TYPICAL WIRING DIAGRAM
5 AMP
ESP-400 STATIC PRESSURE MODULE
03-23-16
DAMPER COMMON
FROM ZONE PANEL
NOT REQUIRED
ZONE 1
ZONE 2
ZONE 3
ZONE 4
PRESS SW
24V
AC
PC
PO
PC
PO
PC
PO
PC
PO
PS1
PS2
R
X
ZONE 1
ZONE 2
ZONE 3
ZONE 4
PRESSURE
ABOVE
SETPOINT
POWER
ON
PATENT PENDING
5 AMP
POWER
PC
C
PO
ZONE 4
PC
C
PO
ZONE 3
PC
C
PO
ZONE 2
PC
C
PO
ZONE 1
R
X
PC
C
PO
ZONE 4
PC
C
PO
ZONE 3
PC
C
PO
ZONE 2
PC
C
PO
ZONE 1
ZONE CONTROL
P
ANEL
TERMINALS
ZONE 1
DAMPER
ZONE 2
DAMPER
ZONE 3
DAMPER
ZONE 4
DAMPER
ESP-400
3
3
2
FACTORY SET
AT 0.35” W.G.
The ESP-400-PS pressure sensor should be
installed on a flat, surface so that the diaphragm is
in the vertical position. Use the 1/4” x 36” tubing
provided and connect one end to the (
) high
P1+
pressure fitting on the sensor. The other end of the
tubing should be connected to the plastic sensing
probe mounted in the main discharge air plenum
prior to any zone dampers or duct transitions. The
sensing probe is 3-1/8” x 1/4” O.D. Install and
mount the probe with the arrow in the direction of
airflow. The ESP-400-SP is factory set for 0.35”
W.C. but is fully adjustable from 0.08” to 1.20” W.C.
PRESSURE
SENSOR
INPUT
WIRE TO
PS1 & PS2
STATIC PRESSURE
SETPOINT DIAL
