Saunier Duval THELIA 23, Инструкция по установке и эксплуатации

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27
●
Turn the knob (
dia-
gram. 56
) to switch the
boiler ON and OFF: cloc-
kwise to increase the
temperature, anti-cloc-
kwise to decrease. The
burner will automatically
turn ON at full rating, at
reduced rating, or will
turn OFF.
COMMISSIONING
Reg 012
Diagram. 56
●
Allow the temperature to rise to the maximum
value, with all radiator valves open. The tempera-
ture rise will cause release of the gases contained
in the water of the central heating system :
- Gases driven toward the boiler will be automati-
cally exhausted through the automatic air vent.
- The gases trapped at the highest point of the
system must be released by bleeding the radia-
tors.
On reaching maximum temperature, the boiler
should be turned off and the system drained off
as rapidly as possible whilst still hot.
●
Refill the system to a pressure of 1 bar and vent
as before.
●
Restart the boiler and operate until maximum
temperature is reached. Shut down the boiler and
vent the heating system. If necessary, top up the
heating system and make sure that a pressure of
1 bar is indicated on the pressure gauge when
the system is COLD.
Starting the boiler
Before starting the boiler check that:
- The gas meter tap is open. If using butane or
propane, check that valve on storage cylinder
or tank is open.
- The boiler gas service cock is open.
- The boiler is connected to the electrical supply
and switched on.
- The selector lever is in the left hand position.
Gas pressures
The main burner pressure should be checked dur-
ing commissioning to make sure the correct in-
put is obtained. Proceed as follows :
●
Shut down boiler.
●
Remove screw from test point on main burner,
below sealed chamber of boiler ( see diag. 57 ).
●
Connect a suitable pressure gauge.
●
Set selector lever to right hand, heating and hot
water position.
●
Start boiler as described in ‘Instructions for Use’
●
Set control thermostat to maximum, fully
clockwise, and check that any external controls
are calling for heat.
●
Check that the reading on the gauge matches
that given in ‘Technical Data’ for the type of gas
being used.
●
Move the selector lever to the left hand position,
remove the pressure gauge, replace test point
screw and check for gas soundness.
●
If measured burner pressure differs greatly from
the given figure, check the gas inlet pressure as
follows:
●
Shut down boiler.
●
Remove screw from inlet test point at rear of
multi-functional control.
●
Connect a suitable pressure gauge.
●
Start boiler as described in ‘Instructions for Use’
●
Check that the inlet pressure reading on the
gauge matches that given in ‘Technical Data’ for
the type of gas being used.
●
Shut down boiler.
●
Remove the pressure gauge, replace test point
screw and check for gas soundness.
●
If the gas pressure is incorrect, refer to the Fault
Finding section in servicing instructions.
●
If inlet pressure is below that given, the gas sup-
ply pipework/meter must be checked and any
fault corrected.
●
In the case of an LPG installation, check the stor-
age tank or cylinder, regulator and pipework.
Des 044
Diagram. 57