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nuaire.co.uk 

029 2085 8400

23. 06. 17. Leaflet Number  670901

Installation and Maintenance

FLAT2000L/R Low Energy Positive Input Ventilation Unit

3.0 DIMENSIONS(mm)

Dimensions for the space required can be determined from the 
dimensions shown in figure 10 below.

Allow an additional 32mm for the length of each end spigot and any 
additional room for installation and maintenance e.g. access to screws 
on top and bottom of unit for front cover.

485

100mm dia. or 121 x 60mm interchangeable

spigots supplied with unit

end spigots

Alternative inlet

320

160

Alternative end spigot panels

100mm dia.

spigot shown

121 x 60mm 

Alternative (knock out) 

spigot positions

on rear face 100mm dia. only.

rectangular

spigot indicated

15mm

100mm dia. spigot. 

(103mm dia. x 6mm

shoulder at base 

of spigot)

32

32mm from 

edge of spigot 

shoulder

186.5

148

241

52

267mm 

between 

feet

Front view

End view

Back view

Figure 6.  

4.0 ELECTRICAL DETAILS

Supply - 230V 1 phase 50Hz

It is necessary to allow all pole disconnection of the appliance from the 
supply by incorporating a switch in the fixed wiring in accordance with 
current IEE wiring regulations.

Electrical connection

Please note the electrical connections to the unit should be carried out 
by a qualified electrician. With the PCB cover removed (see figure 4) 
pull the PCB forward to gain access to earth post behind. Connect Earth 
cable to Earth post next to the grommet hole.

Slide PCB into slot and connect the mains supply L and N to the 
terminal block. Ensure the supply cable does not come into contact 
with the PCB transformer by tie wrapping to the slots in the PCB 
enclosure. Ensure that a 3 amp fused spur is fitted on the supply.

4.1 Wiring Details

L  N  E  3  2

L  N  E  SL

Speed selector (with additional 
boost when required)

Main 

connection 

block

PCB cover

Plug connector for
Flatmaster HRM 
(Optional extra)

IMPORTANT

Warning: Ensure that the fan is isolated from the mains supply before 

removing cover.

IMPORTANT

For good EMC engineering practice, any sensor cables or switched live 

cables should not be placed within 50mm of other cables or on the 

same metal cable tray as other cables.

Figure 7.  Customer installation wiring. Adjustments can now be 
made via the access holes without removing the PCB cover. Use a 
small screwdriver to move the slide switches.

Summary of Contents for FLAT2000L

Page 1: ...ling supply grille is usually installed at high level in a central location within the hallway although discharging the air down the length of the hallway away from the front door should also prove acceptable Unit performance may be enhanced if an existing heat source can warm the discharged air e g by locating the discharge grille above a radiator Before commencing installation decide the best po...

Page 2: ...to the wall Rear view of unit shown 2 4 Inlet Outlet grille installation If a fly screen is fitted it should be removed from both the internal and external grille NOTE When installing the internal grille the louvres must slant upwards to ensure the correct air circulation and the avoidance of unpleasant down draughts The outside wall input grille louvres must slant downwards Standard 100mm dia duc...

Page 3: ...a switch in the fixed wiring in accordance with current IEE wiring regulations Electrical connection Please note the electrical connections to the unit should be carried out by a qualified electrician With the PCB cover removed see figure 4 pull the PCB forward to gain access to earth post behind Connect Earth cable to Earth post next to the grommet hole Slide PCB into slot and connect the mains s...

Page 4: ...h is located in this document and includes the replacement of the filter Our part number FLAT FILTERKIT every 12 months this interval may need to be shortened if the unit is operating under adverse environmental conditions 7 0 WARRANTY The unit has a 5 year warranty starting from the day of delivery and includes parts and labour for the first year The remaining 4 years covers parts only This warra...

Page 5: ...tional or incomplete Product Safety Essential Operational Checks Product Condition Installation Project Address Date Of Check Unit Code Unit Serial Number No action required Remedial action required Make safe and corrective action required Figure 10 FLAT2000 unit with cover installled Indicate Inlet Position 3 4 5 or 6 Indicate Supply Outlet Position Approx length of ductwork on inlet 600mm min Ap...

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