Scroll compressor ESH - ESH743-Y

With the extended ES series, BITZER has innovative scroll technology for applications in air conditioning systems and heat pumps. The compressors are distinguished by groundbreaking technical features and extraordinarily high energy efficiency. The range includes models with a rated motor power ranging from 7.5 to 15 PS for the refrigerants R134a, R407C, R404A, R507A and R22.

High output and efficiency bacause of optimised spiral geometry, high motor efficiency and precise manufacturing
Controlled contact pressure on both spirals – radial and axial
Optimal jointing between the compression chambers
Robustness during liquid slugging or if debris is sucked in

Performance data
Technical data

With R134a (Polyolester oil BSE35K required.)

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH743(B)(Y)	30	Qo	43050	39300	35950	32800	27100	22200	18040	14480
	30	Pe	5,41	5,35	5,30	5,26	5,20	5,16	5,14	5,12
	40	Qo	38900	35550	32400	29550	24400	19940	16140	12910
	40	Pe	6,60	6,58	6,56	6,53	6,48	6,43	6,39	6,38
	50	Qo	34550	31550	28800	26200	21600	17610	14220	11330
	50	Pe	8,15	8,14	8,12	8,09	8,03	7,99	7,99	8,06

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

With R407C (Polyolester oil BSE35K required.)

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH743(B)(Y)	30	Qo	63000	57700	52700	48150	39950	32950	26900	21750
	30	Pe	7,22	7,18	7,17	7,16	7,16	7,18	7,19	7,18
	40	Qo	56300	51600	47100	43000	35600	29250	23800
	40	Pe	9,17	9,17	9,17	9,17	9,19	9,20	9,17
	50	Qo	49450	45200	41300	37650	31100	25450
	50	Pe	11,75	11,76	11,76	11,76	11,75	11,70

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Saturated suction and discharge temperatures are based on dew point temperatures (according to EN 12900).

With R404A / R507A (Polyolester oil BSE35K required.)

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH743(B)(Y)	30	Qo				53600	45200	37950	31600	26200
	30	Pe				8,60	8,64	8,64	8,61	8,57
	40	Qo			50500	46500	39250	32950	27450	22650
	40	Pe			10,91	10,92	10,92	10,90	10,86	10,80
	50	Qo			42600	39250	33150	27800	23150	19070
	50	Pe			13,74	13,74	13,70	13,66	13,61	13,55

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Data are valid for R404A. Slight variations have to be considered for R507A

With R22

Compressor type	Cond.temp.	Qo / Pe	Saturated suction temperature °C
Compressor type	[°C]	Qo / Pe	12,5	10	7,5	5	0	-5	-10	-15
ESH743(B)(Y)	30	Qo	61900	56700	52200	48000	40450	33850	28100	23100
	30	Pe	7,66	7,62	7,59	7,57	7,57	7,59	7,62	7,64
	40	Qo	55800	51400	47300	43500	36550	30500	25150
	40	Pe	9,55	9,54	9,54	9,54	9,56	9,58	9,59
	50	Qo	50100	46100	42400	38900	32600	27050
	50	Pe	11,86	11,87	11,88	11,89	11,91	11,90

Qo - Cooling capacity [Watt], Pe - Power consumption [kW]

Compressor type	Dis place-ment 50 Hz	Oil charge	Weight	Pipe connections				Pipe connections Version “B”				Motor	Electrical Data
	Dis place-ment 50 Hz	Oil charge	Weight	Discharge line (DL)		Suction line (SL)		Discharge line (DL)		Suction line (SL)			max. workingcurrent	max. power con-sumption	Starting currentRLA
	m3/h	dm3	kg	mm	inch	mm	inch	mm	inch	mm	inch		Amp	kW	Amp
ESH743(B)(Y)	43	4,0	95	28	1 1/8	35	1 3/8	28	1 1/8	35	1 3/8	380..420VY/3/50Hz440..480V Y/3/60Hz	32	17,5	152

Scroll Compressors ESH - ESH743-Y

Scroll compressor ESH - ESH743-Y

With R134a (Polyolester oil BSE35K required.)

With R407C (Polyolester oil BSE35K required.)

With R404A / R507A (Polyolester oil BSE35K required.)

With R22