Rheem ARL-JEZ 16 Seer Series, Installation Instructions Manual, Page: 18 / 40

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Step 2. Note the measured Liquid Pressure, Pliq = ______psig, as measured from
the liquid (small) service valve. Use the pressure temperature chart below
to note the corresponding saturation temperature for R410A at the
measured liquid pressure.
Liquid Saturation Temperature, SAT°F= _________°F.
Step 3. Note the liquid line temperature, Liq° = __________°F, as measured from
a temperature probe located within 6” outside of 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.
Step 4. Subtract the liquid line temperature (Step 3) from the saturation
temperature (Step 2) to calculate Sub-Cooling. SAT°F______ - Liq°______
= SC°_______
Step 5. Adjust Charge to obtain the specified sub-cooling value. If the measured
sub-cool is below the listed requirement for the given outdoor and indoor
conditions, add charge. If the measured sub-cool is above the listed
requirement for the given outdoor and indoor conditions remove charge.
IMPORTANT: Excessive use of elbows in the refrigerant line set can produce
excessive pressure drop. Follow industry best practices for installation. Installation
and commissioning of this equipment is to be preformed by trained and qualified
HVAC professionals. For technical assistance contact your Distributor Service
Coordinator.
FINISHING UP INSTALLATION
• Disconnect pressure gauges from pressure ports; then replace the pressure port
caps and tighten adequately to seal caps. Do not over tighten.
• Replace the service valve caps finger-tight and then tighten with an open-end
wrench adequately to seal caps. Do not over tighten.
• Replace control box cover and service panel and install screws to secure service
panel.
• Restore power to unit at disconnect if required.
• Configure indoor thermostat per the thermostat installation instructions and set
thermostat to desired mode and temperature.
TABLE 6
SATURATION
TEMP
(Deg. F)
R-410A
PSIG
SATURATION
TEMP
(Deg. F)
R-410A
PSIG
SATURATION
TEMP
(Deg. F)
R-410A
PSIG
SATURATION
TEMP
(Deg. F)
R-410A
PSIG
-150 - -30 17.9 35 107.5 100 317.4
-140 - -25 22 40 118.5 105 340.6
-130 - -20 26.4 45 130.2 110 365.1
-120 - -15 31.3 50 142.7 115 390.9
-110 - -10 36.5 55 156.0 120 418.0
-100 - -5 42.2 60 170.1 125 446.5
-90 - 0 48.4 65 185.1 130 476.5
-80 - 5 55.1 70 201.0 135 508.0
-70 - 10 62.4 75 217.8 140 541.2
-60 0.4 15 70.2 80 235.6 145 576.0
-50 5.1 20 78.5 85 254.5 150 612.8
-40 10.9 25 87.5 90 274.3
-35 14.2 30 97.2 95 295.3
!
NOTICE
Systems should not be fine tune charged below 40°F outdoor dry bulb.