tiki FTG 30 E5, Instructions For Use Manual

Page: 14 / 48

14
EN
Connection and installation dimensions of the
water heater [mm]
CONNECTION TO THE WATER SUPPLY
The water heater connections for the inlet and outlet of water are colour - coded. The
inlet of cold water is marked with blue colour, while the hot water outlet is marked
with red colour.
The water heater can 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 installed in
accordance with the selected installation mode.
In a closed, pressurized system (Fig. 3) pressurised mix taps should be used at the
outlet points. To ensure safe operation of the heater a safety valve should be
installed on the inlet pipe to prevent elevation of pressure for more than 0.1 MPa
(1 bar) above the nominal pressure. The outlet opening on the safety 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 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 placed in an environment that is free from the onset of
freezing conditions.
To avoid water dripping from the safety valve, an expansion tank should be installed
on the inlet pipe of the heater with the capacity of at least 5 % of the heater volume.
To ensure proper operation of the safety valve, periodical inspections must be carried
Fig. 1: Vertical installation on a wall
(Applicable to FTG 30 E5, FTG 50 E5, FTG 80 E5)
Fig. 2: Horizontal installation on a wall
(Applicable to FTG 50 E5, FTG 80 E5)
A B C D
FTG 30 E5 635 515 150 250
FTG 50 E5 920 765 185 500
FTG 80 E5 1350 1195 185 930