Product Overview

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-MC-ZM-1214
Electric Operators
ELECTRIC ZONE VALVE ACTUATOR
ZM Series
Description
Designed for use with the Macon NT Series
Valves, the ZM series electric zone valve actuator
is a new concept in zone controls. Utilizing a
gearless electric thermic operator, this valve ac-
tuator operates off low power 24V AC. Propor-
tional control can be realized by using time pro-
portioning techniques. The ZM series is ideal for
control of Radiators, Fin-Tube, Zones, Solar Pan-
els, Heat Pumps etc…
Features
 Normally open or normally closed
 Suitable for low pressure steam
 Low power consumption
 Noiseless operation
 Easy installation
 Compact size
 Low cost
Specifications
Data ZMO 24 ZMC-24
Voltage 24V AC 24V AC
Current, initial 300mA 300mA
Current consumption 41.7mA/1W 41.7mA/1W
Closing and
opening time ca 3 minutes ca 3 minutes
Stroke ca 4 mm ca 4 mm
Max amb. temp. 122 F 122 F
Design
Body plastic, light grey
Function Indicator plastic, light blue
Adapter VA 54
Weight 4.6 oz
Conn. cable 2 x 0,75 mm
2
light grey
3 feet
No Current,
Normally Open Closed