Royal WH Series Manual page 23

Water heater should be connected to mains socket with
grounding contact. This device uses mains cable wit h
grounding wire and plug with grounding contact. It's
prohibited to use adapters and extension cables.
Make sure that the circuit breaker in the powe r supply panel corresponds to the power input of the water heater.
It's prohibited in any circumstances to disassemble, repair any parts of
water heater or change the design. In case of malfunction, please contact
service organization.
In case of malfunctions in operation of the water heater, such as electric
crackling or smoking, and in case of shirt circuit of current conducting parts
to water heater enclosure (prickly sensation when touching metal parts)
immediately disconnect the water heater from the mains and call representatives
of service.
Before connecting to the electric mains, visually inspect the
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power co rd and plug for absence of damages. It's PROHIBITED
to bend power cord, put heavy things on the power cord and cut
and extend the cord on your own
If the power cord is damaged, it must be replaced by the manufacturer, his
service agent or other qu alified person. Do not use the device withdamaged
power cord.
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For ensuring fire safety, it's PROHIBITED to connect the water heater to
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electric mains having out-of-order overcurrent protection
Periodically inspect the power cord and plug of water heater for absence of
moisture .
Periodically fully clean the outer surface of the water heater and
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electric connections, etc. from dust and foreign matters.
After service maintenance and repair, the specialist of service
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organization should connect and demonstrate operation of the product.
During installation and operation of the water heater, it's PROHIBITED to:
- Modify the water heater construction.
- Use the water heater for purposes other than that intended.
- Tilt, move and turn water heater during operation.
- Cover or plug the drain hole of the safety valve.
- Connect the water heater to power source when there is no water in it.
- Remove the plastic cover when the appliance Is connected to power source.
- Switch the water heater on if the earthing is faulty or not arranged.
- Use central heating, cold or hot water line as earthing lines.
- Use T-connectors or extenders and adapters to connect the appliance to power source.
- Install the appliance in non-ventilated rooms with high humidity level.
- Operate the water heater at ambient temperatures below zero.
- Expose the appliance to direct sunlight.
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