Bryant R-22 Especificaciones descargar pdf (Pagina 25)

SSP-SVX15C-EN

Charging Charts and Superheat

Figure 18. TWA090A

150

175

200

225

250

275

300

325

350

375

400

55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140

Dis ch arge P re s s ure, ps ig

Liquid Temperature Lea ving OD Coil, °F

TWA090A Charging Curve

dd cha rge

emove

charge

Figure 19. TWA120A

150

175

200

225

250

275

300

325

350

375

400

425

55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140

Dis ch arge P re s s ure, ps ig

Liquid Temperature Lea ving OD Coil, °F

TWA120A Charging Curve

dd cha rge

emove

charge

Figure 20. TWA180B

150

175

200

225

250

275

300

325

350

375

400

425

55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140

Dis cha rge P re s s ure, ps ig

Liquid Temperature Le aving OD Coil, °F

TWA180B Cha rging Cu rve

dd cha rge

emove

charge

Figure 21. TWA240B

150

175

200

225

250

275

300

325

350

375

400

425

55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140

Dis cha rge Pres sure, ps ig

Liquid Tem perature Lea vin g OD Coil, °F

TWA240B Charging Curve

dd cha rge

emove

charge

Table 6. TWA superheat with matched TWE air handler

Condenser Air Handler

Cooling Superheat Heating Superheat

Circuit 1 Circuit 2 Circuit 1 Circuit 2

TWA090A TWE090A 16.0 — 15.7 —

TWA120A TWE120A 16.3 — 13.1 —

TWA180B TWE180B 15.5 15.5 12.2 12.2

TWA240B TWE240B 14.7 14.7 11.4 11.4

Notes:

1. An adjustable TXV is provided for each circuit in the TWE and TWA models. If the application causes the superheat to deviate from the values shown

above by more than 1 degree - after the system has achieved steady state - the TXV should be adjusted to provide the values shown as measured at

the compressor.

2. The values given above have been tested and are approved for the matched sets shown. If an alternate combination is used, an expansion device

should be used that provides 16-20°F degrees of superheat measured at the compressor.

3. Check and adjust superheat using this table, then compare with charging chart to determine if charge corrections are necessary.

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