Product Overview

ManualsBrandsParagon ManualsDefrost TimersAuto Voltage Defrost Timer Mechanism Only

AUTO VOLTAGE

DEFROST

TIMERS

8000

SERIES

Features and Benefits

• Replacesover40competitivemodels

• Autovoltageautomaticallyadjustsfor120-277VAC

• Compressorcontacts3HP

• Heater/fancontacts2HP

• LEDindicatorsfordefrostandrefrigerationcycles

• Built-inpermanenthousingprotectscomponentsfrom

damage

• Mountsintoexistingenclosures,notoolsrequired

• Real-timeclockfaceforeasyaccuratesettings

• Defrosttimesprogrammablein15-minuteintervals

withcaptivetrippers

• Heavy-dutysteelenclosurewithknockouts(onthe

bottom,backandside)andhasp

• Mechanismonlymodelavailable8145-AV-M

TheParagon®8000SeriesAutoVoltageDefrostTimerisdesigned

forcommercialfreezersandrefrigerators.ParagonDefrostControls

haveprovidedreliableautomaticdefrostcapabilityfordecades.

Theyaccommodatevarioustypesofdefrostsystemsincluding

electricdefrostheaters,hotgas,andcompressoroffcycle.

Thisall-in-oneautovoltagedefrosttimerreplacesover40

competitivevoltage-specificmechanicaldefrosttimers,eliminating

theneedforaseparateshortcycletimerandsingle-phasevoltage

monitor.The8145-AVwillbecomeamainstayinanycontractor’s

truck.The8145-AVreducesinstallationtimeandminimizesthe

numberofSKUstostock.

Year

Limited

Warranty

Listed

Product

Summary of content (8 pages)

PAGE 1
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES The Paragon® 8000 Series Auto Voltage Defrost Timer is designed for commercial freezers and refrigerators. Paragon Defrost Controls have provided reliable automatic defrost capability for decades. They accommodate various types of defrost systems including electric defrost heaters, hot gas, and compressor off cycle.
PAGE 2
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES Ratings Terminal 3 and 5 Replacement Information 40A Resistive 120-277V AC Supco® 3HP Motor 240V AC 1.
PAGE 3
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES Wiring Diagrams 8145-AV NO Contacts (Terminal 3 & 5) NC Contacts (Terminal F & 2) 40A Resistive 120-240V AC (or 277V AC) 30A Resistive 120-240V AC (or 277V AC) 3HP Motor 240V AC 2HP Motor 240V AC 1.5HP Motor 120V AC 1/4HP Motor 120V AC 720VA Pilot Duty 120-240V AC 290VA Pilot Duty 120-240V AC Applying power (24-277V AC) between Terminate Input terminals “X” and “C” causes the unit to return to Refrigeration Mode.
PAGE 4
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES Wiring Diagrams 8045-00 and 8045-20 Electric Heat Defrosting 8145-AV H (L/L1) N (N/L2) 8045-00 8045-20 N (L/L1) DTAV40 1-N (L1) F 3 COMP 1 (L/L1) X (N/L2) 4 X (L2) 2 5 HEATER 4 (L/L1) N (L/L1) 3 N (L/L1) 4 1-N (L1) 3 2 (L1) 5 HEATER 4 (N/L2) X C X C 8047-00 and 8047-20 Electric Heat Defrosting 8145-AV H (L/L1) N (N/L2) F HEATER 3 COMP 1 (L/L1) 8047-00 8047-20 3 (L/L1) 2 (N/L2) 1 HEATER N COMP 3 (L/L1) 4 HEATER 2 (N/L2) D
PAGE 5
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES Wiring Diagrams 8141-00 and 8141-20 Electric Heat Defrosting (Cycle Limit Switch) 8145-AV H (L/L1) N (N/L2) 8141-00 8141-20 3 (L/L1) X (N/L2) F 3 COMP 1 (L/L1) 2 FAN 5 HEATER 4 (L/L1) X (L/L1) C LIMIT 4 COMP 3 (L/L1) N FAN 1 HEATER 3 (L/L1) 3 (L/L1) INPUT LIMIT 3 COMP 1 (L/L1) 2 FAN 5 HEATER 4 (L/L1) X (L/L1) C SPDT 8141-00 and 8141-20 Electric Heat Defrosting (SPDT Thermostat) 8145-AV H (L/L1) N (N/L2) F 8141-00 8141-20 3 (L/L1)
PAGE 6
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES Wiring Diagrams 8143-00 and 8143-20 Electric Heat Defrosting (Cycle Limit Switch) 8145-AV 8143-00 8143-20 DTAV40 H (L/L1) 3 (L/L1) 3 (L/L1) N (N/L2) X (N/L2) X (N/L2) F HEATER N HEATER N HEATER 3 COMP 1 COMP 1 VALVE 1 (L/L1) 3 (L/L1) 3 (L/L1) 2 5 HEATER 4 HEATER 4 HEATER 4 (N/L2) X (N/L2) 2 (N/L2) X (L/L1) 3 (L/L1) 3 (L/L1) C LIMIT INPUT LIMIT INPUT STAT 2 5 TSTAT 4 TSTAT X (L/L1) C LIMIT 2 TSTAT 4 TSTAT 3 (L/L1) INPUT LIMIT 8143-00 and 8143-20
PAGE 7
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES Wiring Diagrams 8143-00 and 8143-20 Hot Gas Defrosting (SPDT Thermostat) 8145-AV DTAV40 H (L/L1) 3 (L/L1) N (N/L2) X (N/L2) F H GAS N H GAS 3 FAN 1 FAN 1 (L/L1) 3 (L/L1) 2 5 TSTAT 2 TSTAT 4 TSTAT 4 TSTAT X (L/L1) 3 (L/L1) C SPDT INPUT SPDT 3 COMP 1 (L/L1) 2 5 LIMIT 4 (L/L1) X 5/LIMIT C HEATER/ LIMIT 4 COMP 1 (L/L1) 3 LIMIT 1 (L/L1) 8145-00 and 8145-20 Electric Heat Defrosting (Cycle Limit Switch) 8145-AV H (L/L1) N (N/L2) 8145-00 8145-20
PAGE 8
AUTO VOLTAGE DEFROST TIMERS 8000 SERIES Wiring Diagrams 8145-00 and 8145-20 Electric Heat Defrosting (SPDT Thermostat) 8145-AV H (L/L1) N (N/L2) DTAV40 1 (L/L1) N (N/L2) F 3 COMP FAN 1 (L/L1) 4 COMP FAN 2 (L/L1) Customer Service Telephone 1.800.304.6563 Customer Service Facsimile 1.800.426.0804 HVACCustomerService@robertshaw.com For Technical Service Customer Service Europe Telephone Telephone 1.800.445.8299 00 800 77 47 74 77 TechnicalService@robertshaw.