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Installation. - TM-5-4120-339-140119
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TM-5-4120-339-14 Air Conditioner Vertical Compact 9 000 BTU/HR 208 Volts 3-Phase 50/60 HZ Tierany Model TM9KV-208-3-60 Manual
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CASING ASSEMBLY.
TM 5-4120-339-14
(9) Refer to paragraph 4-4d and repair any leaks found.
(10) With the air conditioner operating in the cooling mode, check the pressures. Pressures should be as
given in table 4-3.
(11) Close all valves and remove gages.
Table 4-3. Air conditioner operating pressures
AMBIENT
RETURN AIR
SUCTION
DISCHARGE
TEMPERATURE
TEMPERATURE
PRESSURE
PRESSURE
120F
90F DB/75F WB
85-95 PSIG
387-395 PSIG
49C
32C DB/24C WB
5.98-6.68 ks/cm2
27.21-27.71 ks/cm2
95F
80F DB/67F WB
70-80 PSIG
253-263 PSIG
35C
26.66C DB/19.44C WB
4.92- 5.62 ks/cm2
17.8-18.5 ks/cm2
DB = dry bulb WB = wet bulb
4-23.
a. Inspection. Refer to figure 4-20 and inspect the compressor crankcase heater for damage which would impair
serviceability.
b. Test. Refer to figure 4-20 and check for continuity between pins F and G of compressor electrical receptacle.
c.  Replace. Replace compressor crankcase heater if damage would impair serviceability or if failure occurs
during testing.
4-24.
TUBING AND PIPING.
a. Inspection. Inspect tubes and pipes for breaks and for damage which would impair serviceability.
b. Test. Refer to paragraph 4-4c and check tubes and pipes for refrigerant leakage.
c.
Repair. Refer to paragraph 4-4d and repair all leaks found.
d. Replace. Replace unrepairable tubing and piping as follows:
(1) Refer to figure 4-2 and release refrigerant from the system.
(2) Refer to figure 4-18 and replace defective tubing and/or piping.
(3) Refer to paragraph 4-8 and purge the refrigerant system.
(4) Refer to paragraph 4-4c and check replaced tubing or piping and the dehydrator for leaks. Refer to
paragraph 4-4d and repair any leaks found.
(5) Refer to figure 4-4 and evacuate the refrigerant system.
4-46

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