Commissioning
General guidelines for use
Before operation
Charge the solution and the refrigerant water if the solution and refrigerant water is in the barrels
during the delivery.
During commissioning, check the motor’s rotation direction of the solution pump, refrigerant
pump, and purge pump:
Note:
The flow of fluid cannot be seen because the solution and refrigerant pumps are
hermetically sealed.
CAUTION
Do not run the solution pump without solution.
Do not run the refrigerant pump without refrigerant water.
Use a rotation detector (Bell and Gosset or WILO DKG) to test the rotation direction. If a rotation
detector is not available, use the following procedure:
1. Remove the plugs at the solution and refrigerant sampling valves.
2. Make sure that the valves are completely closed.
3. Confirm that the absorber and refrigerant tank contain enough solution and refrigerant.
4. Connect a compound gauge (NPT 1/2 in.) to the sampling valve with Teflon tape.
Note:
The gauge’s scale must be -760 mmHg. to 2 Kg/cm
2
g, or -30 inches Hg. to 30 psig.
To prevent corrosion of the gauge, clean it thoroughly and check for leaks after use.
5. Operate the pump.
6. Open the valve.
7. Read and record the delivery pressure of the solution pump and the refrigerant pump.
8. Close the valve.
9. Check the pressure readings. See the following table to check if your pump's rotation is in the
right direction. The correct direction shows a higher discharge pressure.
Table 21: Rotary pump rotation
Correction rotation
Solution Circulation Pump
14.5 to 29 psig (0.1 to 0.2 MPaG)
Solution Spray Pump
13.8 psia to 2.9 psig (-0.05 to 0.02 MPaG)
Refrigerant Pump
13.4 psia to 2.9 psig (-0.08 to 0.02 MPaG)
10. Remove the compound gauge.
11. Put the plugs back on the valves.
97
YHAU-C Single Effect Steam-Fired Absorption Chiller
Summary of Contents for York YHAU-C
Page 2: ......
Page 33: ...Figure 11 Location of rupture disk 31 YHAU C Single Effect Steam Fired Absorption Chiller...
Page 103: ...Figure 49 Cooling start diagram 101 YHAU C Single Effect Steam Fired Absorption Chiller...
Page 104: ...Figure 50 Cooling stop diagram YHAU C Single Effect Steam Fired Absorption Chiller 102...
Page 166: ...Figure 73 Steam and drain system YHAU C Single Effect Steam Fired Absorption Chiller 164...
Page 167: ...Figure 74 Duhring diagram PTX chart F 165 YHAU C Single Effect Steam Fired Absorption Chiller...
Page 168: ...Figure 75 Duhring diagram PTX chart C YHAU C Single Effect Steam Fired Absorption Chiller 166...
