Schedule Function - Carrier Ecologic 30GX080-265 Controls, Start-Up, Operation, Service, And Troubleshooting

SCHEDULE FUNCTION — This function provides a means
to automatically switch the chiller from an occupied mode
to an unoccupied mode. Refer to Table 24 for a complete
description of the function.
The schedules consist of 8 user-configurable occupied time
periods. The control supports time schedules for local con-
trol, remote control and ice building. These time periods can
be flagged to be in effect or not in effect on each day of the
week. The day begins at 00.00 and ends at 24.00. The ma-
chine is in unoccupied mode unless a scheduled time period
is in effect. If an occupied period is to extend past midnight,
it must be programmed in the following manner: occupied
period must end at 24:00 hours (midnight); a new occupied
period must be programmed to begin at 00:00 hours.
NOTE: This is true only if the occupied period starts at 00:00
(midnight). If the occupied period starts at a time other than
midnight, then the occupied period must end at 24:00 hours
(midnight) and new occupied period must be programmed
to start at 00:00 in order for the chiller to stay in the occu-
pied mode past midnight. Each time schedule can be over-
ridden to keep the chiller in an Occupied mode for 1, 2, 3 or
4 hours on a one-time basis.
Table 23 — Entering Configuration Codes
KEYPAD ENTRY DISPLAY RESPONSE
FACTORY CODES
Configuration Code 1
00000000
Configuration Code 1
21660010
Configuration Code 2
00000000
Configuration Code 2
13900000
Configuration Code 3
00000000
Configuration Code 3
00000200
SERVICE CODES
Configuration Code 4
00000000
Configuration Code 4
12200521
Configuration Code 5
00000000
Configuration Code 5
00000058
Dual Set Point Control — This feature can be enabled to
allow the use of a second or unoccupied cooling set point.
The function can be either switch controlled or clock con-
trolled. To enable switch control, set the Cooling Setpoint
selection under
Wiring section, depending on unit type, for switch input wir-
ing to the PSIO-2 module. Configure Cool Setpoint 2 under
to the desired value. The unit will then control leav-
ing water temperature to Cool Setpoint 2 when the switch
input is closed. To enable clock control, set the Cooling
Setpoint selection under
the desired unoccupied value. Using
cal operating schedules for the desired occupied and unoc-
cupied time periods. The unit will then control leaving water
temperature to Cool Setpoint 2 during unoccupied time
periods.
37
to 1. See page 72 or 73 of Field
to 2. Set Cool Setpoint 2 to
, configure lo-