Category 2 - System Settings - Hitachi Atw-Rtu-02 Einbauanleitung

Installation and Operation Manual
10

3.5.2 Category 2 - System Settings

NOTE: To ensure correct heat pump system operation, parameter 8:Su must be set correctly. See note in
section 3.3 Using the Room Unit for Specific Applications.
Parameter Parameter
No.
Category 2 Parameters – System Settings (press the
Heat/Cool selection
4:HC
enable / disable
Room Temperature
8:Su
Sensor Use
Maximum Flow
Setpoint (extension 11:uF
systems only)
Minimum Flow
Setpoint (extension 12:LF
systems only)
Mixing Value Run
Time (extension 13:Ar
systems only)
Pump Overrun Run
Time (extension 14:Pr
systems only)
Note
Remember to always press the green
setting. To exit the Installer Mode press the
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Factory Default Setting
button to access this category)
0 Disabled
Programmer and
0 room compensation
unit
55°C Maximum Flow
55
Temp.
15°C Minimum Flow
15
Temp.
150 150 seconds
15 15 minutes
button to confirm that you want to store your new Installer Set-Up
or button.
Optional Setting
1 Enabled
Programmer only. Transmits demand
1 and room setpoint (no temperature
displayed)
0 to 99 0°C to 99°C adjustment in 1°C steps
0 to 50 0°C to 50°C adjustment in 1°C steps
0 to 0 to 240 sec. adjustment in 1sec
240 steps
0 to 99 0 to 99 mins adjustment in 1min steps