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COMMERCIAL DEFROST TIMERS

MANUFACTURER COMPARISONS AND HANDS ON LAB

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Why do I need a Paragon Defrost Timer? Manufacturer Comparison Sales Tools Hands On Lab

Mechanical Electrical Program Wiring and Relay information

Q&A

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Manufactured products for the refrigeration industry since 1905

Both mechanical and electronic controls are rated to UL873 commercial refrigeration standards ie. 30,000 cycles

Controls allow for a more precise termination of the defrost cycle based on temperature or pressure value

Controls are often called defrost timers because defrost initiation is based on a time schedule

Easy to install and program especially in retrofit applications

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8145-20

9145-00

8145-AV

Paragon® Intermatic / Grasslin DTAV40 Intermatic/Grasslin G8000 Series

Mechanical Timer Supco Precision Timer Co, Inc.

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Competitive Comparison Paragon® Intermatic Grasslin® Supco®

Family or Part Number 814x-x0 or 804x-x0 G814x-x0 or G804x-x0 S8x4xx0

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Product History+100 Years Quality

ProductsLess than 3 Years, Price Point

ProductLess than 8 years, Me-too

Asian Made Knock-off

Heavy Duty Metal Gears Yes No-Plastic No-Plastic/Steel

Positive Slider Switch Design Assures Positive Electric Contact and Wipes the Contact Surface of Contaminates Yes No No

Heavy duty-Synchronous Enclosed Industrial Type Motor Yes No No

UL Listing UL873 UL873 UL873

Heavy Duty Silver Plated Contacts Yes No No

Switch Ratings @ 240VAC 40 amp 2 HP 240VAC 40 amp 2 HP 240VAC 40 amp 2 HP 240VAC

Warranty 1-Year 2-Year 1-Year

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Paragon® 8000 Series Grasslin® G8000 Series

Enclosed Motor Open Motor

Enclosed Motor reduces risk of damage to the electric motor Reduces contaminants entering the internal workings of the electric motor

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Paragon® 8000 Series Grasslin® G8000 Series

Metal Gears Plastic Gears

Heavy Duty Metal Gear components extends timer life by reducing wear Better gear alignment means better performance

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Paragon® 8000 Series Grasslin® G8000 Series

Heavy Duty Contacts

Paragon Heavy Duty Silver Plated contacts for longer life Properly aligned contacts eliminate arching and shortened life cycles Rated 30,000 cycles, heavy duty positive switch slider bar

Standard Contacts

Grasslin Slider Bar Mechanism

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8145-20M, Mechanical model 120/240V

9145-00M

9045-00M

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Feature Paragon® Intermatic Grasslin®

Family or Part Number 8145-AV DTAV40

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Auto Voltage (120, 208, 230V AC)

Yes Yes

UL ListedYes UL60730

Refrigeration ClockYes UL917

Timer Clock

LED Indicator Lights Yes Yes

Real Time Clock Face Yes Yes

Manual Defrost Initiation

Yes No

Switch Ratings 40 Amp, 2 HP, 277V AC 40 Amp, 2 HP, 240V AC

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Value PropositionWholesaler / Distributor

Contractor End-User

Multi-Voltage (120/208-230/277)

UL Listed

Leading Brand

Real Time Clock Face

Manual Defrost Initiation

Captive Tripper Pins

Switch Ratings

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Feature Paragon®IntermaticGrasslin® Supco®

Family or Part Number 9x45-00 (UDT) n/a n/a

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Multi-Voltage (120/208-230) Yes - direct wire to terminals

UL Listed Yes - as a defrost controller. UL873 Temperature Regulating Device.

Requires life test to 30,000 cycles at temperature extremes.

Backlit Yes

Real Time Clock Yes - Electronic

Power loss protection Yes - clock maintained by capacitor for 100 hours of lost power. Schedule

stored in flash memory.

Manual Defrost Initiation Yes - 15 minutes

Intuitive Display Yes - Time and defrost schedule easy to understand

Switch Ratings Defrost Heater - 30 Amps Resistive

Warning of DT failure Yes - see Terminal G error code

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Value PropositionWholesaler / Distributor

Contractor End-User

Multi-Voltage (120/208-230)

UL Listed

Backlight

Real Time Clock

Power loss protection

Manual Defrost Initiation

Intuitive Display

Switch Ratings

Warning of DT failure

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CROSS REFERENCE

SELL SHEETS

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Manufacturer Part Number

ManufacturerUni-Line®

ReplacementDescription

DTAV40 Grasslin 8145-AV Auto Voltage Timer - DPST - 120…277V - 40A - Metal Enclosure, Plastic Dial

DTMV40 Grasslin 8145-AV Auto Voltage Timer - DPST - 120…277V - 40A - Metal Enclosure, Plastic Dial

DTMV40 Grasslin 8145-AV Auto Voltage Timer - DPST - 120…277V - 40A - Metal Enclosure, Plastic Dial

124-1342 Supco 8145-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

M814520 Supco 8145-20M Mechanism Only of Mechanical Timer 8145-20

M814520 Supco 8145-AVM Mechanism Only of Mechanical Auto Voltage Timer 8145-AV

S804100 Supco 8041-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

S804120 Supco 8041-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

S804500 Supco 8045-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

S804520 Supco 8045-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

S814100 Supco 8141-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

S814120 Supco 8141-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

S814500 Supco 8145-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

S814520 Supco 8145-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

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Manufacturer Part Number

ManufacturerUni-Line®

ReplacementDescription

G8045-00 Grasslin 8045-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

G8045-20 Grasslin 8045-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

G8145-00 Grasslin 8145-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

8145-20 Grasslin 8145-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

6045-00 Precision 8045-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

6045-20 Precision 8045-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

6145-00 Precision 8145-00 Mechanical Timer - DPST - 120V - 40A - Metal Enclosure, Metal Dial

6145-20 Precision 8145-20 Mechanical Timer - DPST – 208/240V - 40A - Metal Enclosure, Metal Dial

8145-20 Robertshaw 8145-AV Auto Voltage Timer - DPST - 120…277V - 40A - Metal Enclosure, Plastic Dial

8145-20 Robertshaw 9045-00 Electronic Timer – DPST – 120/208/240 - 30A - Metal Enclosure, Digital

8145-20 Robertshaw 9145-00 Electronic Timer – DPST – 120/208/240 - 30A - Metal Enclosure, Digital

8145-20M Robertshaw 8145-AVM Mechanism Only for Mechanical Timers

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Manufacturer Part Number Manufacturer Uni-Line® Replacement Description

CC616 GEMLINE 8145-20M Exact

CC81452 GEMLINE 8145-20M Functional

DT140ST-240 GRASSLIN 8145-20M Functional

03S072 HUSSMAN 8145-20M Functional

4480482 HUSSMAN 8145-20M Functional

G8145-20 INTERMATIC 8145-20M Exact

3805 INTERNATIONAL COLD 8145-20M Functional

D81-8145-20 PARAGON 8145-20M Exact

16987 PARAGON 8145-20M Functional

3106-3 PARAGON 8145-20M Functional

5106 PARAGON 8145-20M Functional

5527-Z PARAGON 8145-20M Functional

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Manufacturer Part Number Manufacturer Uni-Line® Replacement Description

5719-G PARAGON 8145-20M Functional

5X459 K357-20 PARAGON 8145-20M Functional

6145-20 PARAGON 8145-20M Functional

7075401 PARAGON 8145-20M Functional

7075407 PARAGON 8145-20M Functional

7075407 8145-20B PARAGON 8145-20M Functional

8106-3 PARAGON 8145-20M Functional

8145-20B PARAGON 8145-20M Functional

8145-20M PARAGON 8145-20M Functional

A357-20 PARAGON 8145-20M Functional

EL516A FOGEL PARAGON 8145-20M Functional

G357-20 PARAGON 8145-20M Functional

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Manufacturer Part Number Manufacturer Uni-Line® Replacement Description

J357-20 PARAGON 8145-20M Functional

K357-20 PARAGON 8145-20M Functional

P990 PARAGON 8145-20M Functional

R3106-3 PARAGON 8145-20M Functional

TD681-3 PARAGON 8145-20M Functional

TD961-3 PARAGON 8145-20M Functional

TS306 PARAGON 8145-20M Functional

Q81-452 QUALITY ENGIN. SYS. 8145-20M Exact

ELTMR0603 RANDELL 8145-20M Functional

S814520 SUPCO 8145-20M Exact

324-12768-00 TRAULSEN 8145-20M Functional

12410 UNI-LINE 8145-20M Exact

66201312410 UNI-LINE 8145-20M Functional

7008-105 UNI-LINE 8145-20M Exact

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Order 150-2230 Order 150-1893

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8000 Series Mechanical Timers 9000 Series Electronic Timers

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MECHANICAL INSTALLATION

ELECTRICAL INSTALLATION

PROGRAMMING

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Universal Defrost Timer mounts in previous legacy boxes Perfect for aftermarket applications

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1. Turn off AC power

2. Open metal case to access control connectors

3. Connect wires from compressor to terminal A

4. Connect heater or hot gas solenoid to Terminal E

5. Connect wire to Terminal C from L1 – 120 VAC or 208-240 VAC line

6. Jumper Terminal C to Terminals B and D

7. Connect wire from L2/N to Terminal F

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Convert to 9145 Convert to 9045

Convert 8141 to 9145

8141 N 1 4

3 2 X

9145 A B C D E F G

Convert 8143 to 9145

8143 1 N 2

3 4 X

9145 A B C D E F G

Convert 8145 to 9145

8145 3 4 X

1 2 N

9145 A B C D E F G

Convert 8041 to 9145

8041 N 1 4

3 2 X

9145 A B C D E F G

Convert 8045 to 9045

8045 2 N 1

4 3 X

9045 A B C D E F

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Time or Temperature Terminated in Electric Defrost

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Flashes at 12:00 Noon

Refrigerate LED is on

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1. Scroll cursor to desired defrost start time

2. Press “Defrost Start/Stop” once

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1. Rotate cursor to the first segment in the defrost

2. Press “Clear”

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Press, hold and release all four buttons to clear the program

The Defrost Timer will return to its original power up state

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The UL standard used for temperature regulating commercial refrigeration equipment is UL873?

□ True □ False

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The Paragon 9145-00 defrost control will terminate a defrost cycle based on which of these inputs?

□ Pressure □ Temperature □ Time □ All of the above

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Which input voltage will not power a Paragon Defrost Timer?

□ 24V AC □ 120V AC □ 208V AC □ 240V AC □ 277V AC

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