WIKORA WKS 155 Technical Document

© Wikora GmbH Page 1 As of 8/25/2015
Errors excepted.
WIKORA GmbH
Friedrichstr. 9
89568 Hermaringen
Phone: [phone]
Fax: [phone]
email: [e-mail]
Installation manual
Operating instructions
Chilled water buffer tank
WKS 155 –3005
Installation and commissioning must be
undertaken by a specialist.
General terms and conditions of warranty state that
all installations must be carried out by a suitably
trained and qualified plumber who observes the
local norms and regulations.
The installation and maintenance record must be
entirely completed and the user has to be
instructed accordingly.
Efficient operation can only be guaranteed if the
instructions of this manual are followed.
Warranty does not cover any damage caused due
to non-observance of this manual and the technical
rules in force.
The system is to be checked annually by a
specialized company. In addition, occurring defects
must be repaired immediately.
This document should be handed over to the
client on completion of the installation.
.
Index
1 General............................................................................................................................................................................. 2
2 Transport and installation .................................................................................................................................................. 2
3 Dimensions and connections............................................................................................................................................. 3
4 Technical data...................................................................................................................................................................4
5 Installation.........................................................................................................................................................................4
6 Commissioning..................................................................................................................................................................4
7 Maintenance and wear parts.............................................................................................................................................. 4
8 Recycling and disposal......................................................................................................................................................4
9 Warranties and guarantee.................................................................................................................................................5
10 Installation record .............................................................................................................................................................6

© Wikora GmbH Page 2 As of 8/25/2015
Errors excepted.
1 General
Depending on the type and design, WIKORA tanks are suitable for water storage. The maximum working pressure and working
temperature can be found in the technical data.
Set-up, installation and commissioning must be undertaken by a qualified specialist, who must observe these instructions.
The site of installation must be frost-protected according to DIN 4753.
When setting-up and installing the tank, the following regulations should be considered:
In addition to the technical rules in force DIN 1988, DIN 18160, DIN 4753, DIN 4109, DIN 4708, DIN 4751 section 2-4 energy
conservation law and VDE regulations are to be observed. Moreover, the relevant regulations of the suppliers as well as legal
building regulations are to be considered.
2 Transport and installation
In order to prevent damage during transport, the packaging should only be removed at the site of installation. During shipment,
it should be ensured that the tank does not come in contact with any spiky or sharp items, nor is damaged through dropping or
knocks.
During installation, the tank must be disconnected from any humidity carrying components. Moreover, sufficient space for
maintenance and cleaning purposes should be kept free in front of, beside, above and behind the tank.
The pre-assembled PS-jacket can be dismantled for installation. Damages which have been caused in the thermal insulation
during installation must be professionally repaired.
The PS-jacket including rosettes are to be placed at the site of installation before installing the pipeworks.

© Wikora GmbH Page 3 As of 8/25/2015
Errors excepted.
3 Dimensions and connections
Chilled water buffer tank on base ring, interior not coated, exterior primer-painted for thermal insulation, 25 mm thermal
insulation and PS-jacket in RAL 9220, pre-assembled with rosettes and cap.
Manufactured in compliance with AD 2000 regulations and company standards, manufacturer’s certificate for construction and
pressure testing.
llustration 1
Dimensions:
Type
d
D
H
W
K
L
X1
X2
X3
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
WKS 155
500
552
884
915
656
233
618
467
265
WKS 205
500
552
1128
1120
900
233
862
564
265
WKS 305
500
552
1641
1665
1413
233
1372
819
265
WKS 405
600
652
1635
1660
1395
265
1370
985
300
WKS 505
600
652
1895
1900
1655
265
1640
970
300
WKS 805
790
842
1802
1845
1520
290
1490
903
316
WKS 1005
790
842
2117
2150
1835
290
1805
1061
316
WKS 1505
1000
1052
2074
2130
1730
350
1680
1040
400
WKS 2005
1200
1252
2013
2100
1625
395
1575
1010
445
WKS 3005
1250
1302
2603
2680
2220
390
2170
1305
440
Chart 1
W = Tilting dimension; d = WKS excl. insulatione, D = WKS incl. insulation
Connections:
Type
WKS
155
WKS
205
WKS
305
WKS
405
WKS
505
WKS
805
WKS
1005
WKS
1505
WKS
2005
WKS
3005
Load flow / return
8/9
Gi
1 1/2
1 1/2
2
2 1/2
2 1/2
3
3
3
3
3
Vent
13
Gi
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
Sensor socket
15
Gi
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
Drain
(5)
Gi
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
1 1/4
Chart 2
Gi = female thread

© Wikora GmbH Page 4 As of 8/25/2015
Errors excepted.
4 Technical data
Description
WKS
155
WKS
205
WKS
305
WKS
405
WKS
505
WKS
805
WKS
1005
WKS
1505
WKS
2005
WKS
3005
Storage volume (real) acc.
to DIN EN 12897
[litre]
153
201
300
431
500
830
983
1535
2010
3035
Max. working temperature
[°C]
50
50
50
50
50
50
50
50
50
50
Min. working temperature
[°C]
2
2
2
2
2
2
2
2
2
2
Max. working pressure
[bar]
10
10
10
10
10
10
10
6
6
6
Max. rel. humidity
[%]
70
70
70
70
70
70
70
70
70
70
Max. env. temperature
[°C]
24
24
24
24
24
24
24
24
24
24
Weight (empty)
[kg]
95
100
103
122
151
206
234
273
359
431
Chart 3
5 Installation
All pipes connecting to the tank should have removable connections (fitting/flange). Pipe thread seals with teflon are to
be avoided.
All tank connecting pipes are to be planned, constructed and tested according to the technical rules in force, as well as to the
corresponding norms and regulations in accordance with their application and supply medium.
Sensors and thermostats necessary for temperature control must be securely and permanently positioned on the tank
(immersion sleeve and sensor rail).
The tank’s venting and draining facilities must have the appropriate dimensions and be correctly installed.
The installation company is responsible for the correct execution of work and for the safe and careful insulation of the pipes.
All factory-made, non-insulated surfaces must be insulated in a professional manner on site.
6 Commissioning
Before putting into operation, the entire system should be flushed through. Particles in the system compromise the
operating reliability.
Fill the heating system slowly with water and vent all the air.
Start-up the system.
Before the handover of the system to the end user/owner, the plumbing contractor should ensure that the
system is tested to full load, controls are set and that pipe work and connections are without leaks. Afterwards,
the end user has to be instructed in the operation and handling of the tank, as well as the system. The instruction
must to be documented in the installation and maintenance record.
Please note that the operation and lifetime of the system depend decisively on a regular maintenance.
7 Maintenance and wear parts
Regular maintenance increases the lifetime and operation reliability of the system.
A damp cloth is sufficient to clean the outer parts. Please avoid using any abrasive or solvent cleaning.
8 Recycling and disposal
The products are specified and manufactured according to VDI 2243. The products are mechanically separable and 100%
recyclable. Make sure that the components are disposed according to the relevant regulations.

© Wikora GmbH Page 5 As of 8/25/2015
Errors excepted.
9 Warranties and guarantee
The warranty for our products is based on the legal provisions of the general Civil Code and the Consumer Protection Act.
In addition, defective appliances are replaced within the framework of our full warranty within 1 year, as of the date of the
invoice, including the replacement, procurement and incidental costs. As far as our hot-water heaters and pressurized boilers
are concerned, the warranty amounts for 6 months, as of the date of the invoice.
Subsequent to the full warranty, defective tanks are replaced within the framework of our guarantee. The guarantee of the
different products and the conditions are shown in the table below.
All other claims are excluded. Repairs and costs which occur due to damage, inappropriate installation, chemical,
electrochemical or electrical influences, incorrect operation or improper manipulation, are excluded. Furthermore, the warranty
becomes invalid if th eappliance has been modified through the installation of externally supplied parts or through irregular
professional maintenance.
Subject to our general terms and conditions.
Legal
warranty
2 years
Guarantee
years*
Conditions
WBO T/ToF ●5 20 / 27
WBL ●5 20 / 27
WBO Uno ●5 20 / 27
WBO Duo ●5 20 / 27
WP/Sol ●5 20 / 27
WBO H ●5 20 / 27
GS ●5 20 / 27
Wikosol Twin ●10 27
Wikosol ●10 27
WPKR H Twin ●5 20 / 27
WPKR Twin ●5 20 / 27
WPKR ●5 20 / 27
WPK ●5 20 / 27
WPH-FW (tank) ●527
WPR-FW (tank) ●527
WPS ●5 20 / 27
WPH ●5 -
WPR ●5 -
WPRR ●5 -
WKS ●5 -
Cu-finned tube heatexchanger ●-27
Electric heating element ●- -
Conditions:
20
27
Coverage Germany:
Compliance with the limits of the valid DHW regulations(TrinkwV2001), especiallythe
limits in accordance with Appendix2,Part 1-2 and Appendix3
Coverage EU :
Compliance with the limits of the EG-Regulations 83/98
* Start of guarantee at date of invoice
Products
DHW storage tanks
Combi buffer tanks
Buffer tanks
Tank accessories
Under condition that the limits of the valid DHW regulations have been respected, the
anode has been examined for the first time after 2 years and afterwards annuallyand that
the anode has been replaced byan original Wikora anode (individual receipts needed) by
a specialized company.

© Wikora GmbH Page 6 As of 8/25/2015
Errors excepted.
10 Installation record
The installation has been completed according to DIN and the technical rules in force. In addition, the customer has received
instruction concerning the operation and maintenance.
Place……………………………………………….. Date…………………………………………………………
Customer Installer
……………………………………………………. ……………………………………………………………….
Signature Signature
Place of installation: ………………………………………………………………………………………………………………………
Name: ……………………………………………………………………………………………………………………...
ZIP Code/Place: …………………………………………………..………………………………………………………………….
Street: ……………………………………………………………………...………………………………………………
Phone: ……………………………………………………………………………...……………………………………...
Tank model: ………………………………. Serial number …………….………………..………………
Date of invoice ………………………………………………………...…………………………………………………………..
In the case of reclamation, the receipts for maintenance must be provided as proof. Please complete the data sheet, including
the reason for reclamation, and submit to Wikora.
Submitting the maintenance record does not ensure any promise of guarantee or claim.