OM WGS-5 WGS 130A to 190A 79
Screen Definitions – SET
Unit Set Points
SET UNIT SPs (1)
Enable=On
Mode= COOL
Source = KEYPAD
Unit Enable settings can be OFF and ON as determined from the Unit Enable setpoint.
Unit Enable is an external signal or a keypad setting that keeps the unit off when the setting
is OFF and allows it to run if there is a call for cooling when the setting is ON. The source
for the signal is selected in the 4
th
line and can be:
1. KEYPAD, in which case the selection is made in line 2 and would be normally selected
as ON. This is the normal setting when no external signals are controlling the unit.
2. SWITCHES, in which an external switch is wired across terminals #60 and #66. (See
wiring diagram page 8 or 9.)
3. NETWORK, used with BAS signal, which is wired to the three com
munication ports.
Unit Mode settings can be
1. COOL, normal setting used with chilled water air-condition applications.
2. COOL w/GLYCOL, used with low temperature, glycol applications. It allows a lower
LWT setpoint to be used.
3. ICE w/GLYCOL, used with ice storage systems, allows changing from chilled glycol
operation to lower temperature ICE operation. In ICE, the unit runs at full load until the
ICE setpoint is reached, at which time the unit shuts off. A three-position switch wired
to terminals #60 and #68 initiates the change from glycol cooling to making ice. (See
wiring diagrams on page 8 or 9.)
Unit
Mode settings can be COOL COOLw/Glycol, or ICEw/Glycol, as determined from the
Unit Mode setpoint.
Source settings can be KEYPAD, SWITCHES, or NETWORK as determined from the
Mode Source setpoint.
SET UNIT SPs (2)
Available Modes
= COOL
Select w/Unit Off
SET UNIT SPs (3)
Cool LWT = XX.XF
Ice LWT = XX.XF
StartDelta=XX.XF
SET UNIT SPs (4)
StopDelta= X.XF
Stg Up Delta= X.XF
Stg Down Delta=X.XF
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