Honeywell R7500C User Manual

They are fastened to the mounting surface through the two 
diagonally opposed mounting holes in the back of the case. 
See Fig. 1. 

For access to the mounting holes, remove the cover from the 
case by loosening the cover mounting screw. 

The mounting holes are now visible through the circuit board 
notches in the upper right and lower left-hand corners. 

Determine placement of the mounting holes in the surface 
and scribe the mounting hole locations. Drill pilot holes and 
fasten with No. 10 screws. 

Refer to job drawings for specific installation information and 
mounting location. Main and compensation sensors (when 
used) must be 500-ohm Balco sensors (L7022, L7025, 
L7033, T7506 or T7001). 

This controller is surface mounted through the two holes in 
the back of the case. 

Observe ambient temperature (30 to 140F) (0 to 60C) and 
relative humidity (5 to 95%) limitations. 

No special tools are required to install this controller. 

This controller requires a 11 to 12V dc power supply 
for proper operation. The power may be supplied by 
an R7503 Modutrol* Motor Converter, R7504 Two-
Position Converter, RP7505 Pneumatic Transducer, 
Electronic Modutrol Motors M734K or M745J, any 
other device designed for use with this Temperature 
Controller, or a separate dc power supply. This 
controller outputs 4 to 7 Vdc across the proportional 
band setting. It is designed to work with motors and 
actuators that expect a 4 to 7 Vdc input signal. 

This controller can be surface mounted in any convenient 
location such as on duct walls, end compartments of unit 
ventilators, etc. 

Copyright © 1995 Honeywell Inc.  •  All Rights Reserved 

95-7205