Bitzer 110V Cold Room Refrigeration Compressor Racks

Wide Range of Options

Compressor Unit	Refrigeration Capacity	Evaporating temperature
Piston type single-stage parallel unit	20HP~350HP	7.5ºC~-45ºC
Piston type Two-stage parallel unit	16HP~180HP	-25ºC~-65ºC
Screw type single stage parallel unit	80HP~600HP	5ºC~-45ºC
Screw type double-stage parallel unit	100HP~600HP	-30ºC~-65ºC

Adopted to multiple refrigerant R404a, R507, R407C, R22.
Stable & Reliable Performance
· The units are equipped with world famous brand high quality compressor and components, following the latest design, the perfect combination provides a safe and reliable system.
· The unit comes standard with a controller that can effectively avoid turning on/off the motor frequently as well as safety protection modules including the following: Phase loss protector, Inverted sequence, overvoltage protector, undervoltage protector, oil pressure, high pressure, low pressure, motor overload.
· High efficiency oil separating system. When power is on, there is no need to add lubricating oil, the standard provided oil heater (for screw unit), oil temperature controller (for screw unit) and oil level switch (for screw unit), etc. can protect the function.
· The PLC controller is a standard provided component. It can automatically decide the compressor quantity to be used based on actual need of refrigerant capacity, average the running time between each compressor, save the power. All of these will guarantee an over 30% longer usage than single compressor condensing unit.
· It has a unique low environment condensing pressure monitor system which guarantees a stable functioning when there is a low ambient temperature, lack of oil feeding or oil flow warnin
· High efficiency gas liquid separator is used, with a unique pipeline design, it can effectively minimize the possibility of liquid strike. 
· The "Pressure Vessel Certificate" approved reservoir is provided as well as the safety relief valve.
· Fault isolation device is served so that when a certain compressor breaks down, the rest of the unit can keep running appropriately, making sure that client has enough time for repair and replacement.
High efficiency & energy saving
· Because of a huge demand difference between seasons for refrigerating capacity, the unit must have a high level control for capacity, so that the unit can keep running under high efficiency mode. The average parallel unit efficiency, according to different refrigeration system is 30% higher than single compressor unit.
· Using multiple compressor parallel units can provide a multiple energy level control, the refrigeration output can be dynamically allocated more smoothly according to actual situation.
· With high efficiency oil separator, only a small amount of lubricating oil enters the system, this largely brings up the heat exchanging efficiency.
· The PLC controller monitors running compressors quantity, it maintains a maximum use rate even when only parts of the compressors are functioning.
· PLC controller can be set with the best running curve (maximum & minimum power comsuption), to same as much electricity as possible.
· With "modularized design" the risk during construction can be largely reduced, construction period can be shortened, improve the product quality controllability.
Compact & Nimble Structure
· Components such as compressor, reservoir, gas-liquid separator, oil separator, economizer, intake manifold, fluid supply manifold, electrical control equipment are all centralized, making sure every inch of the space is fully used.
· The unit has a compact structure, the space saved during assembly can provide more space for commercial use, benefiting the end user with extra profit.
Easy operation & convenience
· With PLC safety auto control, client can program with touch screen, the graphical control interface can intently show the running status, recording data, parameter settings and false alarming, easy for operation.
· The reserved remote communication interface can help customer to monitor remotely.
· Thanks to the print output interface, customer can print the running history data of the unit and the system.
 
  

Screw parallel unit standard configuration
Parallel unit component		6.Economizer assembly (applies when evaporating temperature ≤-20ºC)
Sturdy metal chassis		Economizer
Lifting ring		ECO expansion valve, ECO solenoid valve, ECO liquid sight glass, ECO off-valve
cushion
		7.Gas-liquid separator
Reservoir assembly
Reservoir has 28 bar safety valve		8. Compressor unit electric control & protection assembly
Reservoir inlet/outlet cut-off valve		Compressor high-low pressure controller
Reservoir sight glass		Compressor oil flow controller
Pipeline liquid sight glass		Electronic overcurrent protection
Reservoir outlet filter barrel drier,  contains filter.		Low pressure sensor
Filter drier barrel outlet has shut-off valve		Independent circuit breakers and thermal protector
		PLC controller and color touch screen
Exhaust gas assembly
External oil separator(contains oil glass)		9. Fluid supply manifold and return manifold assembly
Oil separator outlet backstop shut-off valve.		Fluid supply manifold and return manifold quantity in accordance with product catalog
Oil separator outlet off-valve		Manifold adopts hard straight pipe.
Oil heater
Oil temperature controller		10.     Other
Oil level controller		Compressor pressure gauge
		Repair valves are mounted on each manifold
4.  Oil line assembly		Insulation materials for suction, economizer and cooling tube
Oil line outlet filter barrel, contains filter		Compressor unit suction off-valve
Oil line ball valve
Oil line solenoid valve		11.      Optional configures
Oil line sight glass		Refrigerant R22 or R404a
Electronic oil flow switch		Reservoir can be vertical or horizontal
		Fluid supply manifold shunt and return manifold shunt
Single compressor assembly		Cooling type: air cooled, water cooled, evaporative cooled.
Suction and discharge off-valve		Oil cooling: air cooled, water cooled, thermo siphon cooled
Discharge backstop valve		Other brand compressor and configurations
Compressor cushion
Suction filter barrel, contains filter.		12. Components that can be added
First stage liquid spray cooling system		Compressor exhaust muffler
Oil sight glass		High pressure sensor.
		Condensing pressure regulating valve
		Heat recovery device.
		Hot gas defrost function
		Frozen oil

Low temperature screw type parallel unit
Refrigerating capacity and power are set based on condensing temperature 35ºC, used for evaporation condensation
 

(OBBL) Rack model				2-100J	2-150J	2-200J
Evaporating temperature				-30ºC-60ºC
Refrigerant				R404A
Power				380V/50HZ
Compressor	Type			Semi hermatic screw type (double screw)
	SRL Model			220E	330E	450E
	Qty			2	2	2
Refrigerating capacity & power	Evap. Temp. -40ºC		QoW	136660	198820	269780
			PeKW	77.96	113.4	153.9
	Evap. Temp. -50ºC		QoW	87180	126840	172120
			PeKW	64.52	93.86	127.36
	Evap. Temp. -60ºC		QoW	52340	76160	103360
			PeKW	54.94	79.94	108.44
Connector	Air inletmm			133	133	159
	Liquid outletmm			45	57	57
	Air outletmm			89	89	108
	Liquid inletmm			57	76	76
Overall dimension		L(mm)		2600	2600	2600
		W(mm)		1400	1780	1950
		H(mm)		1811	1961	1997

 
 

(OBBL) Rack model				3-150J	3-225J	3-300J
Evaporating temperature				-30ºC-60ºC
Refrigerant				R404A
Power				380V/50HZ
Compressor	Type
	SRL Model			220E	330E	450E
	Qty			3	3	3
	40ºC		QoW	204990	298230	404670
			PeKW	116.94	170.1	230.85
	50ºC		QoW	130770	190260	258180
			PeKW	96.78	140.79	191.04
	60ºC		QoW	78510	114240	155040
			PeKW	82.41	119.91	162.66
	Air inletmm			159	159	219
	Liquid outletmm			57	76	76
	Air outletmm			89	108	133
	Liquid inletmm			76	76	89
Overall dimension		L(mm)		3400	3400	3400
		W(mm)		1400	1780	1950
		H(mm)		1811	1961	1997

 
 Low temperature screw type parallel unit
Refrigeration amount and power are set based on condensing temperature of 35ºC, used for evaporation condensation.
 

(OBBL) Rack model				4-200J	4-300J	4-400J
Evaporating temperature				-30ºC-60ºC
Refrigerant				R404A
Power				380V/50HZ
Compressor	Type			Semi hermatic screw type
	SRL Model			220E	330E	450E
	Qty			4	4	4
	40ºC		QoW	273320	397640	539560
			PeKW	155.92	226.8	307.8
	50ºC		QoW	174360	253680	344240
			PeKW	129.04	187.72	254.72
	60ºC		QoW	104680	152320	206720
			PeKW	109.88	159.88	216.88
	Air inletmm			2*125	2*159	2*159
	Liquid outletmm			76	76	76
	Air outletmm			133	133	133
	Liquid inletmm			89	89	89
Overall dimension		L(mm)		4200	4200	4200
		W(mm)		1400	1780	1950
		H(mm)		1811	1961	1997