User Guide
F-18785-9 © Copyright 2008 TAC All Rights Reserved. 5
Figure-5 Dial Stop Pin Insertion.
COVER INSERT INSTALLATION (See
Figure 6)
1. Select appropriate cover insert.
Note:
If blank insert is used, the knurled ring must be
removed from the setpoint dial. See Knurled Dial Removal.
Also, remove dial window by sliding and/or pressing window
from front of cover.
2. Remove protective backing and protective skin on face of
cover insert.
3. Press insert uniformaly on thermostat with logo in lower
left-hand corner.
Figure-6 Cover Insert Installation.
MAINTENANCE
Regular maintenance of the total system is
recommended to assure sustained optimum
performance.
Open areas at bottom and around base of thermostat
should be kept clean and free from obstructions to allow
proper flow of air. If switch contacts need cleaning, this
may be done with TOOL-13 (burnishing tool).
Note:
Thermostat may require calibration after cleaning the
contacts.
REPAIR
These thermostats are not field repairable. Replace
entire device.
Figure-7 TC-110x-500 Typical of Parallel Heat Anticipation.








