{"product_id":"s963b1128-honeywell-manual-potentiometer-135-ohm-series-90-outlet-box-mount","title":"S963B1128 | Honeywell Manual Potentiometer 135 Ohm Series 90 Outlet Box Mount","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"86\" data-end=\"424\"\u003eThe Honeywell S963B1128 is a 135-ohm manual potentiometer designed for use with Series 90 control systems. It simulates heating, cooling, and economizer signals for testing and calibration purposes, providing accurate voltage ramp outputs and reliable manual adjustment within HVAC and economizer applications.\u003c\/p\u003e\n\u003ch3 data-start=\"502\" data-end=\"534\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%; height: 548.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eHVAC Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eS963B1128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eManual Potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eResistance Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003e135 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 39.2px;\"\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 39.2px;\"\u003eSeries 90 Control Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eManual Control \/ Signal Simulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 39.2px;\"\u003e\u003cstrong\u003eVoltage Output Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 39.2px;\"\u003e\u0026lt;2 VDC (min) to 16.6 VDC (max) for Heat\/Cool Ramp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 39.2px;\"\u003e\u003cstrong\u003eEconomizer Signal Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 39.2px;\"\u003e4.0 VDC to 4.5 VDC (equivalent to 45°F to 69°F \/ 7°C to 21°C at C7046 Sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 39.2px;\"\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 39.2px;\"\u003eTwo Potentiometers and Resistor Assembly in Test Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eVertical, for 2 × 4 in. Outlet Box (≥1-3\/4 in. deep)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 39.2px;\"\u003e\u003cstrong\u003eTerminal Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 39.2px;\"\u003eFour Color-Coded Test Lead Wires with Alligator Clips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 39.2px;\"\u003e\u003cstrong\u003eLeadwire Identification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 39.2px;\"\u003eColor bands correspond to W973 terminal numbers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eOperation Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eManual, Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eScale Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eOpen\/Close Scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eSimulates Thermostat and Economizer Functions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eMetal Test Box Enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 39.2px;\"\u003e\u003cstrong\u003eDimensions (H × W × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 39.2px;\"\u003e4-1\/4 in × 2-3\/4 in × 2-5\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003e1.92 oz (0.12 lbs \/ 0.054 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 25.6162%; height: 19.6px;\"\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 74.2507%; height: 19.6px;\"\u003eUL Recognized, Industrial Grade Construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eS963B1128\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe S963B1128 is part of Honeywell’s Series 90 line of precision control accessories, specifically engineered for calibration and system testing. It simulates the HEAT and COOL ramp signals of a T7067 Dual Set Point Thermostat, as well as the economizer low limit function for W973 controllers. Using dual potentiometers and an internal resistor assembly, it generates controlled DC voltage ramps—ranging from under 2 VDC to 16.6 VDC—to replicate thermostat outputs and verify proper actuator response. The unit also produces an economizer low limit voltage range of 4.0 to 4.5 VDC to simulate specific discharge air temperatures. Compact and easy to mount, the S963B1128 features color-coded test leads with alligator clips for quick connection to W973 terminal points, making it a reliable tool for maintenance and diagnostics in HVAC systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrecise 135-Ohm Resistance: Ensures stable and accurate manual control signal simulation for Series 90 systems.\u003c\/li\u003e\n\u003cli\u003eDual Potentiometer Design: Provides independent adjustment for heat\/cool ramp and economizer functions.\u003c\/li\u003e\n\u003cli\u003eVoltage Signal Simulation: Delivers output voltages from \u0026lt;2 VDC to 16.6 VDC for testing thermostats and actuators.\u003c\/li\u003e\n\u003cli\u003eEconomizer Testing Capability: Generates 4.0–4.5 VDC output corresponding to 45°F–69°F discharge sensor simulation.\u003c\/li\u003e\n\u003cli\u003eConvenient Test Leads: Equipped with four color-coded alligator clip wires for fast terminal connection.\u003c\/li\u003e\n\u003cli\u003eCompact Outlet Box Mount: Designed for vertical mounting on standard 2×4-inch outlet boxes for field or lab use.\u003c\/li\u003e\n\u003cli\u003eDurable Metal Housing: Protects internal components from damage and ensures long service life.\u003c\/li\u003e\n\u003cli\u003eEasy Field Calibration: Enables HVAC technicians to simulate control conditions during troubleshooting or setup.\u003c\/li\u003e\n\u003cli\u003eBroad System Compatibility: Works with Honeywell W973 and other Series 90 controllers.\u003c\/li\u003e\n\u003cli\u003eLightweight and Portable: Weighs less than 2 ounces for convenient field use and storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe S963B1128 delivers the reliability and precision required for testing and calibration in Series 90 HVAC systems, allowing accurate simulation of thermostat and economizer control signals in maintenance and diagnostic operations.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105124589824,"sku":"S963B1128","price":1051.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/CC-TDOR11_23_da2ae08b-a014-49a7-bd61-0e76833b4238.png?v=1785540803","url":"https:\/\/alotechparts.com\/products\/s963b1128-honeywell-manual-potentiometer-135-ohm-series-90-outlet-box-mount","provider":"Alo Tech Solutions","version":"1.0","type":"link"}