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Unit
Size
13 SEER
18
4.10 (1.86)
24
4.22 (1.91)
30
4.90 (2.22)
36
5.00 (2.27)
42
6.07 (2.75)
48
7.00 (3.18)
60
8.80 (3.99)
NOTE: For 15 ft (4.57 m) line set charge, refer to the table
above. some units may require additional charge depending
on size. Find model size in chart below, reference factory
charge on unit's rating plate and add additional charge if
there is a difference. Additional charge will be needed for
longer line sets (charge unit to nameplate subcooling).
For standard refrigerant line lengths (80 ft/24.38 m or less),
allow system to operate in cooling mode at least 15 minutes.
If conditions are favorable, check system charge by
subcooling method. If any adjustment is necessary, adjust
charge slowly and allow system to operate for 15 minutes to
stabilize before declaring a properly charged system.
If the indoor temperature is above 80_F (26.67_C), and the
outdoor temperature is in the favorable range, adjust system
charge by weight based on line length and allow the indoor
temperature to drop to 80_F (26.67_C) before attempting to
check system charge by subcooling method as described
above.
If the indoor temperature is below 70_F (21.11_C), or the
outdoor temperature is not in the favorable range, adjust
charge for line set length above or below 15ft (4.57 m) only.
Charge level should then be appropriate for the system to
achieve rated capacity. The charge level could then be
checked at another time when the both indoor and outdoor
temperatures are in a more favorable range.
ACCESSORY
Compressor Start Assist Capacitor and Relay
Crankcase Heater
Evaporator Freeze Thermostat
Hard Shut-Off TXV
Liquid Line Solenoid Valve
Low-ambient Pressure Switch
Support Feet
Winter Start Control
* For tubing line sets between 50 and 200 ft. (15.24 and 60.96 m) and/or 20 ft. (6.10 m) vertical differential, refer to Long Line Application Guideline.
‡ TXV required beyond 20 ft. (6.1 m) vertical separation or 50 ft. (15.2 m) total length.
9
15 ft. (4.57 m) Line Set Charge lb (kg)
14 SEER
COASTAL
14 SEER
4.77 (2.16)
4.5 (2.04)
4.20 (1.91)
4.20 (1.91)
5.67 (2.57)
5.67 (2.57)
5.42 (2.46)
5.42 (2.46)
7.90 (3.58)
7.90 (3.58)
8.31 (3.77)
8.31 (3.77)
9.39 (4.26)
9.39 (4.26)
Table 6 – Accessory Usage
REQUIRED FOR LOW-AMBIENT
COOLING APPLICATIONS
(Below 55°F/12.8_C)
Recommended
Specifications subject to change without notice.
SOUTHWEST/NORTH
SOUTHWEST
14/15 SEER
4.87 (2.21)
4.60 (2.09)
5.67 (2.57)
6.40 (2.90)
7.46 (3.38)
8.31 (3.77)
9.39 (4.26)
NOTE: If line length is beyond 80 ft (24.38 m) or greater
than 20 ft (6.10 m) vertical separation, see Long Line
Application Guideline for special charging requirements.
Final Checks
IMPORTANT: Before leaving job, be sure to do the following:
1. Ensure that all wiring is routed away from tubing and
sheet metal edges to prevent rub−through or wire
pinching.
2. Ensure that all wiring and tubing is secure in unit
before adding panels and covers. Securely fasten all
panels and covers.
3. Tighten service valve stem caps to 1/12−turn past
finger tight.
4. Leave Owner's Manual with owner. Explain system
operation and periodic maintenance requirements
outlined in manual.
CARE AND MAINTENANCE
For continuing high performance and to minimize possible
equipment failure, periodic maintenance must be performed
on this equipment.
Frequency of maintenance may vary depending upon
geographic areas, such as coastal applications. See
Owner's Manual for information.
REQUIRED FOR LONG LINE
APPLICATIONS*
Yes
Yes
Yes
Yes
No
Yes
Yes
SOUTHWEST
16 SEER
16 SEER
4.61 (2.09)
3.83 (1.74)
6.00 (2.72)
4.95 (2.25)
6.81 (3.09)
6.82 (3.09)
7.00 (3.18)
6.75 (3.06)
8.62 (3.91)
8.60 (3.90)
13.00 (5.90)
13.00 (5.90)
14.50 (6.58)
14.50 (6.58)
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within 2 miles/3.22 km)
Yes
No
Yes
No
No
No
Yes‡
No
No
No
No
No
No
Recommended
No
No
421 01 5501 02
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