean unit that exceeds the temperature and humidity requirements of the normal use environment: low temperature type, high temperature type, and low humidity type;

d. All fresh air type: meet the temperature and humidity requirements of all resh air conditions, and run intelligently throughout the operation;

e. Environment-friendly refrigerant type: green environment-friendly refrigerants R410A and R134A can be used;

f. Constant temperature and humidity air-conditioning products for clean operating rooms. Steam heating and humidification are clean constant temperature and humidity air-conditioning units that can be heated and humidified by steam;

g. Heat pump heating type: clean constant temperature and humidity air conditioning products that can be heated by heat pumps

Unit quick selection table（air volume):

Model	Nominal air volume m³/h	Windward area of coil㎡	Wind speed of the coil（m/s）
			2.00	2.25	2.50	2.75	3.00	3.25
			m³/h
0606	1500	0.16	1152	1296	1440	1584	1728	1872
0706	1800	0.2	1440	1620	1800	1980	2160	2340
0806	2200	0.24	1728	1944	2160	2376	2592	2808
0907	3200	0.35	2520	2835	3150	3465	3780	4095
0908	3800	0.42	3024	3402	3780	4158	4536	4914
1009	5000	0.56	4032	4536	5040	5544	6048	6552
1209	6300	0.7	5040	5670	6300	6930	7560	8190
1210	7200	0.8	5760	6480	7200	7920	8640	9360
1510	9500	1.04	7488	8424	9360	10296	11232	12168
1512	12000	1.3	9360	10530	11700	12870	14040	15210
1515	15000	1.69	12168	13689	15210	16731	18252	19773
1815	18000	2.08	14976	16848	18720	20592	22464	24336
1818	23000	2.56	18432	20736	23040	25344	27648	29952
2118	27000	3.04	21888	24624	27360	30096	32832	35568
2121	32000	3.61	25992	29241	32490	35739	38988	42237
2421	37000	4.18	30096	33858	37620	41382	45144	48906
2721	43000	4.75	34200	38475	42750	47025	51300	55575
2724	50000	5.5	39600	44550	49500	54450	59400	64350
3024	55000	6.16	44352	49896	55440	60984	66528	72072
3027	63000	7	50400	56700	63000	69300	75600	81900
3030	70000	7.84	56448	63504	70560	77616	84672	91728
3627	76000	8.5	61200	68850	76500	84150	91800	99450
3630	85000	9.52	68544	77112	85680	94248	102816	111384
3930	93000	10.36	74592	83916	93240	102564	111888	121212
3933	100000	11.47	82584	92907	103230	113553	123876	134199
3936	110000	12.58	90576	101898	113220	124542	135864	147186

Note: 1. It is recommended to add a water baffle if the wind speed exceeds 2.75m/s.

Unit quick selection table（cooling capacity of coil section under return air condition）:

Model	Nominal air volume m³/h	4 rows		6 rows		8 rows
		Cooling capacity	Water volume	Cooling capacity	Water volume	Cooling capacity	Water volume
		kW	m³/h	kW	m³/h	kW	m³/h
0606	1500	8.2	1.4	10.9	1.87	13.2	2.27
0706	1800	10.2	1.8	13.6	2.34	16.5	2.84
0806	2200	12.6	2.2	16.4	2.82	19.8	3.41
0907	3200	17.8	3.1	23.8	4.09	28.8	4.95
0908	3800	21.5	3.7	28.6	4.92	34.6	5.95
1009	5000	28.7	4.9	38.1	6.55	46.2	7.95
1209	6300	35.8	6.2	47.8	8.22	57.5	9.89
1210	7200	41.1	7.1	54.6	9.39	66.1	11.37
1510	9500	53.3	9.2	70.8	12.18	85.6	14.72
1512	12000	66.7	11.5	88.6	15.24	107.1	18.42
1515	15000	86.6	14.9	115.3	19.83	138.6	23.84
1815	18000	106.5	18.3	141.8	24.39	170.3	29.29
1818	23000	131.2	22.6	172.9	29.74	210.5	36.21
2118	27000	155.8	26.8	206.8	35.57	248.6	42.76
2121	32000	185.1	31.8	245.2	42.17	296.5	51.00
2421	37000	214.2	36.8	285.1	49.04	341.8	58.79
2721	43000	243.3	41.8	323.6	55.66	385.6	66.32
2724	50000	281.5	48.4	374.5	64.41	450.3	77.45
3024	55000	315.7	54.3	419.3	72.12	500.4	86.07
3027	63000	358.6	61.7	476.5	81.96	560.4	96.39
3030	70000	400.5	68.9	534.1	91.87	640.5	110.17
3627	76000	432.6	74.4	578.2	99.45	690.5	118.77
3630	85000	482.5	83.0	645.8	111.08	765.8	131.72
3930	93000	520.6	89.5	702.3	120.80	830.5	142.85
3933	100000	576.1	99.1	778.4	133.88	940.8	161.82
3936	110000	630.6	108.5	850.6	146.30	970.5	166.93

Note:

1. The inlet temperature of chilled water is 7°C, and the outlet temperature is 12°C;

2. Return air condition: inlet air dry bulb temperature 27℃, wet bulb temperature 19.5℃;

3. The above parameters are for reference only. If the working conditions and coil circuit arrangement are changed, the parameters will change.

Unit quick selection table（cooling capacity of coil section under fresh air condition）:

Model	Nominal air volume m³/h	4 rows		6 rows		8 rows
		Cooling capacity	Water volume	Cooling capacity	Water volume	Cooling capacity	Water volume
		kW	m³/h	kW	m³/h	kW	m³/h
0606	1500	18.9	3.3	23.5	4.04	28.1	4.83
0706	1800	23.5	4.0	29.4	5.06	35.1	6.04
0806	2200	28.3	4.9	35.3	6.07	42.2	7.25
0907	3200	41.3	7.1	51.4	8.84	61.5	10.57
0908	3800	49.5	8.5	61.7	10.61	73.8	12.69
1009	5000	66.2	11.4	82.3	14.15	98.4	16.92
1209	6300	82.3	14.2	102.8	17.68	122.9	21.15
1210	7200	94.5	16.3	117.5	20.21	140.5	24.17
1510	9500	122.9	21.1	152.8	26.27	182.7	31.42
1512	12000	153.2	26.4	190.9	32.84	228.3	39.27
1515	15000	195.6	33.6	248.2	42.69	296.8	51.05
1815	18000	245.6	42.2	305.5	52.55	365.3	62.83
1818	23000	302.1	52.0	376.0	64.67	449.6	77.33
2118	27000	358.7	61.7	446.5	76.80	533.9	91.83
2121	32000	426.1	73.3	530.2	91.20	634.0	109.05
2421	37000	492.8	84.8	613.9	105.60	734.1	126.27
2721	43000	560.8	96.5	697.7	120.00	834.2	143.49
2724	50000	648.9	111.6	807.8	138.94	965.9	166.14
3024	55000	727.6	125.1	904.8	155.62	1081.9	186.08
3027	63000	826.4	142.1	1028.1	176.84	1229.4	211.45
3030	70000	924.8	159.1	1151.5	198.06	1376.9	236.83
3627	76000	1005.4	172.9	1248.4	214.73	1492.8	256.76
3630	85000	1124.3	193.4	1398.3	240.50	1672.0	287.58
3930	93000	1200.6	206.5	1514.6	260.51	1812.4	311.73
3933	100000	1320.6	227.1	1671.4	287.48	2010.3	345.77
3936	110000	1450.7	249.5	1825.7	314.02	2186.5	376.08

Note:

1. The inlet temperature of chilled water is 7℃, and the outlet temperature is 12℃;

2. Fresh air conditions: inlet air dry bulb temperature 35℃, wet bulb temperature 28℃;

3. The above parameters are for reference only. If the working conditions and coil circuit arrangement are changed, the parameters will change.

Unit quick selection table（hot water coil heating capacity）:

Model	Nominal air volume m³/h	Return air condition			Fresh air condition
		2 rows	3 rows	4 rows	2 rows	3 rows	4 rows
		heating capacity	heating capacity	heating capacity	heating capacity	heating capacity	heating capacity
		kW	kW	kW	kW	kW	kW
0606	1500	9.4	12.5	14.8	11.1	15.1	18.1
0706	1800	11.8	15.6	18.5	13.9	18.9	22.6
0806	2200	14.1	18.8	22.2	16.7	22.7	27.2
0907	3200	20.6	27.3	32.4	24.3	33.0	39.6
0908	3800	24.7	32.8	38.9	29.1	39.6	47.5
1009	5000	32.9	43.8	51.8	38.9	52.9	63.4
1209	6300	41.1	54.7	64.8	48.6	66.1	79.2
1210	7200	47.0	62.5	74.0	55.5	75.5	90.5
1510	9500	61.1	81.3	96.2	72.2	98.2	117.7
1512	12000	76.4	101.6	120.3	90.2	122.7	147.1
1515	15000	99.3	132.0	156.3	117.2	159.5	191.2
1815	18000	122.2	162.5	192.4	144.3	196.3	235.3
1818	23000	150.4	200.0	236.8	177.6	241.6	289.6
2118	27000	178.6	237.5	281.2	210.9	286.9	343.9
2121	32000	212.1	282.0	333.9	250.4	340.7	408.4
2421	37000	245.6	326.6	386.7	290.0	394.5	472.9
2721	43000	279.1	371.1	439.4	329.5	448.3	537.3
2724	50000	323.1	429.7	508.8	381.6	519.1	622.2
3024	55000	361.9	481.3	569.8	427.4	581.4	696.9
3027	63000	411.3	546.9	647.5	485.6	660.6	791.9
3030	70000	460.6	612.5	725.2	543.9	739.9	886.9
3627	76000	499.4	664.1	786.3	589.7	802.2	961.6
3630	85000	559.3	743.8	880.6	660.5	898.5	1077.0
3930	93000	608.7	809.4	958.3	718.7	977.7	1172.0
3933	100000	673.9	896.1	1061.0	795.7	1082.5	1297.5
3936	110000	739.1	982.8	1163.7	872.7	1187.2	1423.1

Note:

1. The inlet temperature of hot water is 60°C, and the outlet temperature is 50°C;

2. Return air condition: inlet air dry bulb temperature 15℃; fresh air condition: inlet air dry bulb temperature 7℃;

3. The above parameters are for reference only. If the working conditions and coil circuit arrangement are changed, the parameters will change.

Unit quick selection table（hot water coil heating capacity）:

Model	Nominal air volume m³/h	One row of steam heating			Two rows of steam heating
		Steam pressure			Steam pressure
		0.1MPa	0.2MPa	0.3MPa	0.1MPa	0.2MPa	0.3MPa
		kW	kW	kW	kW	kW	kW
0606	1500	8.9	10.2	11.1	14.3	16.2	17.6
0706	1800	11.1	12.8	13.9	17.9	20.3	22.0
0806	2200	13.4	15.3	16.7	21.5	24.3	26.4
0907	3200	19.5	22.3	24.3	31.3	35.4	38.5
0908	3800	23.4	26.8	29.1	37.5	42.5	46.2
1009	5000	31.2	35.7	38.9	50.1	56.7	61.6
1209	6300	38.9	44.6	48.6	62.6	70.9	77.0
1210	7200	44.5	51.0	55.5	71.5	81.0	88.0
1510	9500	57.9	66.3	72.2	93.0	105.3	114.4
1512	12000	72.3	82.9	90.2	116.2	131.6	143.0
1515	15000	94.0	107.7	117.2	151.0	171.1	185.9
1815	18000	115.7	132.6	144.3	185.9	210.6	228.8
1818	23000	142.4	163.2	177.6	228.8	259.2	281.6
2118	27000	169.1	193.8	210.9	271.7	307.8	334.4
2121	32000	200.8	230.1	250.4	322.6	365.5	397.1
2421	37000	232.5	266.5	290.0	373.6	423.2	459.8
2721	43000	264.2	302.8	329.5	424.5	480.9	522.5
2724	50000	305.9	350.6	381.6	491.6	556.9	605.0
3024	55000	342.7	392.7	427.4	550.6	623.7	677.6
3027	63000	389.4	446.3	485.6	625.6	708.8	770.0
3030	70000	436.1	499.8	543.9	700.7	793.8	862.4
3627	76000	472.8	541.9	589.7	759.7	860.6	935.0
3630	85000	529.6	606.9	660.5	850.9	963.9	1047.2
3930	93000	576.3	660.5	718.7	925.9	1049.0	1139.6
3933	100000	638.0	731.2	795.7	1025.1	1161.3	1261.7
3936	110000	699.8	802.0	872.7	1124.3	1273.7	1383.8