Gorenje Tiki TG 100 N, Instructions For Use Manual

Page: 8 / 68

8
A B C D E F G
TGU 50 N 561 365 185 145 461 454 130
TGU 80 N 766 565 190 345 461 454 180
TGU 100 N 926 715 200 495 461 454 260
TGU 120 N 1081 865 205 645 461 454 260
TGU 150 N 1296 1065 220 845 461 454 260
TGU 200 N 1505 1050 435 800 507 500 260
Connection and installation dimensions of the water heater (mm)
CONNECTION TO THE WATER SUPPLY
The water heater connections for the in-flowing and out-flowing water are colour-coded.
The connection for the supply of cold water is coloured blue, while the hot water outlet
is coloured red.
The water heater may be connected to the water supply in two ways. The closed-
circuit pressure system enables several points of use, while the open-circuit gravity
system enables a single point of use only. The mixer taps must also be purchased in
accordance with the selected installation mode.
The open-circuit gravity system requires the installation of a non-return valve in order to
prevent the water from draining out of the tank in the event of the water supply running
dry or being shut down. This installation mode requires the use of an instantaneous
mixer tap. As the heating of water expands its volume, this causes the tap to drip. The
dripping cannot be stopped by tightening it further; on the contrary, the tightening can
only damage the tap.
The closed-circuit pressure system requires the use of pressure mixer taps. For safety
reasons the supply pipe must be fitted with a return safety valve or alternatively, a
valve of the safety class that prevents the pressure in the tank from exceeding the
nominal pressure by more than 0.1 MPa. The outlet opening on the relief valve must be
equipped with an outlet for atmospheric pressure.
The heating of water in the heater causes the pressure in the tank to increase to the
level set by the safety valve. As the water cannot return to the water supply system, this
can result in the dripping from the outlet of the safety valve. The drip can be piped to the
drain by installing a catching unit just below the safety valve. The drain installed below
the safety valve outlet must be piped down vertically and located in the environment that
is free from the onset of freezing conditions.
In case the existing plumbing does not enable you to pipe the dripping water from
the return safety valve into the drain, you can avoid the dripping by installing a 3-litre
expansion tank on the inlet water pipe of the boiler.
In order to provide correct operation of the relief valve, periodical inspections of the
relief valve should be carried out by the user. To check the valve, you should open the
outlet of the return safety valve by turning the handle or unscrewing the nut of the valve
(depending on the type of the valve). The valve is operating properly if the water comes
out of the nozzle when the outlet is open.
EN