Installation and Maintenance Manual                   IM 1311

Group: WSHP
Part Number: 910338997
Date: January 2021

Duct Static Pressure Sensor

Duct Static Pressure Sensor

Included Parts:

• Duct Pressure Sensor
• 3-pin Make Molex plug with (1 each) 12″ Blue, White, Green wires

Additional Required Parts:

• (4) #10 x ¾” self-tapping sheet metal screws
• ¼” tubing (1/8″ to 3/16″ I.D.)
• Duct pressure tap
• Minimum 3-conductor shielded 22AWG wire

Installation

• All wiring must comply with the National Electric Code (NEC) and local codes. Do NOT run any of this device’s wiring in the same conduit as other AC power wiring. Tests show that fluctuating and inaccurate signal levels are possible when AC power wiring is present in the same conduit as the signal lines. If you are experiencing any of these difficulties, please contact your Daikin representative.

Figure 1: Drill Holes Mounting Locations

• Use the sensor as a template to locate and mark the mounting holes.
• Locate the field provided duct pressure tap near the end of a long duct to ensure that all terminal box takeoffs along the run have adequate static pressure. The tap should be in a non-turbulent flow area of the duct. Keep it several duct diameters away from take-off points, bends, neckdowns, attenuators, vanes, or other irregularities that may create turbulent air flow.

Figure 2: Sensor Location In Supply Duct

• Mount sensor on the supply duct near the location selected for the duct pressure. See Figure 2.

Figure 3: Secure Sensor with Provided Screws

• Connect the blue, white and green wires to the sensor as follows: See Figure 4.

White to Vout
Green to GND
Blue to PWR

Figure 4: Connect Wires to Sensor Terminals

• Run 3-conductor wire from the sensor location to the unit. Daikin Applied recommends using shielded 22AWG for all connections. Larger gauge wire may be required for runs of greater than 250′.
• Connect the field provided tube between the tap and the high pressure (H) port on the sensor.
• The sensor has internal setting options. For proper operation the setting must be as follows: Also refer to Figure 5.

OUTPUTS = 0-10 Volts
RANGES = 3.0″/1,000PA
UNITS/RESPONSE

1: Direction = OFF = Unidirectional

2: WC or Pascales = OFF=Inches

3: Response Time = OFF=Slow

Figure 5: Sensor Operation Settings

Figure 6: Plug 3-Pin Molex Plug to Unit Control Connection, (DSP or BSP or CO2 or 0-10VDC)

Programming:

To enable use of this sensor the following configuration points must be changed. Changes can be made through the local user interface or through the ServiceTools software for Microtech® Unit Controllers program on a connected PC. For information on how to use the ServiceTools software, refer to OM 732. The local user interface menu path is shown below.

• To enable Duct Static Pressure sensing go to Service > Serv_AnaIn > Serv_AnaIn_Config > CFgAnIn16 and change the value from None to DSP. Then go to SET > Set-SensorInstall > FanRstSens and confirm that it is set to `Inst’.
• To enable fan control based on Duct Static pressure go to Set > Set-Unit > FanCntMth and change the value from CONSTANT to DSP.
• The static pressure setpoint can be adjusted under Set > Set-Fan > DSPSetPt.

If using the ServiceTools software change the unit configuration as follows:

• To enable Duct Static Pressure sensing, go to the Configuration’ menu and under theInputs’ drop down change Analog Input 16′ toDSP’. Confirm that under the Sensor Installation’ drop down,DSP/BSP/ CO2/AI Reset’ is `Installed’.
• To enable fan control based on Duct Static pressure go to the Configuration’ menu and under theFan’ dropdown set Fan Control Method’ toDSP’.
• The static pressure setpoint go to the Setpoints’ menu and under theFan’ dropdown adjust the `Duct Static Press’ value.

Click the Save button after making changes so they take effect. ServiceTools prompts you to save if you are switching to another screen without saving.
Refer to OM 1308 for additional information on duct static pressure control.

Daikin Applied Training and Development

Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department.

Warranty

All Daikin equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product Warranty. Consult your local Daikin Applied representative for warranty details. Refer to Form 933-430285Y. To find your local Daikin Applied representative, go to www.DaikinApplied.com.

Aftermarket Services

To find your local parts office, visit www.DaikinApplied.com or call 800-37PARTS (800-377-2787).
To find your local service office, visit www.DaikinApplied.com or call 800-432-1342.

This document contains the most current product information as of this printing. For the most up-to-date product information, please go to www.DaikinApplied.com.

Products manufactured in an ISO Certified Facility.

IM 1311

©2020 Daikin Applied (01/21) | (800) 432­1342 | www.DaikinApplied.com

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