Johnson Controls VB09, Installation, Operation And Maintenance Manual

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FORM 145.18-IOM1
ISSUE DATE: 8/30/2018
SECTION 1 - INSTALLATION
TABLE 5 - UNIT SUPPLY OPENING SIZES
HORIZONTAL OPENINGS
TOP OPENING
SINGLE HORIZONTAL DOUBLE HORIZONTAL
TRIPLE
HORIZONTAL
MODEL
NO TOP
OPENING
TOP OPENING
NO TOP
OPENING
TOP OPENING
NO TOP
OPENING
9 14W x 12H 14W x 6H 14W x 8H Not Available Not Available 12 x 8
12
14W x 14H 14W x 6H 14W x 10H Not Available Not Available 12 x 8
15 16W x 14H 14W x 6H 14W x 10H Not Available 14W x 8H 14 x 12
18 Not Available 14W x 6H 14W x 12H 14W x 6H 14W x 10H 14 x 12
24 Not Available 14W x 10H 16W x 14H 14W x 6H 14W x 10H 14 x 12
30 Not Available 14W x 6H 20W x 14H 14W x 6H 16W x 12H 18 x 16
36 Not Available 14W x 10H Not Available 14W x 6H 16W x 14H 18 x 16
NOTES:
1. Unit mounted supply grilles are supplied as double-deflection type.
2. Grilles for unequal airflow applications (for example, unit mounted plus ducted supply) are provided with integral opposed blade dampers.
3. All grilles are supplied in standard appliance white painted finish.
4. Grilles are shipped loose for field installation upon completion of cabinet/ductwork/drywall installation.
5. Top opening size does not change. When combined with any other discharge arrangement, it is included in determining horizontal opening
grille size.
6. Openings marked Not Available result in face velocities outside the recommended 300–500 FPM range.
7. Hi-static blower option or single horizontal discharge openings with unit mounted supply grille are not recommended.
TABLE 6 - UNIT SUPPLY FACE VELOCITY (FPM)
MODEL
HORIZONTAL OPENINGS
TOP OPENING
SINGLE HORIZONTAL DOUBLE HORIZONTAL
TRIPLE
HORIZONTAL
NO TOP
OPENING
TOP OPENING
NO TOP
OPENING
TOP OPENING
NO TOP
OPENING
9 291 272 219 Not Available Not Available 510
12
316 344 221 Not Available Not Available 645
15 354 314 283 Not Available 236 471
18 Not Available 391 294 294 235 587
24 Not Available 397 273 364 291 729
30 Not Available 416 276 339 269 538
36 Not Available 410 Not Available 385 261 610
NOTES:
1. Tabulated face velocities do not account for supply grille free area factor. Face velocities at supply grille are higher depending on grille type.
2. Face velocities are based on the nominal rated CFM and feet per minute (FPM).
3. Face velocities are calculated by taking the average across all openings. Tabulated top opening face velocity is only for units with single
top opening and no horizontal openings.