Quantech QWC3050T-200T, Installation Operation & Maintenance

Page: 130 / 186

FORM QWC3-NM1
ISSUE DATE: 11/20/2020
SECTION 7 – UNIT CONTROLS
QUANTECH
130
Programming of the cooling setpoints, daily schedule,
and safeties is accomplished by using the keys located
under the SETPOINTS section.
The three keys involved are labeled COOLING
SETPOINTS, SCHEDULE/ADVANCE DAY, and
PROGRAM.
Following are instructions for programming the respec-
tive setpoints. The same instruction should be used to
view the setpoints with the exception that the setpoint
will not be changed.
Cooling Setpoints
The Cooling Setpoint and Range can be programmed
by pressing the COOLING SETPOINTS key. The
cooling mode (leaving chilled liquid or return chilled
liquid) will be displayed for a few seconds, and the set-
point display entry screen will appear.
SETPOINTS KEYS
00069VIP
Leaving Chilled Liquid Control
S E T P O I N T = 4 5 . 0 ° F
R A N G E = +/- 2 . 0 ° F
The above message shows the current chilled water
temperature SETPOINT at 45.0 °F (notice the cursor
positioned under the number 0). Pressing either the ↑
(UP) or ↓ (DOWN) arrow will change the setpoint in .5
°F increments. After using the ↑ (UP) or ↓ (DOWN) ar -
row keys to adjust to the desired setpoint, the ENTER/
ADV key must be pressed to enter this number into
memory and advance to the RANGE SETPOINT.
Entry of the setpoint will be indicated by the cursor
moving under the current RANGE setpoint. The ↑ (UP)
and ↓ (DOWN) arrow keys are used to set the RANGE,
in .5 °F increments, to the desired RANGE setpoint.
After adjusting the setpoint, the ENTER/ADV key
must be pressed to enter the data into memory.
Notice that the RANGE was programmed for +/- X.X°
F. This indicates the SETPOINT to be in the center of
the control range. If the control mode has been pro-
grammed for RETURN LIQUID control, the message
below would be displayed in place of the previous
message.