OEM DC BWA-SS-7 Installation And Maintenance Instructions Manual page 46

Dc inverter ground source heat pump - all in one

Table of Contents

Control

Alarm Messages

The cause of alarm 'CMP TEMP.' could be:

1. The connection of compressor exhaust air temperature sensor was loose;

2. The compressor exhaust air temperature sensor was broken;

How to do:

1. Find the connection and make sure it is fine;

2. As per resistance table of the sensor, please measure the sensor's resistance, to judge the

sensor was good or bad; replace a new one if the sensor get problem.

The cause of alarm 'BRING IN TEMP.' could be:

1. The connection of brine water inlet temperature sensor was loose;

2. The brine water inlet temperature sensor was broken;

How to do:

1. Find the connection and make sure it is fine;

2. As per resistance table of the sensor, please measure the sensor's resistance, to judge the

sensor was good or bad; replace a new one if the sensor get problem.

The cause of alarm 'BRING OUT TEMP.' could be:

1. The connection of brine water outlet temperature sensor was loose;

2. The brine water outlet temperature sensor was broken;

How to do:

1. Find the connection and make sure it is fine;

2. As per resistance table of the sensor, please measure the sensor's resistance, to judge the

sensor was good or bad; replace a new one if the sensor get problem.

The cause of alarm 'RETURN AIR TEMP.' could be:

1. The connection of Compressor return air temperature sensor was loose;

2. The Compressor return air temperature sensor was broken;

How to do:

1. Find the connection and make sure it is fine;

2. As per resistance table of the sensor, please measure the sensor's resistance, to judge the

sensor was good or bad; replace a new one if the sensor get problem.

The cause of alarm 'LIQ UID TEMP.' could be:

1. The connection of Refrigerant temperature sensor was loose;

2. The Refrigerant temperature sensor was broken;

How to do:

1. Find the connection and make sure it is fine;

2. As per resistance table of the sensor, please measure the sensor's resistance, to judge the

sensor was good or bad; replace a new one if the sensor get problem.

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