Paragon EL71 Manuale di istruzioni
EL71 - Single Channel & EL72 - Two Channel
Electronic Time Controls
General Instructions
http://waterheatertimer.org/Paragon-timers-and-manuals.html#EL
Table of Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . .3 CONFIGURATION . . . . . . . . . . . . . . . .19
SPECIFICATIONS . . . . . . . . . . . . . . . . . . .3 ASTRO . . . . . . . . . . . . . . . . . . . . . . . .20
PROGRAMMING CAPABILITIES . . . . . .3 EVENTS . . . . . . . . . . . . . . . . . . . . . . . .25
ELECTRICAL . . . . . . . . . . . . . . . . . . . . .7 INPUT CONFIGURATION . . . . . . . . . .26
ENVIRONMENTAL . . . . . . . . . . . . . . . . .9 SENSOR EVENTS . . . . . . . . . . . . . . . .28
PHYSICAL . . . . . . . . . . . . . . . . . . . . . . .9 HOLIDAY . . . . . . . . . . . . . . . . . . . . . . .29
FUNCTIONAL DESCRIPTION . . . . . . . . .10 OVERRIDE . . . . . . . . . . . . . . . . . . . . .32
CONTROL LAYOUT . . . . . . . . . . . . . . .10 RUN . . . . . . . . . . . . . . . . . . . . . . . . . . .33
INPUT CONNECTIONS . . . . . . . . . . . .11 ACCESSORIES . . . . . . . . . . . . . . . . . . . .34
KEYPAD DESCRIPTION . . . . . . . . . . .12 TEMPERATURE SENSOR . . . . . . . . . .34
HIERARCHY OF CONTROL . . . . . . . . .14 LIGHT SENSOR . . . . . . . . . . . . . . . . . .34
PROGRAMMING . . . . . . . . . . . . . . . . . . .16 COMPUTER INTERFACE ADAPTOR . .35
PROGRAMMING OVERVIEW . . . . . . .16 COMPUTER SOFTWARE . . . . . . . . . .35
MEMORY CLEAR . . . . . . . . . . . . . . . .17 APPLICATION EXAMPLES . . . . . . . . . . .36
SET TIME . . . . . . . . . . . . . . . . . . . . . .18 PROGRAMMING WORKSHEETS . . . . . .48
2
Introduction
The EL71 and EL72 are one- and two-channel electronic time controls that provide simple, inexpen-
sive control of lighting, HVAC, motors, pumps, bell-ringing or any electrical load with a time-of-day
schedule. The control may be utilized as a 24 hour, 7 day or full year (365 day) control.
The EL series allows for the programming of 128 events. An event could be an ON, an OFF, one of
four user defined durations or one of four user defined duty cycle patterns. In addition, up to 32 sen-
sor events can be programmed to allow control based on temperature and light level. Other parame-
ters can be used; contact the factory for information.
The EL series of time controls is versatile, yet easy to program. A simple keypad combined with a
large, user friendly display takes the frustration out of programming.
Specifications
Programming Capabilities
• 128 Events - An event can be an ON, an OFF, one of four user defined durations or one of four
user defined duty cycle patterns. Each event can be assigned to either channel. Each event can
be assigned to any day or any combination of days, including the three holiday schedules.
• 4 Durations - Each duration can be programmed from 1 second to 23 hours, 59 minutes and 59
seconds.
• 4 Duty Cycle Patterns - Each duty cycle pattern can be programmed with ON durations and OFF
durations from 1 second to 23 hours, 59 minutes and 59 seconds. 3
• 2 User Defined Inputs - Each input can be independently defined as one of two override types, an
enable input or as one of four sensor types.
• ON With Off Delay Override Input - Provides a retriggerable override input that is assignable to
either or both outputs. The affected output(s) will be overridden ON with the closing of the input
and remain ON as long as the input is closed. When the input is opened, the output(s) will remain
ON for the length of the off delay. The off delay is programmable from 0 seconds to 23 hours, 59
minutes and 59 seconds. Closing the input during the off delay will retrigger the override.
• Toggle Type Override Input - Provides a toggle type override input that is assignable to either or
both outputs. Closing the input causes the affected output(s) to be toggled to the opposite state and
remain in that state until the occurrence of the next programmed event. An optional timed-on from 1
second to 23 hours, 59 minutes and 59 seconds can be programmed. Upon completion of this
timed-on, the affected output(s) will return to the programmed state unless toggled off.
• Enable Input - The enable input is assignable to either or both outputs. The enable input acts as a
switch which opens and closes in series with the output. When open, the loads will remain off.
When closed, the output(s) follow the scheduled events.
• Sensor Input - The inputs can be configured as one of four sensor types:
F = degrees Fahrenheit (-40 to 215)
C = degrees Celsius (-40 to 102)
L = light level (0 to 100)
U = undefined (0 to 255)
4
• 32 Sensor Events - A sensor event will control a channel based on programmable on/off sensor
levels. Each sensor event can be assigned to any day or combination of days, including the three
holiday schedules.
• Optional Daylight Savings Correction - Programmable as a day of the month (i.e. 1st Sunday in
April / last Sunday in October)
• Leap Year Correction to the Year 2100
• 10 Single Day Holidays - (e.g. July 4th)
• 10 Day of Month Type Holidays - (e.g. last Monday in May)
• 10 Holiday Durations - Programmable from 1 to 366 days (e.g. June 9th to August 27th)
• 6 Specific Holidays - Each holiday can be optionally selected
Good Friday Easter Sunday Easter Monday
Boxing Day Victoria Day Thanksgiving Thursday and Friday
• 3 Holiday Schedules - Each of these 36 holidays can be assigned to one of three holiday sched-
ules (A,B or C). For example, if July 4th is assigned to holiday schedule A, then on July 4th only
those events and sensor events containing holiday A in their day fields will be executed.
• Keyboard Override - Toggles the current output state; begins immediately when initiated and
remains in effect until overridden again or until the next programmed event occurs.
5
• Astro - Optional Astro feature assignable to either or both channels. Astro will automatically keep
track of the changing sunrise and sunset times throughout the year without the need of a photo-
cell. The Astro feature will keep assigned outputs off during daylight hours.
• Selectable Clock Format - 12 hour (AM/PM) or 24 hour clock format
• Stagger Up - Optional stagger up time between channels, after a power outage (EL72 only), select-
able from 5 seconds, 15 seconds, 30 seconds, 1 minute, 5 minutes, 10 minutes, and 15 minutes
• Momentary - The EL71 and EL72 each have two relays. Both controls can be configured for either
maintained or momentary operation. The momentary option is intended for use with latching
relays. When configured for momentary a control will have only one channel; relay #1 will provide
a 1 second latching ON pulse and relay #2 will provide a 1 second latching OFF pulse. When an
EL71 is configured for maintained operation, both relays will operate in unison (DPDT).
• Computer Interface - The controls can be programmed and reviewed by a local personal computer
using Pecosoft.EL software and an RS-232 Adapter (each sold separately).
6
1. Electrical:
Power Requirements
Model Description Voltage
EL71/120 Single channel, metal case 120Vac, 50/60 Hz
EL71/208-240 Single channel, metal case 208-240Vac, 50/60 Hz
EL71/277 Single channel, metal case 277Vac, 50/60 Hz
EL71PC/120 Single channel, plastic case 120Vac, 50/60 Hz
EL71PC/208-240 Single channel, plastic case 208-240Vac, 50/60 Hz
EL71PC/277 Single channel, plastic case 277Vac, 50/60 Hz
EL72/120 Two channel, metal case 120Vac, 50/60 Hz
EL72/208-240 Two channel, metal case 208-240Vac, 50/60 Hz
EL72/277 Two channel, metal case 277Vac, 50/60 Hz
EL72PC/120 Two channel, plastic case 120Vac, 50/60 Hz
EL72PC/208-240 Two channel, plastic case 208-240Vac, 50/60 Hz
EL72PC/277 Two channel, plastic case 277Vac, 50/60 Hz
7
2. Outputs - Two SPDT relays with contacts rated as follows:
Normally Open Contacts: 20 amp resistive or inductive at 120-277 Vac
1 HP at 120 Vac
2 HP at 208-277 Vac
5 amp tungsten at 120-240 Vac
20 amp ballast at 120 Vac
10 amp ballast at 208-277 Vac
470 VA at 120-240 Vac
Normally Closed Contacts: 10 amp resistive or inductive at 120-277 Vac
1/4 HP at 120 Vac
1/2 HP at 208-277 Vac
3 amp ballast at 120-277 Vac
275 VA at 120-240 Vac
3. Wiring - Power input and relay contact terminals can accommodate 10-16 AWG
- Sensor/override input terminals can accommodate 14-22 AWG
4. Power Outage Carryover - The program and time of day are maintained during a power outage
for a minimum of 60 hours.
8
Environmental:
1. Temperature - Operating: -20˚F (-29˚C) to 140˚F (60˚C)
2. Relative Humidity - 10 to 90% RH (non-condensing)
3. The NEMA 1 (metal) enclosure models should be mounted indoors in an environment that is free
from excessive contaminants such as oil, moisture and dirt.
4. The NEMA 3R (plastic) enclosure models are suitable for both indoor and outdoor use.
Physical: Enclosure Dimensions
NEMA 1 (metal) NEMA 3R (plastic)
W = 4 1/8" (10.5 cm) W = 6.3" (16.0 cm)
H = 7 3/4" (19.7 cm) H = 8.5" (21.6 cm)
D = 3" (7.6 cm) D = 3.8" (9.7 cm)
9
FUNCTIONAL DESCRIPTION
Control Layout
10
RS232
Master Reset
Channel 2 (EL72)
Off Relay
(momentary)
Channel 1 (EL72)
On Relay (momentary)
Program Header Menu
TIME
CONF
ASTR
EVNT
INPT
EVNT SENS
HOL
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