Table 9 - Keypad Directory

STATUS

 

 

 

 

 

 

KEYPAD ENTRY

 

DISPLAY

1

 

 

 

 

COMMENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer to Automatic Display Operation on page 28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 ALARMS

I

 

 

 

X ALARMS

 

 

Number of Tripped Alarms

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

 

 

 

 

Displays Tripped Alarms

 

 

 

 

 

 

 

 

 

ALARM X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 MODES

 

 

 

 

 

X MODES

 

 

Number of Modes in Effect

 

 

 

 

 

 

 

 

 

 

 

 

MODE X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODE X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Displays Mode in Effect

 

 

 

 

 

 

 

 

 

MODE X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODE X

 

>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 STAGE

 

 

 

 

 

STAGE

 

 

Capacity

Staging

Information

 

 

 

 

 

 

 

 

 

 

 

 

S T A G E X

 

 

Number of Requested Stages

 

 

 

 

 

 

 

 

 

 

 

 

CAPT X

 

 

Percent

of Total

Capacity

 

 

 

 

 

 

 

 

 

 

 

 

CAPA X

 

 

Percent Circuit A Capacity

6;,;

 

 

 

 

 

 

 

 

 

CAP0 X

 

 

Percent Circuit 6 Capacity

 

 

 

 

 

 

 

 

 

LMT X*

 

 

Demand

Limit

Set Point

 

 

 

 

 

 

 

 

 

LOAD X*

 

 

Load

 

Limit Set

Point

 

 

 

 

 

 

 

 

 

 

 

 

 

CIRA X

 

 

Circuit A Compressor Relay Status

 

 

 

 

 

 

 

 

 

CIRB X

 

 

Circuit B Compressor Relay Status

 

 

 

 

 

 

 

 

 

S M Z

X

 

 

Load/Unload Factor for Compressors

 

 

 

 

 

 

 

 

 

 

 

 

 

Factor = 1 Unloader Factor = 0 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

SET POINT

 

 

 

 

 

SET

POINT

 

 

Fluid

 

Set Point

 

Information

 

 

 

 

 

 

 

 

 

 

 

 

SP x

 

 

Set

Point

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M S P

X

 

 

Modified Set Point = Set Point

+ Reset

 

 

 

 

 

 

 

 

 

TWX

 

 

Cooler

Leaving

 

Fluid

Temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEMPS

 

 

Temperature

Information

 

 

 

6

TEMPERATURE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EWTX

 

 

Cooler

Entering

Fluid

Temperature

 

 

 

 

 

 

 

 

 

L W T

X

 

 

Cooler

Leaving

 

Fluid

Temperature

 

 

 

 

 

 

 

 

 

SCTA X

 

 

Circuit A Saturated Condenser Temperature

 

 

 

 

 

 

 

 

 

S S T A X

 

 

Circuit A Saturated Suction Temperature

 

 

 

 

 

 

 

 

 

CTA X

 

 

Compressor Al Suction Temperature

 

 

 

 

 

 

 

 

 

SHA X

 

 

Circuit A Suction Superheat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEGEND

 

 

 

 

 

 

*Must be configured

 

 

 

 

 

 

 

 

CCN

- Carrier Comfort

Network

 

 

j-If

applicable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E X V

- Electronic Expansion Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M O P

- Maximum Operating Pressure

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 0

Page 30
Image 30
Carrier 040-420 specifications Keypad Directory

040-420 specifications

The Carrier 040-420 is a highly regarded commercial HVAC unit specifically designed for efficient heating and cooling in medium- to large-sized buildings. Known for its reliability and advanced technology, this system is ideal for a variety of applications ranging from offices to industrial spaces.

One of the main features of the Carrier 040-420 is its energy efficiency. The unit utilizes advanced compressors and a high-efficiency heat exchanger, which work together to minimize energy consumption while maximizing performance. This is crucial in today’s energy-conscious environment, as businesses strive to reduce operational costs and their carbon footprint. The unit also boasts a high SEER (Seasonal Energy Efficiency Ratio) rating, making it an attractive option for those looking to lower their utility bills.

Equipped with advanced inverter-driven technology, the Carrier 040-420 allows for precise control of indoor climate conditions. This means that the system can adjust its output according to the actual cooling or heating demand of the space, resulting in enhanced comfort and reduced energy waste. The inverter technology also contributes to quieter operation, allowing for a more pleasant indoor environment.

Another feature that sets the Carrier 040-420 apart is its smart controls. The unit can be integrated with Carrier’s Building Automation Systems, enabling remote monitoring and management. This allows facility managers to optimize energy use and immediately respond to any performance issues. Additionally, the unit is compatible with various control interfaces, making it easy for users to adjust settings or schedule operations according to the building's occupancy patterns.

The robust design of the Carrier 040-420 ensures longevity and durability, even in harsh environmental conditions. Its weatherproof casing protects the internal components, enhancing the unit's performance and reliability over time. Maintenance is simplified with accessible design features, allowing technicians to conduct service checks and repairs without extensive downtime.

Overall, the Carrier 040-420 stands out as a modern HVAC solution that combines energy efficiency, advanced technologies, and user-friendly features. Its commitment to performance and sustainability makes it an ideal choice for businesses looking to enhance comfort while being mindful of their energy consumption. With its blend of innovation and reliability, the Carrier 040-420 continues to be a preferred option in the commercial HVAC market.