EXCEL 10 HAND HELD TOOL
Page 13
74-2566
Temp Setpoints
Select the Temp Setpoints menu item using the Up/Down Arrow keys and then press the Enter key. Under the Temp
Setpoints heading the operator is able to display/modify the current value of the points listed in the Temp Setpoints table
shown below, see Table 5.
This table shows that an operator must be logged on as a level 2 operator in order to modify the setpoint values. If the
operator has logged onto a level less than level 2, then the screen displays only the data and engineering units for that point
as shown in the previous screen view for the Room Temp.
Table 5. Temp Setpoints.
HHT Point Name
R/W Read Write or R/O Read Only
Write Access Level
Input/ Output
Occupied Cool
R/W
2
Input
Standby Cool
R/W
2
Input
Unoccupied Cool
R/W
2
Input
Occupied Heat
R/W
2
Input
Heat/Cool Deadband
R/W
2
Input
Standby Heat
R/W
2
Input
Unoccupied Heat
R/W
2
Input
Select the Occupied Cool setpoint menu item using the Up/Down Arrow keys and then press the Enter key. If the operator
has logged on as a level 2 operator, the following screen displays the setpoint value and engineering unit for the Occupied
Cool setpoint and prompts the operator for a new setpoint value.
O c c u p i e d C o o l
Setpoint is 72.0
D e g F
New setpoint ?
The operator can either press the Prev Menu key to go back to the previous menu and use the Up/Down Arrow keys to
display a different setpoint or can enter a new setpoint value, for this point, and then press the Enter key to accept the new
value. When the Enter key is pressed, the HHT limits the ranges to the following:
Temperature setpoints:
50 through 90
°
F (10 through 32.2
°
C)
Heat/Cool Deadband:
0 through 10
°
F (-17.8 through -12.2
°
C)
The HHT enforces the following relationships (when the Enter key is pressed):
Setpoint Value range of 40 to 90
°
F (4 to 32
°
C)
Heating Unoccupied < Heating Standby
Heating Standby < Heating Occupied
Heating Occupied < Cooling Occupied
Cooling Occupied < Cooling Standby
Cooling Standby < Cooling Unoccupied
Excel 10 defaults:
Occupied Cool:
72
°
F (22.2
°
C)
Standby Cool:
75
°
F (23.9
°
C)
Unoccupied Cool:
85
°
F (29.4
°
C)
Occupied Heat:
70
°
F (21
°
C)
Heat/Cool Deadband:
2
°
F (-16.7
°
C)
