Dual Pressure Switch for HVAC/R Compressor, Low Pressure Auto
Adjust
Description
Where should a pressure switch be installed?
Except for special installations such as constant pressure water
pump systems in-well systems that do not use a conventional water
pressure tank or water storage tank, the pressure control switch
should be located as close to the pressure tank as possible.
Q830 series dual pressure controls can be not only used in
fluorinated refrigerant, but also in the air
and liquid (allowed liquid temp. -20 to 120°C)
Adjustable range and differential settings.
Renovated SPDT micro-switch ensures the reliable switch function.
Flexible mounting bracket suits various kids of application.
Upper lid is optional (IP44)
Various connections are available on request.
Automatic and manual reset version
The material of bellows is copper and pressure interface is brass.
CE approval
Specification
| Model | Low pressure(bar) | High pressure(bar) | Reset form(bar) | Factory setting(bar) |
| Pressure adjust range | Differential | Pressure adjust range | Differential | Low pressure | High pressure | Low pressure | High pressure |
| OFF | ON | OFF | ON |
| Q830 | -0.5~6 | -0.6~4 | 8~30 | 3~5(fixed) | Auto | Auto | 3 | 2 | 20 | 15 |
| Q830HM | -0.5~6 | -0.6~4 | 8~30 | ≤5 | Auto | Manual | 3 | 2 | 20 | Manual reset |
| Q830HLM | -0.5~6 | ≤1 | 8~30 | ≤5 | Manual | Manual | 3 | Manual | 20 | Manual reset |
Dimensions(mm)
Electric Wiring
Rated Amps(A) Rated Voltage(V) | Power Factory (Cosφ) | 125/250V AC |
| Non-Industry Current | 1 | 12 |
| Industry Current | Full Load | 0.75 | 12 |
| Locked Roter | 0.45 | 72 |
Connection & Installation
Mounting Plate
