Viessmann AQUAHOME 20-N, AQUAHOME 30-N Installation And Operation Manual

Installation and operations VIESMANN manual

for the device User

Water softening station

AQUAHOME 20-N / 30-N •

1 / 2012 Please retain this manual!

Important notice:

The price of this device includes free of charge commissioning of the device to be performed by an authorised service provider. Transportation cost of a service technician is not included in the offer of free of charge commissioning of the device.

Table of contents

Basic data ................................................................................................................................................................................... 4

Section I ...................................................................................................................................................................................... 1

1. Hydraulic assembly ............................................................................................................................................................ 1

A. Safety information ............................................................................................................................................... 1

B. Unpacking of water softener ................................................................................................................................ 1

C. Checking hydraulic fittings at installation site ....................................................................................................... 1

D. Selecting installation site for the device ............................................................................................................... 1

E. Materials ............................................................................................................................................................. 1

F. Regeneration washings discharge connection ..................................................................................................... 1

2. Programming the control panels ........................................................................................................................................ 1

A. Programming the control panel of Aquahome 20-N water softener ...................................................................... 1

B. Programming the control panel of Aquahome 30-N water softener........................................................................... 1

C. Filling the brine tank with salt .............................................................................................................................. 1

D. Setting the desired water hardness number of the by - pass valve ...................................................................... 0

Section II ..................................................................................................................................................................................... 0

1. Control panel functions ...................................................................................................................................................... 0

A. Manual activation of regeneration process................................................................................................................... 0

B. Additional functions featured by Aquahome 20-N ......................................................................................................... 1

C. Additional functions featured by Aquahome 30-N ......................................................................................................... 2

D. Basic diagnostics data.................................................................................................................................................. 2

E. Protective filtration (cleansing) ...................................................................................................................................... 1

F. Power outage ............................................................................................................................................................... 1

G. Error codes .................................................................................................................................................................. 1

Section III .................................................................................................................................................................................... 0

1. Service (maintenance) activities ......................................................................................................................................... 0

A. Refilling salt in brine tank .................................................................................................................................... 0

B. Salt bridges (concrements) ................................................................................................................................. 0

C. Control of hardness of water treated by the water softener ................................................................ ........................... 1

D. Control of water pressure in the installation ....................................................................................................................... 0

E. Mechanical filter operation .................................................................................................................................. 0

F. Control of current hour clock indications .............................................................................................................. 0

2. Automatic disinfection of the medium featured by Aquahome 30-N .................................................................................... 0

3. Operational recommendations ........................................................................................................................................... 1

4. Operation logbook .............................................................................................................................................................. 1

5. Troubleshooting table ......................................................................................................................................................... 1

Section IV ................................................................................................................................................................................... 1

1. Technical specifications and dimensions ............................................................................................................................ 1

Section V .................................................................................................................................................................................... 2

1. Control activities prior to contacting a service provider ....................................................................................................... 2

2. Warranty card .................................................................................................................................................................... 1

3. Device commissioning protocol (original copy) - for the User ............................................................................................. 1

4. Device commissioning protocol (copy no. 1) - for the party performing commissioning of the device .................................. 3

5. Device commissioning protocol (copy no. 2) - for the Supplier or Manufacturer .................................................................. 4

Section VI ................................................................................................................................................................................... 5

1. Components drawings ....................................................................................................................................................... 5

Impact of washings from water softener regeneration to municipal sewage systems and home sewage treatment

plants. ........................................................................................................................................................................................ 9

Conditions of Technical Inspection of operation of pressure devices, fitted at ion exchange water softener of

AQUAHOME type. ................................................................................................................................................................... 10

Tip!

Before installing the device, please read carefully this instruction and comply with all safety rules relating to commissioning and operation of the device. In case of any questions please inquire with the service team of your supplier or with the manufacturer of the device.

Basic data

Prior to connecting, commissioning and operation of the device, please fill in the following information:

MODEL NO.*

SERIAL NO.*

*Information on model number and serial number can be found on the label, accessible after lifting of the brine tank cover.

Commissioning date

Water hardness

dH (German water hardness scale)

Water pressure

bar

Section I

1. Hydraulic assembly

A. Safety information

 Before installing and

commissioning of the water softener,, please read carefully this instruction Compliance with the guidelines provided in the instruction will ensure safe and full use of the device you acquired. Failure to comply with this instruction may result in material and health damage.

 Water softener removes from

water calcium and magnesium cations responsible for water hardness and it can also remove divalent (bivalent) iron compounds dissolved in water at the acceptable concentration up to 0.7 mg Fe per litre. The device is not capable of removing iron in any other form (such as organic form) neither is it capable of improving the taste and smell of water.

 Ambient temperature, suitable

for water softener operation, must not be lower than 4

C and

higher than 40

 Maximum temperature of

water, that can be softened by

the device, must not be higher than 49

 The device can be supplied

together with a mechanical filter (optional), which should be installed on the water pipe supplying water to the softener, in accordance with the schematic diagram shown in figure 1.

 Operating voltage of the device is

24 V. Please use the transformer that is supplied together with the device.

 In case of damage of the power

cable the transformer must be immediately disconnected. Prior to reconnecting the transformer, damaged power cable must be replaced or repaired.

 Prior to removing the outer valve

cover, power supply of the device must be unconditionally disconnected.

 Water softener must not be used

for softening of water with abnormal physical and chemical as well as bacteriological parameters.

B. Unpacking of water softener

The first step is to remove all components of the device from the cardboard box, remove protection styrofoam and adhesive tapes. The device should be checked for possible damages occurring during transportation. In case of any damage the device supplier must be notified immediately. The device must be removed from the packaging with outmost care. The device is delivered as assembled, ready for use unit and therefore is rather heavy. When moved the device should be supported

“at the bottom” and must not be dragged

across the floor. Do not turn the device upside down, drop the device or put it on edgy or sharp surfaces.

C. Checking hydraulic fittings at installation site

 Tap water pressure In order for the water softener to function properly the pressure in the water supply network must not be lower than 1.4 bar and higher than 8.0 bars. If water pressure is below the former, pressure raising pressure tank must be used; if water pressure exceeds the maximum value, pressure regulator (pressure reducing valve) must be installed.

 Important notice! If during daytime water pressure is high it is very likely that during night

time it will exceed the maximum value of 8.0 bars. In such case pressure regulator (pressure reducing valve) is recommended. It is recommended to fit pressure gauges on the installation, in accordance with the schematic diagram (figure 1), in order to control operating water pressure in the installation.

 Water flow rate In order for the water softener to function properly the minimum water flow rate at the water inlet should be

11.0 litres per minute.

D. Selecting installation site for the device

 The water softener should be

located as close as possible to hydrophore (in case of supplying water from private well [intake]) or water meter measuring the whole water in the household (in case of supplying the household with tap water). The device should be located in the immediate vicinity of the outlet drain (floor drain, stub pipe, laundry tub).

 Installing the device upstream

from water heater (or boiler unit), make sure that the temperature of water at the connection point does not exceed 49

C. It is recommended that a back - pressure valve is fitted between the water softener and the water heater (or boiler unit) in order to prevent hot water backflow to the water softener. Too hot water may cause damage of control valve elements as well as the ionexchange resin.

 Make sure that the valve for water

used outside of the house (such as water used for garden watering) is installed upstream from the water softener. Softening water that will be used outside of the house is not cost effective (unless necessary).

 Installation site of the water softener

must be prevented from being exposed to freezing. If frozen, the water softener will be damaged. Any damage resulting from freezing is not covered by the warranty.

 The water softener is powered with

24 V. Direct plug - in transformer and power cable are provided along with the device. Earthed power socket for the water softener should be located within the immediate vicinity of the device and should be protected against rain and subzero temperatures. The water must be always connected to the power supply source; the power socket must not be fitted with a controller that could be incidentally switched off.

E. Materials

Before commencing installation of the device, it is important to check relevant connection of inflow and outflow of water to the water softener. Water

“inflow” connection is located on the right side of

the device and water “outflow” connection on its

left side, when facing the device (figure 2).

Descriptions in English: - (above vertical hose in figure 1) -> raw water; garden watering water, shut-off valve; shut – off valve, pressure gauge; preliminary filter (option); pressure gauge; shut – off valve; pressure gauge; shut – off valve; check valve; softened water -> (below vertical hose in figure 1) sampling valve; washings drain (discharge); device control valve; sampling valve; device

casing

Hydraulic connection of the water softener should be implemented in accordance with a specimen connection diagram shown by figure 1. The water softener is fitted with a by - pass valve with fitting elements as well as a washings discharge hose. The water softener may also be fitted with a mechanical filter (as an option). Hydraulic installation accessories such as valves, pressure gauges, water sampling valve etc. are not, as standard, supplied with the device and should be provided by the person implementing the installation.

Figure

F. Regeneration washings discharge connection

1. Regeneration washings discharge connection.

 Use the hose supplied together

with the device to connect the installation of washings discharge from the water softener. Place one end of the hose on the washings discharge stub pipe, located at the rear part of the control head, and place the other end of the hose in the outlet drain (floor drain, stub pipe, laundry tub; figure 2). Make sure to provide for at least 4 cm air gap between the end of the hose and the outlet drain. This gap is needed to prevent backflow of sewer water into the water softener.

 Install the hose in a manner

preventing its movement during intense flow of washings. The hose must not be bent, twisted or punctured.

 The hose must be located below

the outflow stub pipe from the control valve.

2. Installation of flow elbow pipe of the brine tank.

 place the rubber connecting piece

in the hole of brine tank (from the bottom) in such way that part of the connecting piece is located inside and part outside of the brine tank (figure 2).

 insert thick end of the elbow pipe

to the connection piece from the outer side of the brine tank

 discharge hose - connection point

diameter 3/8”, outer thread (not

supplied with the device) - can be connected in the way identical to the one referred in point 1.

 Important notice:

- overflow hose of the brine tank

serves only as additional safety feature in case when filling of the brine tank with water is not ended in accordance to the program.

- no part on the overflow hose can be placed above the outflow level.

- the overflow hose of the brine tank must not be connected to the outflow stub pipe of the control valve (see point 1 above).

Figure

Descriptions in English: hard water (for example used for watering the garden); hard water; main water pipe; softened water; softening head; (left of softener housing) electric power supply, connection to control panel, washings elbow, washings discharge hose *never connect together the washings discharge hose and overflow hose, (right of softener housing) overflow elbow, overflow hose, 4 dm gap, drain hole, clips, inlet, outlet, O’ring, pipe or hose, by-pass valve with premixing feature

2. Programming the control panels  Important notice!

It is recommended that the water softener is commissioned by an authorised service provider. Commissioning of the device is included in its price.

A. Programming the control panel of Aquahome 20-N water softener

Descriptions in English: display screen, LED indicating low salt level, “up” button, “down“ button, regeneration button (tonight – press; immediately (hold for 3 seconds), set/menu button

 Upon plugging the transformer

into a power socket the display screen will show a model code of a given model of the device (u20) for a few seconds as well as the software version (such as J3.5 or similar).

 Then the display screen will show

the SET TIME caption as well as flashing 12:00.

 When the display screen shows --

--, press ▲ or ▼ buttons until caption u20 appears on the display screen. Disconnect and

then reconnect the power supply to the water softener to confirm correctness of the code entered. If the code appearing on the display screen is different than expected, please contact the service team of your supplier.

 Audio signaller (BIP): the signaller

will activate each time the button is pressed. Single audio signal indicates one change on the display screen. Series of audio signals indicates wrong button being pushed and the need to push another button.

Figure

Setting Time

In order to set time, press ▲button to move ahead or ▼ button to set time back.

If a twelve-hour clock is set, the “ante

meridiem” (“AM”) caption will appear on

the display screen for the after midnight part of the clock - hours between 0

and 1159 and the "post meridiem” (“PM”) caption for the after midday part of the clock - hour between 1200 and 2359.

With each pressing of one of the ▲ or

▼buttons the time will increase or decrease with one minute increments. If any of the buttons remains pressed the time will change at a faster rate.

Programming water hardness

Single press of the SET button (in Set Time mode) will move programming to the SET HARDNESS mode (Water hardness); the value flashing on the display screen should be 25 (default value).

Now code the hardness of used water in grains per American gallon - gpg (water hardness expressed in, for example, odH - in accordance with the German scale, should be multiplied by 1.036). Water hardness can be expressed in different units. Below is the table showing water hardness units most commonly used in the country:

Hardness unit

mg CaCO3/l

of French

degree of water

hardness

dH German

degree of water

hardness

gpg

1 mg CaCO3/l

0,1

0.056

0.058

1 French degree of water hardness (of)

10 1 0.56

0.58

1German degree of water hardness (on)

17.8

1.78

1.036 1 gpg

17.2

1.72

0.96

 In case when the results of the

physical and chemical analysis are not available, water hardness information should be obtained from local water supply company or from relevant regional office of the State Sanitary Inspectorate or it should be self determined with the use of a test which can be obtained from the vendor. Please enter the results obtained on page 4 of this manual as well as on a separate label, which should be placed under the brine tank cover with the use of adhesive tape.

 If raw water contains iron in

concentration exceeding 0.2 mg/l

please use adjusted water hardness instead of water hardness. The adjusted water hardness is calculated with the following formula:

Adjusted water hardness [of] = water hardness [of] + 4.8  iron content in Fe mg/l

 Enter the water hardness number

or adjusted water hardness number (expressed in gpg) to the water softener software as operational water hardness. In order to enter the water hardness number press ▲ or ▼ button until the relevant number appears on the display screen. Pressing the ▼ button will reduce the displayed

water hardness number by 1. Pressing the ▲ button will increase the displayed water hardness number to the maximum water hardness number for given device. Between water hardness numbers of 1 and 25, each pressing of ▲ or ▼ buttons will respectively increase or reduce

water hardness number by increments of one unit. Between water hardness numbers of 25 and the maximum water hardness number, the increments are 5 units. If the button remains pressed, the number will change twice within one second.

Setting regeneration hour

 Single press of the SET button (in

Set Water Hardness mode) will move programming to the SET RECHATHE TIME mode; the value flashing on the display screen should be 02:00 (2 a.m.) as default value.

 If this setting is confirmed (by

pressing the “SET” button), the

water softener will activate the regeneration process at 2 a.m. Due to water consumption reduced to minimum at night, 2:00 a.m. is the optimum regeneration hour.

 In order to change the

regeneration hour settings, press the ▲ or ▼ buttons to set new regeneration process start time. If a twelve-hour clock is set, please

take note that the “ante meridiem” (“AM”) part of the clock indicates

hours between 00

and 11

and

the "post meridiem” (“PM”) part of

the clock indicates hour between 1200 and 23

. Pressing the “SET”

button will confirm the changes introduced.

 With each pressing of one of

the ▲ or ▼ buttons the time will

increase or decrease with one unit increments. If the button remains pressed, the time will change by two units within one second.

Setting salt level

Single press of the SET button (in Set Regeneration Hour mode) will move programming to the SET SALT LEVEL mode. Control panel features the system of salt level control in the brine tank. In order to set the system of salt level control in the brine tank proceed as follows:

 Open the brine tank cover for visual inspection

of the actual salt level.

 The salt level indicator, on the brinewell inside

the brine tank features the range between 0 and 8. Take note of the actual salt level.

Press ▲ or ▼ button to set the actual salt level. In the example provided, the salt level is 4. LED indicating low level of salt will light up when the salt level is 2 or below. Prevent the salt level in the brine tak to drop below that level.

 Important notice!

Brine - well

Label (sticker)

Salt level

Make sure to set the actual salt level each time the brine tank is refilled with salt.

In order to cancel the salt level control feature, press ▲ or ▼ button until the display screen shows OFF. Pressing the “SET” button will confirm the changes introduced.

The description of the remaining functions available at the control panel is provided in section II.

B. Programming the control panel of Aquahome 30-N water softener

Descriptions in English: display screen, current salt level button, brine tank illumination button “up” button, menu selection button; “down“ button, regeneration button (tonight – press; immediately (hold for 3 seconds), set/menu button

 Upon plugging the transformer

into a power socket the display screen will show a model code of a given model of the device (u30) for a few seconds as well as the test number (such as J30 or similar).

 Then the display screen will show

the PRESET TIME caption as well as flashing 12:00.

 When the display screen shows --

--, press ▲ or ▼ buttons until caption u30 appears on the display screen.

Then press the “SET” button, the display screen will show PRESENT TIME caption as well as flashing 12:00.

 Audio signaller (BIP): the signaller

Setting Time

Figure

In order to set time, press ▲button to move ahead or ▼ button to set time back.

If a twelve-hour clock is set, the “ante

meridiem” (“AM”) caption will appear on

the display screen for the after midnight part of the clock - hours between 0

and 1159 and the "post meridiem” (“PM”) caption for the after midday part of the clock - hour between 1200 and 2359.

With each pressing of one of the ▲ or ▼

buttons the time will increase or decrease with one minute increments. If any of the buttons remains pressed the time will change at a faster rate.

Programming water hardness

Single press of the SET button (in Set Time mode) will move programming to the SET HARDNESS mode (Water hardness); the value flashing on the display screen should be 25 (default value).

Hardness unit

mg CaCO3/l

of French

degree of water

hardness

dH German

degree of water

hardness

gpg

1 mg CaCO3/l

0,1

0.056

0.058

1 French degree of water hardness (of)

0.56

0.58

1German degree of water hardness (on)

17.8

1.78

1.036 1 gpg

17.2

1.72

0.96

 In case when the results of the

 If raw water contains iron in

concentration exceeding 0.2 mg/l please use adjusted water

hardness instead of water hardness. The adjusted water hardness is calculated with the following formula:

Adjusted water hardness [of] = water hardness [of] + 4.8  iron content in Fe mg/l

 Enter the water hardness number

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Viessmann AQUAHOME 20-N, AQUAHOME 30-N Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual