0108X1DHGBEN
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SECTION 6 GAS CONNECTION
6.1 Connection to a gas service may only be carried by
suitably qualified persons. The gas installation must
comply with the rules in force using materials
appropriate for gas service installations.
6.2 Check that the gas category is in accordance with the
data described on the air heater.
6.3 An adequate gas supply sized to provide the dynamic
pressure for the volume required by the air heater(s)
is essential to maintain the nominal heat input.
6.4 A 90
°
action gas service tap and, to facilitate
servicing, a disconnect union fitting must be provided
adjacent to the appliance, see figure 10.
6.5 Ensure that a gas service includes a filter and has
been tested and purged in accordance with prescribed
practice prior to commissioning and taking the air
heater into service.
Fig. 10
GAS CONNECTION DETAIL
NOTE : Gas tap must be fitted to fall closed !
WARNING: NEVER use a FLAME to test for GAS Soundness !!!
SECTION 7 ELECTRICAL CONNECTION
THE CRITERIA IN SECTION 6 MAY BE SUPERSEDED BY AN AIR HANDLER MANUFACTURER. CLAUSES 7.3, 7.4 &
7.6 MUST HOWEVER BE OBSERVED
7.1 The Electrical installation may only be carried out by
suitably qualified persons observing the rules in
force.
7.2 Check that the electrical specification is in
accordance with the specified data on the air heater.
A unique appliance wiring diagram is supplied as a
separate document attached to this one, plus an
additional copy is attached to the air heater.
7.3 These appliances
must
be earthed.
7.4 A separate lockable electrical isolator for each heater
must be provided adjacent to the appliance and in
sight of the service access panel. The isolator must
have a contact separation of at least 3.0 mm on all
poles.
7.5 Ancillary controls are required to provide timed heat
cycles, room comfort temperature level, frost
protection, override air circulation etc. These are not
included with the appliance and should be ordered
separately.
7.6 Ensure when planning the external appliance control
circuitry, that power will be supplied at all times to
the air heater, even when it is control switched in
the 'heat-off' mode. This is necessary to ensure that
the fan can operate independent of the heating
control. Therefore,
Never
incorporate automatic
controls that electrically isolate the appliance.
NOTE:
EURO-X 1000 D AIR HEATERS ARE SUPPLIED WITH EXTERNAL CONTROL CIRCUITS BRIDGED. THE AIR
HEATER/S WILL OPERATE CONTINUOUSLY UNLESS THESE ARE REMOVED AND TIME AND TEMPERATURE
CONTROLS SUBSTITUTED FOR THEM
OPEN
