Brochure

Tunstall Corporation
118 Exchange Street • Chicopee, MA 01013
© July 2014
We reserve the right to alter designs, specifications and information without notice.
Phone [phone] · Fax [phone]
www.tunstall-inc.com • www.maconcontrols.com
Bulletin-MTW-0714
Non-Electric Operators
THERMOSTATIC OPERATOR
DIRECT MOUNT
MTW
The Macon MTW thermostatic operator will help you balance your heating system. The MTW operator
has one of the most accurate sensors for individual radiator temperature control. The problem of over-
heating, under-heating and wide temperature swings can now be controlled.
The MTW thermostatic operator by Macon Controls conserves energy by regulating temperature. Fuel
costs can be reduced up to 30%!
The MTW is a self-acting adjustable non-electric thermostatic operator. It has anti-freeze position, ad-
justable max./min. temperature, selected temperature locking feature and can be shutoff completely if
required. Each MTW thermostatic operator is individually calibrated and conforms to ASHRAE stan-
dardization rules for temperature regulation. The MTW’s smooth shape and narrow air gaps gives a nice
operation and makes it easy to keep clean. Can be mounted on all Macon NT series valves. Millions are
in use throughout the world.
See reverse for
min/max field adjustment
MTW shown with
Macon NT series valve