Criteria for Trip — The criteria are tested whether the circuit is ON or OFF. The alarm is generated if one of the following criteria is met:

1. If the voltage as sensed by the MBB is 0 vdc, which corresponds to the Navigator™ display of –7 psi (–48.3 kPa).

2.The circuit is ON in cooling mode and the Saturated Suction Temperature (Saturated Suction Temp, SST) for the circuit is greater than the Entering Water Tempera- ture and EXV opening is less than 50% for more than 60 seconds.

Action to be Taken — The circuit is shut down immediately, or not allowed to start.

Reset Method

1.Automatic, once the transducer voltage is greater than 0 vdc, which corresponds to the Navigator display of a value greater than –7 psi (–48.3 kPa).

2.Automatic once the circuit’s saturated suction tempera- ture is lower than the Entering Water Temperature by 3° F (1.6° C). If this criterion trips the alarm 3 times within a 24-hour period, the alarm changes to a manual reset.

Possible Causes — If this condition is encountered, check the following items:

•sensor wiring to Main Base Board

•board for a faulty channel

•faulty transducer

•faulty entering water temperature sensor

Reclaim Pumpdown Pressure Transducer

Alarm 32 — Circuit A (Pr.07)

Alarm 33 — Circuit B (Pr.08)

NOTE: Alarms 30 and 31 are not used or supported. If this condition is encountered, confirm machine configuration.

Oil Pressure Transducer

Alarm 34 — Circuit A (Pr.10)

Alarm 35 — Circuit B (Pr.11)

Criteria for Trip — The criteria are tested whether the circuit is ON or OFF. The alarm is generated if one of the following cri- teria is met:

1.If the voltage as sensed by the CPM board is 0 vdc, which corresponds to the Navigator display of –7 psi (–48.3 kPa).

2.The circuit is OFF and outside air temperature is below 35.6 F (2 C).

3.The circuit is OFF and the fluid type is brine.

Action to be Taken — The circuit is shut down immediately, or not allowed to start.

Reset Method — Automatic, once the transducer voltage is greater than 0 vdc.

Possible Causes — If this condition is encountered, check the following items:

•sensor wiring to CPM board

•board for a faulty channel

•faulty transducer

•plugged oil filter

•faulty oil solenoid valve coil

•stuck oil solenoid valve

•confirm unit configuration

Economizer Pressure Transducer Failure (sizes 175,200,350,400 only)

Alarm 37 — Circuit A (Pr. 13)

Alarm 38 — Circuit B (Pr. 14)

Criteria for Trip — The criteria are tested whether the circuit is ON or OFF. The alarm is generated if the voltage as sensed by the MBB or Fan Board C is 0 vdc, which corresponds to the Navigator display of –7 psi (–48.3 kPa).

Action to be Taken — The circuit is shut down immediately, or not allowed to start.

Reset Method — Automatic, once the transducer voltage is greater than 0 vdc, which corresponds to the Navigator display of a value greater than –7 psi (–48.3 kPa).

Possible Causes — If this condition is encountered, check the following items:

•sensor wiring to EXV Board

•EXV board for a faulty channel

•faulty transducer

•faulty economizer EXV or EXV wiring

•faulty economizer EXV channel on the board

•closed or partially closed suction service valve

•confirm unit configuration

Loss of Communication with Compressor Board

Alarm 53 — Compressor Board A (Co.A1)

Alarm 54 — Compressor Board B (Co.B1)

Criteria for Trip — The alarm criterion is tested whether the unit is ON or OFF. If communication with the Compressor Protection Module Board (CPM) is lost for a period of 10 sec- onds, the alarm will be generated.

Action to be Taken — The affected compressor will be shut down.

Reset Method — Automatic, if communication is established. If called for, the compressor will start normally.

Possible Causes — If this condition is encountered, check the following items:

•power supply to the affected CPM board

•address of the CPM

•local equipment network (LEN) wiring

•confirm unit configuration

Loss of Communication with EXV Board

Alarm 56 — Circuit A, EXV Board 1 (Co.E1) Alarm 57 — Circuit B, EXV Board 2 (Co.E2)

Criteria for Trip — The alarm criterion is tested whether the unit is ON or OFF. If communication with EXV1 or 2 is lost for a period of 10 seconds, the alarm will be triggered.

Action to be Taken — If running, Circuit A or B will shut down normally. If Circuit A or B is not operating, it will not be allowed to start.

Reset Method — Automatic, if communication is established, the unit will start normally.

Possible Causes — If this condition is encountered, check the following items:

•power supply to EXV1 or 2

•address of the EXV board

•local equipment network (LEN) wiring

•confirm unit configuration

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Carrier 30XW150-400 specifications Reset Method
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30XW150-400 specifications

The Carrier 30XW150-400 series is a line of water-cooled chillers that exemplifies innovation, efficiency, and reliability in commercial cooling solutions. Designed for medium to large-scale applications, this series is ideal for a variety of settings, including commercial buildings, industrial processes, and chilled water systems.

One of the standout features of the Carrier 30XW series is its efficiency. The chillers utilize advanced variable-speed compressor technology, which allows the units to adapt to varying cooling loads while minimizing energy consumption. This technology not only reduces operational costs but also contributes to better environmental sustainability by lowering greenhouse gas emissions.

The 30XW series chillers are equipped with high-efficiency, scroll compressors that operate quietly and provide significant energy savings. By utilizing enhanced economizer controls, these units can achieve higher efficiency ratings, especially in part-load conditions. The result is an impressive Energy Efficiency Ratio (EER) and Seasonal Energy Efficiency Ratio (SEER), making these units a smart choice for energy-conscious businesses.

In terms of reliability, the Carrier 30XW150-400 series features robust construction and an array of safety and monitoring systems. The units come with advanced diagnostics that help in quickly identifying and addressing any operational issues. This proactive approach ensures reliability and minimizes downtime, which is crucial for maintaining optimal temperature controls in critical environments.

Additionally, the chillers incorporate environmentally friendly refrigerants that comply with the latest regulations, making them a sustainable choice for modern commercial applications. Their compact design allows for flexible installation options, and the integrated control systems provide the ability to optimize performance based on specific building management demands.

User-friendly interfaces and remote monitoring capabilities further enhance the ease of operation, allowing facility managers to have real-time insight into performance metrics and system health. This level of control contributes to better maintenance planning and maximizes the lifespan of the equipment.

In summary, the Carrier 30XW150-400 series of water-cooled chillers combines advanced technology, energy efficiency, and reliable performance, making it an ideal solution for various commercial and industrial cooling needs. With its commitment to innovation and sustainability, Carrier continues to set the standard in the HVAC industry.
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