SUCTION ACCUMULATOR

TM5-4110-234-14

TO 40R7-5-7-1

(9)

Install the evaporator air housing and screen. (see fig. 4-12.)

(10) Close all access doors.

5-24.

SUCTION ACCUMULATOR See figure 5-5 or 5-6.

a. Removal.

(1)

Pump the system down in accordance with paragraph 5-6.

(2) Connect a dry nitrogen source to the compressor suction service tee and loosen the flare nut to the

receiver outlet valve. Purge this section of tubing in accordance with paragraph 5-9.

(3)

Debraze the inlet and outlet tubing, using the techniques of paragraph 5-12.

(4) Remove the nut that secures the accumulator to the mount and lift the accumulator from the unit.

Installation.

(1)

Position the accumulator on the mount and tighten the nut that secures it.

(2) Braze the piping connections (para 5-12). Make sure that the suction line from the heat interchanger is

attached to the inlet marked IN. The outlet (which is marked OUT) must be connected to the line leading to the crankcase

pressure regulator valve.

(3)

Tighten the flare nut to the receiver outlet valve and remove the nitrogen source connection.

(4)

Replace the drier (see para 5-19).

(5) Leak test the accumulator, newly connected tubing and tubing connections in the area of the newly

brazed joints per paragraph 5-7.

(6)

Evacuate and charge the system as directed in paragraphs 5-10 and 5-11a.

(7)

Close all access doors.

5-25.

CRANKCASE PRESSURE REGULATING VALVE

a. Access. Open right side condenser section access door.

b. Adjust. Factory set point of assembled refrigerators is 14 psig (96.5 kPa) for the F10000RG-2 and 13 psig

(89.6 kPa) for the F10000R-6.

(1)

This valve has an operating point adjusting range of 0 to 40 psig (O to 275.8 kPa).

(2) One full turn of the adjusting stem will change the setting by 11.5 psig (79.3 kPa). Turn the stem

clockwise to increase, counterclockwise to decrease.

(3) After a new valve is installed, assuming that the refrigerator box temperature is above 35F (1.70C),

operate the unit, remove the cap and adjust the valve stem to a gage indication of 14 psig (96.5 kPa) for the F1000O RG-2

and 13 psig (89.6 kPa) for the F10000R-6. Note that under normal loads, the suction pressure will drop to well below the

13 or 14 psig (89.6 or 96.5 kPa) set points.

Removal.

(1) Pump the system down in accordance with paragraph 5-6.

5-25