Carrier 30XW - Control Point

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7.6 - Control point
The control point represents the water temperature that the
unit must produce. It enables to decrease the required
capacity depending on the unit load operating conditions.
Control point = Active setpoint + Reset
The control point is calculated based on the active setpoint
and the reset calculation. The forced value can be used
instead of any other setpoint calculation only when the unit
is in the Network operating type.
7.6.1 - Active setpoint
Two setpoints can be selected. Depending on the current
operation type, the active setpoint can be selected manually
in the Main menu (GENUNIT – General Parameters), with
the volt-free user contacts, with network commands (CCN
or BACnet) or automatically with the setpoint time schedule
(schedule 2).
LOCAL OPERATING TYPE
Parameter status
Active setpoint
Heating/cooling
operating mode
Setpoint selection Heating/Cooling
selection in local mode
Ice storage

Setpoint switch Schedule 2 status
cooling csp1 - * * - cooling setpoint 1
cooling csp2 no * * - cooling setpoint 2
cooling csp2 yes closed * cooling setpoint 2
cooling csp2 yes open * ice storage setpoint
cooling auto - * * occupied cooling setpoint 1
cooling auto no * * unoccupied cooling setpoint 2
cooling auto yes closed * unoccupied cooling setpoint 2
cooling auto yes open * unoccupied ice storage setpoint
heating hsp1 - * * - heating setpoint 1
heating hsp2 - * * - heating setpoint 2
heating auto - * * occupied heating setpoint 1
heating auto - * * unoccupied heating setpoint 2
*Any conguration, (-) default conguration.
REMOTE OPERATING TYPE
Parameter status
Active setpoint
Heating/cooling
operating mode
Setpoint selection  Ice done contact Setpoint switch Schedule 2 status
cooling - - * open - cooling setpoint 1
cooling - no * closed - cooling setpoint 2
cooling - yes closed closed - cooling setpoint 2
cooling - yes open closed - ice storage setpoint
heating - - * open - heating setpoint 1
heating - - * closed - heating setpoint 2
*Any conguration, (-) default conguration.
NETWORK OPERATING TYPE
Parameter status
Active setpoint
Heating/cooling
operating mode
Setpoint selection  Ice done contact Setpoint switch Schedule 2 status
cooling - - * * occupied cooling setpoint 1
cooling - - * * unoccupied cooling setpoint 2
heating - - * * occupied heating setpoint 1
heating - - * * unoccupied heating setpoint 2
*Any conguration, (-) default conguration.
NOTE: Ice storage conguration and ice done contact apply only to units with the optional energy management module.
The following tables summarise possible selections depending
on the control type (Local, Remote or Network) and the
following parameters:
• Heating or Cooling operating mode: Heat/Cool select
(GENUNIT menu)
• Setpoint selected via the Touch Pilot user interface:
Setpoint select permits selection of the active setpoint
if the unit is in the Local operating type (GENUNIT
menu)
• Setpoint switch status: Remote setpoint switch
(INPUTS menu)
• Schedule 2 status: Schedule for setpoint selection