ClimateMaster ACL2120CAZ, Installation Instructions Manual, Page: 32 / 52

32
Charging
5.0 SYSTEM START-UP & REFRIGERANT CHARGING
5.7 CHARGING CHARTS
Split System Air Conditioner 10 Tons
System Charge Chart - Refrigerant 410A
Basic System Charge With 0 Feet Of Tubing = 422 oz.
Add Additional Amount As Shown In Table Below
92-108042-03
Cooling Instructions
INSTRUCTIONS:
1. Connect Pressure Gauges To Vapor And Liquid Ports At Outdoor Unit.
2. Measure Air Temperature To The Unit (Outdoor Dry Bulb Ambient).
3. Place An “X” On The Chart Where The Vapor And Liquid Pressure Cross.
4. If “X” Is Below Outdoor Temperature Line, Add Charge And Repeat 3.
5. If “X” Is Above Indoor Temperature Line, Recover Charge And Repeat 3.
6. Pressures Are Ref. Only -Final Charge Verification To Be Based On “Design
Subcooling” Note At The Top Of The Cooling Chart.
Caution: Return Air Temperature Must Be Between 70° & 75° Before Final
Refrigerant Check.
1/2 [12.7] 1.06 [30.0] .04 [1.13]
5/8 [15.88] 1.65 [46.7] .07 [1.98]
3/4 [19.05] 2.46 [69.7] .10 [2.83]
7/8 [22.23] 3.28 [92.9] .13 [3.68]
1-1/8 [28.58] .22 [6.23]
1-3/8 [34.93] .34 [9.63]
1-5/8 [41.28] .48 [13.60]
2-1/8 [53.98] .84 [23.81]
Quantities based on 110°F liquid and 45°F vapor.
Required Ounces R-410A Charge Per Foot of Tubing
Tube Size O.D. in. [mm] Liquid Tube
oz [g]
Vapor Tube
oz [g]
150
200
250
300
350
400
450
500
550
100 120 140 160 180 200 220
Pr
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su
re
a
t l
iq
ui
d
se
rv
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-
PSI
G
Pressure at vapor service port - PSIG
COOLING
Design Subcooling @ 95°F Ambient = 15.5°F (At Service Valve)
55°
65°
75°
85°
95°
105°
115°
O
U
TD
O
O
R
A
M
BI
EN
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(F
°D
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