Hoshizaki C-100BAF-ADDS 10Remove the packing, 12Remove the evaporator condensate drain pan

9)Disconnect the drain hose and reservoir hose from the evaporator.

10)Remove the packing.

11)Remove the allen head cap screws securing the extruding head and evaporator flange. Remove the evaporator flange, then grasp the cutter and carefully lift out the cutter and extruding head. Grasp the top of the auger and carefully lift out the auger. When pulling out the auger, the upper part of the mechanical seal should come out with it.

12)Remove the evaporator condensate drain pan.

13)Install a temporary tap-line valve on the high side, then recover the refrigerant and store it in an approved container.

14)Disconnect the inlet and outlet tubing.

15)Remove the allen head cap screws securing the evaporator to the lower housing.

16)Lift off the evaporator.

17)Inspect the mechanical seal and O-ring prior to installing the new evaporator. The mechanical seal consists of two parts. One moves along with the auger, and the other is fixed on the lower housing. If the contact surfaces of these two parts are worn, cracked or scratched, the mechanical seal may cause water leaks and should be replaced. Instructions for removing the mechanical seal and lower housing are located later in this procedure.

18)Make sure the lower mechanical seal and the O-ring are in place, then place the evaporator assembly in position. Secure the evaporator to the lower housing using the allen head cap screws.

19)Replace the tap-line valve with a proper, permanent access valve.

20)Remove the drier, then place the new drier in position.

21)Braze all fittings while purging with nitrogen gas flowing at a pressure of 3 to 4 PSIG.

22)Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of refrigerant to the system (if using an electronic leak detector), and then raise the pressure using nitrogen gas (140 PSIG). DO NOT use R-134a as a mixture with pressurized air for leak testing.

23)Evacuate the system, and charge it with refrigerant. See the nameplate for the required refrigerant charge.

24)Reattach and secure the reservoir hose, drain hose, and drain plug.

25)Install the auger assembly with the upper part of the mechanical seal attached. Replace the cutter, extruding head, and evaporator flange in their correct positions.

26)Open the water supply line shut-off valve and check for water leaks. Replace the removed parts in the reverse order of which they were removed.

27)Plug the unit back in. Move the power switch to the "ON" position.

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