JOHNSON CONTROLS
17
FORM 160.77-O1
ISSUE DATE: 10/22/2020
SECTION 2 - SYSTEM OPERATING PROCEDURES
Quarterly
1. Perform chemical analysis of oil.
Semi-Annually (Or More Often As Required)
1.
Change and inspect each compressor's oil filter
element.
2. Inspect the Oil return system
a. Change dehydrator
b. Check nozzle of eductor for foreign particles.
3. Check controls and safety cutouts.
Annually (More Often If Necessary)
1. Drain and replace the oil in the compressor oil
sump - refer to Oil Changing Procedure on page
20.
FIGURE 7 -
LIQUID CHILLER LOG SHEETS
* NOTE:
These items can be printed by an electronic printer connected to the Microboard and
pressing the PRINT key on the Keypad, or automatically using the Data Logger feature.
2. Check the Evaporator and Condenser.
a. Inspect and clean water strainers.
b. Inspect and clean tubes as required.
c. Inspect end sheets.
3. Inspect the Compressor Drive Motors (see motor
manufacturers maintenance and service instruc-
tion supplied with the unit).
a. Meg motor windings – Refer to
for details.
4. Inspect and service electrical components as nec-
essary.
5. Perform refrigerant analysis.
LIQUID CHILLER LOG SHEET
Chiller Location
System No.
Date
Time
Hour Meter Reading
O.A. Temperature Dry Bulb / Wet Bulb
/
/
/
/
/
/
/
/
/
/
Compresso
r
Oil Level
Oil Pressure
Oil Temperature
Suction Temperature
Discharge Temperature
PRV % Open
Motor
Volts
Amps
Cooler
Refrigerant
Suction Pressure
Liquid
Inlet Temperature
Inlet Pressure
Outlet Temperature
Outlet Pressure
Flowrate - GPM
Condenser
Refrigerant
Discharge Pressure
Corresponding Temperature
High Pressure Liquid Temperature
System Air - Degrees
W
ater
Inlet Temperature
Inlet Pressure
Outlet Temperature
Outlet Pressure
Flow Rate - GPM
Remarks:
Form 160.44-F6 (311)
Supersdes 160.44-F6 (579)
Issue Date: Marh 18, 2011
Price $4.50
Issue Date:
March 18, 2011
...an Energy-Saving
approach to your
Service needs...
Form 160.44-F6 (311)
Supersedes 160
.44-F6 (579)
2
