Johnson Controls T58 Series Catalog Page

Room Thermostats Section

T58 Series Low Voltage Thermostat

SPDT With Center Off Position

Master Catalog 125

Product Bulletin T58

Issue Date 0790

Applic ation

The T58 low voltage thermostats
are used to position Johnson
Controls M20AGA and M25MGA
damper motor actuators.
Models are available to position
one or two motor actuators.
Special models are available to
position customer’s actuators
and/or relays.

The thermostat senses the room
air temperature and
automatically operates the
damper actuator to position the
air mixing damper.

All Series T58 thermostats are
designed for use
operating controls. Where an
operating control failure
would result in personal injury
and/or loss of property, it is
the responsibility of the
installer to add devices
(safety, limit controls) or
systems (alarm, supervisory
systems) that protect against,
or warn of, control failure.

only

as

Specifications

Features

•

Snap-acting contacts with

“Center Off” position,
operated by a bimetal
sensing element.

•

Attractive styling.

•

Heat and cold anticipators
appropriately sized for
current draw of operated
device(s).

General Description

The thermostats have attractive
styling. The snap-acting
contacts are of fine silver and
will not chatter. One piece
installation to a standard vertical
outlet box with two captive
screws through baseplate. No
mounting bracket is required.

The temperature setting is
changed by sliding the selector
lever at top of the thermostat.

Fig. 1: T58 Low Voltage

Thermostat.

Repairs and Replacement

Field repairs must not be made.
For a replacement thermostat,
contact the nearest Johnson
Controls wholesaler.

Ordering Information

To order, specify:

1. Complete Product Number,
if available.

2. If Product Number is not
available, specify Type
Number and description.

© 1990 Johnson Controls, Inc.

Code No. LIT-125665

Fig. 2 -- T58 Thermostat with the

cover removed.

1

CSA Class No. 4813 02

File LR948

Controls Group

507 E. Michigan Street
P.O. Box 423 Printed in U.S.A.
Milwaukee, WI 53202

2 T58 Product Bulletin