ARTC-SVX001B-EN
55
4. Charge compressor with 150 psi dry nitrogen and
conduct a bubble and electronic leak check.
5. Evacuate new compressor using the suction and
discharge Schrader valves. Monitor and ensure that
at least a 500 micron or lower vacuum is achieved
(250 to 500 micron range would be ideal.)
6. Weigh in amount of refrigerant charge that was
removed.
7. Reconnect compressor electrical connections
exactly as they were removed, crankcase heater,
and high pressure switch.
8. Replace the electrical and control panel cover
securely.
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e!!
F
Fa
aiillu
urre
e tto
o d
diisscco
on
nn
ne
ecctt p
po
ow
we
err b
be
effo
orre
e sse
errv
viicciin
ng
g cco
ou
ulld
d
rre
essu
ulltt iin
n d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
D
Diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicc p
po
ow
we
err,, iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e
d
diisscco
on
nn
ne
eccttss b
be
effo
orre
e sse
errv
viicciin
ng
g.. F
Fo
ollllo
ow
w p
prro
op
pe
err
llo
occkko
ou
utt//tta
ag
go
ou
utt p
prro
occe
ed
du
urre
ess tto
o e
en
nssu
urre
e tth
he
e p
po
ow
we
err
cca
an
n n
no
ott b
be
e iin
na
ad
dv
ve
errtte
en
nttlly
y e
en
ne
errg
giizze
ed
d.. V
Ve
erriiffy
y tth
ha
att n
no
o
p
po
ow
we
err iiss p
prre
esse
en
ntt w
wiitth
h a
a v
vo
ollttm
me
ette
err..
9. Restore power to the module containing the
compressor by removing the lockout/tagout in the
power distribution panel.
10. Energize the new compressor allowing it to run as
long as possible.
11. Observe and document the operating pressures of
the newly installed compressor. It is advised that
the expansion valve superheat adjustment be
checked.
Pump Tasks
The following section applies to those chillers
equipped with a tank and pump module.
Remove Pump
Prior to servicing the pump or pump motor, verify that
the power to the chiller is disconnected.
1. The pump module breaker is found in the power
distribution panel. 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
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e!!
F
Fa
aiillu
urre
e tto
o d
diisscco
on
nn
ne
ecctt p
po
ow
we
err b
be
effo
orre
e sse
errv
viicciin
ng
g cco
ou
ulld
d
rre
essu
ulltt iin
n d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
D
Diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicc p
po
ow
we
err,, iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e
d
diisscco
on
nn
ne
eccttss b
be
effo
orre
e sse
errv
viicciin
ng
g.. F
Fo
ollllo
ow
w p
prro
op
pe
err
llo
occkko
ou
utt//tta
ag
go
ou
utt p
prro
occe
ed
du
urre
ess tto
o e
en
nssu
urre
e tth
he
e p
po
ow
we
err
cca
an
n n
no
ott b
be
e iin
na
ad
dv
ve
errtte
en
nttlly
y e
en
ne
errg
giizze
ed
d.. V
Ve
erriiffy
y tth
ha
att n
no
o
p
po
ow
we
err iiss p
prre
esse
en
ntt w
wiitth
h a
a v
vo
ollttm
me
ette
err..
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 new installation.
N
No
otte
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
No
otte
ess::
•
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.
7. Remove the pump.
8. Disconnect the piping stubs from the suction and
discharge connections on the old pump to be
reused on the new pump.
Install Pump
Verify that power is disconnected from the chiller.
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e!!
F
Fa
aiillu
urre
e tto
o d
diisscco
on
nn
ne
ecctt p
po
ow
we
err b
be
effo
orre
e sse
errv
viicciin
ng
g cco
ou
ulld
d
rre
essu
ulltt iin
n d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
D
Diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicc p
po
ow
we
err,, iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e
d
diisscco
on
nn
ne
eccttss b
be
effo
orre
e sse
errv
viicciin
ng
g.. F
Fo
ollllo
ow
w p
prro
op
pe
err
llo
occkko
ou
utt//tta
ag
go
ou
utt p
prro
occe
ed
du
urre
ess tto
o e
en
nssu
urre
e tth
he
e p
po
ow
we
err
cca
an
n n
no
ott b
be
e iin
na
ad
dv
ve
errtte
en
nttlly
y e
en
ne
errg
giizze
ed
d.. V
Ve
erriiffy
y tth
ha
att n
no
o
p
po
ow
we
err iiss p
prre
esse
en
ntt w
wiitth
h a
a v
vo
ollttm
me
ette
err..