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Unit
Rated
Size
6
Voltage
Amp.
CGAF25
460/60/3
CGAF40
460/60/3
CGAF60
460/60/3
42
Installation
RDE = (1.5 x LOAD 1) + LOAD 2 + LOAD 4
Select a fuse rating equal to the RDE value. If the RDE value does not equal
a standard fuse size as listed in NEC 240 - 6 select the next higher standard
fuse rating.
Note: If the selected RDE is greater than the selected MOP value, then
select the RDE value to equal the MOP value.
Calculation #2
Disconnect Switch Sizing (DSS)
DSS = 1.15 X (LOAD 1 + LOAD 2 + LOAD 4)
Table 4 — Unit Electrical Data
Compressor Motor (Each)
Min.
Max. Fuse
Qty
2 3 ,
Ckt.
Size
1
61
80
2
92
90
4
131
125
4
Notes:
1. Minimum Circuit Ampacity is 125% of the largest compressor RLA plus 100% of the other compressor RLA
plus the sum of the condenser fan FLA plus any other load rated at 1 Amp or more.
2. Maximum Fuse Size is 225% of the largest RLA plus 100% of the other compressor RLA plus the sum of
the condenser fan FLA plus any other load rated at 1 Amp or more.
3. Recommended Dual Element Fuse Size is 150% of the largest compressor RLA plus 100% of the other
compressor RLA plus the sum of the condenser fan FLA plus any other load rated at 1 Amp or more.
4. RLA is rated in accordance with UL Standard 465. Local codes may take precedence.
5. All units are across-the-line starting. Compressors will never start simultaneously.
6. (60 Hz units) One field provided 115/60/1, 15 amp power supply is required to operate the evaporator heat
tape.
(50 Hz unit) One field provided 240/50/1, 5 amp power supply is required to operate the evaporator heat tape.
Field Installed Control Wiring
Before installing any connecting wiring, refer to Figure 4 for the electrical
access locations provided on the unit. Install appropriately sized control
wiring for the 115 volt electrical components as required by the application.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before
servicing. Follow proper lockout/tagout procedures to ensure the power
can not be inadvertently energized. Failure to disconnect power before
servicing could result in death or serious injury.
5
Cond. Fan Motors
LRA
Qty
4
RLA
17.1/25.4
117/178
17.2
117
25.4
178
(Each)
FLA
Kw
Qty
3
1.8
0.9
1
4
1.8
0.9
1
6
1.8
0.9
1
Pump
FLA
HP
6.5
5
12.0
10
12.0
10
CSRA-SVX02A-EN
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