Carrier NSB-10K-2-D Installation and Operation Manual PDF

Duct Temperature Sensors Installation and Operation

Specifications subject to change without notice.

1 of 4 Catalog No. 11-808-630-01

#20787 10/26/20

Overview

The Duct Temperature Sensor is a passive resistive sensor. It comes in a variety of probe lengths and optional mounting enclosures shown below. The sensors come with standard accuracy.

Figure 1: Duct Unit with no box Part #s: NSB-10K-2-D-4-NB-5 (4 probe, 5 leads) NSB-10K-2-D-4-NB-10 (4 probe, 10 leads) NSB-10K-2-D-4-NB-15 (4 probe, 15 leads) NSB-10K-2-D-8-NB-10 (8 probe, 10 leads) NSB-10K-2-D-12-NB-10 (12 probe, 10 leads) NSB-10K-2-D-18-NB-10 (18 probe, 10 leads)

Figure 3: Duct Unit with BB2 Enclosure Part #s: NSB-10K-2-D-4-BB2 (4 probe) NSB-10K-2-D-8-BB2 (8 probe) NSB-10K-2-D-12-BB2 (12 probe) NSB-10K-2-D-18-BB2 (18 probe)

Figure 2: Duct Unit with BB4 Enclosure Part #s: NSB-10K-2-D-4-BB4 (4 probe) NSB-10K-2-D-8-BB4 (8 probe) NSB-10K-2-D-12-BB4 (12 probe) NSB-10K-2-D-18-BB4 (18 probe) A Pierceable Knockout Plug (Part #NSB-PKP-100) is available for the open port in the BB4.

Figure 4: Duct Unit with standard J-Box Part #s: NSB-10K-2-D-4 (4 probe) NSB-10K-2-D-8 (8 probe) NSB-10K-2-D-12 (12 probe) NSB-10K-2-D-18 (18 probe) NSB-50K-D-4-C (4 probe)

Specifications subject to change without notice.

2 of 4 Catalog No. 11-808-630-01

Duct Temperature Sensors Installation and Operation

#20787 10/26/20

Specifications Sensor Passive, NTC, 2 wire Thermistor Thermal resistor

Temp. Output Resistance Accuracy (Std) 0.36F, (0.2C) Stability < 0.036F/Year, (<0.02C/Year) Heat dissipation 2.7 mW/C Temp. Drift <0.02C per year Probe range -40 to 221F (-40 to 105C)

Sensitivity Approximate @ 32F (0C) Thermistor Non-linear

Lead wire 22AWG stranded Wire Insulation Etched Teflon, Plenum rated Probe 304 Stainless steel, 0.25 OD Probe Length 4, 8, 12, or 18" or per order Mounting Extension tabs (ears), 3/16 holes Duct Gasket 1/4 Closed cell foam

(impervious to mold)

Enclosure Types No Box (NB) Intended for open wiring J-Box (JB) With eight knock-outs BB2 box With three NPSM and three drill-outs BB4 box With three drill-outs, one open port

Enclosure Ratings No Box (NB) No rating J-Box (JB) NEMA 1 BB2 boxNEMA 4, IP66, UV Rated BB4 box IP10 (IP44 with Knockout Plug in open port)

Enclosure Material No Box (NB) Nylon 66, UL94H-B J-Box (JB) Galvanized steel, UL94H-B BB2 box Polycarbonate, UL94V-0, UV rated BB4 box Polycarbonate and Nylon, UL94V-0

Ambient (Enclosure) 0 to 100% RH, Non-condensing No Box (NB) -40 to 212F (-40 to 100C) J-Box (JB) -40 to 212F (-40 to 100C) BB2, BB4 -40 to 185F (-40 to 85C)

Agency RoHS PT= DIN43760, IEC Pub 751- 1983, JIS C1604-1989

Specifications subject to change without notice.

3 of 4 Catalog No. 11-808-630-01

Duct Temperature Sensors Installation and Operation

#20787 10/26/20

Mounting 1. Place the sensor in the middle of the duct away from temperature stratified air, coils or humidifiers to achieve

the best temperature reading. 2. Drill the probe hole as depicted on this page for the enclosure being used. Insert the probe into the duct. 3. Mount the enclosure to the duct using #8 screws through a minimum of two opposing mounting tabs. A 1/8 inch

pilot screw hole in the duct makes mounting easier through the mounting tabs. Use the enclosure tabs to mark the pilot hole locations.

4. Snug up the sensors so that the foam backing is depressed to prevent air leakage but do not over-tighten or strip the screw threads.

NOTES Do not drill into the watertight enclosureswhich will violate the NEMA and/or IP rating. Use caulk or Teflon tape for your conduit entries to maintain the appropriate NEMA or IP rating for your application. Conduit entry for outdoor or wet applications should be from the bottom of the enclosure.

Figure 5: Junction Box or No Box Mounting Holes

Figure 6: BB2 Enclosure

Mounting Holes

Figure 7: BB4Enclosure

Mounting Holes

Specifications subject to change without notice.

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Duct Temperature Sensors Installation and Operation

#20787 10/26/20

Wiring and Termination Carrier recommends using twisted pair of at least 22 AWG for runs under 100 feet, and sealant filled connectors for all wire connections. Runs from 100 to 500 feet should use shielded 22 AWG. All wiring must comply with the National Electric Code (NEC) and local codes. Do NOT run this devices wiring in the same conduit as high or low voltage AC power wiring. Tests show that inaccurate signal levels are possible when AC power wiring is present in the same conduit as the sensor wires.

To Controller Analog Input (AI) (No Polarity)

To Controller Analog Input (AI) (No Polarity)

Figure 8: 2 Wire Lead Wire Termination for Thermistor

Diagnostics Problems: Controller reports