mrcool 13seer r410 cond install manual 4web

Unitary Ducted Split AC & HP
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8.3 Weigh In
Calculating system charge for outdoor unit void of charge
If the system is void of refrigerant, first, locate and repair any leaks and then weigh in the
refrigerant charge into the unit. To calculate the total refrigerant charge:
Amount specified
on nameplate
+
Adjust amount for variation
in line set length listed on
line set length table below
=
Total charge
Refrigerant Charge per Line Set Length:
Table 7
Outdoor Unit
Liquid Line
Set Diameter
Ounces per 5 feet (g per 1.5 m)
adjust from 25 feet (7.6 m) line set*
COOLING ONLY
3/8" (9.5 mm) 1.6 ounce per 5 feet (45g per 1.5 m)
1/2"(12.7 mm) 3.2 ounce per 5 feet (90g per 1.5 m)
HEAT PUMP
3/8" (9.5 mm) 2.9 ounce per 5 feet (81g per 1.5 m)
1/2"(12.7 mm) 5.9 ounce per 5 feet (165g per 1.5 m)
*If line length is greater than 25 ft. (7.6 m), add this amount. If line length is less than 25 ft. (7.6
m), subtract this amount.
NOTE: Insulate liquid line when it is routed through areas where the surrounding ambient
temperature could become higher than the temperature of the liquid line or when pressure drop is
equal to or greater than 20 psig.
NOTE: The above nameplate is for illustration purposes only. Go to actual nameplate on
outdoor unit for charge information.
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