RESIDENTIAL
AIR HANDLERS
AR SERIES
AR
Nomenclature
AR
MULTI POSITION
ELECTRIC
AIR HANDLER
COOLING CAPACITY
18 - 1-1/2 TONS
24 - 2 TONS
30/32 - 2-1/2TONS
36 - 3 TONS
42 - 3-1/2 TONS
48/49 - = 4 TONS
60 - 5 TONS
18
1
SINGLE PHASE
AR RESIDENTIAL
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
Airflow Orientation
*Horizontal Right Discharge
Tube and Drain conn. front
Downflow
discharge
(with plastic
vertical pan
only)
Horizontal Left Discharge
Tube and Drain conn. front
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)
*Upflow
Discharge
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
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
Condensate
Removal
• AR air handlers employ a drawthrough 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.
Condensate Removal
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.
Electronic Controls
Blower Fan Controls
Goodman Part #: B1370735
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
Normal Operation
• Blower On 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
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
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
Low Voltage Wiring 10 KW and Below
Low Voltage Wiring 15 KW and Above
Low Voltage Wiring for Heat Pumps
10 KW and Below
Low Voltage Wiring for Heat Pumps
15 KW and Above
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.
ORIFICE CHANGE OUTS
any questions?
Thank you!