Set-Up; Installation; Water Connection; Installation Layout Above The Water Level - Bencke EWT 80-40/-41 Bedienungsanleitung

Set-up/Installation
3.3

Set-up

Set up the electric heat exchanger in frost-proof and dry rooms with non-aggressi-
ve atmophere only. Dripping water might damage the electric heat exchanger.
Ensure easy access for installation and removal purposes.
The following water values are always to be observed for the electric heat exchanger.
EWT 80-40/-41/-70/-71
Chloride contents
take care
Free chlorine
pH Value
EWT 80-T/-81
Chloride contents
Free chlorine
pH Value
salt contents
Water throughput
Minimum operational overpressure
Maximum operational overpressure
The risk of combustion exists in the case of a failure of the safety devices.
Overheating of the electric heat exchanger might cause a fire.
take care
Draining of the electric heat exchanger during operation must be prevented. Do not
store any combustible material in the environment.
3.4

Installation

Check the electric heat exchanger before installation for visible damage.
The electric heat exchanger can be installed horizontally or vertically above or
below water level.
When installed either 0,5 m above or below the water-level the manometric safety
switch (low-water safety device) loses its effectiveness. In this event, instead of a
manometric switch, it is absolutely necessary to fit a Behncke
(see EWT 80-41/-71/-T/-81).
3.5

Water Connection

3.5.1

Installation Layout Above the Water Level

Figure: horizontal installation (EWT 80-40/-70)
44
max. up to 500 mg/l
max. up to 1.3 mg/l
6,8 to 8,2
max. up to 3000 mg/l
unlimited
6,8 to 8,2
max. 3,5%
min. 1000 l/h
10 kPa (0,1 bar)
300 kPa (3 bar)
®
flow switch