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5- Each refrigerant circuit is separately charged with
R-410A refrigerant. See unit rating plate for correct
amount of charge.
6- Refer to Cooling Operation and Adjustment section for
proper method to check refrigerant charge.
IMPORTANT
Mineral oils are not compatible with R410A. If oil must
be added, it must be a polyol ester oil.
CIRCUIT 1
CONDENSER
COIL
FIGURE 27
SG/SC 120 MSAVt UNIT REFRIGERANT CIRCUITS
2
CIRCUIT 2
CONDENSER
COIL
EVAPORATOR
CIRCUIT 1
EVAPORATOR
CIRCUIT 2
EVAPORATOR
SIDE VIEW
AIR
FIGURE 28
SG/SC 240 MSAVt UNIT REFRIGERANT CIRCUITS
(IN THERMOSTAT MODE)
STAGE 1
CONDENSER COIL
STAGE 2
CONDENSER COIL
STAGE 1
EVAPORATOR
COIL
STAGE 2
EVAPORATOR
COIL
CIRCUIT 3
CIRCUIT 4
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