N
L
1
2
1
2
3
4
5
6
7
8
Normal
Boost
1
2
3
4
5
4
5
6
ON
FRONT
UP
Wiring
Service
19
10.0 Maintenance
Important: Before servicing ensure that the
appliance is isolated from the electrical
supply. After isolating from the electrical
supply, allow one minute for the fans to stop
rotating before servicing the appliance.
1. Lift off the front cover by releasing the two
screws and lifting upwards.
2. Remove the air inlet filter by pulling forwards.
3. Taking note of the offset sliders, carefully remove
the heat exchanger by gently pulling forwards.
4. Check both fans and fan compartments for
deposits. Clean as necessary, making sure that you
5. Remove the condensate tray by pulling forwards.
Check and clean if necessary.
6. Check the condition of the four heat exchanger
sealing strips and front cover seal. Replace seals as
necessary.
Note: Ensure the heat exchanger is located
correctly in the offset sliders.
Pull forward & remove
the cover.
Remove screws
Pull out & clean the
Condensate Tray
Air inlet
filter. Pull
out, brush
& vacuum
clean.
11. Re-assemble in reverse order and re-fit the
front cover ensuring it makes a good seal.
Fig. 17
The following cleaning and disinfection routine
should be conducted every 6 months to maintain
the efficiency and hygiene of the unit. It should be
carried out by a suitably qualified person.
Care should be taken when using sterilising
solutions. Gloves and eye protection are the
minimum levels of personal protective equipment
required. Do not spill the cleaning solution on any
other surfaces, especially fabric as bleaching
damage could occur.
The sterilising solution used should be a 'Milton'
type solution diluted 1 to 20, or 'Instachlor PR1000'
tablets (or similar), these will then give a 1,000
ppm available Chlorine solution.
7. Carefully wash the heat exchanger, making sure
that the solution penetrates the cell plates. Take
care not to loosen the plates. Dry thoroughly before
refitting.
8.Drain and clean the condensate pipe using a
bottlebrush, or similar, soaked in the sterilising
solution.
9. Wipe down all parts showing signs of fungal /
mould growth with the sterilising solution.
10. All parts should be well rinsed with clean water
and dried after cleaning.
FR
NT
O
UP
Use strap to pull
out heat
exchanger.
12. Check the condition of the ductwork system,
the soundness of all joints and repair if necessary.
Carefully vacuum the filter. Replace if necessary.
do not disturb any cables or connections.