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Titan Central Chillers
5.5
PUMP SEAL SERVICE
A.
The coolant pump seal is a carbon/niresist
shaft seal assembly including a stationary
member, rotating member and tension
spring (figure 5.5A).
B.
The operator can determine the pump seal
is leaking when fluid is identified leaking
from the pump case adapter. Generally, a
pump seal will leak due to inadequate unit
pressure, excessive flow and poor fluid
quality.
C.
The operator should follow this procedure to replace the pump seal:
1.
Disengage process operations according to the procedure outlined in section
3.4. The operator must be certain process fluid
temperature is under 100°F and pressure is
relieved (COOLANT pressure gauge reads
"0") and water make-up flow is shut off and all
pressure relieved.
2.
Disengage main power supply. The operator must
verify the proper lockout procedures are followed.
3.
Access the pump motor by opening or removing
any cover panels as necessary (figure 5.5B).
4.
Drain machine. The machine can be drained by
using the drain valve located on the pump case.
Drain fluid into a suitable container for reuse or
disposal according to manufacturer's instructions
(if a glycol solution is used).
5.
Locate and remove the three motor wire leads
from the motor wiring terminals. The operator
should "map" the wire terminal locations to ensure
correct rewiring. The power cord should be
removed from the motor housing (figure 5.5C).
6.
Locate and remove the pump casing bolts. These
bolts secure the motor and motor adapter to the
pump casing (figure 5.5D).
Stationary member
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729
Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
Rotating Member
Tension Spring
Figure 5.5A
Pump motor
Figure 5.5B
Pump motor
Figure 5.5C
Typical pump casing
Figure 5.5D
bolt
Page: 64
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