user manual

ManualsBrandsLennox International Inc. ManualsAir ConditionerAir Conditioner 15CHAX Series

01/08

*2P0108*

Page 1

505,201M

*P505201M*

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

 2006 Lennox Industries Inc.

Dallas, Texas, USA

Table of Contents

Shipping & Packing List 1. . . . . . . . . . . . . . . . . . . . . . . . .

Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Arrangement 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Requirements 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Location Selection 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rigging & Setting Unit 4. . . . . . . . . . . . . . . . . . . . . . . . . .

Clearances 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Existing Common Vent Systems 5. . . . . . . . . . . . . . . . .

Condensate Drain 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filters 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply & Return Connections 6. . . . . . . . . . . . . . . . . . . .

Compressors 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Blower Control Board 9. . . . . . . . . . . . . . . . . . . . . . . . . . .

System Operation Monitor 11. . . . . . . . . . . . . . . . . . . . . .

Unit Start−Up and Operation 13. . . . . . . . . . . . . . . . . . . .

Condenser Fan Clearances 14. . . . . . . . . . . . . . . . . . . . .

Maintenance 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INSTALLATION

INSTRUCTIONS

15CHAX SERIES UNITS

PACKAGED ELECTRIC UNIT (2−5 TONS)

505,201M (38152A082)

01/08

Supersedes 05/06

Shipping & Packing List

1 − Assembled packaged electric unit

As soon as the unit is received, it should be inspected for

possible damage during transit. If you find any damage, im-

mediately contact the last carrier.

WARNING

Improper installation, adjustment, alteration, service

or maintenance can cause property damage, person-

al injury or loss of life. Installation and service must

be performed by a licensed professional installer (or

equivalent) or service agency.

WARNING

If this unit is to be installed in a mobile or manufac-

tured home application, the duct system must be

sized to achieve static pressures within the

manufacturer’s guidelines. All other installation

guidelines must also be followed. Failure to do so

may result in equipment damage, personal injury

and improper unit performance.

CAUTION

Danger of sharp metallic edges. Can cause injury.

Take care when servicing unit to avoid accidental

contact with sharp edges.

WARNING

Electric shock hazard. Can cause injury

or death. Before attempting to perform

any service or maintenance, turn the

electrical power to unit OFF at

disconnect switch(es). Unit may have

multiple power supplies.

Litho U.S.A.

Summary of content (14 pages)

PAGE 1
INSTALLATION INSTRUCTIONS 2006 Lennox Industries Inc. Dallas, Texas, USA 15CHAX SERIES UNITS PACKAGED ELECTRIC UNIT (2−5 TONS) 505,201M (38152A082) 01/08 Supersedes 05/06 Litho U.S.A. Shipping & Packing List 1 − Assembled packaged electric unit As soon as the unit is received, it should be inspected for possible damage during transit. If you find any damage, immediately contact the last carrier.
PAGE 2
15CHAX Unit Dimensions − inches (mm) F G 2−1/2 (64) AA 2−1/2 (64) 2−3/4 (70) D E E DOWNFLOW RETURN AIR OPENING BB DOWN−FLOW SUPPLY AIR OPENING Model Number D DD FF CC TOP VIEW B AA lbs. 75 75 83 110 114 119 15CHAX−24 15CHAX−30 15CHAX−36 15XHAX−42 15CHAX−48 15CHAX−60 C EE Center Of Gravity EE FF in. in. 16 29 16 29 16 30 21 33 21 33.5 21 33.5 Corner Weights BB lbs. 94 94 97 138 139 145 CC lbs.
PAGE 3
Parts Arrangement A pre−filter must be installed at the entry to the return air General duct. These installation instructions are intended as a general guide only, for use by an experienced, licensed contractor (or equivalent). The return air duct must be provided and sealed to the unit. Return air temperature range between 55°F (13°C) The 15CHAX units are single−package electric units designed for outdoor installation on a rooftop or a slab.
PAGE 4
For installation on combustible material. Accessory Lift Kit WARNING Product contains fiberglass wool. Lifting Bracket Accessory Disturbing the insulation in this product during installation, maintenance, or repair will expose you to fiberglass wool dust. Breathing this may cause lung cancer. (Fiberglass wool is known to the State of California to cause cancer.) Sheet Metal Screw Fiberglass wool may also cause respiratory, skin, and eye irritation.
PAGE 5
ate Category 1 Natural Gas and Propane appliances venting sizing tables in the current standards of the CSA B149 Natural Gas and Propane Installation Codes in Canada.) Existing Common Vent Systems The 15CHAX packaged cooling units with auxiliary electric heat may replace an existing furnace which is being removed from a venting system commonly run with separate gas appliances. In this case, the existing vent system is likely to be too large to properly vent the remaining attached appliances.
PAGE 6
Filters Removing Supply and Return Air Opening Covers Filters are not factory−supplied with the unit; however, optional internally installed filter kits are available. Filter kit 92M54 is used with 2, 2−1/2 and 3−ton units. Filter kit 92M55 is used with 3−1/2, 4 and 5−ton units. The filter kits accommodate the use of 1", 2" or 4" filters. If the optional filter kit is not used, a filter must be field−installed. 2 1 1. Remove screw and lift. 2. Slide cover to free back pin.
PAGE 7
Unit must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electric Code, ANSI/NFPA No. 70 (latest edition) or CSA C22.2 Part 1 (latest edition). Power supply to the unit must comply with all applicable codes and NEC or CEC. A fused disconnect switch should be field provided for the unit. The switch must be separate from all other circuits.
PAGE 8
Figure 7 Page 8 Typical Wiring Diagram 15CHAX Series Packaged Electric Units
PAGE 9
Read through the jumper settings section before adjusting the jumper to obtain the appropriate blower speed. Blower Control Board (A54) ! WARNING Electric shock hazard. Can cause injury or death. Before attempting to perform any service or maintenance, turn the electrical power to unit OFF at disconnect switch(es). Unit may have multiple power supplies. 15CHAX units are equipped with a variable speed motor that is capable of maintaining a specified CFM throughout the external static range.
PAGE 10
COOL CONTINUOUS FAN The COOL jumper is used to determine the CFM during cooling operation. This jumper selection is activated for cooling when Y1 is energized. The blower motor runs at 80 percent of the selected air flow for the first 7−1/2 minutes of each cooling demand. This feature allows for greater humidity removal and saves energy. In the cooling mode, the blower control board delays blower operation for 5 seconds after the compressor starts.
PAGE 11
System Operation Monitor (LSOM) The system operation monitor (A132) detects the most common fault conditions in the air conditioning system. When an abnormal condition is detected, the module communicates the specific condition through its ALERT and TRIP lights. The module is capable of detecting both mechanical and electrical system problems. See figure 9 for the system operation monitor. System Operation Monitor (A132) POWER LED DATA OUTPUT Y DATA OUTPUT CONNECTOR .
PAGE 12
Table 5 System Operation Monitor LED Troubleshooting Codes Status LED Condition Status LED Description Status LED Troubleshooting Information Green Power" LED ON Module has power 24VAC control power is present at the module terminal.
PAGE 13
Unit Start−Up and Operation Each 15CHAX packaged cooling unit is factory−charged with R−410A refrigerant. The compressor is hermetically sealed, internally sprung and base−mounted with rubber−insulated hold−down bolts. Pre−Start Check List: 1 − Make sure refrigerant lines do not rub against the cabinet or each other. 2 − Inspect all electrical wiring, both factory− and field− installed, for loose connections. 3 − Check voltage at the disconnect switch.
PAGE 14
Motors Condenser Fan Clearances The top of the condenser fan should be 1−1/2 inches from the bottom of the top grille. This dimension should be checked and the fan should be adjusted accordingly any time servicing of the outdoor fan system is required. Maintenance At the start of each cooling season, this equipment should be serviced by a licensed professional technician (or equivalent). Periodic inspection and maintenance normally consists of changing or cleaning filters. Filters Not supplied.