Hoshizaki KM-1900SAH/3 Ice Maker User Manual


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6) Evacuate through the Schrader access ports on the Parker quick connect couplings and
charge with R-404A refrigerant vapor to a pressure of 15 to 30 PSIG.
7) Connect the refrigerant lines to the appropriate male ttings on the remote condenser
unit rst and then at the icemaker. Make a proper connection as follows:
a. Remove the protective covers from the male tting and female coupling.
b. Apply Polyol Ester (POE) refrigerant oil or Parker Super O Lube to the entire male
tting, including O-ring, diaphragm, and threads, before making the connection.
SeeFig. 13.
CAUTION
Do not use thread sealant on the ttings. Use POE refrigerant oil or Parker
Super O Lube only.
c. Make sure the male tting and female coupling are properly aligned, then start the
connection by hand to ensure that it is not cross threaded.
d. Tighten the connection with a wrench until it is tight. At this point, the nut has
covered most of the threads on the male tting.
e. Mark a reference line on the female coupling and the remote condenser unit or
icemaker panel. Using a backup wrench on the back of the female coupling, tighten
the six-sided nut of the female coupling an additional 1/6 turn. See Fig. 14.
8)Ifthelinesetexceeds66feet,see"II.G.5RefrigerantCharge(LineSetExceeding
66Feet)"forproperchargingoftheunit.
Fig. 13
Fig. 12
Female Coupling
5/8"ODDischargeLine
(Insulated)
Remote Condenser Unit
3/8"ODLiquidLine
(Insulated)
Icemaker
Male Fitting
Service Loop
Apply POE Oil or
Parker Super O Lube
to Entire Male Fitting
THREAD
SEALANT
Threads
Diaphragm
O-Ring
Brush
Male Fitting
DO NOT USE
THREAD SEALANT
POLYOL
ESTER
(POE) OIL
PARKER
SUPER
O LUBE
Fig. 14
Backup
Wrench
Reference
Line
1/6
Tur n
Wrench
Wrench
After Tight, Tighten an
Additional 1/6 Turn
Backup
Wrench
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