General Description / Physical Specifications - Zehnder Rittling ComfoAir Compact CA155WM Installation Instructions Manual

1.0 General Description / Physical Specifications

1.1 Overview
The ComfoAir CA155WM / CA155CM / CA185WM is a ventilation system designed to provide improved
1.1.1
indoor air quality in dwellings. As a whole house system, the unit continuously extracts air from the
non-habitable rooms and supplies fresh, filtered air to habitable rooms. Heat that is recovered from the air
drawn from the bathrooms and kitchen is passed through a heat exchanger and the heat that is recovered is
transferred, to temper the supply air in habitable rooms to provide a comfortable indoor environment.
A boost speed facility is provided to increase the ventilation rate, e.g. when cooking or showering, providing a
1.1.2
comfortable indoor environment. A ZGS2 Switch Live boost switch can be used to provide this operation
(See Section 2.8.5
Ancillary Items Required
1.1.3
ComfoAir CA155WM / CA155CM
125mm Ducting (rectangular ducting can be used,
where appropriate)
ZGS2 Hardwired switch providing switching
between low and high (option)
Packaging includes:-
1.1.4
1 x Heat Recovery Unit
1 x Wall Fixing Bracket (ComfoAir CA155WM / CA185WM) or
2 x Ceiling Fixing Bracket (ComfoAir CA155CM)
1 x Installation Instructions
1 x User/Homeowner Guide
Warning: This appliance can be used by children aged from 8 years and above and
1.1.5
persons with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction concerning use of
the appliance in a safe way and understand the hazards involved. Children shall not
play with the appliance.
Siting Notes: Where an open-flued oil or gas-fuelled appliance is installed in the
1.1.6
kitchen, extract ventilation can cause the spillage of flue gases. Care must be taken
to ensure ventilation is reduced appropriately, as set out in the Building Regulations.
Kitchens with solid-fuel appliances should not have extract fans fitted.
The design, material specification and installation must only be carried out by
1.1.7
"competent persons". Electrical installation must be carried out by a qualified
Electrician.
Electrical).
ComfoAir CA185WM
150mm Ducting (rectangular ducting can be used,
where appropriate)
ZGS2 Hardwired switch providing switching
between low and high (option)
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