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4.2.10 SETPOINTS
The default setpoint for all points are listed below. All setpoints are user changeable within the
ranges listed.
Occupied Heating Setpoint Default 70.0 F
o
Range 60.0 - 70.0 F
o
Unoccupied Heating Setpoint Default 68.0 F
o
Range 55.0 - 70.0 F
o
Occupied Cooling Setpoint Default 75.0 F
o
Range 72.0 - 80.0 F
o
Unoccupied Cooling Setpoint Default 80.0 F
o
Range 72.0 - 85.0 F
o
High Temperature Alarm Setpoint Default 90.0 F
o
Range 80.0 - 100.0 F
o
Low Temperature Alarm Setpoint Default 56.0 F
o
Range 45.0 - 67.0 F
o
High Humidity Alarm Setpoint Default 60 % RH Range 55 % - 85 %
RH
Low Humidity Alarm Setpoint Default 20 % RH Range 5 % - 35 %
RH
Changeover Hours Default 24 Hrs Range 24 - 168 Hrs
Enthalpy / Free Cooling Setpoint Default 23.0 Btu/lb Range 5.00 – 40.00
Btu/lb
Drybulb / Free Cooling Setpoint Default 48.0 F
o
Range 40.0 - 80.0 F
o
Dehumidification Setpoint Default 50 % RH Range 50 % - 70 %
RH
Dehumidification Heating Setpoint Default 70.0 F
o
Range Fixed, Not
adjustable
Dehumidification Cooling Setpoint Default 73.0 F
o
Range Fixed, Not
adjustable
5.0 DISPLAY & KEYPAD OPERATION (DAK)
The display and keypad (DAK) is used to monitor and change parameters in the controller. If
DAK is needed it must be ordered as part of the TCS22. It cannot be ordered separately at a later date.
5.1 Display & Keypad Physicals
The display and keypad (DAK) consists of a 4 line by 20 character backlit LCD display, 13 key
keypad and 5 indicating LEDs.
All messages displayed on the DAK are uploaded from the 7040 controller at power up. The
LCD display uses a simple page menu system to display all functions.
The keypad consists of keys labeled <F1 >, <F2>, <F3>, <F4>, <//>, <Left>, <Up>, <Down>,
<Right>,and <Enter>. The specific function of these keys is preprogrammed and not user configurable.
The <?>, <|>, and <I> keys are not programmed and serve no function in this application..
In general the keys have the following functions. The <Up>, <Left>, <Down>, <Right> keys
are used to navigate through the 7 screens, increment or decrement values, and choose which digit or
letter to change. The <Enter > Key is used to select a choice or accept the changes. The < F1 > key is
used to enter change mode to change setpoints, passwords, or lead/ lag units. The function of each of the
keys depends on were you are in the menu tree. The <F2> key is used to enter passwords. The <//> key