Start-Up - Rheem RP14 14 SEER Installation Instructions Manual

START-UP

Checking Refrigerant Charge (cont�)
NOTICE:
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
SATURATION R-410A
TEMP
(Deg. F) [Deg.
C]
-150 [-101]
-140 [-96]
-130 [-90]
-120 [-84]
-110 [-79]
-100 [-73]
-90 [-68]
-80 [-62]
-70 [-57]
-60 [-51]
-50 [-46]
-40 [-40]
-35 [-37]
28
If the indoor temperature is
TEMPERATURE PRESSURE CHART
SATURATION
TEMP
PSIG
(Deg. F) [Deg.
C]
– -30 [-34]
– -25 [-32]
– -20 [-29]
– -15 [-26]
– -10 [-23]
– -5 [-21]
– 0 [-18]
– 5 [-15]
– 10 [-12]
0�4 15 [-9]
5�1 20 [-7]
10�9 25 [-4]
14�2 30 [-1]
requirement for the given outdoor and indoor
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:
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�
R-410A SATURATION
TEMP
PSIG
(Deg. F) [Deg.
C]
17�9 35 [2]
22�0 40 [4]
26�4 45 [7]
31�3 50 [10]
36�5 55 [13]
42�2 60 [16]
48�4 65 [18]
55�1 70 [21]
62�4 75 [24]
70�2 80 [27]
78�5 85 [29]
87�5 90 [32]
97�2 95 [35]
Systems should not be fine-
Excessive use of
R-410A SATURATION
TEMP
PSIG
(Deg. F) [Deg.
C]
107�5 100 [38]
118�5 105 [41]
130�2 110 [43]
142�7 115 [46]
156�0 120 [49]
170�1 125 [52]
185�1 130 [54]
201�0 135 [57]
217�8 140 [60]
235�6 145 [63]
254�5 150 [66]
274�3
295�3
R-410A
PSIG
317�4
340�6
365�1
390�9
418�0
446�5
476�5
508�0
541�2
576�0
612�8