Category 2 - System Settings - Hitachi ATW-RTU-01 Installation And Operation Manual

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
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
Factory Default Setting
No.
button to access this category)
4:HC 0 Disabled
8:Su 0 Programmer and room
compensation unit
(ON/OFF receiver)
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
Optional Setting
1
1
0 to 99
0 to 50
0 to
240
0 to 99
or button.
Enabled
For Extension controller
0°C to 99°C adjustment in 1°C steps
0°C to 50°C adjustment in 1°C steps
0 to 240 sec. adjustment in 1sec
steps
0 to 99 mins adjustment in 1min steps