Amana VXC20 Series, Installation & Service Reference

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8
U
SE REFRIGERANT CERTIFIED TO
AHRI
STANDARDS
. U
SED REFRIGERANT
MAY CAUSE COMPRESSOR DAMAGE
,
AND THE
WARRANTY
. M
OST PORTABLE MACHINES CANNOT CLEAN USED
REFRIGERANT TO MEET
AHRI
STANDARDS
.
IS NOT COVERED UNDER
CAUTION
Start-up Procedure Detail
Liquid and suction valves on condensing unit are closed to
contain the charge within the unit. The unit is shipped with
the valve stems closed and caps installed. Do not open
valves until the indoor coil and line set is evacuated.
CAUTION
Prolonged operation at suction pressures less than 20 PSIG
for more than 5 seconds will result in overheating of the
compressor and permanent damage to it.
1. Connect the vacuum pump with 500 micron capability
to the service valves.
2. Evacuate the system to 500 microns or less using
gas and liquid service valves. Using both valves is
necessary.
3. Close pump valve and hold vacuum for 10 minutes.
Typically pressure will rise during this period.
• If the pressure rises to 1000 microns or less and
remains steady the system is considered leak-
free; proceed to start-up.
• If pressure rises above 1000 microns but holds
steady below 2000 microns, moisture and/or
noncondensibles may be present or the system
may have a small leak. Return to step 2: If the
same result is encountered check for leaks as
previously indicated and repair as necessary then
repeat evacuation.
• If pressure rises above 2000 microns, a leak is
present. Check for leaks as previously indicated
and repair as necessary then repeat evacuation.
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0 1 2 3 4 5 6 7 8 9 10
LEAK(S)
PRESENT
MINUTES
V
ACU
UM
IN
MI
CR
O
NS
CONDENSIBLES OR SMALL
LEAK PRESENT
NO LEAKS
NO CONDENSIBLES
ELECTRICAL CONNECTIONS
HIGH VOLTAGE!
D
ISCONNECT
ALL
POWER BEFORE SERVICING
.
M
ULTIPLE POWER SOURCES MAY BE PRESENT
. F
AILURE
TO DO SO MAY CAUSE PROPERTY DAMAGE
,
PERSONAL
INJURY OR DEATH DUE TO ELECTRIC SHOCK
. W
IRING
MUST CONFORM WITH
NEC
OR
CEC
AND ALL LOCAL
CODES
. U
NDERSIZED WIRES COULD CAUSE POOR
EQUIPMENT PERFORMANCE
,
EQUIPMENT DAMAGE OR
FIRE
.
WARNING
T
O AVOID THE RISK OF FIRE OR EQUIPMENT DAMAGE
,
USE COPPER
CONDUCTORS
.
WARNING
GROUNDING REQUIRED!
A
LWAYS INSPECT AND USE PROPER SERVICE TOOLS
. L
ACK OF
INSPECTION OR IMPROPER TOOLS MAY CAUSE EQUIPMENT DAMAGE OR
PERSONAL INJURY
. A
LL DISCONNECTED GROUNDING DEVICES
MUST
BE
RECONNECTED BEFORE INSTALLING OR SERVICING
. M
ULTIPLE
COMPONENTS OF THIS UNIT MAY CONDUCT ELECTRICAL CURRENT
;
THESE ARE GROUNDED
. I
F SERVICING THE UNIT
,
ANY DISCONNECTION
OF GROUNDING WIRES
,
SCREWS
,
STRAPS
,
CLIPS
,
NUTS OR WASHERS
USED TO COMPLETE THE GROUND
MUST
BE RETURNED TO THEIR
ORIGINAL POSITION AND PROPERLY FASTENED
.
CAUTION
NOTICE
• Never install a phase-advancing capacitor. As this
unit is equipped with an inverter, installing a phase-
advancing capacitor will not only deteriorate power
factor improvement effect, but also may cause capacitor
abnormal heating accident due to high-frequency waves.
• Do not change the setting of the protection devices. If
the pressure switch, thermal switch, or other protection
device is shorted and operated forcibly, or parts other
than those specified by Goodman are used, fire or
explosion could result.
• Do not connect the ground wire to gas pipes, sewage
pipes, lightning rods, or telephone ground wires.
The condensing unit rating plate lists pertinent electrical
data necessary for proper electrical service and
overcurrent protection. Wires should be sized to limit
voltage drop to 2% (max.) from the main breaker or fuse
panel to the condensing unit. Consult the NEC, CEC, and
all local codes to determine the correct wire gauge and
length.