New Mini Direct Drive Range

Direct Drive Air Handling Units with neat & compact design, available in five standard unit sizes.
A compact and economical range of units with directly driven backward curved EC centrifugal fans.
Suitable for internal mounting as standard, models suitable for external mounting are available to order.

FAQs Answered:

Performance range up to 2.25m³/s.
EC backward curved centrifugal fans
Anodised Aluminium pentapost frame
Double skinned panels
Compact direct drive units
Internal standard
Optional external unit
1 Year Guarantee

Updated to incorporate modern energy efficient EC motors these simple Direct Drive Air Handling Units have a neat and compact design. Access can be on the left or right hand side. Units can be internal or external (external specified at time of order.

Mini Direct Drive Unit - Duties from 0.05m³/s to 2.25m³/s
A compact and economical range of units with directly driven backward curved EC centrifugal fans. There are five standard sizes with all units the fans incorporate speed controllable via the EC motor for added flexibility. The standard unit consists of a 100mm M5 panel filter, l.p.h.w. or electric heater, direct drive centrifugal fan and flexible connectors.

Suitable for internal mounting as standard, models suitable for external mounting with inlet weather cowl are available to order.

Specification
Direct Drive Fans have backward curved centrifugal impellers factory matched to an energy efficient EC motor, statically and dynamically balanced to ISO 1940 G6.3 for smooth long life operation. All motors incorporate EC motor controls o provide fully variable speed control via a 0-10V input. Motors and electronics are protected to IP44 as a minimum and are suitable for operating in ambient conditions of up to 40°C and atmospheres up to 95% R.H.

Flexible Connectors
The Flexible Connectors are manufactured from Revertex JPT 20 with ductmate flanges to DW142.

LPHW Heater Batteries
L.P.H.W. Heater Batteries are constructed from copper tube, mechanically bonded to aluminium fins with the complete assembly housed in a galvanised steel casing. The coil headers and return bends are totally enclosed within the air handling unit casing. Flow and return connections are located on the same side of the unit and have male B.S.P. thread. L.P.H.W. Heater Batteries are pressure tested under water to 250p.s.i.

Electric Heater Batteries
Electric Heater Battery elements are constructed from Nichrome 5 spiral resistance wire surrounded by magnesium oxide powder and sheathed in stainless steel. The elements are carried on a galvanised steel frame. All electric heaters incorporate a thermal cut out device. Electrical connections are via a flush mounted terminal box on the outside of the air handling unit casing.

DIMENSIONS:

Standard Silencer (single skinned)

Unit
Diffuser
Stock Ref Number
Dimensions in mm
Approx
Weight kg

C
D

D1
54BC1
360
660
18

D2
54BC2
420
660
21

D3
54BC3
520
660
32

D4
54BC4
720
660
40

D5
54BC5
720
960
46

D6
54BC6
720
1260
50

Outlet Diffusers for Connection to Silencer: This item is essential when connecting a silencer directly to the discharge side of a fan section. The flanges at either end match the AHU and silencer dimension.
Inlet Damper

Unit
Inlet
Damper
Stock Ref No
Rigid
Connector
Stock Ref No
Flexible
Connector
Stock Ref No
Dimensions in mm
Approx
Weight kg

C
D
X

D1
57CD-66
54MC1
68FC-1
360
660
165
6

D2
57CD-2
54MC2
68FC-2
420
660
165
6.5

D3
57CD-3
54MC3
68FC-3
520
660
165
7

D4
57CD-4
54MC4
68FC-4
720
660
165
9

D5
57CD-5
54MC5
68FC-5
720
960
165
12

D6
57CD-6
54MC6
68FC-6
720
1260
165
25

Dampers are supplied with extended spindles - suitable for motorisation as standard. When using a damper, a rigid connector will also be required.

Unit A B C D E F G H
D1-22 1560 660 600 360 300 758 220 n/a
D3-35 1560 660 600 520 460 780 220 300
D4-31 1560 660 600 720 660 780 220 300
D5-35 1710 960 900 720 660 850 220 450
D6-45 1710 1260 1200 720 660 850 220 450

PDF DOWNLOADS:

Overview

Updated to incorporate modern energy efficient EC motors these simple Direct Drive Air Handling Units have a neat and compact design. Access can be on the left or right hand side. Units can be internal or external (external specified at time of order.

Mini Direct Drive Unit - Duties from 0.05m³/s to 2.25m³/s
A compact and economical range of units with directly driven backward curved EC centrifugal fans. There are five standard sizes with all units the fans incorporate speed controllable via the EC motor for added flexibility. The standard unit consists of a 100mm M5 panel filter, l.p.h.w. or electric heater, direct drive centrifugal fan and flexible connectors.

Suitable for internal mounting as standard, models suitable for external mounting with inlet weather cowl are available to order.

Specification
Direct Drive Fans have backward curved centrifugal impellers factory matched to an energy efficient EC motor, statically and dynamically balanced to ISO 1940 G6.3 for smooth long life operation. All motors incorporate EC motor controls o provide fully variable speed control via a 0-10V input. Motors and electronics are protected to IP44 as a minimum and are suitable for operating in ambient conditions of up to 40°C and atmospheres up to 95% R.H.

Flexible Connectors
The Flexible Connectors are manufactured from Revertex JPT 20 with ductmate flanges to DW142.

LPHW Heater Batteries
L.P.H.W. Heater Batteries are constructed from copper tube, mechanically bonded to aluminium fins with the complete assembly housed in a galvanised steel casing. The coil headers and return bends are totally enclosed within the air handling unit casing. Flow and return connections are located on the same side of the unit and have male B.S.P. thread. L.P.H.W. Heater Batteries are pressure tested under water to 250p.s.i.

Electric Heater Batteries
Electric Heater Battery elements are constructed from Nichrome 5 spiral resistance wire surrounded by magnesium oxide powder and sheathed in stainless steel. The elements are carried on a galvanised steel frame. All electric heaters incorporate a thermal cut out device. Electrical connections are via a flush mounted terminal box on the outside of the air handling unit casing.

Technical

DIMENSIONS:

Standard Silencer (single skinned)

Unit
Diffuser
Stock Ref Number
Dimensions in mm
Approx
Weight kg

C
D

D1
54BC1
360
660
18

D2
54BC2
420
660
21

D3
54BC3
520
660
32

D4
54BC4
720
660
40

D5
54BC5
720
960
46

D6
54BC6
720
1260
50

Outlet Diffusers for Connection to Silencer: This item is essential when connecting a silencer directly to the discharge side of a fan section. The flanges at either end match the AHU and silencer dimension.
Inlet Damper

Unit
Inlet
Damper
Stock Ref No
Rigid
Connector
Stock Ref No
Flexible
Connector
Stock Ref No
Dimensions in mm
Approx
Weight kg

C
D
X

D1
57CD-66
54MC1
68FC-1
360
660
165
6

D2
57CD-2
54MC2
68FC-2
420
660
165
6.5

D3
57CD-3
54MC3
68FC-3
520
660
165
7

D4
57CD-4
54MC4
68FC-4
720
660
165
9

D5
57CD-5
54MC5
68FC-5
720
960
165
12

D6
57CD-6
54MC6
68FC-6
720
1260
165
25

Dampers are supplied with extended spindles - suitable for motorisation as standard. When using a damper, a rigid connector will also be required.

Unit A B C D E F G H
D1-22 1560 660 600 360 300 758 220 n/a
D3-35 1560 660 600 520 460 780 220 300
D4-31 1560 660 600 720 660 780 220 300
D5-35 1710 960 900 720 660 850 220 450
D6-45 1710 1260 1200 720 660 850 220 450

Downloads

PDF DOWNLOADS:

!!! Catalogue Pages