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91424
Liquid Receiver
In the icemaker, a 10# liquid receiver is installed to accept the large refrigerant charge that is not needed when
the condenser is subjected to higher temperatures.
Pump Down System
To prevent refrigeration migration to the compressor during the off-cycle due to refrigerant to oil attraction or
temperature differential between condenser and compressor, a pump down system has been utilized in this re-
mote condenser system.
A solenoid valve has been installed in the liquid line to the TXV and is open during normal icemaking operation.
When the bin stat opens, the solenoid valve closes and stops the flow of refrigerant to the low side of the sys-
tem. The compressor is kept running by the pump down low pressure control, thereby pumping any remaining
refrigerant out of the low side into the high side liquid receiver. When the low die pressures reaches 5# the com-
pressor is turned off. The low side control is a recycling control and if refrigerant leaks into the low side and the
pressures reaches 55# the compressor is restarted, removing the unwanted refrigerant.
REMOTE CONDENSER
The remote condenser is an air-cooled fin-pack that can be mounted in the horizontal or vertical position. Care
should be taken in the installation site to reduce prevailing wind restraints and to keep the air entrance away
from other systems air discharge. This will keep the remote system operating at its’designed efficiencies.
This remote condenser system is designed to operate in temperatures of --20 degrees F through 120 degrees F.
These limits should be considered when installing equipment.
The remote condenser is supplied with a low ambient mixing valve that assures that the receiver will under all
temperatures have a liquid pressure of 225 PSIG. This is required for proper txv operation and to assure suffi-
cient pressure when hot gas by-pass is required. This valve eliminates the requirement of any fan cycling con-
trols.
The remote condenser is not required to cycle with the hot gas portion of the ice making cycle. The wiring of the
condenser can either be wired to a separate power source or, to allow the condenser to shut down with the ice-
maker, it may be wired per the electrical diagram enclosed.
NOTE: When servicing remote condenser make sure the power is disconnected.
Electrical voltage requirements are rated on the condenser for separate power sourcing.
PRE-CHARGED LINE SETS
The pre-charged line sets (25 ft. long or 40 ft. long) join together a totally sealed pre-charged system ready for
operation after installation. The line set is supplied with 3/8”quick couplings for the liquid line and 1/2”quick
couplings for the discharge line. As these couplings are “one time”couplings, if they are ever removed and re-
installed, the system refrigerant charge will be lost and an evacuation and recharge of the system will be neces-
sary.
LIQUID LINE
3/8-IN. DIA.
REMOTE
CONDENSER
DISCHARGE LINE
1/2-IN. DIA.
ICEMAKER
FIGURE 1. PRE-CHARGED LINE SETS