Installation guide

NOTE: Refer to the heating and/or anollng sequence of operation in this publieatlan as an aid in de'_nlning tTmpar eantml operation
O, REFRIGERANT CIRCUIT
Annually inspect oN refrlgevant tubing conneetious and the lmit base for oil ananmuiatious, Detecting oil ganerally indicates a refrigerant leak,
Z]X WARNING: System under pressure, Relieve pressure and recover all refrigerant before system repair or final unit
disposal to avoid serious injury or death, Use all service ports and open all flow-control devices, including solenoid valves.
If oi1 is detanted or if low cooling performance is suspected, leak-test oll refrigerant tubing using an clcetTonie leak-deteator, halide torch, or
liquid/soap solution. If a refrigerant leak is detected, refer to the ChechJbr Refi'igerant I_al_" section.
If no refrigerant leaks are fbund and low anollng performance is s_pceted, refL_rto the ChecMng and Adju_.ting ReJkigerant Charge scetSan,
P, GAS INPUT
The gas input does not require checking unless imtTmpar heating performance is s_pceted. If a problem exists, refer to the Start-Up section.
Q, EVAPORATOR AIRFLOW
The heating and/or cooling _flow does not require ehec_ng _.mlessimproper pefformanec is suspected, ffa problem eM_'ts,t_ s_re that all supply-
and ret_mt-air grilles are open and fi'ee f!'om obstractions, and that the air filter i_"clean, Vv_an nceas_.13,, refL_rto the Indoor Airflow and Airflow
Ad_tTnents section to cheek the system airflow.
R. METERING DEVICE-- ACUTROL DEVICE
metering de,Bee is a fixed orifice and is located in the header to the evaporator coil.
S, LIQUID LINE STRAINER
The llqmd llne st_'uiner (to protect metering de,Bee) is made of wlre mesh mad located in the liltuid line on the inlet side of the metering de,Bee,
TROUBLESHOOTING
Use the Troubleshooting (h_ides (See Tables 16-18) if problems occur with these units,
START-UP CHECKLIST
Use the Start-Up Checklis't to ensure proper st0xt-up procedures are fi)llowcd.
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