Table 6 - Condenser Temperature Range - York YK-EP B Operation & Maintenance Manual

FORM 160.87-OM1
ISSUE DATE: 8/24/2018
Oil Pump Package
Access Level Required: SERVICE
Allows Service Technician to enter the applied oil
pump drive type as either Variable Speed or Fixed
Speed.
YK-EP Control
Access Level Required: SERVICE
Allows selection of YK-EP program functions.
Motor Communications Protocol
VSD and MVVSD applications – Should be set to
Modbus. Style B Liquid Cooled Solid State Starter and
MVSSS applications – Should be set to Modbus.
Access Level Required: SERVICE
Only displayed when Motor Drive Type Setpoint above
is selected as "VSD-60 Hz", "VSD-50 Hz", "MVVSD",
"SSS-Mod B"or "MV SSS". Allows the Service Tech-
nician to enable the appropriate serial communications
port for communications with the Solid State Starter
(SSS) or Variable Speed Drive (VSD). The chiller must
be stopped with the Start-Run-Stop/Reset switch in the
Stop/Reset position to change this setpoint.
Line Frequency
Access Level Required: SERVICE
Sets the Line Frequency to either 60 Hz or 50 Hz as
appropriate.
Coastdown Time
Access Level Required: SERVICE
Only displayed when Standard is selected as the
Coastdown Setpoint. Allows Service Technician to se-
lect appropriate coastdown time for compressor mo-
tor applied. Larger motors require a longer coastdown
time to assure the motor rotation has stopped before the
oil pump is turned off at completion of post-lube. Pro-
grammable range is determined by the Chiller Style/

TABLE 6 - CONDENSER TEMPERATURE RANGE

Warning – High Pressure Limit – Maximum allowable value (PSIG)
Condenser – High Pressure – Trip/reset threshold (PSIG)
Condenser – High Pressure Stopped – Trip/reset threshold (PSIG)
JOHNSON CONTROLS
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
Compressor Setpoint (Style F/J7 and G/K6-K7, the
range is 240 (default) to 900 seconds. All others, the
range is 150 (default) to 900 seconds).
Motor Heater
Access Level Required: SERVICE
Set to Enabled if motor heaters installed else, set to
Disabled.
Condenser Temperature Range
Access Level Required: SERVICE
Special order R134a chillers are allowed to operate at
higher than standard condenser temperatures. The re-
sulting higher operating pressures require higher con-
denser warning and safety shutdown thresholds than
standard applications. These chillers are equipped with
a special High Pressure Cutout Switch (HPCO) that
can be set to trip at a higher pressure.
This setpoint allows for either standard or higher tem-
perature condenser temperature operation. It is set to
Extended for those chillers equipped for high condenser
temperature operation. Otherwise, it is set to Standard.
For R134a chillers, refer to Table 6 on Page 121.
Motor Auto Lube Type
Access Level Required: SERVICE
Set to None, QLS401, P203 or Sleeve as applicable.
None - User must manually lubricate the motor bear-
ings.
QLS401 - Injects grease at the interval factory set in
the QLS401 system.
P203 - The OptiView panel controls the lubrication
time interval and also monitors the grease level.
Sleeve - Motors with sleeve bearings use a lubricating
oil which extends the time interval for bearing lubrica-
tion.
STANDARD
162.5
180/120
160/160
2
EXTENDED
193
200/140
170/170
121