Annual Maintenance; Scheduling Other Maintenance; Operating Log; Maintenance Procedures - Trane RTHC Installation Operation & Maintenance

Annual Maintenance

Shut down the chiller once each year to check the
items listed below.
WARNING
Hazardous Voltage! Disconnect all
electrical power, including remote
disconnects before servicing. Fail-
ure to disconnect power before
servicing can cause severe per-
sonal injury or death.
q Perform all weekly and monthly maintenance
procedures.
q Check the refrigerant charge and oil level. Refer
to Section 9 "Maintenance Procedures". Routine
oil changing is not necessary on a hermetic
system.
q Have a qualified laboratory perform an oil analysis
to determine system moisture content and acid
.
level
IMPORTANT: Due to the hygroscopic properties of
the POE oil, all oil must be stored in metal
containers. The oil will absorb water if stored in a
plastic container
q Check the pressure drop across the oil filter. Refer
to Section 9 "Maintenance Procedures".
q Contact a qualified service organization to leak
check the chiller, to inspect safety controls, and
inspect electrical components for deficiencies.
q Inspect all piping components for leakage and
damage. Clean out any inline strainers.
q Clean and repaint any areas that show signs of
corrosion.
q Test vent piping of all relief valves for presence of
refrigerant to detect improperly sealed relief
valves. Replace any leaking relief valve.
q Inspect the condenser tubes for fouling; clean if
necessary. Refer to Section 9 "Maintenance
Procedures".
8 - 2

Scheduling Other Maintenance

q Use a nondestructive tube test to inspect the
condenser and evaporator tubes at 3-year
intervals.
NOTE: It may be desirable to perform tube tests on
these components at more frequent intervals,
depending upon chiller application. This is especially
true of critical process equipment.
q Depending on chiller duty, contact a qualified
service organization to determine when to
conduct a complete examination of the unit to
determine the condition of the compressor and
internal components.

Operating Log

A sample of several operating logs and checklists
have been included. Tablets are available from the
parts department. Refer to Form numbers:
1-27.133(698), 1-27.134(698), 1-27.135(698) and
1-27.136(698)
RTHC-IOM-1C