Paragon EL71 Instruction manual

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
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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)
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• 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.
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• 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).
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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
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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.
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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)
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FUNCTIONAL DESCRIPTION
Control Layout
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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

Input Connections (backside of control)
Sensor Connection: 1. red
2. yellow
3. black
External Override: use 1 + 2 (Use manual switch or iso-
lated contacts.)
CAUTION: Do not apply voltage to sensor inputs. To do so
will damage control.
NOTE: It is recommended that shielded cable be used for
sensor and override input wiring. The shield should be tied
to earth ground at the control.
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Input #2
Input #1

Keypad Description
Master Reset -Clears time and program. Display will show “MEM CLR.” The reset switch is
accessed by inserting a pointed object, such as a paper clip, into the reset hole to
the right of the keypad.
PROGRAM - This key allows the user to add, delete or change parameters (events, time, holidays,
etc).
When pressed from the RUN mode, the programming menu is displayed starting with
the TIME menu header.
When pressed from a menu header, the control will advance to the next menu header.
When pressed from a programming step, the control returns to that menu header.
When pressed during review, the control will go to the appropriate programming display.
REVIEW - This key allows the user to review all the programmed steps using displays con-
densed to show as much information as possible on one display. The user will not be
able to change the program in the Review mode.
When pressed from the RUN mode or any programming step within a menu header,
the control will return to the TIME menu header.
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When pressed from any menu header during review, the control will move to the next
menu header.
When pressed from a review step, the control returns to that menu header.
RUN - This key will return the control to the RUN mode.
From all programming steps (excluding the override menu), the control will perform a
status update and return to the RUN mode.
From all review steps, the control will go straight to the RUN mode without updating.
If the REVIEW key was pressed while in a programming step, the control will perform
a status update and return to the run mode.
When in the override menu, this key will return the selected channel from an override
to the current event status shown and return the control to the RUN mode.
OVERRIDE - This key will take the user to the override header.
From the RUN mode, this key will jump to the override header.
From the override header, the selected channel’s state is toggled and the control
returns to the RUN mode.
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PREVIOUS/NEXT - Moves the display selection to the previous or next program step. While in a
programming step, the current item (to be modified) will be flashing.
+/- - These keys will change (increment or decrement) the current (flashing) item. The +/-
keys will not work during review, except to allow a faster step through events, inputs
and holidays.
Hierarchy of Control
Priority Level 1 - Stagger Up
Priority Level 2 - Timed External Override
Priority Level 3 - Toggle Override (keyboard and external)
Priority Level 4 - External Enable
Priority Level 5 - Astro
Priority Level 6 - Programmed events (on, off, duration, duty cycle, sensor control)
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NOTES: 1. A keyboard override cannot be performed during stagger up.
2. An external override can be done during stagger up, but the stagger up sequence is
still observed.
3. Status update will cancel a keyboard override or an external toggle override, but will not
cancel an external timed override.
4. All programmed events have the same priority. The most recent event is the one that is
active.
As an example of hierarchy, consider a simple lighting control application. It is desired to turn park-
ing lot lights on at sunset and off at 11:00 PM. Programming an ON event at 1:00 PM, an OFF event
at 11:00 PM and using the astro feature will provide the desired control. The ON and OFF events
(at priority level 6) would energize the lights from 1:00 PM to 11:00 PM. However, because the
astro function has higher priority, the lights will be held off during daylight hours, thus achieving
the desired control.
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Programming
Programming Overview:
After pressing the PROGRAM key, the EL71 and EL72 will continue to control the outputs based on
the events that were operating at the time the PROGRAM key was pressed. The control will not
check for new events until it has gone through a status update.
The control remains fully functional after pressing the REVIEW key, provided the REVIEW key was
not pressed while in the programming mode.
During operation, the control will be in the RUN mode. When programming (or reviewing), the order
of the program headers and steps is as follows:
TIME - set time, date, daylight savings time
CONF - 12/24, stagger up, durations 1-4, duty cycles 1-4
ASTR - sunrise, sunset, latitude, hemisphere
EVNT - on, off, durations 1-4, duty cycles 1-4
INPT - configure inputs
EVNT SENS - sensor events
HOL - set holidays
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From the HOL header, the control will loop around to the TIME header. The OVER (override) mode
is only accessible from the RUN mode. The following is a detailed explanation of each mode.
In all modes use the NEXT key to advance to the next item to be programmed or reviewed and the
PREVIOUS key to go back to the previous item. Use the + and - keys to modify the current (flash-
ing) item.
Memory Clear
Indicates that the memory has been cleared. Use the NEXT key to begin programming.
After initial power-up or a reset, the control will be in MEM CLR (memory clear) mode.
This mode is only accessible once.
Toggle between MAINTAIN (maintained) or MOMENTARY (momentary) operation using
the +/- key. When configured for momentary, relay 1 will provide the ON pulse and relay 2
will provide the OFF pulse. An EL72 configured for momentary operation will become a
one channel control. Use the NEXT key to continue programming.
Toggle between 12 hour (AM/PM) or 24 hour (00:00-23:59) clock format using the +/- key.
NOTE: After selecting relay operation and clock format, press the PROGRAM key to
begin programming steps in the TIME header.
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Set Time
Set Time header. This mode is used for setting time, date and daylight saving time. Use
the NEXT key to begin programming.
Program hours, minutes, seconds and day of week using the +/- key. The PM indicator is
used in the 12 hour format. AM begins with midnight and PM begins with noon. NOTE:
Only the PM indicator will appear in the 12 hr format.
Program month, date and year.
To disable daylight saving time operation, select NO.
Program the day that daylight saving time begins. The control defaults to the first Sunday
in April. At 2:00 AM on this day, the control’s time will advance one hour.
Program the day that daylight saving time ends. The control defaults to the last Sunday in
October. At 2:00 AM on this day, the control’s time will go back one hour.
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Configuration
Configuration header. This mode is used for changing the clock format, selecting stagger up,
setting the lengths of the 4 durations and for programming the on/off times of the 4 duty
cycle patterns. Use the NEXT key to begin programming.
Select 12 hour or 24 hour clock format using the +/- key.
Select the stagger up time between channels. This stagger up occurs after a power out-
age and after a status update. This screen only appears with an EL72 using maintained
relays. The following stagger up selections are available:
NO = not used 01.00 = 1 minute
00.05 = 5 seconds 05.00 = 5 minutes
00.15 = 15 seconds 10.00 = 10 minutes
00.30 = 30 seconds 15.00 = 15 minutes
Programs the duration length for dUR1-dUR4, which are event types (see Events). These
durations are programmable from 1 second to 23 hours, 59 minutes and 59 seconds. The
control will not allow a duration of 0:00.00.
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Programs the duty cycle OFF time for CYC1-CYC4, which are event types (see Events).
The off cycle is programmable from 1 second to 23 hours, 59 minutes and 59 seconds.
The control will not allow an OFF cycle of 0:00.00. A duty cycle event will always start with
the OFF cycle.
Programs the duty cycle on time for CYC1-CYC4. The ON cycle is programmable from 1
second to 23 hours, 59 minutes and 59 seconds. The control will not allow an ON cycle of
0:00.00.
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