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DEHOUST GMBH – GUTENBERGSTR. 5-7 – D-69181 LEIMEN – www.dehoust.com

1.7.

Requirements for operating personnel

This

break tank system

 must be assembled, commissioned, repaired and decommissioned only by persons who have been trained,

instructed and authorised for this purposed. If necessary, training can be provided by the manufacturer/supplier at the request of

the operator. Training sessions on the system are to be conducted with the supervision of technical professionals. The relevant

authorisations  of  personnel  must  be  clearly  specified  by  the  operator  in  the  form  of  a  user  guide.  Special  qualifications  are

additionally required for the following activities:

Work on the electrical equipment is to be carried out only by trained electricians only.

Assembly, maintenance and repair work must be carried out only by qualified professionals.

The basic regulations for occupational safety and accident prevention must be followed.

2.  General information

The manual is part of the specified series and its models. The manual describes the proper and safe use of the equipment in all

operating  phases. The  type  plate indicates the series and size, the  most  important  operational  data  and the serial  number.  To

uphold any warranty claims in the event of damage, the authorised dealer must be immediately notified with the installation site

and serial number of the machine.

2.1.

Warranty and liability

The  general  delivery  conditions  and  terms  of  sale  of  DEHOUST  shall  apply.  Any  warranty  and  liability  claims  for  personal  or

material damage are void if they can be attributed to one or more of the following causes.

Improper use of the

break tank system

Improper assembly, commissioning, operation and maintenance of the

break tank system

Non-compliance with the instructions in the manual regarding transportation, storage, assembly, commissioning, operation,

maintenance and repair of the

break tank system

Unauthorised structural modifications to the

break tank system

Improperly performed repairs

Disasters caused by third party exposure and force majeure

2.2.

Legal warranty obligation (excerpt)

Statutory warranty applies in accordance with § 437 BGB
(German Civil Code).

Within the warranty period, DEHOUST shall rectify free-of-charge any functional disturbances which can be attributed to production

or material defects. This includes all faults that occur despite verifiably proper installation, proper operation and compliance with

all operational and installation guides.

Summary of Contents for AQF 570/5

Page 1: ...Break tank system AQF For protection of drinking water from process water in hazard class 5 in accordance with DIN EN 1717 Operating and installation guide Current as of October 2015 ...

Page 2: ... 2 Legal warranty obligation excerpt 3 3 Description 4 3 1 Functional description 4 3 2 Technical specifications 4 3 3 Scope of delivery 5 3 4 Structure 6 3 5 Intended use 6 3 6 Unauthorised use 7 4 Transport 7 5 Installation 7 5 1 Assembly area 7 5 2 Immersion pressure pump in the storage tank 7 5 3 Connection to water pipes 8 5 4 Emergency overflow connection 9 5 5 Emergency overflow vent type A...

Page 3: ... the present manual Information attached directly to the system must be followed and must be kept in legible condition This applies for example for Safety information Labels for connections Type plate Before installation and commissioning the manual must be read by the operator and by the assigned technician operator and must be available at all times at the usage location of the break tank system...

Page 4: ...onnel is regularly trained in all relevant matters concerning occupational safety and environmental protection and has understood the manual and in particular has read and understood the safety instructions contained in it safety and warning signs on the break tank system are not removed and all remain legible any other hazards that arise from the specific working conditions at the operation site ...

Page 5: ...s and size the most important operational data and the serial number To uphold any warranty claims in the event of damage the authorised dealer must be immediately notified with the installation site and serial number of the machine 2 1 Warranty and liability The general delivery conditions and terms of sale of DEHOUST shall apply Any warranty and liability claims for personal or material damage a...

Page 6: ...istered by the automatic switch and the immersion pressure pump is switched on until the switch off pressure is reached again The immersion pressure pump will continue running for approx 10 seconds after reaching the switch off pressure To reduce the switching frequency of the pressure booster the installation of a membrane pressure expansion vessel of at least 50 litres in volume is recommended i...

Page 7: ...break tank system consisting of Storage tank 570 litre type Aquaform Emergency overflow connection DN 70 on storage tank Type AB drinking water feed according to DIN EN 1717 Mechanical float valve for regulation of fill level quantity Immersion pressure pump HDPE pressure pipe with quick close Connection line of break tank system incl 2 m connecting cable User guide ...

Page 8: ...ibed in the documentation of the relevant version Never operate the break tank system without pumping medium The minimum volumetric flow cannot exceed 2 l min 0 12 m A lower volumetric flow of the consumers will result in unusually frequent switching on and off of the immersion pump In this case an appropriately dimensioned expansion vessel must additionally be placed in the pressure line Do not r...

Page 9: ... to DEHOUST in writing 5 Assembly 5 1 Assembly area The break tank system must be set up in a frost proof dry and well ventilated room on ground level and on a level surface The load bearing capacity must be equal at a minimum to the total weight of the break tank system in filled operating condition see 3 2 The room temperature must not exceed the maximum permissible temperature see 3 2 to minimi...

Page 10: ...tank system and seal Connect the connection line in de energised state There should not be any forces applied to the connection sockets and system Install a pressure reducer in front of the system if necessary to ensure that no more than 5 bar of primary pressure is fed from the drinking water network We recommend installing a shut off valve a detachable screw and an external fine water filter The...

Page 11: ...ff valve and a detachable screw Figure 5 Connection of the process water line 5 4 Emergency overflow connection Connect the emergency overflow connection DN 70 see 3 2 of the break tank system with the channel interface or a suitable pump system For this purpose insert a DN 70 HT pipe of approx 2 3 cm into the provided DN 70 green lip seal and install the pipe according to the intended connection ...

Page 12: ... Connection of the overflow connection 5 5 Emergency overflow vent type AB If a backflow occurs due to a drain blockage defect of the pumping station extending into the process water storage tank of the break tank system the water is drained through the tank s side emergency overflow vent into the installation room This free overflow is required to protect the mains water back up line in accordanc...

Page 13: ...ed is connected to the drinking water network Process water connection is connected to the process water line System is correctly connected electrically 6 1 Fill container and start immersion pressure pump 1 Open the shut off valve on the drinking water connection and the tank will automatically fill with drinking water 2 As soon as the vessel if filled the mechanical float valve switches the drin...

Page 14: ... seal Time interval half yearly 7 1 3 Mechanical float valve Check the mechanical float valves for functioning Open the process water consumer and wait until the fill level in the break tank system has fallen so that the ball valve is open Close the process water consumer again and wait until the ball valve closes again Time interval half yearly 7 1 4 Functioning of immersion pressure pump Check p...

Page 15: ... should also be replaced 7 2 2 Removal of the immersion pressure pump The immersion pressure pump is connected in the inside of the tank through an electrical plug connection When it is necessary to remove the immersion pressure pump the electrical plug connection can be disconnected and the immersion pressure pump can be removed The pressure hose must be removed by disconnecting the hose clip fro...

Page 16: ...closed Open line Float switch switches Check float switch Service Not correct reposition if necessary replace Dry run immersion pressure Drinking water feed volume Pressure reducer or shut off valve pump Not sufficient check and adjust Service Dry run protection is automatically reset after 3 min After 4 unsuccessful starts reset time interval is increased to 1 hour After 4 more unsuccessful start...

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