KSB Hya-Rain Installation instructions

Rainwater Harvesting System
Hya-Rain/Hya-Rain N
Installation/Operating Manual

Legal information/Copyright
Installation/Operating Manual Hya-Rain/Hya-Rain N
Original operating manual
All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,
edited or processed for any other purpose, nor otherwise transmitted, published or made available to a
third party without the manufacturer's express written consent.
Subject to technical modification without prior notice.
© KSB SE & Co. KGaA, Frankenthal 01/03/2018

Contents
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Contents
Glossary .................................................................................................................................................. 5
1 General.................................................................................................................................................... 6
1.1 Principles ...........................................................................................................................................................6
1.2 Symbols .............................................................................................................................................................6
1.3 Target group.....................................................................................................................................................6
1.4 Other applicable documents............................................................................................................................6
2 Safety...................................................................................................................................................... 7
2.1 Key to safety symbols/markings.......................................................................................................................7
2.2 General..............................................................................................................................................................7
2.3 Intended use .....................................................................................................................................................8
2.4 Personnel qualification and training...............................................................................................................8
2.5 Consequences and risks caused by non-compliance with these operating instructions ..............................8
2.6 Safety awareness ..............................................................................................................................................8
2.7 Safety information for the operator/user.......................................................................................................9
2.8 Safety information for maintenance, inspection and installation ................................................................9
2.9 Unauthorised modes of operation..................................................................................................................9
3 Transport/Temporary Storage/Disposal............................................................................................. 10
3.1 Checking the condition upon delivery..........................................................................................................10
3.2 Transport.........................................................................................................................................................10
3.3 Storage/preservation......................................................................................................................................10
3.4 Return to supplier...........................................................................................................................................11
3.5 Disposal ...........................................................................................................................................................11
4 Description............................................................................................................................................ 12
4.1 General description ........................................................................................................................................12
4.2 Designation.....................................................................................................................................................12
4.3 Name plate......................................................................................................................................................12
4.4 Design details..................................................................................................................................................12
4.5 Configuration and function...........................................................................................................................13
4.6 Noise characteristics .......................................................................................................................................14
4.7 Dimensions and weights ................................................................................................................................14
4.8 Commissioning/Start-up.................................................................................................................................14
4.9 Operating limits..............................................................................................................................................16
4.10 Shutdown/storage/preservation ....................................................................................................................16
5 Installation at Site................................................................................................................................ 18
5.1 Safety regulations...........................................................................................................................................18
5.2 Checks to be carried out prior to installation...............................................................................................18
5.3 Setting up and installing the system.............................................................................................................18
5.4 Connecting the piping ...................................................................................................................................18
5.5 Electrical connection ......................................................................................................................................21
6 Commissioning/Start-up/Shutdown................................................................................................... 29
6.1 Commissioning/Start-up.................................................................................................................................29
7 Operation.............................................................................................................................................. 31
7.1 System control ................................................................................................................................................31
7.2 Pump control unit...........................................................................................................................................32
7.3 Level control system .......................................................................................................................................33
8 Servicing/Maintenance........................................................................................................................ 34
8.1 General information/Safety regulations .......................................................................................................34
8.2 Servicing/inspection........................................................................................................................................34
8.3 Drainage/disposal ...........................................................................................................................................37
8.4 Dismantling the system..................................................................................................................................37
8.5 Reassembling the system ...............................................................................................................................42

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9 Trouble-shooting.................................................................................................................................. 47
10 Related Documents.............................................................................................................................. 49
10.1 General assembly drawing with list of components ....................................................................................49
10.2 Exploded view with list of components (pump)...........................................................................................50
10.3 Dimensions......................................................................................................................................................51
10.4 Drilling pattern for wall mounting ...............................................................................................................51
10.5 Connections ....................................................................................................................................................52
10.6 Wiring diagrams .............................................................................................................................................53
11 EU Declaration of Conformity............................................................................................................. 55
12 Certificate of Decontamination........................................................................................................... 56
Index ..................................................................................................................................................... 57

Glossary
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Glossary
Certificate of decontamination
A certificate of decontamination is enclosed by the
customer when returning the product to the
manufacturer to certify that the product has been
properly drained to eliminate any environmental
and health hazards arising from components in
contact with the fluid handled.
Noise characteristics
The noise emission to be expected, indicated as
sound pressure level LpA in dB(A)

1 General
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1 General
1.1 Principles
This operating manual is supplied as an integral part of the type series and variants
indicated on the front cover. The manual describes the proper and safe use of this
equipment in all phases of operation.
The name plate indicates the type series/size and main operating data. The serial/
series number uniquely identify the system and serve as identification in all further
business processes.
In the event of damage, immediately contact your nearest KSB service centre to
maintain the right to claim under warranty.
Noise characteristics (ðSection4.6,Page14)
1.2 Symbols
Table1: Symbols used in this manual
Symbol Description
✓Conditions which need to be fulfilled before proceeding with the
step-by-step instructions
⊳Safety instructions
⇨Result of an action
⇨Cross-references
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product
1.3 Target group
This operating manual is aimed at the target group of trained and qualified specialist
technical personnel. (ðSection2.4,Page8)
1.4 Other applicable documents
Table2: Overview of other applicable documents
Document Contents
Sub-supplier product literature Operating manuals, logic diagram and other
product literature of accessories and integrated
machinery components

2 Safety
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2 Safety
!DANGER
All the information contained in this section refers to hazardous situations.
2.1 Key to safety symbols/markings
Table3: Definition of safety symbols/markings
Symbol Description
!DANGER
DANGER
This signal word indicates a high-risk hazard which, if not avoided,
will result in death or serious injury.
!WARNING
WARNING
This signal word indicates a medium-risk hazard which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION
This signal word indicates a hazard which, if not avoided, could
result in damage to the machine and its functions.
Explosion protection
This symbol identifies information about avoiding explosions in
potentially explosive atmospheres in accordance with Directive
2014/34/EU (ATEX).
General hazard
In conjunction with one of the signal words this symbol indicates a
hazard which will or could result in death or serious injury.
Electrical hazard
In conjunction with one of the signal words this symbol indicates a
hazard involving electrical voltage and identifies information about
protection against electrical voltage.
Machine damage
In conjunction with the signal word CAUTION this symbol indicates
a hazard for the machine and its functions.
2.2 General
This operating manual contains general installation, operating and maintenance
instructions that must be observed to ensure safe operation of the system and
prevent personal injury and damage to property.
The safety information in all sections of this manual must be complied with.
The operating manual must be read and fully understood by the specialist personnel/
operators responsible prior to installation and commissioning.
The contents of this operating manual must be available to the specialist personnel
at the site at all times.
Instructions attached directly to the system must always be complied with and be
kept in a perfectly legible condition at all times. This applies to, for example:
▪Arrow indicating the direction of rotation
▪Markings for connections
▪Name plate
The operator is responsible for ensuring compliance with all local regulations not
taken into account in this manual.

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2.3 Intended use
▪The system must only be operated within the operating limits described in the
other applicable documents.
▪Only operate systems which are in perfect technical condition.
▪Do not operate partially assembled systems.
▪The system may only handle the fluids described in the product literature of the
relevant design variant.
▪Never operate the system without the fluid to be handled.
▪Observe the information on minimum flow rates specified in the product
literature (to prevent overheating, bearing damage, etc).
▪Observe the information on maximum flow rates specified in the product
literature (to prevent overheating, mechanical seal damage, cavitation damage,
bearing damage, etc).
▪Do not throttle the flow rate on the suction side of the system.
▪Consult the manufacturer about any other modes of operation not described in
the product literature.
Prevention of foreseeable misuse
▪Never exceed the permissible operating limits (pressure, temperature, etc.)
specified in the product literature.
▪Observe all safety information and instructions in this manual.
2.4 Personnel qualification and training
All personnel involved must be fully qualified to install, operate, maintain and
inspect the machinery this manual refers to.
Personnel responsibilities, competence and supervision must be clearly defined by the
operator for installation, operation, maintenance and inspection.
Deficits in knowledge must be rectified by sufficiently trained specialist personnel
training and instructing the personnel who will carry out the respective tasks. If
required, the operator can commission the manufacturer/supplier to train this
personnel.
Training on the system must always be supervised by the technical specialist
personnel.
2.5 Consequences and risks caused by non-compliance with these operating
instructions
▪Non-compliance with these operating instructions will lead to forfeiture of
warranty cover and of any and all rights to claims for damages.
▪Non-compliance can, for example, have the following consequences:
–Hazard to persons by electrical, thermal and mechanical effects
–Failure of important product functions
–Failure of prescribed maintenance and servicing practices
2.6 Safety awareness
In addition to the safety information contained in this manual and the intended use,
the following safety regulations shall be complied with:
▪Accident prevention, health and safety regulations
▪Safety regulations for handling hazardous substances
▪Applicable standards, directives and laws

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2.7 Safety information for the operator/user
▪Eliminate all electrical hazards. (In this respect refer to the applicable national
safety regulations and/or regulations issued by the local energy supply
companies.)
2.8 Safety information for maintenance, inspection and installation
▪Modifications or alterations of the system require the manufacturer's prior
consent.
▪Use only original spare parts or parts authorised by the manufacturer. The use of
other parts can invalidate any liability of the manufacturer for resulting damage.
▪The operator ensures that maintenance, inspection and installation is performed
by authorised, qualified specialist personnel who are thoroughly familiar with
the manual.
▪Only carry out work on the system during standstill, with the system de-energised
and secured against unintentional start-up.
▪When taking the system out of service always adhere to the procedure described
in the manual.
▪As soon as the work has been completed, re-install and/or re-activate any safety-
relevant and protective devices. Before returning the system to service, observe
all instructions on commissioning.
▪Make sure the system cannot be accessed by unauthorised persons (e.g. children).
2.9 Unauthorised modes of operation
Always observe the limits stated in the product literature.
The warranty relating to the operating reliability and safety of the system supplied is
only valid if the system is used in accordance with its intended use.

3 Transport/Temporary Storage/Disposal
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3 Transport/Temporary Storage/Disposal
3.1 Checking the condition upon delivery
1. On transfer of goods, check each packaging unit for damage.
2. In the event of in-transit damage, assess the exact damage, document it and
notify KSB or the supplying dealer and the insurer about the damage in writing
immediately.
3.2 Transport
DANGER
System falling off the pallet
Risk of injury by falling system!
▷Always transport the system in vertical position.
▷Never suspend the system by its power cable.
▷Use suitable, approved transport equipment, e.g. crane, forklift or pallet trucks.
üThe system is shipped secured to a small wooden pallet and covered with a
cardboard box.
The accessories are packed in the same box (see sticker on cardboard box).
The box is provided with two carrying handles arranged on the sides to allow
transport.
1. To unpack the system cut the packing straps.
2. Take the accessories and padding out of the box
3. Lift off the box.
ðThis exposes the system secured to the wooden pallet.
4. Check the box contents for completeness.
5. Check the system for any in-transit damage.
6. Select suitable transport equipment.
7. Transport the system to the place of installation.
3.3 Storage/preservation
If commissioning is to take place some time after delivery, we recommend that the
following measures be taken for storing the rainwater harvesting system:
CAUTION
Damage during storage by frost, humidity, dirt, UV radiation or vermin
Corrosion/contamination of the rainwater harvesting system!
▷Store the system in a frost-proof, roofed area.
CAUTION
Wet, contaminated or damaged openings and connections
Leakage or damage of the rainwater harvesting system!
▷Only open the openings of the rainwater harvesting system at the time of
installation.
Store the rainwater harvesting system in a dry, protected room where the
atmospheric humidity is as constant as possible.

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3.4 Return to supplier
1. Drain the system as per operating instructions.
2. Always flush and clean the system.
3. In addition, anhydrous inert gas must be blown through the system to ensure
drying.
4. Always complete and enclose a certificate of decontamination when returning
the system.
Always indicate any safety and decontamination measures taken.
NOTE
If required, a blank certificate of decontamination can be downloaded from the
following web site: www.ksb.com/certificate_of_decontamination
3.5 Disposal
1. Dismantle the system.
Collect greases and other lubricants during dismantling.
2. Separate and sort the pump materials, e.g. by:
- Metals
- Plastics
- Electronic waste
- Greases and other lubricants
3. Dispose of materials in accordance with local regulations or in another
controlled manner.

4 Description
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4 Description
4.1 General description
▪Rainwater harvesting system
System for handling clean to slightly contaminated water not containing aggressive,
abrasive or solid substances.
4.2 Designation
Table4: Key to the designation
Designation Description
Hya-Rain Rainwater harvesting system with float switch
Hya-Rain N Rainwater harvesting system with level sensor and control
system with level indication in % and automatic mains
water replacement
4.3 Name plate
1
2
4
38
7
9
10
Hya-Rain N
11037303
ZNI1448 P
230 V ~ 3,7 A
50 Hz 800 W IP 44
H
max :43.0 m Q
max :4,0 m³/h
2014w09
Made in Germany
Johann-Klein-Straße 9
Deutschland
67227 Frankenthal
KSB SE & Co. KGaA
6
5
26,5 kg
Hya-Rain N
Fig.1: Name plate (example)
1 Type series/ Size 2 Rated current
3 Rated voltage 4 Rated power
5 Rated frequency 6 Maximum head
7 Year/week of construction 8 Total weight
9 Enclosure 10 Maximum flow rate
4.4 Design details
Design
▪Angled tank designed for wall mounting
▪Mains water storage tank
–Material: PE-LLD, dark
–Storage volume approx. 13l
▪Float valve for mains water supply (approx. 2.7m³/h)
Pump:
▪Enclosure IP44
System:
▪IP42 enclosure
Electrical connection
▪230V, 50Hz, 800W
▪Power input in stand-by mode: 2.5 - 3Watt
▪1.5m power cable with shockproof plug

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Drive
▪230V ± 10 %
▪DOL starting
▪Thermal class F
▪Enclosure IP44
▪Thermal motor protection with automatic reset and start-up
Bearings
▪Grease-packed deep groove ball bearings sealed for life
4.5 Configuration and function
1
2
3
4
5
6
7
8
Fig.2: Sectional drawing
1 Pump control unit 2 Angled tank
3 Pump 4 Three-way valve
5 Suction nozzle, rainwater storage
tank
6 Discharge outlet
7 Mains water supply 8 Suction nozzle, mains water
storage tank
Design A multi-stage high-pressure pump is installed in an angled tank designed for wall
mounting. Via a three-way valve the high-pressure pump is connected to a suction
nozzle leading to the outside.
Function The self-priming pump withdraws fluid from the rainwater storage tank via the
suction nozzle.
If the rainwater storage tank is empty, the pump can withdraw water from the mains
water storage tank. To this end, the pump is fitted with a three-way valve providing
it with a second suction nozzle towards the mains water storage tank.
The mains water storage tank contains a water volume of approximately 13litres,
which is automatically replenished from the public water supply system or from other
(service water) pressure lines via a float valve.
If a sensor indicates that the rainwater storage tank is empty, the system will
automatically switch to the mains water storage tank from which it will withdraw
water until the rainwater storage tank contains a sufficient amount of water again.
Once the rainwater storage tank contains enough water again, this condition is
signalled to the system, which will then automatically switch back to rainwater
mode.
The pump is started and stopped automatically when a consumer installation is
opened and closed.

4 Description
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Monitoring equipment For monitoring purposes, the system is equipped with a pump control unit in the
discharge line, which starts the pump as soon as the pressure drops below 2.5 bar
(factory setting) and stops it (with an after-run time of approx. 10 seconds) when the
consumer installation is closed. At the same time, this device protects the pump
against dry running. A lift check valve fitted in the control unit prevents the pumped
water from flowing back. The pressure is indicated by a fitted pressure gauge.
4.6 Noise characteristics
Depending on the operating data of the system, the noise level will be approximately
49-50dB(A).
4.7 Dimensions and weights
Dimensions For the dimensions refer to the outline drawings of the system.
(ðSection10.3,Page51)
Weights Hya-Rain
▪Without water fill: approx. 26 kg
▪With water fill: approx. 42 kg
Hya-Rain N
▪Without water fill: approx. 27 kg
▪With water fill: approx. 43 kg
4.8 Commissioning/Start-up
4.8.1 Prerequisites for commissioning/start-up
Before commissioning/start-up of the system make sure that the following
requirements are met:
▪The system has been properly connected to the electric power supply and is
equipped with all protection devices.
▪All relevant VDE standards and/or regulations applicable in the country of use are
complied with.
4.8.2 Priming and venting the system
Priming üThe connection of the mains water back-up system has been connected to the
mains water supply.
üThe system has been properly connected to the electric power supply.
1. Set the operating mode selector switch to "mains water mode" for
approximately 15 seconds. (ðSection7.1,Page31)

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ðThe system tank will fill automatically.
Venting üThe system tank has been filled.
1. Insert the vent hose into the tank.
2. Open a consumer installation.
3. Briefly start up the system via the pump master switch. (ðSection7.1,Page31)
ðThe system will be vented automatically.
NOTE
After commissioning, we recommend closing the automatic vent valve.
4.8.3 Setting the level control system (for Hya-Rain N only)
A B
Fig.3: Level control system
A Percentage key B Timer key
Calibrating the level display
1. To calibrate the level display keep the Percentage key pressed for 10 seconds.
Setting for automatic switching to mains water mode
1. Press the Timer key twice.
ðThe display shows a changeover interval of 10-60 days.
(Factory setting = 60days)
2. Press the Percentage key to change this value.
3. Press the Timer key three times.
ðThe display shows the replacement time in minutes.
(The replacement time is the time the pump requires to pump the tank
empty. This time depends on the consumption. If only toilet flush boxes are
connected it will take longer; if a garden tap is connected, the tank will be
emptied in a shorter time. Factory setting 3 minutes.)
4. Press the Percentage key to change this value.
5. Press the Timer key four times or wait for 20 seconds.
ðThe display changes back to display mode "Fill level in %".

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4.8.4 Start-up
The system is in operating mode as soon as it is plugged into the mains.
4.8.5 Functional test
Checking the dry running
protection function
üThe system has been properly set up, installed, connected and commissioned.
1. Close the suction-side water supply (from the rainwater storage tank).
ðThe pump control unit permanently monitors the system for dry running.
Should insufficient fluid be fed into the system from the suction side (no
flow), the pump control unit will trip after 10 to 15 seconds.
This after-run time can be repeated by pressing the reset key.
Checking the modes of
operation
üThe system has been properly set up, installed, connected and commissioned.
1. Check that the indicator lamps light up.
Rainwater
storage tank
This indicator lamp lights up when the pump withdraws
water from the rainwater storage tank.
Mains water
mode
This indicator lamp lights up when the pump withdraws
water from the mains water storage tank and the mains
water back-up system is activated.
Automatic
mode
This indicator lamp lights up when the pump automatically
switches to the available water tank.
4.9 Operating limits
Table5: Operating limits
Characteristic Hya-Rain / Hya-Rain N
Operating pressure max. 6bar1)
Inlet pressure for mains water supply max.4bar
Start-up pressure max.2.5bar
Suction lift max.7m
Fluid temperature max.35°C
Ambient temperature max.40°C
Atmospheric humidity max.50%at 40°C
Voltage/frequency 230 V ± 10 % / 50 Hz
4.10 Shutdown/storage/preservation
4.10.1 Measures to be taken for shutdown
WARNING
Unintentional start-up of the rainwater harvesting system
Risk of injury by moving parts!
▷Only carry out work on the rainwater harvesting system after checking that the
system has been disconnected from the power supply.
▷Secure the rainwater harvesting system against unintentional starting.
1. Disconnect the system from the power supply and protect it against start-up.
2. Remove the system as per operating instructions.
3. Shut off the mains water supply and the discharge line.
4. Flush the system as per operating instructions.
5. Leave the system to dry.
1) Inlet pressure and pump discharge pressure must not exceed 6 bar.

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NOTE
To drain the tank, disconnect the suction line from the rainwater harvesting system
and set the three-way valve to the middle position.

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5 Installation at Site
5.1 Safety regulations
DANGER
Unsuitable electrical installation
Danger to life!
▷Make sure the electrical installation meets the VDE 0100 installation rules (i.e.
sockets with earthing terminals).
▷Make sure the electric mains is equipped with a residual current device of
maximum 30 mA.
▷Always have the electrical connections installed by a trained and qualified
electrician.
5.2 Checks to be carried out prior to installation
Before installing the pump make sure that the following requirements are met:
▪Check the data on the name plate of the system to make sure it can be operated
on the available mains.
▪The fluid to be handled matches the description of suitable fluids.
▪The above safety instructions have been complied with.
▪The installed room is dry, frost-free and well-ventilated.
▪Ambient temperature <40°C.
▪Maximum atmospheric humidity50%.
5.3 Setting up and installing the system
The system must be installed in a dry, frost-free and ventilated room.
1. Ideally, it should be mounted on an exterior wall.
The wall must be suitable to accept four Ø10mm plug fixings and to support
the system weight.
2. Mark the 4 fastening points with the help of the enclosed drilling template.
3. Drill 4xØ10mm anchoring holes.
4. Insert the four plug fixings.
5. Mount and align the two lower hanging brackets.
6. Remove the cover from the system.
7. Place the system on the two lower hanging brackets.
8. Fit the upper hanging brackets.
9. Fit the cover on the system.
5.4 Connecting the piping
5.4.1 Connecting the system to the mains water supply
CAUTION
Excessive bend of connection line
System defect due to impermissible loads on the system!
Reduced service life!
▷Connect the connection line without transmitting any stresses or strains.
No forces must act on the connection nozzles and the system.

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CAUTION
Pressure higher than mains water back-up limit of 4 bar
System defect due to impermissible load!
▷Install pressure reducers upstream of the system to make sure that the inlet
pressure of the mains water supply does not exceed 4 bar.
CAUTION
Solid substances in the drinking water (stones, sediments, limescale deposits)
System defect due to impermissible loads!
Reduced service life!
▷If used in areas where the drinking water quality is affected by the above,
provide a drinking water filter.
NOTE
Fitting a shut-off valve at the site is recommended.
1. Connect the tank (R 3/4") to the mains water supply line via the float valve.
2. Fill the angled tank with water.
3. Open the mains water supply line.
ðThe tank will fill automatically once the mains water supply line is opened.
5.4.2 Suction-side connection
NOTE
The suction-side inlet line must be tightly sealed to allow self-priming of the pump.
1. Connect the suction hose or line (min.Ø1") coming from the rainwater storage
tank (cistern) to the bottom suction nozzle with a screwed pipe fitting, so that
the system can be removed, if necessary.
Always lay the suction hose/line with a rising slope towards the pump.
2. Fit a lift check valve at the end of the suction line/hose.

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5.4.3 Connecting the discharge line
CAUTION
Excessive bend of connection line
System defect due to impermissible loads on the system!
Reduced service life!
▷Connect the connection line without transmitting any stresses or strains.
No forces must act on the connection nozzles and the system.
NOTE
Fitting a shut-off valve at the site is recommended.
1. By means of the flexible discharge hose the system can be connected to the
rainwater piping either on the right or on the left.
Excessive bending of the flexible connecting lines will reduce service life and
cause impermissible forces on the connection nozzles.
5.4.4 Overflow
EN1717 stipulates that an overflow must be provided to allow discharge into a sewer
system. This system is designed with a 70mm diameter overflow.
In the event of leakage of the mains water back-up system, the water will be
discharged via the overflow as soon as it rises above the maximum fluid level.
NOTE
This system is only DVGW-approved if backflow from the sewage system is
prevented!
If no overflow funnel is fitted to the system, the system must be connected to the
sewage system with an overflow syphon, which is available as accessory. Make sure
that the overflow syphon is not rigidly connected to the system and is installed to
DIN1986-100, EN1717.
NOTE
For permanent connection to the sewage system we recommend the use of a
siphon trap to prevent bad odours.