8.9 Service Mode: Unit Setup; Table 5 - Service Mode Programmable Values - York YCAS0130 Installation, Operation & Maintenance Manual

8.9 SERVICE MODE: UNIT SETUP

The Service Mode allows programming unit set-up
values. These values are programmed before the
chiller leaves the factory and typically should never
be changed.
Catastrophic failure of chiller compo-
nents can occur if the set-up values are
improperly programmed. If for some
reason these values need to be checked
or changed, care should be exercised.
Whenever an EPROM is changed, the
programmed values should be record-
ed prior to removing the old EPROM.
These values should then be checked
and programmed into the micro when
the new EPROM is installed.
Setup values may be checked in the Service Mode by
pressing the PROGRAM, 5144, and ENTER keys.
Table 5 lists the value and the program range that will
be accepted.
YORK INTERNATIONAL
TABLE 5 – SERVICE MODE
PROGRAMMABLE VALUES
SETUP MODE VALUE
Refrigerant Type
R-407C Chiller Type
Unit Type
Heat Recovery Unit
Sys 1 100% Full Load Amps
Sys 2 100% Full Load Amps
Sys 1 Motor Protector Input
Sys 2 Motor Protector Input
Oil Cooling On
Oil Cooling Diff
Discharge Cooling On
Discharge Cooling Diff
Data Logging Mode
Data Logging Timer
Sys 1 Operating Hours
Sys 2 Operating Hours
Sys 1 Starts
Sys 2 Starts
Clear History Buffer
NOTE:
* See Table 6 or 7 for programming system 100% Full
Load Amps and System Motor Protector input volt-
age. Also assure that the correct number of wires
per phase pass through each C.T. The C.T. is built
internally into the 2ACE motor protector.
** The chiller must always be programmed for YCAS
*** Heat recovery must always be disabled.
**** Oil and discharge cooling is only utilized on spe-
cial low temp chiller.
FORM 201.19-NM1 (204)
PROGRAMMABLE RANGE
R-22 or R-407C
Optimized or Drop-in
**
YCAS or YCWS
***
Enabled or Disabled
*
75 to 500 Amps
*
75 to 500 Amps
*
1.0 to 5.0 volts
*
1.0 to 5.0 volts
167 to 203 ºF
****
180 ºF default
9 to 18 ºF
****
9 ºF default
176.0 to 239.0 ºF
212.0 ºF default
7.2 to 27.0 ºF
18 ºF default
OFF or ON
6 to 60 seconds
0 to 99,999
0 to 99,999
0 to 99,999
0 to 99,999
YES or NO
179