036-33072-001 Rev. A (0601)
Unitary Products Group
17
There is no negative impact on durability caused by operating
three pase Scroll compressors in the reversed direction for a
short period of time (under one hour). However, after several
minutes of operation, the compressors internal protector will
trip.
If opposite rotation is needed, disconnect and reverse any
two leads of the three phase supply. Reconnect power and
observe for correct rotation.
Observe unit operation and check for unusual noise or vibra-
tion.
TABLE 6: REFRIGERANT CHARGES
TABLE 7: PRESSURE SWITCH SETTINGS (ALL)
Ref. Charge
5
TON
8
TON
10
TON
15
TON
20
TON
25
TON
No. of Cir-
cuits
1
2
2
2
2
3
Per Circuit
(LB)
4.625
4.188
5.125
7.000
8.750
7.500
High
Low
Cut Out (PSIG)
400
25
Cut In (PSIG)
275
60
