1801UDSBD-4E,--EN, Pag. 15/35
A polarisation switch with green indicator light is fitted inside
the heater to check if Line, Neutral and Earth are connected
correctly. If this is the case, the green light will glow when
pushing on the switch. If the light does not glow, check
earth, line and neutral connections.
The electrical installation may only be carried out by an
appropriately qualified person current to IEE Regulations. The
supply line to the heater should include a main switch. The
minimum
clearance
distance between the contacts must be
more than 3 mm.
All electrical connections should be made in the heater control
compartment. Screw type terminals are provided. Connections
should be in accordance with the terminal markings and the
wiring diagram affixed to the air heater.
Attention :
Serious damage can occur to burner relay when faulty
connection of thermostat, reset switch or burner failure
lamp.
Switching of wires for reset switch and flame failure (e.g.
in a remote control box) will destroy the burner relay.
The minimum external control required for the air heater is
a room thermostat.
It is essential that the main input line
and neutral to terminals L and N remain live at all times
even when the heater is switched off to ensure correct
operation of the unit.
DANGER : THIS APPLIANCE MUST BE
EARTHED.
THERMOSTAT LOCATION
Do not attempt to control more than 1 air heater from
a single thermostat or control panel unless a properly
wired relay is fitted. Follow the instructions supplied
with such panels.
The location of the room thermostat or sensor is very
important. It should not be positioned on a cold wall or
cold surface. Avoid location in draughty areas or where it
may be influenced by heat sources e.g. the sun, process
plant, etc. The thermostat should be mounted on a
vibration free surface and mounted about 1,5 metres
above floor level. Follow the thermostat manufacturers
instructions. The thermostat must be suitable for potential
free contacts.
Ensure that all cables and installers wiring are fixed to
the gas pipe and that they do not touch the combustion
collector box.
11
ELECTRICAL CONNECTION
MPORTANT:
If the reset button requires activating for any reason,
the cause must be determined. After determining
and correcting the problem, restart the heater and
monitor long enough to ensure proper operation
(approx. 5 minutes).
An orange indicator light is fitted on the heater to signify
when the burner is on.
A burner reset switch with red indicator light is fitted on the
heater. To add a remote reset button, make connections to the
terminals in the electric box as indicated on the wiring diagram.
Check the installation prior to start-up
12
START-UP
Check suspension. Unit must be secure.Verify that no other
parts are fitted which are not individually supported and
secured.
Check clearances from combustibles. Requirements are in
section 5.
Check vent system to be sure that it is installed according
to the instructions in section 7, venting requirements.
Check piping for leaks and proper gas line pressure. Bleed
gas lines of trapped air.
Check electrical wiring and ensure that wiring conforms
with the wiring diagram. Be sure all wire sizes meet
requirements.
Check polarity. Verify that line voltage exists between the
black “L1” and earth ground.
Verify that the appliance is earthed by conducting an earth
continuity test.
Heater start-up
Warning:
For your safety, follow the instructions exactly other-
wise damage or injury could occur.
•
This heater does not have a pilot flame. It is equipped with
an ignition device which automatically lights the burner.
Do not try to light the burner by hand.
•
Before operating, smell all around the heater area for gas.
Be sure to smell next to the floor because propane gas
is heavier than air and will settle near the floor.
• Do not use this appliance if any part has subjected
to water ingress. Immediately call a qualified service
technician to inspect the appliance and to replace any
part of the control system and any gas control.
• When overheating occurs or when gas supply is not
turned off, shut the manual gas tap before turning off the
electric power.
