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Single or multiple linear slot, individual or continuous application Linear Side Slot Wash Diffuser/Linear Jet Diffuser Fixed, Thermal and Lighted Options
Plenum header boxes, galvanised, insulated and Premi-aire™ versionsSupply and Return OptionsIntegrated fixing systems
Extruded aluminium construction with mechanical locking of assembly Combination damper and discharge pattern controls Frame styles for exposed ‘T’ or Surface Mount
Single or Multi-slot Ceiling DiffuserCSD-13 (13mm SLOTS) CSDE-19 (19mm SLOTS) CSD-19 (19mm SLOTS) CSDE-25 (25mm SLOTS) CSD-25 (25mm SLOTS)Extruded aluminium continuous or discrete length linear slot diffusers to suit modern interiors, while providing unobtrusive draftless air distribution over widely ranging airflows.
Particularly suited to variable volume applications and ideal for perimeter supply in major commercial buildings. Supply and return air configurations are identical in construction except for omission of pattern controls.
• ForusewithdiffuserAdapterCSDA/I,plenumsupplyorlinearduct.• Alignment strips and four end treatments to suit discrete or
continuous lengths.• Upto2.8metressinglepiecelength.For standard universal pattern control/damper, specify CSD or CSDE
For factory set black or white polymer pattern control, specify CSDL or CSDEL
For return air application, specify CSDR or CSDER
Performance for CSD and CSDE fitted with either type of pattern control may be read from the following supply performance data.
Due to a policy of continuous development and improve ment the right is reserved to supply products which may differ slightly from those illustrated and described in this publication.
Model CSD Model CSDE
CSDE shown with optional 12 volt halogen lamps and fitting.Available only for model CSDE192 slot
Horizontal – Left
Typical CSD and CSDE Throw Options
Typical CSDL Section and Available Throw Options
Horizontal – Right
Horizontal – Left Horizontal – Right
Vertical Fully Dampered
Opposed
Opposed
Opposed Unequal
L Type blade available for19 & 25 slot widths only
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Dimensional Data – Series CSD
27B
Notes1. The illustration below is a two slot CSD supply diffuser.
Return air assembly Model CSDR is similar, but with pattern controls deleted.
2. Duct dimensions include 20mm clearance on length and 7mm clearance on width (or specify exact length required).
3. For more critical applications check overall widths and advise your local Holyoake branch when ordering.
TYPE 3CSDE Surface Mount
TYPE 1CSD Surface Mount
TYPE 2Lay-in (exposed ‘T’)
Frame
l Note:- Seismic restraints required but not supplied.
CSDF – Fixed Pattern Slot DiffuserThe Holyoake CSDF Fixed Pattern Slot Diffuser is designed with the fixed pattern blades and frame, to provide an aesthetically pleasing design to suit contemporary building interiors, whilst providing unobtrusive, draft less air distribution over a wide range of airflows.
The Unique diffuser construction provides excellent ceiling effect, particularly suitable to variable volume applications where horizontal throws are required.
Construction:Extruded aluminium continuous or discrete length linear slot diffusers.
Utilising standard CSD 19 or 25 construction components and optional mounting frame in conjunction with a specifically designed fixed pattern profile extrusion.
frame configuration.• Mitredcornersifrequired.•Squareendsonly.•CSD 19 or 25 equivalent only available.
Notes1. Only available as CSD 19 or 25.2. Use CSD Horizontal Performance Data. 3. Refer to your local Holyoake branch for special site requirements.4. Seismic restraints required but not supplied.
CSDF – Fixed Pattern
Horizontal - Left, 1 - DirectionalIllustrated.
Guide Product Weights
Approximate Weight in Kg per metre
2.5
Model
CSDF 25 2 Slot
F29
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Selection Data – Series OHL
29B
CSD-T – Cooling CSD-T – Heating
Thermally Operated – Series CSD-T
CSD-T – Thermally Operated Ceiling Slot Diffuser
UPON HEATING PATTERN CONTROL MOVES DOWN DIRECTING WARM
AIR VERTICALLY.
UPON COOLING PATTERN CONTROL MOVES UPWARDS DIRECTING COOL AIR
ALONG THE CEILING.
DIE CAST CLIP AS DETAILED ABOVE
CAN BE RETROFITTED TO EXISTING
INSTALLATIONS
CSD-T – Pattern Control PositionsCSD-T – Thermally Operated Ceiling Slot Diffuser The Holyoake CSD-T Thermally Operated Ceiling Slot Diffuser is designed to utilise standard CSD Slot Diffuser components, which provide unobtrusive, draft less air distribution over widely ranging airflows. Particularly suited to variable air volume applications and ideal for perimeter supply in major commercial buildings. The unique die cast clip attaches to the pattern blades to provide CSD with a thermal control, enabling energy savings to be made and improvements in room comfort levels. Above 24 Degrees C the CSD-T starts to move the pattern position, providing vertical airflow.
On Multi-Slot diffusers CSD-T is required on the first slot only. Discuss with your local Holyoake branch other options available. Construction:Extruded aluminium continuous or discrete length linear slot diffusers. Utilising Standard CSD components and mounting frame, with a specifically designed die cast clip containing a temperature sensitive alloy, for thermal adjustment of the pattern blades. Features:• CSD-Tthermaloption,togiveCSDaselfpoweredthermalcontrol.• Die cast clip may be retrofitted to existing installations.• Operationiscontrolledbyatemperaturesensitivealloy.• Changestheairdistributionpatternfromhorizontal (ceiling when cooling) to vertical (down to floor in heating).•Energysavingsandimprovementincomfortlevel.•Enablescostsavingstobemade.
Notes1. Fits all standard CSD models.2. Use CSD Horizontal and Vertical Performance Data. 3. On Multi-Slot diffusers, CSD-T is required on the first slot only.4. Refer to your local Holyoake branch for CSD-T quantity required, per slot length
and any special site requirements.5. Seismic restraints required but not supplied.
Guide Product Weights
Approximate Weight in Kg
0.05
0.05
Model
CSD -T Die Cast Thermal Clip
Add to CSD 19 or 25 Weights*
*Refer to your local Holyoake branch for quantities per specific diffusers.
Blank Off used to cover inactive sections of diffuser shipped in 1200mm or 2400mm sections for field cutting and installation. Material: 0.55 Galvanised Steel.
Note: The overall dimension is at the face of the diffuser.
End Styles
Flanged End - Type F is for use where the end of the diffuser terminates away from the wall or partition and is visable.
(These are recessed to accommodate CSD-MF Mounting Frame.)
Open End - Type O is for use when diffuser terminates at a wall or partition, or when the diffuser is to be butted with another diffuser. Also used when field cutting is required.
TYPE FFlange End
TYPE SStop End
TYPE OOpen End
TYPE PPartition End
Stop End - Type S is used where the diffuser terminates at a wall or partition.
Partition End - Type P is used to separate between active and inactive sections of diffuser when part of a continuous length.
Alignment Strips used on installations where alignment of continuous diffuser is desired.
Series CSD – Dimensional Data
30BAlignment Strip
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CSDAI ADAPTER
CSD-MF MountingFrame
Clips To SecureLinear DiffuserInto Mounting Frame
CSDContinuousLinear Diffuser
Plaster CeilingMetal Frame Construction DepictedValid Also For Timber Frame.Patent Pending
The CSD mounting frame (CSD-MF) is a base frame which is designed to be built into a solid ceiling. Once the frame has been installed the CSD is then inserted into this mounting frame to complete the installation.
The CSD-MF offers a vastly improved alternative to the standard method of CSD installation. This system will not only save time for all of the contractors involved (HVAC, ceiling erectors, plasterers etc.) but will also give a much higher standard of finish than was typically able to be achieved.
Normally ceiling slot diffusers are one of the most difficult supply diffusers to install into a solid ceiling. During the process of installa tion it is not uncommon for both the plasterer and the painter to have to carry out remedial work to ensure a reasonable standard of finish is achieved. All of this work is obviously detrimental as it takes time and often damages the linear diffuser and contributes to the poor overall appearance of the CSD.
The CSD-MF is installed as part of the solid ceiling grid system. This allows the supply air boots to be installed when there is clear access to the ceiling space and there is no danger of damaging the high quality finish of the CSD. When it is time to line the ceiling the ceiling erector has a slot to
slide the gib or plaster sheet into. Once the plasterer has “stopped” the ceiling sheets the painter is free to paint the entire ceiling without having to be concerned with masking the CSD which is not yet in place. When everything has been finished to the required standard the CSD itself is just simply pushed up into place to completely conceal the mounting frame.
The CSD-MF has many features designed into it to enable a faultless CSD installation. The mounting frame is equipped with a flexible edge which is fastened to the adjacent steel or wooden ceiling battens, whichever is used. This flexible edge allows for any discrepancies in the ceiling itself.
If the flexible edge does not take up any discrepancies in the ceiling the solid main section of the frame remains rigid to provide an accurate slot for CSD. The frame is also designed to accept the gib or plaster sheet accurately, however if there were discrepancies the plasterer can plaster out those discrepancies.
With all these features the use of the CSD-MF will not only save time in installing the CSD but will also result in a much higher standard of finish for the installation.
Inside Adapter Size ( A ) CSDA-I Adapter(Insulated)
Typical Throw envelopes for CSDA adapter fed CSD section
Velocity – Throw Diagram
Spread 7.2m
Performance NotesGeneral Notes on performance charts for single or multi slot linear diffusers in this section.1. All pressures are Pa (N/m2).2. Projection (throw) values in metres are based upon the performance of a
one metre long active section. When only 300mm is active, the values are 0.6 times those shown. For a 3 metre long continuous length, the values are 1.8 times those shown. See table below:
H : Horizontal projection : Minimum is to a terminal velocity of 0.75m/s and maximum to 0.25m/s.
V : Vertical projection is to a terminal velocity of 0.25m/s.3. Spread is the maximum width of the jet defined by the above velocities.
4. N.C. values are based upon horizontal projection from a three metre active section and a room absorption of 10dB re 10-12 watts.
Vertical projection values are 11dB less than listed.5. N.C. correction for length:
6. Figures for plenum fed diffusers are for essentially zero inlet velocity. The velocity profile is relatively uniform for the length of the active section.
7. Figures for adapter fed diffusers take account of the effect of the adapter and inlet neck on diffuser velocities which tend to be less uniform and produce a velocity profile of the shape shown in the Velocity-Throw diagram above. The 0.25m/s isovel generally shows a projection reduction at the centre of approximately 25%.
CSDA DimensionsCSD-13 CSD-19 CSD-25
Slots D H X D H X D H X1 100 195 46 100 195 53 125 220 60
2 125 220 79 125 245 92 150 245 104
3 150 245 110 150 270 130 200 295 149
4 175 270 143 175 295 168 200 295 191
Notes: 1. For sizes other than shown Standard Height H = inlet Diameter +100. 2. Construction details may vary*. 3. Premi-aire™ versions available*. * Please check with your local Holyoake branch.
Description:The CJD Ceiling Jet Diffuser is an aesthetically designed curved throat linear ceiling mounted slot diffuser, for use in contemporary building interiors.
Its discreet flat face plate can easily be incorporated into the latest ceiling materials, using the purposely designed special CJD-MF Mounting Frame required, providing significant air distribution over a sizeable area and with a high standard finish.
Particularly suitable for VAV applications and where airflow with a superior coanda effect is required.
Construction:Construction is of extruded aluminium in continuous or discrete length. The Unique extrusion design incorporates the air control pattern, allowing for single outlet projection. Extensive throw distances are achieved with minimal spread.
Notes1. All pressures are in Pa (N/m2 ).2. Throw values are given for terminal velocities of 0.75, 0.50 and 0.25 m/s.3. Throw and NC values were produced using Premi-aire adapter fed supply plenum boxes (airflow in and out on opposing sides).4. Horizontal spread is approximately equal to diffuser length.5. Projection (throw) values are based upon the performance of a one metre active section. 6. The NC values are based on a room absorption of 10 dB re 10¯ ¹² watts.7. Seismic restraints required but not supplied.
Air Flow Rate (l/s)
Diffuser
Nominal
Length.
Horizontal @ 0.75 m/s
Projection @ 0.50 m/s
(m) @ 0.25 m/s
2525 50 75 100 125 150
Model CJD
Guide Product Weights
Approximate Weight in Kg per metre
3.17
3.35
4.0
Model
CJD (inc Mounting Frame)
CJD - LED (inc Mounting Frame)
CWD (inc Mounting Frame)
6.5
9.0
9.5
160
65
109
46
48
30
5.5
8.0
9.3
130
55
75
43
30
26
4.5
7.0
9.0
100
45
48
35
18
24
2.8
4.0
8.0
71
37
27
25
8
20
1.6
2.1
7.0
45
30
12
-
4
-
0.4
0.9
5.0
8
26
5
-
1
-
TP
NC
TP
NC
TP
NC
0.9m.
1.2m.
1.5m.
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Series CWD
41B
Linear Side Slot Ceiling Wash Diffuser
Description:The CWD Ceiling Wash Diffuser is an aesthetically designed flat faced ceiling mounted slot diffuser, for use in modern building interiors.
Its low profile face plate can be easily incorporated into the latest ceiling materials, providing unobtrusive air distribution over an extensive area.
Particularly suitable for variable air volume applications and where airflow with greater projection and spread is required.
Construction: Construction is of extruded aluminium in continuous or discrete length and incorporates flat air control pattern blades, allowing for single or bi-directional outlets.
Due to a policy of continuous development and improve ment the right is reserved to supply products which may differ slightly from those illustrated and described in this publication.
Notes1. Horizontal throw projection values are given for terminal velocities of 0.75, 0.50 and 0.25 m/s.2. Spread values are for the maximum width of the jet defined by a terminal velocity of 0.25 m/s.3. Throw and NC values are produced using Premi-aire™ adapter fed supply plenum boxes (including internal baffles).4. When continuous lengths are used, longer throws may be achieved.5. The NC values are based on a room absorption of 10 dB re 10 - 12 watts.
One-Directional
Bi-Directional
NC
Air Flow Rate (l/s)
Horizontal
Projection
(m)
Total Pressure Pa.
NC
Spread (m)
0.75 m/s
0.50 m/s
0.25 m/s
0.25 m/s
900mm Diffuser Length150
36
1.5
1.8
2.7
4.7
28
125
24
1.0
1.6
2.4
4.5
25
100
16
0.9
1.4
2.1
4.2
24
75
9
0.5
0.8
1.8
3.8
23
50
5
0.4
0.7
1.5
3.4
22
25
2
0.3
0.5
0.9
2.0
21
NC
Air Flow Rate (l/s)
Horizontal
Projection
(m)
Total Pressure Pa.
NC
Spread (m)
0.75 m/s
0.50 m/s
0.25 m/s
0.25 m/s
1200mm Diffuser Length175
54
2.2
2.8
3.5
5.9
29
150
38
1.8
2.5
3.3
5.7
25
125
30
1.5
2.2
3.1
5.3
24
100
24
1.3
2.0
2.6
5.1
23
75
18
1.0
1.4
2.0
4.8
22
50
10
0.6
0.9
1.7
4.2
21
NC
Air Flow Rate (l/s)
Horizontal
Projection
(m)
Total Pressure Pa.
NC
Spread (m)
0.75 m/s
0.50 m/s
0.25 m/s
0.25 m/s
1500mm Diffuser Length200
79
2.2
2.5
3.3
7.0
28
175
53
1.9
2.2
2.7
6.9
25
150
36
1.6
2.0
2.3
6.7
24
125
25
1.1
1.8
2.0
6.3
23
100
18
0.8
1.6
1.8
6.1
22
75
10
0.6
1.3
1.5
5.8
21
NC
Air Flow Rate (l/s)
Horizontal
Projection
(m)
Total Pressure Pa.
NC
Spread (m)
0.75 m/s
0.50 m/s
0.25 m/s
0.25 m/s
900mm Diffuser Length150
70
2.1
3.1
4.6
5.2
28
125
48
1.6
2.5
3.6
5.1
25
100
26
1.5
2.2
3.3
4.9
24
75
16
1.0
1.5
2.7
4.8
20
50
9
0.6
1.2
2.2
4.5
19
25
4
0.3
0.5
2.1
4
18
NC
Air Flow Rate (l/s)
Horizontal
Projection
(m)
Total Pressure Pa.
NC
Spread (m)
0.75 m/s
0.50 m/s
0.25 m/s
0.25 m/s
1200mm Diffuser Length175
89
3.3
3.6
6.1
6.1
32
150
62
2.9
2.7
5.7
5.9
29
125
38
1.8
2.3
5.1
5.5
25
100
25
1.5
2.1
4.1
5.3
24
75
16
1.4
1.5
3.3
5.0
20
50
12
0.9
1.3
2.5
4.4
19
6
5
4
3
2
1
6.1
3.6
3.3
0.25
0.50
0.75
One Directional – Throw Diagram (m)
Spread 6.1m
Distance (m)perpendicular
3
2
1
3.3
2.5
2.2
0.25
0.50
0.75
Bi Directional – Throw Diagram (m)
Spread 7m
Distance (m)perpendicular
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43B
Series CJD, CSD, CSDA & CSDF
Diffuser Description Code Examples and Suggested Specifications
CSDE*
CSDA – 19 – 2 SLOT – X 1000 – X DIACSDAI
CSDA/PREM
Holyoake Series CJD Ceiling Jet Diffusers shall be of extruded aluminium construction, complete with a single uniquely curved fixed pattern slot. Series CJD ceiling jet diffusers shall require a special CJD - MF mounting frame to accommodate the unique diffuser profile and provide a straight and secure framework in which to finish the ceiling. A Premi-aire™ adapter fed supply plenum box shall be provided to achieve the optimum airflow performance.
All shall be as manufactured by Holyoake.
Ceiling Jet Diffuser.
End Border Type.
Slot Width
‘L’ Duct Lengthin mm.
No. of Slots.
No. of Slots
Ceiling Jet DiffuserMounting Frame.
Frame Style.
CJD - LED (Factory fitted LED).
LED Driver.Premi-aire™ adapter fed
supply box.
‘L’ Duct Length in mm.
Ceiling Slot Diffuser.
Ceiling Slot Diffuser Adapter (For
separate diffuser)
Holyoake White.Mill Aluminium.
Powder Coat.
End Border Type.
Inlet Diameter (mm)
‘L’ Duct Length in mm
CJD – END ’F’ – X 2800 – CJD-MF – FINISH – OPTIONS
E* = Denotes curved Flange.
Holyoake Series CSD Ceiling Slot Diffusers shall be of extruded aluminium construction, complete with integral combination air pattern control and volume control damper. The number of slots shall be as shown on the drawings and the slot components shall be mechanically locked together to form a rigid assembly. Pattern controls shall be readily adjustable through the slots and shall be finished matt black. CSD Slot diffusers shall be provided with matching Adapters or Plenums and suitable Mounting Frame where shown.
All shall be as manufactured by Holyoake.
CSD – 13 – 2 SLOT – FRAME ‘2’ – END ‘F’ – X 2800 – FINISH – OPTIONS1925
Slot Width.
Holyoake Series CSDF Fixed Pattern Ceiling Slot Diffusers shall be of extruded aluminium construction, complete with a Unique Fixed Directional air pattern control formed as part of the diffuser construction. The number of slots shall be as shown on the drawings. The complete diffuser and pattern control components shall be mechanically locked together to form a rigid assembly. CSDF Slot diffusers shall be provided with matching Adapters or Plenums and suitable Mounting Frame where shown. All shall be as manufactured by Holyoake.
Holyoake Series CSDA, CSDAI and CSDA/PREM Ceiling Slot Diffuser ‘Adapter Boxes’ shall be of either sheet metal construction, with or without non-woven polyester insulation, or manufactured from Premi-aire™ board. A suitably sized galvanised circular, or equivalent oval, inlet spigot is provided.
Holyoake Series CSD - MF Ceiling Slot Diffuser ‘Mounting Frame’ shall be of extruded aluminium construction. The mounting frame shall be able to be installed into the ceiling to form a straight and stable support structure for the ceiling to be finished to. The slot diffuser shall clip into the mounting frame, providing a neat and secure fixing.
All shall be as manufactured by Holyoake.
No. of Slots. Frame Style. ‘L’ Duct Length in mm.
Ceiling Slot Diffuser
Fixed Limited Pattern ‘Snap In’
End Border Type.
* E Denotes curved Flange.
CSDL – 19+ – 2 SLOT – FRAME ‘2’ – END ‘F’ – X 2800 – FINISH – OPTIONS
Slot Width. Holyoake White. Mill Aluminium.
Powder Coat.
Mounting Frame.Galv Plenum.Premi-aire™ adapter fed supply box.+ ‘L’ type ‘Snap - in’ blade only available on CSD / E 19 and CSD / E 25.
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Holyoake Series CSDL Ceiling Slot Diffusers shall be of extruded aluminium construction, complete with ‘Limited Snap In’ fixed air pattern control. The number of slots shall be as shown on the drawings and the slot components shall be mechanically locked together to form a rigid assembly. Pattern controls shall be readily removable through the slots and shall be finished matt black. CSDL Slot diffusers shall be provided with matching Adapters or Plenums and suitable Mounting Frame where shown.
All shall be as manufactured by Holyoake.
CSDEL* 25+
No. of Slots. Frame Style. ‘L’ Duct Length in mm.
Ceiling Slot Diffuser
Thermally Operated
End Border Type.
* E Denotes curved Flange.
CSD -T – 13 – 2 SLOT – FRAME ‘2’ – END ‘F’ – X 2800 – FINISH – OPTIONS
Holyoake Series CSD - T Thermally Operated Ceiling Slot Diffusers shall be of extruded aluminium construction, complete with a Unique Die Cast Clip containing a temperature sensitive alloy; attached to the integral combination air pattern control and volume control damper, (on the first slot only, if multi-slot diffusers). The number of slots shall be as shown on the drawings and the slot components shall be mechanically locked together to form a rigid assembly. Pattern controls shall be readily adjustable through the slots, except thermal blade and shall be finished matt black. CSD - T Slot diffusers shall be provided with matching Adapters or Plenums and suitable Mounting Frame where shown.
All shall be as manufactured by Holyoake.
CSDE-T* 1925
‘L’ Duct Length in mm.
Ceiling WashDiffuser
Mounting Frame
Ceiling WashDiffuser.
CWD – END ‘F’ – X 2800 – CWD - MF – FINISH – OPTIONS
End Border Type.
Holyoake Series CWD Linear Side Slot Ceiling Wash Diffusers shall be of extruded aluminium construction, complete with flat control pattern blades and mounting frame. Pattern controls shall be readily adjustable through the slots and shall be finished in matt black. Series CWD ceiling wash diffusers shall require a special CWD - MF mounting frame to accommodate the unique slimline diffuser profile and provide a straight and secure framework in which to finish the ceiling. A Premi-aire™ adapter fed supply plenum box shall be provided to achieve the optimum airflow performance.
All shall be as manufactured by Holyoake.
Premi-aire™ adapter fed supply box.
Series CSDL, CSD-T, CSD-MF & CWD
44B
Holyoake White. Mill Aluminium.
Powder Coat.
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Series LD, LD-SD, LDH, LDH-SD, LDHF, LDH-CF, LDH-2500, MODULAR & PMFFRAMES Frame Style Options 47BLD Linear Bar Grilles/Diffusers 46-48, 50, 52 & 56BLD-SD Linear Bar Grilles - Adjustable Rear Blades 49, 51, 53, 55 & 57BLDH Linear Bar Grilles - Heavy Duty 54 & 58BLDH-SD Linear Bar Grilles - Heavy Duty - Adjustable Rear Blades 55 & 59BLDHF Linear Bar Grille - Heavy Duty - Floor 54 & 58BLDH-CF Computer Floor Grille 60BLDH-2500 Linear Bar Grilles - Return/Exhaust 61BMODULAR Floor Grilles 60BPMF Plaster Mounting Frame 62B Ordering Codes and Specification 63B
Twelve Frame Styles with Eight Standard Blade Configurations Alternative Frame Widths For Vertical or Horizontal DischargeTrafficable floor grille, computer floor grille
All extruded aluminium construction Blades mechanically compressed into notched mullion Mitred corners in both planes
NotesGeneral Notes to be read in conjunction with performance tables on the following pages.This data is reliable information for cooling, ventilating and heating applications.1. All pressures are Pa (N/m2).2. Minimum throw values refer to a terminal velocity of 0.75 m/s and
maximum to 0.25 m/s, for a 1200mm active section with a cooling temperature differential of 12°C.
The multiplier factors listed in the table below are applicable for other lengths.
3. The NC values are based on a room absorption of 10dB, re 10-12 watts and a 3000mm active section.
Use the following multipliers for other active lengths.
4. Return Intake - When used as a return intake the NC value given will be increased by 4 and the negative static pressure will be 0.8 times the total pressure shown.
Fineline DiffusersSERIES LD linear bar grilles are designed for supply and return air distribution in heating, cooling and ventilating applications which call for diffusers having long or con tinuous slender appearance, fixed air discharge angles of zero or 15 degrees, and installed in walls, floors, sills or ceilings.
CONSTRUCTION is of extruded aluminium face, bars and frame of alloy 6063-T5, notched mullions, mechanically compressed together to form a powerfully bonded core, which is welded at mullion ends to the frame. ‘F’ models for floor use, have double mullions and 30 x 30 x 15 x 3 Solid ‘Z’ frames.
WIDTH maximum for ‘F’ models is:
Continuous traffic: 200mm, Occasional traffic: 300mm. All models can be furnished with mitred 90° corners, or other angles where metal templates are furnished to the factory. Refer illustrations on this sheet for corner descriptions. The minimum length is 200mm. The maximum length for a single section is 2.8m.
Accessory DamperAvailable with opposed blade dampers, lever/screwdriver operated through the face. Specify OBD#1.
Note: When specifying corners ensure to nominate the blade orientation (up or down) if using the 15° blade.
+ Suitable for floor applications* = Return/Exhaust Diffuser
Frame Styles – Series LD
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Dimensional Notes1. Where single piece units are required, maximum length is 2.8 metres. Unless otherwise specified these are furnished with mitred corners. 2. Where continuous lengths greater than 2.8 metres are required, modules will be selected as two end sections (one mitred corner end per section) and the required number of equal length intermediate sections with alignment strips.3. Actual length ‘A’ is ‘D’-17, unless shown to the contrary.4. Other styles may be available, contact your local Holyoake branch
47B
25
A = D – 5 (A = D – 17 OBD Clearance)
D (NOM)D + 31
Style No.1 (Fixed Core)(Suitable for use with RC frame:- see page 216E)
Style No.4 (Fixed or Removable Core)Square Edge
30
A = D – 17D (NOM)
D + 37
30
15
30
A = D – 17D (NOM)
D + 22
15
30
A = D – 17D (NOM)
D + 37
30
15
A = D – 17D (NOM)
D + 22
15
30
30
15A = D – 17
A = D – 17
D (NOM)
D (NOM)
30
32
32D = A
48
Style No.2 (Fixed or Removeable Core)Square Edge
3030
A = D – 17D (NOM)D + 37
30
15
Style No.6 (Fixed or Removable Core) (Flangeless Frame)
Style No.7 (Fixed or Removable Core) (Bevelled Edge Flange)
Style No.7A (Fixed or Removable Core) (Bevelled Edge Flange)
Style LDH-CF (Fixed or Removable Core) (Flangeless Frame)
(Computer Floor)
30
D = A
12 or 20(2 styles)
12
7.5
5.5
D = A
Style No.3 (Fixed Core)(For Cabinet or Duct Edge Mounting)
Style No.4A (Fixed or Removable Core)Square Edge
Style No.4B (Fixed or Removable Core) (Flangeless Frame)
Square Edge
32
5
A = D – 5
17
D(NOM)D + 29
4.5
50
15
30
30
Style No.7B (Fixed or Removable Core) (Bevelled Edge Flange)
Style No. 5 (Fixed Core)(Rear SD Blades not Shown)
4
30
4
30
4
3
3
3 3
3
3
See page 62B for PMF Style Frame, for Plaster Mounting of Flangeless Grilles.
Outstanding performance, and versatility. For con tinuous line use on a large variety of applications. Use as supply or return. Equally efficient for heating, cool ing, ventilating.
Features 3.2mm x 16mm fixed bar-type louvers on 6.35mm spacing parallel to long dimension of diffuser.
The LD600 is available with alternate frame types, refer to page 47B.
When used with the PMF System, see notes on page 62B.
Not suitable for floor applications.
Size & Area m2/m Total Pressure 3 7 11 18 25 34 44 56 69
Note: 1. For deflection settings of 22.5 and 45 degrees, increase the stated sound levels by 1 and 7 NC respectively. 2. For deflection settings of 22.5 and 45 degrees, decrease the stated throws to 80% and 50% respectively. Refer page 190E.
17 mm Style No. 5 Fixed Core Flanged Frame shown. Also available in other Styles on page 47B and 62B.
D A Number of BarsListed Size Opening
50 30 3
75 55 7
100 80 11
125 105 15
150 130 19
200 180 28
250 230 36
300 280 44
350 330 48
Ideal for apartment and hotel rooms this Linear Bar Grille has fixed blades at the front and adjustable blades behind allowing the supply air to be directed horizontally.
The narrow frame and fixed front blades (3.2mm x 16mm) on 6.35mm centres make this an attractive and versatile diffuser.
The LDSD is available in any desired length and can also be supplied with alternative frame types including the PMF system.
When used with the PMF System, see notes on page 62B.
Note: 1. For deflection settings of 22.5 and 45 degrees, increase the stated sound levels by 1 and 7 NC respectively. 2. For deflection settings of 22.5 and 45 degrees, decrease the stated throws to 80% and 50% respectively. Refer to page 190E.
Model LD-615SD 15° deflection - front blades0° - 45° deflection - rear blades6.35mm spacing3.2mm louver
Ideal for apartment and hotel rooms this Linear Bar Grille has angled 15˚ fixed blades at the front and adjustable blades behind allowing the supply air to be directed horizontally.
The narrow frame and fixed front blades (3.2mm x 16mm) on 6.35mm centres make this an attractive and versatile diffuser.
The LDSD is available in any desired length and can also be supplied with alternative frame types including the PMF system.
When used with the PMF System, see notes on page 62B.
Not suitable for floor applications.
Dimensions
17 mm Style No. 5 Fixed Core Flanged Frame shown. Also available in other Styles on page 47B and 62B.
Model LD-1200SD 0° deflection - front blades0° - 45° deflection - rear blades12.5mm spacing3.2mm louver
Dimensions
Note: 1. For deflection settings of 22.5 and 45 degrees, increase the stated sound levels by 1 and 7 NC respectively. 2. For deflection settings of 22.5 and 45 degrees, decrease the stated throws to 80% and 50% respectively. Refer to page 190E.
17 mm Style No. 5 Fixed Core Flanged Frame shown. Also available in other Styles on page 47B and 62B.
Ideal for apartment and hotel rooms this Linear Bar Grille has fixed blades at the front and adjustable blades behind allowing the supply air to be directed horizontally.
The narrow frame and fixed front blades (3.2mm x 16mm) on 12.5mm centres make this an attractive and versatile diffuser.
The LDSD is available in any desired length and can also be supplied with alternative frame types including the PMF system.
When used with the PMF System, see notes on page 62B.
Model LDH-1200/LDHF-1200 0° deflection12.5mm spacing5.1mm louver
The same basic design as Model LD-1200 Linear Diffusers except that the Standard fixed, bar-type louvers are heavier 5.1mm x 16mm as compared to 3.2mm x 16mm.
Floor ApplicationWhere required for floor use, specify LDHF-1200 to signify heavier construction.
LDHF-1200 grilles have double mullions and frame style 4 solid surround.
Continuous traffic maximum width 200mm.
Occasional traffic maximum width 300mm.
Dimensions
Note: Refer page 47B, Frame Style 4, for LDHF Surround.
D A Number of BarsListed Size Opening
50.0 21.0 2
62.5 33.5 3
75.0 46.0 4
87.5 58.5 5
100.0 71.0 6
125.0 96.0 8
150.0 121.0 10
Size & Area m2/m Total Pressure 3 6 10 16 23 31 40 51 63
Model LDH-1200SD 0° deflection - front blades0° - 45° deflection - rear blades
12.5mm spacing
5.1mm louver
Dimensions
Note: 1. For deflection settings of 22.5 and 45 degrees, increase the stated sound levels by 1 and 7 NC respectively. 2. For deflection settings of 22.5 and 45 degrees, decrease the stated throws to 80% and 50% respectively. Refer to page 190E.
The same basic design as Model LD-1200SD Linear Bar Grille except that the standard fixed bar type louvers are heavier 5.1mm x 16mm as compared to 3.2mm x 16mm.
The LDSD is available in any desired length and can also be supplied with alternative frame types including the PMF system.
When used with the PMF System, see notes on page 62B.
Not suitable for floor applications.
D A Number of BarsListed Size Opening
50 30 2
75 55 4
100 80 6
125 105 8
150 130 10
200 180 14
250 230 18
300 280 22
350 330 26
17 mm Style No. 5 Fixed Core Flanged Frame shown. Also available in other Styles on page 47B and 62B.
The same basic extruded design as LD-615 Linear Dif fuser except that the 3.2mm x 16mm fixed bar-type louvers are spaced on 12.5mm centres.
The wider spaced louvers make this diffuser ideal on applications where greater capacity is needed and more free area is desired.
Use as supply or return. Equally efficient for heating, cooling, ventilating.The LD 1215 is available with alternate frame types, refer to page 47B. When used with the PMF System, see notes on page 62B.
Not suitable for floor applications.
DimensionsD A Number
Listed Size Opening of Bars
50.0 21.0 2
62.5 33.5 3
75.0 46.0 4
87.5 58.5 5
100.0 71.0 6
125.0 96.0 8
150.0 121.0 10
Size & Area m3/m Total Pressure 3 5 9 15 20 28 36 46 57
Model LD-1215SD 15° deflection - front blades0° - 45° deflection - rear blades12.5mm spacing3.2mm louver
Dimensions
17 mm Style No. 5 Fixed Core Flanged Frame shown. Also available in other Styles on page 47B and 62B.
Note: 1. For deflection settings of 22.5 and 45 degrees, increase the stated sound levels by 1 and 7 NC respectively. 2. For deflection settings of 22.5 and 45 degrees, decrease the stated throws to 80% and 50% respectively. Refer to page 190E.
Ideal for apartment and hotel rooms this Linear Bar Grille has angled 15° fixed blades at the front and adjustable blades behind allowing the supply air to be directed horizontally.
The narrow frame and fixed front blades (3.2mm x 16mm) on 12.5mm centres make this an attractive and versatile diffuser.
The LDSD is available in any desired length and can also be supplied with alternative frame types including the PMF system.
When used with the PMF System, see notes on page 62B.
Same basic design as Model LD-1200 except that louvers are fixed at 15° deflection. Louvers are spaced on 12.5 centres. Furnished in all standard widths as shown below.
Floor ApplicationWhere required for floor use, specify LDHF-1215 to signify heavier construction.
LDHF-1215 grilles have double mullions and frame style 4 solid surround.
Continuous traffic maximum width 200mm.
Occasional traffic maximum width 300mm.
DimensionsD A Number of
BarsListed Size Opening
50.0 21.0 2
62.5 33.5 3
75.0 46.0 4
87.5 58.5 5
100.0 71.0 6
125.0 96.0 8
150.0 121.0 10
Size & Area m2/m Total Pressure 3 7 12 19 27 37 48 61 75
Note: Refer to page 47B, Frame Style 4, for LDHF Surround.
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Guide Product Weights
Approximate Weight in Kg per metre x 150mm
2.3
3.0
Model
LDH-1215LDHF-1215
5.1
12.5
15°
D - 17
30 22
5
24
A 30
D - 17
30 22
5
24
A 30
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59B
Selection Data – Series LDH-SD
Model LDH-1215SD 15° deflection - front blades0° - 45° deflection - rear blades12.5mm spacing5.1mm louver
The same basic design as Model LD-1215SD Linear Bar Grilles except that the standard fixed bar type louvers are heavier 5.1mm x 16mm as compared to 3.2mm x 16mm.
The LDHSD is available in any desired length and can also be supplied with alternative frame types including the PMF system.
When used with the PMF System, see notes on page 62B.
Not suitable for floor applications.
Dimensions
17 mm Style No. 5 Fixed Core Flanged Frame shown. Also available in other Styles on page 47B and 62B.
Note: 1. For deflection settings of 22.5 and 45 degrees, increase the stated sound levels by 1 and 7 NC respectively. 2. For deflection settings of 22.5 and 45 degrees, decrease the stated throws to 80% and 50% respectively. Refer to page 190E.
Model LDH-CF Computer Floor GrilleHeavy extruded aluminium construction with double mullion support bars notched at each blade intersection. The assembly is compressed mechanically to form a powerful bond between blades and mullions.
Vertical throw units have been independently tested to 500kg concentrated load on an area of 645mm2 (1 square inch) at the centre. Deflection under load is 0.66mm and there is no permanent deflection.
Units are also available with 15° air divergence left, centre 0° and 15° right, in equal sections, to provide a wider spread of discharge air, and a reduction of approximately 20% of rated throw.
Grilles are manufactured in standard 600 x 600 modules, 32 mm thick and are designed to replace any standard floor tile. They are compatible with most computer floor systems.
For Special Size, Thickness and Discharge applications, refer to your local Holyoake Branch.
AccessoriesVolume control damper OBD #2 (adjustable through louver face).
Modular Floor GrillesModular Floor Grilles are available with parallel or cruciform mullions, using 115 x 115mm square LD or LDH – removeable core elements.
Sizing ParametersD = Nominal Duct Size
A = Actual Neck Size
N = Number of Core Elements
D = N x 120 + 20
A = N x 120 + 3
e.g. 2 x 120 = 240 + 20 = 260 Nominal Duct
2 x 120 = 240 + 3 = 243 Actual Neck
Cores may be O degrees or offset 15 degrees to achieve a range of discharge patterns.
Construction is of Style 2 or 7 outer Frame with core and mullion as applicable.
MODULE 600 x 600: 0° DEFLECTION
m3/s 0.174 0.340 0.505 0.672 0.838 1.004
N. C. - 11 20 28 34 39
Throw M 1.0 1.5 3.0 4.5 6.0 7.0
Total Pressure Pa
1 2 5 10 16 22
D D
D
D
600 X 600 47
85 35
* ‘T’
* Dimension ‘T’ (Tile thickness) must be specified at time of order, between limits of 50 and 25mm . Where ‘T’ is less than 32mm, continuous support is required along all four sides to maintain the concentrated load bearing strength.
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Guide Product Weights
Approximate Weight in Kg
Based on configuration and accessories
Based on configuration and accessories
Model
Modular Floor Grilles
LDH-CF
61B
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Selection Data – Series LDH-2500
Model LDH-2500 Return/Exhaust Grille 0° deflection25mm spacing5.1mm louver
DimensionsD A Number of
BarsListed Size Opening
150 120 4
200 170 6
250 220 8
300 270 10
400 370 14
500 470 18
600 570 22
700 670 26
800 770 30
Style No. 1 Fixed Core Flanged Frame shown. Also available in other Styles on page 47B and 62B.
The LDH-2500 Linear Return/Exhaust Diffuser has heavy bar type louvers spaced at 25mm centres. It is available in any desired length and can also be supplied with alternative frame types including the PMF system and RC Frame. When used with the PMF system see notes on page 62B.
Model LDH-2515 is also available - same constuction as the LDH-2500 but with angled 15° fixed blades.Heavy Duty ApplicationWhere heavy duty application is required, specify LDHF-2500 to signify heavier construction. These grilles have double mullions and frame style 4 solid surround. Not suitable for floor applications.
The Holyoake Flangeless Grille Series - PMF, has been developed to keep pace with contemporary interior designs.
The Series PMF is versatile and can be used with all LD Series Linear Bar Grilles.
Designed for sidewall applications* the Grille Series – PMF offers a new approach to interior air supply/return.
For supply and return applications, the Holyoake Series PMF Flangeless Frame Grilles are the least intrusive sidewall supply or return air product on the market.
ConstructionConstructed from extruded aluminium to precise Holyoake quality standards, the Holyoake PMF Plaster Mounting Frame makes flangeless grille installation easy and provides a superior finish.
InstallationThe PMF plaster mounting frame negates the need for any costly additional aperture framing or nogging and is fitted into the wall or bulkhead cavity prior to the wall lining being applied.
The PMF mounting frame can be fitted using rivets, nails, or adhesive, although drive or Tek screws are the most efficient method.
A series of grooves in the mounting frame are provided to prevent screw run-off.
Once the wall lining is in place, the applicator can stop and finish the wall opening up to the PMF frame edge and prepare the surface for paint finishes.
The Series - PMF Flangeless Grille need only be fitted to the complete and finished wall by pushing the grille into the mounting frame firmly, the retaining clip will grip the serrations in the frame and pull the grille up neatly to the wall surface.
* Also suitable for ceiling or floor mounting, with appropriate construction.
• Attractive Appearance
• Designed for Side Wall Applications*
• Versatile
• Multiple LD Core Types
62B
Flangeless Grille Series
Dimensions
Notes1. For ceiling mounting seismic restraints will be required, but not supplied. 2. For floor applications use LDHF versions with double mullions.
Series PMF
PMF LDH 1200 SD illustrated
Guide Product Weights
Approximate Weight in Kg per metre
1.134
Model
PMF Frame
9 Minimum.
Overall Mounting
Frame = D + 70.
Minimum Clear
Opening= D + 10.
Listed Size D
= Nominal Duct Size
(Minimum 75mm).
D - 6.
MountingFrame.
CountersunkMounting Screw.
64
12 Max50
Plasterboard.
Wall Frame.
Supply Duct.
Cut Size
= D - 10.
Single DeflectionBlades SpacedAt 20mm.*
*Optional - please specify ‘SD” versions.
62
Overall = D - 6.
12
6
D-35.
Retaining Clips.
Framing
Plenum / Duct
Acoustic Insulation
Plaster BoardWall Lining
PMF PlasterMounting Frame
Flangeless Linear Grille
F63
Series LD
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63B
Holyoake Series PMF – Plaster Mounting Frame shall be of extruded aluminium construction. PMF Grilles have a flange width no greater than 6mm. The Plaster Mounting Frame is fixed into a wall opening and plaster stopped before fitting of the Flangeless Grille. The Grille shall have blades machine notched into mullions spaced at no greater than 300mm and may have a second row of adjustable ‘SD’ blades if specified. All shall be as manufactured by Holyoake.
Diffuser Description Code Examples and Suggested Specifications
Holyoake White Mill Aluminium or Powder Coat
Holyoake White Mill Aluminium or Powder Coat
Holyoake White Mill Aluminium or Powder Coat
Blade Configuration
(Spacing/deflection)
Removeable Core Frame
Optional Opposed
Blade Damper
Frame Style
Duct Size
LDH 615+ 1200 1215 2500* 2515*
Blade Configuration (Spacing/deflection)
Plaster Mounting
Frame
Bar Grille Series
Duct SizeOptional - Adjustable
Rear Blades
Holyoake LDH-CF Computer Floor supply grilles shall be of extruded aluminium, welded construction, with blades mechanically expanded into double, machine notched mullions spaced at no greater than 200mm centres. They shall be designed to withstand a concentrated load of 500 kg over an area of 645mm2 (1 square inch) at the centre, with no permanent distortion and maximum deflection under load of 0.66mm. Accessory volume control dampers, adjustable through the face, shall be furnished where indicated. The whole assembly shall be as manufactured by Holyoake.
Computer Floor Optional Opposed
Blade Damper
Module Size Tile Depth
Series
Series
LD – 600 – 1 – 2100 x 100 – OBD – RC – FINISHLDH
LDHF LDSD
615 1200 1215
2500* 2515* Modular
Floor Grilles
LDH – CF – 600 x 600 – x 32 – OBD – FINISH
PMF – LD – 600+ – SD – WxH – FINISH
The Holyoake LD Range of linear diffusers are of extruded aluminium construction. Blades shall be mechanically expanded into machine notched mullions spaced at no greater than 300mm centres. Diffusers shall be fitted with accessory dampers and have optional frame styles and finish where indicated. All shall be as manufactured by Holyoake.
* Return/Exhaust Grilles, not suitable for floor applications.
* Return/Exhaust Grilles, not suitable for floor applications. +See Notes on Page B37.
NoteWhen LD Variants are ceiling mounted, seismic restraints are required, but not supplied.