10
MS4PMUHVT Multi-Stage Electronic Temperature Control with Relay Pack Product/Technical Bulletin
Programming the Control
Use this section to program the control module. After
programming, the control module retains its
programmed settings, even in the event of a power
failure or power-down.
Using the Control Module
During normal operation, the display shows the main
sensor temperature. See Figure 2.
Press Up or Down repeatedly to display the main
sensor temperature, auxiliary sensor temperature
and the binary input status.
Press Enter to display the Setpoint value.
After 15 seconds of inactivity, the display returns to
main sensor temperature.
Unlocking or Locking Access to Programming
1. In sequence, press and hold Enter, Up,
and Down.
2.
Hold these buttons until “- - -” displays.
3. Continue holding until the main sensor
temperature displays (approximately
10 seconds).
Selecting the Mode of Operation
1.
At the same time, press and hold
Enter and Down for approximately
three seconds.
2.
Press Up or Down until the display
code for the desired mode displays:
4d = Direct mode (cooling)
4r = Reverse mode (heating)
4b = Deadband mode (both)
4i = Independent Setpoint mode (both)
3.
Press Enter to save the new setting.
Note:
If Enter is not pressed, the new mode of
operation is not saved, and the control reverts to the
previous mode of operation.
Changing the Setpoint in Direct, Reverse, and
Deadband Modes
1. Press and hold Enter for
approximately three seconds.
2.
Release Enter when the new Setpoint
value displays.
3.
Press Up or Down to display the new
Setpoint value.
4.
Press Enter to save the new setting.
Note:
If Enter is not pressed, the new Setpoint
value is not saved, and the control reverts to the
previous Setpoint value.
Changing the Setpoint in Independent Setpoint
Mode and Changing Other Function Settings in
All Modes
1. Press and hold Enter for about 10
seconds. The display changes to HY.
(The display shows S1 if in Mode 4i.)
2.
Press Up or Down until the desired
function displays. See Table 4
and
Control Functions.
3.
Press Enter. The function’s existing
value displays.
4.
Press Up or Down until the desired
setting value displays.
5.
Press Enter to save the new value.
After 10 seconds of inactivity, the
display returns to normal operation.
Note:
If Enter is not pressed, the new value is not
saved, and the control reverts to the previous saved
value.
Initiating a Manual Self-Test
IMPORTANT:
Disconnect controlled loads
before running the self-test procedure. Reconnect
controlled loads and cycle power to resume normal
operation.
1. In sequence, press and hold Up and
then Down.
2. Hold for five seconds.
