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This option allows you to set the 4010 to stagger start any Air Handling Units
(AHUs) control points (point types AHUR, AHUO, and AHUF) in the 4010
FACP . This option protects against power spikes that may cause the circuit
breakers to trip when AHUs start simultaneously. The range for stagger starting
the AHUs is 0-60 seconds. The default setting for this option is 30 seconds. A
setting of zero allows the AHUs to start immediately.
The 4010 displays an AHU Stagger Start message when the sequence starts and an
AHU Stagger Start Complete message when the sequence ends.
Use the following steps to set the Stagger Start AHUs timer on the 4010 FACP.
1. Press <MENU>.
2. Press <NEXT> or <PREVIOUS> until [PROGRAMMING] is displayed
and then press <ENTER>. A warning appears, indicating that the 4010 is
no longer in the Fire Alarm Operation mode.
3. Press <ENTER> to continue.
4. Press <NEXT> or <PREVIOUS> until <SYSTEM OPTIONS> is
displayed and then press <ENTER>.
5. Press <NEXT> or <PREVIOUS> to scroll through your choices until
<STAGGER START AHUS> is displayed and then press <ENTER>.
6. Press <NEXT> or <PREVIOUS> to set the timer from 0-60 seconds and
then press Enter.
7. Follow the prompts to confirm this action.
Stagger Start AHUs
Overview
Setting the Stagger Start AHU
Delay Timer
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