OSTBERG HERU LP, Assembly/Installation Instructions

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S E R V I C E M E N U : “ R E G U L A T I O N M O D E ”
3 different types of regulation modes can be used.
• At a
constant supply air regulation the temperature sensor (GT7) is placed in the supply air duct and
a constant incoming air temperature is obtained.
• At
room regulation a sensor (GT8) is placed in the room and a sensor (GT7) in the supply air duct
(minimum/maximum limitation) and a constant room temperature is obtained (suitable when
a cooling coil is installed).
• The
extract air regulation works in a similar way as the room regulation with the difference being that
the temperature is measured in the extract air duct.
Press again and then in order to choose Supply reg., Extract reg. or Room reg.
S E R V I C E M E N U : “ M O D B U S ”
Menu ”Modbus” appears only in v wireless control unit.
V wireless control unit activates the Modbus port on the control board and the ability to communicate
via RS485. For this you need complete Modbus index that you can download from www.ostberg.com.
ID and baud rate must match the client settings.
Modbus Id
1
9600 Baud
Modbus Id
1
9600 Baud
Modbus Id
1
9600 Baud
Device name
Device name
Done Clear
1/128
Modbus
Extract reg.
Supply limits
Regulation mode
Modbus
Freeze protection
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