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Summary of Contents for Maico WRG 400 EC
- Page 1 WRG 300 EC WRG 400 EC Mounting and Operating Instructions w w w . m a i c o - v e n t i l a t o r e n . c o m...
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Page 2: Table Of Contents
Sound insulation ..............11 Electrical connection ............. 12 Connections and dimensions of the WRG 300 EC ....14 Connections and dimensions of the WRG 400 EC ....15 Start-up ................. 16 Switching ventilation unit on and off ........16 Setting air volumes ..............16 Settings made by the installer .......... - Page 3 Maintenance ................. 28 Maintenance by the user ............28 Maintenance by the installer ..........29 Wiring plans / Diagrams ............. 32 Simplified diagram without bypass ........32 WRG 300 / 400 EC wiring diagram ........33 WRG 300 / 400 EC + RLS 2 F + WRH in the supply air channel ..........
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Page 4: Introduction
● Ventilation unit. 1.1 Product description ● These mounting, operation and mainte- This product from the advanced Maico WRG nance instructions. 300 / 400 EC model range is a heat recovery unit with an efficiency rate of 90 % and en- 1.3 Symbols in this manual... -
Page 5: Essential Safety Instructions
2.3 Predictable misuses to avoid the unit being accidentally switched back on.) Maico is not liable for damages caused by usage not for the intended purpose. ● Do not modify the unit in any way Only use original spare parts Danger of injury. -
Page 6: Regulations For Operation With Fireplaces
2.4 Regulations for operation with fireplaces Observe the current rules from the German Federation of Chimney Sweeps (Evaluation criteria for the joint operation of fireplaces – domestic ventilation – extractor hoods) as well as other pertinent regulations and guide- lines. The ventilation unit may only be installed in rooms, apartments or living units of a comparable size with air-ventilated fire-... -
Page 7: Construction
3. Construction 3.1 Exploded view A = Exhaust air flow B = Outside air C = Outgoing air D = Supply air Unit components Coupling For the connection of the supply air and exhaust air channel Sensor for room air temperature Measures the temperature of the exhaust air leaving the building Heat exchanger... -
Page 8: Operation
The lefthand area of the display shows the 4. Operation ventilation level or the parameter type. The 4.1 General righthand area shows the read-out value, e.g. the defined air volume. A product from the WRG 300 / 400 EC range is a highly developed heat recovery fan, which, thanks to the latest electronic control- ler, combines minimum energy consumption... -
Page 9: Anti-Frost Protection
4.3 Anti-frost protection 5. Installation The frost protection system ensures that the 5.1 General secondary side of the heat exchanger (ex- The steps required to install the unit can be haust air side) does not freeze up as a result summed up as follows. -
Page 10: Wall Assembly
5.2 Wall assembly ● Locate the edge protection profile (4) on the holding plate (2). Use the special wall bracket for wall mount- ● Hang the ventilation unit (weight approx. 50 ing. See Chapter 11.3, Accessories. kg) on the holding plate (2). Make sure that the holding plate and the track line up Danger of injury if installed on a completely and that the ventilation unit is... - Page 11 ● The outside air feed should be installed on ● The exhaust air channel is to be fed the shaded side of the building, e.g. on the through the roof shell such that no conden- wall or under an overhang. If the outside air sation can build up in the roof shell.
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Page 12: Connecting The Condensation Run-Off
The piping for the con- drainage system, to receive densation run-off for the Maico WRG 300 / the condensation. 400 EC is fed through the lower panel. This disconnects the ventila-... -
Page 13: Electrical Connection
5.5.1 Ventilation unit housing emissions 5.6.1 Connecting the room air control It is not recommended that you install the The room air control should be connected to ventilation unit in the living area, kitchen or cable (A) on the top of the unit. bathroom as the housing noise emissions exceed 35 dB(A). - Page 14 5.6.2 Switching on the ventilation unit 5.6.3 Ventilation levels Set the required operating mode using Ventilation Function the selector switch. level The fans in the ventilation unit start up. The Ventilation off ventilation unit runs at the selected ventilation level. Ventilation Reduced ventilation: level 1...
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Page 15: Connections And Dimensions Of The Wrg 300 Ec
5.7 Connections and dimensions of the WRG 300 EC DN 160 outside air DN 160 exhaust air DN 160 outgoing air DN 160 supply air Condensation connection Electrical connection... -
Page 16: Connections And Dimensions Of The Wrg 400 Ec
5.8 Connections and dimensions of the WRG 400 EC DN 180 outside air DN 180 exhaust air DN 180 outgoing air DN 180 supply air Condensation connection Electrical connection... -
Page 17: Start-Up
The WRG 300 EC air volumes for levels 1, 2 and 3 are factory-set to 100, 150 and 200 m /h respectively. The WRG 400 EC air volumes for levels 1, 2 and 3 are factory-set to 100, 225 and 300 m /h respectively. - Page 18 If these conditions are not fulfilled, the air 4. The value of the selected parameter can be changed with the "+" or "-" buttons. volume is automatically switched to the higher level. The air volumes can be changed as follows. In the example here, the air volume for level 3 is increased from 150 to 300 to 400 m 1.
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Page 19: Settings Made By The Installer
B Press the "OK" button to return to the 6. Press the "F" button for 1 second to quit settings menu without saving the the settings menu. modified value. The previous value is retained. If required, further values can be changed now (see steps 2 to 5). -
Page 20: Menu Structure Display
I5 Switch cable level 2. Defines which position of the step switch corresponds to cable 2 from the central controller. I6 Switch cable level 3. Defines which position of the step switch corresponds to cable 3 from the central controller. I7 Pressure imbalance permitted? Here the definition is made whether, for example, the frost protection may access... - Page 21 6.4.1 Menu structure diagram Betriebsart Die Tasten “OK” und “-” > 1 s betätigen Die Tasten “OK” und “+” > 1 s betätige Einschalten des Geräts Ausschalten des Geräts Die Tasten “OK” betätigen Zurücksetzen des Filters Die Taste “OK”betätigen Störung beheben - Wenn 5 Min.
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Page 22: Read-Off Value Settings
6.5 Read-off value settings 6.5.2 Calling up the settings by the in- staller In standard operational mode, the display There is a more extensive program for the shows the current level of the room air control installer for calling up data. All data available and corresponding exhaust air volume set- to the installer can be called up by pressing ting. -
Page 23: Changing Settings
Step Display Description Comments (example) No. 1 2. 100 Current outgoing air fan level [m No. 2 Operating mode message C0 = No message code C3 = The supply air fan is running in constant pressure mode C6 = The outgoing air fan is running in constant pressure mode C7 = Correction of the maximum air volume... - Page 24 6.6.2 Changing settings by the installer 3. The required parameters can be called up using the "+" and "-" buttons. The installer can change more set values than the user. If parameters are incorrectly set, the performance of the unit is affected. For this reason, make sure the parameters are correctly set.
- Page 25 6. The modified value can now be: C Press and hold buttons "F" and "-" A: saved; (first "F", then "-") to save the modified B not saved; value. The value flashes three times C reset to factory setting to confirm that it has been saved. The factory setting value is retained.
- Page 26 6.6.3 Setting options table The parameters that can be set by the user are identified with "U". Those for the installer are identified with "I". Adjustable Description Setting range WRG 300 / 400 EC parameters factory settings Volume level 1 70..
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Page 27: Fault
7.2 Filter status display 7. Fault If the message "FIL" appears in the display, 7.1 Fault analysis the filters have to be exchanged. If the control system recognises a fault, this is shown on the display by a number with an "F" in front of it. -
Page 28: Display Of The Codes
7.3 Display of the codes Table of fault codes Fault Cause User measures Installer measures code The supply air fan is ● Contact in- ● Exchange the supply air fan; it is no longer working staller. defective The outgoing air fan is ●... -
Page 29: Maintenance
3. Insert the filter in the same way in which 8. Maintenance the previous one was pulled out. 8.1 Maintenance by the user The maintenance to be carried out by the user is restricted to regular cleaning and exchanging the filter. The filter only needs to be cleaned if the text "FIL"... -
Page 30: Maintenance By The Installer
8.2 Maintenance by the installer Remove the front cover. The maintenance to be carried out by the installer covers cleaning the heat exchanger and the fans. Depending on the operating conditions, this maintenance work needs to be done every three years. Switch the unit off at the operating panel by pressing and holding the "OK"... - Page 31 Remove the operating panel. Pull out the slider that the main board is mounted on. Remove all connectors from the main board that are connected with the feed through plate. Remove the earthing wire from the housing. Remove the ventilator unit. Remove the spiral housing.
- Page 32 10 Clean the fan with a soft brush. The 11 Reinsert the spiral housing in the ventila- balancing weights may not be moved out tion unit. of place. 12 Reinsert the fan in the ventilation unit. 13 Refit the earthing wire and plug the con- nectors removed earlier back into their correct positions.
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Page 33: Wiring Plans / Diagrams
9. Wiring plans / Diagrams 9.1 Simplified diagram without bypass Exhaust air temperature Supply air fan sensor Outside temperature sensor Exhaust air fan Room air control green white brown Operator unit brown blue green / yellow... -
Page 34: Wrg 300 / 400 Ec Wiring Diagram
9.2 WRG 300 / 400 EC wiring diagram C 1 = brown C 2 = blue C 3 = green/yellow C 5 = white C10 = yellow C 11 = green = Outgoing air fan = Room air control = Operator unit = Exhaust air temperature sensor = Outside air temperature sensor = Central control circuit board... -
Page 35: Wrg 300 / 400 Ec + Rls 2 F
9.3 WRG 300 / 400 EC + RLS 2 F + WRH in the supply air channel Protection of a hydraulic heat register against frost damage. A hydraulic heat register must be protected against frost damage with a safety device. 1 = Exhaust air 2 = Supply air 3 = Outgoing air... - Page 36 Recommendation: Install the thermostat TH 10 as safety device. Set the switch-off temperature to 7 °C and the differential temperature to 3 K. Optionally, the switch-off temperature can be adjusted manually using the setting wheel at the TH 10. 230 V fault indication light (to be TH10 Thermostat with temperature supplied by the customer),...
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Page 37: Air Power Diagram
9.4.1 WRG 300 EC Volumetric flow [m The value in the circle is the power level per fan (in watts). 9.4.2 WRG 400 EC Volumetric flow [m The value in the circle is the power level per fan (in watts). -
Page 38: Technical Data
10. Technical data WRG 300 EC WRG 400 EC Power supply [V/Hz] 230/50 Degree of protection [IP] Dimensions (W x H x D) 675 x 602 x 420 675 x 602 x 430 [mm] Channel diameter [mm] Ø 160 Ø 180 External diameter of the Ø... -
Page 39: Service
Temperature sensor 0157.1064.0000 plate on the unit. Heat exchanger 0192.0412.0100 Operating panel with 0157.1065.0000 We reserve the right to make modifica- display tions MAICO works continuously at further improv- ing its products and reserves the right to make changes without notice. -
Page 40: Wrg 300 / 400 Ec Accessories
0082.0118 Filter box TFE 16-7 0149.0052 Sound absorber RSR 16/50 0092.0324 Accessory / Product type WRG 400 EC Article no. Air filter, replacement, 2 x G4 WRF 300-400 EC 0093.0061 Room air control with timer RLS 2 F 0157.0806 Thermostat TH 10 0157.0764... - Page 41 NOTES...
- Page 42 Elektroapparate-Fabrik GmbH • Steinbeisstr. 20 • 78056 Villingen-Schwenningen • Germany • +49 7720 694 • technik@maico.de...
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