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
.
Note
Remember to always press the green
button to confirm that you want to store your new Installer Set-Up
setting. To exit the Installer Mode press the
or
button.
Parameter
Parameter
No.
Factory Default Setting
Optional Setting
Category 2 Parameters – System Settings (press the button to access this category)
Heat/Cool selection
enable / disable
4:HC
0
Disabled
1
Enabled
Room Temperature
Sensor Use
8:Su
0
Programmer and
room compensation
unit
1
Programmer only. Transmits demand
and room setpoint (no temperature
displayed)
Maximum Flow
Setpoint (extension
systems only)
11:uF
55
55°C Maximum Flow
Temp.
0 to 99 0°C to 99°C adjustment in 1°C steps
Minimum Flow
Setpoint (extension
systems only)
12:LF
15
15°C Minimum Flow
Temp.
0 to 50 0°C to 50°C adjustment in 1°C steps
Mixing Value Run
Time (extension
systems only)
13:Ar
150
150 seconds
0 to
240
0 to 240 sec. adjustment in 1sec
steps
Pump Overrun Run
Time (extension
systems only)
14:Pr
15
15 minutes
0 to 99 0 to 99 mins adjustment in 1min steps
Installation and Operation Manual
Summary of Contents for ATW-RTU-02
Page 112: ...PMML0213 rev 0 11 2010 ...
