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Concord CXS 40/H-120/H -
User's Guide
CONCORD CXS 100/H - 120/H models
TO LIGHT THE BOILER
1.
Check that the boiler thermostat knob (1) on the control box
(2) is OFF.
2.
Ensure that the mains gas inlet cock (3) is open (groove in
the square head in line with the gas pipe).
3.
Press in and release the overheat thermostat button (4).
4.
Switch on electrical supply to the boiler.
5.
Ensure that all system controls (time switch, system
controls etc.) are calling for heat.
6.
Turn the boiler thermostat knob (1) to position 6.
7.
The boiler will light at Low rate and the Boiler On light (5) will
be illuminated. If it does not light the Lockout light (6) will be
illuminated. Press in and release the Lockout button (7).
The controls will reset and attempt to relight.
8.
The burner will remain at Low rate for about 1 minute before
going to High rate.
9.
Check all connections for gas soundness, using leak
detection fluid.
10.
Set the boiler thermostt knob and the system controls to the
required settings.
11.
Turn off the electrical supply to the boiler.
CONTROL PANEL LIGHTS
1.
The Boiler On light (5) is illuminated when the boiler is firing.
2.
If the Overheat light (8) is lit, pull off the casing lower front
panel and press in the overheat reset button (4). Replace the
lower front panel and follow the boiler lighting instructions
above. If the overheat condition persists consult a CORGI
registered installer.
TO SHUT DOWN THE BOILER
For short periods
Turn the boiler off at the time clock or system controls. Wait 6
min. and then turn the boiler control thermostat knob (1) toOFF.
Note the frost warning below.
For long periods
Turn the boiler off at the time clock or system controls. Wait for
6 min. and then turn the boiler control thermostat knob (1) to
OFF. Note the frost warning below.
TO RELIGHT THE BOILER
After short periods
Switch on the time switch or system controls and turn boiler
thermostat knob (1) to the required setting. The boiler will light
providing the external controls are calling for heat.
After long periods
Follow the lighting instructions above. Refill the system if it has
been drained.
FROST WARNING
If frost is likely, leave the boiler thermostat at position 6 and
do not
turn off the gas cock. This will enable the built-in frost
thermostat to protect the boiler. Note that this may not protect
remote parts of the system, in which case a separate frost
thermostat should be fitted or the system drained and the
boiler shut down, as for Long Periods.
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LEGEND
1.
Thermostat knob
2.
Control box
3.
Mains inlet gas cock
4.
Overheat thermostat
reset button
5.
Boiler on light
6.
Lockout light
7.
Lockout reset button
8.
Overheat light
9.
LH Gas control valve
10.
RH Gas control valve
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3.
If the Lockout light (6) is lit press in the Lockout reset button
(7). If the lockout condition persists consult a CORGI
registered installer.
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Con 5240
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Summary of Contents for Concord CXS 40H
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