McQuay WSC Operating Manual page 44

b) Depending on the top-level selected, a second level of screens will appear. For example,
c) After selecting this second level, the desired screen can be acquired using the arrow keys.
Pressing the MENU key from any menu screen will automatically return you to the MENU mode.
Figure 28, Typical Menu Display and Keypad Layout
Screen Content
Figure 29, View Screens
VIEW UNIT VIEW UNIT
STATUS (1) WATER ° F (1).
Unit = COOL . In Out Delta
Compressor 1=X Evap
Ev/Cn Pmps= / Cond
VIEW UNIT VIEW UNIT
STATUS (2) WATER ° F . (2)
Compressor 2=X . In Out Delta
Start-Start Tmr= HtRc
Inhibit Oil Temp Cond XX XX XX
VIEW UNIT
WATER
Water Flo Rates
Evap = XXX
Cond = XXX
Alarm Screens
ALARM LOG (1) ACTIVE
Description ALARM
.Time Date .Time
Fault
Description....
ALARM LOG (2)
Description
Time Date
ALARM LOG (N)
Description
Time Date
44
selecting ALARM will go the next level of menus under ALARM (ALARM LOG or
ACTIVE ALARM). Selecting VIEW will go the next level of menus (VIEW
COMPRESSOR STATUS, VIEW UNIT STATUS, VIEW EVAPORATOR, or VIEW
CONDENSER). Selecting SET will go to a series of menus for looking at and changing
setpoints.
A typical final screen is shown below.
Air Conditioning
VIEW UNIT STATUS
Unit = COOL
Compr. #1/#2=OFF/OFF
Evap Pump = RUN
ARROW Keys
VIEW UNIT VIEW UNIT
REFRG (1) . TOWER(1)
. ° psi F Stages ON= of
Sat Evap EntCondTemp=
Sat Cond Setpoint=
VIEW UNIT VIEW UNIT
REFRG (2) TOWER(2)
Suct Line = Bypass Valve =
Liquid Line = VFD Speed
Lift Press =
. (3)
Date
MENU Key
ENTER Key
VIEW COMP #1 VIEW COMP #2
(1) (1)
State = State =
% RLA = %. % RLA =
Evap LWT = ° F Evap LWT = ° F
VIEW COMP VIEW COMP #2
(2) (2)
Cond Press = Cond Press =
= Evap Press = Evap Press =
Lift Press = Lift Press
VIEW COMP VIEW COMP #2
(3) (3)
Feed Press = Vent Press =
Sump Press = Feed Press =
Net Press = Net Press
VIEW COMP VIEW COMP #2
(4) (4)
Sump Temp = Sump Temp =
Feed Temp = Feed Temp
Lift Temp Lift Temp
VIEW COMP VIEW COMP #2
(5) . (5) .
Temp SH Temp SH
Suction ° F ° F Suction ° F
Dischrg ° F ° F Dischrg ° F
VIEW COMP VIEW COMP #2
(6) . . (6) .
Psi ° F Psi ° F
Sat Evap Sat Evap
Sat Cond Sat Cond
VIEW COMP VIEW COMP #2
(7) (7)
Hours = Hours =
Starts = Starts =
VIEW VIEW
EVAPORATOR CONDENSER
Suct SH = Disch SH =
%. Approach = Approach =
. Subcooling=
=
=
=
° F
° F
OM Centrif Micro ΙΙ-5