27
STRATA2
The Strata 2-120 should be commissioned by a competent engineer. Before commissioning the
appliance, the whole gas installation including the meter MUST be purged and tested for gas soundness in
accordance with BS6891:1988.
CAUTION:
Open all doors and windows, extinguish naked lights and DO NOT SMOKE whilst purging
the gas line.
The entire system must be thoroughly cleansed and flushed to remove debris, flux residues etc before
opening the boiler isolation valves and flooding the boiler. Particular care must be taken where the
appliance is being retro-fitted into and old/existing system, as system silt or magenite can be very damaging
to the new boiler.
Following cleansing and flushing the system must be dosed with a good quality
water treatment to prevent corrosion and the formation of scale. Failure to observe
these requirements will render the guarantee on the product void.
Cleansing, flushing and water treatment must be carried out in accordance with
the requirements of BS7593:1992.
The return pipework must include some method of filtering or straining. The filter or strainer must be
fitted with isolation valves to allow easy cleaning with the minimum amount of water loss and water
replenishment.
A low water pressure switch must be included within the system design and interlocked to the boiler
to shut the boiler down in the event of the water pressure falling below 0.5 bar.
Note: The Strata 2 boiler has heat exchangers fabricated from 316L stainless steel.
It is most important that the compatibility of any flux is checked with the flux
supplier before use, and that any flux manufacturers recommendations are strictly
followed with regards to use in conjunction with stainless steel.
6.1 Filling the Boiler
The Strata 2-120 and the central heating installation must be filled by a competent person using one of
the approved methods in BS 6644:1991 and using the filling/draining cock in the installation.
The unit has a manometer, which indicates the filling pressure. Fill the installation and vent the boiler.
Continue to fill the installation until the correct central heating water pressure has been reached.
Minimum static head – 5m.
6.0 commissioning
and testing
5.9.1 Condensate Receptacle and Pump –
Model No. KHP1
The KHP1 condensate pump is designed to collect and pump away condensate water produced by
condensing boilers and is particularly suitable for use with the Strata 2.
The KHP1 may be installed directly inside the base area of the Strata 2 making a concealed installation.
The receptacle includes a permanently wet sump area where pH adjustment granules may be dosed to
neutralise the pH of the condensate water.
technical data
Pump Transfer Height
5m
Transfer Volume/cycle
2 litres (approx)
Transfer Time/cycle
17 seconds (approx)
Power Supply
230V 50Hz
Pump
12V dc
Pump Outlet
10mm OD Male Spigot
Capacity pH Granules
7kg
Dimensions
465W x 380D x 120H
Supply Cable Length
1.8m
10mm Discharge Hose Length
5m
Condense Inlet
open aperture in unit top