Stanley Alpha 120K, Commissioning Instructions

Page: 12 / 24

Site requirements
12
The cooker combined with a 3-channel programmer will
operate the heating, hot water and cooking individually.
The control wiring must be as the following diagrams.
Alteration to this could cause the appliance to overheat
and fail.
The cooker is fitted with high limit and pump overrun
control thermostat which protect the appliance in normal
operation. Failure to wire the appliance correctly could
result in these protective controls/devices not operating or
operating incorrectly.
Connection of the wiring is made in the bottom left hand
side of the cooker.
Connection is made with a 11-way terminal block.
The appliance requires a 3 amp supply via switched fused
spur or switched isolator.
There is then a protected supply out to the programmer
and any other devices requiring power. Switched lives are
then returned for the burners, via the room and cylinder
stats.
Wiring external to the appliance must be installed in
accordance with current National Wiring Regulations and
any local regulations which apply. The appliance is
supplied for 230V - 50 Hz 210W a fuse rating of 3 amps.
The method of connection to the mains supply should
facilitate complete isolation of the appliance, by the use of
a fused double pole switch having a contact separation of
at least 3mm serving only the appliance.
The point of connection to the mains should be readily
accessible and adjacent to the appliance. The installation
should be protected by a 30mA Residual Current Circuit
Breaker (RCCB).
The minimum requirement for the power cable is that it
should be a 3 core PVC sheathed flexible cord (85°C min)
at least 0.75mm2 (24 x 0.2mm) to the relevant standard
WARNING: THIS APPLIANCE MUST BE EARTHED.
In the event of an electrical fault after installation of the
appliance, preliminary electrical system checks must be
carried out i.e. earth continuity, polarity and resistance to
earth.
For wiring instructions, see wiring diagrams.
The circulating pump must be connected to PL and PN on
the terminal block (See Fig. 6) and the cables clamped
and passed through the grommet in the left hand side
panel.
NOTE: The 3 amp fuse rating takes into account any
AUXILIARY components used. In most central heating
systems i.e. circulation pump, zone valves. Stanley
recommend that only CE marked equipment is used in
conjunction with this appliance.
CONTROL WIRING
CONNECTION
ELECTRICAL SUPPLY