Operating instructions

4
What the installer will need
A means for disconnecting the fixed wiring in all poles in accordance with the wiring rules
(ie. 13A fused double pole isolating switch).
Suitable length of 1.0mm² 3-Core multi-strand PVC insulated mains cable that complies with
BS.6500.
Suitable lengths of Ø15mm copper pipe.
Where to locate the SB²
We recommend that the unit is installed on a suitable wall, at shoulder height and over a sink,
with accessible area to maintain unit if and when required.
Adjacent to the means for disconnecting the fixed wiring in all poles in accordance with the wiring
rules (ie: 13A fused double pole isolating switch).
Available mains cold water supply and drainage facility.
DO NOT install the SB² within reach of a person using a bath or shower.
This unit must not be installed in an area cleaned by a water jet.
DO NOT obstruct the ventilation channel in the backplate.
Installing the water supply and steam vent pipes
The unit must be connected to cold, mains fed, drinking water only.
Pressure range between 0.069 MPa (0.7 bar / 10 psi) and 1.0 MPa (10.0 bar / 140 psi).
DO NOT connect to a storage tank
Isolate the water supply
Lay in the Ø15mm water supply pipe to the location of the inlet connection (Fig.1).
Check that the water supply position gives enough space under the unit for it to be used properly.
Flush through the water supply before making the final connection so that any debris is removed.
Note: The inlet elbow contains a flow regulator: THIS MUST BE USED IN INSTALLATION
Lay in the Ø15mm drainage pipe to the location of the steam vent connection (Fig.1).
Connection is made using the push-fit adaptor provided.
The steam vent connection must be taken directly to the sink below, if there is one, or via a
tundish to a suitable drain.
If a sink is used it must be able to withstand boiling water and have an overflow
connection.
Note: The steam vent outlet also acts as an overflow.