Oil Pump 1 Screen; Figure 25 - Oil Pump 1 Screen - York YD Series Operation Manual

FORM 160.69-O1
ISSUE DATE: 9/30/2012
Overview
This screen displays the chiller oil sump along with
compressor #1 oil cooler. All of the setpoints for com-
pressor #1 Variable Speed Drive Oil Pump are main-
tained here. Also, it can be manually controlled from
here.
Display Only
Oil Pump Run Output (LED)
Illuminated when compressor #1 Variable Speed Drive
Oil Pump is being commanded to run. Otherwise, it is
extinguished.
Oil Pressure
Displays the pressure differential between the Pump
oil pressure (HOP) transducer for compressor #1 and
the common Sump oil pressure (LOP) transducer. If
this compressor is the lead compressor, includes offset
pressure derived from auto-zeroing during the com-
pressor #1 pre-lube. However, if compressor #2 is the
lead compressor, this value includes offset pressure
derived from auto-zeroing during compressor #2 Pre-
lube (refer to auto-zeroing explanation under the Com-
pressor Screen). If either transducer used to calculate
this differential is out of range, the display field will
show XX.X.

FIGURE 25 - OIL PUMP 1 SCREEN

JOHNSON CONTROLS

OIL PUMP 1 SCREEN

Pump Oil Pressure (HOP)
Displays the high side oil pressure measured at the
compressor #1 bearing input.
Oil Pump Drive Command Frequency
Displays the speed command that is being applied to
compressor #1 Variable Speed Drive Oil Pump.
Setpoint or Target Oil Pressure
Displays the oil pressure setpoint that compressor #1
Variable Speed Oil Pump is controlling to. During the
pre-lube and for the first 15 seconds of System Run,
this is the target Setpoint, and is fixed at 45.0 PSID.
For the remainder of compressor #1 run, it is the pro-
grammed Setpoint Oil Pressure.
Oil Seal Lubrication Time Remaining
If a Standby Lubrication is in progress on compressor
#1, displays the time remaining in the 2-minute op-
eration. Service Technicians refer to Service Manual
160.69-M1. Only displayed in Service Access Level.
Next Oil Seal Lubrication
If compressor #1 is not running, displays the time re-
maining until the next Standby Lubrication. Service
Technicians refer to Service Manual 160.69-M1. Only
displayed in Service Access Level.
SECTION 2 – OPTIVIEW CONTROL CENTER
2
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