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11.0 USER INSTRUCTIONS
11.1 The B3M and C3M vented water heaters store water at the tem-
perature set on the adjustable thermostat. This can be set to give
temperatures in the range of 10 to 75
freezing when the heater is not in use for long periods during the
winter months, do not switch off the electrical supply and set the
thermostat to its minimum position. N.B. This will not protect
other system pipework.
11.2 The thermostat can also be locked in either the mid range or a
"hot" position. To lock the thermostat position the instructions
given under Sections 7.8 and 7.9 should be followed. We recom-
mend that this procedure is carried out by a qualified electrician.
11.3 The indicator light will be illuminated when the unit is heating.
11.4 To ensure the heater continues to operate at its optimum perform-
ance it should be periodically maintained in accordance with the
instructions given under the Section headed MAINTENANCE.
11.5 IMPORTANT NOTES TO USER
OPEN OUTLET INSTALLATIONS
When installed as an Open Outlet water heater the outlet acts
as a vent and must not be connected to any form of tap or
fitting not recommended by Heatrae Sadia. The outlet of the
tap must not be restricted or blocked in any way.
In an Open Outlet installation it is normal for the hot outlet to
drip during heating. This is due to the expansion of water as it
is heated within the unit, it does not indicate a fault with the
unit. DO NOT attempt to stop this dripping by over-tightening
the inlet tap as damage to the sealing washers or the operating
mechanism will occur.
o
C. To avoid any risk of
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