Unit installation

4
■ All field wiring must be done in accordance with National
Electrical Code requirements, applicable requirements of UL,
or local codes, where applicable.
■ Electrical wiring, disconnect means and over-current
protection are to be supplied by the installer. Refer to the
rating plate for the maximum over-current protection,
minimum circuit ampacity, and operating voltage. See the
wiring diagrams in “Make Electrical Connections.”
INSTALLATION INSTRUCTIONS
Inspect Shipment
This condensing unit is shipped in one package, completely
assembled and wired. The thermostat is shipped in a separate
carton when ordered.
1. Check the condensing unit rating plate to confirm
specifications are as ordered.
2. Upon receipt of equipment, inspect it for possible shipping
damage. Examine the condensing unit inside the carton if the
carton is damaged.
If damage is found, it should be noted on the carrier’s freight bill.
Damage claims should be filed with the carrier immediately.
Claims of shortages should be filed with the seller within 5 days.
NOTE: If any damages are discovered and reported to the carrier,
do not install the condensing unit, because your claim may be
denied.
Flush Refrigerant Lines
Refrigerant lines must be flushed by a licensed, EPA certified
refrigerant technician in accordance with established procedures.
NOTES:
■ R-410A outdoor systems are not recommended for use with
indoor systems that have used R-22 as the refrigerant.
However, if this unit is being matched with an approved line
set or indoor coil which was previously charged with R-22
refrigerant, or if it is being matched with a coil which was
manufactured before January 1999, the R-22 coil and line set
must be flushed prior to installation.
■ Check the refrigerant lines for size and length. See “Connect
Refrigerant Lines.”
■ Polyol ester (POE) oils are used in Whirlpool units charged
with R-410A refrigerant. Residual mineral oil from the R-22
system can act as an insulator, inhibiting proper heat transfer.
It can also clog the thermal expansion valve, reducing system
performance and capacity.
■ Failure to properly flush the system according to the following
instructions will void the warranty.
Tools and Parts
Flushing Connections
NOTE: The inverted R-22 cylinder must contain at least the same amount of refrigerant as was recovered from the existing system.
Excessive Weight Hazard
Use two or more people to move and install
condensing unit or heat pump.
WARNING
Failure to do so can result in back or other injury.
■ 2 clean R-22 recovery
cylinders
■ Oilless recovery machine
with a “pump down” feature
■ Gauge set for R-22
refrigerant
■ Gauge set for R-410A
refrigerant
A. Existing indoor coil
B. Existing vapor line
C. Inverted R-22 cylinder (contains clean R-22 to be used for flushing)
D. Vapor line service valve
E. Outdoor system
F. Low pressure
G. High pressure
H. Gauge manifold
I. Closed
J. Opened
K. Liquid line service valve
L. Existing liquid line
M. Tank return
N. Inlet
O. Discharge
P. Recovery machine
Q. Recovery cylinder
R. Vapor
S. Liquid
FG
D
A
E
P
K
N
O
M
IJ
L
Q
B
C
S
R
H