Trane 4TTA4, Инструкция по установке и эксплуатации

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22 18-AC108D1-1D-EN
STEP 3
- Check the liquid line temperature and
liquid gage pressure to obtain a minimum of 10º
subcooling in heating mode.
Measured Liquid Line Temp = __________ º F
Liquid Gage Pressure = __________ PSIG
STEP 4 - Add charge if a minimum of 10º sub-
cooling is not obtained with the namplate charge
plus additional charge previously added.
STEP 5 - Return to site for adjustment.
Important: Return in the spring or summer to
accurately charge the system in the cooling
mode with outdoor ambient
above 55º F .
20 MIN.
STEP 2
- Stabilize the system by operating for a
minimum of 20 minutes.
At startup, or whenever charge is removed or
added, the system must be operated for a mini-
mum of 20 minutes to stabilize before accurate
measurements can be made.