ED E10CH1 Instruction manual

INSTALLATION, OPERATION
& MAINTENANCE MANUAL
EDI MODEL
E10CH1
MIKROPUL MODEL
72-IC, 132596-A
DESCRIPTION
10-POSITION TIMER
ELECTRONIC DESIGNS INC.
1683 Rock Hill Highway
Lancaster, SC 29720
Phone: [phone] | Fax: [phone]
Website: www.edi-usa.com
E-mail: [email protected]

2
TABLE OF CONTENTS
Page Subject
3 General Description
3 Features
3 Mounting & General Wiring
4 Electrical Wiring
4 Warranty & Repair
5 Wiring Diagram

3
GENERAL DESCRIPTION:
Our solid state timers are capable of switching from one (1) to ten (10) independent
outputs. Each of the outputs has a switching capacity of 1 Amp at 120 VAC. By relocating
the program wire from Position #10 (on the Timer) to the number of positions desired, the
timer will pulse only from Position #1 through the programmed number.
This is a continuous cycle timer and the pulse rate is set and adjusted by the operator via
OFF-ADJ and ON-ADJ potentiometers to preferred time settings. The timer cycling can be
stopped or placed on “Hold” by energizing the timer Hold-Off circuit. This is accomplished
by applying a 120 VAC signal to the Hold-Off Terminals. Isolation circuitry is incorporated
into the timer which allows the Hold-Off function to be accomplished from a remote
location.
FEATURES:
•120 VAC 50/60 Hz, Single Phase
•1 amp maximum capacity per output
•1 amp fuse protection
•All solid state industrial quality construction
•Hold-Off capability, either Local or Remote.
•LED indicates timer operation
•Line Surge Protection
•Start on Position 1
•Pilot lamp indicates power on
•Adjustable ON time 50 – 150 ms
•Adjustable OFF time 3 - 60 seconds
•UL Recognized to US and Canadian Standards under File E 60685
MOUNTING & GENERAL WIRING:
1. Each timer is to be mounted in a dust tight and water tight NEMA rated enclosure.
Please contact EDI for available enclosure options and pricing.
2. It is recommended that conduit openings/holes be placed in the bottom of enclosure to
prevent condensate or moisture from entering the enclosure.
3. Mount the timer enclosure in a vibration-free area. (Use isolators to mount timer to sub
plate).
4. Run supply wiring to the timer, 120VAC, 1 Phase, 50/60 Hz from the line circuit
protector.
5. Run wiring from the timer to the pilot valve box.

4
ELECTRICAL WIRING:
1. Connect 120VAC supply to HI (TERMINAL 14) and NEUTRAL (TERMINAL 13).
2. Connect one side of each valve to the COMMON (TERMINAL 11),
sequentially.
3. Connect the other side of each solenoid valve to the SWITCHED OUTPUTS
(TERMINAL 1 through 10), sequentially.
4. Set OFF ADJ potentiometer to desired time between pulses.
5. Set ON ADJ potentiometer to desired time duration of each pulse.
6. Connect 120 VAC Hold-Off Circuitry if needed to TB 2.
WARRANTY
All timers come with a one year warranty against parts and/or manufacturing defects. Please see
our terms & conditions or contact us for additional details.
EVALUATION & REPAIR SERVICE
On timers older than one year, we offer a test and repair lab at our facility. Once received,
boards are logged in, evaluated and tested. A report is then sent to the customer with
repair and/or replacement options.
To send a board to us for evaluation, please call 704-545-1439 or email [e-mail]
to request a Return Authorization.
ENCLOSURES & ACCESSORIES
Need an enclosure for your Timer Board? We stock a wide range of enclosures and can provide
any of our Timers and Controls in an enclosure with a 48-hour turnaround available.
Enclosures Construction:
•Mild Steel, Stainless Steel, Fiberglass
•With and Without Viewing Windows
NEMA Ratings
NEMA 1, 4, 4X, 7, 9 and 12 environments
Mounting:
Suitable for wall mount, floor mount or free‐standing
Options Available with Enclosures:
•2‐Way (On/Off) Selector Switches
•3‐Way (On/Hold/Off) Selector Switches
•Magnehelic Gauge mounted in door
•Photohelic Gauge mounted in door
•Terminal Blocks mounted inside
•Bulk head fittings
•Air tubing and wiring

5
E10CH1, 10 POSITION TIMER
CONTINOUS CLEANING WITH
OPTION FOR HOLD-OFF
PHYSICAL DIM.
5.5" X 7"
MOUNTING DIM:
5" X 6.5"
TB2
TB1
OFF ON
120 VAC SWITCHED OUTPUTS
TO SOLENOIDS
(120 VAC HI)
SOLENOID COMMON
(120 VAC N)
120 VAC 60 HZ
INPUT POWER
120 VAC
HOLD-OFF SIGNAL
1 2 3 10 C C N HI
A
10
EDI
HEWITT NJ 07421
1 AMP FUSE
QUICK BLOW
PLEASE OBSERVE LOCATION OF
COMMON, HI, NEUTRAL, AS THIS
MAY DIFFER FROM OTHERS.
HOLD OFF REQUIRES 120 VAC.
NOTES:
1. Adjust "ON" and "OFF"
times on the Timer.
2. Program wire should be placed
in desired output position.
3. For Hold-Off Mode:
Timer starts cycling when
HIGH set point is reached
and continues until
Δ P falls.
Signal isfromexternal source.
4. Use of vibration isolators
recommended for mounting
timer to back plate.