Table 9 - Keypad Directory (cant)

 

 

 

SUBFUNCTION

 

 

KEYPAD ENTRY

 

 

DISPLAY

 

 

 

 

 

 

 

COMMENT

 

 

 

 

 

1 RUN TIME

 

 

r;lm

 

RUN TIME

 

Run

Time lnformation

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

HR X

 

 

Total Hrs Unit Has a Comp Operating

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

HRA X

 

 

Circuit

A

Run

Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

cl

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

c b l

 

HRB X

 

 

Circuit

B

Run

Time

 

 

 

 

 

2

STARTS

 

 

 

1 2 1lHlST1

 

 

S T A R T S

 

Starts

Information

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

c + l

 

CY x

 

 

Cycles from Stage 0 to Stage 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

c + l

 

CYA X

 

 

Circuit A Starts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

c + l

 

CYB X

 

 

Circuit B Starts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1ALRMHIST

1Last 5 Alarms

 

 

 

 

 

3

ALARM HISTORY

I

 

 

I 3 I lH4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

>

Alarm Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

J

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SET POINT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To read a set point, go to proper subfunction and read desired set point To

change a set point, enter new set point value, then press

ENTR

 

 

 

 

LOCAL/ENABLE-STOP-CCN switch must be in LOCAL or STOP position,

 

 

 

 

 

 

cl

 

 

 

 

 

SUBFUNCTION

 

 

KEYPAD ENTRY

 

 

DISPLAY

 

 

 

 

 

 

 

COMMENT

 

 

 

 

 

1 SET POINTS

 

 

 

 

 

 

 

SET POINT

 

Jnit

Set

Point

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CSPl

x

 

Chiller Fluid Set Point 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CSP2

x

 

Chiller

Fluid

Set Point 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HSPA

X

 

Head

 

Pressure Set Point Circuit A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HSPB X

 

Head Pressure Set Point Circuit B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CRAMP X

 

Pulldown

Limit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

t

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 RESET SET POINTS

 

 

 

 

 

 

 

RESET

 

Reset Set Points

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CRST2

X*

 

Cooling

Max

Reset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CREF2 X*

 

Max Reset Occurs at X mA

or Degree

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CRSTI

X*

 

Cooling

Minimum

Reset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CREFI X*

 

Min Reset Occurs at X mA

or Degree

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 DEMAND SET POINTS

 

 

 

 

 

 

 

DEMAND

 

Demand

Set

Points

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DLSl

X*

 

Demand Switch 1 Set Point

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DLS2

X*

 

Demand Switch 2 Set Point

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DMAX X*

 

4-20

mA

Maximum

Demand

Limit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RMAX X*

 

Max Demand Limit Occurs at X mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DMIN

X*

 

4-20

 

mA

Minimum Demand

Limit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RMIN

X*

 

Minimum Demand Limit Occurs at X mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SHED X”

 

CCN Loadshed

Amount

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 DATE AND TIME

 

 

 

 

 

 

 

 

DATE.TIME

 

Date, Time and Day of Week

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DAY HR.MIN

 

Day 1 = Mon, 2 = Tues

7 = Sun

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hours are displayed in 24-hr time. Decimal point serves as colon.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MM.DD YR

 

Month.Day.Year.

When entering date, enter a decimal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

point between entries. Each entry must be two numbers.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36

Page 36
Image 36
Carrier 040-420 specifications Keypad Directory cant

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.