10
12.0 USER INSTRUCTIONS
12.1
The UTC 15 vented heater stores water at the temperature set on the adjustable
thermostat. This can be set to give temperatures in the range of 10 to 70
o
C. To
avoid any risk of 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.
12.2
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 5.9 and
5.10 should be followed. We recommend that this procedure is carried out by a
qualified electrician.
12.3
The indicator light will be illuminated when the unit is heating.
12.4
To ensure the heater continues to operate at its optimum performance it should
be periodically maintained in accordance with the instructions given under the
Section headed MAINTENANCE.
12.5 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 tap 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 tap as damage to the sealing washers or
the operating mechanism will occur.
