Alarm; Powering Up - Varifan ECS-4+ User Manual

ECS-4+

2.6 ALARM

The ECS 4+ provides a normally open and normally closed
dry contact for alarming low or high temperature
conditions. In addition, this same contact can be used to
signal a power failure. This contact may be connected to
an alarm system, or directly to a siren and/or auto-dialer.
Make connections as indicated in Figure 3.
Momentary power interruptions may trigger false alarms!
To avoid them, when the ECS 4+ is connected to an
alarm system, install a time delay relay between the ECS
4+ and the alarm system.

2.7 POWERING UP

Before powering up the ECS 4+, attach the faceplate and
the terminal strip cover to the casing of the control panel,
using the six screws previously removed.
Set Selector knob to position (12).
Upon power up, the unit will test its display by briefly
lighting all the segments of its LEDs. Make certain that all
segments light up.
Following the LED display test, the unit displays the
ambient temperature of the room.
If the temperature is not displayed, refer to the
Troubleshooting section in the Appendix of this document.
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