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6.3 

Design with 2 Air-Injectors

An on-site supply air duct can be connected to the RoofVent

®

 unit for distributing 

the supply air over a very wide area. 2 Air-Injectors can be installed on this.

Fig. 6:  RoofVent

®

 unit with supply air duct and 2 Air-Injectors

6.4 

Design without Air-Injector

RoofVent

®

 units in the design without Air-Injector are suitable for connecting to an 

air distribution system supplied by the client.

Fig. 7:  Connection to an air distribution system supplied by the client

6.5 

Paint finish of below-roof unit

The entire below-roof unit including optional components is painted in any colour.

17

RoofVent

®

 KG

Operating instructions

Options

4 220 755-en-00

Summary of Contents for RoofVent KG

Page 1: ...RoofVent KG Operating instructions RoofVent KG Original operating manual 4220755 en 00...

Page 2: ...without Air Injector 17 6 5 Paint finish of below roof unit 17 6 6 Fresh air and exhaust air silencers 18 6 7 Supply air and extract air silencers 19 6 8 Condensate drain inside 19 6 9 Energy monitor...

Page 3: ...justable Air Injector Intended use also includes compliance with the operating instructions Any usage over and above this use is considered to be not as intended The manufacturer can accept no liabili...

Page 4: ...heir training knowledge and experience as well as their knowledge of the relevant regulations and guidelines can carry out the work assigned to them and recognise potential hazards Please read the ope...

Page 5: ...ion Fire hazard due to hot components Do not switch off the power supply until the heating pump comes to a complete stop When the heating pump comes to a stop Turn the isolation switch on the unit to...

Page 6: ...nit with energy recovery Gas boiler attachment Below roof unit a b c 1 2 1 Roof unit with energy recovery and gas boiler attachment 2 Below roof unit a Connection module b Heating section c Air Inject...

Page 7: ...ir access door access to the fresh air filter 10 Diaphragm expansion vessel 11 Plate heat exchanger with bypass for performance control and as recirculation bypass 12 Exhaust air fan 13 Exhaust air ac...

Page 8: ...monitoring 10 Heating coil 11 Diaphragm expansion vessel 12 Safety valve 13 Heating pump 14 Return temperature sensor 15 Condensing gas boiler 16 Air Injector with actuator 17 Supply air temperature s...

Page 9: ...IN Energy recovery 0 100 Extract air damper open Recirculation damper closed Heating 0 100 AQ Air quality This is the operating mode for demand controlled ventilation of the room The room temperature...

Page 10: ...flow rate Fresh air and bypass dampers are open ST Standby The unit is ready for operation The following operating modes are activated if required CPR Cooling protection If the room temperature drops...

Page 11: ...ith 2 Air Injectors D0 Design without Air Injector Paint finish without LU Paint finish of below roof unit Silencers outside without AF Fresh air and exhaust air silencer Silencers inside without SI S...

Page 12: ...h 5000 1 Moisture increase in the room max 2 g kg Table 3 Application limits 5 2 Heat recovery system HRS Temperature efficiency dry 57 Temperature efficiency wet 64 Table 4 Thermal transfer level of...

Page 13: ...tural gas E Wo 15 0 kWh m H 9 97 kWh m m h 1 4 7 6 Natural gas LL Wo 12 4 kWh m H 8 57 kWh m m h 1 6 8 8 Condensate quantity at 50 30 C l h 7 1 1 Data relates to Hi The boiler series is tested for EE...

Page 14: ...E 450 937 630 1100 1 2 5 6 3 4 1 Roof unit with energy recovery and gas boiler attachment 2 Connection module 3 Access panel coil 4 Access panel connection box 5 Heating section 6 Air Injector Fig 4 R...

Page 15: ...on module V0 kg 94 Additional weight V1 kg 13 Additional weight V2 kg 26 Additional weight V3 kg 52 Table 12 RoofVent KG weights 128 75 4 0 2 5 758 1350 20 323 552 1 2 3 1 Condensate drain plate heat...

Page 16: ...covery is shown The unit runs in local Exhaust air mode until the ice has defrosted and then switches back to automatic mode The plate heat exchanger is fitted with a drop eliminator on the extract ai...

Page 17: ...and 2 Air Injectors 6 4 Design without Air Injector RoofVent units in the design without Air Injector are suitable for connecting to an air distribution system supplied by the client Fig 7 Connection...

Page 18: ...0 H mm 650 Weight kg 42 Pressure drop Pa 10 Table 14 Technical data fresh air silencer The exhaust air silencer reduces noise emissions from RoofVent units on the exhaust air side It consists of an al...

Page 19: ...ndensing boiler can be channelled inside the RoofVent unit to the drain connection in the connection module To prevent icing of the condensate the condensate line is heated 6 9 Energy monitoring Energ...

Page 20: ...ollowing accessories are supplied separately Transport eyes for lifting the below roof unit and the roof unit 2 each attached to the pallet of the first roof unit Screws for assembling the units and f...

Page 21: ...ed screwed onto the pallet To loosen the screws the inspection doors must be opened When unloading the units make sure that there is enough space to open the inspection doors Use a forklift with a suf...

Page 22: ...ly accessible The Air Injector must be easily accessible Clearance of at least 0 9 m is required for maintenance work around the heating section X 2 X Y Distance X min m 18 max m 36 Mounting height Y...

Page 23: ...roof unit 3 m for the roof unit Sealing compound for the roof frame e g Sikaflex 221 Adhesive for securing screws e g Loctite 243 medium strength soluble Below roof unit Remove the below roof unit fro...

Page 24: ...correct position is marked on the unit Place the connection module on the bottom part Screw the components together use the supplied screws and protective plugs to do so 1 2 3 4 1 Connection module 2...

Page 25: ...oth sides Secure the clamping locks with cotter pins Exhaust air silencer Lift the silencer and position it on the air outlet opening of the unit Insert the bolts into the hinges and insert the safety...

Page 26: ...e using a helicopter or crane Turn the below roof unit to the desired position Hang the below roof unit into the roof frame from above Check the sealing strip on the connection module flange Improve t...

Page 27: ...esive e g Loctite 243 Remove the transport eyes and attach the cover caps Keep the transport eyes for when disassembling the units at a later date at the end of their service life Reattach the fan pro...

Page 28: ...washers 2 Screw the fastening bracket to the roof unit M6x20 screws 3 Mount the air intake flue gas pipe on the pre installed first pipe section Secure the air intake flue gas pipe to the roof unit w...

Page 29: ...ssion tape onto the Air Injectors Attach the Air Injectors to the supply air duct with a perforated angle plate and blind rivet nuts Do not install any add ons or fittings in the direct outlet area Th...

Page 30: ...circuit Check the heating circuit for leaks 7 8 Condensate connection The condensate from the gas condensing boiler is neutralised and flows off through the condensate drain on the underside of the g...

Page 31: ...pply line Ensure that the gas supply line run and the dimensions are in compliance with the relevant local regulations Connection External thread R Connect the gas supply line with appropriate bolted...

Page 32: ...connection box and cable duct leading to the roof unit Proceed as follows Connect the connection box in the below roof unit to the control block in the roof unit Unscrew the fan protecting plate Deta...

Page 33: ...2 5 3 4 1 Actuator Air Injector 2 Supply air temperature sensor 3 Power supply RoofVent 4 Zone bus 5 Connection box Fig 32 Cable routing on the below roof unit components vary depending on unit type T...

Page 34: ...sion of a suitable working platform Organisation of commissioning and training date presence of all of the respective trade groups and of the operating personnel The unit is checked at the factory and...

Page 35: ...a stop Turn the isolation switch on the unit to the Off position and secure it against being switched back on Caution Danger of electric shocks The unit controller and the service socket are still liv...

Page 36: ...gas control valve and readjust where necessary 1 annually Neutraliser Loosen contaminated granulate and clean neutralisation unit with water Replace heavily soiled granulate 1 annually Check of the h...

Page 37: ...the new filter elements When doing this only hold the frame Fix the filter elements in place with the filter brackets Fold the access door up and reattach the safety loops Close the access door Chang...

Page 38: ...Disconnect the power supply to the unit Wait at least 3 minutes after switching the unit off Caution The use of condensers can pose a danger of fatal injury from directly touching live parts even afte...

Page 39: ...nd electronic parts via hazardous waste Dispose of oil fouled parts in accordance with local regulations Dispose of the filters in accordance with local regulations The filters are fully incinerable t...

Page 40: ...Hoval Aktiengesellschaft 9490 Vaduz Liechtenstein Tel 423 399 24 00 info klimatechnik hoval com www hoval com United Kingdom Hoval Ltd Northgate Newark Notts NG24 1JN Tel 01636 672711 hoval hoval co...

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