DUCTED INDOOR UNITS
Part 4: Components
4.1 Coil
A. Coil shall be painted with a hydrophilic coating to increase airflow efficiency.
B. Copper tubing shall have inner micro grooves to increase effective heat transfer capabilities.
C. Coils shall be pressure tested at 600~650 PSI using Helium leak detection.
D. The coil shall be charged with dry nitrogen for shipping at 70~100 PSI dwelling pressure.
4.2 Fan Motor
A. The ducted fan motor shall be a sealed DC resin-packed motor.
B. The fan motor shall have permanently lubricated bearings
4.3 Fan Blade
A. The fan blade shall be a noncorrodible centrifugal fan blower.
4.4 Copper Piping
A. The coil shall be connected to a length of insulated annealed copper.
B. The ends of the tubing shall have female flare connections.
4.5 Filter
A. The ducted indoor unit shall have removable air filters.
B. The air filters shall be washable and reusable.
4.6 Control
A. The ducted indoor unit shall ship with a wall mountable control (YR-E17).
B. The ducted indoor unit shall be compatible with YR-E17, YR-E16B and QACT17A wired controls.
Part 5: Supply and Return Air Panels
5.1 Supply Grille Panel
A. For models AD07SL2VHB, AD09SL2VHB, AD12SL2VHB shall be compatible with the air supply panel
PAD0890SA.
B. The PAD0890SA air supply shall be distributed by horizontal and vertical motorized louvers.
C. For AD18SL2VHB shall be compatible with the air supply panel PAD1210SA.
D. The PAD1210SA air supply shall be distributed by horizontal and vertical motorized louvers.
5.2 Return Grille Panel
A. For models AD07SL2VHB, AD09SL2VHB, AD12SL2VHB shall be compatible with the air return panel
PAD0890RA.
B. The PAD0890SRA air return panel shall have a customer removable air filter that can be washed and reused.
C. For AD18SL2VHB shall be compatible with the air supply panel PAD1210RA.
D. The PAD1210RA air return panel shall have a customer removable air filter that can be washed and reused.
16
31-5000410 Rev. 0