F) IMPORTANT
Free access must be maintained to and around the heater
for servicing purposes and the air supply to the heater
must not be restricted in any way. Combustible materials
must not be stored adjacent to the heater.
If at any time a gas leak is suspected, turn OFF the gas
supply at the meter and contact the local gas undertaking
immediately.
All Powrmatic heaters use gas and electricity to power
them, they may also contain moving parts such as pulleys
and belts. It would be hazardous to tamper with or attempt
to service unless you are a competent person in the eld of
Gas and Electrical work.
If you have any safety questions reference the servicing
and installation of any of our heaters please do not hesitate
to contact our head oce for expert advice. Your safety is
paramount to us.
Gas Safety (Installation & Use) (Amendment)
Regulations
It is law that all gas appliances are
installed, adjusted and, if necessary,
converted by qualied persons* in
accordance with the current issue of the
above regulations. Failure to install appliances
correctly can lead to prosecution. It is in your own
interests and that of safety to ensure that the law is
complied with.
* An approved class of person listed on the gas safe
register.
The HEM Range are gas-red insertion heaters covering
a range of heat outputs from 10.0kW to 200.0kW. They
are certied for use on Natural Gas, Group H - G20, and
Propane - G31 only. Appliance Categories are Cat II2H3P
(GB, IE).
HEM heaters are based on aluminised mild steel tube
heat exchanger elements with each tube having dedicated
inshot burners, a closed combustion circuit and have an
internal exhaust fan, mounted downstream of the heat
exchanger, to evacuate the products of combustion and
draw in air for combustion, a fully automatic control for
ignition, ame sensing, gas supply control and safety
functions.
Standard units are for internal use and are supplied
without a burner/controls housing for insertion into air
handling units or duct sections. Each unit is tted with a
condense drain point from an all stainless steel exhaust
box. Optional items include a room sealed burner/controls
housing, T316 stainless steel heat exchanger tubes and
units specically designed for fresh air input and where
condensate may be generated.
IMPORTANT
Service and Maintenance Engineers shall
ensure that replacement items are tted,
adjusted and set in accordance with the
data and detail set out in these instructions. If in doubt
consult Powrmatic Technical Department.
Gas Safety (Installation & Use) Regulations 1998
It is law that all gas appliances are
installed, adjusted and, if necessary,
converted by qualied persons* in
accordance with the current issue of the
above regulations. Failure to install appliances
correctly can lead to prosecution. It is in your own
interests and that of safety to ensure that the law is
complied with.
* An approved class of person listed on the gas safe
register.
1.1 Introduction
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