Technical data

44
STRATA1
19.1 Pre-commissioning
checks
a) Ensure system has been thoroughly cleansed and flushed, any strainers have been cleaned and
that the appropriate water treatment has been added to the system to prevent corrosion,
scale formation etc.
b) Ensure the system and boiler has been properly and fully flooded and vented of air and the cold
fill pressure at the boiler is at a minimum 0.5 bar.
c) Check that the pumps within the boiler are free to rotate by removing the vent screw in the end
of both pump motors and checking that the impeller shafts rotate freely when turned
with an appropriate sized screwdriver. Replace vent screws.
d) Ensure Gas supply has been purged and there is the availability of working inlet pressure of
nominal 20 mbar (Nat gas) or 37 mbar (LPG).
e) Check that the flue installation has been properly made.
f) Check that a condense waste pipe
(in plastic - copper tube is not
acceptable) has been connected to
the boiler and that the syphon
cleaning point cap is in place.
g) Where the appliance is taking air
for combustion from the room in
which it is installed - ensure an
adequate provision for ventilation has been made.
h) Ensure that there is an adequate heat load available.
i) Ensure that the electrical connections have been made correctly.
j) Ensure that the appliance has been correctly configured via the Dip switches located on the
bottom right hand side of the control panel. See Dip switch setting table in 19.2.
Dip Switches
19.3 First
Firing
Notes
The Strata 1 boiler has 2Nr Heat Exchange and Burner Assemblies. The Lower Assembly is referred to as
No1 and the upper as No2. There are two gas valves - one for each burner; the left hand gas valve serves
the lower assembly (No1), and the right hand gas valve serves the upper assembly (No2).
a) Ensure gas & electricity supplies are turned on to the appliance.
b) Switch on the boiler at the on/off switch. (See figure 20) The appliance will purge both
combustion chambers with air from the burner fans and then will pulse the pumps on/off
(venting) to push away any air that may be remaining in the heat exchangers.