Scroll compressor ESH Tandem - 2 x ESH725(B)Y

BITZER offers kits for tandem units for parallel operations. They consist of two compressors connected in parallel and provide significant benefits over individual compressors with the same output. The compound compressor units are distinguished by groundbreaking technical features, extraordinarily high energy efficiency and reliability.

Efficient capacity control through pairs of compressors with equal and unequal displacements
Optimised pressure and suction pipe arrangement in combined compressor unit
Reliable oil and gas equalisation
Solid frame construction for low vibration levels
Compressor with Rotalock or direct brazing connections
Suitable for the refrigerants R134a, R407C, R404A, R507A and R22

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
2 x ESH725(B)Y	30	Qo	50100	45800	41800	38100	31500	25800	21000	16850
	30	Pe	6,29	6,22	6,16	6,12	6,05	6,00	5,97	5,96
	40	Qo	45150	41300	37650	34300	28300	23200	18770	15020
	40	Pe	7,68	7,65	7,63	7,60	7,53	7,47	7,43	7,41
	50	Qo	40100	36650	33400	30450	25100	20500	16530	13180
	50	Pe	9,47	9,46	9,44	9,41	9,34	9,29	9,29	9,37

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
2 x ESH725(B)Y	30	Qo	73200	67000	61300	56000	46500	38300	31300	25300
	30	Pe	8,39	8,35	8,33	8,32	8,33	8,35	8,36	8,35
	40	Qo	65500	59900	54800	50000	41400	34050	27700
	40	Pe	10,67	10,66	10,66	10,67	10,69	10,69	10,67
	50	Qo	57500	52600	48000	43800	36150	29600
	50	Pe	13,67	13,67	13,67	13,67	13,66	13,60

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
2 x ESH725(B)Y	30	Qo				62300	52500	44100	36800	30450
	30	Pe				10,00	10,04	10,05	10,02	9,96
	40	Qo			58700	54100	45650	38300	31900	26350
	40	Pe			12,69	12,70	12,70	12,68	12,63	12,56
	50	Qo			49550	45650	38550	32350	26900	22200
	50	Pe			15,98	15,97	15,94	15,88	15,82	15,76

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
2 x ESH725(B)Y	30	Qo	71900	66300	61100	56200	47350	39600	32900	27050
	30	Pe	8,90	8,86	8,82	8,80	8,80	8,83	8,86	8,89
	40	Qo	65300	60200	55400	50900	42800	35700	29500
	40	Pe	11,10	11,09	11,09	11,09	11,12	11,14	11,15
	50	Qo	58600	54000	49650	45600	38200	31700
	50	Pe	13,79	13,81	13,82	13,83	13,85	13,84

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

Compressor type	Dis place-ment 50 Hz	Oil charge	Weight	Pipe connections				Motor	Electrical Data			Assembly kit no.
	Dis place-ment 50 Hz	Oil charge	Weight	Discharge line (DL)		Suction line (SL)			max. workingcurrent	max. power con-sumption	Starting currentRLA	Rotalock version	Version "B"
	m3/h	dm3	kg	mm	inch	mm	inch		Amp	kW	Amp	Rotalock version	Version "B"
2 x ESH725(B)Y	50	8,0	178	28	1 1/8	42	1 5/8	380..420 V/3/50 Hz 440..480 V/3/60 Hz	2 x 17	2 x 9,8	2 x 95	35810101	35810201

Scroll Compressors ESH Tandem - 2 x ESH725(B)Y

Scroll compressor ESH Tandem - 2 x ESH725(B)Y

With R134a (Polyolester oil BSE35K required.)

With R407C (Polyolester oil BSE35K required.)

With R404A / R507A (Polyolester oil BSE35K required.)

With R22