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Installation
The device should be installed in accordance with the drawing on the first page of the
user manual. Any other installation position may result in serious damage to the device.
Installation should take place as close as possible to a cold water connection. The product
should be protected from the effects of frost (for example in caravans, summer houses,
etc.).
When mounting swivels and compression fittings, always use 2 open-end spanners in or-
der to prevent bending and twisting pipes and accessories.
Frost
In case of risk of frost in a room, the device should not be installed in this room. If, de-
spite this advice, the device is installed in a room where there is a risk of frost, the device
should be emptied before the risk arises.
The Hotto is not suitable for installation on a reverse osmosis installation or a
water softening installation with pH reduction.
Always use the Hotto safety group for connecting. Never use the device without a safety
group!
Use of a different tap than the supplied Hotto 3-in-1 tap, or a change in the
tap/boiler combination, may damage the product. The warranty will always become invalid
in case of incorrect installation or modification!
Important: Never insert the plug in the earthed wall socket before the appliance is filled
with water!
Never connect the Hotto boiler to a hot water pipe. This might decrease the life
expectancy of the boiler due to increased limescale build-up on the heating element
and inside the mixing valve.
Water quality
In areas where the water hardness is above 12 °dH a water filter approved by Hotto
must be placed in the supply water line. Failure in doing so will void the warranty. See
www.hotto.com for more information and ordering options for water filters. The water
quality must meet the following requirements:
pH scale
Fe (Iron level)
CI (Chlorine content)
DH (German Hardness)
Minimum flow pressure
2A
Connecting the tap
Step 1: Connect the cold and hot water hoses (G) by screwing them in the tap.
Step 2: Place the tap in the hole (ø 33 - 40 mm). The Hotto logo of the rosette (A) with
rubber ring (B) should be pointing towards the front.
14
7 - 9.5 pH
< 0.2 mg/l
< 150 mg/l
< 12 °DH
0.1 MPa
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