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CONNECTIONS - ELECTRICAL
33
MANUAL CONTROLS
A manual switch can be installed in the power supply circuit to the solar storage
tank. The on/off booster switch can be installed with a single element model
connected to either a continuous or an Off-Peak electricity supply, or with a twin
element model to control the bottom heating unit connected to an Off-Peak
electricity supply. The “One Shot Control” switch should only be installed with a
single element model connected to a continuous electricity supply. Discuss the
power supply and manual switching arrangements with the householder.
WIRING DIAGRAM FOR
TWIN ELEMENT ELECTRIC
WATER HEATERS
NON-SIMULTANEOUS
OPERATION
The active from the continuous
electricity supply must be connected
to the top heating unit circuit and the
active from the Off-Peak electricity
supply must be connected to the
bottom heating unit circuit for the
water heater to operate.
Electrical installation of a twin
element model solar storage tank
with a manual boosting switch
controlling the bottom heating unit
Electrical installation of a single
element model solar storage tank
with a manual boosting switch