Submittal Sheet

A28 Product Bulletin 3
Ordering Information
To order, specify:
1. Type number (see Type
Number Selection).
2. Range required.
Fig. 4 -- Style 1 swaged bulb
with support tube for clamp-on
or closed tank applications
Fig. 5 -- Part Number
FTG13A-600R packing nut
assembly. (Use with
Style 1 bulb with support tube
for direct immersion
applications.)
Fig. 6 -- Bulb well for liquid
immersion applications where a
temperature bulb may be
removed without draining tank.
3. Between-stage differential
(nonadjustable models
only).
4. Capillary length, if other
than 6 feet (1.8 m).
5. Packing nut assembly or
bulb well, if required.
Fig. 7 -- Between-stages
differential can be increased by
rotating adjusting cam
counterclockwise
as illustrated above.
6. Specify type of range
adjustment if other than
knob adjustment.
Repairs and Replacement
Field repairs must not be made.
For a replacement control,
contact the nearest Johnson
Controls wholesaler.
Fig. 8 -- The controls have a
screw type cutout stop. The
stop screw must be loosened
and moved to the stop setting
desired. Tighten screw after
setting is made.
Fig. 9 -- Switching action of the two-stage control is illustrated
in the sketch above. RB
H
, RY
H
indicates HI-TEMP stage; RB
L
, RY
L
indicates
LO-TEMP stage. “D” represents the differential between stages.