Unit Controller Setpoints - McQuay WSC Operating Manual

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Unit Controller Setpoints

Table 23, Unit Setpoints
Unit
Unit Enable
WCC Off
Unit Mode
Available Modes
Mode Source
Display Units
Language
BAS Protocol
Hot Gas Mode
Hot Gas Control Point
Leaving Water
Cool LWT
Ice LWT
Heat LWT
Startup Delta T
Shutdown Delta T
LWT Reset Type
Max Reset Delta T
Start Reset Delta T
Electronic Expansion Valve
Ex Valve Gain
Offset (Slpoe)
Prs Ctrl DOut
Templifier
Source Water Reset
Timers
Evap Recirculate
Pumps
Evap Pump
Cond Pump
Cooling Tower
Tower Control
Tower Stages
Stage Up Time
Stage Down Time
Stage Differential (Temp)
Stage Differential (Lift)
Stage #1 On (Temp)
Stage #2 On (Temp)
Stage #3 On (Temp)
Stage #4 On (Temp)
Stage #1 On (Lift)
Stage #2 On (Lift)
Stage #3 On (Lift)
Stage #4 On (Lift)
Cooling TowerValve / VFD
Valve/VFD Control
Valve Setpoint (Temp)
Valve Setpoint (Lift)
Valve Deadband (Temp)
Valve Deadband (Lift)
Note 1: Through Version C, minimum range value was 1.0°F.
Note 2: Through Version C, minimum range value was 1.0 psi.
OM Centrif Micro ΙΙ-5
Description Default
OFF
COOL
COOL
Local
°F/psi
ENGLISH
NONE
OFF
30%
44. 0°F
25. 0°F
135. 0°F
3.0°F
3.0°F
NONE
0.0°F
10. 0°F
100
271
10°F
80 °F
30 sec
Pump #1
Only
Pump #1
Only
None
2 min
5 min
3.0 °F
6.0 psi
70 °F
75 °F
80 °F
85 °F
35 psi
45 psi
55 psi
65 psi
None
65 °F
30 psi
2.0 °F
4.0 psi
OFF, ON
Off OFF, ON
COOL, ICE, HEAT, TEST
COOL, COOL/ICE, ICE, COOL/HEAT, HEAT
LOCAL, BAS, SWITCH
ENGLISH, (TBD)
LOCAL, REMOTE, BACnet MSTP, BACnet
ETHERNET, BACnet TCP/IP, MODBUS
OFF, %RLA, LWT
20 to 70%
35.0 to 80.0 °F
15.0 to 35.0 °F
100.0 to 150.0 °F
0.0 to 10.0 °F
0.0 to 3.0 °F
NONE, RETURN, 4-20mA
0.0 to 20.0 °F
0.0 to 20.0 °F
50 to 400
100 to 999
0 to 99.9°F
50 to 100 °F
0.2 to 5 min
Pump #1 Only, Pump #2 Only, Auto Lead, #1
Primary, #2 Primary
Pump #1 Only, Pump #2 Only, Auto Lead, #1
Primary, #2 Primary
None, Temperature, Lift
2
1 to 60 min
1 to 60 min
1.0 to 10.0 °F
1.0 to 20.0 psi
40 to 120 °F
40 to 120 °F
40 to 120 °F
40 to 120 °F
10 to 130 psi
10 to 130 psi
10 to 130 psi
10 to 130 psi
None, Valve Setpoint, Valve Stage, VFD
Stage, Valve SP/VFD Stage
40 to 120 °F
10 to 130 psi
0.1 to 10.0 °F (Note 1)
0.1 to 20.0 psi (Note 2)
Range
°F/psi
1 to 4
PW
O
O
O
T
T
O
O
O
M
M
M
O
O
O
O
O
M
M
M
M
M
M
T
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
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