Daikin MPS026 F - Purge and Pressurization

Figure 41: Wheel Construction (Side-by-Side)
(1) Currently, only the Over-Under conguration is offered on Daikin roof-top systems and air handlers.
Purge and Pressurization
Pressurization is critical to minimize crossover from exhaust
to Figure 42: Purge Detail supply and to allow the purge to
operate.
Figure 42: Purge and Pressurization Figure 43: Purge Detail
Any leakage must occur
from outside to Exhaust Air
due to pressure gradient
Supply Air
Outside Air at
Atmospheric Pressure
Exhaust Air
Adjustable Purge
(See Detail)
Plenum Exhaust Fan
draws a negative pressure
NOTE:
Maintain the pressure gradient to
prevent cross contamination from the
Exhaust to Outside Supply Air
OUTSIDE AIR
EXHAUST AIR
Adjust purge in this
direction to decrease
capacity and increase
purge
IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS 46 www.DaikinApplied.com
oPTIonal enerGy reCovery Wheel