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M M a a i i n n t t e e n n a a n n c c e e P P r r o o c c e e d d u u r r e e s s
1. When installing the stubs from the old pump, apply
a minimal amount of thread sealant, such as
Rectorseal Tru-Blu with Teflon or equivalent, to the
threads of the suction and discharge pipe adapters
and install the adapters onto the new pump.
2. Position the pump over the mounting holes. Apply
anti-seize compound to the four mounting bolts,
washers, and nuts before installation. Tighten nuts
securely with 1/2 inch socket and wrench.
N N o o t t e e : : Do not over-tighten compressor mounting bolts
as the threaded inserts could strip out in the
frame.
3. Loosely install the four mounting bolts onto the
mounting nuts on the chiller frame.
4. Align the pump suction and discharge unions onto
the piping connections and hand tighten.
N N o o t t e e : : The pump suction pipe stub must be positioned
90 degrees to the right of the pump to mate up to
the union on the pump suction piping.
5. Fasten the mounting bolts to the frame using a 1/2
inch wrench or socket. Be sure to reuse the rubber
isolation pads from the old pump.
6. Tighten the suction and discharge unions using
large adjustable wrenches or pipe wrenches. To
minimize the torque on the piping, apply an equal
and opposite force to the pipe fitting with an
additional adjustable wrench or pipe wrench.
N N o o t t e e : : Always use a second, counter, wrench, when
performing plumbing tasks to firmly hold the
fittings or joint while loosening the tightening
the opposite side.
7. Position the conduit into the knockout of the
electrical box cover.
8. Fasten the conduit to the box with the ring nut.
9. Reconnect pump electrical connections exactly as
they were notated at removal.
10. Replace the cover onto the electrical box on the side
of the pump motor. Ensure gasket is in place prior
to replacing cover.
11. Reconnect the nut on the strain relief connector
from the motor housing using an adjustable
wrench.
12. Open the ball valves on the suction and discharge
sides of the pump.
13. Restore power to the module by removing the
lockout/tagout equipment and turning the pump
module breaker back to the ON position.
14. Observe the newly installed pump to verify that all
connections have been seated and tightened
correctly and not leaking.
15. Turn pump on and record amp draws for your
records.
56
Replace Pump Seal
Prior to servicing the pump, verify that the power to the
chiller is disconnected.
1. Confirm module power is OFF by testing with
known operational voltmeter. Once confirmed,
install lockout/tagout equipment to ensure power is
not turned on while service work is being
performed.
W W A A R R N N I I N N G G
H H a a z z a a r r d d o o u u s s V V o o l l t t a a g g e e ! !
F F a a i i l l u u r r e e t t o o d d i i s s c c o o n n n n e e c c t t p p o o w w e e r r b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g c c o o u u l l d d
r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r s s e e r r i i o o u u s s i i n n j j u u r r y y . .
D D i i s s c c o o n n n n e e c c t t a a l l l l e e l l e e c c t t r r i i c c p p o o w w e e r r , , i i n n c c l l u u d d i i n n g g r r e e m m o o t t e e
d d i i s s c c o o n n n n e e c c t t s s b b e e f f o o r r e e s s e e r r v v i i c c i i n n g g . . F F o o l l l l o o w w p p r r o o p p e e r r
l l o o c c k k o o u u t t / / t t a a g g o o u u t t p p r r o o c c e e d d u u r r e e s s t t o o e e n n s s u u r r e e t t h h e e p p o o w w e e r r
c c a a n n n n o o t t b b e e i i n n a a d d v v e e r r t t e e n n t t l l y y e e n n e e r r g g i i z z e e d d . . V V e e r r i i f f y y t t h h a a t t n n o o
p p o o w w e e r r i i s s p p r r e e s s e e n n t t w w i i t t h h a a v v o o l l t t m m e e t t e e r r . .
2. Remove electrical access cover on the pump motor.
3. Remove all electrical wiring and flex conduit from
the pump. Make sure to notate all connection points
for the re-installation.
N N o o t t e e : : Be sure to document conductor/wire numbers
4. Close valves. There are isolation valves on the
suction and discharge sides of the pump as well as
union connections.
5. Using appropriate wrenches, slowly break loose the
union fittings at the suction and discharge piping.
Capture any escaping fluids encountered during the
pump change out process.
N N o o t t e e s s : :
•
Always use a second, counter, wrench,
when performing plumbing tasks to firmly
hold the fittings or joint while loosening the
tightening the opposite side.
•
A small quantity of water/glycol mixture will
be lost during this operation. Although
propylene glycol does not pose an
environmental hazard, it is the installers
responsibility to adhere to local codes and
ordinances involving hazardous fluids.
6. Loosen the four bolts that attach the pump base to
the frame with the appropriate size wrench or
socket. Keep up with rubber isolation boots for
reuse on install.
7. Remove the pump from the chiller, and take to shop
bench.
8. Remove insulation from the wet end of the pump to
allow volute cover access and removal.
9. Remove pump volute cover.
10. Remove retaining nut on shaft which secures seal.
11. Remove seal.
ARTC-SVX001B-EN
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