1. RESIDENTIAL AIR HANDLERS
AR SERIES

2. AR

3. Nomenclature

4. AR RESIDENTIAL

5. AR Multi-position electric air handler
Versatile up flow, right or left horizontal, and counter flow multi-position
May be located in closet, utility room, attic, or basement
Equipped with a check flow rater for Heat pump and Cooling Unit Operation
Power supply entry at top

6. Airflow Orientation *Upflow Discharge Important:
Remove the horizontal pan when unit is installed in unconditioned i.e. (Garage, Attic) application, or downflow applications, and install insulation kit on vertical (donut shape) drain pan. Insulation kits should be ordered as follows:
DPI 18-30/20 (AR18-32)
DPI 36-42/20 (AR36-42)
DPI 48-61/20 (AR48-61)
*Horizontal Right Discharge
Tube and Drain conn. front
Downflow discharge
(with plastic vertical pan only)
*Upflow
Discharge
Horizontal Left Discharge
Tube and Drain conn. front

7. AR Air Handlers
All air handlers use direct drive motors. Power supply is 208/230 Volts, 60 HZ, 1 Phase
AR is designed for zero (0”) inch clearance, however, adequate access for service or replacement must be considered

8. Refrigerant tubing
Refrigerant tubing should be installed as to avoid undue stress.
Suction tube should be insulated with a closed cell insulation and the seams sealed

9. Condensate Removal
AR air handlers employ a draw-through coil, therefore a trap must be installed in the drain lines.
A “P” trap is required.
Precautions must be used not to over tighten the adapter at the drain pan connection.
A joint compound should be used to prevent leakage and act as a lubricant.
All condensate drain lines and drain traps should be adequately insulated.
The unit and the auxiliary drain pan must be adequately elevated to insure proper drainage.

10. Condensate Removal

11. Electrical connections
Copper wire is recommended for all electrical connections.
24 Volt thermostat connections
Goodman Cooling and Heating thermostat part number is CHT18-60.
Goodman Heat Pump thermostat part number is HPT18-60.

12. Electronic Controls Blower Fan Controls

13. Goodman Part #: B

14. Operating Tolerances & Ranges
+80 to -40 Degrees Celsius (+176 to -40 F)
5% to 95% R.H. Non-Condensing
18 to 30VAC Control Voltage
Frequency - 60Hz/50Hz
Approved to UL353

15. Normal Operation Blower On Delay Blower Off Delay
“G” Input Energizes
Blower Motor energized after a 7 second delay
Blower Off Delay
“G” Input De-energizes
65 Second Delay before Blower Motor turns off.
Field And Factory Speedup Test Mode
If “R” applied to “SPEEDUP” Terminal
Both “G” Delay Timings On & Off are Immediate
If “C” applied to SPEEDUP Terminal
Delay On Timing is 3 Seconds
Delay Off Timing is 5 Seconds

16. Field Returns Handling Boards by Edges or Use ESD Ground Strap
Boxes or Bags for Field Returns
No Repeated Control Change-out
Moisture Control in Board Area
Return Tag Information

17. Ground Check Meter set to Ohms or Resistance Setting
Place Meter from GROUND quick connect to chassis ground
Reading should be near Zero ohms
Issue: GROUND Quick Connect Loose ; causes board resetting when blower starts
Issue: Flame Sensing problems if improper grounding in system

19. Low Voltage Wiring 10 KW and Below

20. Low Voltage Wiring 15 KW and Above

21. Low Voltage Wiring for Heat Pumps
10 KW and Below

22. Low Voltage Wiring for Heat Pumps
15 KW and Above

23. Orifice Change
The restrictor (orifice) included in this unit should match the comparable capacity of the outdoor unit.
The restrictor (orifice) should be replaced before any tubing connections are made.
The capacity of the outdoor unit should never exceed the capacity of the indoor unit.

24. ORIFICE CHANGE OUTS

25. any questions?
Thank you!