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Piston Medium Four-cylinder T-series BTF4VCS-10.3G

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BOUNDARY DIMENSION ANDLOCATION DIMENSION OF BORE DIAMETER SUCTION GAS PORT AND DISCHARGE GAS PORT

Suction and exhaust valve connection size (mm)

Type	①
Type	BTF4VCS-10.3G
SL	28(11/8“)
DL	22(7/8”)

Single compressor connection positions

1	High pressure connection(HP)
2	Exhaust Temperature Sensor Connector
3	Low pressure connection(LP)
4	Electronic hydrojet(LP)
5	oil fill plug
6	Oil drain
8	il return (oil separator)
9	Crankcase heater
SL	Suction gas line
DL	Discharge gas line

图中①..⑤表示对型号压缩机尺寸

Figure ① ...⑤ indicates the size of the compressor

FEATURES & ADVANTAGES

3.Generation Piston

The new body is optimized in structure design, with a novel appearance and high structural strength, improved durability with cylinder bore hardening process.

The new cylinder head is optimized in structure design, reducing exhaust pulses andlowering operating noise.

The new valve plate is optimized in structure design, improving exhaust efficiencyand enhancing shock resistance.

The new motor is optimized in structure design, improving operational efficiency,increasing overload capacity,and expanding the operating range.

The new bearing is optimized in structure design, increasing lubrication effectivenessand reducing the risk of shaft seizure.

The new piston optimizes the piston structure and reduces the clearance volume..Thinner piston ring design reduces friction loss.

ASSEMBLY PARTS

▲ Standard accessories

▪KRIWAN Electronic Oil Pressure Differential SwitchK▪RIWAN Motor Protection Modules▪Temperature Sensor

▲ Optional accessories

▪Capacity Control

The four-cylinder models have 50% and 100% two

stages loading adjustable The six-cylinder models

have 34%,67% and 100% three stages loading adjustable.

▪Cylinder Head Fan

Physical cooling

TECHNICAL PARAMETER

Compressor type	Nominal motor power (HP/kW)	Displacement (50Hz)m/h	Number of Cylinder xDiameter xStroke (mm)	Oil injection volume (L)	Power supply (V/φ/Hz)	Electrical parameter		Crankcase Heater(220V) (W)	Oil supply method	Weight (including freezing oil)(Kg)
						Max operating current (A)	Starting current /rotorlocked current operating current (A)
BTF4VCS-10.3G	10/7.5	34.73	4xφ55x42	2.6	PW 380~420YY/3/50 400~480YY/3/60	21	59/99	120	Forced-lubrication	127

PERFORMANCE PARAMETER (R22)

Fregency 50 hz

Relating to 20'C suction gas temperature

Without liquid subcooling

Compressor type	Cond temp（℃）	Qo(kw) Pe(kW)	Qo (kw) Cooling capacity Pe (kW) Power consumption
			Evaporating temperatue (C )
			12.5	10	7.5	5	0	-5	-10	-15	-20	-25	-30	-35	-40
BTF4VCS-10.3G	30	Qo	48.1	44.01	40.2	36.65	30.26	24.74	20	15.94	12.48	9.55	7.07
	30	Pe	6.05	6.14	6.18	6.19	6.12	5.92	5.62	5.24	4.79	4.29	3.76
	40	Qo	43.28	39.54	36.05	32.79	26.95	21.9	17.57	13.88	10.74	8.09	5.87
	40	Pe	7.71	7.67	7.61	7.51	7.22	6.83	6.35	5.8	5.19	4.55	3.9
	50	Qo	38.44	35.06	31.89	28.95	23.65	19.09	15.18	11.85	9.03	6.66
	50	Pe	9.22	9.07	8.9	8.69	8.2	7.62	6.96	6.25	5.49	4.72

Note for the operation issues.please check the technical measures of application range.

PERFORMANCE PARAMETER (R404A / R507A)

Fregency 50 hz

Relating to 20'C suction gas temperature

Without liquid subcooling

Compressor type	Cond temp（℃）	Qo(kw) Pe(kW)	Qo (kw) Cooling capacity Pe (kW) Power consumption
			Evaporating temperatue (C )
			7.5	5	0	-5	-10	-15	-20	-25	-30	-35	-40	-45
BTF4VCS-10.3G	30	Qo	44.57	40.69	33.71	27.68	22.5	18.09	14.35	11.2	8.57	6.38	4.55
	30	Pe	7.16	7.13	6.98	6.69	6.31	5.84	5.3	4.72	4.12	3.52	2.93
	40	Qo	37.8	34.45	28.4	23.17	18.69	14.87	11.65	8.96	6.73	4.89	3.38
	40	Pe	8.69	8.53	8.13	7.62	7.02	6.37	5.67	4.94	4.22	3.51	2.85
	50	Qo	30.92	28.11	23.05	18.67	14.91	11.72	9.04	6.82	4.99	3.51	2.32
	50	Pe	10.04	9.76	9.12	8.39	7.61	6.78	5.93	5.08	4.25	3.46	2.73