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10/08

506109−01

*2P1008*

*P506109-01*

Page 1

2008 Lennox Industries Inc.

Dallas, Texas, USA

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

WARNING

Improper installation, adjustment, alteration,
service or maintenance can cause personal injury,
loss of life, or damage to property.

Installation and service must be performed by a
licensed professional installer (or equivalent) or a
service agency.

CAUTION

Physical contact with metal edges and corners
while applying excessive force or rapid motion can
result in personal injury. Be aware of, and use
caution when working near these areas during
installation or while servicing this equipment.

IMPORTANT

The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFCs, HCFCs and HFCs) as
of July 1, 1992. Approved methods of recovery,
recycling or reclaiming must be followed. Fines
and/or incarceration may be levied for
noncompliance.

IMPORTANT

This unit must be matched with an indoor coil as
specified in 

Lennox AC13

 

Engineering Handbook

.

INSTALLATION
INSTRUCTIONS

Elite

®

 Series AC13

 

Units

AIR CONDITIONER

506109−01 
10/08
Supersedes 07/08

Table of Contents

Shipping and Packing List

1

. . . . . . . . . . . . . . . . . . . . . . 

AC13 Air Conditioner Units

1

. . . . . . . . . . . . . . . . . . . . . 

Unit Dimensions 

2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

General Information

3

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Recovering Refrigerant from Existing System

3

. . . . . 

Removing Existing Outdoor Unit

5

. . . . . . . . . . . . . . . . . 

Positioning New Outdoor Unit

6

. . . . . . . . . . . . . . . . . . . 

Removing and Installing Panels

7

. . . . . . . . . . . . . . . . . 

New or Replacement Line Set

8

. . . . . . . . . . . . . . . . . . . 

Brazing Connections

10

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Removing Indoor Unit Metering Device 

11

. . . . . . . . . . . 

Installing New Indoor Unit Metering Device

12

. . . . . . . . 

Testing for Leaks

14

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Evacuating the System

14

. . . . . . . . . . . . . . . . . . . . . . . . . 

Servicing Unit Delivered Void of Charge

15

. . . . . . . . . . . 

Electrical Connection

15

. . . . . . . . . . . . . . . . . . . . . . . . . . 

Start−Up and Charging Procedures

16

. . . . . . . . . . . . . . . 

System Operation

21

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Maintenance

21

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Homeowner Information

22

. . . . . . . . . . . . . . . . . . . . . . . . 

Optional Accessories

23

. . . . . . . . . . . . . . . . . . . . . . . . . . 

Start−Up and Performance Checklist

24

. . . . . . . . . . . . . 

Shipping and Packing List

Check the unit for shipping damage and listed times below
are intact. If damaged, or if parts are missing, immediately
contact the last shipping carrier.

1  Assembled outdoor unit

1  Refrigerant flow control kit (Fixed Orifice)

AC13 Air Conditioner Units

The AC13 Air Conditioners, which will also be referred to in
this instruction as the outdoor unit, uses HCFC−22
refrigerant. This outdoor unit must be installed with a
matching indoor unit and line set as outlined in the 

Lennox

AC13

 

Engineering Handbook

.

This outdoor unit is designed for use in systems that use
one of the following refrigerant metering devices:

Thermal expansion valve (TXV)

Fixed orifice

Litho U.S.A.

Содержание AC13 -018

Страница 1: ...List 1 AC13 Air Conditioner Units 1 Unit Dimensions 2 General Information 3 Recovering Refrigerant from Existing System 3 Removing Existing Outdoor Unit 5 Positioning New Outdoor Unit 6 Removing and I...

Страница 2: ...IT SUPPORT FEET AC13 BASE WITH ELONGATED LEGS H SUCTION LINE CONNECTION LIQUID LINE CONNECTION TOP VIEW RUN CAPACITOR CONTACTOR DISCHARGE LINE LIQUID LINE CONNECTIONS PARTS ARRANGEMENT AC13 A B C D E...

Страница 3: ...Rockwell Harness Scale minimum Fully insert the wrench into the valve stem recess Service valve stems are factory torqued from 9 ft lbs for small valves to 25 ft lbs for large valves to prevent refrig...

Страница 4: ...ppropriately sized wrench to turn an additional 1 12 turn clockwise as illustrated in figure 1 Operating Ball Type Service Valve To Access Ball Type Service Port A service port cap protects the servic...

Страница 5: ...system charge recovery into the outdoor unit Outdoor unit s high or low pressure switches if applicable when tripped can cycled the compressor OFF Compressor can stop pumping due to tripped internal...

Страница 6: ...roperty Install the unit as far as possible from the property line When possible do not install the unit directly outside a window Glass has a very high level of sound transmission For proper placemen...

Страница 7: ...unit at a minimum of four inches above the surface of the roof Care must be taken to ensure weight of unit is properly distributed over roof joists and rafters Either redwood or steel supports are re...

Страница 8: ...table an uneven surface ONE BRACKET PER SIDE MIN FOR EXTRA STABILITY 2 BRACKETS PER SIDE 2 FROM EACH CORNER CONCRETE SLAB USE PLASTIC PLASTIC ANCHOR HOLE DRILL 1 4 PLASTIC SLAB NO PLASTIC ANCHOR HOLE...

Страница 9: ...ed to meter flow is 1 4 in diameter and copper INSTALLING LINE SET Line Set Isolation This reference illustrates procedures which ensure proper refrigerant line set isolation Installation of line set...

Страница 10: ...to braze the line set to the new air conditioner unit Figure 18 is provided as a general guide for preparing to braze the line set to the air conditioner unit CAUTION Brazing alloys and flux contain m...

Страница 11: ...r unit s service valves Removing Indoor Unit Metering Device Remove the existing HCFC 22 refrigerant flow control orifice or thermal expansion valve from the indoor coil REPLACEMENT PARTS If replaceme...

Страница 12: ...AC13 ENGINEERING HANDBOOK See the AC13 Engineering Handbook for approved indoor outdoor match ups applicable fixed orifice and TXV kits and application information Figures 23 and 24 illustrates the ty...

Страница 13: ...e provided Teflon rings around the stubbed end of the TXV and lightly lubricate the connector threads and expose surface of the Teflon ring with refrigerant oil 3 Attach the stubbed end of the kit val...

Страница 14: ...nly 3 Open the high pressure side of the manifold to allow HCFC 22 into the line set and indoor unit Weigh in a trace amount of HCFC 22 A trace amount is a maximum of two ounces 57 g refrigerant or th...

Страница 15: ...er of HCFC 22 refrigerant Open the manifold gauge valve 1 to 2 psig in order to release the vacuum in the line set and indoor unit 10 Close manifold gauge valves and shut off the HCFC 22 cylinder and...

Страница 16: ...strain relief and to maintain separation of field installed low and high voltage circuits Start Up and Charging Procedures IMPORTANT If unit is equipped with a crankcase heater it should be energized...

Страница 17: ...djust the fan speed See indoor unit instructions to in crease decrease fan speed Changing air flow affects all temperatures recheck temperatures to confirm that the temperature drop and DT are within...

Страница 18: ...c sheet to restrict the airflow through the outdoor coil to achieve pressures from 200 250 psig 1379 1724 kPa Higher pressures are needed to check charge Block equal sections of air intake panels and...

Страница 19: ...refrigerant If refrigerant is added or removed verify charge using the Subcooling Method MORE or LESS 018 024 030 036 042 048 060 TEMP 6 3 3 6 3 3 8 4 4 12 6 7 5 2 8 6 3 3 7 3 8 Temperature of air en...

Страница 20: ...erature VAP _________ 10 Subtract to determine superheat SH VAP _____ SAT ______ SH ______ 11 Record the wet bulb temperature air entering indoor coil WB _______ 12 Record outdoor ambient temperature...

Страница 21: ...73 80 27 175 77 186 77 190 73 201 79 195 78 185 76 193 76 85 29 189 79 200 79 205 75 215 81 209 80 198 77 208 78 90 32 203 81 216 81 221 77 231 82 224 81 213 79 224 80 95 35 218 82 232 82 237 79 247 8...

Страница 22: ...cal power to the unit at the discon nect switch before performing any maintenance The unit may have multiple power supplies 3 Reusable Filter Many indoor units are equipped with reusable foam filters...

Страница 23: ...e to cooling mode to maintain predetermined comfort settings Temperature Indicator The temperature indicator displays the actual room temperature PROGRAMMABLE THERMOSTATS Your Lennox system may be con...

Страница 24: ...n Maximum Fuse or Circuit Breaker Electrical Connections Tight Indoor Filter clean Supply Voltage Unit Off Indoor Blower RPM S P Drop Over Indoor Dry Outdoor Coil Entering Air Temp Discharge Pressure...

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