Beretta SC ACS 160 E, Руководство пользователя

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16
SYSTEM VARIANT WITH SINGLE RETURN TO STORAGE CYLINDER
b
The following procedure must be completed before putting the sy-
stem into service.
Proceed as follows to disable the return to the middle of the storage cylin-
der.
- Close cock RP2 (primary return to middle of storage cylinder);
b
We recommend that you screw a 1 ½” M plug into the RP2 fitting.
- Identify the diverter valve with servomotor at the rear of the mixer;
- Loosen the two lock screws with a screwdriver;
- Remove the servomotor by pulling it upwards and place it to the side
of the valve.
OPERATION
The product is designed to produce domestic hot water
using heat accumulated in a storage cylinder.
Any other use, or any use incompatible with the product’s
technical specifications, is considered improper.
Do not connect the product directly to a boiler.
The unit leaves the factory already configured for use.
Only use the unit with potable water supplies that respect
the nominal water quality values given in the table.
The values given are indicative and allowance should be
made for operating conditions.
b
Values in excess of those specified in the table alon-
gside can damage the product and automatically
invalidate the warranty. It is therefore important to
analyse the water to ensure that all values are within
the limits given in the table.
ELECTRICAL CONNECTIONS
The product must be installed and all electrical connections made by suitably qualified personnel in conformity to appli-
cable standards. The controller’s mains power cable must be connected to a fused, two-pole switch (power supply 230
VAC, 50 Hz). The product must be correctly connected to ground.
b
The unit must be connected to the mains power supply via an earth leakage breaker in accordance with applicable
standards. The manufacturer cannot be held responsible for the consequences of improper uses.
b
Electrical connections must only be made by qualified personnel.
RP2
A
B
WATER PARAMETER
UNIT OF
MEASURE
MIN/MAX
PERMISSIBLE
VALUE FOR
COPPER-BRAZED
HEAT EXCHANGERS
PH
7-9 (indicative of
saturation)
Saturation index
(delta PH)
-0.2<0<+0.2
Total hardness °Fr 15-30
Conductivity μS/cm 10…500
Solid substances mg/l <30
Free chlorine mg/l <0.5
Hydrogen sulphide mg/l <0.05
Ammonia mg/l <2
Bicarbonate mg/l <300
Bicarbonate/Hydrogen
sulphide
mg/l >1.0
Sulphur mg/l <1
Nitrate mg/l <100
Nitrite mg/l <0.1
Sulphate mg/l <100
Manganese mg/l <0.1
Dissolved iron mg/l <0.2
Free, aggressive car-
bon dioxide
mg/l <20