Hoshizaki F-1001MAJ, Инструкция по эксплуатации

Страница: 28 / 44

28
H. Parallel Rack System Connection (R-404A)
WARNING
• Installation must be performed by properly trained and EPA-certified service
personnel.
• Failure to install the appliance within these guidelines may adversely affect safety,
performance, component life, and warranty coverage.
NOTICE
The icemaker, line set, and rack system must contain the same type of refrigerant.
Mixing of refrigerants will result in improper operation and possible damage to the
refrigeration system.
1. Line Set Size and Rack System Requirements
Line Set Size and Rack System Requirements
Hoshizaki
Icemaker Liquid
Line Suction
Line
Maximum Load at
90°F (32°C) Ambient
70°F (21°C) Water
Suction Pressure
(Evaporator Pressure Regulator (EPR)
Valve is factory adjusted. Adjust only if
necessary.)
F-1001MLJ(-C) 1/4"
OD
3/8" OD 5,700 BTU/h 31 PSIG for a -2°F (-19°C) evaporator
• Install a p-trap in the suction line if required by the rack system's instructions.
• The icemaker is shipped with a holding charge of 3.5 oz. of R-404A.
• Charging port-equipped Parker quick connect couplings are needed to connect the line set
to the icemaker.
2. Line Set Installation
1) Route the copper tube liquid line and copper tube suction line (see "II.H.1 Line Set
Size and Rack System Requirements" for details) from the rack system to the icemaker.
Leave a service loop behind the icemaker to allow the icemaker to be pulled out for
service. See Fig. 15.
NOTICE! Do not coil extra line set. Fabricate the line set to the
proper length.
2) Insulate the 2 copper tubes separately.
3) Braze the charging port-equipped Parker quick connect couplings to the icemaker end
of the copper tubes. Do not connect the charging port-equipped Parker quick connect
couplings to the icemaker at this time.
4) When using couplings to connect the line set to the rack system, braze them to the
rack system end of the copper tubes. Otherwise, braze the line set directly to the rack
system. Do not open the rack system service valves at this time.
5) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of
refrigerant to the line set copper tubes (if using an electronic leak detector), and then
raise the pressure using nitrogen gas (140 PSIG).
WARNING! DO NOT use R-404A as
a mixture with pressurized air for leak testing.