Filter
Top Products
MUA-PRC001-EN38
Options
Mixing Box —
Temperature Control
Purpose
To provide a way for recirculating return
air and letting mixed air temperature
determine the amount of OA/RA.
Operation
A temperature sensor located after the V-
bank filter modulates the OA and RA
dampers to maintain a set temperature.
If temperature at sensor is cooler than
setting, OA damper modulates to a more
closed position, and RA damper
modulates to a more open position.
If temperature at sensor is warmer than
setting, OA damper modulates to a more
open position, and RA damper
modulates to a more closed position.
Mixing Box —
Manual Control
Purpose
To provide a way for recirculating return
air and using manual control to
determine the amount of OA/RA.
Operation
A manual potentiometer located at the
remote control station determines the
OA/RA setting. The minimum OA damper
position is factory set with a
potentiometer. The minimum OA
damper opening is set at 4 cfm per
1 MBh of burner rated input, or 25%
supply air, whichever is larger.
Option Includes:
• Mixing box with V-bank filter and
permanent filters
• Dampers
• Modulating damper motor(s)
• Manual potentiometer
Note: Remote control station not
included.
The minimum OA damper position is
factory set with a potentiometer. The
minimum OA damper position is set at 4
cfm per 1 MBh of burner rated input, or
25% supply air, whichever is larger.
The desired temperature at the
temperature sensor is set at the control
cabinet at the unit.
Option Includes:
• Mixing box with V-bank filter and
permanent filters
• Dampers
• Modulating damper motor(s)
• Temperature sensor