Finishing Up Installation - Rheem RA1460AJ1NA Installation Instructions Manual

Checking Refrigerant Charge (cont�)
NOTICE:
If the indoor temperature is
above or below the recommended range, run the
system to bring the temperature down or run the
electric heat/furnace to bring the temperature
up� System subcooling values provided in
the Charging Chart for outdoor dry bulbs
corresponding to conditions outside of the above
range are provided as reference ONLY�
2� Note the measured Liquid Pressure, Pliq =
______psig, as measured from the liquid
(small) service valve� Use the Temperature
Pressure Chart below to note the corresponding
saturation 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
probe located within 6" [15.2 cm] 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�
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
value� If the measured subcool is below the listed
requirement for the given outdoor and indoor
SATURATION R-410A
TEMP
PSIG
(Deg. F) [Deg.
C]
–
-150 [-101]
-140 [-96] –
-130 [-90] –
-120 [-84] –
-110 [-79] –
-100 [-73] –
-90 [-68] –
–
-80 [-62]
-70 [-57] –
-60 [-51] 0�4
-50 [-46] 5�1
-40 [-40] 10�9
-35 [-37] 14�2
TEMPERATURE PRESSURE CHART
SATURATION R-410A
TEMP
PSIG
(Deg. F) [Deg.
C]
-30 [-34] 17�9
-25 [-32] 22�0
-20 [-29] 26�4
-15 [-26] 31�3
-10 [-23] 36�5
-5 [-21] 42�2
0 [-18] 48�4
5 [-15] 55�1
10 [-12] 62�4
15 [-9] 70�2
20 [-7] 78�5
25 [-4] 87�5
30 [-1] 97�2
conditions, add charge� If the measured subcool
is above the listed requirement for the given
outdoor and indoor conditions, remove charge�

Finishing Up Installation

• Disconnect pressure gauges from pressure ports;
then replace the pressure port caps and tighten
adequately to seal caps� Do not overtighten.
• Replace the service valve caps finger-tight
and then tighten with an open-end wrench
adequately to seal caps� Do not overtighten.
• 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�
NOTICE:
Systems should not be fine-
tune charged below 40°F [4.4°C] outdoor dry bulb.
IMPORTANT:
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 performed by trained and qualified HVAC
professionals� For technical assistance, contact
your Distributor Service Coordinator�
SATURATION R-410A
TEMP
PSIG
(Deg. F) [Deg.
C]
35 [2] 107�5
40 [4] 118�5
45 [7] 130�2
50 [10] 142�7
55 [13] 156�0
60 [16] 170�1
65 [18] 185�1
70 [21] 201�0
75 [24] 217�8
80 [27] 235�6
85 [29] 254�5
90 [32] 274�3
95 [35] 295�3
START-UP
Excessive use of
SATURATION R-410A
TEMP
PSIG
(Deg. F) [Deg.
C]
100 [38] 317�4
105 [41] 340�6
110 [43] 365�1
115 [46] 390�9
120 [49] 418�0
125 [52] 446�5
130 [54] 476�5
135 [57] 508�0
140 [60] 541�2
145 [63] 576�0
150 [66] 612�8
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