Special Safeguards - Polaris Mercury 5.3OD Manual Instruction

• Attention: Expressly prohibited to use portable extension pieces, tee-joints and others non-
standard electric devices for water heater connection.
• The heater is to be connected to a separate three-wire cable. The unit is to be connected to a single
wire power supply using a double pole automatic switch rated for 25 А.
• A protective cutout device is to be installed to the power-supply circuit. Please contact an
authorized specialist.
• The wires are to be connected according to the colors. It is necessary to assure the correct and firm
connection of yellow grounding wire. Heat-resistant cables should be used.
• The grounding cable is to be connected directly to the ground of the customer's grounding source
using a special separate cable.
• Only supplied accessories can be used at outlet of heater.
• Before the operating please make sure that the unit is full of water and there is no air inside.

Special safeguards

• Only qualified specialists should install or repair the appliance. You should not repair the
appliance by yourself.
• The grounding should be made in appropriate way. It is forbidden to use water, gas supplying
pipes or sewerage system pipes to ground the socket outlet.
It forbidden:
• to leave the operating unit without supervision;
• to use a damaged unit (control panel damage, power cord or power supply damage);
• to remove the front cover, while the unit is switched in the electric circuit;
• to set a stop valve in the hot water outlet;
• to make the adjustment of any devices, except the water supply with valve head;
• to switch on the appliance if there is a possibility of the freezing of water in the water heater;
• Close supervision is necessary when any appliance is used near children.
• This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the
appliance.
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