INSTALLATION STEPS
10
IMPORTANT
:
The TXV should be mounted as close to the indoor air handler coil as possible with the thermal bulb securely
mounted and insulated.
(NOTE)
When using the Hallowell matched air handler and/or TXV kit, see (Appendix A – Factory Supplied Air Handler TXV Kit
Installation Instructions).
IMPORTANT:
If replacing an existing hot air furnace, make sure the ductwork is sized appropriately for the airflow needed by the
Acadia. Insulating and sealing the ductwork will increase the efficiencies and performance of the Acadia.
Step 5—Making Piping Connections
(DANGER)
Recover all refrigerant and/or relieve any pressure before system repairs or final unit disposal to avoid personal
injury or death.
(CAUTION)
An oil trap must be installed at the bottom of any vapor line riser. If the riser is over 10-ft. (3.04-m.), contact
Hallowell International Technical Support.
(NOTE)
The Acadia outdoor unit must be connected to a factory-approved indoor air handler.
(NOTE)
The Acadia outdoor unit is charged with 50 PSI of dry nitrogen. If less nitrogen is present in the outdoor unit, contact
Hallowell International Technical Support before going further. Additional steps may be required if the system has lost the
factory nitrogen charge.
The whole system, when installed, must be evacuated to 500 microns to eliminate contamination and moisture in the system.
The Acadia outdoor unit(s) is/are carefully evaluated and listed with specific indoor coils and fans for proper system efficiency,
performance, and reliability.
REFRIGERANT TUBING & FILTER DRIER
IMPORTANT:
If the Acadia system is replacing an existing R-22 based heat pump or air conditioner, all piping must be replaced at
the time of the new installation. Mineral oil used in R-22 systems is incompatible with the POE oil used in R-410A systems like the
Acadia. Consult Hallowell International Technical Support with any questions.
(CAUTION)
The filter drier must be a Bi-Flow, Heat pump, and R-410A type filter drier.
(NOTE)
The filter drier must be installed as close to the indoor air handler and insulated to prevent heat loss. The Acadia
recovers waste heat from the liquid line in the heating mode.
Insulate the filter drier with 1/2" thick insulation after installation
to help retain heat.
(NOTE)
DO NOT
install a liquid line sight glass.
PRECAUTIONS DURING LINE SET INSTALLATION
(CAUTION)
Be sure nitrogen is flowing through the system prior to any brazing for the prevention of carbonization and
contamination of the system.
(CAUTION)
The Acadia system uses POE oil for the compressor lubricant. Preventative measures should be taken to minimize
and eliminate the possibility of atmospheric pressure entering the system. Use a nitrogen purge to prevent ambient air from
entering the system during piping connections. Take the proper precautions during piping installation.
(NOTE)
Both the vapor line and the liquid line must be insulated separately.
Summary of Contents for Acadia i Series
Page 44: ...APPENDIX B WIRING DIAGRAMS 43 Figure 8 Line Voltage Wiring...
Page 45: ...APPENDIX B WIRING DIAGRAMS 44 Figure 9 Hallowell Controller Wiring...
Page 47: ...APPENDIX B WIRING DIAGRAMS 46 Figure 12 Entire Low Voltage Wiring with Electric Back Up...
Page 48: ...APPENDIX B WIRING DIAGRAMS 47 Figure 13 Entire Low Voltage Wiring with Dual Fuel Back Up...
Page 54: ...APPENDIX D ACADIA OUTDOOR UNIT MOUNTING 53 Figure 15 Typical Acadia Mounting...
Page 56: ...APPENDIX E ACADIA COMPONENTS 55 Figure 17 Acadia Components...
Page 57: ...APPENDIX F EWC ZONE CONTROL 56 Figure 18 Acadia with EWC Zone Control Wiring...
