SECTION 7 – UNIT CONTROLS
FORM QWC3-NM1
ISSUE DATE:11/20/2020
QUANTECH
127
7
F A N C O N T R O L O N
P R E S S U R E = X X X P S I G
Displays the programmed Fan On Pressure.
F A N D I F F E R E N T I A L O F F
P R E S S U R E = P S I G
This message does not apply to a QWC3 chiller.
S Y S 1 T R I P V O L T S
= X . X V O L T S
Displays the programmed High Current Trip Voltage.
S Y S 2 T R I P V O L T S
= X . X V O L T S
Displays the programmed High Current Trip Voltage.
Y O R K H Y D R O
K I T P U M P S = X
Indicates the Pump Control option is selected.
L C H L T = X X X . X ° F
R C H L T = X X X . X ° F
Displays the Leaving and Return chilled Liquid Tem-
perature at the time of the fault.
S E T P O I N T = X X X . X ° F
R A N G E = + / - ° F
Displays the programmed Setpoint and Range, if the
chiller is programmed for leaving chilled liquid con-
trol.
S E T P O I N T = X X X . X ° F
R A N G E = + X X . X ° F
Displays the programmed Setpoint and Range, if the
chiller is programmed for return chilled liquid control.
A M B I E N T A I R T E M P
= X X X . X ° F
Displays the Ambient Temp. at the time of the fault.
L E A D S Y S T E M I S
S Y S T E M N U M B E R X
Displays Local or Remote control selection.
C O N T R O L M O D E
L E A V I N G L I Q U I D
Displays the type of chilled liquid control; Leaving or
Return.
L E A D / L A G C O N T R O L
X X X X X X X X
Displays the type of lead/lag control; Manual System
1, Manual System 2 or Automatic. This is only select-
able on 2-system chillers.
F A N C O N T R O L
D I S C H A R G E P R E S S U R E
This message does not apply to a QWC3 chiller.
M A N U A L O V E R R I D E M O D E
X X X X X X X X X
Displays whether Manual Override was Enabled or
Disabled.
C U R R E N T F E E D B A C K
X X X X X X X X X X X X X X X X
Displays type of Current Feedback utilized.
S O F T S T A R T
X X X X X X X
Displays whether the optional European Soft Start was
installed and selected.
D I S C H A R G E P R E S S U R E
C U T O U T = X X X X P S I G
Displays the programmed Discharge Pressure Cutout.
S U C T I O N P R E S S U R E
C U T O U T = X X X X P S I G
Displays the programmed Suction Pressure Cutout.
L O W A M B I E N T T E M P
C U T O U T = X X X . X ° F
Displays the programmed Low Ambient Cutout.
L E A V I N G L I Q U I D T E M P
C U T O U T = X X X . X ° F
Displays the Leaving Liquid Temp. Cutout pro-
grammed.
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