Initial Lighting - IDEAL HE15 Installation And Servicing

40 INITIAL LIGHTING

1. Check that the system has been filled and that the
boiler is not air locked.
Note. It is important the burner is not operated before
the system is fully vented of air. If it is necessary to
operate the system pump to assist venting of the air this
must be done with the gas service cock turned off.
2. Check that all drain cocks are closed and any valves in
the flow and return are open.
3. Check the electrical supply is off.
4. Check the gas service cock is open.
5. Check that the boiler on/off switch (A) is OFF
6. Slacken the screw in the inlet pressure test point (G)
and connect a gas pressure gauge via a flexible tube.
7. Switch the electricity supply ON and check all external
controls are calling for heat.
8. Set the boiler thermostat knob (B) to maximum and
switch the boiler on/off switch (A) to ON. The boiler
control should now go through its ignition sequence
until the burner is established.
9. If the boiler does not light after 3 attempts the fault
codes L' 'F' will be displayed. Press the reset button
(C); the boiler will then repeat its ignition sequence.
When the burner is established the WHITE burner ON
neon (D) will be permanently illuminated.
LEGEND
A On/Off switch
B CH Thermostat knob
C Reset button
D Burner On Neon
E Display
F Injector pressure test point
G Inlet pressure test point
H Gas service cock
Flue
sampling
point
OH
thermostat
Flow
thermistor
mexico HE15, HE18 & HE24
30
INSTALLATION
10. Ensure that with the boiler operating the dynamic gas
N.B.
mexico HE range is able to deliver their full output at inlet
pressures down to 14mb. However if dynamic pressures below
20mb are experienced ensure this is adequate for ALL other
gas appliances in the property.
11. Switch OFF the boiler on/off switch.
12. Remove the pressure gauge and tube. Tighten the sealing
13. Refit the boiler front panel.
THE DISPLAY
The user control has one neon and one display to inform the
user about the status: the display will show the status of the
boiler and the neon will show the status of the flame. If no flame
is detected the neon is blinking. When the flame is detected the
neon will be lit permanently.
Below is a list with display function in normal operation.
A E C B
D
GAS VALVE
H
pressure is able to obtain maximum output.
The principle of the 1:1 gas valve ensures that the
IMPORTANT.
The gas input to the burner is regulated by the gas valve
according to the air flow produced by the fan. It is NOT
user-adjustable. Any interference to sealed settings on the
gas valve will adversely affect operation and render our
warranty void.
screw in pressure test point. Ensure a gas tight seal is made.
Standby. No demand for heat present.
Boiler is active for central heating or domestic hot water.
Boiler is in lockout for a specific error. The display will be
blinking, alternating with a number or letter to show which
error is detected.
Boiler is in lockout for a specific error. The display will be
blinking, alternating with a number or letter to show which
error is detected.
Flue
sampling
point
Spark
generator
Auto Air
vent
Flow thermistor
OH thermostat
Dry fire
thermistor
G F
mxhe7619
mexico HE -
A E C B
D
H
mexico HE30 & HE36
Installation & Servicing