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1. Appropriation and characteristic
Flow water heaters type PERFECT 350, 400, 450, 500 ELECTRONIC are designed for delivery of
warm water to sanitary equipment such as sinks, wash-bowls used at bath-rooms, work-shops
lavatories, etc. Heaters are equipped with electronic control systems which eliminate the most
deceptive parts as membranes, electric contacts used in traditional devices of such kind. This
system substantially prolong heaters work life and reliability. Additionally, application of electronic
air-plugging sensor increased heaters resistance against serious damages caused by lack of
water in the system, particularly during first starting without prior air blowing-out from heating
element. Heater can be connected to cold water pipe only.
Caution!
The heater must never be mounted, disconnected or inclined while being
engaged to electric power system.
The device can only work in position showed on drawing below.
Trying to start the device in position other than proper one will result in
damaging a heating element and deprivation of guarantee.
drawing No 1
2. Safety regulations
Connection to the electric power installation and measurement of earthing effectiveness should
be made by qualified electrician;
Heater must be earthed or neutralized;
Heater must be permanently connected to the power line;
Power installation must be equipped with differential switch;
In rooms where heater is installed air temperature never should be below 0
O
C
State of electrical installation should be periodically checked (voltage drop) and in particular
electrical connection;
Electrical power must be switched off before each disconnection from water system;
Heater must work only in position presented on drawing No 1;
Heater should be always in perfect technical condition and faultlessly installed;
In case the heater works incorrectly power must be switched off and water must be turned off;
Housing never can be taken out when power is on;
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