SterlingTEK A0551797 manual High Pressure Cutout, Low Pressure Cutout, Flow Switch

4-8	High Pressure Cutout
	This electro-mechanical safety feature opens the control circuit if
	the system condensing pressure exceeds a safe level.
	High pressure cutout setting
	Model	psi	kPa	bars
SSC Series water-cooled chilling stations		290 psi	2,000 kPa	20 bars
SSC Series remote air-cooled chilling stations		375 psi	2,586 kPa	26 bars

Important!

The high pressure cutout is a manual reset control,

so you should reset it once.

If the problem persists, call a refrigeration service technician

to analyze the problem and to reset the control.

4-9 Low Pressure Cutout

This encapsulated switch safety feature prevents the compressor suction pressure from dropping below a pre-set point. It is factory set to open the control circuit when pressure drops below a safe level. The chiller will need to be restarted when the suction pressure reaches above 65 psi (448.2 kPa/4.5 bars).

	Opens control circuit @			Resets control circuit @
Model	psi	kPa	bars	psi	kPa	bars
SSC Series water-cooled chilling stations	15 psi	103.4 kPa	1.0 bars	30 psi	206.9 kPa	2.1 bars
SSC Series remote air-cooled chilling	15 psi	103.4 kPa	1.0 bars	30 psi	206.9 kPa	2.1 bars
stations

4-10 Flow Switch

The flow switch shuts down the chiller if the evaporator water flow falls below a safe operating gallons-per-minute (liters-per-minute) flow rate.

Page 30 of 86 SSC Series Central Chilling Stations