page no. 29 of 68
LX Range Users, Installation & Servicing Instructions Doc Ref M110 issue 1.0 Dec 2020.
Recommended maximum drop rod length is 1.8m.
Permanent
suspension
supports
LX F
Permanent
suspension
supports
Temporary
supports
LX F/V
If reducing noise levels is important the heater should be
insulated from the structure by installing it on suitable
anti-vibration mountings. In all such cases and when the
heater is suspended it is essential that all gas, duct, and
electrical connections to the heater are made with flexible
connections to maintain continuity of connection.
Minimum clearances detailed in section 2.1.1 for
installation and servicing must be observed. Any
combustible material adjacent to the air heater and the
flue system must be so placed or shielded as to ensure
that its temperature does not exceed 65 °C.
Wall Mounting Brackets & Swivel Brackets are also
available - refer to supplement sheets supplied with items.
2.1.4. Air Distribution System
2.1.4.1. General
LX F/Duo discharges air in two directions, significantly
enhancing the effective coverage of the heater and
leading to a more even warmth distribution especially
within modern well insulated buildings. This in-turn offers
a potential saving on both capital and installation costs.
LX D and LX C models are designed for use with ductwork
to more precisely define the point of air delivery, and /or
provide ducted return air or ducted fresh air inlet.
The system should be checked to ensure that the duct
work installation has been carried out in accordance with
the design requirements.
Particular attention should be given to the correct
arrangement of delivery ducts and registers, return air
ducts and grills and general adequacy of return air paths.
Ensure that the total duct system resistance does not
exceed the available air pressure of the equipment
supplied refer to section 1.2. If the duct system resistance
is less than the available air pressure of the equipment
supplied additional resistance must be introduced e.g. by
adjustment of duct outlet nozzles and balancing of the
duct system. Conversely if the duct system resistance
is greater than the available air pressure of the heater
supplied the system resistance must be reduced. (refer to
section1.3.10.2 - Ducted Units)
All ducting must be independently supported of the
heater. Joints and seams of supply ducts and joints
between ancillary components must be securely fastened
and made airtight using appropriate sealants or sealing
strips. If required the duct work should be insulated to
reduce heat loss.
2.1.4.2. Noise Reduction
Ducting should be connected to the heater spigots via an
airtight flexible coupling of noncombustible material.
Before fitting the coupling it must be ensured that a
minimum clearance of approximately 15mm will be
maintained between the ends of the ducting and the
heater spigots.
Sound attenuators may be fitted in inlet and outlet ducts
to reduce airborne fan noise. If sound attenuators are
used then these must be factored into the total static
resistance of the ductwork. Materials used in outlet sound
attenuators must be capable of withstanding 100°C air
temperature without any deterioration.
2.1 Fitting the Unit
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