Blog
CPU-1000 Expandable Boiler Control by HBX Controls
CPU-1000 - Central Processing UnitSimple to install and understand but integrated with "Behind the Scenes" sophistication to tackle the toughest HVAC design applications. Intentionally built with both the installer and end-user in mind. The HBX CPU-1000 is a fully integrated control unit based on indoor/outdoor reset technology. This intelligent controller used a PID algorithm, that learns and adapts itself to both the external and internal environment making adjustments to the heating or coolin
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2024 Apr 18th
Adjusting the Trip Point on the ECM Current Switch: a Quick Step-by-Step Tutorial
Adjusting the trip point of ACI's new ECMCS25-A current switch is a bit different than other current switches. In this guide, we'll walk you through the calibration process step by step, ensuring your ECM motor status indication is spot on.Calibration Steps:
Power Up in Standby Mode: Start by turning on the ECM motor but keeping it in the "standby" position – powered but not turning.Clockwise Adjustment: Rotate the screw clockwise slowly to lower the trip point until the light on the TRIP ADJUS
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2024 Apr 18th
How to Field Calibrate Humidity Sensors
ACI’s A/RH Duct Series Sensor is a Relative Humidity Transmitter designed for use with electronic controllers in commercial HVAC building management systems. The RH Duct Transmitter can be powered with either AC or DC supply voltage and is field selectable with a 4-20 mA, 0-5 VDC, or 0-10 VDC output signal that is equivalent to 0 to 100% RH.Calibration Although ACI sensors are designed and engineered to drift less than other competitive humidity sensors on the market, over time, factors like env
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2024 Apr 18th
Siemens SS Series Room Actuators Overview
Valve Product FamilyPowermite MZGlobe ValvesPowermite MTGlobe ValvesModelSSB161.05USSB131.09USSC161.05USSC161.35USSC131.09USSC131.39UOrderable Part NumberS55180-A151S55180-A150S55155-A110S55155-A111S55155-A108S55155-A109Replaces Part NumberSSA61USSB81USSC61USSC61.5USSC81USSC81.5UValve/Actuator Assembly Prefix255254261262259260AvailabilityNowFutureNowFutureFutureFutureControl Signal Type0-10VFloating0-10V0-10VFloatingFloatingSupply VoltageAC 24 V (±15%) or
DC 24 V (±20%)AC 24V(+/-20%)AC 24 V (±1
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2024 Apr 16th
KMC CONTROLS MEP-4200/4500/4900 Series Fail-Safe, Direct-Coupled, Actuators (25/45/90 in-lb.)
Description and Application These compact but powerful direct-coupled ControlSet® actuators provide two-position, tri-state, or
proportional control for dampers or valves in HVAC
systems. Efficient, durable, capacitor-driven fail-safe
with switch-selectable direction provides consistent torque in both powered and fail-safe modes.
A patented noise reducer provides whisper-quiet
operation in both modes. A minimum torque of 25
(MEP-42xx), 45 (MEP-45xx), or 90 (MEP-49xx) in-lb.
is availa
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2024 Apr 16th