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DT20
Description
The DT20 is a compact electronic 24 hour/7 day time switch module, with heavy duty relay contacts for
switching low or line voltage loads. Applicable for time of day control of pumps, fans, heaters, HVAC control
circuits, lighting, machinery and many other types of commercial, industrial, and agricultural equipment.
All models feature large keys with unique "circular programming" for easy programming, a large LCD dis-
play and battery backup.
Features
❑ 24 Hour (AM & PM), 7 Day Programming
❑ 3 Common Preset or Custom Timing Programs
❑ 20 Programs Provide Up To 10 ON & 10 OFF
Events Per Day / Weekl
❑ Rechargeable Battery Backup With 100 Hour
Carry-Over
❑ 16 Amp, SPDT Relay
❑ Manual Override Capability
❑ Several Mounting Styles Available
❑ Daylight Savings Key
Application
Time based control of lighting, ventilating, heating, cooling or other electrical loads in commercial and industrial
applications. The DT20 time switches are programmable for 24-hour or 7-day schedules. Mounting options are available
for surface or DIN rail mounting.. The control can be completely enclosed in a plastic housing with an optional terminal
cover and sub-base for installation and hard wiring. They are also available with a din rail mount within an enclosure for
stand-alone outdoor applications.
h t tp : / /w w w. k ep . c om
99867 12/20/16
KESSLER-ELLIS PRODUCTS
10 Industrial Way East
Eatontown, NJ 07724
800-631-2165 • 732-935-1320
Fax: 732-935-9344
Day Timer with 20 Programmable Presets
Installation and Operating Manual
DT20
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Table of Contents
Related Manuals for Kessler-Ellis Products DT20
Summary of Contents for Kessler-Ellis Products DT20
- Page 1 Installation and Operating Manual Description The DT20 is a compact electronic 24 hour/7 day time switch module, with heavy duty relay contacts for switching low or line voltage loads. Applicable for time of day control of pumps, fans, heaters, HVAC control circuits, lighting, machinery and many other types of commercial, industrial, and agricultural equipment.
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Page 3: Table Of Contents
Contents Safety Precautions ........................1 Program Structure ........................1 Symbol Keys ..........................2 Setting The Timer ........................2 Setting The Clock, Time & Day ....................2 Preset Programs ........................3 Using / Selecting Preset Programs P01 - P03 ...............3 Creating User Defined Programs ...................4 Deleting Programs ........................5 Summer/Winter Time (Daylight Saving Changes) ..............5 Automatic Operation / Override Operation ................5 Mounting Options ........................6... -
Page 5: Safety Precautions
Program Structure Safety Precautions Safety precautions Press Reset Button · The connection and installation of electrical devices may only be carried out by a qualified electrician. First installation setting Review/adjust · Interventions in and changes to the device result in the voiding of the warranty claim. -
Page 6: Symbol Keys
Setting The Clock, Time & Day Symbol Keys reset : Overview of daily switching program Sequence to follow after selecting programming by pre-set programs or Menu mode. : Setting of 24h or am/pm : Summer/winter clock changes Set display format 24h or am/pm : Weekday display : Switching status display ON/OFF : Pointer to Mode OVERRIDE/AUTO... -
Page 7: Preset Programs
Prog. Preset Programs Using / Selecting Preset Programs P01-P03 prog P01: Mo - Su, 1 x ON/OFF Programs P01-03 (If Used) Sequence to follow after initially setting time in the Reset mode. The switching on and off times for programs P01 to P03 are preset (pre). -
Page 8: Creating User Defined Programs
Creating User Defined Programs prog prog Sequence to follow after setting time and week day while running Menu mode or adding programs to the pre-set P01 to P03. Set hour OFF Select program ON OVR AUTO Menu OK Res. Mode OVR AUTO Menu OK Select hour (+/- ) and confirm... -
Page 9: Deleting Programs
Deleting Programs Summer/Winter Time Switching by Activating / Deactivating Daylight Savings Time OVR AUTO Menu OK Res. Mode OVR AUTO Menu OK Res. Mode The +1h key is for the change to Select Menu , then select OK key daylight savings time. until getting onto the ON time of the program you want to delete. -
Page 10: Mounting Options
MOUNTING OPTIONS DT20: Standard Module Only with Spade Lugs 60.1 mm 2.37" 2.12" 53.7 mm 2.37" 60.1 mm 3.4 mm 0.13" Rear Mounting Holes (4 places) DTA-D: DIN Rail Mount with Terminal Block 2.03" 51.5 mm 2.59" 65.7 mm 3.08" 78.2 mm 1.68"... -
Page 11: Warranty
WARRANTY WARRANTY materials and workmanship for a period of one (1) DT20 Day Timer years from the date of shipment to Buyer. If within one (1) year from the date of purchase, this product fails due If within one (1) year from the date of purchase, this product fails due... -
Page 12: Apendix-A: Program Schedules Worksheet
Apendix-A: Program Schedules Worksheet DT20 Series Program Schedules Prog ON/OFF Day(s) WARRANTY ________________________________________________________________________________________________________________________________________________________________________ 7 am Mon., Tue., Wed., Thurs, Fri. _______________________________________________________________________________________________________________________________________________________________________ If within one (1) year from the date of purchase, this product fails due to a defect in material or workmanship, Intermatic Incorporated will ________________________________________________________________________________________________________________________________________________________________________ repair or replace it, at its sole option, free of charge.
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