Johnson Controls NXT-TSO-01 TSO Manuals
1 pdf manual(s) Johnson Controls NXT-TSO-01 TSO for free download (Document Types: Installation manual)
Johnson Controls NXT-TSO-01 TSO Installation manual [PDF] (2 pages)
- Identifier: id-2169080
- Brand: Johnson Controls
- Device: NXT-TSO-01 TSO Thermostat
- Type: PDF
- Key Aspects: Operational Mode Explanations, Best Practices for Everyday Use, Documentation and Revision History
- UPD Date: 25.08.2026
- Source File: 2118554.pdf
- Pages: 2
- Description: Manual for safe operation of the Johnson Controls NXT-TSO-01 TSO.
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INSTALLATION GUIDE Installing and Operating the NXT-TSO-01 TSO Thermostat Introduction The Temperature/Setpoint/Override (TSO) thermostat is a microcontroller- based thermostat that consists of a space temperature sensor, a knob to select the setpoint, an override push button, and an LED indicating occupancy. This thermostat allows occupants to adjust the setpoint and put the controller into Override mode. NXT-TSO-01 TSO Thermostat www.johnsoncontrols.com Figure 2 - Wiring connections for the TSO Thermostat TEC DOC # LIT-TD-2007 11/2002 Literature Part # 24-9872-7 Rev. A Figure 1 - TSO Thermostat Installation The thermostat connects to the controller via a 2-wire (#22 AWG, single twisted pair) cable. The NexSys thermostat communica- tions bus carries power and communica- tions for the TSO thermostat. Wiring WARNING - TO PREVENT ELECTRI- CAL SHOCK OR DAMAGE TO THE EQUIPMENT, YOU MUST DISCON- NECT THE POWER SUPPLY TO THE ELECTRONIC CONTROLLER BEFORE YOU MAKE THE WIRING CONNECTIONS. All wiring is low voltage and should be in accordance with local regulations and the National Electrical Code. Use shielded cable only when it is required. Most applications do not require shielding and will benefit from unshielded cable. When using the optional shielded cable, ground only one end of the shield. Low voltage control wiring should not be run in the same conduit as line voltage wiring or other conductors that supply highly- inductive loads (such as contactors, coils, motors, generators, etc.). CAUTION - MAKE ALL CONNEC- TIONS AND CHECK ALL CONNEC- TIONS BEFORE APPLYING POWER. IMPROPER WIRING MAY CAUSE PERMANENT DAMAGE TO THIS EQUIPMENT. Wiring Recommendations Unshielded Stranded, 22AWG: Belden #8442(2- wire), Belden #8444(4-wire) Plenum-rated, Stranded, 22AWG: Belden #82442(2-wire), 82444(4-wire) Stranded, 18AWG: Belden #8461(2- wire), Belden #8489(4-wire) Plenum-rated, Stranded, 18AWG: Belden #87740(2-wire), 82489(4-wire) Shielded Stranded: Belden #8761 Solid: Belden #8450 Plenum-rated, Stranded: Belden #88761other equipment. To Wire the TSO Thermostat: 1. Connect the Red wire of the thermostat’s pigtail to the STAT + terminal of the controller. 2. Connect the Black wire of the thermostat’s pigtail to the STAT - terminal of the controller. Refer to Figure 2 below. Mounting Mount the thermostat where it is exposed to normal air circulation and where it senses the average temperature of the space being controlled (normally about 5 feet above the floor). Do not mount it where it could be affected by heat or cold from windows, pipes, doors, lamps, sunlight, outside walls, or other sources. See Figure 3 for dimen- sions. Figure 3 - TSO Thermostat dimensions
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