CONTROL MUST BE MOUNTED
IN VERTICAL POSITION
THE 1/4” TUBING SHOULD BE
CONNECTED TO P1+
HIGH PRESSURE FITTING ON THE
PRESSURE SENSOR
AIR HANDLER
TOP VIEW
RETURN
AIR
SUPPLY
AIR
INSTALL
SENSING
PROBE
WITH ARROW
IN DIRECTION
OF AIRFLOW
ZPA-SPS
INSTALLING AND WIRING THE ZP3-HPS-ESP
MOUNTING THE ENCLOSURE:
Carefully remove the panel from the shipping
carton. Remove the cover and any packing
material. Locate the panel on a flat, non-
condensating, vertical surface near the indoor
unit that will facilitate ease of wiring and service
access. Use appropriate anchors and screws to
secure the panel to the surface.
NOTE:
The panel utilizes home run wiring. Tag each
zone thermostat cable and its associated zone
damper cable to minimize wiring errors.
WIRING ZONE THERMOSTATS:
Use conventional 18-8 thermostat wire. After
removing the outer jacket, strip approximately
1/8” insulation off of each wire. Land each wire to
its designated screw terminal.
WIRING ZONE DAMPERS:
Use conventional 18-3 thermostat wire. After
removing the outer jacket, strip approximately
1/8” insulation off of each wire. Land each wire to
its designated screw terminal.
WIRING TO THE HVAC EQUIPMENT:
Use conventional 18-6 thermostat wire. After
removing the outer jacket, strip approximately
1/8” insulation off of each wire. Land each wire
into its designated screw terminal on the HVAC
UNIT terminals.
Note: Do not wire the equipment common to
the HVAC UNIT terminals on the panel.
INSTALLING AND WIRING THE ZPA-DTS
DISCHARGE TEMPERATURE SENSOR:
Drill a 15/32” hole in the middle of the main
discharge air plenum approximately 18” to 30”
from the heat pump electric strip heater or the
furnace heat exchanger in a fossil fuel
application. Slide the discharge air probe into the
hole and use two self-tapping sheet metal screws
to secure the base to the plenum. Use
conventional 18-2 thermostat wire and wire nuts
to attach the sensor leads. Replace the cover with
the wire nut connections inside. Strip 1/8”
insulation off of each wire at the other end and
land the wires to the screw terminals marked DA
on the panel.
INSTALLING AND WIRING THE ZPA-SPS
STATIC PRESSURE SENSOR:
The ZPA-SPS 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 ZPA-SPS is factory set for 0.35” W.C.
but is fully adjustable from 0.08” to 1.20” W.C. The
terminals are not polarity sensitive. Use 18-2
thermostat wire. After removing the outer jacket,
strip approximately 1/8” insulation off of each wire.
Land the wires to the 2 and 3 terminal on the
pressure sensor. Repeat the process on the other
end and land the wires to the screw terminals on
the panel marked SPS 2 and 3.
5
3
2
FACTORY SET
0.35” W.G.
AT
WIRE TO
SPS 2 & 3
STATIC PRESSURE
SETPOINT DIAL
5
