22 /EN
Closed or Pressurized System (direct from the water network system):
(regarding the
heater’s water supply, we recommend installing a relief valve (NOT INCLUDED) at the hot
water outlet, calibrated at (0,68 MPa) (7 kgf/cm2) (100 psi).
See Fig. 5
Use the equipment’s certified piping, which is resistant to pressure and temperature.
Before using the appliance, the tank should be filled with water and emptied to eliminate
any possible residual impurities.
IMPORTANT:
when there is excessive pressure, water exits through the relief valve. This is
a normal mechanism and does not mean the heater has a failure. Avoid undue water
spills by installing a drainage tube at the relief valve exit towards the drains.
Maximum operating pressure of 7,13 kgf/cm2 (0,7 MPa)
We recommend checking the relief valve (included) at least once a year, to make sure
it is in good working condition.
Open System Installation Diagram
FIG. 4
Drain valve
(Not included)
Never connect this outlet
to your plumbing system
Water supply valve
To the open drain
Cold-water inlet
(Not included)
Open system
Air tubes
Water storage
tank
Hot water outlet
NPT Adapters
(included)
Union Nuts
(Not included)
Air tubes
20 cm
At least
