F1 PLENUM SLOT DIFFUSERS
PTBA | Ice Tong
Introduction: PTBA
PLENUM SLOT DIFFUSERS
The PTBA series plenum slot diffuser features “ice tong”
blades that allow for adjustment from horizontal flow to vertical
flow. The “ice tong” blades allow the occupant to easily adjust
the airflow pattern depending on airflow requirements. The
plenum is an integral part of the diffuser and has a drawn inlet
collar to prevent plenum air leakage and simplify installation
of the diffuser. The fully adjustable discharge air pattern from
horizontal to vertical and any point in between makes Krueger’s
PTBA series diffuser an ideal choice for perimeter heating and
VAV cooling applications.
MODEL
PTBA - Plenum Slot Diffuser with ‘Ice Tong’ Type Blades
FEATURES
• Slots: 1, 2, 3, or 4.
• Slot Widths: 3/4” and 1”.
• Lengths: 24”, 36”, 48”, and 60”.
• Adjustable extruded aluminum blades.
• Double metal thickness at slot face for rigidity and
straightness.
PTBA
ACCESSORIES
• Quadrant Damper
• Insulation
• Mounting Tabs
• Plaster Frame
FINISHES
• Standard finish is black face with optional white tees.
• Optional finishes available.
PTBA Dimensional Information
PTBA, INLET SIDE VIEW
PTBA, PATTERN CONTROLLER
F23 EQUALS L MINUS 1/4" (6)
C
D
11"
(279)
E
L
PTBA, AVAILABLE SIZES
C
4 7/8” (124)
6 1/4" (159)
9 3/8" (238)
12 1/2" (318)
15 9/16" (395)
D
4 7/8" (124)
5 1/4" (133)
5 1/4" (133)
5 1/4" (133)
5 1/4" (133)
E
6 3/16" (157)
6 3/8" (162)
6 3/8” (162)
6 3/8” (162)
6 3/8” (162)
L
24" (610) - 36" (914)
24" (610) - 60" (1524)
24" (610) - 60" (1524)
24" (610) - 60" (1524)
48" (1219) - 60" (1524)
NOTE: Dimensions in parentheses are mm.
F1-28
www.krueger-hvac.com | Excellence in Air Distribution
© KRUEGER 2012
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Inlet Size
5" (127) Round
6" (152) Oval
8" (203) Oval
10" (254) Oval
12" (305) Oval
PLENUM SLOT DIFFUSERS F1
PTBA | Ice Tong
PTBA Dimensional Information
PTBA, 1-SLOT CROSS SECTION
W
PTBA, 2-SLOT CROSS SECTION
1/2" (13)
TYP
S
OPTIONAL
INTERNAL
INSULATION
1/4" (6) THICK,
2 LB. DENSITY
FIBERGLASS
LINER DOES
NOT COVER
END CAPS
S
1"
(25)
S
TYP CENTER BLADE
SUPPORT WHEN 'L'
EXCEEDS 24" (610)
1/2" (13)
TYP
1"
(25)
T-BARS BY KRUEGER
PTBA, ADJUSTABLE AIR DISCHARGE PATTERNS
S
1"
(25)
S
T-BARS BY OTHERS
PTBA, AVAILABLE SIZES
S
3/4" (19)
1" (25)
ONE SLOT
PLENUM SLOT DIFFUSERS
1 1/4" (32)
TYP MIN
1/2" (13)
TYP
W
W
1/2"
(13)
W
1-Slot
2-Slot
3-Slot
1 3/4" (44) 3 1/2" (89) 5 1/4" (133)
2" (51)
4" (102)
6" (152)
4-Slot
7" (178)
8" (203)
NOTE: Dimensions in parentheses are mm.
TWO SLOT
FRAME 23A,
T BY OTHERS
FRAME 23B,
CENTER T ONLY
FRAME 23C,
T ON BOTH ENDS
FRAME 23D,
CENTER & OUTER T
FRAME 23EL,
T OPPOSITE OF INLET
FRAME 23ER,
T ON INLET SIDE
FRAME 23GL,
T ON CENTER &
OPPOSITE INLET
FRAME 23GR,
T ON CENTER &
INLET SIDE
© KRUEGER 2012
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Providing You With Air Distribution Solutions
F1-29
F1 PLENUM SLOT DIFFUSERS
PTBA | Ice Tong
PTBA Accessories for Frame 23 Lay-In T-Bar
PTBA, PLASTER FRAME ASSEMBLY
PTBA, PLASTER FRAME ADAPTER, CROSS SECTION
PLENUM SLOT DIFFUSERS
MINIMUM CEILING OPENING
PLENUM 'W' PLUS 1/2" (13) x 'L' PLUS 1/2" (13)
1 7/16"
(37)
FRAMING &
SCREWS
BY OTHERS
1"
(25)
PLENUM 'W' DIMENSION
PLUS 1/4" (6)
PTBA, PLASTER FRAME, FACE VIEW
'W'
NOMINAL 'L' PLUS 1" (25)
3/16"
(5)
1" (25)
'W' PLUS 1" (25)
PTBA, QUADRANT
DAMPER (QD)
PTBA, CENTER NOTCH DETAIL (CN)
FRAME 23 NOMINAL GRID SIZE MINUS 1/4"
4"
(102)
DAMPER
INTERNAL INSULATION
1/4" (6) THICK, 2 LB. DENSITY
FIBERGLASS LINER DOES
NOT COVER END CAPS
OPTIONAL OUTSIDE
T-BAR BY KRUEGER
NOMINAL GRID MINUS 1" (25) OA
DAMPER
OPERATOR
2 9/16" (75)
5/8" (16) CENTER NOTCH
1" (25) T-BAR NOTCH
MOUNTING
TAB OPTION
NOTES: D
imensions in parentheses are mm. MTT1 uses mounting tabs opposite of inlet. MTT2 uses mounting tabs on both sides.
CN = Center Notch; CNT1 = CN+MTT1; CNT2 = CN+MTT2
PTBA, MOUNTING
TABS (MTT)
1 1/2"
(38)
1/4" (6)
© KRUEGER 2012
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