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Table 1 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.)
Information is Specific to 286A and 288A Models
UNIT SIZE
LIQUID RATED VAPOR*
Connection
Diameter
Tube
Diameter
Connection
Diameter
Tube
Diameter
286A024 3/8 3/8 5/8 5/8
286A036 3/8 3/8 3/4 3/4
286A048 3/8 3/8 7/8 7/8
286A060 3/8 3/8 7/8 1--1/8
288A024
3/8 3/8 3/4 3/4
288A036
3/8 3/8 3/4 3/4
288A048
3/8 3/8 7/8 7/8
288A060
3/8 3/8 7/8 1--1/8
* Units are ratedwith 25 ft. (7.6 m) of lineset. See Product Data sheet for performance data when using different size an d length linesets.
Notes:
1. Do not apply capillary tube or the fixed orifice indoor coils to these units.
2 For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) hor izontal or 20 ft. (6.10 m) vertical differential (250 ft./76.2 m Total Equivalent Length),
refer to the Residential Piping and Long Line Guideline for Air Conditioners and HeatPumpsusing Puron®Refrigerant.
Table 2 – Accessory Usage
ACCESSORY
REQUIRED FOR LOW---AMBIENT
COOLING APPLICATIONS
(Below55°F/12.8_C)
REQUIRED FOR LONG LINE
APPLICATIONS*
REQUIRED FOR SEA COAST
APPLICATIONS
(Within 2 miles/3.22 km)
Crankcase Heater Standard
Standard
Standard
Evaporator Freeze Protection
Standard with E volu tiont Control
(Low Ambient not allowed with
non---communicating thermostat)
No No
Winter Start Control
Standard with Evolution Control
(Low Ambient not allowedwith non---
communicatingthermostat)
No No
Compressor Start Assist Capacitor
and Relay}
Standard on 286A models.
Not required for 288A
Standard on 286A models.
Not required for 288A
Standard on 286A models
Not required for 288A
Low---Ambient Control
Standard with Evolution Control
(Low ambient n ot allowed with non---
communicatingthermostat)
No No
Support Feet Recommended No Recommended
Liquid---Line Solenoid Valve No
Yes
No
Puron Refrigeran t Balance Port
Hard --- Shut Off TXV
Yes{
Yes{
Yes{
* For tubing set l engths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (total equivalent l ength), refer to the
Residential Piping and Long Line Guideline for Air Conditionersand HeatPumpsusing Puron®Refrigerant.
{ Requiredon all indoor units. Standard on all new Puron refrigerant fan coils and furnace coils.
} Informa tion is specificto 286A and 288A models.
the environmentally sound refrigerant
REGISTERED
ISO 9001:2000
Thisproducthasbeendesignedandmanufacturedto
meet Energy Star® criteriaforenergyefficiency when
matchedwithapprop riatecoil components. However,
proper refrigerantchargeandproperairflow arecritical
toachieveratedcapacityandefficiency. Installationof
thisproductshouldfollowallmanufacturingrefrigerant
chargingandairflowinstructions. Failuretoconfirm
properchargeandairflowmayreduceenergy
efficiencyandshortenequipment life.
Ready foruse in a Hybrid HeatrDuel Fuel system.
286A / 288A