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SECTION 33 - SYSTEM CALIBRATION, SERVICE SETPOINTS, AND RESET PROCEDURES
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
JCI COMPANY CONFIDENTIAL
33
Microboard 031-02430-001 must be equipped with the
128K BRAM (031-02565-000). With this Microboard,
Program Jumpers JP14 (BRAM size) for the 02430
and JP17 (COM 2 Serial Mode must be set to Pins 1-2
for RS-485.
1. Chiller must be stopped and RUN switch
must be in Stop-Reset position.
2. Select SETUP Screen.
3. Press CHANGE SETTINGS key.
4. A green box will appear around the first
changeable setpoint. Use ▲▼ keys to place
box around the Motor Communications Pro-
tocol setpoint.
5. Press
key. A dialog box will appear with
the range of settings. Use ◄ ► keys to select
“YORK” or Modbus, as appropriate.
6. Press ENTER (
) key.
Motor Node ID
(Software version C.OPT.01.16.xxx (and later))
Only displayed when Modbus is selected for the Motor
Communications Protocol setpoint above. The Motor
Node ID must be set to match the setting of the VSD
Logic Board Modbus Address Switch SW3. The ad-
dress assigned to the VSD Logic Board is “1”. This
is done by placing the VSD Logic Board Modbus Ad-
dress Switch SW3 position 1 to "ON" with all other
positions to OFF, and setting this setpoint to “1.
1. Chiller must be stopped and RUN switch must be
in Stop-Reset position.
2. Select SETUP Screen.
3. Press CHANGE SETTINGS key.
4.
A green box will appear around the first change
-
able setpoint. Use ▲▼ keys to place box around
the Motor Node ID setpoint.
5. Press
key. A dialog box will appear with the range
of settings. Use numeric keys to set this value to “1”.
6. Press ENTER (
) key.
Full Load Amps (VSD)
This is the Full Load Amps (FLA) of the chiller as
listed on the SALES ORDER Screen. The microboard
uses the programmed value to perform Current Lim-
it functions and display compressor motor current in
terms of %FLA.
1. Place Compressor Start/Stop Switch in the Stop-
Reset (O) position.
2. Select VSD DETAILS Screen from the MOTOR
Screen.
3. Inside the VSD, locate the small trim pot on the
VSD Logic Board; (R34) on Logic Board 031-
02506; (R28) on all other Logic Boards.
4. While monitoring the VSD Full Load Amps 000.0
A message on the VSD DETAILS Screen, adjust
this trim pot until the correct Full Load Amps val-
ue is displayed. Clockwise will increase the value.
Full Load Amps (MV VSD)
This is the Full Load Amps (FLA) of the chiller as
listed on the SALES ORDER Screen. The microboard
uses the programmed value to perform Current Lim-
it functions and display compressor motor current in
terms of %FLA.
1. Select MOTOR Screen.
2. Press FULL LOAD AMPS key.
3. Use NUMERIC Keypad keys to enter the correct
value.
4. Press ENTER (
) key.
Pre-rotation Vanes Position Potentiometer
See the
Pre-rotation Vanes Calibration on page 294
in this section for the procedure.
Adaptive Capacity Control
1. Select ACC DETAILS Screen.
2. The following keys are available:
a. Surge Map Clear – Clears all previously es-
tablished surge points that are stored in mem-
ory. When this key is pressed, a dialog box ap-
pears requesting the special ACC Map Clear
Password. Enter 0 3 6 8 and press the ENTER
(
) key. A message is displayed advising the
clearing is in progress. If ACC Board is pres-
ent, press switch SW1 (for at least 1 second)
on the ACC Board within 15 seconds of press-
ing the ENTER key. Another message is dis-
played when the clearing has completed. IM-
PORTANT! – This should not be performed
unless advised by YORK factory Service.