8
the flexible hose)!
After connecting the appliance and before turning on the electric supply, open the tap until steady jet of water
starts running from the shower head!
3.4. IN Line models – fig. 5
The incoming and the leading-out pipes of the appliance have R1/2” fastening thread.The inlet and the outlet
are indicated by arrows on the back lid of the appliance (or on the tubes themselves). The arrows show the
direction of the water flow. These models are designed as a closed type(pressurized). The cock for running,
control and stopping of the water flow is installed after the appliance.
It is not allowed to install any back valves and closed isolating fittings in the water system before the appliance.
The appliance can be connected to more than one hot water point of use.
The water heater cannot supply enough hot water in cases of simultaneous consumption from two points ofuse!
After connecting the appliance and before switching the power on, open the hot water tap until a steady
water jet starts running!
4. ELECTRIC INSTALLATION
4.1. Connection to the electricity grid
The appliance has to be earthed! Do not switch on the power of the appliance before making sure that it is
full of water!
4.2. Water heater fitted with supply cord and a plug
· The plug has to be plugged in to a properly connected and earthed socket.
· The socket has to be connected to a separate electrical circuit supplied with a safety fuse. The section of the
supply conductors and the nominal power of the safety fuse have to conform with the data given in Table 1
· The verification of the fulfillment of the abovementioned requirements shall be carried out by a qualified
technician (see item IV)
· The appliance shall be placed in a position allowing access to the socket of the supply cord.
4.3. Water heaters fitted with a supply cord without a plug
The appliance has to be connected to a separate electricity circuit of the stationary electrical wiring. The
connecting has to be constant- with no plug contacts. The circuit has to be supplied with a safety fuse and
with inbuilt device to ensure disconnection of all pole pieces in the conditions of over- voltage from category
III (a device with a distance between the studs of at least 3 мм). The sections of its conductors for the various
powers are listed in Table 1
Fig.5
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