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Emerson Climate Technologies
261
Oil Controls
OMB
Nomenclature example: OMB-JB1 ASC2 24 50/60
OMB JB1 ASC2 24 50/60
Oil Management
Control
JB1 - Junction Box
MO1 - Series
Relief Connector
Solenoid Coil Model
Number, Voltage, Frequency
(included)
The OMB is a compressor crankcase oil level protective control
ideal for use with Copeland Scroll
™
models ZF, ZB, ZR and ZS.
It is also recommended for Copeland
™
brand products, Carlyle,
Bitzer and other semi-hermetic compressors.
Features
• Precision oil level measurement for maximum protection
• Easy monitoring with alarm and status lights
• Foam resistant design prevents nuisance trips unlike
optical sensor designs
• Contaminant proof operation ensures accurate control
• Only approved oil level control for Copeland Scroll
Compressors
• 5-time lockout feature protects compressor from repeated
low oil level condition
• Self-contained unit with oil level sensor and integral solenoid to
manage oil level supply
• Reverse Hall-effect sensor for precise measurement of oil level
and protection from sensor magnetic debris contamination
• SPDT output contact for compressor shut-down and alarming
• Easy installation by sightglass replacement
• Adapters suitable for various types of scroll compressors (not
required for reciprocating compressors)
• UL Recognized (File Number# MP604)
• Flourescent oating ball
• Integral sight glass
• Debris retention magnet for reliable operation
Specifications
• Maximum working pressure: 870 psi
• Solenoid MOPD: 350 psi
• Supply voltage: 24 V AC, 50/60 Hz
• Solenoid coil: ASC 2L 24 V AC,
50/60 Hz
• Current consumption: 0.6A
• Time delay for low level signalling: 5-10 seconds
• Time delay for after setpoint recovery: 5-10 seconds
• Alarm delay time: 120 seconds
• Alarm switch: SPDT
• Alarm contact rating: 10A @ 125;
5A @ 220 V AC
50/60 Hz
• Refrigerant compatibility: HFC, HCFC, CFC
• Oil temperature: 180°F Max.
• Storage and transport temperature: 140°F Max.
• Operating ambient temperature: 120°F Max.
• Oil supply tting: 1/4” Male SAE
• UL/CUL le number: SA8547
• Transformer VA requirements*: 25”
*NOTE: Field supplied transformer should always be of the
same primary voltage as the electrical supply system.
Dimensional Data
Unit must be mounted horizontally
for correct operation.
Ordering Information
PCN DESCRIPTION
Oil Management Control
065365 OMB-JB1 ASC 2 24/50-60 - STD
065366 OMB-MO1 ASC 2 24/50-60 - STD
Service Parts
048638 Inlet Flare Screen
020877 Sight Glass O-Ring
064812 Mounting O-Rings (3 pieces)
049191 KS-30112 Solenoid Repair Kit