Security Features - Honeywell T4398A Product Data

T4398A,B PRECISION ELECTRIC HEATING THERMOSTAT
Fig. 7. Calibrating the thermostat.

Security Features

To install the locking cover (select models (Fig. 8):
1. Remove cover by swinging up from the bottom.
2. Insert the Tinnerman Speed Nut® (supplied) into the
slot at the lower rear thermostat base.
3. Drive Allen screw into Speed Nut until head is flush with
lower edge of thermostat base.
4. Reinstall cover and lock by backing out Allen screw until
screw body protrudes through cover hole.
5. To unlock cover, drive Allen screw into thermostat base
until screw body clears cover.
69-1604
THERMOSTAT
BASE
SETTING KNOB
AT 12 O'CLOCK
POSITION
SCALE RING
SETTING KNOB
M5796
THERMOSTAT
COVER
LOCKING
COVER SCREW
Fig. 8. Installing locking cover.
To install the range stops (select models) (Fig. 9):
1. Set thermostat to desired setpoint and remove the
cover.
2. Install plastic dowels (supplied) into minimum and/or
maximum range stop holes on the back of the cover.
3. Reinstall the cover and check range stop operation.
Fig. 9. Installing range stops.
6
THERMOSTAT BASE
LOCKING
COVER
CLIP
ALLEN WRENCH
M5798
BACK OF
THERMOSTAT
COVER
INSERT RANGE
STOP PINS IN
SLOTS.
M5801