Euro-C 4000 RJL-GBEN
11/26
4.3 Room thermostat siting
Do not attempt to control more than 1 air heater
from a room thermostat or control panel unless a
properly wired relay is fitted. Follow instructions
supplied with such panels.
The siting of the room thermostat is important. It
should not be fitted on an outside wall.
Avoid location in draughty areas or where it may be
influenced by heat sources e.g. the sun, process
plant, etc. The thermostat or temperature sensor
should be mounted on a vibration free surface and
mounted about 1,5 meters above floor level. Follow
the thermostat manufacturers fitting instructions.
The thermostat must be suitable for switching 230
volts.
5.0 COMMISSIONING & TESTING
Appropriately qualified persons may only carry out
the commissioning and testing.
This section should be read and fully understood
before commencing commissioning and testing.
5.1 Electrical check
After completion of the installation and before
switching on the electrical supply to the appliance,
a qualified electrician must carry out a preliminary
check. The following must be checked:
*Check to ensure that electrical cables/wiring do
not touch the hot combustion collector box and
fix them on the gas pipe
*Check that all wiring is connected in accordance
with the appliance circuit diagram;
*Ascertain that the correct fuse value and cable
size has been provided;
*Check to ensure that the appliance is earthen by
conducting an earth continuity test. Connect a
test meter, one lead to the appliance earth
terminal and the other to the mains incoming
earth point at the electrical isolator. A resistance
reading of 1,0 ohm or less must be indicated. If a
higher reading is obtained, check all cable
connections to ensure adequate security and
cleanliness. If problem still exists, it may be
necessary to consult the electricity supply
undertaking;
*Carry out a polarity test. Connect one lead of a
suitable AC voltmeter to earth and connect the
other lead to the live supply terminal (L) at the air
heater. Switch ON the power to the air heater and
check for correct voltage.
The same result should be obtained by connecting
the test leads between live and neutral.
Connect the voltmeter test leads to N and E. A
reading of
±
0V should be obtained. If these tests
do not conform with the above, there is a fault
which must be rectified before proceeding further
with the commissioning;
*Check that a suitable thermostat or control panel
has been fitted;
*Ensure that an electrical isolator with two pole
separation with a minimum air break between
poles of 3,0 mm has been fitted adjacent to the
air heater.
5.2 Gas connection
(gas service connection of ¾”)
Only persons formally qualified to work on gas fired
apparatus may carry out commissioning and
testing.
The whole of the gas service installation including
the meter must be inspected, tested for soundness
and purged in accordance with appropriate
requirements by a qualified person.
CAUTION: Never use a flame for checking gas
soundness
.
5.3 Lighting the air heater
EURO-C 4000 air heaters are all fitted with
automatic spark ignition systems. When adequate
airflow for combustion is proven by an air proving
control and a pre-purge period has elapsed, the
integral igniter and multi-functional gas control
operate. The ignition spark ignites the gas creating
the burner flame, which is detected by a flame rod
sensor. If a burner flame is not detected, the
ignition controller proceeds to lockout and requires
manually resetting. Lockout is indicated by the red
warning light on the air heater.
NOTE: If the first reset is not successful, wait 15
seconds before attempting reset
.
5.3.1 To turn the air heater "ON"
The following checks should be carried out before
attempting to light the air heater.
*Ensure that the gas supply to the air heater is
turned ON;
*Ensure that the electrical supply to the air heater
is switched ON;
*If fitted ensure that a time switch is set to an ON
period
*Set room thermostat to call for heat. e.g. to above
room ambient temperature (or follow the
instructions of the air handler). The burner will
now light. The burners can be seen through the
viewing port.
*Adjust the room thermostat to the required
operating comfort temperature. The air heater will
now start automatically when the room
thermostat calls for heat.
NOTE: If the air heater will not start on initial start-
up, the ignition controller may be in lockout position
and require resetting. This may occur especially if
the appliance has been on stand-by for a prolonged
period.
