Hoshizaki FD-1001MRH(-C), FD-1001MLH(-C), FD-1001MAH(-C) Rack System-Braze Connection

7)Connect the refrigerant lines to the appropriate fittings on the rack system first (if not already brazed on), then at the icemaker.

If the couplings to the rack system are not Parker quick connect couplings, follow the coupling manufacturer's instructions. Make a proper Parker quick connect coupling connection as follows:

a. Remove the protective covers from the male fitting and female coupling.

b. Apply Polyol Ester (POE) refrigerant oil to the entire male fitting, including threads, o‑ring, and diaphragm, before making the connection. See Fig. 12.

CAUTION

Do not use thread sealant on the fittings. Use POE refrigerant oil 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. Place a backup wrench on the back of the female coupling, then 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. CAUTION! Failure to use a backup wrench may result in damage to the line set and possible refrigerant leaks.

e. Mark a reference line on the female coupling and the unit 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. 13.

8) Open the rack system service valves.

Rack System-Threaded Connection

Male Threaded Fitting

		Male Fitting	Icemaker
Female Threaded Coupling
3/8" OD Suction Line
(Insulated)	Female Coupling
1/4" OD Liquid Line	(Charging Ports)
(Insulated)	3/8" OD Suction Line
	(Insulated)
Rack System-Braze Connection		1/4" OD Liquid Line
Braze Conneciton		(Insulated)
3/8" OD Suction Line
(Insulated)

	1/4" OD Liquid Line	Service Loop
Fig. 11
	(Insulated)

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