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CONTROLS
ICM Control Features and Applications Specications Replaces
By-Pass Timer
ICM175
• Designed to bypass a low pressure
switch or other device during startup
• Ideal for low ambient startups
• Key component for ”winter start” kits
• Helps to reduce nuisance lockouts
• Universal AC voltage operation
• Knob-adjustable time delay
• Epoxy-encapsulated circuitry
• Voltage: 18-240 VAC
• 1 amp maximum
• 10 amp inrush
• 40 mA minimum
• Frequency: 50-60 Hz
• Knob-adjustable time delay:
10-1,000 seconds
• Dimensions: 2” x 2”
• Mars: 32395
• Supco: TD32
Lockout Protection
ICM220
• UL 873 recognition as compressor
controller
• Low cost lockout relay
• Helps eliminate nuisance lockouts
typical of Series 84 and 93 impedance
relays
• Ideal for use with safety/interlock
switches
• Voltage: 18-30 VAC
• Frequency: 50-60 Hz
• Power consumption:
2 watts maximum @ lockout
• Relay: 1 form C
• Contacts: 2 amps @ 30 VAC
resistive
• Dimensions: 2” x 2”
• Essex:
Impedance Relays
Series 84 and 93
O Delay Timing Purges Residual Air
ICM253
• UL 873 recognition for compressor
applications
• Post-purge fan delay timer
• OFF delay purges ducts of residual air
at the end of the heating/cooling cycle
• Interrogation delay eliminates nuisance
trips due to thermostat bounce/tampering
• Voltage: 18-30 VAC
• 1 amp maximum
• 40 mA minimum
• 10 amp inrush
• Adjustable time delay:
• 12-390 seconds
• Dimensions: 2” x 3”
• Field Controls:
46144700
• Gemline: 1C216
• Mars: 32393
Timers and Voltage Monitors
ICM CONTROLS  TIMERS