50
Systems, Controls and Operations
Models C708/C709/C716/C717
COMP LABEL
DESCRIPTION
FUNCTION
BASIC OPERATING LOGIC
INPUT /
OUTPUT
EPR
Inlet Pressure Upstream
Regulator
Limits the minimum
refrigerant pressure in the
hopper (currently set to 60
psig).
Limiting the minimum
refrigerant pressure in the
hopper prevents freezing of
product mix on the hopper
wall.
OPR
Outlet Pressure Downstream
Regulator
Limits the maximum pressure
in the compressor inlet
(currently set to 40 psig).
Limiting the inlet pressure to
the compressor helps
prevent overloading of the
compressor.
LIV
Liquid Injection Valve
Controls the injection of liquid
refrigerant into the suction
line.
Liquid refrigerant is injected
into the suction line to lower
the discharge temperature of
the compressor during the
cooling phase of the Heat
mode.
DBV
Hot gas discharge bypass
valve. This is an AXV valve.
Allows refrigerant to short
circuit – essentially cutting
the capacity of the
compressor when the hopper
alone is being cooled.
Refrigerant is passed
through this valve when the
hopper alone is being cooled.
Filter/Dryer
This keeps moisture, dirt,
metal, and chips from
entering the refrigerant flow
control valves.
Heat
Exchanger
(sub cooler)
This allows the liquid
refrigerant to be cooled
before it reaches the AXV
and TXV.
When the liquid is subcooled
before it reaches the
refrigerant control, the
refrigeration effect per unit
mass of refrigerant is
increased.
Receiver
The liquid receiver is a
storage tank for liquid
refrigerant.
The use of a liquid reciever
makes the quantity of
refrigerant in a system less
critical.
Содержание C708
Страница 1: ...Models C708 C709 C716 C717 Heat Treatment Soft Serve Freezers Service Manual 059061 S 6 15 05 ...
Страница 2: ......
Страница 6: ...Table of Contents Models C708 C709 C716 C717 Notes ...
Страница 22: ...16 Introduction Models C708 C709 C716 C717 Notes ...
Страница 49: ...43 Models C708 C709 C716 C717 Systems Controls and Operations C708 C709 Control Overview ...
Страница 50: ...44 Systems Controls and Operations Models C708 C709 C716 C717 C716 C717 Control Overview ...
Страница 53: ...47 Models C708 C709 C716 C717 Systems Controls and Operations Refrigeration Schematic ...
Страница 70: ...64 Troubleshooting Models C708 C709 C716 C717 Notes ...
Страница 73: ...67 Models C708 C709 C716 C717 Parts Notes ...
Страница 74: ...68 Parts Models C708 C709 C716 C717 Model C708 Exploded View ...
Страница 78: ...72 Parts Models C708 C709 C716 C717 Model C709 Exploded View ...
Страница 82: ...76 Parts Models C708 C709 C716 C717 Model C716 Exploded View ...
Страница 86: ...80 Parts Models C708 C709 C716 C717 Model C717 Exploded View ...
Страница 133: ...C708 C709 057010 27 Rev 6 05 ...
Страница 134: ...C708 C709 057010 33 Rev 6 05 ...
Страница 135: ...C708 C709 057010 40 Rev 6 05 ...
Страница 136: ...C708 C709 057010 58 Rev 6 05 ...
Страница 137: ...Model C716 059900 27 Rev 2 06 ...
Страница 138: ...Model C716 059900 27 Inset 1 2 06 ...
Страница 139: ...Model C716 059900 27 Inset 2 2 06 ...
Страница 140: ...Model C716 059900 33 Rev 2 06 ...
Страница 141: ...Model C716 059900 40 Rev 2 06 ...
Страница 142: ...Model C716 059900 58 Rev 2 06 ...
Страница 143: ...Model C717 059901 27 6 05 ...
Страница 144: ...Model C717 059901 27 Inset 1 6 05 ...
Страница 145: ...Model C717 059901 27 Inset 2 6 05 ...
Страница 146: ...Model C717 059901 33 6 05 ...
Страница 147: ...Model C717 059901 40 6 05 ...
Страница 148: ...Model C717 059901 58 6 05 ...