286
FORM 160.54-M1
ISSUE DATE: 10/25/2019
SECTION 33 - SYSTEM CALIBRATION, SERVICE SETPOINTS, AND RESET PROCEDURES
JCI COMPANY CONFIDENTIAL
JOHNSON CONTROLS
er values to compensate for local operating conditions.
There are two different setpoint sets used depending
upon the software vintage. Select the appropriate pro-
cedure per the installed software as follows:
1. At the keypad, login at SERVICE access level us-
ing password 1 3 8 0.
2. Select Hot gas bypass Screen from the COM-
PRESSOR Screen.
3. On the Hot gas bypass Screen, press the appropri-
ate key to select the setpoint to be programmed.
4. Using the numeric Keypad keys, enter the desired
value.
5. Press ENTER (
) key.
Manual Control
The Hot gas valve can be manually controlled as
follows:
1. At the keypad, log in at SERVICE access level
using password 1 3 8 0.
2. Select Hot gas bypass Screen from the COM-
PRESSOR Screen.
3. On the Hot gas bypass Screen, press the OPEN
or CLOSE keys as desired. Each time the key is
pressed, the valve position will be increased or
decreased 5%. Pressing the AUTO key invokes
automatic operation.
Pre-rotation Vanes Position Potentiometer
Calibration
See
Pre-rotation Vanes Calibration on page 294
in
this section for the procedure.
CHILLER STARTS AND OPERATING HOURS
RESET
The Number of Starts and the Operating Hours can be
reset to zero or preset to a desired number. However,
this should never be arbitrarily performed. Use the fol-
lowing procedure:
1. At the keypad, login at ADMIN access level. This
password changes daily. Contact your local John-
son Controls Service Office.
2. Select OPERATIONS screen.
3. Press NUMBER of STARTS or OPERATING
HOURS key as appropriate.
4. Using numeric keypad keys, enter desired number.
5. Press ENTER (
) key.
SERVICE PHONE NUMBERS
(Applies to Flash memory card version C.MLM.01.05.
xxx and later)
Two service phone numbers (Regional and Local),
with labels, can be displayed on the OPERATIONS
Screen. The Default value for the Regional number is
the “North American Toll Free Number” (1-800-861-
1001). However, the label and number can be changed
to any desired value. The Default value for the Local
label and number is blank. The Service technician en-
ters the Local phone number and label.
The entry format consists of 4 fields (rows), vertically
from the top. Up to 40 characters/numbers can be en-
tered for each field.
Field 1 –
Regional phone number label. Default value
is “Johnson Controls North American Parts
Center Toll Free Number”.
Field 2 –
Regional phone number. Default value is
1-800-861-1001.
Field 3 –
Local service phone number label. Default
value is blank.
Field 4 –
Local service phone number. Default value
is blank.
Use the following procedure to change any of the
fields:
1. At the keypad, login at SERVICE access level us-
ing access code 1 3 8 0.
2. Select OPERATIONS Screen.
3. Press EDIT PHONE NUMBERS key.
4. Use
▲
and
▼
keys to move green selection box
to the desired field to be changed.
5. Press the ENTER (
) key.
6. In the Dialog box that appears, a red box appears
over the first changeable value. Use the ◄ and
► keys to position the red box over the number
character to be changed or entered. Use the ▲
and ▼ keys to scroll sequentially through num
-
bers, alphabet characters and punctuation marks
to select the desired value. When the desired value
displayed, use the ◄ and ► keys to move the red
