16 Instruction manual TWI 35-130 G/TWI 45-190 G
Water composition
Hardness
(alkaline earth ions)
> 1.00 mmol/l:
- German hardness > 5.6° dH
- French hardness > 10.0° fH
- British hardness > 7.0° eH
Conductivity > 125 muS/cm
Acidity (pH-value) 7.0 < pH-value < 9.5
3.3.1 Air humidity and ambient temperature
The installation area should be frost-free or be protected against frost. The
table gives the ambient conditions that shall be observed in order to be able to
ensure the functioning of the applied electronics.
Specifi cations for air humidity and ambient temperature
3.3.2 Maximum fl oor loading
In view of the weight of the device, take the maximum fl oor loading into
account. See the table below.
Specifi cation for weight in connection with the maximum fl oor loading
3.3.3 Water composition
The device is designed for heating drinking water. The drinking water shall
comply with the regulations for drinking water for human consumption. The
table gives an overview of the specifi cations.
Specifi cations for water
Remark
When the specifi cations mentioned in the table are deviated from, the
protection of the tank can not be guaranteed
(11 “Warranty (certifi cate)”).
3.3.4 Working area
In view of the accessibility of the device, it is recommended to apply the
following distances (see fi gure):
• AA: on the front side of the device: 100 cm.
• BB: around the device: 50 cm.
• Top side of the device: 50 cm.
Installation
3
Air humidity and ambient temperature
Air humidity max. 93% RH at +25°C
Ambient temperature Functional: 0 ≤ t ≤ 60°C
Weight of the device fi lled with water
TWI 35-130 199 kg
TWI 45-190 271 kg
