Schreiber Chillers 2500modify - Manual (Page 13)

2500AC
REFRIGERATION SYSTEM
The refrigeration system is a medium temperature system with a range from 35
o F to 70 o
F. This is the most efficient range. If temperature below or above this range are required,
they should be discussed with our engineering department. The refrigeration system also
includes a hermetically sealed refrigeration system and all parts, except the evaporator
coil, are standard to the refrigeration industry. The evaporator coil is installed in a stainless
water reservoir and causes the water flow not to be restricted, resulting in better water
circulation. Any repairs to the refrigeration system should be done by a qualified
refrigeration company. Schreiber Engineering will always have a service engineer
available to answer any questions regarding chiller service.
This unit has a service valve on the suction and discharge line. The suction line has its
valve on the suction line. The high pressure or discharge service line is on the receiver.
This unit is charged with R-22. DO NOT OVERCHARGE because this will cause damage
to the compressor. The refrigeration sight glass is fuzzy until the unit reaches it's proper
temperature.
TIME DELAY RELAY
There is a time delay in the solid-state controller, up to 4.5 minutes. Call if you need help
with the time delay.
MAINTAINING THE CHILLER
Very little maintenance is required on this unit. It might be necessary to clean out the heat
exchanger located within the water reservoir, only depending on the condition of the water
used in the chilled water circuit. It will be necessary to blow out the condenser from time to
time, depending on the environment of the installed unit. Finally, the water-cooled
condenser needs to be flushed out once in a while. The frequency of this process depends
on the condition of the condenser's water supply.
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