System air MAXI 1100 Troubleshooting guide

Corrigo ver. no. 3.0-1-03
GB
MAXI 1100, 2000
Compact Air Handling Unit
Operation and maintenance instructions

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Maxi 1100-2000 Operation- and maintenance instructions
204414 Systemair AB
2
Fig. 1
Fig. 2
Description
1. Alarm button 7. Connection block
2. Alarm LED 7a. Yellow cable
3. Write enable LED 7b. Orange cable
4. OK button 7c. Red cable
5. Clearing button 7d. Brown cable
6. Mounting holes 7e. Black cable
Description
1. Fan, supply air 8. Damper Heat exchanger
2. Fan, extract air 9. Water condensate drain
3. Heater Electrical or Hot water 10. Water condensate drain, Only EL units
4. Heat exchanger 11. Damper Outdoor/Exhaust air (accessories)
5. Connection box 12. Supply air
6. Filter Supply air 13. Extract air
7. Filter, Extract air 14. Exhaust air
15. Outdoor air

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Maxi 1100-2000 Operation- and maintenance instructions
204414 Systemair AB
3
Fig 3
Description MAXI 1100
1. Supply air fan with inspection hole for inspection of
rotation direction 16. Contactor, exhaust fan speed normal (K3)
2. Exhaust air fan with inspection hole for checking of
rotation direction 17. Contactor, supply fan speed reduced (K2)
3. Extract filter, G3 18. Contactor, supply fan speed normal (K1)
4. Supply air filter, F5 19. Corrigo E28 Controller
5. Exchanger block 20. Electronic temperature controller, Pulser (EL
units)
6. Locking brackets, Exchanger block 21. By-pass section
7. Motor for bypass damper 22. Transformer, fan speed
8. Filter guard supply air filter 23. Transformer 24V AC, control circuit
9. Fan guard supply fan 24. Overheating protection EL- heating battery,
Manual reset.
10. Filter guard extract filter 25. Overheating protection EL- heating battery,
Automatic reset.
11. Connection block, supply voltage and external
connections. 26. Contactor, air flow indicator (K6) (EL units)
12. Fuse, control circuit and fans 26. Contactor, HW pump (K7) (HW units)
13. Fuse, EL- heating battery (EL units) 27. Sensor, Supply air temperature
14. Contactor, EL- heating battery (K5) (EL units) 28. Sensor, Extract air temperature
14. Contactor, air flow indicator (K6) (HW units) 29. Sensor, Outdoor air temperature
15. Contactor, exhaust fan speed reduced (K4) 30. Sensor, Defrosting temperature

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Maxi 1100-2000 Operation- and maintenance instructions
204414 Systemair AB
4
Fig 4
Description MAXI 2000
1. Supply air fan with inspection hole for inspection of
rotation direction 15. Contactor, exhaust fan speed reduced (K4)
2. Exhaust air fan with inspection hole for checking of
rotation direction 16. Contactor, exhaust fan speed normal (K3)
3. Extract air filter, G3 17. Contactor, supply fan speed reduced (K2)
4. Supply air filter, F5 18. Contactor, supply fan speed normal (K1)
5. Exchanger block 19. Corrigo E28 Controller
6. Locking brackets, Exchanger block 20. Electronic temperature controller, Pulser (EL
units)
7. Motor, exchanger shut off damper 21. Transformer, fan speed
8. Filter guard supply air filter 22. Transformer 24V AC, control circuit
9. Fan guard supply fan 23. Overheating protection EL- heating battery,
Manual reset.
10. Filter guard extract filter 24. Overheating protection EL- heating battery,
Automatic reset.
11. Connection block, supply voltage and external
connections. 25. Contactor, controlling fan speed transformer (K6)
12. Fuse, control circuit and fans 26. Sensor, Supply air temperature
13. Fuse, EL- heating battery (EL units) 27. Sensor, Extract air temperature
14. Contactor, EL- heating battery (K5) (EL units) 28. Sensor, Outdoor air temperature
14. Contactor, HW pump (K7) (HW units) 29. Sensor, Defrosting temperature

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Maxi 1100-2000 Operation- and maintenance instructions
204414 Systemair AB
5
Introduction
Installation, operation and maintenance manual concerns air handling unit type MAXI, manufactured
by Systemair AB. It consists of basic information and recommendations concerning the design,
installation, start-up and operation, to ensure a proper fail-free operation of the unit.
The key to proper and safe operating of the unit is to read this manual thoroughly, use the unit
according to given guidelines and follow all safety requirements.
Index
Introduction...............................................................................................................................5 
Index.........................................................................................................................................5
Operation..................................................................................................................................6
Set the menu language ........................................................................................................6
Control panel ............................................................................................................................6
Access rights ........................................................................................................................6
How to operate .................................................................................................................6
Alarms ..............................................................................................................................7
Starting up the unit. ..........................................................................................................7
Initial setup of the unit...............................................................................................................8
Menuoverview SERVICE LEVEL/OPERATOR LEVEL...........................................................10
Free cooling description...........................................................................................................21 
Warning ...................................................................................................................................22
Maintenance............................................................................................................................22
Troubleshooting.......................................................................................................................23
Service ....................................................................................................................................23

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Maxi 1100-2000 Operation- and maintenance instructions
204414 Systemair AB
6
Operation
General
This manual describes the most common function/settings. For more information about other
function/settings please see the attached Corrigo E – Manual. The Corrigo E – Manual can also be
retrieved from www.regin.se in different languages.
MAXI units with Electrical heater have 3 minutes of re-cooling after having been turned off.
N.B. If the fire alarm is activated when the heater is on, the fan stops immediately without re-cooling,
this can cause the overheating protection to trip. See fig.3 and 4where to reset the manual
overheating protection.
Set the menu language
Press the OK button while switching on the mains supply.
Press the OK button. Choose language with the UP/DOWN-buttons. Confirm the choice with the OK
button. Press the LEFT button to go back in the menus.
The language can also be changed in main menu, press “Right” arrow 3-times on the control panel.
Control panel
Access rights
There are 2different logon levels, Operator level and Service level.
Service levels gives read/write access in the settings and parts of the configuration menu.
Operator level permits read/write access to a limited number of settings and parameters.
Password
As default MAXI comes with the following password for different levels:
Operator 1111 Service 2222
How to operate
See fig 2.
The menus in the Corrigo E are organized in a horizontal tree structure. The UP/DOWN-buttons are
used to move between menus at the present menu level. The RIGHT/LEFT buttons are used to move
between menu levels. When changing parameters the UP/DOWN buttons are used to increase or
decrease the value of the parameter and the RIGHT/LEFT buttons to move between digits within the
parameter.
The OK button is used to confirm the choice of a parameter setting.
The C button is used to abort an initiated parameter change and restore the original value.
The ALARM button is used to access the alarm list.
Changing parameters
In some menus there are parameters that can be set. This will be indicated by the LED flashing.
To change a parameter, first press the OK button, the LED changes to a steady light. A cursor will
appear at the first settable value. If you wish to change the value, do so by pressing the UP/DOWN
buttons. In numbers containing several digits you can move between the digits using the
LEFT/RIGHT-buttons.
When the desired value is displayed, press OK. Settings outside the intervals are not registered.
Preset values count. If there are further settable values displayed the cursor will automatically move to
the next one. To pass a value without changing it, press RIGHT.
To abort a change and return to the initial setting, press and hold the C-button until the cursor
disappears.

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Maxi 1100-2000 Operation- and maintenance instructions
204414 Systemair AB
7
Navigating the menus
The start display (the display normally shown) is at the root of the menu tree.
Pressing DOWN ▼will move you through the menu choices, in this the lowest level. UP ▲will move
you back through the choices.
To enter a higher menu level, use UP or DOWN to place the display marker opposite the menu you
wish to access and press RIGHT ►.
If you have sufficient log on privileges the display will change to the menu you have chosen.
At each level there may be several new menus through which you may move using the UP/DOWN
buttons.
Sometimes there are further sub menus linked to a menu or menu item. This is indicated by an arrow
symbol at the right-hand edge of the display. To choose one, use RIGHT ►again. To back down to a
lower menu level, use LEFT ◄.
Alarms
Alarm button (pos.1 in fig. 2) opens the alarm queue. By pressing this button and active and non-
acknowledged alarms will be displayed in the menu window. The LED for alarms (pos.2 in fig. 2) is
blinking if there are non-acknowledged alarms and shine steadily if the alarms are still active but have
been acknowledged. If there are multiple alarms use UP/DOWN buttons to move between them. An
alarm can be acknowledged or blocked by using OK and UP/DOWN buttons. To abort and go back to
the start menu select Cancel and press the LEFT button.
For alarm settings see the Commissioning protocol in the installation description (page 35 and 36).
Extra stop function
For some alarm types such as electric heating high temperature limit and water heating frost
protection it would be dangerous to not stop the unit on alarm. Therefore, for such alarm types, the
program will always reset the stop function to Active even if the operator should choose Inactive.
It is unfortunately not possible to remove the display text concerning the stop function for these alarm
types. This since the available program space demands that all alarms are treated in the same way in
the display.
Starting up the unit.
Control that all external equipment are connected.
Switch on fuses (pos.12 and 13, fig. 3 & 4) in the unit.
Switch on the supply voltage.
Set present time and date, set the control temperature and program the week schedule. Do the
necessary settings for extra functions if any.

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