Jackson Systems ESP-400 Installation instructions

ESP-400 Electronic Static Pressure Module
Installation & Operation
Instructions
INTRODUCTION
The ESP-400 is designed to work with any forced air zone control system capable of using
conventional 24 Volt, 3-wire, floating point, motorized zone dampers. The module will handle up to four
zones. The same transformer used to power the zone control panel is also used to provide power to
the ESP-400. The module uses a ESP-400-PS pressure sensor that is installed in the main discharge
air plenum of the HVAC system.
SEQUENCE OF OPERATION
As zone dampers open and close, the ESP-400 continuously monitors the system static pressure and
if required, sends a signal to zone dampers that are in the closed position to open to a point where the
proper static pressure level is maintained. The small amount of air that is allowed to bleed into non-
calling zones eliminates air noise and assures proper airflow through the HVAC system preventing coil
freeze up.
INSTALLATION
1. Make sure all power is disconnected to the HVAC equipment and zoning panel.
2. Remove the ESP-400 cover and locate the panel on a flat, non-condensating, vertical surface near
the zone control panel that will facilitate ease of access and wiring. Use appropriate anchors and
screws to secure the panel to the surface.
3. Run a 3-wire cable from each zone damper to the PC, C, PO terminals on the ESP-400.
Strip 1/2” insulation off of each wire. Confirm the Power Close, Common and Power Open
wires and then push each wire into the terminals on the ESP-400. Repeat this step for
each zone damper in the system.
4. Run a length of 18-2 thermostat wire from the Power Close and Power Open terminals on the
zoning panel to the PC and PO terminals on the ESP-400. Make sure that the wire leads to the
ESP-400 terminals have 1/2” insulation stripped off and then push each wire into the terminal block.
Repeat this step for each zone damper in the system.
5. Run a length of 18-2 thermostat wire from the 24 volt power terminals on the zoning panel to the
24VAC ‘R’ and ‘X’ terminals on the ESP-400. Make sure that the zoning panel 24 volt hot and
common match the ‘R’ Hot and ‘X’ Common on the ESP-400.
6. Drill a 9/32” diameter hole in the middle of the main discharge air plenum prior to any zone dampers
or duct transitions. Take the ESP-400-PS Pressure Sensor probe and install it with the arrow in the
direction of airflow. Mount the ESP-400-PS Pressure Sensor in an accessible location with the
diaphragm in the vertical position. Use the supplied plastic tubing and attach one end to the sensor
probe and the other end to the ( ) high pressure fitting on the pressure sensor. Run conventionalP1+
18-2 thermostat wire from terminals 2 and 3 on the pressure sensor to the PS1 and PS2 terminals
on the ESP-400 panel. The terminals are not polarity sensitive. (See wiring diagram on page 3)
1

ESP-400 TERMINAL AND LED DESIGNATIONS
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 24VAC
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
PC
C
PO
PC
C
PO
PC
C
PO
ZONE 4 ZONE 3 ZONE 2 ZONE 1
3-WIRE OUTPUT
TO ZONE 1
DAMPER
3-WIRE OUTPUT
TO ZONE 2
DAMPER
3-WIRE OUTPUT
TO ZONE 3
DAMPER
3-WIRE OUTPUT
TO ZONE 4
DAMPER
LED ON WHEN
DAMPER IS
OPEN
LED ON WHEN
STATIC PRESSURE
IS HIGH
LED ON
WHEN MODULE
HAS 24VAC
MODULE
POWER
FUSE
ZONE 1 DAMPER
INPUT FROM
ZONE CONTROL PANEL
ZONE 2 DAMPER
INPUT FROM
ZONE CONTROL PANEL
ZONE 3 DAMPER
INPUT FROM
ZONE CONTROL PANEL
ZONE 4 DAMPER
INPUT FROM
ZONE CONTROL PANEL
24VAC
INPUT FROM
ZONE CONTROL PANEL
STATIC PRESSURE
SENSOR TERMINALS
MOUNTING HOLES
MOUNTING HOLES
2

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 24VAC
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 PANEL TERMINALS
ZONE 1
DAMPER
ZONE 2
DAMPER
ZONE 3
DAMPER
ZONE 4
DAMPER
ESP-400
3
32
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 ( ) highP1+
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

TEST, CHECK AND STARTUP
1. Verify that all component wires have been connected to the proper terminals and are secure.
2. Apply 24 Volt power to the zone control panel.
3. Confirm that the ESP-400 POWER ON LED is on.
4. Put each zone thermostat in the OFF position.
5. With no calls taking place, the zone LEDs on the ESP-400 should be on confirming that all
dampers are in the open position.
6. Force a heating or cooling call from the zone one thermostat.
7. ZONE 1 LED on the ESP-400 should stay on and ZONE 2, 3 and 4 LEDs should go out.
8. When the equipment is energized, the PRESSURE ABOVE SETPOINT LED on the ESP-400 will
come on if there is an increase in system static pressure. The ESP-400 will begin to modulate
open all zone dampers that are in the closed position until the pressure increase is relieved.
9. Repeat step 6 for each zone thermostat in the system.
10. Once Test, Check and Startup is completed, place all zone thermostats in their normal mode of
operation.
ESP-400 SPECIFICATIONS:
Panel Dimensions:
Height: 8.0”
Width: 6.0”
Depth: 1.375”
PC Board Mounting:
Snap Track mounted to enclosure base
Operating Temperature Rating:
-40° F to 150° F
Operating Humidity:
5% to 90% RH non-condensing
Wiring:
18-gauge wire for all connections
TERMINAL DESIGNATIONS:
Panel Power
R 24Vac (Hot)
X 24Vac (Common)
Zone Panel Damper Inputs (4)
PC Power Close
PO Power Open
Damper Outputs (4)
PC Power Close
C Common
PO Power Open
Pressure Sensor
PS1
PS2
406-1237-040616
5418 Elmwood Avenue, Indianapolis, IN 46203-6025
Toll Free: 888.652.9663 Fax: [phone]
www.jacksonsystems.com