Hoshizaki KMD-901MRH - Manual (Page 15)

15
Factory Line Set Installation
1) Route the factory line set (1/2" OD discharge line and 3/8" OD liquid line) from the
remote condenser unit to the icemaker. See Fig. 6. Factory fabricated line sets are
precharged and do not need to be evacuated.
Note: Care should be taken that the icemaker, line set, and remote condenser unit
contain the same type of refrigerant prior to making connections. Mixing of
refrigerants will result in improper operation and possible damage to the
refrigeration system.
2) Attach the refrigerant lines to the appropriate male couplings on the remote condenser
unit first and then at the icemaker. Apply two drops of POE oil to the male threads of
the couplings before tightening.
3) Tighten the couplings 1/4 turn beyond fully seated. A backup wrench is recommended.
Field Fabricated Line Set Installation
1) Route a 1/2" OD copper tubing discharge line and a 3/8" OD copper tubing liquid line
between the remote condenser unit and the icemaker. See Fig. 6.
2) Insulate the two copper tubings separately.
3) Install Parker quick connect couplings on each end. OS-QUICK, a universal quick
connect coupling kit available as optional equipment from HOSHIZAKI AMERICA, is
recommended.
4) Evacuate through the charging ports on the Parker quick connect couplings and charge
with R-404A refrigerant vapor to a pressure of 15 to 30 PSIG.
Note: Care should be taken that the icemaker, line set, and remote condenser unit
contain the same type of refrigerant prior to making connections. Mixing of
refrigerants will result in improper operation and possible damage to the
refrigeration system.
5) Attach the refrigerant lines to the appropriate male couplings on the remote condenser
unit first and then at the icemaker. Apply two drops of POE oil to the male threads of
the couplings before tightening.
6) Tighten the couplings 1/4 turn beyond fully seated. A backup wrench is recommended.
Icemaker
Fan Motor Junction Box
(Fan Motor Leads Inside)
Female Coupling
Liquid Line
3/8" OD
1/2" OD
Discharge
Line
Female Coupling
Discharge Line
Pipe Insulation
3/8" OD
1/2" OD
Liquid Line
Junction Box (Fan
Motor Leads Inside)
Louver Panel
Remote
Condenser
Unit
Fig. 6