Honeywell TP9600 - Manual (Page 17)

TP970 AND TP9600 SERIES PNEUMATIC THERMOSTATS
17 75-7134—1
M12205
SPRING
LEVER
COVER
PLATE
CAUTION:
THIS PIN IS FREE
TO DROP OUT WHEN
LEVER IS RELEASED.
Day/Auto Lever Assembly Replacement
1. Remove the three Phillips head screws that fasten the
lever mechanism to the back of the thermostat (Fig.
20).
2. Lift off the cover plate and remove the lever (with
attached seal).
3. Lift the spring from the post.
4. Install the replacement parts in reverse order.
5. Replace and tighten screws.
M12137
14001992-001
16/21 PSI
CHANGEOVER
SPRING
SCREW
Fig. 20. DAY/AUTO Lever Assembly Replacement.
Switchover Adjustment Spring Replacement
1. Using a screwdriver, carefully remove the screw and
switchover adjustment spring (Fig. 21). See PARTS
LIST in PARTS and ACCESSORIES section for
available springs.
2. Replace the spring, then carefully position and replace
the screw.
3. Calibrate the thermostat.
Fig. 21. Switchover Adjustment Spring Replacement.