Wiring, Wiring diagrams, Dodge engineering & controls, inc – Dodge ES142 User Manual
Page 9: Installation, Es142 spring return electronic actuators, 24 vac, Three-position control (24 vac/dc)
Dodge Engineering & Controls, Inc.
Toll Free (877) 334-2875 Fax: (978) 244-1422
Installation
ES142 Spring Return Electronic Actuators
129-270 EAI/ES-9 DEI,
Inc.
Wiring
24 VAC or 120 VAC
All wiring must conform to NEC and local codes and regulations.
24 VAC
Use earth ground isolating step-down Class 2 transformers. Do not use auto transformers. Determine the supply
transformer rating by summing the total VA of all actuators used. The maximum rating for a Class 2 step-down
transformer is 100 VA. The ES142 (24 VAC) actuators require 8 to 9 VA; therefore it is recommended that up to
10 actuators (between 80 and 90% of transformer VA) can be powered by one transformer. Operating more than
10 actuators requires additional transformers or separate 100 VA power trunks.
WARNING:
Mixed switch operation is not permitted. To the switching outputs of both auxiliary switches (A and B),
only apply:
• Standard cable (250 Vac/24 Vdc)
− UL/cUL: line voltage, or
− UL/cUL: Class 2 voltage.
NOTE:
Either all six outputs of the dual auxiliary switches must be connected to line voltage or all six
outputs must be connected to Class 2 voltage.
• Plenum cable (24V)
− UL/cUL: Class 2 voltage.
Wiring Diagrams
Three-Position Control (24 VAC/DC)
EA0868R1
NEUT
EARTH GROUND
ISOLATING CLASS 2
TRANSFORMER FOR
24 Vac POWER
120 Vac
2 (BLACK)
7 (ORANGE)
6 (VIOLET)
1 (RED)
24
Vac
Figure 17. Three-Position Control.