Trane RAUC-IOM-15, Installation & Maintenance Instructions Manual

Page: 33 / 68

33
Installation (Continued)
No System Control
Temperature Control Parameters
Each unit ordered with the “No Controls” option, requires a
field provided and field wired temperature controller. Single
refrigerant circuit units require a 2-step control device, and
dual refrigerant circuit units require a 4-step control device.
Each unit is shipped form the factory with internal “Fixed-
On” & “Fixed-Off” time delays wired into each step of cool-
ing. The “Fixed-Off” timers are 5 minutes each and they be-
gin timing when the circuit for that step of cooling is deacti-
vated. The “Fixed-On” timers are 3 minutes each and they
begin timing when the circuit for that step is activated.
Note: Units ordered with the “No Controls” option
can not be used with EVP Chiller applications.
Wire the controller in accordance with the field connection
diagram illustrated in Figure 3-11.
Figure 3-11A
Field Connection Diagram for RAUC-C80 “No System Controls” Application
Refer to Wiring Notes on
page 35
Diagram continued on
next page