Oventrop 138119012 Manuale utente

Valves, controls + systems

Operating instructions

EN Valve for return layering with actuator DN 25

Valve for return layering with actuator DN 25 Contents

138119084-V01.07.2020

1. General information ................................................................................................................4

1.1 Validity of the operating instruction...........................................................................................4

1.2 Type plate ..................................................................................................................................4

1.3 Extent of supply ........................................................................................................................4

1.4 Contact......................................................................................................................................4

1.5 Declaration of conformity ..........................................................................................................4

1.6 Symbols used............................................................................................................................4

2. Safety-related information......................................................................................................5

2.1 Correct use................................................................................................................................5

2.2 Warnings ...................................................................................................................................5

2.3 Safety notes ..............................................................................................................................5

2.3.1 Dangercausedbyinadequatelyqualiedpersonnel ...............................................................................5

2.3.2 Danger to life due to electric current........................................................................................................5

2.3.3 Risk of injury from pressurised components............................................................................................ 5

2.3.4 Riskofburnsduetoaninadvertentdischargeofhotuids ....................................................................5

2.3.5 Risk of burns due to hot components and surfaces................................................................................ 6

2.3.6 Risk of injury in case of improper work.................................................................................................... 6

2.3.7 Availability of the operating instructions ..................................................................................................6

3. Technical description ..............................................................................................................6

3.1 Design .......................................................................................................................................6

3.1.1 Dimensions of the actuator ......................................................................................................................6

3.1.2 Dimensions of the valve for return layering.............................................................................................. 7

3.2 Functional description...............................................................................................................7

3.3 Installation scheme....................................................................................................................8

3.4 Technical data ...........................................................................................................................9

3.4.1 Actuator.................................................................................................................................................... 9

3.4.2 Three-way ball valve ................................................................................................................................9

4. Storage.....................................................................................................................................9

5. Installation..............................................................................................................................10

5.1 Installation of the valve for return layering ..............................................................................10

5.2 Installation of the actuator.......................................................................................................11

5.3 Electrical connection of the actuator ......................................................................................12

6. Commissioning......................................................................................................................13

7. Maintenance ..........................................................................................................................13

8. Disposal..................................................................................................................................13

Contents

Page

General information Valve for return layering with actuator DN 25

4138119084-V01.07.2020

1. General information

The original operating instructions were drafted in

German.

The operating instructions in other languages have

been translated from German.

1.1 Validity of the operating instruction

These operating instructions are valid for the Oven-

trop valve for return layering with actuator DN 25.

1.2 Type plate

The type plate is located on the front face of the

product.

Illust. 1: Type plate

1.3 Extent of supply

• Actuator

• Cable, length 1.7m

• Three-way ball valve

• Operating instructions

1.4 Contact

Contact address

OVENTROP GmbH & Co. KG

Paul-Oventrop-Straße 1

59939 Olsberg

GERMANY

www.oventrop.com

Technical services

Phone: +49 (0) 29 62 82-234

1.5 Declaration of conformity

Oventrop GmbH & Co. KG hereby declares that this

product complies with the basic requirements and

other relevant provisions of the EU Directives con-

cerned. The declaration of conformity can be ob-

tained from the manufacturer.

1.6 Symbols used

Highlights important information and further

explanations.

fAction required

• List

Fixed order. Steps 1 to X.

ZResult of action

Valve for return layering with actuator DN 25 Safety-related information

138119084-V01.07.2020

2. Safety-related information

2.1 Correct use

Operating safety is only guaranteed if the product is

used correctly.

This product is designed for the control of return

layering in the storage cylinder circuit in combination

with the Oventrop fresh water station. Any other use

of the product will be considered incorrect use.

Claims of any kind against the manufacturer and/or

its authorised representatives due to damage caused

by incorrect use will not be accepted.

Observance of the operating instructions is part of

compliance with correct use.

2.2 Warnings

Each warning contains the following elements:

Warning symbol

SIGNAL WORD

Type and source of danger

Possible consequences if the danger occurs

or the warning is ignored.

fWays to avoid the danger.

The signal words identify the severity of the danger

arising from a situation.

DANGER

Indicates an imminent danger with high risk.

The situation will lead to death or serious

injury if not avoided.

WARNING

Indicates a possible danger with moderate

risk. The situation may lead to death or seri-

ous injury if not avoided.

CAUTION

Indicates a possible danger with lower risk.

The situation will lead to minor and reversible

injury if not avoided.

NOTICE

Indicates a situation that may lead to damage

to property if not avoided.

2.3 Safety notes

We have developed this product in accordance with

current safety requirements.

Please observe the following notes concerning safe

use.

2.3.1 Danger caused by inadequately qualied

personnel

Any work on this product must only be carried out by

qualiedtradespeople.

As a result of their professional training and experi-

ence as well as their knowledge of the relevant legal

regulations,qualiedtradespeopleareabletocarry

out any work on the described product professional-

ly.

User

The user must be informed how to operate the prod-

uctbyqualiedtradespeople.

2.3.2 Danger to life due to electric current

Any work on the power supply must only be carried

outbyaqualiedelectrician.

fDo not put the product into operation if there are

visible signs of damage.

fCompletely disconnect the product from the power

supply.

fCheck that no voltage is present.

fSecure the product against switching back on.

fOnly install the product in dry indoor areas.

2.3.3 Risk of injury from pressurised

components

fOnly carry out work when the system is depressur-

ised.

fObserve the permissible operating pressures during

operation.

2.3.4 Risk of burns due to an inadvertent

discharge of hot uids

fOnly carry out work when the system is depressur-

ised.

fAllow the product to cool down before working on it.

fCheck that the product is not leaking after work is

complete.

fWear safety goggles.

Technical description Valve for return layering with actuator DN 25

6138119084-V01.07.2020

2.3.5 Risk of burns due to hot components and

surfaces

fAllow the product to cool down before working on it.

fWear suitable protective clothing to avoid unprotect-

edcontactwithhotsystemcomponentsandttings.

2.3.6 Risk of injury in case of improper work

Stored energies, angular components, protrusions

and edges both inside and outside the product may

cause injuries.

fBefore starting work, make sure that there is enough

space.

fHandle open and hard-edged components with

care.

fMake sure that the work place is tidy and clean to

avoid accidents.

2.3.7 Availability of the operating instructions

Any person working on the product has to read and

apply these operating instructions and all other valid

documents.

The operating instructions must be available at the

installation location of the product.

fHand these operating instructions and all other rele-

vant documents over to the user.

3. Technical description

3.1 Design

3.1.1 Dimensions of the actuator

109

Illust. 2: Dimensions of the actuator

Valve for return layering with actuator DN 25 Technical description

138119084-V01.07.2020

3.1.2 Dimensions of the valve for return

layering

Illust. 3: Dimensions of the valve for return layering

3.2 Functional description

The return temperature from the fresh water station

to the storage cylinder can vary considerably de-

pending on the operating status. When drawing off

hot potable water, very low return temperatures may

be reached. Whereas considerably higher return tem-

peratures can be expected during circulation opera-

tion without hot potable water consumption.

The temperature of the water in the upper section

of the storage cylinder section is higher than in the

lower section. This temperature layering is necessary

forefcientoperationofthestoragecylinder.

The aim of return temperature layering is to disturb

the temperature layering in the storage cylinder as lit-

tle as possible. The returning water should ideally be

layered in the section of the storage cylinder where

the stored water has the same temperature.

The valve for return temperature layering with ac-

tuator DN 25 ensures the temperature-controlled

layering of the returning water in the lower or central

storage cylinder section. Temperature sensors in the

storage cylinder and in the fresh water station pro-

vide the controller of the fresh water station with the

necessary data for calculating the appropriate valve

position.

The controller of the fresh water station takes over

the control of the actuator according to the required

layering position.

Technical description Valve for return layering with actuator DN 25

8138119084-V01.07.2020

3.3 Installation scheme

4 3

Illust. 4: Installation scheme

(1) Temperature sensor

(2) Supply

(3) Electrical connection of the actuator

(4) Return

(5) Valve for return layering with actuator DN 25

Valve for return layering with actuator DN 25 Storage

138119084-V01.07.2020

3.4 Technical data

3.4.1 Actuator

General information

Weight 0.33 kg

Ambient temperature 0 °C to +55 °C

Ambient humidity max. 85% not

condensing

Pollution degree of the

environment

Electrical data

Nominal voltage 230 V AC

Nominal voltage fre-

quency

50 Hz

Power consumption

dimensioning

9 VA

Connection supply /

control

Plug

Connecting plug Molex Mini-Fit Jr. 39-

01-2060

Functional data

Torque actuator max. 5 Nm

Manual setting No

Operating time actuator 20 S / 90°

Protection

Protection class IEC/EN II reinforced insulation

Protection IEC/EN IP40

Operation mode Type 1

(EN 60730-1:2016)

Rated surge voltage

supply / control

2.5 kV

3.4.2 Three-way ball valve

General information

Weight 0.35 kg

Functional data

Fluids Cold and hot water,

potable water, water

with a glycol proportion

up to 50 %

Fluid temperature -20 to + 125°C

Permissible pressure ps 1600 kPa

Differential pressure

Δpmax

600 kPa

Differential pressure

note

200 kPa for silent op-

eration

Leakage rate Leakage rate B

(EN 12266-1)

Pipe connections Female thread Rp1

Angle of rotation 90°

Installation position Vertical to horizontal

(related to the stem)

Materials

Body, closing body, stem Brass

Stem seal EPDM

Stem seat PTFE

Ball seat PTFE, O-ring EPDM

4. Storage

Temperature

range

-10 °C to +70 °C

Relative air

humidity

max. 85% not condensing

Particles Store dry and free from dust

Mechanical

inuences

Protected from mechanical agitation

Weather

inuences

Do not store outdoors

Protect from direct sunlight

Chemical

inuences

Do not store together with aggres-

siveuids

Installation Valve for return layering with actuator DN 25

10 138119084-V01.07.2020

5. Installation

Also consult the operating instructions of

your fresh water station!!

5.1 Installation of the valve for return

layering

NOTICE

Malfunctions and damage to the actuator

due to a wrong installation position

The actuator can be damaged and its function

be impaired if it is installed in a vertical down-

ward position.

fDo not install the valve for return layering

with actuator DN 25 in a vertical downward

position.

Illust. 5: Installation position

WARNING

Risk of injury from pressurised uids

Fluids escaping under pressure may lead to

injuries.

fOnly carry out installation work when the

system is depressurised.

fWhenretrottinganexistinginstallation:

Drain the system or close the supply

pipes of the section of the system and

depressurise it.

fWear safety gloves.

CAUTION

Risk of scalding due to hot uids

If the installation has been in operation, there

is a risk of scalding due to the unintentional

discharge of hot water or water steam.

fAllow the system to cool down.

fWear safety goggles.

CAUTION

Risk of burns due to hot components

Any unprotected contact with hot compo-

nents may lead to burns.

fWear safety gloves.

Ensure that the product remains easily acces-

sible.

NOTICE

Risk of damage to property due to foreign

bodies (e.g. shavings, dirt), sealants and

lubricants

Valves can be damaged and their function be

impaired by foreign bodies, greasing agents

or oil.

fDo not use any greasing agents or oil

during installation.

fFlush any dirt particles or grease or oil

residues out of the pipework before in-

stalling the product.

fConsider the latest technical status (e.g.

VDI 2035) when choosing the operating

uid.

NOTICE

Risk of damage due to pressure surges

Suddenllingofthestationwithwatermay

lead to damage, for instance to the sensors

or sealing points.

fAlways open and close the ball valves

slowly.

1. Completely disconnect your fresh water station

from the power supply.

2. Slowly close the isolating ball valve for storage

cylinder circuit return.

3. Slowly close the isolating ball valve for storage

cylinder circuit supply.

4. Drain the water from the storage cylinder circuit at

the lower connection of the storage cylinder.

5. Install the valve for return layering as shown in

Illust. 4 auf Seite 8.

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