035-14832-003-A-0204

 

TABLE OF CONTENTS

 

General

1

MAINTENANCE & TROUBLESHOOTING

Inspection

1

Normal Maintenance

17

Reference

1

Cleaning Flue Passages and Heating Elements

17

Approvals

1

Troubleshooting

18 & 19

Nomenclature

2

 

 

INSTALLATION

 

Limitations

3

Location

3

Rigging and Handling

3

Clearances

3

Ductwork

3

Filters

4

Condensate Drain

4

Service Access

4

Thermostat

4

Power and Control Wiring

4

Blower Speed Selection

4

Compressors

4

Combustion Discharge

4

Disconnect Switch Bracket For Optional Belt-Drive

5

Gas Piping

5

Gas Connection

6

L.P. Units, Tanks and Piping

6

Low NOx Application

6

Vent and Combustion Air Hoods

7

Optional Economizer Rain Hood

7

OPERATION

 

Cooling System

13

Preliminary Operation Cooling

13

Cooling Sequence of Operation

13

Safety Controls (Cooling)

13

Heating Sequence of Operation

13

Safety Controls (Heating)

14

Heat Anticipator Setpoints

14

Pre-Start Check List

14

START-UP

 

Operating Instructions

14

Post-Start Check List (Gas)

14

Manifold Gas Pressure Adjustment

14

Pilot Checkout

15

Burner Instructions

15

Burner Air Shutter Adjustment

15

Supply Air Blower and Temperature Rise Adj

15

Supply Air Blower and Temperature Rise Adj

15&16

Checking Gas Input

16

Secure Owner's Approval

16

 

TABLES

 

No.

Description

Page

1

Unit Application Data

3

2

Gas Heat Application Data

4

3

Pipe Sizing

5

4

Physical Data

8

5

Supply Air Perf. Direct-Drive Units

8

6

Supply Air Perf.3 & 4Ton Belt-Drive Units ..

9

7

Supply Air Perf.5 Ton Belt-Drive Units

10

8

Static Resistances

11

9

Motor & Drive Data

11

10

Electrical Data (Direct-Drive Units)

11

11

Electrical Data (Belt-Drive Units)

11

12

Limit Control Setting

14

13

Belt-Drive Supply Air Motor Pulley Adj

15

14

Gas Rate - Cubic Feet Per Hour

16

 

FIGURES

 

No.

Description

Page

1

Center of Gravity

3

2

Recommended Drain Piping

4

3

Typical Field Wiring

5

4

External Supply Connection

6

5

Bottom Supply Connection

6

6

Vent and Combustion Air Hoods

7

7

Economizer Rain Hood Assembly

7

8

Enthalpy Setpoint Adjustment

8

9

Dimensions and Clearances

12

10

Gas Valve Piping

13

11

Typical Gas Valve

14

12

Proper Flame Adjustment

15

13

Typical Flame Appearance

15

14

Belt Adjustment

15

15

Press. Drop versus Supply Air CFM

16

D

PRODUCT CATEGORY

D = Single Package Air Conditioner (Air Cooled)

PRODUCT GENERATION

2 = 2nd Generation

3 = 3rd Generation

PRODUCT IDENTIFIER

EG = High Efficiency Gas/Electric

2

PRODUCT NOMENCLATURE

2 E G 0 3 6 N 0 4 0 2 5

 

 

 

FACTORY INSTALLED HEAT

NOMINAL COOLING

 

 

 

CAPACITY

 

 

 

 

 

N = Natural Gas

 

 

 

036 = 3 Ton

 

 

 

 

 

048 = 4 Ton

 

 

 

060 = 5 Ton

 

 

 

VOLTAGE CODE

06 = 208/230-1-60

25 = 208/230-3-60

46 = 460-3-60

58 = 575-3-60

NOMINAL GAS HEATING

OUTPUT CAPACITY

040 = 40 MBH

060 = 60 MBH

079 = 79 MBH

099 = 99 MBH

Unitary Products Group

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York D2EG 048, D3EG 036, D2EG 060 installation instructions Table of Contents