Air/Water Heat Pumps Indoor Installation. Operating Manual. VenTower dUK Translation into English of the original German operating manual

Transcription

1 Air/Water Heat Pumps Indoor Installation Operating Manual VenTower UK dUK Translation into English of the original German operating manual

2 Please read first 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 confidentially. 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 uers. Information or instructions for qualified technicians. 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.. 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 manufacturer. Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

3 Contents INFORMATION FOR USERS AND QUALIFIED PERSONNEL PLEASE READ FIRST... SYMBOLS... INTENDED USE...4 DISCLAIMER...4 EC CONFORMITY...4 SAFETY...4 CUSTOMER SERVICE...5 WARRANTY / GUARANTEE...5 DISPOSAL...5 HOW THE VENTILATION MODULE WORKS...6 OPERATION...6 MAINTENANCE OF THE UNIT...6 Filters...6 Counterflow plate heat exchanger...7 Fans...8 Condensate discharge...8 Hot-water tank...8 SUMMER FUNCTION...9 MALFUNCTIONS...0 INSTRUCTIONS FOR QUALIFIED TECHNICIANS SCOPE OF DELIVERY... Scope of KHZ air/water unit... Available unit variants... ACCESSORIES... Accessories necessary for operation... Additional accessories... INSTALLATION... Installation location... Transport to installation location... Installation...4 DOMESTIC HOT WATER TANK INTEGRATION...5 Integration in a KHZ-LW...5 INSTALLATION OF THE VENTILATION DUCT...6 Outdoor, supply air and exhaust air integration...6 Extract air integration (KHZ-LW only)...7 ELECTRICAL CONNECTIONS...8 CONTROL UNIT OF THE VENTILATION AND DOMESTIC HOT WATER MODULE...0 FLUSHING, FILLING AND BLEEDING THE SYSTEM...0 Flushing, filling and bleeding the domestic hot water tank...0 INSULATING THE HYDRAULIC CONNECTIONS...0 CONDENSATE DISCHARGE...0 COMMISSIONING... DISMANTLING... TECHNICAL DATA / SCOPE OF DELIVERY... PERFORMANCE CURVES Available external compression VenTower_ VenTower_ Fan characteristic curves VenTower_ VenTower_ DIMENSIONAL DRAWINGS AND INSTALLATION PLANS Dimensional drawings...8 Installation plans...9 HYDRAULIC INTEGRATION Default...5 Legend Hydraulic integration...6 TERMINAL DIAGRAM...7 CIRCUIT DIAGRAM...8 EC DECLARATION OF CONFORMITY...9 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

4 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 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. Before using the unit, precise ventilation planning by a qualified 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, modified or removed without the explicit written consent of the manufacturer. EC conformity The unit bears the CE mark of conformity. Safety EC declarations of conformity, page 9 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! Danger of fatal injury due to electric current! Electrical connections may be installed only by qualified electricians. Before opening the unit, disconnect the system from the power supply and secure it from being switched back on! WARNING! Qualified trained personnel only (qualified heating, cooling system, refrigeration or refrigerant technician or electrician) may carry out work on the unit and its components. For safety reasons: Never disconnect the unit from the power supply, unless the unit is being opened. CAUTION! Only switch on the unit if exhaust air, supply air and outdoor air pipes have been connected to the unit. 4 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

5 Only switch on and operate the unit if exhaust and outside air filters have been installed and the domestic hot water tank is full. DANGER! If there are open fireplaces in the apartment (tiled stoves, hearths, etc.), ensure that when these fireplaces are in use the combustion air flow is routed separately from the ventilation system (ask the responsible chimney sweep, as the regulations differ from region to region). See note under under Accessories section, page NOTICE. As air is blown in only in living rooms and bedrooms 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 unhindered airflow. Customer service For technical assistance, please contact your qualified technician or the manufacturer s local service partner. For a current list and additional partners of the manufacturer, please visit DE: EU: Warranty / Guarantee For warranty and guarantee conditions, please refer to the purchase documents. NOTICE. Please contact your dealer concerning warranties 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 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 5

6 How the ventilation module works The heat recovery takes place via a highly efficient counterflow 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 Both the exhaust air and the outdoor air are fed though a macro fold filter where it is filtered. The two fans are each arranged as induced draught fans across the air/air counterflow plate heat exchanger. Maintenance of the unit FILTERS Keep the air inlet and air outlet openings in the external wall free of leaves and snow. Regularly inspect the outside air and the exhaust air filter 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 filter replacement is prompted. Use only original accessories from the manufacturer of the unit. 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. 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 NOTICE. Ensure correct controller settings. Operating manual of the heating and heat pump regulator Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

7 Fold the swivelling door of the ventilation and domestic hot water module upwards Pull out the two filters on the top right and lefthand side of the heat exchanger, one after the other, from the front, check each for dirt and if necessary replace COUNTERFLOW PLATE HEAT EXCHANGER Clean the counterflow 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, filter,, page 6 Pull out the two filters on the top right and lefthand side of the heat exchanger, one after the other, from the front Push the filters into the positions provided in the unit, fold down the swivelling door of the ventilation and domestic hot water module, tighten the quickrelease screws and switch unit back on again. Then pull the moulded part above the heat exchanger out of the unit from the front Ensure the filters are installed in the correct position. To this end, follow the instructions on the filter cassette. The actual filter has a pre-filter upstream of it, as more dirt is trapped by the filter during and immediately after the construction phase. 8 weeks after moving in and starting up the ventilation for the first time, remove these pre-filters and dispose of in an environmentally friendly way. Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 7

8 Then lift the heat exchanger up slightly and carefully pull it out of the unit from the front FANS Once a year, have the fans checked by qualified personnel and if necessary have them cleaned. If the air-handling capacity of the unit no longer seems to be sufficient, check the two filters at the top right and left-hand side of the heat exchanger for dirt first and if necessary replace. NOTICE. If a geothermal heat exchanger and/or a defroster heating is used in conjunction with the ventilation module, check the filters of the relevant units for dirt too and if necessary replace. Do not bend or damage the plates of the heat exchanger when pulling it out or during the subsequent 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 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 filters into the unit Ensure the filters are installed in the correct position. To this end, follow the instructions on the filter cassette. Fold down the swivelling door of the ventilation and domestic hot water module, tighten the quickrelease screws and switch unit back on again. If changing the filter(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 flow. In addition, check whether the supply air and exhaust valves are free of obstructions and that their original settings are unchanged. CONDENSATE DISCHARGE 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. Do not bend the condensation hose and fasten it securely. Do not insert the condensate hose in the siphon = visible distance. HOT-WATER TANK The domestic hot water tank of the ventilation and domestic hot water module should be cleaned once a year by qualified personnel. To do this, first 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, filter,, page 6 8 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

9 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 flange cover of the service opening and clean the domestic hot water tank Summer function NOTICE. The summer function can only be used in conjunction with a geothermal heat exchanger (provided 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 flow. Switch off the unit and then open the upward swivelling / hinged door of the ventilation and domestic hot water module and remove the two filters from the unit Maintenance of the unit, filter,, page 6 Pull out the two filters on the top right and lefthand 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 flow heat exchanger,, page 7 Remove the small triangular piece from the moulded part Electrical switch cabinet, ventilation and domestic hot water module Service opening, domestic hot water tank (shown here under foam cover) External current anode (under foam cover) Then tightly close the flange 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 quickrelease screws and switch unit back on again... Refill 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. Large triangular piece Small triangular piece NOTICE. Store the small triangular piece in a safe dry place until the end of use of the summer function. Push the large triangular piece only back into the unit Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 9

10 Then push the left and right-hand filters back into the unit Ensure the filters are installed in the correct position. Push the partition (red plastic panel) supplied with the ventilation and domestic hot water module into the unit, under the right-hand filter (= outside air filter) 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. WARNING! 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 The partition prevents the outside air from flowing 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 quickrelease 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 fitting 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 operation of the ventilation module alone. NOTICE. After removing the partition, store it always to hand near the unit. 0 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

11 Scope of delivery Exemplary arrangement of the Ventilation and domestic hot water module scope of delivery: NOTICE. The corresponding Compact air/water or brine/water heat pump is delivered on a separate pallet as a further part of the scope of delivery for the Comfort central building services control (KHZ). The ventilation and domestic hot water module and the Compact air/water or Compact brine/water heat pump delivered on a separate pallet together form the central building services control (KHZ). SCOPE OF KHZ AIR/WATER UNIT VenTower ventilation and domestic hot water module with integrated domestic hot water tank (enamelled to DIN 475, insulated on the outside and including external current anode) VTL for KHZ-LW only: Connection set for hydraulic integration of the domestic hot water tank (in the extra box) Connecting sleeve and intake cover for extract air integration (in the extra box) Complete the following first: VenTower VTL ventilation and domestic hot water module plus Compact air/water heat pump = KHZ air/water AVAILABLE UNIT VARIANTS KHZ AIR/WATER: LWC 60 + VenTower_00 = KHZ-LW 60/00 LWC 60 + VenTower_400 = KHZ-LW 60/400 LWC 80 + VenTower_400 = KHZ-LW 80/400 Inspect delivery for outwardly visible signs of damage. Check scope of delivery for completeness Any defects or incorrect deliveries must be claimed immediately. Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

12 Accessories ACCESSORIES NECESSARY FOR OPERATION Use only original accessories from the manufacturer of the unit. Replacement filter (accessories for additional cost) for the air inlet cover. Replacement filter (accessories for additional cost) for the defroster heating. Room remote adjuster (accessories for additional cost) for increasing or lowering the set temperature by up to 5 K and with forced ventilation function. Air duct system 700 (accessory which must be purchased; required for KHZ-LW only) The individual components of the air duct system 700 (with air duct accessories) must be ordered as an additional item depending on the planned installation of the central building services control for air/water. KHZ air/water installation plans, from page 9 Defroster heating (accessories for additional cost) for preheating the outdoor air. The defroster heating is absolutely necessary for systems without geothermal heat exchanger! NOTICE If a fireplace (stove) is to be set up, the local master chimney sweep (qualified chimney sweep, stove inspector or equivalent person) must be consulted in advance on whether and what safety devices are required for simultaneous operation of the air-conditioning system and a fireplace! ADDITIONAL ACCESSORIES Use only original accessories from the manufacturer of the unit. Installation Observe the following when performing all work: NOTICE. Always comply with applicable accident prevention regulations, statutory regulations, ordinances and directives. NOTICE. Observe the sound levels of the respective model. Technical data / Scope of delivery overview, Sound section, page INSTALLATION LOCATION CAUTION. Only install the unit indoors. The installation area must be frost-free and dry. It must also fulfil the regulations which apply locally. Dimensional drawing and installation plan for the respective unit type, from page 8 Pollen filter (filter class F5) (accessories for additional cost) for the outside air intake area as a substitute for the standard filter. Standard filter (filter class G4) (accessories for additional cost) as replacement for the filter(s), replaced as standard filters in case of servicing. Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

13 TRANSPORT TO INSTALLATION LOCATION Always comply with the following safety information during transport: DANGER! Several people are required to transport the unit. Do not underestimate the weight of the unit. Technical data / Scope of delivery overview, General unit data section, page Lift the unit from the bottom of the unit only. Never exert lifting or transport pressure on the top part of the unit (area with fold open door).! The unit can tip when being removed from the wooden pallet and during transport. This can result in personal injury and damage to the unit. Take suitable precautions to prevent the risk of tipping over. TRANSPORT WITH A HAND TRUCK Remove packaging and set extra box aside (will be needed later on!)... Dispose of the transport and packaging materials properly and under ecological aspects Lift unit from pallet. Lift the unit from the bottom of the unit only. Never exert lifting or transport pressure on the top part of the unit (area with fold open door). Push the hand truck under the unit at the rear of the unit and transport the unit to the installation location. Transport with a hand truck on the front side of the unit is not permitted. Never use components and connections on the unit for transport purposes. To prevent transport damage, you should transport the unit to its final place of installation in its packed condition (on the wooden pallet with packaging) using a pallet truck. If transport to the final installation location using a pallet truck is not possible, you can also transport the ventilation and domestic hot water module on a hand truck. Use a special hand cart for stairs if the transport route passes along stairs and slowly lower the unit step by step. Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

14 TRANSPORT OVER STAIRS WITHOUT HAND CART Secure the unit with ropes or similar and slowly slide it down two wooden planks. INSTALLATION Use the base frame part of the rear of the unit only as a sliding edge. DANGER! Several people are required to install the unit. NOTICE. Always observe the installation plan for the respective model. Note the size and minimum clearances. For installation plans of the respective unit type, from page 9 (KHZ air/water) Technical data/scope of delivery overview, General unit data section in the operating manual of the respective heat pump Mount feet. Sliding the unit without the feet mounted can damage the floor. Slowly and carefully tilt the unit from one side Secure unit in raised tilted position so that it cannot accidentally tip back into the original position. CAUTION! Hands and fingers could be crushed during the following tasks! Mount one foot each on the front and back of the unit. Install the unit so that the swivelling door at the front is accessible at all times and can be completely opened. Install the corresponding heat pump according to the requirements of the relevant operating manual Installation section in the operating manual of the respective heat pump If you have not yet done so, remove the packaging from the ventilation and domestic hot water module, place the extra box to the side (is required later!) and lift the ventilation and domestic hot water module off the wooden pallet Lift the unit from the bottom of the unit only. Never exert lifting or transport pressure on the top part of the unit (area with fold open door). Place the ventilation and domestic hot water module on a firm, load-bearing and horizontal surface, preferably insulated against structural sound. Ensure that the floor is designed to carry the total weight (weight of ventilation and domestic hot water module plus weight of heat pump) Technical data/scope of delivery overview, General unit data section, page Foot Lock nut Adjusting screw Slowly and carefully tip the unit back into the original position. Repeat the procedure on the other side of the unit Position the ventilation and domestic hot water module as shown in the installation plans For installation plans of the respective unit type, from page 9 (KHZ air/water) 4 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

15 NOTICE. If the ventilation and domestic hot water module is operated with a Compact air/water heat pump, position the ventilation and domestic hot water module flush with either the right or left-hand side of the Compact air/water heat pump. The ventilation and domestic hot water pump must be open at the side next to the heat pump. If necessary, unscrew the side facing panel from the ventilation and domestic hot water module and attach to the opposite side. Vertically align the ventilation and domestic hot water module by adjusting the adjustable feet. If the ventilation pipes for the ventilation and domestic hot water module are not installed immediately after the module is installed, cover the ventilation pipe connections in the unit so that dirt and dust cannot get into the unit. NOTICE Close off any connections not required with appropriate plugs. Before filling the system, tighten the tank connections and check for leaks after filling! When installing the connections, always secure the connections on the unit from twisting, in order to prevent damage to the copper pipes in the interior of the unit. INTEGRATION IN A KHZ-LW At the rear of the unit, install the 90 elbow of a connecting hose to the heating return of the ventilation and domestic hot water module () Domestic hot water tank integration Always comply with applicable accident prevention regulations, statutory regulations, ordinances and directives. Flush the smooth tube heat exchanger of the domestic hot water tank with water before connecting the heating water pipes. Ensure the connecting pipe lengths are as short as possible. CAUTION! Do not exceed the operating pressures specified on the rating plate. If necessary, install a pressure reducer. NOTICE. To level out pressure fluctuations or water hammer in the cold water network and to avoid unnecessary water loss, we recommend installation of a suitable expansion vessel with flow fittings. Example illustrated: Connection with an air/water heat pump Heating return, ventilation and domestic hot water module Heating and domestic hot water inlet (return) of heat pump For connection items, see dimensional drawing for the respective unit type, page 8 (KHZ air/water) Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 5

16 Use the T-piece to connect this connection hose with the heating and domestic hot water inlet (return) at the rear of the heat pump () Install a bleeder and a shut-off device at the heating flow of the ventilation and domestic hot water module Installation of the ventilation duct Install the unit only according to the specifications of the ventilation project planning. OUTDOOR, SUPPLY AIR AND EXHAUST AIR INTEGRATION Example illustration: Connection with an air/water heat pump Elbow with air vent at the heating flow of the ventilation and domestic hot water module Shut-off device Install a connection hose to the shut-off device and connect the 90 elbow of this connection hose with the domestic hot water outlet (flow) of the heat pump First fit bends and/or approx..0 m insulated flexible hose or flexible pipe to the connection for outdoor air at the ventilation and domestic hot water module. If necessary, fit insulated hose/pipe to the supply air and exhaust air connection too For the connection positions, see dimensional drawings KHZ air/water, page 84 To do this, push the flexible hoses or flexible pipes over the connecting sockets and fix with hose clips Then attach silencers for the supply air and exhaust air system Where possible, install these silencers in bends in order to amplify the silencing effect Lay the remaining pipe, for example, with folded spiral-seam tubes for the outdoor air system up to the penetrations or for the main riser and down pipes for the supply air and exhaust air Insulate cold pipes in warm rooms and hot pipes in cold rooms Example illustration: Connection with an air/water heat pump Domestic hot water outlet (flow) of the heat pump Elbow with air vent at the heating flow of the ventilation and domestic hot water module Shut-off device Install inlets for supply air and outlets for exhaust air Make the connection with the outdoors for the outdoor air, preferably through the external wall Fit the connections or penetrations with suitable grilles on the outside of the building. For pressure loss reasons, choose the grilles to be one nominal size larger than the connecting sleeves at the unit. 6 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

17 EXTRACT AIR INTEGRATION (KHZ-LW ONLY) First, insert the connecting sleeves supplied with the KHZ-LW in the opening provided in the intake cover also included with the KHZ-LW To do this, push the flexible pipe over the connecting socket and fix with hose clips Insulate flexible pipe. Intake cover with opening Connecting sleeves Attach this intake cover on the short, straight duct of the air duct system (accessory which must be purchased), which then becomes the intake duct Assembly and installation of the air ducts section in the operating manual of the air/water heat pump. Install the intake duct on the rear of the air/water heat pump with the help of the unit connection set Connect the connection for extracted air at the ventilation and domestic hot water module with the connecting sleeve at the intake duct via the flexible pipe supplied with the KHZ-LW Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 7

18 Electrical connections The following applies to all work to be performed: DANGER! Danger of fatal injury due to electric current! Electrical connections may be installed only by qualified electricians. Before opening the unit, disconnect the system from the power supply and secure it from being switched back on! DANGER! During installation and while carrying out electrical work, comply with the relevant EN, VDE and/or local safety regulations. Comply with technical connection requirements of the responsible power supply company (if required by the latter)! Push the cables through the cable duct in the heat pump in the direction of the electrical switch cabinet (LWC) Undo the quick-release screws on the front panel of the heat pump, remove front panel and put it down in a safe place Open the electrical switch cabinet of the heat pump. To do this, slightly undo the cross-head screws and lift off the cover (LWC) Feed the 0V power supply, fan control and external current anode monitoring and sensor cable fed out of the rear of the ventilation and domestic hot water module in the factory through the cable sleeves and into the heat pump 0V power supply cable (three-core) Fan control cable (with plug) External current anode monitoring cable and sensor cable Electrical switch cabinet Cross-head screws Feed the 0V power supply, fan control and external current anode monitoring and sensor cable on the left-hand side of the electrical switch cabinet through the cable sleeve into the electrical switch cabinet For position of the cable sleeves, see dimensional drawing for the respective unit type 8 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

19 Ensure that the connection between the cable and plug of the fan control cable does not come undone. Do not pull on the plug, instead, push in the fan control cable. At the rear of the heat pump and ventilation and domestic hot water module, fasten the cable using the cable ties supplied. Plug the fan control cable plug into the fan circuit board NOTICE. If a Compact air/water heat pump is installed the ventilation circuit board.0 is already mounted in the factory on the system board of the heating and heat pump controller. NOTICE. The plug of the fan control cable is not properly fixed until it has latched into position. Connect the external current anode monitoring cable and sensor cable for the domestic hot water tank of the ventilation and domestic hot water module to the system circuit board of the heating and heat pump controller in accordance with the terminal diagram of the ventilation and domestic hot water module VenTower terminal diagram, page 7 Connect the power supply cable to the 0V terminal block in the electrical switch cabinet of the VenTower Close the electrical switch cabinet Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 9

20 Control unit of the ventilation and domestic hot water module You can set the various parameters for controlling the ventilation and domestic hot water module (air volume flows, operating mode, switching times, etc.) using the heating and heat pump controller. Operating manual of the heating and heat pump controller and operating manual of the ventilation circuit board.0. Flushing, filling and bleeding the system Flush the domestic hot water tank until no more air discharges from the valves at the taps Close domestic hot water valves at the taps. Insulating the hydraulic connections Insulate the hydraulic connections and pipes at the domestic hot water tank of the ventilation and domestic hot water module. NOTICE. Insulate in accordance with applicable local standards and directives. The system must be absolutely free from air before commissioning. Please follow the instructions as described in the Flushing, filling and bleeding the system section of the heat pump operating manual. FLUSHING, FILLING AND BLEEDING THE DOMESTIC HOT WATER TANK Condensate discharge The condensation precipitating from the air in the ventilation and domestic hot water module must be drained from the ventilation and domestic hot water module through the hose at the rear of it, taking into account the relevant standards and regulations. Discharge of the condensate into the sewage system is permitted only via a funnel siphon, which must be accessible at all times. Condensate discharge on page 8 The electrical conductivity of the domestic hot water must be > 00 µs/cm and lie within the required drinking water quality. Before flushing and filling the hot water tank, the drain pipe of the safety valve must be connected. Do not exceed the response pressure of the safety valve. Open domestic cold water inlet valve on domestic hot water tank Open the domestic hot water valves at the taps 0 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

21 Commissioning Ensure that the air ducting has been installed according to this operating manual and the ventilation project planning Ensure that all filters in the ventilation and domestic hot water module and in the air ducting are clean, no blockages prevent air flow and all air supply and exhaust air valves are open Ensure that the electrical connection work has been carried out according to the requirements of this operating manual Ensure that the domestic hot water tank of the ventilation and domestic hot water module is filled and the shut-off valves are open. Now please follow the instructions described in the Commissioning section of the operating manual for the heat pump. Dismantling DANGER! Danger of fatal injury due to electric current! Electrical connections may be worked on only by qualified electricians. Before opening the unit, disconnect the system from the power supply and secure it from being switched back on! WARNING! Only qualified heating or cooling system technicians are allowed to remove the unit from the system. Recycle or provide for proper disposal of unit components in accordance with the applicable regulations, standards and directives. Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

22 Technical data / scope of delivery Unit designation Installation location Inside ı Outside Applicable ı Not applicable Conformity CE Limits of application See heat pump General unit data Dimensions See dimensional drawing Weight (total) kg Ventilation module Air volume flow minimum/maximum m³/h / m³/h Maximum air volume flow at 00 Pa external compression m³/h Degree of heat recovery (dry) at AU -5 C and forced ventilation % EC fan with constant flow rate control integrated: yes no Hot water tank module Tank capacity l Maximum operating pressure bar Maximum hot water operating temperature C Maximum heating water operating temperature C Heat exchanger area m² Corrosion protection: impressed current anode integrated: yes no Electrics Power consumption min ı Power consumption max (with control unit) W ı W UK80Lb *) depending on component tolerances and flow **) comply with local regulations n.n. = not detectable w.w. = optional Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

23 VT 00 ı VT 400 ı ı , 6 ı 4 80b ı , 8 ı 50 80b Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

24 VenTower_00 Available external compression p A (Pa) DV WT DV Filter DV Umlenk DV Gesamt Lüfter max.extlüfter ## 80 00,8,, 6,6 45 ## , 4,9 4,9 65,0 57 ## ,,, 46, 77 ## (m³/h) 804 Legend: UK80x/005 Volume flow p A Free external compression of the ventilation module at maximum speed 4 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

25 Available external compression VenTower_400 p A (Pa) DV WT DV Filter DV Umlenk DV Gesamt Lüfter max.extlüfter ## 80 00,8,, 6,6 805 ## , 4,9 4,9 65,0 79 ## ,,, 46, 68 ## ,8 9,64 9,64 60, ## (m³/h) 805 Legend: UK80x/005 Volume flow p A Free external compression of the ventilation module at maximum speed Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 5

26 VenTower_00 Fan characteristic curves Legend: UK80xx Volume flow p A Compression n Ventilator/fan speed p Power consumption Lp A Sound pressure level 6 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH

27 Fan characteristic curves VenTower_400 Legend: UK80xx Volume flow p A Compression n Ventilator/fan speed p Power consumption Lp A Sound pressure level Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 7

28 4 F KHZ air/water 690 D A BT Dimensional drawings E Schutzvermerk nach DIN 4 beachten E D C ca ZU AB C FO AU LR B A Legende: 890a Technische Änderungen vorbehalten. Alle Key: Maße UK890b in mm. Pos. Bezeichnung All A dimensions Vorderansicht in mm. Manometer Heizkreis Item Designation C Draufsicht Durchführungen für Elektro-/ Fühlerkabel A Front view Manometer heating circuit D CSeitenansicht Top view von rechts Kondensatschlauch Penetrations for Ø electric/sensor i 0 cables E DRückansicht Side view from right 4 Schlauch Condensate für Sicherheitsventil hose Ø i 0 Ø i 9 Heizwasser E Rear view 4 Hose for safety valve Ø i 9 heating water BT Bedienteil 5 Brauchwasser Austritt (Vorlauf) DIN ISO 8 G" AG BT Control unit 5 Domestic water outlet (flow) DIN ISO 8 G" AG LR Luftrichtung Air direction 6 Heizwasser 6 Heating Austritt water outlet (Vorlauf) (flow) DIN DIN ISO ISO 8 8 G" G" AG LR links oder left or rechts right can vor be Ort selected wählbaron site7 Heiz- 7 Heating und Brauchwarmwasser and domestic hot water Eintritt inflow (Rücklauf) (return) DIN DIN ISO 8 G" AG ZU Supply air Socket Ø60 8 Hot water DIN EN 06 R" AG ZU Zuluft Muffe Ø60 8 Warmwasser DIN EN 06 R" AG FO Extract air Nipple Ø60 9 Penetrations for electric/sensor cables FO AB Fortluft Exhaust Nippel air Ø60 Socket Ø60 9 Kondensatschlauch 0 Condensate hose Ø Ø i 9 i 0 AB AU AbluftOutside air Muffe Ø60 Socket Ø60 0 Durchführungen Heating flow für DIN Elektro-/ ISO 8 Fühlerkabel G" AG Tilting dimension view D: 965mm Circulation DIN EN 06 R/4" AG AU Außenluft Muffe Ø60 Heizungsvorlauf DIN ISO 8 G" AG Tilting dimension view E: 995mm Heating return DIN ISO 8 G" AG Kippmaß without control Ansicht element D: 965mm and adjustable feet Zirkulation 4 Cold water DIN EN DIN 06 EN 06 R/4" R" AG AG Kippmaß Important: Ansicht Scope E: of 995mm delivery includes vibration decoupler Heizungsrücklauf + shut-offs; DIN extract ISO 8 air G" integration AG ohne Bedienteil und Stellfüße 4 Kaltwasser DIN EN 06 R" AG Achtung: im Lieferumfang enthalten Schwingungsentkopplung + Absperrungen; Fortlufteinbindung 8 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 4 a - Zust.

29 4 F Installation plan version V 5 G KHZ air/water > E OKF < B KA FA 00 9 D FWS Schutzvermerk nach DIN 4 beachten > BS LR B 000 C FA >970 FWS B A Legend: Legende: UK899- Pos. BezeichnungAll dimensions in mm. Technische Änderungen vorbehalten. Zubehör: Wanddurchführung 800x800x40 Item Designation Dim. Alle Maße in mm. Zubehör: Luftkanal 700x700x450 B With finished wall thickness 40 to 0 0 Zubehör: Luftkanal 700x700x000 Pos. Bezeichnung With finished wall thickness Maß 0 to 400 Einbau 50über Erdgleiche: B 5 Bei Fertigwandstärke With finished 40 wall bis thickness to 0 Zubehör: 70 Wetterschutzgitter 845x850 B Bei Fertigwandstärke With finished 0 wall bis thickness to 400 Einbau 650im Lichtschacht: 6 Bei Fertigwandstärke 40 bis 0 70 Zubehör: Regenschutzgitter Item Designation 845x850 B VBei Fertigwandstärke Version 0 bis Bauseits: Lichtschacht mit Wasserablauf 7 Accessory: wall duct 800x800x40 OKF Top edge of finished floor min. freier Querschnitt Accessory 0,6m² air duct 700x700x450 V Version Mindestabstände für Servicezwecke: FA Fnished outer façade Accessory: air duct 700x700x000 OKF Oberkante Fertigfussboden Wenn Abstände bis auf das Mindestmass reduziert LR Air direction 9 5 FA Fertigaussenfassade werden, muss man dieinstallation Luftkanäle einkürzen. above ground Dies hat level LR BS Luftrichtung Operator side eine erhebliche Erhöhung Accessory: des Schalldruckpegels weather guard zur Folge! 845x850 BS FWSBedienseite Finished wall thickness 6 Installation in light well FWS KA Fertigwandstärke Condensate discharge Accessory: rain guard 845x850 KA G Kondensatablauf Section installation in light well 7 Provided by customer: light well with water drain min. G Schnitt Einbau im Lichtschacht exposed cross section 0,6m² Tilting dimension of heat pumps = Minimum clearance for service purposes Kippmass der Wärmepumpe = 000mm. If the distances are reduced to the minimum dimension, the air ducts must be made shorter. This leads to a significant increase in the sound intensity level! - 9_Aufstellungsplan_KHZ_LW~-.SLDDRW 899_Aufstellungsplan_KHZ_LW Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH 4 Zust. PE Än

30 F V KHZ air/water Installation plan version 860 >50 G E <750 OKF FA KA B D FWS 00 9 Schutzvermerk nach DIN 4 beachten C >00 FA B LR BS B A FWS 845 > Legende: 899 Pos. Bezeichnung Technische Legend: Änderungen UK899- vorbehalten. Zubehör: All Wanddurchführung dimensions in 800x800x40 mm. Alle Maße in mm. Zubehör: Luftkanal 700x700x450 Item Designation Dim. Zubehör: Luftkanal 700x700x000 B With finished wall thickness 40 to 0 0 Pos. Bezeichnung Maß Einbau über Erdgleiche: With finished wall thickness 0 to Bei Fertigwandstärke 40 bis 0 0 Zubehör: Wetterschutzgitter 845x850 B B With finished wall thickness 40 to 0 70 Bei Fertigwandstärke 0 bis Einbau im Lichtschacht: With finished wall thickness 0 to Bei Fertigwandstärke 40 bis 0 70 Zubehör: Regenschutzgitter 845x850 B Bei Fertigwandstärke 0 bis Bauseits: Item Lichtschacht Designation mit Wasserablauf V Version 7 min. freier Querschnitt Accessory: 0,6m² wall duct 800x800x40 V OKFVersion Top edge of finished floor Mindestabstände Accessory für Servicezwecke: air duct 700x700x450 OKF FAOberkante Fnished Fertigfussboden outer façade Wenn Abstände bis Accessory: auf das Mindestmass air duct 700x700x000 reduziert 9 FA LRFertigaussenfassade Air direction werden, muss 5 man Installation die Luftkanäle above einkürzen. ground Dies level hat LR BSLuftrichtung Operator side eine erhebliche Erhöhung Accessory: des Schalldruckpegels weather guard 845x850 zur Folge! BS FWSBedienseite Finished wall thickness 6 Installation in light well FWS KAFertigwandstärke Condensate discharge Accessory: rain guard 845x850 KA G Kondensatablauf Section installation in light well 7 Provided by customer: light well with water drain G Schnitt Einbau im Lichtschacht min. exposed cross section 0,6m² Tilting dimension of heat pumps = Minimum clearance for service purposes Kippmass der Wärmepumpe = 000mm. If the distances are reduced to the minimum dimension, the air ducts must be made shorter. This leads to a significant increase in the sound intensity level! 4 9_Aufstellungsplan_KHZ_LW~-.SLDDRW 0 Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH - Zust. PEP Änd 899_Aufstellungsplan_KHZ_LW

31 F V Installation plan version G 4 KHZ air/water 5 6 > E OKF < KA Schutzvermerk nach DIN 4 beachten D C >00 B FWS BS 5 LR >80 Legende: 899 Pos. Bezeichnung Legend: Technische UK899- Änderungen vorbehalten. All Zubehör: dimensions Wanddurchführung in mm. 800x800x40 Item Alle Maße Designation in mm. Dim. Zubehör: Luftkanal 700x700x450 4 Zubehör: Luftkanalbogen 700x700x750 B B With finished wall thickness 40 to 0 55 Pos. Bezeichnung Maß Einbau über Erdgleiche: With finished wall thickness 0 to Bei Fertigwandstärke 40 bis 0 55 Zubehör: Wetterschutzgitter 845x850 B Item Designation Bei Fertigwandstärke 0 bis Einbau im Lichtschacht: V Version 6 Zubehör: Accessory: Regenschutzgitter wall duct 845x x800x40 OKF V Top Version edge of finished floor Bauseits: Accessory Lichtschacht air duct mit Wasserablauf 700x700x450 FAOKF Fnished Oberkante outer Fertigfussboden façade 7 4min. Accessory: freier Querschnitt air 0,6m² duct bend 700x700x750 LRFA Air Fertigaussenfassade direction 5Lufttechnische Installation Trennung: above Tiefe ground 000level mm, Höhe BSLR Operator Luftrichtung side bei Accessory: Lichtschachtmontage weather 000 guard mm, 845x850 8 FWS BS Finished Bedienseite wall thickness 6 über Installation Erdgleiche in 500 light mm, well KAFWS Condensate Fertigwandstärke discharge 00 mm Accessory: über Wetterschutzgitter rain guard 845x850 KA Kondensatablauf Mindestabstände für Servicezwecke: A G Section installation in light well 7 Provided by customer: light well with water drain min. G Schnitt Einbau im Lichtschacht Wenn Abstände bis auf das Mindestmass reduziert 9 exposed cross section 0,6m² werden, muss man die Luftkanäle einkürzen. Dies hat Kippmass der Wärmepumpe = 000mm. 8 Ventilation separation: eine erhebliche Erhöhung des Schalldruckpegels zur Folge! Depth: 000 Height by light well installation 000 Height by installation above ground level: 500, 00 - PEP 0 above weather guard 4 Zust. Änderun 9 Minimum clearance for service purposes 899_Aufstellungsplan_KHZ_LW~-.SLDDRW 899_Aufstellungsplan_KHZ_LW~-. If the distances are reduced to the minimum dimension, Tilting dimension of heat pumps = 000 the air ducts must be made shorter. This leads to a significant increase in the sound intensity level! Subject to change without notice dUK Translation into English of the original German operating manual ait-deutschland GmbH