Table of Contents
Advertisement
FORM 160.54-M1
ISSUE DATE: 10/25/2019
box to the next value to be changed. The numeric
keypad keys can also be used to enter numbers.
Continue this process until all desired values have
been entered.
7. After all desired values have been entered in pre-
vious step, press ENTER () key.
SURGE PROTECTION
(Applies to Flash memory card version C.MLM.01.05.
xxx and later)
A complete description of the Surge Protection feature
and setpoints that affect this control are provided in
SECTION 25 - SURGE PROTECTION of this manual.
Although most setpoints are entered with OPERATOR
access level, the Surge Sensitivity setpoint and Total
Surge Count clearing require SERVICE access level or
higher.
Surge Sensitivity
1. At the keypad, log in at SERVICE access level,
using 1 3 8 0.
2. Select SURGE PROTECTION Screen from
COMPRESSOR Screen.
3. Press SURGE SENSITIVITY key.
4. Using numeric and decimal point keypad keys,
enter desired value. Programmable over range of
0.3 to 1.3. Default value is 0.3. Use leading zeroes
where necessary and place decimal point between
first and second digit (ie; 0.3, 1.2, etc.)
5. Press ENTER () key.
Clear Surge Count
This should NOT be arbitrarily performed.
1. At the keypad, log in at ADMIN access level. Ob-
tain ADMIN password from local service office.
This password changes daily.
2. Select SURGE PROTECTION Screen from
COMPRESSOR Screen.
3. Press CLEAR SURGE COUNT key.
JOHNSON CONTROLS
SECTION 33 - SYSTEM CALIBRATION, SERVICE SETPOINTS, AND RESET PROCEDURES
SALES ORDER DATA
All of the Sales Order Data, except the "Chiller Com-
missioning Date" is entered at the YORK factory at
the time of chiller manufacture. The Service techni-
cian must enter the Chiller Commissioning Date and
modify the Job Name or Job Location if necessary at
the completion of commissioning. Normally, the re-
mainder of the Sales Order Data should never be modi-
fied. However, if there is a change to the chiller design,
in the field, this data can be modified. If the BRAM
battery-backed memory device fails and requires field
replacement, all of the data will be lost and will have to
be manually programmed.
When replacing a Microboard, it might be desirable to
transfer the BRAM from the defective board to the re-
placement board to save stored Sales Order data. Since
not all BRAM devices are compatible with all Mi-
croboards, first determine if the BRAM can be trans-
ferred before making the transfer. See the microboard
Service Replacement in SECTION 4 - MICROBOARD
031-02430-000 AND 031-02430-001 of this manual.
There are three different Passwords used, depending
on the circumstances, to change the Sales Order Data
as follows:
• Chiller Commissioning - Service technician
• Modifying Sales Order Data - Service techni-
• BRAM Replacement - If the BRAM is field re-
JCI COMPANY CONFIDENTIAL
must use password 1 3 8 0 to enter the Commis-
sioning Date and modify Job Name and Job Loca-
tion if necessary.
cian must use the ADMIN password. This pass-
word changes daily. Contact your local Johnson
Controls Service Office.
placed, the Service technician must use password
0 2 2 8 to enter all Sales Order Data into a new
blank BRAM. When logged in at this level, the
ACCESS LEVEL shown will be TEST OP. This
password only works with a blank BRAM and is
only applicable to chillers equipped with Flash
memory card Version C.MLM.01.01 and later.
33
287
Advertisement
Table of Contents
