IM
1133-C
DIII-NET COMMUNICATION GATEWAY
32
www.DaikinApplied.com
Adjusting Setpoints
Note:
This only applies if ‘Std’ or ‘USw/Spt’ is selected for iTouch Version. Refer to DIII-Net Communication Gateway
Addressing section for more information.
The discharge air temperature setpoint cannot be adjusted with ‘USw/oSpt’
selected.
The iTouch Manager adjusts the active setpoint of an AHU. If the unit is in cooling mode, the iTM will adjust the cooling
setpoint, if the unit is in heating mode the heating setpoint will be adjusted. If the control temperature is satisfied within the
unit’s deadband, the unit will switch to Fan Only mode and the setpoints cannot be adjusted.
1.
Access the Indoor Devices list. See previous section, “Turning a Unit on and Off” steps 1 and 2.
2.
Press “Cool Setpoint” or “Heat Setpoint.” See Figure 50. The setpoint adjusted will be the active setpoint, regardless of
whether “Cool Setpoint” or “Heat Setpoint” is selected.
Figure 50, Adjusting Setpoints from the iTouch Manager
3.
Select the desired setpoint. The other setpoint should change to match the previously adjusted setpoint in a couple
minutes.
Changing Fan Speed
Note:
The Fan Speed can only be adjusted if a variable frequency drive (VFD) is being used. If the Supply Air Fan (SAF)
control is set to Constant Air Volume (CAV), this feature will be disabled.
The iTouch Manager gives user the ability to adjust the fan speed of a unit to High, Medium or Low. To set the high, med and
low speeds as a percentage of the Supply Fan’s maximum speed, see section “
Configuring the DIII Board Using the MicroTech
III Keypad and Display
” Refer to manual OM 920 (available at
www.DaikinApplied.com
) for more information about
MicroTech III unit controller operation.
1.
Access the Indoor Devices list. See section “Turning a Unit On and Off” steps 1 and 2.
2.
Select the Unit to be adjusted.
3.
Use the up and down arrows next to the Fan Speed icon to change the fan speed. See Figure 51.
Selected Unit
Cool/Heat
Setpoint
