Electrical Connections - Amana AVZC18 Installation & Service Reference

S - P D
TART UP ROCEDURE ETAIL
Liquid and gas valves on heat pump 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.
P
ROLONGED OPERATION AT SUCTION PRESSURES LESS THAN
5
FOR MORE THAN SECONDS WILL RESULT IN OVERHEATING OF THE
COMPRESSOR AND MAY CAUSE PERMANENT DAMAGE TO IT
1. Connect the vacuum pump with 250 micron capability to
the service valves.
2. Evacuate the system to 250 microns or less using gas and
liquid service valves. Using both valves is necessary as
some compressors create a mechanical seal separating
the sides of the system.
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
CAUTION
20
.
LEAK(S)
PRESENT
CONDENSIBLES OR SMALL
LEAK PRESENT
NO LEAKS
NO CONDENSIBLES
3 4 5 6 7 8 9
MINUTES
E C
LECTRICAL
HIGH VOLTAGE!
D ALL
ISCONNECT
M
ULTIPLE POWER SOURCES MAY BE PRESENT
TO DO SO MAY CAUSE PROPERTY DAMAGE
INJURY OR DEATH DUE TO ELECTRIC SHOCK
PSIG
MUST CONFORM WITH
. U
CODES NDERSIZED WIRES COULD CAUSE POOR
EQUIPMENT PERFORMANCE
.
FIRE
T
O AVOID THE RISK OF FIRE OR EQUIPMENT DAMAGE
.
CONDUCTORS
GROUNDING REQUIRED!
A
LWAYS INSPECT AND USE PROPER SERVICE TOOLS
INSPECTION OR IMPROPER TOOLS MAY CAUSE EQUIPMENT DAMAGE OR
PERSONAL INJURY
RECONNECTED BEFORE INSTALLING OR SERVICING
COMPONENTS OF THIS UNIT MAY CONDUCT ELECTRICAL CURRENT
THESE ARE GROUNDED
OF GROUNDING WIRES
USED TO COMPLETE THE GROUND
ORIGINAL POSITION AND PROPERLY FASTENED
The heat pump unit rating plate lists pertinent electrical data
necessary for proper electrical service and overcurrent protec-
tion. Wires should be sized to limit voltage drop to 2% (max.)
from the main breaker or fuse panel to the condensing unit. Con-
sult the NEC, CEC, and all local codes to determine the correct wire
gauge and length.
Local codes often require a disconnect switch located near the
unit; do not install the switch on the unit. Refer to the installation
instructions supplied with the indoor air handler for specific wir-
ing connections and indoor unit configuration.
O P
VERCURRENT
The inverter control system software provides sufficient time de-
lay to protect from overcurrent conditions and permit the com-
pressor to adjust their rotational speed.
10
6
ONNECTIONS
WARNING
.
POWER BEFORE SERVICING
. F
,
PERSONAL
. W
NEC CEC
OR AND ALL LOCAL
,
EQUIPMENT DAMAGE OR
WARNING
CAUTION
. A
LL DISCONNECTED GROUNDING DEVICES
. I
F SERVICING THE UNIT
, , ,
SCREWS STRAPS CLIPS
MUST
BE RETURNED TO THEIR
.
ROTECTION
AILURE
IRING
,
USE COPPER
. L
ACK OF
MUST
BE
. M
ULTIPLE
;
,
ANY DISCONNECTION
,
NUTS OR WASHERS