28
WGS 130A to 190A
OM WGS-5
Unit Controller
Unit Inputs/Outputs
Table 1, Analog Inputs
# Description
Signal
Source
Range
1
Condenser EWT or Outdoor
Ambient Temp.
Thermister (10k@25°C)
-58 to 212°F
2
Demand Limit
4-20 mA Current
0 to 100% limit
3
Chilled Water Reset
4-20 mA Current
0 to 10 degrees
60
F max.
4
Leaving Evaporator Water Temp.
Thermister (10k@25°C)
-58 to 212°F
5
Entering Evaporator Water Temp.
Thermister (10k@25°C)
-58 to 212°F
C1 = Refrigerant Circuit #1, C2 = Refrigerant Circuit #2, UT = Unit
Table 2, Analog Outputs
# Description
Output
Signal
Range
1
Cooling Tower Bypass Valve Position
0 to 10 VDC
0 to 100%
2
Cooling Tower VFD Speed
0 to 10 VDC
0 to 100%
3
Open
4
Open
Table 3, Digital Inputs
# Description
Signal Signal
1
Unit Switch
0 VAC (Stop)
24 VAC (On)
2
Remote Switch
0 VAC (Stop)
24 VAC (Start)
3
Evaporator Water Flow Switch
0 VAC (No Flow)
24 VAC (Flow)
4
Mode Switch
0 VAC (Cool)
24 VAC (Ice)
5
Condenser Water Flow Switch
0 VAC (No Flow)
24 VAC (Flow)
6
Open
7
Open
8
Open
Table 4, Digital Outputs
#
Description
Load
Output OFF
Output ON
1
Evaporator Water Pump 1
Pump Contactor
Pump OFF
Pump ON
2
Evaporator Water Pump 2
Pump Contactor
Pump OFF
Pump ON
3
Condenser Water Pump 1
Pump Contactor
Pump OFF
Pump ON
4
Condenser Water Pump 2
Pump Contactor
Pump OFF
Pump ON
5
Tower Fan 1
Fan Contactor
Fan OFF
Fan ON
6
Tower Fan 2
Fan Contactor
Fan OFF
Fan ON
7
Remote Run Status
All Circuits Off
Any Circuit On
8
Alarm
Remote Alarm
No alarm
Stop alarm
Unit Setpoints
The following parameters are retained during power off, are factory set to the
Default
value,
and can be adjusted to any value in the
Range
column.
The
Type
defines whether the setpoint is part of a coordinated set of duplicate setpoints in
different controllers. Types are as follows:
N = Normal setpoint – Not copied from, or copied to, any other controller
M = Master setpoint – Setpoint is copied to all controllers in the “Sent To” column
The
PW
(password) column indicates the password level that must be active in order to
change the setpoint. Passwords are as follows:
O = Operator [0100]
M = Manager (8745)
Содержание WGS130AA: WGS140AW
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