530.18-N8Y

TABLE OF CONTENTS

General

1

Inspection

1

Reference

1

Approvals

1

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

Scroll 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 & 8

OPERATION

 

Cooling System

15

Cooling Sequence of Operation

15

Safety Controls (Cooling)

15

Heating Sequence of Operation

15

Safety Controls (Heating)

15

Heat Anticipator Setpoints

16

Pre-Start Check List

16

START-UP

 

Operating Instructions

16

Post-Start Check List (Gas)

16

Manifold Gas Pressure Adjustment

16

Pilot Checkout

17

Burner Instructions

17

Burner Air Shutter Adjustment

17

Supply Air Blower and Temperature Rise Adjustment

17

Checking Gas Input

18

Secure Owner’s Approval

18

MAINTENANCE & TROUBLE SHOOTING

Normal Maintenance

19

Cleaning Flue Passages and Heating Elements

19

Troubleshooting

19 & 20

 

TABLES

 

 

No.

Description

Page

1

Unit Application Data

3

2

Gas Heat Application Data

4

3

Pipe Sizing

5

4

Static Resistances

8

5

Physical Data

9

6

Supply Air Blower Perf. 3 - 6 Ton Direct-Drive

9

7

Motor & Drive Data-Belt-Drive Blower

9

8

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

10

9

Supply Air Blower Perf. 5 & 6 Ton Belt-Drive

11

10

Electrical Data Direct-Drive

12

11

Electrical Data Belt-Drive

12

12

Superheat, 036

12

13

Superheat, 048

13

14

Superheat, 060

13

15

Superheat, 072

13

16

Limit Control Setting

16

17

Belt Drive Supply Air Motor Pulley Adj

17

18

Gas Rate - Cubic Feet Per Hour

18

 

FIGURES

 

 

No.

Description

Page

1

Recommended Drain Piping

4

2

Typical Field Wiring

5

3

External Supply Connection

6

4

Bottom Supply Connection

6

5

Vent and Combustion Air Hoods

7

6

Economizer Rain Hood Assembly

7

7

Enthalpy Setpoint Adjustment

8

8

Center of Gravity

9

9

Dimensions and Clearances

14

10

Gas Valve Piping

15

11

Gas Valves

16

12

Proper Flame Adjustment

17

13

Typical Flame Appearance

17

14

Belt Adjustment

17

15

Press. Drop versus Supply Air CFM

18

PRODUCT NOMENCLATURE

 

 

 

 

 

 

 

 

D

 

 

7

 

C

G

 

0

3

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRODUCT CATEGORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D = Single Package Air Conditioner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Air Cooled)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRODUCT GENERATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 = 2nd Generation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7 = 7th Generation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRODUCT IDENTIFIER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CG = Gas/Electric

 

 

 

 

 

 

 

NOMINAL COOLING

 

 

 

 

 

 

 

 

 

 

 

CAPACITY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

036 = 3 Ton

 

 

 

 

 

 

 

 

 

 

 

 

 

 

048 = 4 Ton

 

 

 

 

 

 

 

 

 

 

 

 

 

 

060 = 5 Ton

 

 

 

 

 

 

 

 

 

 

 

 

 

 

072 = 6 Ton

 

 

N

 

0

4

0

 

2

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FACTORY INSTALLED

HEAT

N = Gas Heat Installed

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

2

Unitary Products Group

Page 2
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York D7CG 060, D7CG 036, D7CG 048, D2CG 072 installation instructions Table of Contents

D2CG 072, D7CG 060, D7CG 048, D7CG 036 specifications

The York D7CG 060, D7CG 048, D7CG 036, and D2CG 072 are advanced rooftop unit models designed for enhanced energy efficiency, reliability, and ease of use in commercial HVAC applications. These models are known for their robust features and technologies aimed at providing optimal indoor climate control.

The D7CG series, including the 060, 048, and 036 models, is built around a highly efficient design. They incorporate scroll compressors that operate quietly, contributing to a comfortable environment. The units are designed for high-ambient performance, enabling them to function efficiently even in extreme temperature conditions. The D7CG series also features an intelligent control system that allows for seamless integration with building management systems, optimizing energy usage and enhancing overall system performance.

One of the standout features of the D7CG models is their advanced heat exchanger technology, which improves heat transfer and overall efficiency. The coil design allows for superior airflow and enhanced temperature regulation, ensuring consistent comfort levels throughout the space. With variable-speed fans, these units adjust airflow dynamically, providing further energy savings and tailored climate control.

The D2CG 072 model, on the other hand, accentuates versatility and robustness. This unit also boasts a high-efficiency compressor and features a unique multi-stage heating and cooling process. Its modular design allows for easy installation and maintenance. The D2CG 072 is engineered for flexible configurations, accommodating various building sizes and layouts without compromising performance.

All four models are equipped with user-friendly digital controls that offer precise adjustments and monitoring capabilities. This feature allows building operators to quickly respond to changing conditions, ensuring optimal comfort for occupants while maintaining energy efficiency. Furthermore, they adhere to stringent environmental standards, incorporating low-GWP refrigerants that minimize their ecological footprint.

In summary, the York D7CG 060, D7CG 048, D7CG 036, and D2CG 072 models represent cutting-edge technology and innovative design in the commercial HVAC sector. Their high efficiency, advanced features, and user-centric controls make them suitable for a wide range of applications, ensuring reliable performance and comfort in diverse environments.