unGer HYDRO POWER RO20S User manual

www.ungerglobal.com www.ungerglobal.com32 1OPERATING INSTRUCTIONS
RO
(RO20S)
22842 V1.0 1121
Operating
Instructions
READ THE OPERATING
INSTRUCTIONS BEFORE TURNING
ON THE SYSTEM!
KEEP OPERATING INSTRUCTIONS
WITH THE MACHINE AT ALL TIMES!

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HydroPower® RO
Table of Contents
1 Introduction................................................................................................................ 4
1.1 General information............................................................................................. 4
1.2 Product lifetime guarantee.................................................................................. 4
2 Safety Information...................................................................................................... 4
2.1 Safety alert symbols and signal words................................................................ 5
2.2 Warning signs ...................................................................................................... 6
2.3 Mandatory signs................................................................................................... 7
2.4 General safety information.................................................................................. 8
2.4.1 Basic principles........................................................................................... 8
2.4.2 Unit protection............................................................................................. 8
2.5 Mechanical hazards ............................................................................................. 9
2.6 Electrical hazards ................................................................................................ 9
2.7 Thermal hazards.................................................................................................. 9
2.8 Hazards due to pressure...................................................................................... 9
2.9 Hazards from materials and substances ............................................................ 10
2.10 General hazards................................................................................................... 11
2.10.1 Technical label ............................................................................................ 11
2.11 Responsibilities of the operator .......................................................................... 12
2.12 Storing the operating instructions ...................................................................... 13
2.13 Contact address ................................................................................................... 13
3 About HydroPower RO ............................................................................................... 14
3.1 Using the HydroPower RO .................................................................................. 14
3.1.1 Intended use................................................................................................ 14
3.2 Technical specifications....................................................................................... 14
3.2.1 Operating conditions ................................................................................... 14
3.2.2 Electrical specifications .............................................................................. 14
3.2.3 Protection types of electrical components ................................................. 14
3.2.4 Pressure ratings.......................................................................................... 15
3.2.5 Dimensions quick overview ........................................................................ 15
3.2.6 Media connections ...................................................................................... 15
3.2.7 Water quality ............................................................................................... 15
3.3 Water output quantity .......................................................................................... 15
3.4 System products and accessories ....................................................................... 15

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HydroPower® RO
Table of Contents
4 Preparing for use ....................................................................................................... 16
4.1 Construction of the HydroPower RO ................................................................... 16
4.2 Interfaces ............................................................................................................ 16
4.3 Transport and storage ......................................................................................... 17
4.3.1 Transportation ............................................................................................ 17
4.3.2 Operating the HydroPower RO.................................................................... 18
4.4 Startup ................................................................................................................. 19
4.4.1 Starting up a HydroPower RO ..................................................................... 20
4.5 Storage ................................................................................................................ 20
5 Operation of the HydroPower RO .............................................................................. 21
5.1 General information............................................................................................. 21
5.2 Cleaning surfaces with the HydroPower RO ....................................................... 22
5.3 Interruption of work............................................................................................. 22
5.4 Turning off the HydroPower RO .......................................................................... 23
6 Troubleshooting ......................................................................................................... 23
6.1 Procedures for troubleshooting........................................................................... 23
6.1.1 Water pressure too low .............................................................................. 23
6.1.2 Overpressure ............................................................................................. 23
6.1.3 Overheating ................................................................................................. 24
7 Maintenance and servicing......................................................................................... 25
7.1 General information............................................................................................. 25
7.2 Maintenance and maintenance plan ................................................................... 26
7.2.1 Daily inspection .......................................................................................... 26
7.2.2 Monthly examination................................................................................... 26
7.2.3 Membrane protection.................................................................................. 27
7.3 Repair and replacement of parts......................................................................... 28
7.3.1 Replacing filter cartridges .......................................................................... 28
8 Turning off the system ............................................................................................... 30
8.1 Disassembly and storage..................................................................................... 30
8.2 Recycling.............................................................................................................. 31
8.3 Disposal of waste................................................................................................. 31

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HydroPower® RO
Introduction
1 Introduction
1.1 General information
This manual allows you to use the HydroPower RO safely and efficiently.
The operating instructions are part of the HydroPower RO and must be kept with the HydroPower RO and
accessible to operating personnel in the immediate vicinity of the HydroPower RO at all times.
Before starting work, operating personnel must have read and understood this manual. All safety instructions
and instructions for use stated in this manual must be followed for safe operation.
Please refer to the Unger website (www.ungerglobal.com) for the Safety Data Sheet (SDS) information.
1.2 Product Lifetime Guarantee
We design and test Unger products to ensure they meet our high quality standards. We support this with the
Unger Professional Product Lifetime Guarantee. We will replace your Unger HydroPower RO System if it does
not meet our high quality standards for material, construction, or workmanship.
The guarantee does not cover:
• Failing to follow Unger‘s operating instructions.
• Operating and installation errors.
• Opening/disassembly of housing other than by Unger (except resin replacement as described in section 7.3).
• Replacing connections and components or performing unauthorized modifications other than by Unger.
If you believe that your Unger HydroPower RO System does not meet the guidelines as described for the Unger
Professional Lifetime Guarantee, please contact us at 1-800-833-6100. Unger may, at its discretion, require
return of the product for examination and testing. If a replacement product is no longer available, Unger will
replace your product with one of equal or greater retail value at its sole discretion.

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HydroPower® RO
Safety Information
2 Safety Information
2.1 Safety alert symbols and signal words
Your safety and the safety of others are very important. We have provided important safety messages in this
manual and on the HydroPower RO. Always read and obey all safety messages. These instructions are not
meant to cover every possible condition and situation that may occur. Common sense and caution must be
practiced when operating and maintaining the HydroPower RO.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and
tell you what can happen if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential hazards that can cause serious
injury or death. All safety messages will follow this safety alert symbol along with the word
”DANGER” or ”CAUTION.” These words mean:
DANGER
Indicates a hazardous situation that can lead to serious injury or death.
CAUTION
Indicates a potentially hazardous situation. Which, if not avoided, can
result in minor or moderate injuries.
ATTENTION
Indicates a situation which can lead to material damage.
NOTE
Here you can find operating tips and other useful information.

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HydroPower® RO
Safety Information
2.2 Warning signs
Warning of a hazard.
Warning of electrical voltage.
Warning of overpressure in containers.
Warning of hot surfaces.
Warning of suspended loads.
Warning of injury to the limbs.
Notes
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________

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HydroPower® RO
Safety Information
2.3 Mandatory signs
Application tips and other useful information.
Use protective gloves.
Use safety shoes.
Use protective goggles.
Notes
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________

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2.4 General safety information
2.4.1 Basic principles
Special safety information may apply to certain activities. Safety instructions and warnings are
given in the respective sections of the operating instructions.
Operate the HydroPower RO only:
• In accordance with the operating instructions
• If the HydroPower RO is in proper working order
This includes:
• The safety labels attached to the HydroPower RO must always be complete and legible condition.
Replace damaged or illegible labels.
• Before cleaning or maintaining the HydroPower RO, turn off the main power switch and disconnect it
from all electricity sources.
• Before performing maintenance on the filter vessels, make sure the vessels are depressurized.
• Clean the HydroPower RO of dirt and impurities after each use.
Use personal protective equipment to avoid personal injury:
`protective gloves
`safety shoes
`safety goggles
2.4.2 Unit protection
Overheat protection
If the pump overheats, the thermal protection circuit is triggered automatically and the
HydroPower RO will shut off.
HydroPower® RO
Safety Information

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HydroPower® RO
Safety Information
2.5 Mechanical hazards
Crushing due to incorrect operation and / or carelessness.
`Do not reach between the ground surface and the HydroPower RO.
`Do not place objects in the openings of the HydroPower RO.
`Place the HydroPower RO on a level surface only.
`Ensure sufficient stability and secure the HydroPower RO against tipping over or rolling away.
`In the case of a malfunction or emergency, immediately turn off the unit by turning the lower
switch to ”OFF”.
`Wear safety shoes.
2.6 Electrical hazards
Electric shock and burns due to live parts.
`Before each use, perform a visual inspection of the power cable for damage. If you notice any
damage, contact your distributor.
`Maintenance on the electrical components of the system may only be carried out by employees
of Unger or its authorized distributors / technicians.
2.7 Thermal hazards
Burns due to hot surfaces.
`The housing of the pump motor as well as the coils of the valves can become hot during
operation. Allow the system to cool down sufficiently before touching components marked with
this symbol.
`Wear protective gloves.
2.8 Hazards due to pressure
Injuries from pressurized containers.
`The three (3) filter housings are pressurized during operation.
`Never open/remove a filter housing or any hose during operation.

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HydroPower® RO
Safety Information
2.9 Hazards from materials and substances
The safety data sheets for materials and substances can be found online at
www.ungerglobal.com/service/downloads/safety-data-sheet.
Irritation to the eyes, skin and respiratory tract.
`Resin can cause irritation to the eyes, skin and resiratory tract. Avoid any contact with the resin
when replacing the DI resin cartridge.
`In case of resin contact with eyes, remove contact lenses and rinse eyes immediately and
thoroughly with clean water.
`Wash hands thoroughly after finishing work.
`Wear protective gloves and goggles.
Spilled resin is a slipping hazard.
`If resin is spilled, carefully clean it up immediately.
`Wear safety shoes.
Irritation to eyes, skin and respiratory tract through contact with liquid membrane care.
`Avoid any contact with and swallowing of the membrane care liquid (sold separately).
`In case of contact with eyes, remove contact lenses and rinse eyes immediately and thoroughly
with clean water.
`Keep the membrane care liquid sealed and inaccessible to children.
`Wear protective gloves and goggles.

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HydroPower® RO
Safety Information
2.10 General hazards
Read and follow ANSI Standard IWCA 1-14.1 (Window Cleaning Safety).
Purified water is delivered to the waterfed pole by hoses from the HydroPower Ultra system. This introduces a
risk of tripping to both the operator and the general public. Identify work area with appropriate signage.
Any surface that becomes wet must be identified with appropriate signage to direct pedestrians and workers
away from work area. During wintertime, it is important to avoid water pooling, which could freeze, creating a
dangerous slip hazard.
General hazards associated with the use of water fed poles and deionization equipment1:
`Trip hazard to the general public when using hoses.
`Slip hazard presented from wet pathways.
`Slip hazard for operator when concentrating on work.
`Falls from height when working on flat roofs.
`Electrocution from poles coming into contact with overhead power source.
`Injuries to others from falling poles or fabric of the building that may be dislodged.
`Injury to others from falling poles caused by incorrect handling or failure of pole.
`Injury through incorrect manual handling of poles and other equipment.
`Hazards from carrying tanks, systems and equipment that are overloaded, unstable, unsecured or
incorrectly installed within a vehicle.
2.10.1 Technical label
RO (RO20S)
Note:
Serial Number to be sequentially generated on each label
Material:
Adhesive-backed vinyl or polyester
Silver foil background (refer to Hydropower Spec label)
Voltage ● Voltaje ● Tension:
Pump performance ● Rendimiento de la pompa ● Performance de la pompe:
Water Inlet/Outlet Connectors:
Conectores de agua de entrada/salida:
Connecteurs d’entrée et de sortie d’eau:
Max. Inlet Pressure ● Presión máxima de entrada ● Pression d’entrée maximale:
Max. Outlet Pressure ● Presión máxima de salida ● Pression de sortie maximale:
Max. Water Temperature ● Te mperatura máxima del agua ● Température maximale de l’eau:
Ambient Temperature ● Temperatura ambiente ● Température ambiante:
Serial Number ● Número de serie ● Numéro de série:
For outdoor use only, store indoors ● Sólo para uso exterior, almacenar al interior ● À utiliser à l’extérieur uniquement, ranger à l’intérieur
110V / 60Hz
P1/P2: 0.50 HP
3/4“ Quick coupling
Acoplamiento rápido de ¾ pulg
Couplage rapide de ¾ po
6 Bar [87 PSI]
10 Bar [145 PSI]
30°C [85°F]
5°C - 40°C [40°F - 105°F]
®
22417

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HydroPower® RO
Safety Information
2.11 Responsibilities of the operator
The HydroPower RO is for commercial use only.
• The operator must be familiar with and observe all applicable workplace rules and regulations, including all
accident prevention procedures.
• The operator must be familiar with and strictly adhere to all applicable local, state/provincial and federal
labor laws, safety codes and standards.
• The operator must have read and understood the HydroPower RO Operating Instructions and have been
trained in its safe and proper operation before using the HydroPower RO.
• The operator must insure that all safety labels on the HydroPower RO are legible at all times.
• The HydroPower RO should not be used if the operator is under the influence of drugs, alcohol, or
medications.

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HydroPower® RO
Safety Information
2.12 Storing the Operating Instructions
This manual must be kept with the HydroPower RO and must be available to the entire staff at all times.
If the manual becomes illegible for any reason, the operator must obtain a replacement manual from the
manufacturer.
These operating instructions can also be downloaded as a PDF at www.ungerglobal.com/downloads.
NOTE
When transferring or reselling the HydroPower RO to third parties, the
following documents should be passed on to the new owner:
`this manual,
`the documentation of any repair work,
`proof of maintenance work.
2.13 Contact Address
Unger Enterprises LLC
425 Asylum Street
Bridgeport, CT 06610
United States
Tel.: [phone]
Fax: [phone]
[e-mail]
www.ungerglobal.com

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HydroPower® RO
General safety regulations
3 About the HydroPower RO
3.1 Using the HydroPower RO
3.1.1 Intended use
The HydroPower RO is used for the filtration of municipal water by demineralization for the purpose of glass
and surface cleaning.
The HydroPower RO is intended for commercial use only.
The HydroPower RO may only be connected to municipal water lines.
The use of the HydroPower RO in any way other than as described in this manual, including for bacteria
removal, is prohibited.
This applies in particular to the use of the HydroPower RO for bacteria removal.
3.2 Technical specifications
3.2.1 Operating conditions
Ambient temperature [°F/C] 41-104 / 5 … 40
Water temperature [°F/C] 41-77 / 5 ... 25
ATTENTION
Material damage due to improper handling.
Ensure that the incoming water is of known drinking quality.
The drinking (tap) water must be free of iron, manganese and heavy
metals (max. 0.2 ml / l iron, 0.05 mg / l manganese), the maximum silicate
(SiO2) content must not exceed 20 mg / l. It must also not contain barium
and strontium.
3.2.2 Electrical specifications
Primary electrical connection [V / Hz]
110V / 60 Hz
Power consumption 0.37 kW
3.2.3 Protection types of electrical components
Electric motor IP 44
Pump Control IP 65

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HydroPower® RO
General safety regulations
3.2.4 Pressure ratings
Input pressure [PSI] 14-87 PSI
Max. operating pressure [bar] 10
3.2.5 Dimensions quick overview
Height [in/mm] 37.8 / 960
Width [in/mm] 20.9 / 530
Depth [in/mm] 26.4 / 670
Empty weight [lb/kg] 99 lb / 45 kg
3.2.6 Media connections
Standard feedwater connection thread [”] 3/4
Standard concentrate connection thread [”] 3/4
Standard permeate connection thread [”] 3/4
3.2.7 Water quality
Max. salt content in incoming water [ppm] 1000
SiO2content in incoming water [mg/l] 20
3.3 Water output quantity
The water flow depends on factors such as water temperature, hose length and hose diameter.
Measuring Setup:
• Hose length: each 25m / 82‘
• 2 different hose diameters: 5mm (0.20”) / 12.5mm (0.5”)
• 2 different water temperatures: 46 / 55 / 68°F (8 / 13 / 20°C)
• Line pressure: 4 bar / 58 PSI
3.4 System products & accessories
The following is included in each delivery:
• HydroPower RO
• Filter key
• Concentrate hose
• Suction pipe for membrane care
• Instruction manual
Water Output l/h
Pure Water Mode (PURE)
(water flows through
all filters, including
membrane)
Water temperature °F
BOOST Mode
Water Output l/h
(line water with high
pressure, bypass to
water out)
Water temperature °F

16
HydroPower® RO
System overview
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1212
1414
66
1111
1111
88
77
99
1010
55
44
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2233
4 Preparing for use
4.1 Construction of the HydroPower RO
4.2 Interfaces
On the front of the unit is one connection for attaching the hose for the water
fed pole and one connection for the water supply. These are standard quick
connections.
The water outlet for the concentrate is located at the back of the unit. Pour the
concentrate down the drain using the enclosed concentrate hose.
1 Manometer
2 TDS-Meter
3 Switch WORK/RO FLUSH
4 Switch TAP BOOST / OFF / PURE
5 Water inlet
6 Water outlet
7 Water meter
8 Carbon/sediment combi pre-filter
9 RO Membrane
10 DI resin filter
11 Pump ventilation slots
12 Pump Control
13 Power cord (GFCI)
14 Concentrate output
(connection concentrate hose)
The manometer shows the water pressure behind the pump. Ensure that the water
inlet pressure is at least 1 bar. The optimum is 4 bar, maximum should not exceed
6 bar. The pump increases the pressure by approximately 4 bar. Accordingly, the
pressure during operation should not exceed 10 bar.
The TDS meter shows the water quality at water outlet for the Pure and the Boost
Mode.
PURE: TDS meter shows the value of the filtered water after RO Membrane and
DI resin. It should ideally show a value of 0. If the value is 10 or greater, the resin
should be replaced. TAP BOOST: TDS meter shows the value of the tap water.
The water meter measures the water flow at the inlet. This is particularly
important for the combi pre-filter, as it must be replaced after approximately
30,000l / 8,000 gal.

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HydroPower® RO
Transport and storage
4.3 Transport and storage
4.3.1 Transport
The HydroPower RO is delivered on a pallet.
Check the completeness of the delivery, see section ”3.4 System products & accessories”.
The HydroPower RO is carefully tested and packaged before shipment. However, damage during transport
cannot be ruled out. Therefore, immediately check the HydroPower RO upon delivery for any damage.
If the HydroPower RO has been damaged during transport, show the damage to the company delivering
the HydroPower RO on behalf of your distributor.
Complaints of damage during transport cannot be accepted without written confirmation by the
distributor.
In the case of transport of the HydroPower RO by a delivery vehicle:
DANGER
Severe injuries and property damage due to the HydroPower RO falling
are possible.
`Do not walk or grab under the suspended load.
`Use only the fixing points provided for fixing the hoist.
`Only use a suitable hoist.
`Secure the HydroPower RO to the transport.
`Observe the weight and maximum dimensions of the HydroPower RO.
`Wear protective gloves and safety shoes.
When transporting, ensure that the HydroPower RO is properly
secured and cannot move during transport. Protect the
HydroPower RO from external damage.
Use the fixing points of the frame during transport, or if the
HydroPower RO is being lifted with a crane, in order to avoid
damage.

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HydroPower® RO
Operating the HydroPower RO
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4.3.2 Operating the HydroPower RO
What is Pure Water?
Pure Water is water in its purest form, physically processed to remove the minerals that
would otherwise lead to limescale spots and streaks. Such impurities are referred to as TDS
(Total Dissolved Solids) and are measured in ppm (parts per million). Water is considered
100 % demineralised (pure) when its TDS is measured at 0 ppm. TDS of 180 ppm is
considered as average water hardness.
Flow of water purification
The water enters the HydroPower RO via the water inlet (1).
The carbon/sediment combi pre-filter (2), which filters out the largest impurities and chlorine from the water
and thus protects the membranes, sits before the membrane.
The membrane filter (3) removes up to 98% of the minerals from the water in the HydroPower RO.
The resin filter (4) sits after the membrane, which removes the last 2% of the minerals from the water in the
HydroPower RO.
Pure water is discharged from the water outlet (5) into a hose connected to a water fed pole for cleaning glass
surfaces without chemicals.
The three (3) filter cartridges (2-4) can be easily removed and replaced (see section 7.3.1).
1 Water inlet
2 Carbon/sediment combi pre-filter
3 RO membrane
4 DI resin filter
5 Water outlet

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6
4
5
6a
1
HydroPower® RO
Startup
4.4 Startup
CAUTION
Minor or moderate injuries due to pressurized containers possible.
`The three (3) filter housings are pressurized during operation.
`Never open a housing or remove a hose during operation.
`Check if the hoses and tubes are water-tight and fit properly before starting
up the system.
`Wear protective gloves.
ATTENTION: For new or used units, the resin filter is removed from the unit and must be
inserted! See section 4.4.1.
To start the HydroPower RO, proceed as follows:
1. Connect the water inlet and water outlet hoses. Connect the
concentrate hose to the back of the unit. (see image 1)
2. Connect the power cord to the power supply.
3. Turn on the water supply.
4. Turn upper switch to the ”WORK” position. (see image 4)
5. Turn the lower switch from ”OFF > PURE” to work with pure water.
(see image 5)
6. The pre-filter housing must fill completely with water before 100%
efficiency can be achieved. (see image 6)
` If pump does not start due to low pressure, press the RESTART
button located on the back of the unit.
The excess air escapes through the water and concentrate outlets.
(see image 6a)
3The HydroPower RO is now ready for use.
When you select ”TAP BOOST”, unfiltered tap water with increased
pressure comes out to flush surfaces and remove stubborn dirt.

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HydroPower® RO
Startup
2
4
5
1
4.4.1 Starting up a HydroPower RO:
The pre-filter and the resin filter are not inserted in new or used units, as they must not come into
contact with the membrane care liquid.
Before using the resin filter, the membrane care liquid must be completely rinsed out.
1. Open the water line and start the HydroPower RO by setting the upper
switch to “RO FLUSH” and the lower switch to “PURE”. Rinse out the
membrane care liquid for about 15 minutes.
2. Turn off the HydroPower RO: turn the lower switch to “OFF”.
3. Disconnect the water supply.
4. Unscrew the resin housing and insert the resin filter catridge. Make sure
that the orientation is correct, the blue filter inlet must be on top!
5. Screw the housing back on using the filter key.
6. Unscrew the pre-filter housing and insert the filter cartridge.
7. Screw the housing back on with help of the included filter key.
8. Start the HydroPower RO by setting the upper switch to “WORK” and the
lower switch to “PURE”.
3The HydroPower RO is now ready for use.
4.5 Storage
If the unit is not used for more than 7 days, the membranes must be
protected in accordance with the storage instructions, (see section ”7.2.3
Membrane protection”). The HydroPower RO must be stored indoors.