Carrier 40KMQ------301 owner manual Unit warning lights and controls Fault code, Indoor unit LEDs

Page 4

40KMC------

310/ 40KMQ------

310

Unit warning lights and controls - Fault code

E N G L I S H

P: Green LED

Q: Red LED

R: Yellow LED

S: Remote control signal receiver

Indoor unit LEDs

Information concerning indoor unit operation, timer status and diagnostic is given by 3 LEDs located on the unit.

•THE GREEN LED (P) shows the following conditions:

-Fault codes (diagnostic);

-During normal operation, the LED is lit.

Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the LED flashes. Between one flash cycle and the next a pause of 5 seconds elapses.

•THE RED LED (Q) gives the following information:

-During normal operation, the LED is OFF;

-During defrost the LED is lit;

-During the test for wired connection, the LED flashes at 0.1 second intervals.

•THE YELLOW LED (R) shows the operation in timer mode. During this operation the LED is lit.

If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until a new signal is sent to the unit.

In case the Room Controller is not working, obtain a qualified service personnel.

Fault code

Once a failure occurs with the indoor unit in operation, the green unit LED flashes at intervals of 0.5 seconds.

The fault code is deduced from the number of times the green LED flashes, blocking unit operation.

Between one flash cycle and the next one, a pause of 5 seconds elapses.

Table IX: Fault code

Code

Description

3

Room air sensor fault

2

Condensate discharge pump

4

Indoor unit coil sensor fault

6*

Filter dirty

7

Outdoor unit failure

10

EEPROM corrupt

11

Card serial number damaged

12

Address / zone incomplete

13

Gas flow distributor corrupt

14

Outdoor air thermistor

 

 

* with enabled code

Table II: Periodical checks

Indoor unit

Every month

Every 4 months

Every year

 

 

 

 

Clean air filter (2)

•(1)

•

 

Clean drain pipe (2)

 

 

 

 

 

 

Outdoor unit

Every month

Every 4 months

Every year

 

 

 

 

Clean outdoor coil from outside

 

•

•

Clean outdoor coil from inside (2)

 

 

Blow air over electric parts (2)

 

 

•

Check electric connection tightening (2)

 

 

•

Clean fan wheel (2)

 

 

•

Check fan tightening (2)

 

 

•

Clean drain pan (2)

 

 

•

For a good operation of the air conditioner it is recommended to carry out checks and maintenance as indicated. Recommended maintenance intervals may vary depending on the installation environment, e.g. dusty zones, etc.

(1)Increase frequency in dusty zones.

(2)Operations to be carried out by qualified service personnel. Refer also to “Installation Manual”.

GB - 3

Page 3 Page 5
Image 4
Page 3 Page 5
Contents 40KMC 301 40KMQ Contents 40KMC 310/ 40KMQUnit operation and maintenance General informationSystem description This unit complies with UL 1995 directive Usa and CanadaUnit warning lights and controls Fault code Fault codeTable IX Fault code Indoor unit LEDsOptimum comfort and minimum power consumption Correct cleaningTurn the unit OFF and switch the main supply OFF Before a long shutdown periodDisplay of selected functions Down CharacteristicsTable I Unit protection devices Room controller wired control Power upSetting mode operation OFF ModeFAN only Mode UP and Down button Selecting the desired temperatureFAN button Adjusting the ventilation speed Louver mode selectionTroubleshooting L010127H09 Via R. Sanzio, 9 20058 Villasanta MI Italy Tel /3636.1

40KMC------301, 40KMQ------301 specifications

Carrier has been a pioneer in the HVAC industry, consistently delivering innovative solutions that prioritize energy efficiency and performance. Among its notable offerings are the Carrier 40KMQ-301 and 40KMC-301 models, which exemplify advanced technologies designed to meet diverse cooling needs.

The Carrier 40KMQ-301 is part of Carrier's ducted split systems, designed primarily for commercial applications. This model boasts a robust cooling capacity, making it suitable for larger spaces that demand efficient climate control. Its key feature includes a high-efficiency scroll compressor, which enhances energy performance while reducing operational noise. Additionally, the 40KMQ-301 includes an advanced microprocessor control system, allowing for precise temperature management and real-time monitoring.

On the other hand, the Carrier 40KMC-301 operates as a multi-split system, providing flexible cooling options for various configurations. This model allows for multiple indoor units to be connected to a single outdoor condenser, optimizing space without compromising performance. The 40KMC-301 emphasizes energy saving, achieving high SEER (Seasonal Energy Efficiency Ratio) ratings, which reflects its efficiency in both cooling and heating modes.

Both models incorporate Carrier's innovative environmentally friendly refrigerants, ensuring less impact on the ozone layer while maintaining high thermal efficiency. Furthermore, they come equipped with a range of airflow configurations, allowing users to tailor the distribution of air according to their unique layout and design requirements.

Durability is another hallmark of these models; they feature corrosion-resistant cabinets that withstand harsh environmental conditions, ensuring longevity and reducing maintenance costs. Integration with smart building technologies is also a highlight, allowing for seamless connectivity with building management systems.

In conclusion, the Carrier 40KMQ-301 and 40KMC-301 represent the forefront of HVAC technology, characterized by high efficiency, flexibility, and advanced control systems. These models not only provide reliable cooling solutions but also contribute to overall energy savings, positioning Carrier as a leader in the sustainable HVAC market.
Top Page Image Contents