THISPRODUCTCONTAINSELECTRONICCOMPONENTSWHICHREQUIREADEFINITEGROUND.PROVISIONSAREMADEFORCONNECTIONOFTHE
GROUND.ADEDICATEDGROUNDFROMTHEMAINPOWERSUPPLYORANEARTHGROUNDMUSTBEPROVIDED.
INSTALLER
TheseinstructionsmustbeusedinconjunctionwiththelatestversionofIO-286,whichisshippedwiththeunit. Itisimportant
to follow both of these instructions and those in the latest version of IO-286 when installing th AEPF series of air handlers.
THERMOSTAT CONNECTIONS
Thefollowingcompositewiringdiagramsdetailvarious configurations in whichtheAEPF air handlers canbeused. Examples
include single-stage cooling and heat pump with single or two-stage electric heating. All these configurations can be applied
withconvenient connections to outdoorthermostat applications.
Thefollowing sections will bedetailed:
• Single-StageCooling(GMC ThermostatPart #CHT18-60or equivalent.)
• HeatPump (GMCThermostat Part#18-60or equivalent)
Each diagram details the connections between room thermostat and AEPF air handlers, and the connections between the
AEPF air handlers and the Condensing Unit (or Heat Pump) with optional connections to Outdoor Thermostats. For each
configuration,refertothe explanationof theproper jumper(s)to removefor thecorresponding blowerspeed thatwill resultinthe
programmedECM™motor.
IMPORTANT: WHEN MATCHING THE AEPF AIR HANDLERS TO A SINGLE STAGE COOLING UNIT
OR HEAT PUMP, REMEMBER TO CONNECT THE “Y/Y2” THERMOSTAT CONNECTION ON THE
VARIABLE SPEED BOARD (VSTB) TO THE THERMOSTAT. CONNECTING “Y1” WILL RESULT IN
FIRST STAGE COOLING BLOWER SPEED AND MAY CAUSE THE CONTACTOR TO CHATTER.
Anequivalent thermostat can be used inplace of the Goodman thermostat partnumber. The GMC thermostats that listed are
mercury type thermostats.
AEPF
AIR HANDLER
SUPPLEMENTAL & OPEATING INSTRUCTIONS
Goodman Manufacturing Company, L.P. © 2005-2006
2550 North Loop West, Suite 400, Houston, TX 77092
www.goodmanmfg.com -or- www.amana-hac.com
P/N:IO-287A Date: October 2006
SINGLE STAGE COOLING WITH SINGLE OR TWO-STAGE HEATING
COOLING ONLY - 2 STAGE HEAT THERMOSTAT
NOTES:
1.) Y/Y2ENABLES HI SPD FAN COOLING
2.) E/W1 ENABLES LO SPD FAN HEATING
W/W2ENABLES HI SPD FAN HEATING
3.) OT1 PJ4 MUST BE CUT FOR THIS CONFIGURATION
OTCORCE\W1 W/W2 Y1OT1 OT2
YCON
CONDENSER
PLEASE REFER
TO MANUAL
FOR PROPER
DIP SWITCH
CONFIGURATION.
R
DIP
(CFM)
ON
OFF
OUTDOOR
W1
HUM
OT2
OT1 W2
HEATPUMP
COM OW2 ED
SWITCH
HEATER
W1 W2 24 VAC
C R
CONDENSING
UNIT
THERMOSTATS
IF NEEDED
Y/Y2GHUM
Y1
HUMIDISTAT
(OPTIONAL)
HUMIDISTAT
ROOM
THERMOSTAT
W2 CRGY
W1
2nd STAGE HEATER
1st STAGE HEATER
SEE NOTE 5
4.) DIP SWITCH #4MUST BE IN THE "ON" POSITION.
5.) CUT HUM PJ6 JUMPER IF USING HUMIDISTAT.
STAT OPENS ON HUMIDITY RISE.
WARNING
WARNING HIGHVOLTAGE!
DisconnectALLpowerbeforeservicingorinstalling thisunit.Multiple
power sources may be present. Failure to do so may cause property
damage, personal injury or death.
