EN
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Installation and instruction manual
1. General description
Power Reducer SA is a completely stand-alone control device with a built-in energy meter that provides the facility of producing hot water
without ever drawing power from the grid. Connected to a water heater / storage tank with an electric heating element rated up to 3.0 kW, the
Power Reducer SA can deliver immediate savings.
The Power Reducer SA diverts surplus energy automatically (even just a few hundred Watts) without drawing from the grid. Measuring availa-
ble energy by means of the current transformer (CT) installed on the meter line of the grid supply, the Power Reducer SA minimizes the power
demand of the electric element in the water heater / hot water storage tank, consequently avoiding the need to draw electricity from the grid.
Contents of the pack
9
1 x Power Reducer
9
1 x split core Current Transformer (CT)
2. Safety warnings
All hardware connections must be made by a person who is suitably qualified and aware of the risks associated with installation, observing
the requisite standards of safety, and with the equipment isolated from the power supply.
The user accepts all responsibilities and risks connected with the steps of installing, configuring and using products to the end of obtaining
the benefits and advantages they afford. The liability of the Astrel Group in respect of its products is regulated by the Astrel Group General
Conditions of Sale (published on the company’s website www.astrelgroup.com).
Do not disassemble, open up or attempt to repair the product. Opening up a sealed component has the effect of invalidating the warranty.
Warnings for installation
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IMPORTANT: The Power Reducer can be connected only to a purely resistive load;
it cannot be used with water heaters having built-
in electronic control circuit boards, but must be connected directly to the heating element and the relative electromechanical thermostat.
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WARNING:
Use TERMINAL 1 (connector A and B) only to connect the two wires supplying power to a resistive load. Any other kind
of connection (e.g. sharing A or B with L or N) is likely to cause electrical damage internally, and will invalidate the manufacturer’s
warranty.
9
WARNING:
install a fuse or thermal magnetic breaker rated 20A to protect the device.
9
WARNING:
before cutting the cable, ensure that the water heater is not powered up.
9
WARNING:
switch on the Power Reducer only with the cover closed.
280 mm
70,5 mm
295 mm
Indicator LEDs
Button
14 cm
13,6 cm
2
1
4
3
Clearance
7 cm minimum
Clearance
7 cm minimum
1
Ø 6 mm fixing holes
Fig. 1
Fig. 2
Summary of Contents for PR-SA
Page 1: ...Installation and instruction manual 4 noks Power Reducer SA IT EN FR DE...
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