Doc No. 700015 Page 3 of 36
1.1 Health and Safety
Nortek gas fired heaters must be installed in
accordance with the relevant provisions of the
Gas Safety (Installations and Use) Regulations
1998. Due account should also be taken of any
obligations arising from the Health and Safety
at Works Act 1974 or relevant codes of
practice. In addition the installation must be
carried out in accordance with the current IEE
wiring regulations (BS 7671), BS 6896
(Industrial & Commercial) and any other
relevant British Standards and Codes of
Practice by a qualified installer. Isolate all
electrical supplies to the heater & controller
before proceeding.
For your own safety we recommend the use of
safety boots and leather faced gloves when
handling sharp or heavy items. The use of
protective eye wear is also recommended.
1.2 Model
Definitions
VSXUT
= AmbiRad Vision High efficiency U
Tube heater with painted powered burner,
deep profile stainless steel reflector and end
caps, reflector canopy and end caps in Aluzink.
1.3 Heater
Suspension
See fig 1b. Attachment to the heater
support lugs should be made by a ‘speed
link’, D shackle or in the case of drop rods, a
closed formed hook. The hanging attachments
to overhead steelwork etc. must be purpose
made to good sound engineering practice or of
a proprietary type fixing. They must be
adequately fixed and designed to carry the
whole weight of the heater. In the event of
suitable roof steelwork being unavailable,
additional steelwork should be fitted to enable
vertical hangers to be used for suspending the
heaters.
These methods are illustrated in Figure 1.b. If
there are any doubts as to the strength or
suitability of roof steelwork to which heaters are
to be suspended, please refer to a Consultant,
Architect or owner of the building.
The recommended mounting heights for
VSX heaters are given in the table below.
The burner
MUST
be positioned on the
right hand side of the heat exchanger and
mounted on a level horizontal plane. See fig 1a.
Isolate any electrical supply to the
heater and controller before proceeding.
1. Installation
Requirements.
Model
Recommended Mounting Height (m)
kW Horizontal
20
5.5 - 8.0
25
6.0 - 9.0
30
6.5 - 10.0
35
7.0 - 11.0
40
7.5 - 12.0
45
8.0 - 13.0
50
8.5 - 14.0
Figure 1.a.
Burner
Heat Exchanger
