Trane RTAC 140-400 ton units (50 HZ) User Manual
RTAC-SVX01F-EN
43
Installation - Mechanical
2.
To prevent switch fluttering, remove all air from the water system.
NOTE:
The CH530 provides a 6-second time delay after a “loss-of-flow” diagnostic
before shutting the unit down. Contact a qualified service representative if nuisance
machine shutdowns persist.
machine shutdowns persist.
3.
Adjust the switch to open when water flow falls below the minimum flow rate.
Evaporator data is given in the General Information section. Flow switch contacts
are closed on proof of water flow.
are closed on proof of water flow.
4.
Install a pipe strainer in the entering evaporator water line to protect components
from waterborne debris.
from waterborne debris.
Evaporator Water Pressure Drop RTAC 140 - 250 Ton
Figure 23
Evaporator Water Pressure Drop
Evaporator Water Pressure Drop
1
10
100
100
1000
Flow Rate (GPM)
Pressure Drop (ft H2O)
250S, 200H,
225H, 250H
(60Hz)
225H, 250H
(60Hz)
225S, 185H
200S, 170H
185S, 155H
170S, 140H
155S
140S