Category 2 - System Settings - Hitachi System MMI Pack Guia De Instalacion

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 11:uF
Setpoint (extension
systems only)
Minimum Flow 12:LF
Setpoint (extension
systems only)
Mixing Value Run 13:Ar
Time (extension
systems only)
Pump Overrun Run 14:Pr
Time (extension
systems only)
Note
Remember to always press the green
setting. To exit the Installer Mode press the
Factory Default Setting
button to access this category)
0 Disabled
0 Programmer and
room compensation
unit
55 55°C Maximum Flow
Temp.
15 15°C Minimum Flow
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
DO NOT CHANGE
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