LG Electronics 395CAV installation instructions Electrostatic Discharge ESD Precautions, Ð1Ð

Page 1

installation instructions

395CAV

and operating instructions

Series G

UPFLOW GAS-FIRED

INDUCED-COMBUSTION FURNACES

Cancels: II 395C-40-9

II 395C-40-10

 

1-96

NOTE: Read the entire instruction manual before starting the

installation.

 

This symbol indicates a change since the last issue.

 

Index

Page

SAFETY CONSIDERATIONS

1

Clearances From Combustible Materials

1

Dimensional Drawing

2

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

 

PROCEDURE

2-3

INTRODUCTION

3

LOCATION

3

General

3

Location Relative to Cooling Equipment

3

Hazardous Locations

3

AIR FOR COMBUSTION AND VENTILATION

3-5

Unconfined Space

4

Confined Space

4-5

FILTER ARRANGEMENT

5-6

LEVELING LEGS (IF REQUIRED)

5-6

GAS PIPING

6-7

ELECTRICAL CONNECTIONS

7

115-v Wiring

7

24-v Wiring

7

Accessories

7

VENTING

7

START-UP, ADJUSTMENT, AND SAFETY CHECK

7-14

General

7-8

Sequence Of Operation

8-11

Heating Mode

9

Cooling Mode

9-11

Continuous Blower Mode

11

Heat Pump Mode

11

Start-Up Procedures

11

Adjustments

11-14

Set Gas Input Rate

11-13

Set Temperature Rise

13

Set Thermostat Heat Anticipator

14

Check Safety Controls

14

Checklist

14

SAFETY CONSIDERATIONS

 

Installing and servicing heating equipment can be hazardous due to

gas and electrical components. Only trained and qualified person-

nel should install, repair, or service heating equipment.

 

Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached to or shipped with the unit and other safety precautions that may apply.

Follow all safety codes. In the United States, follow all safety codes including the National Fuel Gas Code (NFGC) NFPA No. 54-1992/ANSI Z223.1-1992. In Canada, refer to the current edition of the National Standard of Canada CAN/CGA-B149.1-

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CANADIAN GAS ASSOCIATION

 

 

A P P R O V E D

 

 

R

and .2-M95 Natural Gas and Propane Installation Codes (NSC- NGPIC). Wear safety glasses and work gloves. Have fire extin- guisher available during start-up and adjustment procedures and service calls.

Recognize safety information. This is the safety-alert symbol . When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAU- TION. These words are used with the safety-alert symbol. DAN- GER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage.

These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residen- tial construction practices. We require these instructions as a minimum for a safe installation.

TABLE 1ÐMINIMUM CLEARANCES FROM

COMBUSTIBLE MATERIALS (IN.)

 

UNIT SIZE

045 AND 070

091-155

Sides

Single-Wall Vent

1

0

 

Type B-1 Double-Wall Vent

0

0

Back

 

0

0

Plenum Top

 

1

1

Vent

Single-Wall Vent

6

6

 

Type B-1 Double-Wall Vent

1

1

Front

Single-Wall Vent

6

6

 

Type B-1 Double-Wall Vent

3

3

 

Service

30

30

NOTES:

1.Provide 30-in. front clearance for servicing. An open door in front of the unit can meet this requirement.

2.A minimum clearance of 3 in. must be provided in front of the unit for

combustion air and proper operation.

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Contents Safety Considerations Electrostatic Discharge ESD PrecautionsÐ1Ð Ðminimum Clearances from Combustible MaterialsElectrostatic Discharge ESD Precautions Procedure ÐdimensionsÐ2Ð Unit Size Vent Conn SHIP. WT LBLocation IntroductionII. AIR for Combustion and Ventilation Confined Space Unconfined SpaceÐ4Ð 395CAV Furnace Minimum SQ FT with Input Btuh 2 FT CeilingIII. Filter Arrangement Ð5ÐIV. Leveling Legs if Required GAS Piping Ðfilter InformationÐ6Ð Ðmaximum Capacity of PipeAccessories WiringVIII. START-UP, ADJUSTMENT, and Safety Check VI. Electrical ConnectionsÐ8Ð Ðelectrical DataSequence of Operation Ð9Ð ÐControl BoardPCB → ÐUnit Wiring DiagramAdjustments Start-up ProceduresGAS Specific Gravity of Natural GAS Heat Value ExampleBTU/CU FT → ÐRedundant Automatic Gas Control Valve Ðgas Rate CU FT/HRÐcanadian Orifice Size GAS SEA Level High AltitudeÐspeed Selector ChecklistColor Speed Factory Attached to Service Training Ð16Ð