Destiny apex 6100 Uživatelský manuál Strana 36

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Sequence of Operation
System Sequence of Events
¨ Apex Destiny 6100 control panel,
rev. 8.05 or greater
¨ Apex Relay Expansion Module, EXP8
¨ W.W. Grainger, ICM253 Post-Purge Relay,
p/n 4E890
¨ W.W. Grainger, ICM203 Delay-On-Break Relay,
p/n 4E234
- Delayed HVAC Cut-Off After Door Opening -
If one or more doors open and remain open for a predetermined time period, then the
HVAC unit will be disabled to prevent unnecessary heating and cooling.
Objective Equipment List
1) When a door is opened the EXP-8 relay linked to the zone will energize and interrupt
the control signal to the post-purge relay.
2) The post-purge relay will begin a timed countdown period and will interrupt the 24 VAC
control power to the room thermostat if the door remains open at the end of the count-
down period.
3) If the door closes during the countdown period there will be no interruption of control
power and the HVAC unit will remain enabled under the control of the room thermostat.
4) The timed countdown period will begin after each door opening.
Note: If the HVAC unit is disabled due to an extended door opening the
delay-on-break relay will not allow it to restart until the minimum
off time has expired. This will help prevent short-cycling of the
HVAC equipment.
Save energy costs by
operating HVAC only
when needed.
Apex Technical Support 800-272-7937
Option 1
Page 3-5
- Application Note -
Energy Management
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