Carrier Aquazone VQP 072 Installation, Start-Up And Service Instructions Manual page 64

CAUTION
Puron ® refrigerant (R-410A) requires the use of synthetic
lubricant (POE oil). Do not use common tools on systems that
contain R-22 refrigerants or mineral oil. Contamination and
failure of this equipment may result.
IMPORTANT: Due to the hygroscopic nature of the POE oil in
Puron refrigerant (R-410A) and other environmentally balanced
refrigerants, any component replacement must be conducted in a
timely manner using caution and proper service procedure for
these types of refrigerants. A complete installation instruction
will be included with each replacement TXV/filter drier
assembly. It is of critical importance these instructions are
thoroughly understood and carefully followed. Failure to follow
these instructions can result in a system that is contaminated with
moisture to the extent that several filter drier replacements may
be required to properly dry the system.
Airflow
Distributor
LEGEND
AP
Access Point (1/4" Male NPT)
HPS High Pressure Switch
Insulated Piping (Extended Range Only)
LPS
Low Pressure Switch
Test Point for Water Regulating Valve (Optional)
Only Present on Scroll
Compressor Models
All Pilot and Equalizer Lines 1/4" OD
IMPORTANT: Repair of any sealed refrigerant system requires
training in the use of refrigeration tools and procedures. Repair
should only be attempted by a qualified service technician. A
universal refrigerant handling certificate will be required. Local
and/or state license or certificate may also be required.
AP*
Equalizer Line***
Expansion Valve
Solenoid
Reversing
Valve
Fig. 52 — Typical Refrigerant Diagram
64
CAUTION
Disconnect power from unit before removing or replacing
connectors, or servicing motor. Wait 5 minutes after
disconnecting power before opening motor.
Hot Gas Line
Condenser
Coil
Filter
Drier**
Coil
Disch.
Out
AP
HPS
Water
LPS
AP
TXV Sensing Bulb
Suct. In