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IM 1287-4 • REBEL APPLIED ROOFTOP 74 www.DaikinApplied.com
Unit Operation
Smoke and Fire Protection
DANGER
The potential risk of smoke, fire, or fumes entering the unit can result in
serious injury, death, and property damage
Daikin optionally offers factory installed outdoor air, return
air, and exhaust air dampers as well as smoke detectors in
the supply and return air openings, complete with wiring and
control. These components often are used in the building’s
smoke, fume, and fire protection systems. However, due to
the wide variation in building design and ambient operating
conditions into which our units are applied, we do not represent
or warrant that our products will be fit and sufficient for smoke,
fume, and fire control purposes. The owner and a fully qualified
building designer are responsible for meeting all local and
NFPA building code requirements with respect to smoke, fume,
and fire control.
Smoke Detectors
Field installed smoke detectors in the return air ductwork or
the supply air ductwork can be coordinated with the unit’s
operation through the unit controller’s binary input. This input
is wired to TB2 and the supply air smoke detector can be
wired between terminals 103 and 104 and the return air smoke
detector can be wired between terminals 104 and 105. The T2
transformer supplies 24 V (ac) across each of these terminals
and a dry set of contacts can be wired to these terminals
respectively.
Factory installed smoke detectors have similar wiring and the
control sequence is as follows:
When smoke is detected by either sensor, the normally closed
sensor contacts open. This removes power from binary input
on the main control board.
The MicroTech 4 controller responds by shutting down the
unit. The controller is placed in the Alarm Off state and cannot
be restarted until the alarm is manually cleared. Refer to the
operation manual supplied with the unit for information on
clearing alarms.
The smoke detectors must be reset manually once they have
been tripped. Power must be cycled to the smoke detector to
reset.
Ventilation Override Control
An Optional ventilation override control feature provides three
contact inputs pre-wired in the unit control panel for override
control in the event of an emergency. They are all designated
on a field wired terminal strip in the low voltage control panel.
Sequences -
the ventilation control feature allows for one of
the following sequences to be performed.
NOTE:
For all Sequences the Emergency OFF contact
should be open.
1.
Ventilate:
When the digital input for Ventilate is active,
the Outdoor air damper is opened to 100%.
2.
Pressurization:
When Pressurization is active, the
Outdoor air damper is opened to 100%, and the Supply
Fan Ramps to Vent Capacity. SAF Vent Capacity
is adjustable in the MicroTech 4 under
Main Menu\
Advanced Menus\SAF Set-Up\SAFVentCap
3.
Purge:
When Purge is active, the return damper is held
shut and the Exhaust fan ramps to Vent Capacity. RFEF
Vent Capacity is adjustable in the MicroTech 4 under
Main Menu\Advanced Menus\RFEF Set-Up\RFEFVentCap
Содержание Rebel Applied DPSA
Страница 15: ...Introduction www DaikinApplied com 15 IM 1287 4 REBEL APPLIED ROOFTOP Figure 17 VFD Inverter Box Components ...
Страница 109: ...Unit Maintenance www DaikinApplied com 109 IM 1287 4 REBEL APPLIED ROOFTOP Figure 159 10kW 50kW Full SCR Control ...
Страница 144: ...IM 1287 4 REBEL APPLIED ROOFTOP 144 www DaikinApplied com Furnace Wiring Diagrams Figure 178 600 MBH 2 Stage ...
Страница 145: ...Furnace Wiring Diagrams www DaikinApplied com 145 IM 1287 4 REBEL APPLIED ROOFTOP Figure 179 600 MBH 4 Stage ...
Страница 147: ...Figure 181 600 MBH 5 1 Modulation 400 MBH and 600 MBH 10 1 Modulation ...
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