Johnson Controls York YHAU-C - Chiller Startup Procedures

Figure 42: Sample sound testing for YHAU-C chiller
LD19948
3
5
2
4
1
Evaporator side
Background
noise
Generator side
B Side
(steam inlet
side)
A side
Sound measure locations
Optional condition 1 2 3 4 5
Full load operation 77 dbs 79 dbs 79 dbs 78 dbs 72 dbs
Note:
1. Height: 59 in., Horizon: 39 in. (from chiller surface)
2. These are reference values, as the chiller unit was not insulated and water pipes were not
permanently secured during the measurement.
3. Position of measuring instrument.
Upper communication specification
The information in this section applies to both the C-EXE Series and the C-EXW series of steam-fired
absorption chillers.
Upper communication system configuration
The configuration of the upper communication system is shown in the following figure.
89YHAU-C Single Effect Steam-Fired Absorption Chiller