Fujitsu FO2416RTJNAA Installation Instructions Manual page 29

5.0 SYSTEM START-UP & REFRIGERANT CHARGING
NOTICE:
If the indoor temperature is
electric heat/furnace to bring the temperature up.
2. Note the measured Liquid Pressure, Pliq =
______psig, as measured from the liquid (small)
service valve. Use the Temperature Pressure
temperature for R-410A at the measured liquid
pressure.
Liquid Saturation Temperature, SAT°= _____°F
[_____°C].
3. Note the liquid line temperature, Liq° = _____°F
[_____°C], as measured from a temperature
the unit on the copper liquid line (small line).
It is recommended to use a calibrated clamp-
on temperature probe or an insulated surface
thermocouple.
4. Subtract the liquid line temperature from the
saturation temperature to calculate subcooling.
SAT°_____°F [_____°C] - Liq°_____°F [_____°C]
= SC°_____°F [_____°C]
5. Adjust charge to obtain the specified subcooling
the listed requirement for the given outdoor
temperature, add charge. If the measured
subcooling level is above the listed requirement
for the given outdoor temperature, remove
charge.
5.4.5 R-410A Temperature
Pressure Chart
SATURATION R-410A SATURATION R-410A
TEMP TEMP
PSIG PSIG
(Deg. F) (Deg. F)
[Deg. C] [Deg. C]
5.5 Completing Installation
• Disconnect the hoses from the pressure ports. Replace
the pressure port caps and tighten adequately to seal
caps. Do not overtighten.
• Replace the service valve top caps finger-tight and then
overtighten.
• Replace control box cover and service panel and install
• Configure thermostat per the thermostat installation
instructions and set to desired mode and temperature.
SATURATION R-410A SATURATION R-410A
TEMP TEMP
PSIG PSIG
(Deg. F) (Deg. F)
[Deg. C] [Deg. C]
Do not
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