Heatrae Sadia SUPREME 220SS Fitting Instructions And User Manual page 10

7.0 COMMISSIONING
7.1 The electronic control system of the Supreme has a self
commissioning and calibration function. Once the heater is
installed and all services have been connected the unit should
require no further adjustment before use.
7.2 Check that all electrical, water and vent pipe connections have
been made and are secure.
7.3 Replace the bottom cover and secure with the fixing screws. Turn
on water and electrical supply.
7.4 The READY indicator will flash to indicate the unit is in its "self-
commissioning" mode. The water in the unit will not be hot
enough to use at this stage.
7.5 The READY indicator will continue to flash until the unit has
reached boiling and has "self-calibrated". At this point the READY
indicator will remain illuminated. If for any reason the calibration
procedure is interrupted it will restart after a short delay but may
result in the calibrated temperature being too low. If this occurs
switch the electrical supply OFF for several seconds and then
switch ON. The calibration sequence will reset. Wait for the
READY indicator to remain illuminated.
7.6 The unit is now ready to use, however, it is recommended that the
first few fills be drawn off and discarded to ensure the freshness
of the water.
7.7 The tap sealing washer pressure has been already set. If the tap
drips after commissioning adjust the spring tension so that the
handle is just loose. With the handle in the vertical (off position)
remove locking screw, spring washer and security tab; line up the
hole in the plastic tap cap with the hole beneath it (by gently
turning the handle). Insert a short, blunt, M4 screw. Increase
sealing pressure (and loosen handle fit) by turning the handle
clockwise. Remove the 'short, blunt, M4 screw'; position the
handle with the smoothly curved side facing you (pull on with
spring return) and replace tab, washer and screw. Note:
excessive adjustment will dismantle the tap, if heated this
would result in the uncontrollable release of boiling water.
7.8 Check for leaks.
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