Controller Tasks - Trane Arctic Manhattan Gen II Installation, Operation And Maintenance Manual

Air-cooled modular chiller
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12. Remove back plate which will allow you to repair
/replace water slinger.
13. Install new water slinger rubber. Replace back
cover.
N N O O T T I I C C E E
P P u u m m p p S S e e a a l l D D a a m m a a g g e e ! !
D D o o n n o o t t t t o o u u c c h h s s e e a a l l w w i i t t h h b b a a r r e e s s k k i i n n , , o o r r a a l l l l o o w w a a n n y y
g g r r e e a a s s e e t t o o c c o o m m e e i i n n t t o o c c o o n n t t a a c c t t w w i i t t h h t t h h e e n n e e w w s s e e a a l l . .
E E v v e e n n a a s s m m a a l l l l p p i i e e c c e e o o f f g g r r i i t t o o f f d d i i r r t t c c a a n n d d a a m m a a g g e e t t h h e e
p p u u m m p p s s e e a a l l . . W W a a s s h h h h a a n n d d s s t t h h o o r r o o u u g g h h l l y y p p r r i i o o r r t t o o
i i n n s s t t a a l l l l i i n n g g t t h h e e n n e e w w s s e e a a l l . . L L a a t t e e x x g g l l o o v v e e s s a a r r e e s s u u g g g g e e s s t t e e d d
f f o o r r h h a a n n d d l l i i n n g g o o f f p p a a r r t t s s a a f f t t e e r r t t h h e e y y h h a a v v e e b b e e e e n n c c l l e e a a n n e e d d
a a n n d d p p r r e e p p p p e e d d . .
N N o o t t e e : : It is highly recommended that you gather seal
replacement procedural information for your
particular pump make and model.
14. Place the seal, sleeve, spring, and seal retainer onto
the shaft.
15. Position the pump impeller and secure into place
with the impeller retainer bolt.
16. Replace the volute cover with new o-ring and re-
insulate.
17. Re-install pump. Attach the mounting bolts to the
frame using a 1/2 inch wrench or socket.
18. Push the conduit and wires into the knockout on the
electrical box cover.
19. Attach the conduit to the box with the ring nut. Use
a standard screwdriver to secure the nut.
20. Secure the leads with crimp-type bell caps.
21. Reconnect pump electrical connections exactly as
they were notated at removal.
22. Replace the cover onto the electrical box on the side
of the pump motor. Ensure gasket is in place prior
to replacing cover.
23. Reconnect suction and discharge at unions with
appropriate size wrenches as with the removal
process.
24. Open the ball valves on the suction and discharge
sides of the pump.
ARTC-SVX001B-EN
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
25. Observe the newly installed pump to verify that all
connections have been seated and tightened
correctly and not leaking.
26. Restore power to the module by removing the
lockout/tagout equipment and turning the pump
module breaker back to the on position.
27. Turn pump on and record amp draws for your
records.

Controller Tasks

Replace PLC Logic Controller
Prior to servicing the controller, verify that the power to
the chiller is disconnected.
1. Remove all quick-connect black plugs and the one
orange plug (power supply 24 Vac).
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. The PLC logic controller is DIN rail-mounted. Once
plugs are removed, this will expose the gray secure
tabs on the bottom rear of the PLC.
3. Using a flathead screwdriver, insert screwdriver
into the slotted holes on the gray tabs and use
downward force to release PLC.
4. Remove the PLC by lifting the bottom out and then
up, off of the DIN rail.
5. Replace new controller in reverse fashion.
N N o o t t e e : : On a multiple modular system with multiple
PLC's, it is imperative that the new PLC has the
exact same programming as the remaining
PLC's or it will not be compatible and would
create havoc within the other PLCs.
6. Energize power to the module by turning power ON
at the breaker and/or disconnect.
57

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