Test Operation
SiUS30-1301
84
Field Setting
1. Test Operation
1.1
Procedure and Outline
Follow the following procedure to conduct the initial test operation after installation.
1.1.1 Check Work Prior to Turn Power Supply ON
Check on stop
v
al
v
es opening
Discharge gas side
Open
Open
Open
Open
Close
Open
S
u
ction side Discharge li
qu
id side
Check on refrigerant piping,
w
ater
piping and piping ins
u
lation
Check on air tight test and
v
ac
uu
m drying
Check on amo
u
nt of additional
refrigerant charge
Cooling and heating
s
w
itching operation
Cooling and heating
sim
u
ltaneo
u
s operation
Check the
b
elo
w
items.
• Po
w
er
w
iring
• Control transmission
w
iring
b
et
w
een
u
nits
• Operation signal to heat
so
u
rce p
u
mp and interlock
w
iring from p
u
mp
• Interlock circ
u
it
• Gro
u
nd
w
ire
Is the
w
iring performed as specified?
Are the designated
w
ires
u
sed?
Are the setscre
w
s of
w
iring not loose?
Is the gro
u
nding
w
ork completed?
Is the ins
u
lation of main po
w
er s
u
pply circ
u
it deteriorated?
Use a 500
V
megger tester to meas
u
re the ins
u
lation. (
*
1)
• Do not
u
se a megger tester for other circ
u
its than 200
V
(or
240
V
) circ
u
it.
*
1: Meas
u
re to
b
e taken against decreased ins
u
lation resistance in
the compressor
If the compressor is left to stand for
an extended period of time after the
refrigerant charge
w
ith the stop
v
al
v
e open and the po
w
er s
u
pply
OFF, the refrigerant may
b
e melted
in the compressor, th
u
s decreasing
the ins
u
lation resistance.
Heat the compressor as sho
w
n on
the right and then recheck the
ins
u
lation.
Is pipe size proper? (The design press
u
re of this prod
u
ct is
5
8
0 psi.)
Are pipe ins
u
lation materials installed sec
u
rely?
Li
qu
id and gas pipes need to
b
e ins
u
lated. (Other
w
ise ca
u
ses
w
ater leak.)
Is refrigerant piping carried o
u
t correctly as per installation
man
u
al?
(Special care is re
qu
ired for m
u
lti condensing
u
nit installation.)
Is the air tight test and
v
ac
uu
m drying carried o
u
t as per
installation man
u
al?
Is refrigerant charged
u
p to the specified amo
u
nt?
If ins
u
fficient, charge the refrigerant from the ser
v
ice port of stop
v
al
v
e on the li
qu
id side
w
ith condensing
u
nit in stop mode after
t
u
rning po
w
er O
N
.
If the specified amo
u
nt of refrigerant can not
b
e charged in stop
mode, charge the re
qu
ired refrigerant as per “Additional
refrigerant charge total flo
w
” in operation. (Refer to P.123)
Has the amo
u
nt of refrigerant charge
b
een recorded on “Record
Chart of Additional Refrigerant Charge Amo
u
nt”?
Check to
b
e s
u
re the stop
v
al
v
es are
u
nder the follo
w
ing conditions.
Terminal
13/64in.
Heat the left side of the
terminal for a period of
approximately 15 min
u
tes.
Dryer
(1000
W
)