Lennox International Inc 506945-01 Setting the Unit CONTIN­ UED -- Unit Placement, Slab Mounting

Page 2

UNIT DIMENSIONS - INCHES (MM)

A

 

B

 

 

SIDE

 

 

VIEW

 

 

FIGURE 2

 

 

TABLE 1

 

 

UNIT DIMENSIONS

 

Model Numbers

A

B

13ACX-018-230

24-1/4 (616)

25-1/4 (641)

13ACX-024-230

24-1/4 (616)

25-1/4 (641)

13ACX-030-230

24-1/4 (616)

29-1/4 (743)

13ACX-036-230

24-1/4 (616)

29-1/4 (743)

13ACX-042-230

28-1/4 (718)

29-1/4 (743)

13ACX-048-230

28-1/4 (718)

33-1/4 (845)

13ACX-060-230

28-1/4 (718)

29-1/4 (743)

STEP 1 -- SETTING THE UNIT (CONTIN­ UED) -- Unit Placement

WARNING

To prevent personal injury, as well as damage to panels, unit or structure, observe the following:

While installing or servicing this unit, carefully stow all removed panels so that the panels will not cause injury to personnel, objects or nearby structures. Also, take care to store panels where they will not be subject to damage (e.g., being bent or scratched).

While handling or stowing the panels, consider any weather conditions (especially wind) that may cause panels to be blown around and damaged.

NOTICE !

Roof Damage!

This system contains both refrigerant and oil. Some rubber roofing material may absorb oil, causing the rubber to degrade. Failure to follow this notice could result in damage to roof surface.

IMPORTANT !

This model is designed for use in check / expansion valve systems only. An indoor expansion valve ap­ proved for use with HFC-410A refrigerant must be or­ dered separately and installed prior to operating the system.

IMPORTANT !

Exhaust vents from dryers, water heaters and furnaces should be directed away from the outdoor unit. Pro­ longed exposure to exhaust gases and the chemicals contained within them may cause condensation to form on the steel cabinet and other metal components of the outdoor unit. This will diminish unit performance and longevity.

PLACEMENT

INSTALL UNIT AWAY

FROM WINDOWS

TWO 90_ ELBOWS INSTALLED IN LINE SET

WILL REDUCE LINE SET VIBRATION

FIGURE 3

SLAB MOUNTING

Install unit level or, if on a slope, maintain slope tolerance of 2 degrees (or 2 inches per 5 feet [50 mm per 1.5 m]) away from building structure.

BUILDING

DISCHARGE AIR

STRUCTURE

 

MOUNTING

SLAB

GROUND LEVEL

FIGURE 4

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Contents Minimum Clearance Between TWO Units Setting the Unit -- ClearancesGeneral Unit Dimensions Setting the Unit CONTIN­ UED -- Unit PlacementUnit Dimensions Inches MM PlacementRefrigerant Line SET Installing Horizontal Runs InstallationRefrigerant Line SET Installing Vertical Runs NEW Construction ShownRefrigerant Line SET Inches MM Liquid Line Filter Drier InstallationTypical Liquid Line Filter Drier Installation 2CONNECT Gauges and Equipment for Flushing Procedure Refrigerant Piping -- Brazing Procedures 1CUT and Debur6BRAZE Line SET Wrap Service ValvesFlow Nitrogen 7PREPARATION for Next StepSensing Bulb Installation Refrigerant Piping -- Installing Indoor Expansion ValveIndoor Expansion Valve Installation Equalizer Line InstallationLeak Test and Evacuation Leak TestEvacuation Open both manifold valves and start the vacuum pumpInstall Thermostat Electrical -- Circuit Sizing and Wire RoutingSize Circuit and Install Service Disconnect Switch 24VAC TransformerHigh Voltage / Ground Wires Field Control Wiring Electrical -- High Voltage and Field Control WiringRouting High VOLTAGE, Ground and Control Wiring Operating Manifold Gauge SET and Service ValvesTorque Requirements Checking and Adding System Refrigerant Homeowners InformationStart UP Checks 13ACX Start-Up and Performance ChecklistCooling Mode