Switch / Relay Output HVAC Controllers
from Glas-Col, LLC
Two series RL control choices are available: percentage timer or proportional voltage. The percentage timer version pulses full line voltage to each heating position according to the dial setting. The proportional voltage version supplies a constant, steady-state voltage to each position. The six... [See More]
- Control Signal: Switched Output
- Control: Limit
- Controller Type: HVAC
- Features: Rate Indication/ Control
from Taco Comfort Solutions
The Taco Hydro Air Fan Control is the ideal interface between the thermostat and air handler that will increase year-round comfort and operating efficiency in your systems. The Hydro Air Fan Control also includes an isolated end switch to start the boiler or pump. When the thermostat calls for heat,... [See More]
- Control Signal: Switched Output
- Features: PC-Based
- Controller Type: HVAC
from Enervex, Inc.
The ENERVEX ADC100 Fan Control is used to control draft in simple fireplace systems where modulation is not required. It controls the speed of the fan to maintain proper draft in the chimney. The control can be used with Models RS and GSV, and is typically used to control the draft of a gas-fired... [See More]
- Control Signal: Analog Voltage Output; Switched Output
- Control: PID
- Controller Type: HVAC
- Form Factor: Chassis
from OMEGA Engineering, Inc.
The Omega ® DPiTH and CNiTH Series instruments monitor and control both temperature and relative humidity. All meters and controllers in the series are high quality, highly accurate instruments featuring Omega's award-winning iSeries technology, uncompromising accuracy, and Made in the U.S.A. [See More]
- Control Signal: Analog Voltage Output; Switched Output; Pulse / Frequency; Serial / Digital; Network / Fieldbus Output; RS232/485, IEEE 802.3
- Control: Limit
- Controller Type: HVAC
- Features: Rate Indication/ Control
from Taco Comfort Solutions
Taco Zone Valve Controls simplify the wiring nightmare. They work with 2-, 3- or 4-wire zone valves and their easy-to-follow PC board layout eliminates the problems caused by incorrect wiring and the “unfinished ” look of conventional zone valve installations. External indictor lights... [See More]
- Control Signal: Switched Output
- Features: PC-Based
- Controller Type: HVAC
from Enervex, Inc.
The EXHAUSTO EBC 8 Fan Control is used to control draft in simple heating systems where modulation is not required. It controls the speed of the fan to maintain proper pressure in the chimney. The control can be used with EXHAUSTO Models RSV, IPVB and RSIF. The EBC 8 is typically used to control the... [See More]
- Control Signal: Analog Voltage Output; Switched Output
- Control: PID
- Controller Type: HVAC
- Form Factor: Chassis
from OMEGA Engineering, Inc.
The CN8240/CN8260 1/8 DIN vertical and 1/4 DIN temperature/ process controllers are extremely versatile and user-friendly. The operator needs to review only those parameters relevant to the particular application during setup. A dual digital display offers optimum process information at a glance. [See More]
- Control Signal: Analog Voltage Output; Switched Output; Pulse / Frequency; Serial / Digital; RS232/485
- Control: Limit; PID
- Controller Type: HVAC
- Features: Rate Indication/ Control
from Enervex, Inc.
The EBC 12 Modulating Pressure Control is a draft and pressure control device that can monitor and maintain a constant draft or pressure by varying the speed of an exhaust fan. It is a true PID-based control with infinitely variable speed settings. The EBC 12 is typically used in applications with... [See More]
- Control Signal: Analog Voltage Output; Switched Output
- Control: PID
- Controller Type: HVAC
- Form Factor: Chassis
from OMEGA Engineering, Inc.
The CN700 Series thermocouple FM approved high limit controllers provide audible alarm status along with a robust 15 amp relay output. Unit allows the user to easily select automatic or manual reset along with 10 other parameters. The CN700 series has a built in reset button on the front panel or... [See More]
- Control Signal: Switched Output
- Control: Limit
- Controller Type: HVAC
- Features: Rate Indication/ Control
from Enervex, Inc.
The EBC 30 Modulating Pressure Control is a draft and pressure control device that can monitor and maintain a constant draft or pressure by varying the speed of a fan or the position of an actuator. The control is capable of controlling multiple functions simultaneously. It could be exhaust fan and... [See More]
- Control Signal: Analog Voltage Output; Switched Output
- Control: PID
- Controller Type: HVAC
- Features: Multi-Function
from OMEGA Engineering, Inc.
The CN3101 is a compact, fully programmable high or low limit controller. It is UL listed and has FM approval as a limit controller. With user programmable inputs, outputs and high/low limit features, it is adaptable to almost any limit control application, and can easily be reconfigured as needed. [See More]
- Control Signal: Analog Voltage Output; Switched Output; Serial / Digital; RS232/485
- Control: Limit (optional feature); Fuzzy Logic (optional feature)
- Controller Type: HVAC
- Features: Multi-Function; Rate Indication/ Control
from Enervex, Inc.
The EBC 35 Modulating Pressure Control is a draft and pressure control device that can monitor and maintain a constant draft or pressure by varying the speed of a fan or the position of an actuator. The control is capable of controlling multiple functions simultaneously. It could be exhaust fan and... [See More]
- Control Signal: Analog Voltage Output; Switched Output
- Control: PID
- Controller Type: HVAC
- Features: Multi-Function
from OMEGA Engineering, Inc.
bull;. Now with. Embedded Internet (EI Option CNi16D Series). •. First Full Series of Instruments with. Programmable Color Displays. •. User Friendly, Simple to Configure. •. High Quality! 5-Year Warranty Std. •. Free Software, Active X Controls. •. Selectable Full Autotune... [See More]
- Control Signal: Analog Voltage Output; Current Loop Output; Switched Output
- Control: Limit; PID
- Controller Type: HVAC
- Features: Multi-Function; Rate Indication/ Control