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have acquired). Drill two holes of appropriate depth in the wall using a drill bit with the
diameter corresponding to the anchor bolts supplied with the water heater. Insert the
bolts into the holes and tighten the bolt nuts firmly by turning the bolt hooks clockwise,
then hang the water heater on the anchor bolt hooks (see Fig. 2,3).
Connecting to the water main
1. The water heater must be connected to the water main with a minimum pressure of
0.1 MPa and a maximum pressure of 0.6 MPa.
NOTE!
The water heater is a product, in which water pressure corresponds to water pressure
in the water main. If water pressure in the water main exceeds 0.6 MPa, a pressure-
reducing valve must be installed before the heater to ensure that water pressure does
not exceed 0.6 MPa.
2. To connect the water heater to the water main, 12 mm (G1/2) diameter pipes are
used.
3. Use rubber seal gaskets on the threaded ends of the pipes in order to prevent
leakage when connecting the pipes.
4. Screw the safety relief valve on the inlet nozzle, which is marked in blue and has a
water flow direction arrow in such a way that that the water flow coincides with the
direction of the arrow on the valve body. Put the water drainage tube* (water may
appear during heating) on the pressure relief port of the safety relief valve to allow
water drainage into the sewer (see Fig. 5) (the tube must be directed downwards and
must not be bent).
5. Connect the heater with the mounted valve to the water main and install the shut-off
valve at the water inlet point.
6. Connect the required number of water consumption points to the outlet nozzle
marked in red.
7. Open the shut-off valve of the water main and one of the outlet valves. When the
tank is full, which is prompted by water leaking from the outlet valve, close the outlet
valve and make sure that all connectors are tight.
* not included in the scope of delivery. New hoses must be used, old hoses must not
be reused
WARNING!
Do not operate the water heater without a safety relief valve installed on the inlet
nozzle.
WARNING!
The pressure-relief device must be activated on a regular basis to remove the scale
and ensure proper operation.
Summary of Contents for Optima FS47 V Series
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