Hired-Hand Emergency Back-Up and Alarms: Secondary Sensing System - Manual (Page 12)

Manual No. 4801- 2997 Rev 7-08 Secondary Sensing System 12 of 40
5.2.6 Zone Temperature Section
The Zone Temperature Section shows the specific zone alarm status and control settings for the
temperature alarms. If the Alarm Indicator is ON, that particular Zone is out of its temperature range based
on the High and Low Limits.
5.3 Back-Up System Indicators
The Back-Up System Indicators display the Back-Up operation status and control settings. Refer to
Section 8 for additional information.
5.3.1 Inlet Overrides Indicators
The Inlet Override Indicators indicate if the Back-Up is calling for vent inlets or tunnel inlets to
open. Vent inlets operate with Cool 1; Tunnel inlets operate with Cool 3.
5.3.2 Ventilation Back-Up Display and Selection Switch
The Ventilation Back-Up Display and Selection Switch are used to select and change the back-up
settings. Refer to Section 8 for additional information.
5.3.3 Back-Up Stages
The Back-Up Stages Indicators indicate if the Heat, Cool 1, Cool 2, or Cool3 stages are ON or
OFF. If Cool 1 is flashing, it indicates that it is operating on a minimum ventilation timer. Refer
to Section 8.1.1 for additional information.
5.4 Synchronize / Test Indicators
The Synchronize / Test Section include two functions. Synchronize Systems and Test/Acknowledge
Alarm.
Temperature/Settings
Display
Selection Switch
Back-Up Stages
Indicators
Ventilation Back-Up
Display & Selector
Inlet Overrides
Indicators
Alarm Indicators
Zone Selection Switches
Zone Temperature/
Settings Displays