50RTG03-07 WITH ECONOMIZER AND COMPLETE C CONTROLLER

 

 

Ground

 

 

 

 

 

 

BLK

BLK

L1

 

L1

 

 

 

 

L1

 

 

 

 

 

 

 

Power Supply

L2

 

BLK

BLK

L2

Refer to Data Plate

 

 

 

 

L2

 

 

 

 

 

 

Use copper conductors only.

L3

 

BLK

BLK

L3

 

 

L3

 

 

 

 

Disconnect

 

CC

 

 

Power

 

 

 

OR

BLK

 

 

 

Distribution

 

 

 

CB

 

(Optional)Block

 

 

 

WHT

 

 

115V / 1PH

GRN

 

 

 

BLK

 

Field

 

 

Wiring BLK

 

T1

 

 

BLK

 

 

GFI

 

T2

 

 

 

(Optional)

BLK

T3

 

 

 

 

Compressor

BLK

 

 

 

 

 

 

 

 

 

 

 

BLK

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BC

Blower Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ES

Logic Module

 

 

MAS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

-

(Damper Actuator)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRY

 

BLU

 

 

 

GRY

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

600 Ohm

 

 

 

 

150 Ohm

 

 

 

 

 

 

 

 

 

 

 

 

 

TR1

 

+

+

5

2

 

4

 

T1

P1

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TR

S O

S R

 

1

 

3

T

P

 

 

 

 

 

 

 

GRY

 

4

LAR

 

3

VIO

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

(208V)

 

 

 

 

 

 

 

 

 

 

 

YEL

 

2 BLK

 

 

 

 

 

 

 

VIO or

 

 

SEE

 

 

 

 

 

 

 

BRN

 

 

 

 

YEL

 

 

 

 

 

 

 

 

NOTE 7

 

BC

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK/RED

 

 

 

 

 

 

 

 

SEE

 

 

 

YEL

 

CC

 

 

 

 

(460V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLU

GRY

BRN

 

BRN

 

YEL

NOTE 7

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OAT

 

 

BRN

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

BR

BRG

CCG

 

CC

 

 

 

 

 

R

 

 

 

 

 

 

SEE

 

 

BLU

 

 

 

 

 

7 WHT

TAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAR

 

 

 

 

NOTE 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24V

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORG

 

Test Pins

 

 

 

 

 

 

 

 

ECR

BRN

 

 

 

 

 

 

 

CB

 

 

 

 

 

 

 

P2

 

 

 

 

 

 

 

 

 

230V

YEL

 

 

 

 

Compressor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

Relay

HP

RED

 

HP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1

 

SEE

 

 

 

 

 

 

LOC

 

 

 

 

 

 

 

 

 

 

Compressor

 

 

 

 

 

 

LOC

BRN

 

 

 

 

 

 

 

 

 

Y

 

Y

 

NOTE 4

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dip Switch

5

GRY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FP1

 

 

 

FP1

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

 

 

1 PM

FP1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRY

 

 

 

 

RVS

 

 

 

 

 

 

 

 

Cooling

 

 

 

 

 

 

2 Not Used

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FP2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

 

 

Off

 

On

7

VIO

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan

 

 

 

 

 

 

FP2

 

 

 

 

 

 

 

 

G

 

G

 

 

 

 

 

 

 

FP2

VIO

 

BRN

 

ORG

 

 

 

 

 

 

24 VAC

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

R

 

R

 

 

 

 

 

 

 

9

BRN

 

 

 

 

ECR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status

 

 

 

 

 

 

 

 

 

 

 

 

Common

 

 

 

 

G

RV

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

ORG

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

LED

10

 

 

 

 

 

 

 

 

 

 

 

 

 

Alarm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

JW1

 

 

 

 

 

Not Used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AL1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Typical T-stat

AL2

 

 

 

 

 

 

CO 12

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 6

 

Microprocessor

P3

 

 

 

 

 

 

 

 

 

 

 

 

 

Alarm

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

Relay

 

 

 

Control Logic

24V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EH2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTES:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Compressor and blower motor thermally protected

 

 

 

 

 

LEGEND

 

 

 

 

 

 

 

internally.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

All wiring to the unit must comply with NEC and

 

 

 

 

 

 

 

 

PM

Performance Monitor

 

 

local codes.

 

 

 

 

 

 

 

 

AL

Alarm Relay Contacts

 

 

 

 

3.

 

208/230 v

transformers

will be connected

for

BC

Blower Mtr Contactor

 

 

 

 

P1

Field Wiring Terminal Block

 

 

208 v operations. For 230 v operations, discon-

CB

Circuit Breaker

 

 

 

 

RVS

Reversing Valve Solenoid

 

 

nect Red lead at L1, and attach Orange lead to

CC

Compressor Contactor

 

 

 

 

 

 

Relay Contactor Coil

 

 

L1. Close open end of Red Lead with insulating

ECR

Economizer Relay

 

 

 

 

 

 

 

 

tape.

 

 

 

 

 

 

 

 

 

EH1

Auxiliary Heat Stage 1

 

 

 

 

 

 

 

 

4.

FP1

jumper provides freeze protection for

EH2

Auxiliary Heat Stage 2

 

 

 

 

 

 

Solenoid Coil

 

 

WATER. When using ANTI-FREEZE solutions, cut

ES

Enthalpy Sensor

 

 

 

 

 

 

 

 

 

 

FP1 jumper.

 

 

 

 

 

 

 

 

FP1

Sensor, Water Coil Freeze Protection

 

 

 

 

Thermistor

 

5.

 

Typical thermostat wiring shown. Refer to thermo-

FP2

Sensor, Air Coil Freeze Protection

 

 

 

 

 

 

 

stat Installation Instructions for wiring to the unit.

 

 

 

 

 

 

 

 

HP

High Pressure Switch

 

 

 

 

 

 

Ground

 

6.

24 v alarm signal shown. For dry alarm contact,

JW1

Jumper, Alarm Mode

 

 

 

 

 

 

 

 

 

cut JW1 jumper and dry contact will be available

LAR

Low Ambient Relay

 

 

 

 

 

 

 

 

 

 

between AL1 and AL2.

 

 

 

 

 

 

LOC

Loss-of-Charge Pressure Switch

 

 

 

 

Field Line Voltage Wiring

7.

 

Transformer

secondary

ground

via

Complete C

MAS — Mixed Air Sensor

 

 

 

 

 

 

Field Low Voltage Wiring

 

 

board

standoffs

and

screws

to

control

 

box.

NEC

National Electrical Code

 

 

 

 

 

 

 

(Ground available from top two standoffs as

 

 

 

 

 

 

 

 

 

OAT

Outside Air Thermostat

 

 

 

 

 

 

Printed Circuit Trace

 

 

shown.)

 

 

 

 

 

 

 

 

Fig. 4 — Typical Aquazone™ Complete C Control Wiring

8

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Carrier specifications 50RTG03-07 with Economizer and Complete C Controller

50RTG specifications

The Carrier 50RTG represents a significant advancement in the field of rooftop air conditioning systems, combining performance, efficiency, and reliability for commercial applications. Designed to meet the rigorous demands of today’s buildings, the 50RTG series is ideally suited for a variety of environments, including retail, office spaces, and industrial facilities.

One of the standout features of the Carrier 50RTG is its energy efficiency. Utilizing the latest in compressor technology, these units achieve high Seasonal Energy Efficiency Ratios (SEER) and Energy Efficiency Ratios (EER), which translates to lower energy costs for users. This efficiency is further enhanced by the incorporation of environmentally friendly refrigerants that comply with current regulations, reducing the overall carbon footprint of the unit.

Another notable characteristic of the 50RTG series is its modular design. The unit can be tailored to specific requirements, making it versatile for different installation scenarios. This modularity not only simplifies maintenance and repair operations but also allows for easy upgrades as technologies evolve or as space demands change.

The advanced control system in the 50RTG is another key technology that sets it apart from competing products. Intuitive user interfaces and smart controls enable precise temperature regulation and improved energy management. These controls often include features such as variable speed fans and integrated economizers, which optimize the system's performance in real-time based on current load requirements.

Durability is also a hallmark of the Carrier 50RTG. Constructed with robust materials and designed to withstand harsh weather conditions, these units provide dependable operation year-round. The corrosion-resistant finish and weather-tight construction ensure that the systems maintain their performance levels and aesthetic appeal over time.

Additionally, the 50RTG series is designed with a focus on low noise operation. With quieter components and advanced noise control technology, these units are ideal for noise-sensitive environments, ensuring that occupants can work, live, or shop in comfort without disruptive background noise.

In summary, the Carrier 50RTG series exemplifies the perfect combination of energy efficiency, advanced technology, customization potential, durability, and low noise operation, making it a top choice for commercial heating and cooling needs. Its innovative features and reliable performance solidify its status as a leader in rooftop HVAC solutions, catering to the evolving requirements of modern buildings.