AlphainnoTec LWC 60 + VenTower 300 User manual

We reserve the right to modify technical specifications without prior notice.

83030600bUK– Translation of the original instruction manual © ait-deutschland GmbH

Operating Manual

VENTOWER

2We reserve the right to modify technical specifications without prior notice.

83030600bUK © ait-deutschland GmbH

Please read rst

This operating manual provides important information

on the handling of the unit. It is an integral part of the

product and must be stored so that it is accessible in the

immediate vicinity of the unit. It must remain available

throughout the entire service life of the unit. It must be

handed over to subsequent owners or operators of the

unit.

Read the operating manual before working on or

operating the unit. This applies in particular to the

chapter on safety. Always follow all instructions

completely and without restrictions.

It is possible that this operating manual may contain

instructions that seem incomprehensible or unclear. In

the event of any questions or if any details are unclear,

contact the factory customer service department or the

manufacturer’s local partner.

Since this operating manual was written for several

different models of the unit, always comply with the

parameters for the respective model.

This operating manual is intended only for persons

assigned to work on or operate the unit. Treat all

constituent parts condentially. The information

contained herein is protected by copyright. No part of

this manual be reproduced, transmitted, copied, stored

in electronic data systems or translated into another

language, either wholly or in part, without the express

written permission of the manufacturer.

Symbols

The following symbols are used in the operating manual.

They have the following meaning:

Information for operators.

Information or instructions for qualied techni-

cians.

DANGER!

Indicates a direct impending danger

resulting in serious injuries or death.

WARNING!

Indicates a potentially dangerous situation

that could result in severe injuries or

death.

CAUTION!

Indicates a potentially dangerous situation

that could result in medium or slight

injuries.

ATTENTI ON.

Indicates a possibly dangerous situation, which

could result in property damage.

NOTICE.

Emphasised information.

€ENERGY SAVING TIP

Indicates suggestions that help to save energy,

raw materials and costs.

Reference to other sections of the operating

manual.

Reference to other documents of the manufac-

turer.

Contents

INFORMATION FOR OPERATORS AND

QUALIFIED SPECIALISTS

PLEASE READ FIRST..................................................................2

SYMBOLS .....................................................................................2

INTENDED USE..........................................................................4

DISCLAIMER................................................................................4

EC CONFORMITY .....................................................................4

SAFETY.........................................................................................4

CUSTOMER SERVICE ................................................................5

WARRANTY / GUARANTEE...................................................5

DISPOSAL ....................................................................................5

HOW THE VENTILATION MODULEWORKS....................6

AREA OF UTILISATION............................................................6

OP ER ATIO N................................................................................6

MAINTENANCE OF THE UNIT...............................................6

Filters......................................................................................6

Counterflow plate heat exchanger ....................................7

Fans .........................................................................................8

Condensate discharge ..........................................................8

Hot-water tank......................................................................9

SUMMER FUNCTION................................................................9

MALFUNCTIONS.....................................................................10

INSTRUCTIONS FOR QUALIFIED TECHNICIANS

SCOPE OF DELIVERY .............................................................. 11

Scope of KHZ air/water unit............................................. 11

Available unit variants ........................................................12

Possible unit variants..........................................................12

Accessories necessary for operation ..............................12

Additional accessories .......................................................13

INSTALL ATION ........................................................................13

Installation location............................................................13

Transport to installation location....................................13

Installation............................................................................15

DOMESTIC HOT WATER TANK INTEGRATION.............16

Integration in a KHZ-LW...................................................17

Integration VenTower with Brine/water Compact,

Water/water Compact, Ait/Water outdoor

installation (dual) ..........................................................17

INSTALLATION OF THE VENTILATIONDUCT...............18

Outdoor, supply air and exhaust air integration ...........18

Extract air integration (KHZ-LW only …) .....................18

ELECTRICAL CONNECTIONS .............................................19

CONTROL UNIT OF THE VENTILATIONAND

DOMESTIC HOT WATER MODULE..............................21

FLUSHING, FILLING AND BLEEDINGTHE SYSTEM.......22

Flushing, filling and bleeding the domestic hot water

tank .................................................................................22

INSULATING THE HYDRAULICCONNECTIONS ..........22

CONDENSATE DISCHARGE .................................................22

COMMISSIONING ...................................................................23

DISMANTLING .........................................................................23

TECHNICAL DATA / SCOPE OF DELIVERY ........................24

PERFORMANCE CURVES

Available external compression

VenTower_300.....................................................................26

VenTower_4 0 0 .....................................................................27

Fan characteristic curves

VenTower_300.....................................................................28

VenTower_4 0 0 .....................................................................29

VENTOWER ..............................................................................30

Dimensional drawings ........................................................30

Installation plan...................................................................31

KHZ AIR/WATER .....................................................................32

Dimensional drawings ........................................................32

Installation plan version 1 .................................................33

Installation plan version 2 .................................................34

Installation plan version 3 .................................................35

Installation plan version 4 .................................................36

Installation plan version 5 .................................................37

Installation plan version 6 .................................................38

TERMINAL DIAGRAM............................................................ 40

CIRCUIT DIAGRAM.................................................................41

APPENDIX

EC DECLARATION OF CONFORMITY..............................42

We reserve the right to modify technical specifications without prior notice.

83030600bUK – Translation of the original instruction manual © ait-deutschland GmbH

4We reserve the right to modify technical specifications without prior notice.

83030600bUK © ait-deutschland GmbH

Intended use

The unit is solely to be used for its intended use together

with the heat pump supplied with it. This means:

•for controlled apartment ventilation with heat

recovery,

•for domestic water heating.

The unit may be operated only within its technical

parameters.

“Technical data / Scope of delivery” overview,

page 24

The following are not permitted:

•use of greasy exhaust air, explosive gases, air

containing dust, adhesive aerosols;

•the connection of range hoods to the ventilation

system,

•the heating of any media other than domestic hot

water.

ATTENTI ON

Before using the unit, precise ventilation plan-

ning by a qualied person is necessary.

Disclaimer

The manufacturer is not liable for losses resulting from

any use of the unit which is not its intended use.

The manufacturer’s liability also expires:

•if work is carried out on the unit and its

components contrary to the instructions in this

operating manual.

•if work is improperly carried out on the unit and

its components.

•if work is carried out on the unit which is not

described in this operating manual, and this

work has not been explicitly approved by the

manufacturer in writing.

•if the unit or components in the unit have been

altered, modied or removed without the explicit

written consent of the manufacturer.

EC conformity

The unit bears the CE mark of conformity.

EC declarations of conformity, page 42

Safety

The unit is safe to operate for its intended use. The

construction and design of the unit conform to the

current state of the art standards, all relevant DIN/VDE

regulations and all relevant safety regulations.

Every person who performs work on the unit must

have read and understood the operating manual prior

to starting any work. This also applies if the respective

person has already worked with such a unit or a similar

unit or has been trained by the manufacturer.

Every person who performs work on the unit must

comply with the applicable accident prevention and

safety regulations. This applies in particular to the

wearing of personal safety gear.

DANGER!

Unit operates under high electric voltage!

DANGER!

Danger of fatal injury due to electric

current!

Electrical connections may be installed

only by qualied electricians.

Before opening the unit, disconnect the

system from the power supply and secure

it from being switched back on!

DANGER!

Qualied trained personnel only (qualied

heating, cooling system, refrigeration

or refrigerant technician or electrician)

may carry out work on the unit and its

components.

WARNING!

Observe safety labels on and in the unit.

ATTENTI ON

For safety reasons:

Never disconnect the unit from the power sup-

ply, unless the unit is being opened.

We reserve the right to modify technical specifications without prior notice.

83030600bUK – Translation of the original instruction manual © ait-deutschland GmbH

CAUTION!

Only switch on the unit if exhaust air,

supply air and outdoor air pipes have been

connected to the unit.

ATTENTI ON

Only switch on and operate the unit if exhaust

and outside air lters have been installed and the

domestic hot water tank is full.

DANGER!

If there are open replaces in the apart-

ment (tiled stoves, hearths, etc.), ensure

that when these replaces are in use the

combustion air ow is routed separate-

ly from the ventilation system (ask the re-

sponsible chimney sweep, as the regulati-

ons differ from region to region).

See note under under “Accessories” section,

page 12

NOTICE.

As air is blown in only in living rooms and bed-

rooms and air is extracted only from rooms with

odours and moisture, install ventilation grilles in

the connecting doors or walls or enlarge the air

gap under doors accordingly to ensure unhin-

dered airow.

Customer service

For technical information please contact a qualied

technician or the manufacturer’s local partner.

Operating instructions for your heat pump,

Appendix, customer service, addresses for service

Warranty / Guarantee

For warranty and guarantee conditions, please refer to

the purchase documents.

NOTICE.

Please contact your dealer concerning warran-

ties and guarantees.

Disposal

If taking the old unit out of service, comply with the

relevant local laws, guidelines, directives and standards

on the recovery, reuse, recycling and disposal of

resources and components of cooling units.

“Dismantling”, page 23

6We reserve the right to modify technical specifications without prior notice.

83030600bUK © ait-deutschland GmbH

How the ventilation

moduleworks

The heat recovery takes place via a highly efcient

counterow plate heat exchanger. Energy is removed

from the exhaust air. This is mainly dissipated in the

outdoor air in the plate heat exchanger and reaches

living rooms and bedrooms with the supply air.

The outdoor air must always be heated to temperatures

> – 5 °C before entering the ventilation module. The

air is either heated by a so-called geothermal heat

exchanger or by an electric heating coil.

Accessories necessary for function, page 12

Both the exhaust air and the outdoor air are fed though

a macro fold lter where it is ltered.

The two fans are each arranged as induced draught fans

across the air/air counterow plate heat exchanger.

Area of utilisation

Taking into account the ambient conditions, use limits

and the relevant regulations, each VenTower (VTS), each

“Comfort” central building services control (KHZ) can

be used in new or existing heating systems.

“Technical data / scope of delivery” overview,

page 24

Operation

By opting to install a heat pump or ventilation system

you will be making a contribution for many years to come

to spare the environment through low emissions and less

use of primary energy.

You can operate and control the heat pump system

with the control element of the heating and heat pump

regulator.

NOTICE.

Ensure correct controller settings.

Operating manual of the heating and heat pump

regulator.

Maintenance of the unit

ATTENTI ON

Keep the air inlet and air outlet openings in the

external wall free of leaves and snow.

FILTERS

Regularly inspect the outside air and the exhaust air lter

for dirt (monthly or more often if necessary, depending

on dirt and dust in the outside air).

A default interval of four months is set in the heating

and heat pump controller, until a lter replacement is

prompted.

ATTENTI ON

Use only original accessories from the manufac-

turer of the unit.

Proceed as follows:

Switch off the unit and then open the upward

swivelling / hinged door of the ventilation and

domestic hot water module…

•

To do this, undo the quick-release screws of the

swivelling door of the ventilation and domestic hot

water module. Turn through 90° to the left…

•

Fold the swivelling door of the ventilation and

domestic hot water module upwards…

We reserve the right to modify technical specifications without prior notice.

83030600bUK – Translation of the original instruction manual © ait-deutschland GmbH

Pull out the two lters on the top right and left-

hand side of the heat exchanger, one after the other,

from the front, check each for dirt and if necessary

replace…

Push the lters into the positions provided in the

unit, fold down the swivelling door of the ventilation

and domestic hot water module, tighten the quick-

release screws and switch unit back on again.

ATTENTI ON

Ensure the lters are installed in the correct po-

sition. To this end, follow the instructions on the

lter cassette.

The actual lter has a pre-lter upstream of it, as more

dirt is trapped by the lter during and immediately after

the construction phase. 8 weeks after moving in and

starting up the ventilation for the rst time, remove

these pre-lters and dispose of in an environmentally

friendly way.

COUNTERFLOW PLATE HEAT EXCHANGER

Clean the counterow plate heat exchanger once a year.

Proceed as follows:

Switch off the unit and then open the upward

swivelling / hinged door of the ventilation and

domestic hot water module…

Maintenance of the unit, lter, , page 6

Pull out the two lters on the top right and left-

hand side of the heat exchanger, one after the other,

from the front…

Then pull the moulded part above the heat

exchanger out of the unit from the front…

8We reserve the right to modify technical specifications without prior notice.

83030600bUK © ait-deutschland GmbH

Then lift the heat exchanger up slightly and carefully

pull it out of the unit from the front…

ATTENTI ON

Do not bend or damage the plates of the heat

exchanger when pulling it out or during the sub-

sequent cleaning.

Straighten any plates accidentally bent before

pushing the cleaned heat exchanger back into

the unit.

Clean heat exchanger with hot water and

proprietary washing up liquid and leave to dry in the

air outside the unit…

ATTENTI ON

Do not use solvents or acidic cleaning agents.

NOTICE.

We recommend using a shower head to clean

the heat exchanger.

After cleaning and drying the heat exchanger, push

it back into the unit. Then push the moulded part

and lters into the unit…

ATTENTI ON

Ensure the lters are installed in the correct po-

sition. To this end, follow the instructions on the

lter cassette.

Fold down the swivelling door of the ventilation

and domestic hot water module, tighten the quick-

release screws and switch unit back on again.

FANS

Once a year, have the fans checked by qualied personnel

and if necessary have them cleaned.

If the air-handling capacity of the unit no longer seems

to be sufcient, check the two lters at the top right and

left-hand side of the heat exchanger for dirt rst and if

necessary replace.

NOTICE.

If a geothermal heat exchanger and/or a de-

froster heating is used in conjunction with the

ventilation module, check the lters of the rele-

vant units for dirt too and if necessary replace.

If changing the lter(s) does not result in any

improvement in the unit’s air-handling capacity, check

all the air inlets and outlets for blockages or damage

(cracks). If necessary, remove all obstructions in the air

volume ow.

In addition, check whether the supply air and exhaust

valves are free of obstructions and that their original

settings are unchanged.

CONDENSATE DISCHARGE

ATTENTI ON

Regularly check to ensure that the condensate

can drain out of the unit unobstructed. To do

this, regularly check the condensate tray in the

unit and the condensate discharge for dirt /

blockages and if necessary clean.

We reserve the right to modify technical specifications without prior notice.

HOT-WATER TANK

The domestic hot water tank of the ventilation and

domestic hot water module should be cleaned once a

year by qualied personnel. To do this, rst drain the

domestic hot water tank of the ventilation and domestic

hot water module.

Switch off the unit and then open the upward

swivelling / hinged door of the ventilation and

domestic hot water module…

Maintenance of the unit, lter, , page 6

Unscrew the front facing panel of the ventilation

and domestic hot water module…

Drain the domestic hot water tank through the valve

mounted on site at the cold water connection…

After completely draining the tank, remove the

foam cover above the service opening of the

domestic hot water tank, unscrew the ange cover

of the service opening and clean the domestic hot

water tank…

1 Electrical switch cabinet, ventilation

and domestic hot water module

2 Service opening, domestic hot water tank

(shown here without foam cover)

3 External current anode (under foam cover)

Then tightly close the ange cover again, insert the

foam cover and replace the front panel back on the

ventilation and domestic hot water module…

Fold down the swivelling door of the ventilation

and domestic hot water module, tighten the quick-

release screws and switch unit back on again...

Rell the domestic hot water tank of the ventilation

and domestic hot water module.

Check the safety valve (provided by customer) for the

hot water tank at regular intervals. Since an external

current anode is built in, the anode requires no

maintenance.

It is a good idea to have a maintenance contract with a

heating installation company. The company will conduct

all required maintenance at regular intervals.

Summer function

NOTICE.

The summer function can only be used in con-

junction with a geothermal heat exchanger (pro-

vided by the customer).

To prevent the supply air from being blown into the

rooms preheated during the hot season, you must

uncouple the heat exchanger from the air ow.

Switch off the unit and then open the upward

swivelling / hinged door of the ventilation and

domestic hot water module and remove the two

lters from the unit…

Maintenance of the unit, lter, , page 6

Pull out the two lters on the top right and left-

hand side of the heat exchanger and pull out the

moulded part above the heat exchanger from the

front of the unit…

Maintenance of the unit, counter ow heat

exchanger, – , page 7

Remove the small triangular piece from the moulded

part…

1 “Large” triangular piece

2 “Small” triangular piece

10 We reserve the right to modify technical specifications without prior notice.

NOTICE.

Store the “small” triangular piece in a safe dry

place until the end of use of the summer func-

tion.

Push the “large” triangular piece only back into the

unit…

Then push the left and right-hand lters back into

the unit…

ATTENTI ON

Ensure the lters are installed in the correct po-

sition.

Push the partition (red plastic panel) supplied with

the ventilation and domestic hot water module into

the unit, under the right-hand lter (= outside air

lter)…

The partition prevents the outside air from owing

through the heat exchanger during use of the

summer function…

Fold down the swivelling door of the ventilation

and domestic hot water module, tighten the quick-

release screws and switch unit back on again.

NOTICE.

Depending on your subjective feelings, you can

cancel the summer function at any time during

the transition period in the spring or autumn

by removing the partition from the unit and t-

ting the “small” triangular piece back into the

moulded part.

We recommend not activating the actual heating

mode via the heat pump until the supply air can

no longer acquire the required heat through op-

eration of the ventilation module alone.

NOTICE.

After removing the partition, store it always to

hand near the unit.

Malfunctions

In case of malfunctions, you can read out the cause of

the fault from the diagnostics program of the heating and

heat pump controller.

Operating manual for the heating and heat pump

regulator.

DANGER!

Only customer service personnel

authorised by the manufacturer may carry

out service and repair work on the unit’s

components.

Operating instructions for your heat pump,

Appendix, customer service, addresses for service

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