Function:

Set

3 buttons to set.

Display

3 pcs of LED display temperature and alarm codes

Temperature detect

2 channels, detect range: -40°C ~ 60°C

Control

Control the work of DC fan based on indoor and outdoor temperature.

Monitor

Immersion

Frequency of fan

Alarm

LED display 4 alarm codes

When it has immersion or frequency of fan is too low output alarm signal.

Communication

Supply monitor software (installed in PC), use RS485 interface.

Technical parameter:

Rating voltage

DC +42V~DC +57V

Work ambient temperature

-25°C~+55°C

Work ambient humidity

5%~95%RH

Temperature detect range

-20°C~+60°C, compensation can be reset via button

Temperature accuracy

±2°C

Temperature resolution

1°C

DC fan on temperature

20°C~40°C, set via button

Return difference of temperature

2°C~ 10°C, set via button

Communication address

1 ~ 99

DC fan control logic:

On

1)Indoor temperature > preset of 'on temperature'

2)Indoor temperature – outdoor temperature > 5°C

Off

1)Indoor temperature < preset of 'on temperature' – preset of 'return difference of temperature'

2)indoor temperature ≤ outdoor temperature

When outdoor temperature sensor has fault, controller control the work of DC fan based on indoor temperature.

When indoor temperature sensor has fault, controller on the DC fan always work.