Systems Controls & Instruments ETN-24-PROG Series Owner's Manual page 6

4. Hardware Jumper Explanations
IMPORTANT - BEFORE MAKING ANY CHANGES IN THE HARDWARE
JUMPERS, DISCONNECT ELECTRICITY AT THE MAIN SWITCH.
4.1 The Hardware Jumpers are situated according to this drawing. (back of the thermostat)
Jumper 2
Jumper 4
B
Jumper short - when the black cover is placed on the 2 pins. (2 pins shorted)
Jumper open - when the 2 pins of the jumper are NOT SHORTED (2 pins open)
File: ETN-24-PROG book - page letter
Jumper 3
A Jumper 5
Rev: 1
Pipersville, PA 18947 USA
Phone: 215-766 1487 Fax: 215-766 1493
Email: info@scillc.com - www.scillc.com
Jumper 1
B
- 4 -
A
Date: 24-06-2002