305
TROUBLESHOOTING
7. Standard Operation Data
8 TON
15 TON
Rated cooling
Overloaded cooling
(outside air 115℉(46℃)
Rated heating
Engine speed rpm (min
-1
) 1700 (1700) 1500 (1500) 1750 (1750)
Number of compressors - 2 2 2
Compressor intake pressure psi (MPa) 133 (0.92) 146 (1.01) 113 (0.78)
Compressor intake temperature ℉ ( ℃ ) 64 (18) 77 (25) 63 (17)
Compressor discharge pressure psi (MPa) 365 (2.52) 463 (3.19) 392 (2.70)
Compressor discharge
temperature
℉ ( ℃ ) 138 (59) 163 (73) 160 (71)
Number of outdoor fans - 2 2 2
Outdoor heat exchanger liquid
flow control valve open position
stp 0 0 125
Sub heat exchanger liquid flow
control valve open position
stp 0 0 122
Subcooling valve open position stp 462 500 68
Electromagnetic compressor
capacity valve 1
- OFF OFF OFF
Electromagnetic compressor
capacity valve 2
- OFF OFF OFF
OCR valve open position stp 349 349 201
Engine coolant temperature ℉ ( ℃ ) 158 (70) 165 (74) 144 (62)
Rated cooling
Overloaded cooling
(outside air 115℉(46℃)
Rated heating
Engine speed rpm (min
-1
) 2000 (2000) 1100 (1100) 1950 (1950)
Number of compressors - 2 2 2
Compressor intake pressure psi (MPa) 119 (0.82) 154 (1.06) 110 (0.76)
Compressor intake temperature ℉ ( ℃ ) 66 (19) 81 (27) 57 (14)
Compressor discharge pressure psi (MPa) 425 (2.93) 473 (3.26) 408 (2.81)
Compressor discharge
temperature
℉ ( ℃ ) 167 (75) 165 (74) 160 (71)
Number of outdoor fans - 2 2 2
Outdoor heat exchanger liquid
flow control valve open position
stp 0 0 165
Sub heat exchanger liquid flow
control valve open position
stp 0 0 220
Subcooling valve open position stp 198 500 40
Electromagnetic compressor
capacity valve 1
-OFF OFF OFF
Electromagnetic compressor
capacity valve 2
-OFF OFF OFF
OCR valve open position stp 449 447 425
Engine coolant temperature ℉ ( ℃ ) 165 (74) 162 (72) 145 (63)
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