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STARTING THE BOILER
Set-up conditions
Hydraulic and electric connections made
•
External power supply isolated
•
Boiler filled and pressurised
•
Procedure
Before starting the boiler, make sure that the
air is bled from the heating circuit using the
automatic air vent located at the top of the
boiler. Note that the black dust cap on the
air vent should be left loose to allow the auto
vent to function.
1
2
1.
Place all the switches (1 & 2) of the control panel to OFF.
2.
Set the internal MCB to ON (See ML book).
3.
Install the boiler front panel, refer to
stallation of the Access Panels" on page 14
4.
Provide power supply to boiler through the external elec-
trical box.
5.
Turn the boiler on using the ON/OFF switch (1).
6.
After a few minutes of operation of the circulating pump,
check the circuit pressure on the boiler manometer (3).
7.
If necessary, place the ON/OFF switch (1) to OFF, bleed
the air from the circuit and top-up the circuit with water to
reach the minimum pressure of 1 bar, then turn the boiler
ON again.
8.
If necessary, perform any additional set-up of the pump, ac-
cording to the type of system. Refer to
page 16
.
9.
Switch on the power levels switch stage 1, the first stage
contactors will energise.
10.
Switch on the power levels switch stage 2, after a short
delay the second stage contactors will energise.
EN
Commissioning
11.
12.
13.
Follow-on Task(s)
1.
3
4
"Removal and In-
.
"Pump Set-up" on
A1007841-664Y7800 • A
The boiler temperature will now rise as indicated by the
combined temperature and pressure gauge (3).
The temperature will continue to rise until the control thermo-
stat temperature setting is reached then the boiler will switch
off.
Set timeclock (if fitted) and/or external controls to desired
boiler operating on/off times.
Remove the red sticker from the front face of the boiler.
After several days of operation, re-check all
electrical and hydraulic connections for tightness,
as well as the system operating pressure. Correct
and adjust as necessary.
23
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