Bitzer 4GEH-30, Reciprocating compressor, Semihermetic, 4 Cylinders

Use this catalogue to identify the spare parts you need to repair your compressor. The OEM catalogue is crossreferenced with our spare parts database, matched items are highlighted. Some of our existing spare parts may not be shown because our database is incomplete (e.g. missing OEM P/N), or because we sell the items separatelly (typical example is the piston-connecting rod assembly). If you have any doubt please ask us.

All OEM manufacturer's names, part numbers, diagrams, products description and information are provided for reference and identification purposes only, and it is not implied that any part listed is the product of the OEM manufacturer.

Compressor description by Ralkin

General ECOLINE H Series Description:

The ECOLINE H series represents a creative advancement of Bitzer's proven, robust, and powerful semi-hermetic reciprocating compressor range. It combines high efficiency, smooth running, a wide range of applications, and high reliability. This series acts as a specialist for demanding conditions, such as high-temperature heat pumps and transport applications, and is equipped with an additionally reinforced drive gear and lubrication system. Key technical features include a new valve plate design with a geometric concept for low rear expansion, efficient broadband motors, and the CRII capacity control system. The series is downward compatible, replacing predecessors while maintaining the same connection sizes.

### Model Identification

Based on the requested model 4GEH-30 (identified as 4GEH-30Y in the technical data):

4: Number of cylinders.
GE: Identification for bore x stroke.
S: ECOLINE series identifier.
H: Special design for transport applications and high-temperature heat pumps (equipped with reinforced drive gear and lubrication system).
30: Motor size.
Y: Oil charge identifier (polyolester oil).

### Technical Features:

Lubrication: Specialized lubrication system designed for demanding conditions, including transport refrigeration and high-temperature heat pumps.
Drive Gear: Reinforced drive gear with a new piston and connecting rod design.
Valve Plate: New geometric concept for pressure valves ensuring low rear expansion for high cooling capacity with minimal energy requirements.
Motor: Efficient broadband motors suitable for full- and part-load operations.
Capacity Control: The CRII system allows intermittent blocked suction, providing a control range of 100% to ~10%.
Compatibility: Downward compatible with predecessor models in terms of outer contour and connection sizes.

### Specifications & Data:

Displacement at 50 Hz: 84.6 m³/h
Heating Capacity (Qh): 71.50 kW (rated at R515B with tₑ/t꜀ = 30°C/85°C)
Oil Charge: 4.5 dm³
Weight: 209 kg
Max. Operating Current (Part-Winding Motor): 51.2 A
Primary Refrigerants: R1234ze(E), R515B, R245fa
Primary Oil Charge: Polyolester oil BSE85K

Item num.	Ralco P/N	OEM P/N	Description (from OEM manufacturer)
1		00000009	Upon request.
2	BRG23100	31113502	Bearing bush / Slide bearing; dimensions: Ø50 × Ø45 × 40 (Radial); from year: 1.
3	BRG23100	31113502	Bearing bush / Slide bearing; dimensions: Ø50 × Ø45 × 40 (Radial); from year: 1.
4	WAS2001	32050006	Thrust washer; dimensions: Ø62 × Ø48 × 1,7; from year: 1.
5	WAS2001	32050006	Thrust washer; dimensions: Ø62 × Ø48 × 1,7; from year: 1.
6	CKS2020	30100707	Crankshaft.
7	PLU23040	36611201	Plug; dimensions: M8×1; from year: 6.
9		30229917	Piston; dimensions: Ø75.
10	ROD2000	30211552	Connecting rod; dimensions: Ø45 × Ø20 × 112.
15		30272301	Piston; dimensions: Ø75; from year: 9.
16	PIN2000	38340106	Wrist pin; dimensions: Ø20 × Ø13 × 56; from year: 15.
17	SNPCMIX020	38223104	Retaining ring with lugs; dimensions: Ø20 × 1; from year: 15.
18	SGM2030	38230058	Piston ring; dimensions: Ø75 × 1,5 (ISO 6622); from year: 9,15.
19	SGM2031	38231025	Piston ring; dimensions: Ø75 × 1,5 (ISO 6622); from year: 8,15.
24	GKT2036	37231403	Gasket; dimensions: Ø182 × Ø133 × 1; from year: 25,171.
25		30512507	Bearing cover.
26	VSG2008	36110101	Pressure control valve; dimensions: 3/4" - 14 NPTF (3,2 bar); from year: 25.
30	BRG23100	31113506	Bearing bush / Slide bearing; dimensions: Ø50 × Ø45 × 40 (Radial); from year: 25.
31	WAS2000	32050007	Thrust washer; dimensions: Ø62 × Ø48 × 1,7; from year: 25.
32	BLTCMA10X030	38030632	Cheese-head screw; dimensions: M10 × 30; from year: 25.
34	PMP2001	36250302	Oil pump; from year: 25.
35	RNG2019	37200119	O-ring (CR); from year: 25,171.
36		38015505	Hexagon head screw; dimensions: M8 × 20; from year: 25.
37		38033901	Cheese-head screw; dimensions: M10 × 30.
38		32031401	Fixing plate; dimensions: 140 × 40 × 3.
39	LCKCMG04	38200201	Washer; dimensions: A4,3 (brass).
40		00000001	Article cancelled; used in: 2.
41	BLTCMA4X008T	38040156	Cheese-head screw; dimensions: M4 × 8.
42		34732034	Differential oil pressure cut-out (without time relay 115/230 V - 1 - 50/60 Hz).
43		36150022	Schrader valve; dimensions: 1/8" - 27 NPTF × 7/16" - 20 UNF.
48	WAS2009	37402703	Shaft seal.
49	KEY2010	38410201	Gib-headed key; dimensions: 5 × 5 × 60 (steel).
50	SPRCM10X12	38035801	Set screw; dimensions: M10 × 12.
51	KEY2040	38400124	Parallel key; dimensions: 12 × 8 × 125 (steel DIN 6885 - A).
52		000000012	Not intended for this type.
54		32050210	Washer; dimensions: 16,5 × 54 (steel).
55	SPGCMW16	38215004	Thrust washer; dimensions: S16 (spring steel).
56		38016613	Hexagon head screw; dimensions: M16 × 75 (ISO 4017 - M16 × 75 - 10.9).
58	SRN2002	32591001	Retaining ring with lugs; dimensions: Ø230.
59	SRN2000	36200402	Suction gas filter; dimensions: Ø220 × 50.
60	GKT2011	37231503	Gasket; dimensions: Ø286 × Ø236 × 0,38; from year: 171,300,330,415.
61		30590003	Housing cover.
63		36610121	Plug; dimensions: 1/4" - 18 NPTF (brass).
65		38005711	Hexagon head screw; dimensions: M12 × 150 (DIN 931 - M12 × 150 - 10.9).
66		38005714	Hexagon head screw; dimensions: M12 × 180 (DIN 931 - M12 × 180 - 10.9).
67	GKT2023	37230103	Gasket; dimensions: Ø76 × Ø60 × 1; from year: 171.
71		38001943	Hexagon head screw; dimensions: M16×105 - 8.8.
72	GRF2504	36133804	Shut-off valve; dimensions: Ø54 (2 1/8").
73		36532103	Brazing and welding bush; dimensions: Ø54 (2 1/8") (steel); from year: 72.
74	GKT02609	37230302	Gasket; dimensions: Ø75 × Ø61 × 2; from year: 72,171.
75		36712102	Counter flange; dimensions: 110 × 110; from year: 72.
76	BLTCMA16X055	38010909	Hexagon head screw; dimensions: M16 × 55; from year: 72.
78		36620122	Protective cap; dimensions: M27×2 // L=70 (plastic - GRP).
79		36611002	Plug; dimensions: 1/4" (steel); from year: 72.
82		36611424	Sealing screw; dimensions: M26.
84		32500034	Pressure spring.
85	SRO2000	36200301	Oil filter; dimensions: Ø20 × 200.
86	VSG2050	36011006	Oil return system.
87		36611002	Plug; dimensions: 1/4" (steel).
88	RNG2012	37200315	O-ring (CR); from year: 171,330,415.
89	GLS2000	36180202	Sight glass; dimensions: Ø67 × 8,5.
90	VSG2102	36120401	Check valve; dimensions: M14×1,5.
91	BLTCMA6X020	38015406	Hexagon head screw; dimensions: M6 × 20.
92		36611010	Plug; dimensions: 1/2" - 14 NPTF (steel).
93	PLU2000	36611005	Plug; dimensions: 3/4" - 14 NPTF (steel).
94	GKT2008	37241501	Gasket; dimensions: 270 × 250 × 1; used in: 2; from year: 171,330,415.
95		32030704	Bottom plate; dimensions: 270 × 360 × 12.
96	BLTCMA10X030	38017802	Hexagon head screw; dimensions: M10 × 30.
97	AMR2000	37000401	Kit damper elements; dimensions: Lo=42 (spring).
97		37000201	Kit damper elements (Shore hardness 50 // elastomer).
99		37000203	Kit damper elements (Shore hardness 65 // elastomer).
99	AMR2001	37000403	Kit damper elements; dimensions: Lo=48 (spring).
101		32730901	Foot; dimensions: 369 × 60 × 13 × Ø21.
102	BLTCMA10X025	38015605	Hexagon head screw; dimensions: M10 × 25.
103	VSG2004	36111003	Gas equalising valve; dimensions: G1/2".
104	VSG23001	36111006	Pressure relief valve; dimensions: 3/4" - 14 NPTF (37 bar).
105	GKT2031	37270401	Gasket; dimensions: Ø31 × 1,0 (LA66); from year: 171,330.
106		36701515	Blind flange; dimensions: 91 × 52 × 13 - 1/8" - NPTF.
107	BLTCMA10X030	38015606	Hexagon head screw; dimensions: M10 × 30.
108	GKT2031	37270401	Gasket; dimensions: Ø31 × 1,0; from year: 171,330.
109	BLTCMA10X030	38034006	Cheese-head screw; dimensions: M10 × 30.
110		36135318	Shut-off valve; dimensions: DN25.
110	GRF2377	36131577	Shut-off valve; dimensions: Ø28.
113		36600602	Kit pipe connection (steel); from year: 110.
114	GKT1017T	37220004	Gasket ring; dimensions: Ø38 × Ø35 × 1,5 (PTFE); from year: 110.
116		36620119	Protective cap; dimensions: M24×2 // L = 57,5 (plastic - GRP); used in: 2.
118	PLU75022	36611001	Plug; dimensions: 1/8“ - 27 NPTF (steel).
119	PLT2E030	30406334	Valve plate; dimensions: Ø75.
120	GKT2030	37251111	Gasket; dimensions: 253 × 155 × 1,0 - Ø75; from year: 119,171,330.
121	GKT2050	37261603	Gasket; dimensions: 253 × 155 × 0,5 (metallic support); from year: 119,122,171,330.
122	HED23036	30236038	Cylinder head; dimensions: 253 × 155 × 68.
123		38005614	Hexagon head screw; dimensions: M10 × 70.
124		38001965	Hexagon head screw; dimensions: M10 × 90 (ISO 4014 - M10 × 90 - 10.9); used in: 2.
131		38304205	Parallel pin; dimensions: Ø6 × 18 (steel); used in: 2.
132	SPRCM10X12	38035801	Set screw; dimensions: M10 × 12.
134	TER2000	34341602	Terminal plate; dimensions: 165 × 120 × 15,5.
135	GKT2039	37242115	Gasket; dimensions: 163 × 118 × 1; from year: 134.
138		38000453	Hexagon head screw; dimensions: M6 × 35; from year: 134.
139	GKT21401	37212403	Gasket; dimensions: 165 × 120 × 3; used in: 2.
142	TER2E010	34550624	Terminal plate; dimensions: 165 × 120 × 15,5 (6-wire); used in: 2; from year: 134.
143		38110801	Hexagon nut; dimensions: M5; from year: 134.
147	SPGCMW8	38215201	Thrust washer; dimensions: S8; from year: 134.
150	NUT7210	38130105	Hexagon nut; dimensions: M8; from year: 134.
160		34343004	Kit connection bridge; from year: 134.
161	BLTCMA10X020	38030689	Cheese-head screw; dimensions: M10 × 20.
162	PLC201	32120201	Centring plate; dimensions: 167 × 122 × 12.
163	GKT2090	37212001	Gasket; dimensions: 133 × 117 × 2; from year: 171,330,415.
164		34540510	Terminal box; dimensions: 313 × 175 × 95 (aluminum).
166		38051002	Oval head screw; dimensions: M5 × 16 - 4.8-H.
167		00000003	Not available separately; from year: 164.
168		34702804	Compressor protection device (24 V - 50/60 Hz).
168		34702805	Compressor protection device (24 V - DC).
168	SEN2101	34703504	Compressor protection device (110/230 V - 50/60Hz); used in: 2.
168	SEN2101	34703504	Compressor protection device (110/230 V - 50/60Hz); used in: 2.
169	BLTCMA4X008T	38050752	Oval head screw; dimensions: M4 × 10.
170	BLT23154	38050154	Oval head screw; dimensions: M6 × 16.
171	KIT2000	37281104	Gasket set.
172	MTR2030	34631846	Built-in motor; dimensions: Ø223 (40P 30 HP).
175	GKT21401	37212401	Gasket; dimensions: 165 × 120 × 3.
176		37213802	Gasket; dimensions: 299 × 161 × 2.
190	HTR2000	34321312	Oil heater (230 V - 1 - 50/60 Hz -140 W); used in: 2.
191		38901902	Electric connector of the device; used in: 2.
192	HTR2001	34590602	Heater sleeve; dimensions: 3/8" - 18 NPTF × 236.
193	PLU75022	36611001	Plug; dimensions: 1/8“ - 27 NPTF (steel).
194		34400604	Cable; dimensions: M6 // M8 × 220.
195		38050152	Oval head screw; dimensions: M6 × 12.
196	WAS2E115	38210154	Toothed washer; dimensions: A6,4 (spring steel galvanized).
197	GKT23006A	38240301	Gasket ring; dimensions: A20 × 24 × 1,5 (aluminum); from year: 198.
198		34731911	Differential oil pressure cut-out (115..230 V - 50/60 Hz).

Bitzer 4GEH-30, Reciprocating compressor, Semihermetic, 4 Cylinders

Compressor description by Ralkin

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