The control equipment consists of the control cabinet with
microprocessor
control,
compressors with three-phase current), 2 solenoid valves
and the air compressor.
Separate instructions are available detailing how to operate
and service the control unit.
For systems for less than 50 inhabitants, power is supplied
through an earthed safety socket to be provided by the
customer. Larger systems must be connected by an
electrician in accordance with the terminal plan supplied. It is
essential to observe the compressor's direction of rotation.
The maintenance instructions provided by the manufacturer should be observed when
maintaining the compressor!
All tanks should be filled with water before commissioning. Never operate the membrane pipe aerators if
the tanks are not yet filled with water.
The control equipment is set and operated according to the separate instructions provided for controlling
the waste water treatment system.
Otto Graf GmbH – Carl-Zeiss-Str. 2-6 – D-79331 Teningen – Tel.: 0049/(0)7641/589-0 – Fax: 0049/(0)7641/589-50
GRAF SARL – 45, Route d´Ernolsheim – F-67120 Dachstein Gare – Tel.: 0033/388497310 – Fax: 0033/388493280
GRAF Iberica – C/Marquès Caldes de Montbui, 114 baixos – ES-17003 Girona – Tel.: +34/972 913 767 – Fax: +34/972 913 766
GRAF Ltd – Maidstone, Kent – UK-ME16 8Ry – Phone: +44 (0) 16 22 68 65 50
info@graf.info
www.graf.info
5.
Assembling the control equipment
motor
protection
switch
6.
Commissioning
20 / 40
(for
05-2011