FORM 155.21-O1 (615)
27
JOHNSON CONTROLS
2
Login
Access level required: View
This key is displayed when the user is NOT logged in.
Pressing the login key will bring up a login screen, al-
lowing OPERATOR and SERVICE access level.
Logout
Access Level Required: OPERATOR or SERVICE
This key is displayed when a user is logged in at any
level other than VIEW. Pressing it will return the access
level to VIEW.
Print
Access Level Required: VIEW
Use this key to generate a hard-copy report of the present
system status. This provides a snapshot of the primary
operating conditions at the time the key is pressed.
Warning Reset
Access Level Required: OPERATOR or SERVICE
Use of this key acknowledges a warning condition and
resets the message display associated with it, if the in-
stigating condition is no longer present.
Soft Shutdown
Access Level Required: OPERATOR
Use of this key initiates a gradual shutdown of the chiller,
closing the steam/hot water control valve according to
the programmable rampdown schedule prior to exiting
system run status.
Navigation
Evaporator / Absorber
Causes an instant return to a detailed view of all Evapo-
rator and Absorber parameters, including the program-
mable Leaving Chilled Liquid Setpoints.
Generator / Condenser
Causes an instant return to a detailed view of all Gen-
erator and Condenser parameters, including Generator
pressure, Steam temperature and pressure, and Solution
temperature and concentration.
System
Causes an instant return to a detailed view of the status
of System Pumps, Liquid Flow details, Solenoid Valves,
and Level Switches. Manual operation of these devices
is from here.
Purge
Causes an instant return to a detailed view of Purge
Pump, Valve status & Purge Tank pressures, Auto-
Manual purge counters, & Purge mode. Purge trend is
accessed from here.
Control Valve
Causes an instant return to a detailed view of Steam
/ Hot Water Control Valve specics and associated
calibration.
Setpoints
Causes an instant return to a single location to program
the most common system setpoints. It is also the gateway
to many of the general system setup parameters such as
Date/Time, Display Units, Scheduling, Printer Setup,
etc.
Sales Order
Causes an instant return to a detailed view for the spe-
cics of the Absorption Unit, including Model, Serial
number, & capacities. Conguration can be accessed
from here in SERVICE access.
History
Causes an instant return to a screen that provides ac-
cess to a snapshot of system data at each of the last 10
safety shutdowns, cycling shutdowns, start inhibits and
warning conditions. Graphic system trending is accessed
from here.
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