AFRISO WMS-WP6 User manual

0036
Version: 07.2017.0
ID: 900.000.0384
Lindenstraße 20
74363 Güglingen
Telefon[phone]
Service+49 7135-102-211
Telefax [phone]
[email protected]
www.afriso.com
Copyright 2017 AFRISO-EURO-INDEX GmbH.All rights reserved.
Operating instruc-
tions
Boiler water low level alarm
WMS-WP6 - mechanical

2
About these operating instructions
EN
WMS-WP6
1 About these operating instructions
These operating instructions describe the boiler water low level alarm "WMS-
WP6" (also referred to as "product" in these operating instructions). These
operating instructions are part of the product.
• You may only use the product if you have fully read and understood these
operating instructions.
• Verify that these operating instructions are always accessible for any type
of work performed on or with the product.
• Pass these operating instructions as well as all other product-related doc-
uments on to all owners of the product.
• If you feel that these operating instructions contain errors, inconsisten-
cies, ambiguities or other issues, contact the manufacturer prior to using
the product.
There operating instructions are protected by copyright and may only be
used as provided for by the corresponding copyright legislation. We reserve
the right to modifications.
The manufacturer shall not be liable in any form whatsoever for direct or con-
sequential damage resulting from failure to observe these operating instruc-
tions or from failure to comply with directives, regulations and standards and
any other statutory requirements applicable at the installation site of the prod-
uct.

3
Information on safety
EN
WMS-WP6
2 Information on safety
2.1 Safety messages and hazard categories
These operating instructions contain safety messages to alert you to poten-
tial hazards and risks. In addition to the instructions provided in these oper-
ating instructions, you must comply with all directives, standards and safety
regulations applicable at the installation site of the product. Verify that you are
familiar with all directives, standards and safety regulations and ensure com-
pliance with them prior to using the product.
Safety messages in these operating instructions are highlighted with warning
symbols and warning words. Depending on the severity of a hazard, the
safety messages are classified according to different hazard categories.
In addition, the following symbols are used in these operating instructions:
DANGER
DANGER indicates a hazardous situation, which, if not avoided, will
result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation, which, if not avoided,
can result in serious injury or equipment damage.
NOTICE
NOTICE indicates a hazardous situation, which, if not avoided, can
result in equipment damage.
This is the general safety alert symbol. It alerts to injury haz-
ards or equipment damage. Comply with all safety instruc-
tions in conjunction with this symbol to help avoid possible
death, injury or equipment damage.
This symbol alerts to hazardous electrical voltage. If this
symbol is used in a safety message, there is a hazard of
electric shock.

4
Information on safety
EN
WMS-WP6
2.2 Intended use
This product may only be used to secure boilers at heating systems (as per
EN 12828) with flow temperatures of up to 120 °C by signalling a low water
condition.
Any use other than the application explicitly permitted in these operating
instructions is not permitted and causes hazards.
Verify that the product is suitable for the application planned by you prior to
using the product. In doing so, take into account at least the following:
• All directives, standards and safety regulations applicable at the installa-
tion site of the product
• All conditions and data specified for the product
• The conditions of the planned application
In addition, perform a risk assessment in view of the planned application,
according to an approved risk assessment method, and implement the
appropriate safety measures, based on the results of the risk assessment.
Take into account the consequences of installing or integrating the product
into a system or a plant.
When using the product, perform all work and all other activities in conjunc-
tion with the product in compliance with the conditions specified in the oper-
ating instructions and on the nameplate, as well as with all directives, stand-
ards and safety regulations applicable at the installation site of the product.

5
Information on safety
EN
WMS-WP6
2.3 Predictable incorrect application
The product must never be used in the following cases and for the following
purposes:
• Use in heating systems with flow temperatures higher than 120 °C
• Use in high-pressure steam boilers and high-pressure hot water genera-
tors
2.4 Qualification of personnel
Only appropriately trained persons who are familiar with and understand the
contents of these operating instructions and all other pertinent product doc-
umentation are authorized to work on and with this product.
These persons must have sufficient technical training, knowledge and expe-
rience and be able to foresee and detect potential hazards that may be
caused by using the product
All persons working on and with the product must be fully familiar with all
directives, standards and safety regulations that must be observed for per-
forming such work.
2.5 Personal protective equipment.
Always wear the required personal protective equipment. When performing
work on and with the product, take into account that hazards may be present
at the installation site which do not directly result from the product itself.
2.6 Modifications to the product
Only perform work on and with the product which is explicitly described in
these operating instructions. Do not make any modifications to the product
which are not described in these operating instructions.

6
Transport and storage
EN
WMS-WP6
3 Transport and storage
The product may be damaged as a result of improper transport or storage.
NOTICE
DAMAGE TO THE PRODUCT
• Verify compliance with the specified ambient conditions during transport or
storage of the product.
• Use the original packaging when transporting the product.
• Store the product in a clean and dry environment.
• Verify that the product is protected against shocks and impact during trans-
port and storage.
Failure to follow these instructions can result in equipment damage.

7
Product description
EN
WMS-WP6
4 Product description
4.1 Overview
A. Test button
B. Cover
C. Nameplate
D. Unlock pushbutton
E. Vent screw
F. Welding socket
G. Switch off level (88 mm)
H. Float
I. Housing
J. Welding socket
K. Sludge removal opening
Fig. 1: WMS-WP6
A
E
D
C
B
I
G
H
J
K
F

8
Product description
EN
WMS-WP6
A. Cover
B. Test button
C. Switch
D. Unlock pushbutton
E. Screw connection with venting
F. Protective pipe
G. Float
H. Connection cable
Fig. 2: WMS-WP6 with short protective pipe
A
E
D
C
B
F
G
H

9
Product description
EN
WMS-WP6
4.2 Dimensions and connections
Fig. 3: WMS-WP6
335 mm
257.5 mm 77.5 mm
195 mm
54 mm
26.5 mm
20 mm
*
23 mm
112 mm
43 mm
PP
PP

10
Product description
EN
WMS-WP6
Fig. 4: WMS-WP6 with short protective pipe
83.5 mm
Approx.
10.5 mm
155 mm
R 2
Ø 56 mm
271 mm
36 mm

11
Product description
EN
WMS-WP6
4.3 Application example(s)
A. Flow
B. Return
Fig. 5: WMS-WP6
Fig. 6: WMS-WP6 with short protective pipe
A B

12
Product description
EN
WMS-WP6
4.4 Function
The product is a mechanical boiler water low level alarm with a float system
for sealed heating systems to protect the boiler. If the water level in the boiler
drops below a minimum level, a float activates a switch. This switch interrupts
the power supply to the boiler. A locking mechanism keeps the burner from
restarting automatically. The test button allows the float to be lowered to sim-
ulate a low water alarm condition.
A product version without unlocking mechanism is available for unlocking and
resetting directly from the control cabinet.
As per EN 12828, systems with more than 300 kW must be equipped with
water level limiters. However, the installation of such units is recommended
for all systems, in particular for roof heating centres.
The product is suitable for continuous operation.
4.5 Approvals, conformities, certifications
The product complies with:
• EMC Directive (2014/30/EU)
• Low Voltage Directive (2014/35/EU)
• Pressure Equipment Directive (2014/68/EU)
• RoHS Directive (2011/65/EU)
Approvals WMS-WP6 and WMS-WP6 with short protective pipe:
• Type approval mark TÜV.WBH.15-232

13
Product description
EN
WMS-WP6
4.6 Technical specifications
Parameter Value
WMS-WP6
Value
WMS-WP6 with short
protective pipe
General specifications
Height 358 mm 271 mm
Housing material Brass Brass
Protective pipe material - Brass
Float material Plastic Plastic
Connections Welding socket DN 20 R2
Operating pressure Max. 10 bar Max. 10 bar
Test pressure 15 bar 15 bar
Electrical switch rating 6(2) A, AC 250 V 6(2) A, AC 250 V
External fusing 6 A at resistive load,
2 A at inductive load 6 A at resistive load, 2 A at inductive load
Principle of operation Corresponds to RS
type 1 B
(EN 60730-1)
Corresponds to RS
type 1 B
(EN 60730-1)
Operating temperature range / medium
Ambient Max. +120 °C Max. +120 °C
Medium Max. +120 °C / heating
circuit water as per VDI
2035 with max. 50 % of
glycol
Max. +120 °C / heating
circuit water as per VDI
2035 with max. 50 % of
glycol
Electrical safety
Protection class I (EN 60730) I (EN 60730)
Degree of protection IP 54 (EN 60529) IP 54 (EN 60529)

14
Mounting
EN
WMS-WP6
5 Mounting
5.1 Preparing mounting
DVerify that the pump does not influence the position of the float in the prod-
uct (for example, strong flow or suction effects).
DVerify that no shut-off fitting is mounted to the product.
DVerify that the probe body is removed before welding work is performed.
WARNING
BURNS CAUSED BY HOT LIQUID
Water in heating systems is under high pressure and can have temperatures of
more than 100 °C.
• Verify that you have drained the heating water or allow it to cool down before
opening the product.
Failure to follow these instructions can result in death, serious injury or
equipment damage.
NOTICE
DAMAGE TO THE PRODUCT
Excessive water temperature or excessive water pressure can destroy the prod-
uct.
• Verify that the maximum permissible water temperature is not exceeded.
• Verify that the maximum permissible water pressure is not exceeded.
Failure to follow these instructions can result in equipment damage.

15
Mounting
EN
WMS-WP6
5.2 Mounting the product
1. Mount the product vertically.
2. Before performing welding work, remove the welding sockets from the
probe.
3. Install the product in parallel with a vertical section of the flow line.
4. Install the product in the boiler circuit upstream of the mixer.
- The switch-off level of the product must be at least 100 mm above the
highest heated surface of the heat generator.
5.3 Electrical connection
DANGER
ELECTRIC SHOCK
• Verify that the degree of protection against electric shock (protection class,
double insulation) is not reduced by the type of electrical installation.
• Verify that the cover is not exposed to water.
Failure to follow these instructions will result in death or serious injury.
DANGER
ELECTRIC SHOCK CAUSED BY LIVE PARTS
• Disconnect the mains voltage supply before performing the work and ensure
that it cannot be switched on.
• Verify that no hazards can be caused by electrically conductive objects or
media.
Failure to follow these instructions will result in death or serious injury.

16
Mounting
EN
WMS-WP6
5.3.1 Product with locking
The product contains a changeover contact. In the case of a low water
alarm condition, the contact (connected in series with the burner) opens.
The previously open contact closes so that an alarm horn can be acti-
vated.
1. Connect the 4-wire connection cable (1.9 m long) and the connection
line to the burner in a moisture-proof junction box.
A. AC 230 V, horn
B. Blue
C. Product with locking
D. Changeover contact
E. Unlocking
F. Burner
G. Junction box
H. Green yellow, protective earth
conductor
I. Black
J. Brown
J
B
I
E
A
H
C
D
F
G

17
Mounting
EN
WMS-WP6
5.3.2 Product without locking
1. Connect the locking unit provided on site according to the figure.
A. Product without locking
B. On/off
C. Problem
D. Burner
E. Burner contactor
F. Unlocking
G. Locking to be provided by cus-
tomer
H. Brown
I. Black
J. Blue
K. Green yellow, protective earth
conductor
J
K
F
H
B
E
G
A
IC
D

18
Commissioning
EN
WMS-WP6
6 Commissioning
6.1 Commissioning the product
1. Press the "Unlock" pushbutton after you have filled and vented the unit.
- The system is on.
6.2 Function test
The water level does not need to be lowered to test the device.
1. Press the test button.
- The burner switches off.
2. Switch on the product by pressing the unlock pushbutton.

19
Maintenance
EN
WMS-WP6
7 Maintenance
7.1 Maintenance intervals
When Activity
At regular intervals Perform the function test at least once per year.

20
Troubleshooting
EN
WMS-WP6
8 Troubleshooting
Any malfunctions that cannot be removed by means of the measures
described in this chapter may only be repaired by the manufacturer.
Problem Possible reason Repair
Mains connection cable
defective - Mains cable must be replaced by the manu-
facturer with a specific
mains cable (tempera-
ture resistance 150 °C).
Other malfunctions - Contact the AFRISO
service hotline