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Cabinet Type Air-handling Unit (LEG)

Product Overview
DunAn patent fastening type plate and frame integrated air-handling unit is a kind of new aluminum alloy frame developed by our company. The unit is mainly consisted of filter, oval tube exchanger tube, fan, and motor, etc., meeting the requirements of various residual pressures,various cooling capacity, and various air outlet forms. Its housing is directly assembled by side panels and the panel frame adopt patent aluminum alloy and insulation composite structure, so as to install the panel in place accurately, which guarantee the tightness of case and anti-cold bridge as well as the case strength.
This series of unit operate stably,with low noise and excellent overall performance. It can be widely used in hotels, shopping malls, office buildings, stadiums, subways and other occasions requiring air-handling.

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Product Description

Heat Exchanger

1_0005_fHkUCC4A0

Features of oval tube heat exchanger:

◎ Reduce the wind resistance by 50%, with low fan energy consumption

◎ Increase the heat transfer efficiency by 10%-15%, guaranteeing excellent unit performance

◎ Anti-corrosive hydrophilic aluminum fin, ensures longer service life

Lower Wind Resistance:

Under same tube spacing,increasing the net flow area between tubes can decrease the net face velocity and reduce the turbulence on the leeward side of oval tube, so as to reduce the wind resistance. The following figures on the left are the comparison of wind-side resistance test results between oval tube heat exchanger and circular tube heat exchanger under different wind velocities. It can be seen from the figure that the wind-side resistance of oval tube heat exchanger is about 50%lower than that of circular tube heat exchanger.


Airflow disturbance diagram

Higher Heat Transfer Coefficient:

Oval tube avoids the escape of airflow in circular tube, increasing the effective contact surface area by 40%, so as to improve the efficiency of heat exchange. The following figure on the right is the comparison of heat transfer coefficient test results between oval tube heat exchanger and circular tube heat exchanger under different wind velocities. It can be seen from the figure that the heat transfer coefficient of oval tube heat exchanger is about 10%-15 higher than that of circular tube heat exchanger.

More energy saving:

Analysis and comparison of energy saving for oval tube heat exchanger and circular tube heat exchanger

企业微信截图_e1333df1-6373-4a59-9df9-dfec43c7e60b

Take a single 100000m/h cabinet as an example to compare the air delivery cost between oval tube heat exchanger and circular tube heat exchanger. Calculated by annual using hours of 3000, the oval tube heat exchanger can save annual cost of (34156-16187)=17970(RMB);

Relatively saving cost:(17970/34156)=53%.

Relatively Annual Saving Cost:53%

Unit Model Denotation Method

(Unit left/right direction identification is decided by facing the return air inlet)

Type I(Return Air)Performance Parameter Table

Unit model	Air volume m³/h	Refrigerating capacity kW	Heating capacity kW	Water flow m³/h	Water resistance kPa	External residual pressure				Motor power kW				Rated current A				Noise dB(A)
						I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV
GI 15(1)	1500	8.4	14.2	1.5	10.0	120	180	280	\	0.2	0.25	0.32	\	0.8	0.9	1.3	\	51	52	56	\
GI20(1)	2000	11.6	18.3	2.0	12.9	120	280	350		0.32	0.45	0.55	\	1.3	1.9	2.0	\	56	57	58	\
GI25(1)	2500	14.5	24.2	2.5	15.9	120	260	340	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	58	58	58	\
GI30(1)	3000	16.5	29.8	2.9	18.5	180	240	340	\	0.45	0.55	0.55	\	1.9	2.0	2.0	\	58	58	58	\
GI40(1)	4000	23.4	43.8	4.1	26.8	220	270	370	\	0.75	0.75	1	\	2.3	2.3	3	\	58	60	60	\
GI50(1)	5000	28.4	55.9	4.9	6.5	200	300	420	\	0.75	1	1.3	\	2.3	3	3.4	\	60	62	62	\
GI60(1)	6000	34.8	67.2	6.0	8.0	180	250	330	410	1.1	1.5	1.5	2.2	2.74	3.67	3.67	4.9	56	57	58	60
GI70(1)	7000	40.8	77.5	7.1	11.0	180	250	330	410	1.1	1.1	1.5	2.2	2.93	2.93	3.67	4.9	59	60	61	62
GI 80(1)	8000	47.5	88.6	8.2	14.3	180	250	330	410	1.5	1.5	2.2	3	3.86	3.86	4.9	6.5	59	59	60	61
GI90(1)	9000	54.7	99.7	9.5	18.7	180	280	380	480	1.5	2.2	2.2	3	3.86	4.9	4.9	6.5	62	62	62	63
GI 100(1)	10000	61.5	112.1	10.6	24.3	180	280	380	480	2.2	2.2	3	3	5.52	5.52	6.5	6.5	63	63	64	65
GI 120(2)	12000	72.0	140.8	12.5	31.1	180	280	380	480	2.2	3	4	4	4.9	6.5	8.56	8.56	59	61	63	65
GI 150(2)	15000	92.1	165.8	15.9	32.4	180	280	380	480	2.2	3	4	4	5.52	7.39	8.56	8.56	64	64	65	67
GI 180(2)	18000	110.2	215.1	19.0	38.6	200	300	400	500	4	5.5	5.5	7.5	8.56	11.6	11.6	15.3	65	65	66	67
GI200(2)	20000	126.7	226.1	21.9	39.8	200	300	400	500	5.5	5.5	5.5	7.5	11.6	11.6	11.6	15.3	66	67	68	69
GI240(2)	24000	149.0	272.0	25.7	24.2	200	300	400	500	5.5	5.5	7.5	11	13.0	11.6	15.3	21.9	66	66	67	68
GI270(2)	27000	168.0	306.0	29.0	23.9	300	400	500	600	7.5	11	11	11	15.3	21.9	21.9	21.9	69	69	70	71
GI300(2)	30000	189.1	340.4	32.6	23.7	300	400	500	600	7.5	11	11	11	16.8	21.9	21.9	21.9	68	69	69	70
GI350(2)	35000	221.2	395.0	38.2	26.3	300	400	500	600	7.5	11	11	15	16.8	21.9	21.9	29.3	68	69	70	71
GI400(2)	40000	250.8	451.4	43.2	24.0	300	400	500	600	11	11	15	15	23.9	21.9	29.3	29.3	71	72	72	73
GI450(2)	45000	282.2	507.9	48.7	24.0	300	400	500	600	15	15	15	18.5	31.4	31.4	29.3	35.8	74	74	75	75

Refrigerating working condition of standard return air: Air inlet dry bulb temperature:27℃, air inlet wet bulb temperature: 19.5C, water inlet temperature: 7℃, and water outlet temperature:12℃;

Heating working condition of standard return air:Air inlet dry bulb temperature: 15℃, water inlet temperature: 60℃

Type ll (Return Air)Performance Parameter Table

Unit model	Air volume m³/h	Refrigerating capacity kW	Heating capacity kW	Water flow m³/h	Water resistance kPa	External residual pressure				Motor power kW				Rated current A				Noise dB(A)
						工	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	工	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV
GⅡ15(1)	1500	11.2	18.3	2.0	26.0	90	150	250	\	0.2	0.25	0.32	\	0.8	0.9	1.3	\	51	52	56	\
GⅡ20(1)	2000	15.2	23.6	2.7	33.2	90	250	320	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	56	57	58	\
GⅡ25(1)	2500	18.5	28.5	3.2	29.5	90	230	310	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	58	58	58	\
GⅡ30(1)	3000	22.7	36.6	4.0	8.3	150	210	310	\	0.45	0.55	0.55	\	1.9	2.0	2.0	\	58	58	58	\
GⅡ40(1)	4000	31.5	51.4	5.5	11.0	190	240	340	\	0.75	0.75	1	\	2.3	2.3	3		58	60	60	\
GⅡ50(1)	5000	36.8	64.1	6.4	14.5	170	270	390	\	0.75	1	1.3	\	2.3	3	3.4	\	60	62	62	\
GⅡ60(1)	6000	44.9	74.7	7.8	17.1	180	250	330	410	1.1	1.5	1.5	2.2	2.74	3.67	3.67	4.9	56	57	58	60
GⅡ70(1)	7000	51.6	86.7	8.9	23.8	180	250	330	410	1.1	1.5	1.5	2.2	2.93	3.86	3.67	4.9	59	60	61	62
GⅡ80(1)	8000	62.8	100.5	10.9	32.0	180	250	330	410	1.5	1.5	2.2	3	3.86	3.86	4.9	6.5	59	59	60	61
GⅡ90(1)	9000	71.2	113.0	12.3	15.0	180	280	380	480	1.5	2.2	2.2	3	3.86	4.9	4.9	6.5	62	62	62	63
GⅡ100(1)	10000	79.2	122.0	13.7	18.2	180	280	380	480	2.2	2.2	3	3	5.52	4.9	6.5	6.5	63	63	64	65
GⅡ120(2)	12000	97.1	150.8	16.8	30.6	180	280	380	480	2.2	3	4	4	4.9	6.5	8.56	8.56	59	61	63	65
GⅡ150(2)	15000	113.8	175.3	19.7	32.5	180	280	380	480	3	3	4	5.5	7.39	6.5	8.56	11.6	64	64	65	67
GⅡ180(2)	18000	136.6	210.3	23.6	25.0	200	300	400	500	4	5.5	5.5	7.5	8.56	11.6	11.6	15.3	65	65	66	67
GⅡ200(2)	20000	159.2	233.6	27.5	27.2	200	300	400	500	5.5	5.5	7.5	7.5	11.6	11.6	15.3	15.3	66	67	68	69
GⅡ240(2)	24000	182.0	280.3	31.4	38.7	200	300	400	500	5.5	7.5	7.5	11	13.0	15.3	15.3	21.9	66	66	67	68
GⅡ270(2)	27000	204.7	315.2	35.3	38.2	300	400	500	600	7.5	11	11	11	15.3	21.9	21.9	21.9	69	69	70	71
GⅡ300(2)	30000	228.6	352.1	39.4	38.1	300	400	500	600	7.5	11	11	11	16.8	21.9	21.9	21.9	68	69	69	70
GⅡ350(2)	35000	275.2	408.6	47.5	39.2	300	400	500	600	11	11	11	15	23.9	21.9	21.9	29.3	68	69	70	71
GⅡ400(2)	40000	303.2	467.0	52.3	39.5	300	400	500	600	11	15	15	15	23.9	31.4	29.3	29.3	71	72	72	73
GⅡ450(2)	45000	341.2	525.4	58.8	46.8	300	400	500	600	15	15	15	18.5	31.4	31.4	29.3	35.8	74	74	75	75

Refrigerating working condition of standard return air: Air inlet dry bulb temperature:27℃, air inlet wet bulb temperature: 19.5℃, water inlet temperature: 7℃, and water outlet temperature: 12℃;

Heating working condition of standard return air: Air inlet dry bulb temperature: 15℃, water inlet temperature:60 ℃

Type lll (Return Air)Performance Parameter Table

Unit model	Air volume m³/h	Refrigerating capacity kW	Heating capacity kW	Water flow m³/h	Water resistance kPa	External residual pressure				Motor power kW				Rated current A				Noise dB(A)
						I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	工	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV
GⅢ15(1)	1500	12.6	20.9	2.2	9.6	80	140	240	\	0.2	0.25	0.32	\	0.8	0.9	1.3	\	51	52	56	\
GⅢ20(1)	2000	16.5	27.0	2.9	9.8	80	240	310	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	56	57	58	\
GⅢ25(1)	2500	21.0	32.6	3.7	12.7	80	220	300	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	58	58	58	\
GⅢ30(1)	3000	25.1	41.9	4.4	14.3	140	200	300	\	0.45	0.55	0.55	\	1.9	2.0	2.0	\	58	58	58	\
GⅢ40(1)	4000	33.8	58.8	5.9	17.5	180	230	330	\	0.75	0.75	1	\	2.3	2.3	3	\	58	60	60	\
GⅢ50(1)	5000	42.5	73.4	7.4	23.0	160	260	380	\	0.75	1	1.3	\	2.3	3	3.4	\	60	62	62	\
GⅢ60(1)	6000	51.4	85.5	8.9	27.2	220	290	370	450	1.5	1.5	2.2	2.2	3.67	3.67	4.9	4.9	56	57	58	60
GⅢ70(1)	7000	56.6	99.2	9.8	38.1	220	290	370	450	1.5	1.5	2.2	2.2	3.86	3.67	4.9	4.9	59	60	61	62
GⅢ80(1)	8000	68.5	115.1	11.8	8.8	220	290	370	450	1.5	2.2	2.2	2.2	3.67	4.9	4.9	4.9	59	59	60	61
GⅢ90(1)	9000	78.2	129.4	13.5	11.5	220	320	420	520	2.2	2.2	3	3	4.9	4.9	6.5	6.5	62	62	62	63
GⅢ100(1)	10000	87.6	139.6	15.1	13.9	220	320	420	520	2.2	3	3	4	4.9	6.5	6.5	8.56	63	63	64	65
GⅢ120(2)	12000	106.5	172.6	18.4	23.4	220	320	420	520	3	4	4	5.5	6.5	8.56	8.56	11.6	59	61	63	65
GⅢ150(2)	15000	130.3	200.6	22.5	24.8	220	320	420	520	3	4	5.5	5.5	6.5	8.56	11.6	11.6	64	64	65	67
GⅢ180(2)	18000	156.3	240.7	27.0	20.7	200	300	400	500	4	5.5	5.5	7.5	8.56	11.6	11.6	15.3	65	65	66	67
GⅢ200(2)	20000	173.6	267.4	30.0	22.5	200	300	400	500	5.5	5.5	7.5	7.5	11.6	11.6	15.3	15.3	66	67	68	69
GⅢ240(2)	24000	198.2	320.8	34.2	33.5	200	300	400	500	5.5	7.5	7.5	11	13.0	16.8	15.3	21.9	66	66	67	68
GⅢ270(2)	27000	225.3	360.9	38.9	33.0	300	400	500	600	7.5	11	11	11	16.8	21.9	21.9	21.9	69	69	70	71
GⅢ300(2)	30000	261.7	403.0	45.1	35.5	300	400	500	600	7.5	11	11	11	16.8	23.9	21.9	21.9	68	69	69	70
GⅢ350(2)	35000	303.7	467.8	52.4	39.4	300	400	500	600	11	11	11	15	23.9	23.9	21.9	29.3	68	69	70	71
GⅢ400(2)	40000	347.1	534.6	59.8	36.6	300	400	500	600	11	11	15	15	23.9	23.9	29.3	29.3	71	72	72	73
GⅢ450(2)	45000	390.6	601.5	67.3	36.6	300	400	500	600	15	15	15	18.5	31.4	31.4	29.3	35.8	74	74	75	75

Refrigerating working condition of standard return air: Air inlet dry bulb temperature:27℃, air inlet wet bulb temperature: 19.5℃, water inlet temperature: 7℃, and water outlet temperature:12℃;

Heating working condition of standard return air: Air inlet dry bulb temperature: 15℃, water inlet temperature: 60℃

Type I (Fresh Air)Performance Parameter Table

Unit model	Air volume m³/h	Refrigerating capacity kW	Heating capacity kW	Water flow m³/h	Water resistance kPa	External residual pressure				Motor power kW				Rated current A				Noise dB(A)
						工	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV
GXI 15(1)	1500	19.6	21.1	3.4	8.0	120	180	280	\	0.2	0.25	0.32	\	0.8	0.9	1.3	\	51	52	56	\
GXI20(1)	2000	27.1	28.4	4.7	10.6	120	280	350		0.32	0.45	0.55	\	1.3	1.9	2.0	\	56	57	58	\
GXI25(1)	2500	31.7	34.9	5.5	16.1	120	260	340	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	58	58	58	\
GXI30(1)	3000	40.1	42.1	7.0	24.2	180	240	340	\	0.45	0.55	0.55	\	1.9	2.0	2.0	\	58	58	58	\
GXI40(1)	4000	53.4	58.7	9.2	30.0	220	270	370	\	0.75	0.75	1	\	2.3	2.3	3		58	60	60	\
GXI50(1)	5000	64.8	74.1	11.2	8.0	200	300	420	\	0.75	1	1.3	\	2.3	3	3.4	\	60	62	62	\
GXI60(1)	6000	75.0	82.5	13.0	7.7	180	250	330	410	1.1	1.5	1.5	2.2	2.74	3.67	3.67	4.9	56	57	58	60
GXI70(1)	7000	88.1	96.9	15.2	7.8	180	250	330	410	1.1	1.1	1.5	2.2	2.93	2.93	3.67	4.9	59	60	61	62
GXI80(1)	8000	101.3	111.4	17.5	10.3	180	250	330	410	1.5	1.5	2.2	3	3.86	3.86	4.9	6.5	59	59	60	61
GXI90(1)	9000	113.2	124.5	19.5	13.5	180	280	380	480	1.5	2.2	2.2	3	3.86	4.9	4.9	6.5	62	62	62	63
GXI 100(1)	10000	134.0	139.0	23.1	17.0	180	280	380	480	2.2	2.2	3	3	5.52	5.52	6.5	6.5	63	63	64	65
GXI 120(2)	12000	166.2	182.8	28.7	25.7	180	280	380	480	2.2	3	4	4	4.9	6.5	8.56	8.56	59	61	63	65
GXI 150(2)	15000	189.5	208.5	32.7	26.0	180	280	380	480	2.2	3	4	4	5.52	7.39	8.56	8.56	64	64	65	67
GXI 180(2)	18000	238.0	250.2	41.0	25.6	200	300	400	500	4	5.5	5.5	7.5	8.56	11.6	11.6	15.3	65	65	66	67
GXI200(2)	20000	279.0	278.0	48.1	29.4	200	300	400	500	5.5	5.5	5.5	7.5	11.6	11.6	11.6	15.3	66	67	68	69
GXI240(2)	24000	325.0	333.6	56.0	35.7	200	300	400	500	5.5	5.5	7.5	11	13.0	11.6	15.3	21.9	66	66	67	68
GXI270(2)	27000	368.0	375.3	63.4	36.1	300	400	500	600	7.5	11	11	11	15.3	21.9	21.9	21.9	69	69	70	71
GXI300(2)	30000	402.0	417.0	69.3	33.3	300	400	500	600	7.5	11	11	11	16.8	21.9	21.9	21.9	68	69	69	70
GXI350(2)	35000	472.0	486.5	81.4	37.3	300	400	500	600	7.5	11	11	15	16.8	21.9	21.9	29.3	68	69	70	71
GXI400(2)	40000	505.4	556.0	87.1	38.3	300	400	500	600	11	11	15	15	23.9	21.9	29.3	29.3	71	72	72	73
GXI450(2)	45000	568.6	625.5	98.0	37.0	300	400	500	600	15	15	15	18.5	31.4	31.4	29.3	35.8	74	74	75	75

Refrigerating working condition of standard fresh air: Air inlet dry bulb temperature: 35℃, air inlet wet bulb temperature: 28℃, water inlet temperature: 7℃, and water outlet temperature: 12℃;

Heating working condition of standard fresh air: Air inlet dry bulb temperature: 7℃, water inlet temperature:60℃.

Type ll (Fresh Air)Performance Parameter Table

Unit model	Air volume m³/h	Refrigerating capacity kW	Heating capacity kW	Water flow m³/h	Water resistance kPa	External residual pressure				Motor power kW				Rated current A				Noise dB(A)
						I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV
GXⅡ15(1)	1500	24.9	28.3	4.3	21.6	90	150	250	\	0.2	0.25	0.32	\	0.8	0.9	1.3	\	51	52	56	\
GXⅡ20(1)	2000	33.2	37.8	5.8	23.5	90	250	320	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	56	57	58	\
GXⅡ25(1)	2500	41.6	45.8	7.2	30.5	90	230	310	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	58	58	58	\
GXⅡ30(1)	3000	50.7	55.9	8.8	31.3	150	210	310		0.45	0.55	0.55	\	1.9	2.0	2.0	\	58	58	58	\
GXⅡ40(1)	4000	68.5	78.7	11.8	15.4	190	240	340	\	0.75	0.75	1	\	2.3	2.3	3	\	58	60	60	\
GXⅡ50(1)	5000	83.5	98.5	14.4	20.3	170	270	390	\	0.75	1	1.3	\	2.3	3	3.4	\	60	62	62	\
GXⅡ60(1)	6000	101.9	112.1	17.6	25.3	180	250	330	410	1.1	1.5	1.5	2.2	2.74	3.67	3.67	4.9	56	57	58	60
GXⅡ70(1)	7000	118.9	130.8	20.5	35.1	180	250	330	410	1.1	1.5	1.5	2.2	2.93	3.86	3.67	4.9	59	60	61	62
GXⅡ80(1)	8000	132.0	151.8	22.8	37.7	180	250	330	410	1.5	1.5	2.2	3	3.86	3.86	4.9	6.5	59	59	60	61
GXⅡ90(1)	9000	152.9	168.2	26.4	11.6	180	280	380	480	1.5	2.2	2.2	3	3.86	4.9	4.9	6.5	62	62	62	63
GXⅡ100(1)	10000	172.2	189.4	29.7	16.9	180	280	380	480	2.2	2.2	3	3	5.52	4.9	6.5	6.5	63	63	64	65
GXⅡ120(2)	12000	205.0	233.1	35.4	25.6	180	280	380	480	2.2	3	4	4	4.9	6.5	8.56	8.56	59	61	63	65
GXⅡ150(2)	15000	258.7	284.6	44.6	29.1	180	280	380	480	3	3	4	5.5	7.39	6.5	8.56	11.6	64	64	65	67
GXⅡ180(2)	18000	310.5	341.6	53.5	25.5	200	300	400	500	4	5.5	5.5	7.5	8.56	11.6	11.6	15.3	65	65	66	67
GXⅡ200(2)	20000	345.0	379.5	59.5	27.5	200	300	400	500	5.5	5.5	7.5	7.5	11.6	11.6	15.3	15.3	66	67	68	69
GXⅡ240(2)	24000	414.0	455.4	71.4	39.9	200	300	400	500	5.5	7.5	7.5	11	13.0	15.3	15.3	21.9	66	66	67	68
GXⅡ270(2)	27000	465.7	512.3	80.3	39.4	300	400	500	600	7.5	11	11	11	15.3	21.9	21.9	21.9	69	69	70	71
GXⅡ300(2)	30000	517.5	569.3	89.2	39.0	300	400	500	600	7.5	11	11	11	16.8	21.9	21.9	21.9	68	69	69	70
GXⅡ350(2)	35000	603.8	664.1	104.1	43.5	300	400	500	600	11	11	11	15	23.9	21.9	21.9	29.3	68	69	70	71
GXⅡ400(2)	40000	690.0	759.0	118.9	43.5	300	400	500	600	11	15	15	15	23.9	31.4	29.3	29.3	71	72	72	73
GXⅡ450(2)	45000	776.3	853.9	133.8	43.5	300	400	500	600	15	15	15	18.5	31.4	31.4	29.3	35.8	74	74	75	75

Refrigerating working condition of standard fresh air: Air inlet dry bulb temperature: 35℃, air inlet wet bulb temperature: 28℃, water inlet temperature: 7℃, and water outlet temperature: 12℃;

Heating working condition of standard fresh air: Air inlet dry bulb temperature: 7℃, water inlet temperature: 60℃.

Type lll (Fresh air)Performance Parameter Table

Unitmodel	Air volume m³/h	Refrig- erating capacity kW	Heating capacity kW	Water flow m³/h	Water resistance kPa	External residual pressure				Motor power kW				Rated current A				Noise dB(A)
Unitmodel	Air volume m³/h	Refrig- erating capacity kW	Heating capacity kW	Water flow m³/h	Water resistance kPa	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV	I	Ⅱ	Ⅲ	IV
GXⅢ15(1)	1500	27.5	45.2	4.8	26.0	80	140	240	\	0.2	0.25	0.32	\	0.8	0.9	1.3	\	51	52	56	\
GXⅢ20(1)	2000	37.8	58.3	6.6	28.3	80	240	310	\	0.32	0.45	0.55	\	1.3	1.9	2.0	\	56	57	58	\
GXⅢ25(1)	2500	45.7	70.5	7.9	36.8	80	220	300		0.32	0.45	0.55	\	1.3	1.9	2.0		58	58	58	\
GXⅢ30(1)	3000	56.6	90.5	9.8	37.9	140	200	300	\	0.45	0.55	0.55	\	1.9	2.0	2.0	\	58	58	58	\
GXⅢ40(1)	4000	74.8	127.0	12.9	11.8	180	230	330	\	0.75	0.75	1	\	2.3	2.3	3	\	58	60	60	\
GXⅢ50(1)	5000	93.3	158.5	16.1	17.2	160	260	380	\	0.75	1	1.3	\	2.3	3	3.4	\	60	62	62	\
GXⅢ60(1)	6000	112.2	184.6	19.4	19.3	220	290	370	450	1.5	1.5	2.2	2.2	3.67	3.67	4.9	4.9	56	57	58	60
GXⅢ70(1)	7000	131.2	214.3	22.6	26.8	220	290	370	450	1.5	1.5	2.2	2.2	3.86	3.67	4.9	4.9	59	60	61	62
GXⅢ80(1)	8000	150.2	248.5	25.9	28.7	220	290	370	450	1.5	2.2	2.2	2.2	3.67	4.9	4.9	4.9	59	59	60	61
GXⅢ90(1)	9000	171.5	279.5	29.6	34.6	220	320	420	520	2.2	2.2	3	3	4.9	4.9	6.5	6.5	62	62	62	63
GXⅢ100(1)	10000	187.5	301.5	32.3	44.7	220	320	420	520	2.2	3	3	4	4.9	6.5	6.5	8.56	63	63	64	65
GXⅢ120(2)	12000	224.1	372.8	38.7	49.0	220	320	420	520	3	4	4	5.5	6.5	8.56	8.56	11.6	59	61	63	65
GXⅢ150(2)	15000	281.4	433.3	48.5	61.2	220	320	420	520	3	4	5.5	5.5	6.5	8.56	11.6	11.6	64	64	65	67
GXⅢ180(2)	18000	337.6	519.9	58.2	56.7	200	300	400	500	4	5.5	5.5	7.5	8.56	11.6	11.6	15.3	65	65	66	67
GXⅢ200(2)	20000	374.9	577.4	64.6	61.6	200	300	400	500	5.5	5.5	7.5	7.5	11.6	11.6	15.3	15.3	66	67	68	69
GXⅢ240(2)	24000	449.9	692.9	77.5	60.8	200	300	400	500	5.5	7.5	7.5	11	13.0	16.8	15.3	21.9	66	66	67	68
GXⅢ270(2)	27000	506.1	779.3	87.2	60.0	300	400	500	600	7.5	11	11	11	16.8	21.9	21.9	21.9	69	69	70	71
GXⅢ300(2)	30000	565.2	870.4	97.4	59.4	300	400	500	600	7.5	11	11	11	16.8	23.9	21.9	21.9	68	69	69	70
GXⅢ350(2)	35000	656.0	1010.2	113.0	66.4	300	400	500	600	11	11	11	15	23.9	23.9	21.9	29.3	68	69	70	71
GXⅢ400(2)	40000	749.7	1154.5	129.2	66.4	300	400	500	600	11	11	15	15	23.9	23.9	29.3	29.3	71	72	72	73
GXⅢ450(2)	45000	843.5	1299.0	145.3	66.4	300	400	500	600	15	15	15	18.5	31.4	31.4	29.3	35.8	74	74	75	75

Refrigerating working condition of standard fresh air:Air inlet dry bulb temperature:35℃, air inlet wet bulb temperature: 28℃, water inlet temperature: 7℃,and water outlet temperature:12℃;

Heating working condition of standard fresh air: Air inlet dry bulb temperature: 7℃, water inlet temperature:60℃.

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