Category 2 - System Settings - Hitachi SYSTEM MMI PACK Manuel D'installation

Room Unit Installation Guide
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
Category 2 Parameters – System Settings (press the
Heat/Cool selection
enable / disable
Room Temperature
Sensor Use
Maximum Flow
Setpoint (extension
systems only)
Minimum Flow
Setpoint (extension
systems only)
Mixing Value Run
Time (extension
systems only)
Pump Overrun Run
Time (extension
systems only)
Note
Remember to always press the green
setting. To exit the Installer Mode press the
50036443-002 B - Hitachi Room Unit Inst (EN, F).indd 10
Factory Default Setting
No.
4:HC 0 Disabled
8:Su 0 Programmer and
room compensation
unit
11:uF 55 55°C Maximum Flow
Temp.
12:LF 15 15°C Minimum Flow
Temp.
13:Ar 150 150 seconds
14:Pr 15 15 minutes
button to confirm that you want to store your new Installer Set-Up
or
Optional Setting
button to access this category)
1 Enabled
1 Programmer only. Transmits demand
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
button.
DO NOT CHANGE
16/09/2008 10:06:31