Brochure

ELECTRIC ZONE VALVE ACTUATOR
ZMC - DDC Series
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-ZMC-DDC-0714
Electric Operators
2
2.2 Function Display
The function display (all-round display) of the Macon ZMC - DDC shows at first glance whether the valve is open or closed;
this can be also felt in the dark.
• In case of the NC version, an extended function display
shows opening of the valve.
2.3 “First Open” function (for NC only)
In its delivery condition, the Macon ZMC-DDC is normally open due to the “First Open” function. This enables heating op-
eration during the construction phase even when the electric wiring of the single room control is not yet complete. When
commissioning the system at a later date, the "First Open" function is automatically unlocked by applying the operating volt-
age (for more than 6 minutes) and the actuator is fully operable.
3) Technical Data
Voltage (according to variant)
24 V AC, -10% … +20-%, 50-60 Hz
24 V AC, -20% … + 20%,
Control voltage range 0 V … 10 V (reverse polarity protected)
Max. inrush current < 300 mA during max. 2 min.
Operating power 1 W
1)
Resistance of control voltage input
100 kΩ
Stroke (actuator travel) 4.0 / 5.0 mm (minus 0.5 mm over-elevation)
Actuating force 100 N ± 5%
Fluid temperature 32° F - 212° F
2)
Storage temperature -130° F - 149° F
Ambient temperature 32° F - 140° F
Degree / class of protection IP 54
3)
/ III
CE conformity according to EN 60730
Housing material / color Polyamide / white
1) measured with precision
reference meter LMG95
Connection line / color 3 x 0.22 mm² PVC / white
Cable length 3’ 3”
2) depending on the adapter
even higher
Weight with connecting cable (1 m) approx. 3.9 oz
Surge protection according to EN 60730-1 min. 1 kV 3) in all installation positions
If a 4 mm actuator without valve path recognition is used or
valves with an actuator travel of 3 mm, the actuator ravels
without load for control voltages from 7.5 V to 10 V.