2
AFTER INSTALLING THIS UNIT,
PLEASE PASS ONTO END USER
DO NOT THROW AWAY
Appliance Symbols
Recommendation
Read
instruction
manual.
Risk of
electric
shock.
General
hazard
safety alert.
Disconnect the
mains supply
before removing
this cover.
Wait until all machine
components have
completely stopped
before touching them.
Disconnect the
mains supply before
removing this cover.
1. A short piece of flexible ducting,
approximately 300mm long is used to
connect the unit to the ducting system.
2. Any flexible ducting used must be pulled
taut.
3. A minimum distance of 300mm between
the unit and any sharp bends in duct work.
4. Ducting should be insulated where it
passes through unheated areas and voids
with the equivalent of at least 25 mm of
a material having a thermal conductivity
of ≤0.04 W/(m.K) to reduce the possibility
of condensation forming. Where a duct
extends externally above roof level the
section above the roof should be insulated
or a condensate trap should be fitted just
below roof level.
5. Ducts within the building heated envelope
between the external terminals and the
unit’s From Atmosphere and To Atmosphere
ports should be insulated and wrapped
additionally with a vapour barrier outside
the insulation.
6. Where ducts pass through fire barriers,
they must be appropriately fire stopped
in accordance with the requirements of
Building Regulations.
7. A ducting condensate drain to be fitted on
vertical To Atmosphere duct work.
8. Ducting must be installed in such a way
that resistance to airflow is minimised.
9. Ducting connected to the From Atmosphere
and To Atmosphere ports, must be to/
from the external air outside the building
envelope.
10. Duct joints to the unit’s duct ports must be
fixed using a method that ensures a long
term seal is achieved. If using a short piece
of flexible ducting secure using a hose
clamp, do not over tighten.
11. A minimum distance of 2m exists between
the external supply and exhaust terminals..
Before obtaining access to terminals
or removing this cover, all supply
circuits must be disconnected.
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