Technical data

9
If any part of the condense waste pipe is to be run external to the building or is at risk of freezing, then
the pipe must be suitably insulated to protect from freezing.
If a suitable drain for accepting the condense waste is not available nearby to, and below the boiler, (e.g.
boiler installed in a basement below ground level location), then a suitable condense sump receptacle with
a discharge pump should be installed below the boiler to remove the condense to a remote drain.
When making the condense waste pipe connection to the boiler, do not use adhesives, it is
recommended to lightly apply a suitable jointing tape (PTFE or similar) and use only light pressure to
connect fittings to the appliance to avoid damage to the condense waste outlet assembly.
It is recommended that the condense waste pipework should include a method of disconnection and
cleaning points.
10.0 condense waste connection (contd)
STRATA1
11.0 flue/combustion
air connection - general
The flue connection and combustion air inlet to the appliance are located on the top of the appliance
see fig 6. These connections are arranged concentrically with the 80mm flue gas connection centrally within
the 125mm air inlet connection.
There are two options for flueing the Strata 1 boiler.
i) Conventionally, using flue gas tube only and air for combustion from the room or compartment
in which the appliance is installed. If using a conventional flue arrangement then the room or compartment
must be ventilated in accordance with the requirements of BS 6644 or BS5440 as appropriate. For guidance
on ventilation see section 16.
ii) Room sealed using concentric 80/125 components where air for combustion is taken from outside
of the building. When using a room sealed flue, whereas air for combustion is provided from outside of
the building directly to the appliance, ventilation to a compartment may still be required - See section 16
for general space cooling.
Multiple Boilers
For detail and advice on common flues serving multiple boilers, contact MHS Boilers Ltd.
Important Note
Where the Strata 1 is to be installed in an application where the combustion air is likely to be
contaminated with oxidising agents, such as swimming pool areas, special industrial processes etc, then the
appliance must be room sealed.
Condense
Waste
Connection
Air Inlet
Flue gas
Connection
Syphon Cleaning Point
MUST remain capped
Fig 5.
Fig 6.