Sub-Zero 424FS, Руководство по обслуживанию

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Page 13
400 Series
400 Series
Component Access and Removal
6-13
Figure 6-25. Capillary Tube, Refrigerant
Valve, Filter-Drier
Dual Outlet Filter Drier
Refrigerant Valves
Capillary Tubes
Valve Brackets
P-Clamp
Screw
Lower Evaporator Assembly Access and Removal
(Model 424)
The evaporator assembly consists of the evaporator
and heat exchanger. The evaporator is mounted to the
rear wall with Phillips-head screws, and the heat
exchanger is routed out the back wall down to the unit
tray where the capillary tube is attached to the refriger-
ant valve, and the suction line is attached to a "T" con-
nection that runs to the compressor suction port.
(See
Figures 6-23, 6-24, 6-25)
After evacuating the refrigerant from the sealed system,
begin the access and removal procedure inside the unit
by removing the three wine racks, all cabinet slides,
cabinet slide spacers and cabinet slide support spacers
in the lower compartment. Then, remove the evapora-
tor fan cover mounting screws, the evaporator fan
cover, the evaporator cover and the evaporator support
covers. Extract the evaporator mounting screws. Now,
remove the access panel from the bottom back of the
unit. Remove the door closer
(See DOOR CLOSER
WARNING at beginning of this section.) Extract the
four screws securing the unit tray to the cabinet on the
left side, and loosen the four screws on the right side.
Separate the unit tray from the cabinet by leaning the
cabinet to the right, then insert a spacer between the
cabinet and unit tray.
(A small piece of 2x4 lumber
works well.) (See Figure 6-8) Cut the cap tube from
the outlet port of the refrigerant valve and cut the suc-
tion line from the "T" connector. Then, pull the evapora-
tor assembly from the front of the unit.
Refrigerant valve access and removal (Model 424)
The refrigerant valves are attached to the valve brack-
ets with screws and tube clamps, at the back left of the
unit tray.
(See Figure 6-25) The upper compartment
valve is the farthest left.
After evacuating the refrigerant from the sealed system,
begin the access and removal procedure by removing
the access panel from the bottom back of the unit.
Remove the door closer
(See DOOR CLOSER WARN-
ING at beginning of this section.) Extract the four
screws securing the unit tray to the cabinet on the left
side, and loosen the four screws on the right side.
Separate the unit tray from the cabinet by leaning the
cabinet to the right, then insert a spacer between the
cabinet and unit tray.
(A small piece of 2x4 lumber
works well.) (See Figure 6-8) Remove the screws
securing the valve to the valve bracket and pull the
valve upward slightly. Cut the cap tube from the outlet
port of the refrigerant valve and cut the filter-drier stub
from the inlet port of the valve.
Filter-Drier Access and Removal (Model 424)
The filter-drier is located on the left-hand side of the unit
tray. The filter-drier used on the 400 Series has dual
outlet ports that connect to both refrigerant valves.
(See Figure 6-25)
After evacuating the refrigerant from the sealed system,
begin the access and removal procedure by removing
the access panel from the bottom back of the unit.
Remove the door closer
(See DOOR CLOSER WARN-
ING at beginning of this section.) Extract the four
screws securing the unit tray to the cabinet on the left
side, and loosen the four screws on the right side.
Separate the unit tray from the cabinet by leaning the
cabinet to the right, then insert a spacer between the
cabinet and unit tray.
(A small piece of 2x4 lumber
works well.) (See Figure 6-8) Cut the filter-drier outlet
ports leading to both refrigerant valves and the filter-
drier inlet tube coming from the condenser.