Figure 22 - Fresh Air Opening With Motorized Damper - Left And Right Hand Unit Shown - Johnson Controls VB09 Installation, Operation And Maintenance Manual

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018
CABINET DIMENSIONS (INCHES)
MODEL A
09–12 17
15–24 20
30–36 24
1. Optional fresh air option comes with 4.25-inch RA flange.
2. Optional front supply opening comes with 4.25-inch duct flange.
3. All other openings come with standard 1-inch duct flange.
4. Left and right hand versions shown.
A
4-inch Ø Left Hand Fresh Air
Take-Off Intake
4.25 inches
C
Optional Front
Supply
(4.25-in. Flange)
Fresh Air
Discharge
Collector Box
FIGURE 22 - FRESH AIR OPENING WITH MOTORIZED DAMPER – LEFT AND RIGHT HAND UNIT SHOWN
B C
8 12
12 14
16 18
C
4-inch Ø Fresh Air
Take-Off Intake
Optional Front Supply
(4.25-inch Flange)
Fresh Air Discharge
Collector Box
4.25-inch Return Air
Flange
Optional 24V
Molex Connection
for Surface Mount/
Remote Mounted
Thermostat
Unit Switch
Plate
SECTION 1 - INSTALLATION
A
B
3 inches
Ø 7/8-inch
Power
Entrance
Ø 7/8-inch
Control
Entrance
(Knock-Out,
Both Sides)
Riser
Opening
Knock-Outs
(All Three
Sides)
LD27634
31
1