Hoshizaki KM-1900SAH/3 Instruction Manual page 24

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 fittings on the remote condenser
unit first and then at the icemaker. Make a proper connection as follows:
a. Remove the protective covers from the male fitting and female coupling.
b. Apply Polyol Ester (POE) refrigerant oil or Parker Super O Lube to the entire male
fitting, including O-ring, diaphragm, and threads, before making the connection.
See Fig. 13.
Do not use thread sealant on the fittings. Use POE refrigerant oil or Parker
Super O Lube only.
c. Make sure the male fitting 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 fitting.
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.
Remote Condenser Unit
Fig. 12
Male Fitting
Brush
Fig. 13
Threads
Reference
Line
Fig. 14
Backup
Wrench
CAUTION
Apply POE Oil or
Diaphragm
Parker Super O Lube
to Entire Male Fitting
O-Ring
Wrench
After Tight, Tighten an
Additional 1/6 Turn
Male Fitting
Female Coupling
5/8" OD Discharge Line
(Insulated)
3/8" OD Liquid Line
(Insulated)
Service Loop
POLYOL
ESTER
(POE) OIL
PARKER
O LUBE
SUPER
24
Icemaker
DO NOT USE
THREAD SEALANT
THREAD
SEALANT
1/6
Turn
Wrench
Backup
Wrench