Product Overview

Separate 24 vac
20 va Transformer
Or Connect to any M1/M2
on the EWC Controls
Zone control panel.
“EBD” ELECTRONIC BYPASS MOTOR
AND STATIC PRESSURE CONTROL
DAMPER ASSEMBLY
Note: Remove cover off of diaphragm to field wire.
NC
NO
C
WIRE
NUT
1
4
6
MA-ND4
MOTOR
PS4
PRESSURE SWITCH
ADJUSTMENT SCREW
GREY SPRING
102
MM
W.C.
IN
W.C.
4
75 3
2
1
.5
.1
50
25
13
3
CAP
SCALE
LO-PRESSURE PORT.
LEAVE OPEN TO ATMOSPHERE
ON
OFF
HI-PRESSURE PORT
WITH BARBED CONNECTOR.
CONNECT TO PITOT TUBE.
Loosen screw
to access wiring
compartment
Loosen screw
to access wiring
compartment
385 Hwy. 33
Englishtown, NJ 07726
Ph: 800-446-3110
Fx: 732-446-5362
P/N 090377A0063 REV. H 10.30.09
CONTROLS INC.
E
W
Excellence Without Compromis
e
Copyright © 2000, EWC Controls Inc., All Rights Reserved
SUBMITTAL SHEET
TM
Forced Air Zone Controls
Model PS4
EBD (Static Pressure Switch)
®
Field Wiring