STRATA1
9
Note The Strata 1 boiler must only be installed on sealed and pressurised systems. The maximum
working pressure of the boiler = 3 bar. A safety valve set 3.0 bar is supplied with the boiler and must be
installed onto the flow pipe adjacent to the boiler. It is recommended that the final working pressure (hot)
of the system does not exceed 2.3 bar.
The boiler is equipped with 2 sets of 1
1
/
4
"
BSP Male flow & return connections which are located top
rear L/h side & bottom rear L/h side. See figs 3&4.
The installer may choose to use both top connections or both bottom connections or one of each (e.g.
flow-top, return-bottom). The appliance is supplied complete with 2Nr 1
1
/
4
"
x
1
/
2
"
BSP reducing sockets
(see fig 3. item A) which may be used either at the top of the appliance (when flow and return connections
are made to the lower boiler connections) to install air vents or be used at the bottom flow and return
connections (when system connecting are to the top of the appliance) to install drain cocks.
The appliance is supplied with 2Nr 1
1
/
4
"
x 1
1
/
4
"
x
1
/
2
"
BSP Tees (see fig 4. item B) which may be used
to connect the supplied safety valve into the flow pipe adjacent to the appliance and either a system filling
point/expansion vessel or a draincock. The flow and return pipework should include isolation values and a
method of disconnection local to the boiler.
9.0 system flow
& return connections
10.0 condense
waste connection
Return
A
B
Fig 3.
Fig 4.
Flow
Flow
Return
The condense waste connection is located at the underside rear of the appliance see fig 5. The
condense syphon cleaning point is factory fitted with a heavy grade black plastic cap which MUST NOT BE
REMOVED (see fig 5) apart from routine maintenance cleaning operations and must be in place whenever
the appliance is in operation. WARNING operating the appliance with the cap removed from the syphon
cleaning point will cause products of combustion to be discharged from the cleaning point.
The condense waste connection is a
3
/
4
"
BSP Male threaded stub fabricated from
plastic. The installer must connect to this stub, a condense waste pipe fabricated
from plastic tube and fittings (
3
/
4
",
22mm, overflow pipe is considered suitable).
Copper Tube is not acceptable. The condense waste pipe must fall continuously
from the appliance to suitable nearby drain.
