User Manual HP M3 r3 DN (1) rev2019/03
Page 14
Important safety information
All water heaters have the ability to produce hot water very quickly. To reduce the risk of
scald injury it is recommended that a temperature control valve be fitted to the hot water
supply pipe work. This valve should be checked every 6 months to ensure its operation and
settings remain correct.
Check that the pressure & temperature relief valve drain pipe is not located where it can
cause damage if hot water is discharged.
This water heater is not intended for use by young children, infirm persons, or persons
lacking relevant skill or experience, without suitable supervision.
Children should be supervised to ensure they do not play with hot water taps or the
water heater.
If the hot water system is not used for two weeks or more, a quantity of hydrogen gas, which
is highly flammable, may accumulate in the water heater. To dissipate this g
as safely, it is
recommended that a hot tap be turned on for several minutes at a sink, basin or bath but not
a dishwasher, clothes washer, or other appliance. During this procedure there must be no
smoking, open flame or any other electrical appliance ope
rating nearby. If hydrogen is
discharged through the tap, it will probably make an unusual noise as with air escaping. Do
not place hands or any part of your body beneath the tap during this procedure.
Piping Installation Diagram