Grundfos 185 User manual

185 change-over device
Installation and operating instructions
185 Change-over device
Installation and operating instructions
Other languages
http://net.grundfos.com/qr/i/QR96681317
Handling chlorine
Installation and operating instructions
(all available languages)
http://net.grundfos.com/qr/i/96681297
GRUNDFOS INSTRUCTIONS

185 change-over device
English (GB)
Installation and operating instructions ..........................................................4
Declaration of conformity .................................................................17
Declaration of conformity .................................................................18
3
Table of contents

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. General information ........................4
1.1 Hazard statements..........................4
1.2 Notes ..................................4
1.3 Target group..............................4
1.4 Purpose of this manual .......................5
1.5 Safety of the system in the event of product failure ......5
1.6 Working with chemicals .......................5
2. Product introduction........................5
2.1 Intended use .............................5
2.2 Installation example .........................6
2.3 Operating principle..........................6
2.4 Identification..............................7
3. Delivery and handling .......................8
3.1 Handling ................................8
3.2 Unpacking ...............................8
4. Installation ..............................8
4.1 Installation location .........................8
4.2 Mechanical installation .......................8
4.3 Electrical installation .........................8
5. Startup................................10
5.1 Functional tests before startup..................10
5.2 Tightness checks before startup.................10
5.3 Starting up the 185 change-over device ............11
6. Operation ..............................12
6.1 Control cabinet ...........................12
6.2 Change-over device ........................12
6.3 Operation modes..........................12
6.4 Emergency operation .......................13
7. Fault finding ............................13
7.1 Device does not change over ..................13
7.2 Lamp does not light up ......................13
7.3 A fault is signalled at the potential-freeoutput.........13
7.4 Notes for other faults .......................13
8. Maintenance ............................14
8.1 Maintenance schedule ......................14
8.2 Cleaning ...............................14
8.3 Spare parts and maintenance kit ................14
9. Decommissioning ........................14
10. Technical data ...........................15
10.1 General data ............................15
10.2 Electrical data............................15
10.3 Dimensions .............................16
11. Disposing of the product ....................16
1. General information
Read this document before you install the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
1.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
1.2 Notes
The symbols and notes below may appear in Grundfos installation
and operating instructions, safety instructions and service
instructions.
Observe these instructions for explosion-proof products.
A blue or grey circle with a white graphical symbol
indicates that an action must be taken.
A red or grey circle with a diagonal bar, possibly with a
black graphical symbol, indicates that an action must not
be taken or must be stopped.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.
1.3 Target group
These installation and operating instructions are intended for
authorised and trained operating and service experts.
1.3.1 Qualification and training
The persons responsible for the installation, startup, operation and
maintenance must be appropriately qualified for these tasks. Areas
of responsibility, levels of authority and the supervision of the
persons must be precisely defined by the operating company. If
necessary, the persons must be trained appropriately.
1.3.2 Obligations of the operating company
• Observe the local safety regulations.
• Instruct the operating persons.
• Provide the stipulated safety equipment and personal protective
equipment.
• Arrange regular maintenance.
4
English (GB)

1.3.3 Obligations of the user
• Read this manual thoroughly before operating the product.
• Observe the recognised health and safety regulations as well as
the accident prevention regulations.
• Wear appropriate protective equipment in accordance with
national health and safety regulations when working at the
system and handling chemicals.
1.4 Purpose of this manual
These installation and operating instructions contain general
instructions that must be observed during installation, startup,
operation and maintenance of the product.
Non-observance of the safety instructions may have dangerous
consequences for persons, environment and the product, and may
result in the loss of any claims for damages.
1.5 Safety of the system in the event of product failure
If the product fails, the safety of the overall system must be
ensured. Use appropriate monitoring and control functions.
WARNING
Toxic material
Death or serious personal injury
‐Make sure that leaking chemicals do not cause
personal injury or damage to property.
‐Make sure that leak monitoring solutions and drip trays
are installed.
1.6 Working with chemicals
WARNING
Toxic material
Death or serious personal injury
‐Wear personal protective equipment when handling
chemicals.
‐Observe the chemical manufacturer's safety data
sheets (SDS) and safety instructions of the used
chemicals.
‐Observe the local regulations.
Make sure that parts in contact with the chemicals are
resistant to the chemicals under the specific operating
conditions.
When working with chlorine, see also the guidelines
"Handling chlorine" on Grundfos Product Center: http://
net.grundfos.com/qr/i/96681297 .
2. Product introduction
2.1 Intended use
The 185 change-over device is used for changing over the chlorine
gas or liquid chlorine supply between two container batteries. It is
used in Grundfos chlorine gas dosing systems for water treatment,
strictly complying with the instructions in this manual.
The 185 change-over device is intended for use with chlorine gas or
liquid chlorine. The allowed medium is specified on the nameplate.
WARNING
Toxic material
Death or serious personal injury
‐Other applications are not intended and are not
permitted.
‐Grundfos accept no responsibility for damages caused
by unintended use.
Related information
2.4.1 Nameplate
2.1.1 Improper use
WARNING
Toxic material
Death or serious personal injury
‐Improper use, misuse or misapplication can lead to
personal injury and damage to the equipment.
The operational safety of the product is only guaranteed, if it is used
in accordance with section Intended use.
• The product must not be used for media that are not specified
on the nameplate.
• The product must not be used in potentially explosive areas.
• The product must not be used if it is damaged.
• The product must not be used after improper repair.
• The product must not be used after unauthorised modification.
Related information
2.1 Intended use
5
English (GB)

2.2 Installation example
19
18
2
4
5 1 1a 16
18
13 12
14 15
19
17
20
11109
7
3
8
6
21
6
TM075188
Installation example of a chlorine gas dosing system with a
change-over device
Pos. Component Pos. Component
1 Chlorine drum 12 VGS injector
1a Chlorine drum scale 13 CR booster pump
2 Controller for the pneumatic shut-off valve 14 Flowmeter with 4-20 mA signal
3 Chlorine drum lifting device 15 Injection unit
4 185 change-over device 16 Gas sensor
5 Nitrogen rinsing device 17 Horn and flashlight
6 Expansion tank with bursting disc 18 Vent to a Grundfos chlorine gas neutralisation system
7 RV171(W) evaporator 19 Ventilation of the building
8 LiquFilt 524 heated liquid chlorine trap with filter 20 Central control cabinet (SCADA)
9 544 pressure reducing valve 21 Conex DIA-G gas warning system
10 VGA-148 vacuum regulator
11 VGS-145 chlorine gas dosing system
2.3 Operating principle
If one of the gas container batteries connected to the 185 change-
over device becomes empty, the contact manometer triggers the
change-over process. The respective motor valve closes the
connection to the empty container battery automatically. When the
closing motor valve reaches its end position, the second motor
valve opens the connection to the second container battery.
Signal lamps indicate the position of the valves at the control
cabinet.
The change-over device can be switched from automatic to manual
operation mode by means of the operation mode switch. In manual
operation mode, the motor valves are opened and closed with the
keys at the control cabinet.
In case of a failure of the motor valves, the additional bypass line of
the 185-2 change-over device permits operation by manual ball
valves.
Two potential-free contacts enable the transmission of the operating
status "open" for both motor valves to a control room.
Two potential-free contacts enable the indication of the valve
operation mode "man" or "auto" in a control room.
An additional contact transmits an alarm signal, if the pressure
remains below the contact manometer setting for more than 40
seconds.
6
English (GB)

2.4 Identification
2.4.1 Nameplate
Grundfos Water Treatment GmbH – Reetzstr. 85 – D-76327 Pfinztal
Made in Germany
UK importer:
Grundfos Pumps ltd. Grovebury Road Buzzard. LU7 4TL
185-1-C-200/W15,W15/N/1/G1,EN,1-G
PN: 96711167 SN: 00000048
CL2,200kg/h
230V 50/60Hz
P11 1950
1
2a/b
3a/b
4a/b
7a/b
8
9b
9a
9d
9c
9e
TM078211
Nameplate of a 185 change-over device
Pos. Description
1 Type designation
2a/b Product number, serial number
3a/b Allowed medium, capacity
4a/b Voltage, frequency
7a/b Production code, year and week
8 Barcode for product number and serial number
9a/b/c/d/e Marks of approval
2.4.2 Type key
Type
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
185 Change-over device
Bypass
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
1Without
2 With
Medium
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
CChlorine
Capacitiy
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
200 200 kg/h chlorine gas, 600 kg/h liquid chlorine
Connection, inlet
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
W15 Groove flange DN 25 (EN 1092) without counter flange
Connection, outlet
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
W15 Tongue flange DN 25 (EN 1092) without counter flange
Contact for remote manual/automatic indication
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
YWith
Control cabinet
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
1With
Supply voltage
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
G1 Control cabinet, 230 V, 50/60 Hz
H2 Control cabinet, 115 V, 50/60 Hz
Control cabinet version
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
1According to EN with cable labelling, contact input NO
Logo
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
GGrundfos
Certificate
185-1-C-200/W15,W15/Y/1/H2,1-G,C3
C3 Certificate 3.1 (EN 10204)
7
English (GB)

3. Delivery and handling
CAUTION
Crushing hazard
Minor or moderate personal injury
‐Wear protective equipment.
‐Handle with care, do not throw.
3.1 Handling
Observe when transporting or storing the device:
• Always store the device in a cool, dry place.
• All connections must be tightly sealed during transport and
storage.
• No foreign matter should get into lines and valves.
• No moisture should get into lines and valves.
Moisture in gas-conveying parts leads to corrosion-induced
leakages.
• Transport the product carefully.
• Do not lift the product on devices, flexible lines or cables.
• Use appropriate lifting devices to handle heavy parts.
3.2 Unpacking
Observe when unpacking the device:
• Observe all handling instructions.
• Open the packaging carefully.
• Check the change-over device for transport damage.
• Install as soon as possible after unpacking.
4. Installation
WARNING
Toxic material
Death or serious personal injury
‐Installation must be carried out by authorised and
trained experts.
‐Wear personal protective equipment when handling
chemicals.
4.1 Installation location
• Choose a mounting place that is free from vibrations.
• Observe the permissible ambient temperature.
4.2 Mechanical installation
4.2.1 Mounting the change-over device
1. Fix the included mounting accessories (base plates, threaded
rods, hexagonal nuts and pipe clips) to the inlet and outlet
connections.
2. Mark the bore holes.
3. Drill holes for 4 dowels ∅16 mm (depth at least 100 mm).
4. Insert the dowels.
5. Fix the base plates with hexagonal screws and disks.
6. Adjust the wall distance with hexagonal nuts and threaded rods,
if necessary.
4.2.2 Mounting the control cabinet
1. Mark the bore holes
2. Drill holes for 4 dowels ∅10 mm (depth at least 70 mm).
3. Insert the dowels.
4. Screw in the 4 included special screws M 8 x 80.
5. Place the control cabinet and fix it with disks and nuts.
4.2.3 Connecting the gas lines
WARNING
Toxic material
Death or serious personal injury
‐Use seamless-drawn steel pipe only.
‐All connections must be free from mechanical stress.
B
A1 A2
185-1
185-2
A1 A2
B
TM077117
Position of gas connections
Pos. Description
A1 Connection for container battery 1
A2 Connection for container battery 2
B Connection to outlet line
1. Connect the line from the first container battery to connection
(A1).
2. Connect the line from the second container battery to
connection (A2).
3. Connect the outlet line to connection (B).
4.3 Electrical installation
WARNING
Electric shock
Death or serious personal injury
‐Before making any electrical connections, switch off
the power supply and make sure that it cannot be
accidentally switched on.
‐All electrical connections must be carried out by a
qualified electrician in accordance with local
regulations.
‐All electrical connections must be carried out in
accordance with the wiring diagram.
Before connecting the mains cable, make sure that the
voltage and frequency specified on the nameplate
correspond to the local power supply. An incorrect supply
voltage may destroy the device.
Route the input, output and power supply cables in
separate ducts.
8
English (GB)

4.3.1 Setting up the electrical connections
5 6 N9 10
2 N PE 3
1 2 3
P E
L N P E
10
1 2 13 N16 17
6 2 N PE 3 10
22 27
P E
8
P E
15
P E
4711 14
76979
L N P E
P
A B
C D E F
HG
I J
24 25 2618 19 20 21 23
TM077131
Wiring diagram for Aris servomotor
Pos. Description
A Power supply
B Contact manometer
C Failure
18, 19
The contact is open, if the pressure is above the contact manometer setting (normal operation).
The contact closes, if the pressure remains below the contact manometer setting for more than 40 seconds (failure).
The contact is open in case of power failure.
D Battery 2 operation
20, 21 The contact closes if the motor valve for container battery 1 is completely closed.
E Battery 1 operation
22, 23 The contact closes if the motor valve for container battery 2 is completely closed.
F Operation mode
24 Manual control: The contact closes, if the operation mode switch (S3 on the control cabinet) is set to "man".
25 Automatic control: The contact closes, if the operation mode switch (S3 on the control cabinet) is set to "auto".
26 Common
G Control cabinet: terminal block for valve battery 1
H Control cabinet: terminal block for valve battery 2
I Servomotor: terminal block for valve battery 1
J Servomotor: terminal block for valve battery 2
Observe the wiring diagram.
1. Connect the servomotors to the control cabinet.
2. Connect the contact manometer to the control cabinet.
3. Connect the control cabinet to the power supply.
4. Connect the contact output lines, if necessary.
9
English (GB)

5. Startup
WARNING
Toxic material
Death or serious personal injury
‐Startup must be carried out by authorised and trained
experts.
‐Observe the material safety data sheets (SDS) of the
handled chemicals.
‐Wear personal protective equipment when handling
chemicals.
For startup, all components of the entire system must be
ready for operation.
Observe the manuals of the system and all other
components.
5.1 Functional tests before startup
Before startup:
• Check the electrical connections.
• Check the mechanical installation.
• Check the setting of the contact manometer:
Medium Contact manometer setting
Chlorine 2 bar
5.2 Tightness checks before startup
5.2.1 Checking the tightness of the gas dosing system with
nitrogen
WARNING
Toxic material
Death or serious personal injury
‐Wear protective equipment when handling chlorine.
Before checking the tightness, carry out a visual
inspection of all gas-conveying parts and connections.
The 185 change-over unit is a component of a gas dosing system.
See the installation example.
If the gas dosing system is fitted with a nitrogen rinsing device, a
rough tightness check can be carried out with nitrogen. The
nitrogen supply line is connected to the free side of the header line.
1. Open the shut-off valves up to the gas dosing system.
The chlorine gas container valves must remain closed.
2. Open both motor valves of the 185 change-over device.
3. Set the pressure reducing valve of the nitrogen bottle to 2 bar.
4. Open the connection valve of the nitrogen bottle.
5. Slowly open the nitrogen bottle valve, until the contact
manometer of the 185 change-over device shows a pressure of
approx. 2 bar.
The nitrogen test pressure must not exceed 12 bar, otherwise
the rupture disc of the expansion tank may burst.
6. Apply a thin layer of leak detection spray to all pressurised
sealing points of the system components.
7. Shut off the nitrogen rinsing device.
Option Description
Bubbles appear and the
pressure drops.
The pressure line is leaky.
• Depressurise the system.
• Eliminate the leakage.
• Repeat the tightness check.
No bubbles appear and the
pressure does not drop.
The pressure line is tight.
Depressurise the system.
5.2.2 Checking the tightness of the gas dosing system with
ammonia
WARNING
Toxic material
Death or serious personal injury
‐Wear personal protective equipment when handling
chlorine.
‐Avoid contact with escaping gas.
‐Do not inhale test gases or vapours.
WARNING
Toxic material
Death or serious personal injury
‐Clearly label ammonia containers to avoid confusion.
‐Do not inhale ammonia gases.
‐Avoid contact with ammonia.
‐Keep ammonia containers closed before and after
use.
‐Do not pour liquid ammonia over system components,
because this may cause corrosion-induced leakages.
Check the tightness only if the entire system is ready for
use.
Risk of gas leakage.
Always open and close shut-off valves slowly.
Risk of pressure surges and rupture of disc.
After a successful tightness check with nitrogen, the tightness of the
gas dosing system must be checked with ammonia.
1. Open the manual ball valves at the 185 change-over device.
185-2: The ball valves of the bypass line must remain closed.
2. Set operation mode switch (S3) at control cabinet to "man".
3. Open battery 1: Press key (S18) until lamp (H15) lights up.
4. Close battery 2: Press key (S37) until lamp (H42) lights up.
5. Open the container valves of battery 1, until the contact
manometer of the 185 change-over device shows a pressure of
approx. 2 bar. Close the container valves immediately.
10
English (GB)

6. Slowly take the ammonia bottle past the gas-conveying parts.
Also check the flexible tube leading to the manometer.
Do not let liquid ammonia get into contact with any parts of the
system.
TM048811
Option Description
White mist appears or the
pressure drops.
The pressure line is leaky.
• Depressurise the system.
• Eliminate the leakage.
• Repeat the tightness check.
No white mist appears and
the pressure does not drop.
The pressure line is tight.
Close battery 1 and continue
with the tightness check of
battery 2.
7. Close battery 1: Press key (S22) until lamp (H28) lights up.
8. Start the dosing unit of the gas dosing system, until the contact
manometer shows 0 bar.
9. Open battery 2: Press key (S32) until lamp (H29) lights up.
10. Open the container valves of battery 2, until the contact
manometer of the 185 change-over device shows a pressure of
approx. 2 bar. Close the container valves immediately.
11. Slowly take the ammonia bottle past the gas-conveying parts.
Also check the flexible tube leading to the manometer.
Do not let liquid ammonia get into contact with any parts of the
system.
TM048811
Option Description
White mist appears or the
pressure drops.
The pressure line is leaky.
• Depressurise the system.
• Eliminate the leakage.
• Repeat the tightness check.
No white mist appears and
the pressure does not drop.
The pressure line is tight.
Option Description
5.3 Starting up the 185 change-over device
The 185 change-over device is always part of a gas dosing system.
The other components of the system determine the course of
startup.
Before startup:
1. Open the ball valves (2).
For 185-2:
a. Ball valves (3) of the bypass lines must be closed.
b. Ball valve (4) must be open.
2. Set operation mode switch (S3) to "man".
3. Set the change-over device to the container battery which
should be used first:
a. Open battery 1: Press key (S18) until lamp (H15) lights up.
b. Close battery 1: Press key (S22) until lamp (H28) lights up.
c. Open battery 2: Press key (S32) until lamp (H29) lights up.
d. Close battery 2: Press key (S37) until lamp (H42) lights up.
4. Set operation mode switch (S3) to "auto".
Related information
6.1 Control cabinet
6.2 Change-over device
11
English (GB)

6. Operation
6.1 Control cabinet
1
11
12
2
2
2
H15 H28 H29 H42
S18 S22 S32 S37
S3
TM077374
Control cabinet
Pos. Symbol Description
S3
Operation mode switch:
Manual operation: "man"
Off: "0"
Automatic operation: "auto"
H15
1
Green lamp: Lights up when the valve of
container battery 1 is completely opened.
H28
1
Red lamp: Lights up when the valve of
container battery 1 is completely closed.
H29
2
Green lamp: Lights up when the valve of
container battery 2 is completely opened.
H42
2
Red lamp: Lights up when the valve of
container battery 2 is completely closed.
S18
1
Key to open the valve of container battery 1 in
manual operation mode.
S22
1
Key to close the valve of container battery 1 in
manual operation mode.
S32
2
Key to open the valve of container battery 2 in
manual operation mode.
S37
2
Key to close the valve of container battery 2 in
manual operation mode.
6.2 Change-over device
1
22
185-1
185-2
2
6
5
1
6
5
2
33 4
TM077163
Control elements of the 185 change-over device
Pos. Description
1 Contact manometer
2 Manual ball valves of the change-over device
3 Manual ball valves of the bypass lines
4 Manual ball valve of the outlet line
5 Servomotor with ball valve of container battery 1
6 Servomotor with ball valve of container battery 2
6.3 Operation modes
Two operation modes can be selected with the operation mode
switch (S3).
Automatic operation mode
1. Turn switch (S3) to "auto".
Operation starts automatically.
Manual operation mode
1. Turn switch (S3) to "man".
2. Press the respective keys to set the change-over device to the
desired container battery.
The manual operation mode disables the automatic
change-over function.
The manual operation mode must only be used for
startup, maintenance and repairs.
Related information
6.1 Control cabinet
6.2 Change-over device
12
English (GB)

6.4 Emergency operation
6.4.1 Manually operating the 185-1 change-over device with a
damaged servomotor
WARNING
Toxic material
Death or serious personal injury
‐Make sure that the manual ball valve (2) and the ball
valve of the servomotor are not closed simultaneously,
because liquid chlorine can be trapped in the lines
between both valves. If the temperature rises, chlorine
gas could escape.
In this example, the servomotor (5) is damaged.
1. Unscrew the damaged servomotor (5) from the 185-1 change-
over device.
If the ball valve of the servomotor (5) is closed, open it by
turning the coupling in flow direction "open". Turn it by 90° using
pliers.
2. Set the operation mode switch at the control cabinet to "man".
3. Set the intact servomotor (6) to "open".
4. Change over between the container batteries by manually
opening and closing the manual ball valves (2).
Related information
6.2 Change-over device
6.4.2 Manually operating the 185-2 change-over device with a
damaged servomotor
WARNING
Toxic material
Death or serious personal injury
‐Make sure that the manual ball valve (2), the ball valve
of the outlet line (4) and the ball valve of the
servomotor are not closed simultaneously, because
liquid chlorine can be trapped in the lines between
both valves. If the temperature rises, chlorine gas
could escape.
In this example, the servomotor (5) is damaged.
1. Check if the ball valve of the damaged servomotor (5) is open or
closed.
• If the ball valve of the damaged servomotor is closed, the
manual ball valve (2) must be open.
• If the ball valve of the damaged servomotor is open, the
manual ball valve (2) must be closed.
2. Set the servomotor (6) to the same position as servomotor (5).
a. Set the operation mode switch at the control cabinet to
"man".
b. Set the intact servomotor (6) to "closed" or "open".
c. Open or close the respective manual ball valve (2).
3. Change over between the container batteries by manually
opening and closing the manual ball valves (3).
Related information
6.2 Change-over device
7. Fault finding
7.1 Device does not change over
Cause Remedy
No control voltage is present, or
the connection to control
cabinet is interrupted.
• Establish power supply, check
the connection lines.
The ball valves are closed. • Open the ball valves, except
for the manual ball valves of
the bypass line.
The contact manometer is
defective.
• Replace the contact
manometer.
Operation mode switch (S3) is
set to "man".
• Set operation mode switch
(S3) to "auto".
The servomotor is defective. • Replace the servomotor.
The valve is defective. • Replace the valve.
The valve packings are
tightened too much.
• Loosen the packings slightly.
If the stuffing box is leaky,
send it to the manufacturer.
7.2 Lamp does not light up
Cause Remedy
The lamp is defective. • Replace the lamp.
7.3 A fault is signalled at the potential-free output
Cause Remedy
Both container batteries are
empty. • Replace the empty containers
by full ones.
The line coming from the spare
container battery is blocked. • Clean the line.
The ball valves are closed. • Open the ball valves.
7.4 Notes for other faults
If the servomotor of the valve to be closed blocks, the
failure output contact opens after 40 seconds due to low
pressure.
If the servomotor of the valve to be opened blocks and the
valve is still closed, the failure output contact opens after
40 seconds due to low pressure.
If the servomotor of the valve to be opened blocks when
halfway opened and gas pressure is already present, the
output contact of the respective valve remains opened.
Both signal lamps of the respective valve do not light up at
the control cabinet, because signal lamps only light up
when the end positions of the valves are reached.
Related information
2.3 Operating principle
6.2 Change-over device
13
English (GB)

8. Maintenance
WARNING
Toxic material
Death or serious personal injury
‐Cleaning and maintenance must be carried out by
authorised and trained experts.
‐Observe the material safety data sheets (SDS) of the
handled chemicals.
‐Wear personal protective equipment when handling
chemicals.
‐Shut down the whole system before any work at the
system components and lines.
‐The system must be pressureless.
‐Separate the whole system from the power supply
before any work at the system components.
‐Safety installations, which have been disabled during
maintenance, must be enabled again immediately
after maintenance.
‐Tightly close inlet flanges and outlet flanges to prevent
humidity from getting in.
‐Check the tightness of the whole system before
recommissioning.
Observe the manuals of the system and all other
components.
8.1 Maintenance schedule
WARNING
Toxic material
Death or serious personal injury
‐If the ball valves are defective, they must be replaced
immediately for safety reasons.
‐For replacement of the ball valves, send the change-
over device back to the manufacturer.
Clean removed parts thoroughly with warm water
immediately after dismantling.
Before reassembling make sure, that all parts are clean,
dry and undamaged.
• Open and close the ball valves weekly to maintain correct
functioning.
• Check the tightness of the whole system monthly.
• Check the electrical grounding of the whole system according to
local requirements.
8.2 Cleaning
If necessary, clean all product surfaces with a dry and clean cloth.
8.3 Spare parts and maintenance kit
60
1
120
1
11
12
2
2
2
H15 H28 H29 H42
S18 S22 S32 S37
S3
TM077118
185-1 change-over device
Pos. Description Details Product number
1Servomotor 230 V 99426060
Servomotor 115 V 99426653
60 Contact manometer 0-16 bar 96680628
120 Control cabinet 115 V, 50/60 Hz, with cable labelling 99973469
Control cabinet 230 V, 50/60 Hz, with cable labelling 99973468
-
Set of welding-neck counterflanges, including:
2 tongue-flanges, 1 groove flange, screws
and gaskets
DN 25, PN 40 (EN1092-1) 99695646
- Maintenance kit Set of 10 flat gaskets for flanges 96688979
9. Decommissioning
Seal the inlet and outlet connections of the dismantled
system components to avoid ingress of moisture.
For details on decommissioning, see the separate installation and
operating instructions of the Vaccuperm gas dosing system.
14
English (GB)

10. Technical data
WARNING
Toxic material
Death or serious personal injury
‐Observe the values stated in the technical data
section.
10.1 General data
10.1.1 Flow rate and medium
Medium Flow rate
Chlorine up to 200 kg/h (gas)
up to 600 kg/h (liquid)
10.1.2 Connections
Inlets Groove flange DN 25, PN 40 EN1092-1
Outlets Tongue flange DN 25, PN 40 EN1092-1
10.1.3 Pressure and temperature
Max. operating pressure 16 bar
Testing pressure (factory test of the change-over
device) 20 bar
Ambient temperature (operation, transport and
storage) 0 to +40 °C
10.1.4 Materials
Pipe Low-carbon steel
Valve Steel, stainless steel, PTFE
Manometer Low-carbon steel, silver
Gasket IT, asbestos-free
10.1.5 Weight
Model Weight
185-1 20 kg
185-2 30 kg
10.2 Electrical data
10.2.1 Valves and control cabinet
Control cabinet
variants
230 V, 50/60 Hz
115 V, 50/60 Hz
Motor valve variants 230 V, 50/60 Hz
115 V, 50/60 Hz
Power consumption ~100 W
10.2.2 Servomotors of the motor valves
Construction Part-turn actuator
Driving torque 25 Nm
Actuating time 15 s at 50 Hz
12 s at 60 Hz
Actuating angle 90 °
Enclosure class IP65
Insulation class B
Nominal current
230 V:
• 0.08 A at 50 Hz
• 0.09 A at 60 Hz
115 V:
• 0.16 A at 50 Hz
• 0.18 A at 60 Hz
Power consumption 12 VA
10.2.3 Control cabinet
Enclosure class IP54
Weight 8 kg
Contact outputs
Potential-free contact outputs for:
• Error message
• Motor valve of container battery 1 open
• Motor valve of container battery 2 open
• Indication for manual mode
• Indication for automatic mode
Max. load:
• 250 VAC: 7 A
• 220 VDC: 0.1 A
• 30 VDC: 7 A
15
English (GB)

10.3 Dimensions
10.3.1 185-1 change-over device
E
G
H
A
CB
F
TM077120
185-1 change-over device without bypass
A B C E F G H
[mm] [mm] [mm] [mm] [mm] [mm] [mm]
867 160 383.5 275 124 180 100
10.3.2 185-2 change-over device
A
C
CB
B
D
F E
G
H
TM077121
185-2 change-over device with bypass
A B C D E F G H
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm]
1170 110 475 323 493 396 180 100
10.3.3 Control cabinet
D
C
B
A
ØE
I
H
G
F
TM077122
Control cabinet
A B C D ∅E F G H I
[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm]
300 227 400 445 9 37 420 230 200
11. Disposing of the product
This product or parts of it must be disposed of in an environmentally
sound way.
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company or
service workshop.
The crossed-out wheelie bin symbol on a product
means that it must be disposed of separately from
household waste. When a product marked with this
symbol reaches its end of life, take it to a collection
point designated by the local waste disposal
authorities. The separate collection and recycling of
such products will help protect the environment and
human health.
See also end-of-life information at www.grundfos.com/product-
recycling.
16
English (GB)

Declaration of conformity
GB: EU declaration of conformity
We, Grundfos, declare under our sole responsibility that the product
Change-over device 185, to which the declaration below relates, is
in conformity with the Council Directives listed below on the
approximation of the laws of the EU member states.
DE: EU-Konformitätserklärung
Wir, Grundfos, erklären in alleiniger Verantwortung, dass das
Produkt Change-over device 185, auf das sich diese Erklärung
bezieht, mit den folgenden Richtlinien des Rates zur Angleichung
der Rechtsvorschriften der EU-Mitgliedsstaaten übereinstimmt.
ES: Declaración de conformidad de la UE
Grundfos declara, bajo su exclusiva responsabilidad, que el
producto Change-over device 185 al que hace referencia la
siguiente declaración cumple lo establecido por las siguientes
Directivas del Consejo sobre la aproximación de las legislaciones
de los Estados miembros de la UE.
FR: Déclaration de conformité UE
Nous, Grundfos, déclarons sous notre seule responsabilité, que le
produit Change-over device 185, auquel se réfère cette déclaration,
est conforme aux Directives du Conseil concernant le
rapprochement des législations des États membres UE relatives
aux normes énoncées ci-dessous.
• Machinery Directive (2006/42/EC).
Standard used:
DIN EN ISO 12100:2011-03.
• EMC Directive (2014/30/EU).
Standards used:
EN 61000-3-2:2015
EN 61000-3-3:2014
EN 61326-1:2013.
• Low Voltage Directive (2014/35/EU)
Standard used:
EN 61010-1:2011-07.
• RoHS Directives (2011/65/EU and 2015/863/EU).
Standard used:
EN IEC 63000:2018.
This EU declaration of conformity is only valid when published as part of the Grundfos installation and operating instructions (publication
number 96681317).
Pfinztal, 15 January 2021
Werner Baumann
Lead Product Development Engineer
GRUNDFOS Water Treatment GmbH
Reetzstrasse 85
76327 Pfinztal, Germany
Person authorised to compile technical file and empowered to sign the EU declaration of conformity.
17
Declaration of conformity

Declaration of conformity
UK declaration of conformity
We, Grundfos, declare under our sole responsibility that the
products to which the declaration below relates, are in conformity
with UK regulations, standards and specifications to which
conformity is declared, as listed below:
Valid for Grundfos products:
Change-over device 185
• Machinery Directive (2006/42/EC).
Standard used:
DIN EN ISO 12100:2011-03.
• EMC Directive (2014/30/EU).
Standards used:
EN 61000-3-2:2015
EN 61000-3-3:2014
EN 61326-1:2013.
• Low Voltage Directive (2014/35/EU)
Standard used:
EN 61010-1:2011-07.
• RoHS Directives (2011/65/EU and 2015/863/EU).
Standard used:
EN IEC 63000:2018.
This UK declaration of conformity is only valid when accompanying Grundfos instructions.
Optional element if chosen to fulfil the importer marking requirement:
UK Importer: Grundfos Pumps ltd. Grovebury Road, Leighton Buzzard, LU7 4TL.
Pfinztal, 15 January 2021
Werner Baumann
Lead Product Development Engineer
GRUNDFOS Water Treatment GmbH
Reetzstrasse 85
76327 Pfinztal, Germany
Manufacturer and person empowered to sign the UK declaration of conformity.
10000107534
18
Declaration of conformity

Argentina
Bombas GRUNDFOS de Argentina S.A.
Ruta Panamericana km. 37.500industin
1619 - Garín Pcia. de B.A.
Tel.: [phone]
Fax: [phone]
Australia
GRUNDFOS Pumps Pty. Ltd.
P.O. Box 2040
Regency Park
South Australia 5942
Tel.: [phone]
Fax: [phone]
Austria
GRUNDFOS Pumpen Vertrieb Ges.m.b.H.
Grundfosstraße 2
A-5082 Grödig/Salzburg
Tel.: [phone]
Fax: [phone]
Belgium
N.V. GRUNDFOS Bellux S.A.
Boomsesteenweg 81-83
B-2630 Aartselaar
Tel.: [phone]
Fax: [phone]
Belarus
Представительство ГРУНДФОС в Минске
220125, Минск
ул. Шафарнянская, 11, оф. 56, БЦ «Порт»
Тел.: [phone]
[phone]
Факс: [phone]
E-mail: [email protected]
Bosnia and Herzegovina
GRUNDFOS Sarajevo
Zmaja od Bosne 7-7A
BiH-71000 Sarajevo
Tel.: [phone]
Fax: [phone]
www.ba.grundfos.com
E-mail: [email protected]
Brazil
BOMBAS GRUNDFOS DO BRASIL
Av. Humberto de Alencar Castelo Branco,
630
CEP 09850 - 300
São Bernardo do Campo - SP
Tel.: [phone]
Fax: [phone]
Bulgaria
Grundfos Bulgaria EOOD
Slatina District
Iztochna Tangenta street no. 100
BG - 1592 Sofia
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Canada
GRUNDFOS Canada inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Tel.: [phone]
Fax: [phone]
China
GRUNDFOS Pumps (Shanghai) Co. Ltd.
10F The Hub, No. 33 Suhong Road
Minhang District
Shanghai 201106 PRC
Tel.: [phone]
Fax: [phone]
China Grundfos Alldos
Grundfos Alldos
Dosing & Disinfection
ALLDOS (Shanghai) Water Technology Co.
Ltd.
West Unit, 1 Floor, No. 2 Building (T 4-2)
278 Jinhu Road, Jin Qiao Export
Processing Zone
Pudong New Area
Shanghai, 201206
Phone: [phone]
Telefax: [phone]
E-mail: [email protected]
Columbia
GRUNDFOS Colombia S.A.S.
Km 1.5 vía Siberia-Cota Conj. Potrero
Chico,
Parque Empresarial Arcos de Cota Bod. 1A.
Cota, Cundinamarca
Tel.: [phone]
Fax: [phone]
Croatia
GRUNDFOS CROATIA d.o.o.
Buzinski prilaz 38, Buzin
HR-10010 Zagreb
Tel.: [phone]
Fax: [phone]
www.hr.grundfos.com
Czech Republic
GRUNDFOS Sales Czechia and Slovakia
s.r.o.
Čajkovského 21
779 00 Olomouc
Tel.: [phone]
Denmark
GRUNDFOS DK A/S
Martin Bachs Vej 3
DK-8850 Bjerringbro
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
www.grundfos.com/DK
Estonia
GRUNDFOS Pumps Eesti OÜ
Peterburi tee 92G
11415 Tallinn
Tel.: + 372 606 1690
Fax: + 372 606 1691
Finland
OY GRUNDFOS Pumput AB
Trukkikuja 1
FI-01360 Vantaa
Tel.: [phone]
France
Pompes GRUNDFOS Distribution S.A.
Parc d’Activités de Chesnes
57, rue de Malacombe
F-38290 St. Quentin Fallavier (Lyon)
Tel.: [phone]
Fax: [phone]
Germany
GRUNDFOS GMBH
Schlüterstr. 33
40699 Erkrath
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Service in Deutschland:
[email protected]
Germany Grundfos Alldos
GRUNDFOS Water Treatment GmbH
Reetzstraße 85
D-76327 Pfinztal (Söllingen)
Phone: [phone]
Telefax: [phone]
E-mail: [email protected]
Greece
GRUNDFOS Hellas A.E.B.E.
20th km. Athinon-Markopoulou Av.
P.O. Box 71
GR-19002 Peania
Tel.: [phone]
Fax: [phone]
Hong Kong
GRUNDFOS Pumps (Hong Kong) Ltd.
Unit 1, Ground floor, Siu Wai industrial
Centre
29-33 Wing Hong Street & 68 King Lam
Street, Cheung Sha Wan
Kowloon
Tel.: [phone]
Fax: [phone]
Hungary
GRUNDFOS Hungária Kft.
Tópark u. 8
H-2045 Törökbálint
Tel.: [phone]
Fax: [phone]
india
GRUNDFOS Pumps india Private Limited
118 Old Mahabalipuram Road
Thoraipakkam
Chennai 600 097
Tel.: [phone]
indonesia
PT GRUNDFOS Pompa
Graha intirub Lt. 2 & 3
Jln. Cililitan Besar No.454. Makasar,
Jakarta Timur
ID-Jakarta 13650
Tel.: [phone]
Fax: [phone]
Ireland
GRUNDFOS (Ireland) Ltd.
Unit A, Merrywell Business Park
Ballymount Road Lower
Dublin 12
Tel.: [phone]
Fax: [phone]
Italy
GRUNDFOS Pompe Italia S.r.l.
Via Gran Sasso 4
I-20060 Truccazzano (Milano)
Tel.: [phone]
Fax: [phone]
Japan
GRUNDFOS Pumps K.K.
1-2-3, Shin-Miyakoda, Kita-ku
Hamamatsu
431-2103 Japan
Tel.: [phone]
Fax: [phone]
Korea
GRUNDFOS Pumps Korea Ltd.
6th Floor, Aju Building 679-5
Yeoksam-dong, Kangnam-ku, 135-916
Seoul, Korea
Tel.: [phone]
Fax: [phone]
Latvia
SIA GRUNDFOS Pumps Latvia
Deglava biznesa centrs
Augusta Deglava ielā 60
LV-1035, Rīga,
Tel.: + 371 714 9640, 7 149 641
Fax: + 371 914 9646
Lithuania
GRUNDFOS Pumps UAB
Smolensko g. 6
LT-03201 Vilnius
Tel.: + 370 52 395 430
Fax: + 370 52 395 431
Malaysia
GRUNDFOS Pumps Sdn. Bhd.
7 Jalan Peguam U1/25
Glenmarie industrial Park
40150 Shah Alam, Selangor
Tel.: [phone]
Fax: [phone]
Mexico
Bombas GRUNDFOS de México
S.A. de C.V.
Boulevard TLC No. 15
Parque industrial Stiva Aeropuerto
Apodaca, N.L. 66600
Tel.: [phone]
Fax: [phone]
Netherlands
GRUNDFOS Netherlands
Veluwezoom 35
1326 AE Almere
Postbus 22015
1302 CA ALMERE
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
New Zealand
GRUNDFOS Pumps NZ Ltd.
17 Beatrice Tinsley Crescent
North Harbour Industrial Estate
Albany, Auckland
Tel.: [phone]
Fax: [phone]
Norway
GRUNDFOS Pumper A/S
Strømsveien 344
Postboks 235, Leirdal
N-1011 Oslo
Tel.: [phone]
Fax: [phone]
Poland
GRUNDFOS Pompy Sp. z o.o.
ul. Klonowa 23
Baranowo k. Poznania
PL-62-081 Przeźmierowo
Tel.: [phone]
Fax: [phone]
Portugal
Bombas GRUNDFOS Portugal, S.A.
Rua Calvet de Magalhães, 241
Apartado 1079
P-2770-153 Paço de Arcos
Tel.: [phone]
Fax: [phone]
Romania
GRUNDFOS Pompe România SRL
S-PARK BUSINESS CENTER, Clădirea
A2, etaj 2
Str. Tipografilor, Nr. 11-15, Sector 1, Cod
013714
Bucuresti, Romania
Tel.: [phone]
E-mail: [email protected]
Russia
ООО Грундфос Россия
ул. Школьная, 39-41
Москва, RU-109544, Russia
Тел. [phone] [phone]
Факс [phone]
E-mail [email protected]
Serbia
Grundfos Srbija d.o.o.
Omladinskih brigada 90b
11070 Novi Beograd
Tel.: [phone]
Fax: [phone]
www.rs.grundfos.com
Singapore
GRUNDFOS (Singapore) Pte. Ltd.
25 Jalan Tukang
Singapore 619264
Tel.: [phone]
Faxax: [phone]
Slovakia
GRUNDFOS s.r.o.
Prievozská 4D 821 09 BRATISLAVA
Tel.: [phone]
sk.grundfos.com
Slovenia
GRUNDFOS LJUBLJANA, d.o.o.
Leskoškova 9e, 1122 Ljubljana
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
South Africa
GRUNDFOS (PTY) LTD
16 Lascelles Drive, Meadowbrook Estate
1609 Germiston, Johannesburg
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Spain
Bombas GRUNDFOS España S.A.
Camino de la Fuentecilla, s/n
E-28110 Algete (Madrid)
Tel.: [phone]
Fax: [phone]
Sweden
GRUNDFOS AB
Box 333 (Lunnagårdsgatan 6)
431 24 Mölndal
Tel.: [phone]
Fax: [phone]
Switzerland
GRUNDFOS Pumpen AG
Bruggacherstrasse 10
CH-8117 Fällanden/ZH
Tel.: [phone]
Fax: [phone]
Taiwan
GRUNDFOS Pumps (Taiwan) Ltd.
7 Floor, 219 Min-Chuan Road
Taichung, Taiwan, R.O.C.
Tel.: [phone]
Fax: [phone]
Thailand
GRUNDFOS (Thailand) Ltd.
92 Chaloem Phrakiat Rama 9 Road
Dokmai, Pravej, Bangkok 10250
Tel.: [phone]
Fax: [phone]
Turkey
GRUNDFOS POMPA San. ve Tic. Ltd. Sti.
Gebze Organize Sanayi Bölgesi
Ihsan dede Caddesi
2. yol 200. Sokak No. 204
41490 Gebze/ Kocaeli
Tel.: +90 - 262-679 7979
Fax: +90 - 262-679 7905
E-mail: [email protected]
Ukraine
Бізнес Центр Європа
Столичне шосе, 103
м. Київ, 03131, Україна
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
United Arab Emirates
GRUNDFOS Gulf Distribution
P.O. Box 16768
Jebel Ali Free Zone, Dubai
Tel.: [phone]
Fax: [phone]
United Kingdom
GRUNDFOS Pumps Ltd.
Grovebury Road
Leighton Buzzard/Beds. LU7 4TL
Tel.: [phone]
Fax: [phone]
U.S.A.
GRUNDFOS Water Utility Head Quarters
Brookshire, Texas 77423 USA
Uzbekistan
Grundfos Tashkent, Uzbekistan
The Representative Office of Grundfos
Kazakhstan in Uzbekistan
38a, Oybek street, Tashkent
Tel.: [phone]
Fax: [phone]
Grundfos companies

Revision Info
Last revised on 14.01.2019
Grundfos companies