Installation Guide
Harrington Generators International Ltd
Welf-Air Super Compact Installation 1 498-048 Issue C
1.0 General
The Welf-Air Super Compact range of generators
has been designed by HGI to perform
exceptionally well in the confines of a small cabin.
New type mounts are used in the set, so that
vibration is kept to a minimum, when placed on a
cabin floor.
Sound insulation and careful canopy design keep
noise level to an absolute minimum.
The generator engine has been selected for long
life and reliable operation with all its serviceable
items being accessible from the outward facing
side, thus making servicing easy and economic.
The generator is designed for easy install. Do not
hesitate to contact HGI for further advice and
help.
These instructions apply to all variants of this type
machine. LPG versions are available.
2.0 Introduction and Familiarisation
Read the document completely before installing.
PD901-320 (section 11) drawing shows a typical
installation and where the parts supplied are
assembled together. Please refer to this drawing
for dimensions and familiarisation.
Hot air exits the top quarter of the end panel
opposite the air inlet panel. The set is designed to
be pushed up to the right and against a cabin
wall, which should have a louvre panel cut into it.
Other louvres need to be made in the cabin to
allow cool air to enter the generator compartment.
The generator’s exhaust exits vertically. An
exhaust extension tube, clamps and heat wrap
are optional. It is important that heat wrap is
fitted so that operatives do not burn themselves.
It is down to the individual installation engineer (s)
to ensure that the unit is safely and correctly
installed. If in doubt seek qualified advice from
the manufacturer/supplier.
3.0 Standard Installation
3.1 Preparation
The generator is designed to be installed into a
pre-prepared cabin.
3.1.1 Preparing Hot Air Escape Vent
A hot air escape louvre vent should be cut into
the right hand wall of the cabin.
This vent should be a rectangular aperture with
a minimum dimension of 100 mm high x 500
mm wide. It should be positioned 1010 mm up
from the cabin generator compartment floor. All
measurements are made internally. See
drawing (PD901-320 section 11).
Fit a louvre over the vent on the exterior wall to
prevent ingress of weather and detritus from
outside.
3.1.2 Preparing Exhaust Outlet
A horizontal exhaust outlet pipe with an outer
diameter 33 mm should be pre-fitted to the
cabin. This should be positioned approx
1700mm up from the compartment floor. It is
recommended that this be aligned at 103 mm in
from the right hand edge of the generator (see
drawing PD901-320) to keep the exhaust as
upright as possible.
If the wall is a corrugated type this is usually
done in the well of the wall as shown in Fig.1.
3.2 Install Instructions
Place the 50mm
2
foam gasket around the 4
edges of the generator air outlet duct. Position
the generator in the cabin as shown in the
drawing PD901-320. Secure the generator to
the floor using bolt down points provided at
each corner of the unit. (Item A, Fig 2). The
floor must be a solid, flat surface. See drawing
(040-766/00 section 11) for dimensions.
