21
Flow Controls Parts
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 lever 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)
• Fluorescent oating ball
• Integral sight glass
• Debris retention magnet for reliable operation
OMB Series
Nomenclature example: OMB-JB1 ASC2 24 50/60
OMB JB1 ASC 2 24 50/60
Oil Management
Control
JB1 - Junction Box
MO1 - Series Relief
Connector
Solenoid Coil
Model
Number Voltage,
Frequency
(Included)
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
Adapters
(to attach OMB to Copeland Scroll
®
compressor
for new installation only)
065668
OMB-ACA ADAPTER (3/4” x 14 NPTF) Copeland
®
Glacier, ZF, ZS, ZB
065667
OMB-ACB ADPATER (1 1/8” x 12 UNF) Copeland
®
A/C ZR
066077
OMB-ACD ADAPTER (1 1/4” x 12 UNF) Copeland
®
A/C Summit Series
066078
OMB-ACE ADAPTER (1 3/4” x 12 UNF) Copeland
®
Specter Series
063521 OMB-AUA Copeland
®
6D Semi-Hermetic
065982
OMB-ASA Carlyle Compressors DA, DR, 5F, 5H,
06D and 06E
Service parts
048638 Inlet Flare Screen
020877 Sight Glass O-Ring
064812 Mounting O-Rings (3 pieces)
049191 KS-30112 Solenoid Repair Kit
Dimensional Data (mm):
60.2
62.0
98.3
2.3
2.3
OMB Crankcase Oil Level Protective Control
Specications
• Maximum working pressure: 640 psi
• Solenoid MOPD: 350 psi
• Supply voltage: 24 VAC, 50/60 Hz
• Solenoid coil: ASC 2L 24 VAC,
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 at 125;
5A at 220 VAC
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.