Introduction
SiBE611027_A
vii
Caution
Installation of a leakage breaker is necessary to prevent electrical shocks.
Do not install the unit in a place where there is a possibility of combustible gas
leaks.
If the combustible gas leaks and remains around the unit, it may cause a fire.
Check to see if the parts and wires are mounted and connected properly, and
if the connections at the soldered or crimped terminals are secure.
Improper installation and connections may cause excessive heat generation,
fire or an electrical shock.
If the installation platform or frame has corroded, replace it.
Corroded installation platform or frame may cause the unit to fall, resulting in
injury.
Check the grounding, and repair it if the unit is not properly grounded.
Improper grounding may cause an electrical shock.
Be sure to measure the insulation resistance after the repair, and make sure
that the resistance is 1 M
Ω
or higher.
Faulty insulation may cause an electrical shock.
Be sure to check that there is no water leakage of piping between indoor and
outdoor after the repair.
Leaked water can fall in drops and wet the furniture and floor.
Never use water that does not satisfy EU drinking water quality standards. Do
not use well water, either.
Otherwise, the tank may be corroded. (Domestic hot water quality must be
according to EN directive 98/83/EC.)
The temperature of the water that flows through the unit must always be
maintained between 6°C and 60°C.
When the unit is not going to be used for a long period, it is best not to leave
water in the unit’s water pipes. Either fill the pipes with an anti-freeze solution
or discharge the water. Leaving water in the pipes can cause water leakage.
