SterlingTek A0551797 用户手册

Note:  If the recirculation pump does not turn on (or that the flow switch is not satisfied) the 

compressors will not be allowed to turn on. 

 

6.  Check the pump(s) amp draws and pressures. The amp 

draws must be within the pump(s) running load and service 
factor amps. 

7.  Operate the chiller, looking for leaks and listening for 

unusual noises or vibrations that could indicate improper 
operation. 

8.  Check condenser fans for pressure switch settings as shown 

in the table below: 

 

1 

not applicable; Fan 1 is a variable-speed fan 

2 

240 

1,654.8 

16.5 

190 

1,310.1 

13.1 

3 

265 

1,827.2 

18.3 

215 

1,482.4 

14.8 

4 

285 

1,965.1 

19.7 

235 

1,620.3 

16.2 

5 

305 

2,102.9 

21.1 

255 

1,758.2 

17.6 

 
 

To determine flow: 

 

1.  Close the gauge cock leading to the pump suction side and 

open the gauge cock leading to the pump discharge. 

2.  Start the pump and make note of the discharge pressure in 

psi (kPa/bars). 

3.  Check the pump curve for the appropriate horsepower 

pump at the discharge pressure psi. 

4.  Project this point down to find the flow in gpm (lpm). 

5.  Process pumps can be left wide open if running amps are 

below full load amps. 

 

1.  Ready process and related equipment for shut down. 

2.  Turn off main power. 

3.  Close the water make up valve. 

4.  If the system is to be drained, open the 2” drain valve.