JOHNSON CONTROLS
88
FORM 201.30-ICOM1 (519)
ISSUE DATE: 05/22/2019
SECTION 6 - OPERATION
• Remote Current Limit Analog Reset: Set the
CURRENT LIMIT setpoint via the REMOTE
CURRENT LIMIT analog input. A zero signal in-
put (0% ) equates to the maximum current limit
setpoint as dened under the PROGRAM key
CURRENT LIMIT setpoint. A full scale signal in-
put (100% input) equates to the minimum current
limit setpoint as dened under the PROGRAM
key CURRENT LIMIT setpoint. The current lim-
it value is linear and may be adjusted anywhere
between the maximum and minimum points of
0% (no offset) and 100% (max. current limiting).
This input may be used in LOCAL or REMOTE
CONTROL MODE. This input will be ignored if
the REMOTE CURRENT LIMIT is disabled un-
der the OPTIONS key. Once a change to the input
is registered, a timer is set to the value of the RE-
MOTE INPUTS SERVICE TIME as programma-
ble under the UNIT SETUP MODE at the factory
for the default value of 15 minutes. The low limit
is five minutes, and the high limit is 60 minutes.
The remote input will be ignored until this timer
expires. The timer assures that rapid changes in
a remote reset signal don’t result in poor tem-
perature control or excessive compressor cycling.
In most instances, this timer will not need to be
changed, since reset more often than 15 minutes
will create problems with chilled liquid tempera-
ture control. Contact a Johnson Controls Factory
Service Center if a timer change is required.
USER INTERFACE
The keys, detailed in the following pages, provide vari-
ous displays of unit related data. Press the▲ or ▼ key
repeatedly to select multiple display messages. The
display messages that contain a number symbol (#)
will be replaced with the chiller's present value, which
are listed below:
• ###.# °F = Temperature Data
• ####.# % = Percent (0 to 100%)
• ### = :
• Time Data, i.e. seconds (SEC)
• PSIG/PSID = Pressure Gauge/
Pressure Difference
• Hz = Hertz
• AMPS = Amperage
• FLA = Full Load Amperage
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