A.O. Smith TWI 45-190 Installation, Air humidity and ambient temperature, Maximum floor loading

3 Installation

3.3.1Air 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.

Specifications for air humidity and ambient temperature

Air humidity and ambient temperature

Air humidity

max. 93% RH at +25°C

Ambient temperature

Functional: 0 ≤ t ≤ 60°C

3.3.2Maximum floor loading

In view of the weight of the device, take the maximum floor loading into account. See the table below.

Specification for weight in connection with the maximum floor loading

Weight of the device filled with water

TWI 35-130

199 kg

TWI 45-190

271 kg

3.3.3Water 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 specifications.

Specifications for water

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

Remark

When the specifications mentioned in the table are deviated from, the protection of the tank can not be guaranteed (11 “Warranty (certificate)”).

3.3.4Working area

In view of the accessibility of the device, it is recommended to apply the following distances (see figure):

•AA: on the front side of the device: 100 cm.

•BB: around the device: 50 cm.

•Top side of the device: 50 cm.

16 Instruction manual TWI 35-130 G/TWI 45-190 G