©Johnstone Supply eCatalog 216

REFRIGERATION & AIR CONDITIONING Timers

Commercial Defrost Timers • One to six defrost cycles per day, four hours between cycles • Cycle adjustable from four to 110 minutes, in two-minute increments • Positive switch action slider bar • Heavy-duty synchronous industrial type motor and steel enclosure • Knockouts on bottom, back and sides • Hasp and staple for padlock

• 40A electrical rating; choice of three contact arrangements • UL approved except G22-349 • 8040 Series are time initiated, time terminated with accuracy of defrost duration ± two minutes • 8140 Series are time initiated, remote temperature or pressure terminated and control works with an external temperature or pressure sensor

Each

Order #

Mfg. #

Volts

Switch Action 2 N.C.–1 N.O. 1 N.C.–1 N.O. 1 N.C.–1 N.O. 1 N.C.–2 N.O. 2 N.C.–1 N.O. 2 N.C.–1 N.O.

Description

G22-950 G21-503 G22-269 G22-270 G22-806 G22-953 G22-620 G21-505 G37-302 G37-303 G22-349

8041-00 120 8045-00 120

Off-Cycle Defrost Off-Cycle Defrost Off-Cycle Defrost Off-Cycle Defrost

395.00 345.00 285.00 419.00 355.00 355.00 339.00 275.00 225.00 175.00 175.00

8045-20 208/240 8047-20 208/240

8141-00 120

For Electric or Hot Gas Defrost For Electric or Hot Gas Defrost For Electric or Hot Gas Defrost For Electric or Hot Gas Defrost

8141-20 208/240

8145-00 120

SPDT SPDT

8145-20 208/240

G36-955 8145-20M —

— — — —

Mechanism Only

M1129-00 120 M1130-20 240 X-3596 —

Gear Motor Gear Motor

Extra Tripper Set

21.49

Commercial Defrost Timers • Replaces over 40 competitive models • Auto-voltage automatically adjust for 120 277V • Heavy duty 40 Amp rated contacts • LED indicators for defrost and refrigeration cycles

• Built-in protective housing • Mounts in existing enclosures no tools required • Real time clock for easy accurate settings

Order # Mfg. # Each G37-335 8145-AV 120-277 NEMA 1 Metal Enclosure, Electric, Hot Gas, and Compressor Off Cycle 319.00 G37-336 8145-AV-M 120-277 Mechanism Only, Electric, Hot Gas, and Compressor Off Cycle 269.00 Volts Description

Universal Commercial Defrost Timers • Multi-voltage automatic adjustment for 120, 208 or 240V, no jumpers or dip switches required • Up to 12 defrost cycles per day, 15 minutes between cycles • Lighted electronic display with touchpad adjustments

• Easy set-up with 15-minute manual defrost • Real time clock • 100 hours of power loss protection • Metal enclosure • Switch rating: 30A resistive, 1HP @ 120VAC, 2HP @ 240VAC

Each

Order # Mfg. #

Volts

Description

G32-825 9045-00 120/208/240 Time Initiated/Time Terminated

405.00 405.00

G32-826 9145-00 120/208/240 Time Initiated/Time, Temperature, Pressure Terminated

Electronic Defrost Control • Combines functionality of electromechanical thermostat and time clock, thermometer and termination switch • Provides defrost scheduling, and termination based on time or temperature, sensor fail-safe modes and temperature indication • Control buttons can be locked to prevent tampering • Programmable alarms for high or low case temperature, cooler door open, and sensor failure

• Alarm relay can connect to a dial-out modem for remote reporting • Minimizes compressor wear through built-in short cycling delay • Precision control of evaporator fan provides maximum benefit of cooling and defrost cycles • Voltage: 120VAC or 240VAC • Accuracy: ±1.8°F (±1°C) • Includes two A99BB-200C 6.5 foot sensors ( L38-717 ) Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Each

Order #

Mfg. #

Description

L38-724

MR4PMUHV-12C

Electronic Defrost Control

1045.00

1313

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