Fitting The Magnesium Protection; Hydraulic Connection; Hydraulic Safety - Atlantic CORHYDRO Manual De Instalación, Uso Y Mantenimiento

4. FITTING THE MAGNESIUM PROTECTION

Refer to the specifi c Anode manual for the installation.

5. HYDRAULIC CONNECTION

EN
Before proceeding with the hydraulic connection, the supply pipes must be thoroughly
cleaned to avoid introducing metal or other particles into the tank.
If metal pipes are used, the connection to the hot water outlet must use a dielectric pipe
joint or cast-iron sleeve to prevent galvanic corrosion (iron-copper). Brass connections
are prohibited here. A certifi ed safety unit or non-return fl ap and safety valve assembly is
obligatory.
If the network supply pressure is ≥ 5 bar, a pressure reducer must be fi tted to the distribution
outlet. A pressure of 3 to 4 bar is recommended. Check that the pressure does not exceed
the service pressure in operation.
Fit a bleed outlet to the tank´s top connection (DHW outlet).
To avoid clogging the installation´s components (heat exchangers, safety valve, safety unit)
with sludge, a fi lter must be fi tted to the domestic cold water supply outlet feeding the tank.
The domestic hot water in the tank can reach a high temperature. It is thus essential to fi t a
thermostatic mixing valve before water is distributed to the taps. The temperature setting at
the taps should comply with the regulations in force.
If COMPOSITE MATERIAL pipes (PER, PVC etc.) are used a temperature limiter must
!
be fi tted to the tank output and adjusted according to the performance of the material
used.
Recommendations:In very hard-water regions (Th>20°F), the use of a softener will not
invalidate the warranty as long as the softener is set up in accordance with standard practice
and is checked and maintained regularly. The water hardness must remain above 12°f.

5.1. Hydraulic safety

All installations must include hydraulic protection against:
1. Excess pressure in the distribution network,
2. Excess pressure due to rises in temperature (expansion during heating),
3. Excess pressure due to the failure of a thermostat or a contactor relay.
Drainage due to excess pressure must not be impeded. This means that the drain tube must
have a continuous and suffi cient slope and its diameter must be suited to the network.
Regardless of how the system is installed, it must have a cold water tap upstream of the
safety unit.
Page 20 / 86 CORHYDRO / CORFLEX CP090496-E