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Honeywell EN2H-0221GE51 R0808 service manual External switching modem, HEATING, HEATING, Standby

Models: EN2H-0221GE51 R0808

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Hydraulic Components

SDC / DHC

 

 

7.3.10.4External switching modem

Function Only activated if setting 11 (external switching modem) was selected for parameter 08, 09 or 10 (variable inputs) in the "Hydraulics" menu.

This configuration allows switching between control modes via the telephone using a switching modem to be provided by the user (for holiday homes etc.).

Assignment A switching modem can be assigned to each of the three variable inputs (VI1 ... VI3). If a variable input is assigned this function, the associated parameter appears in the "System" menu for assignment of the switching modem to the respective heating circuit. The same parameters and areas are involved here as with the demand contact, i.e. the modem acts either on the direct circuit (DC), mixed heating circuit 1 (MC1), mixed heating circuit 2 (MC2), hot-water circuit (HW) or the entire system (ALL), i.e. globally on all central devices on the data bus system.

The control mode depends on the wiring at the respective variable input in the following way:

Connection terminal of variable input 1 (2, 3) open:

Control based on the current control mode (AUTO, RED.

HEATING, HEATING, STANDBY)

Connection terminal of variable input 1 (2, 3) short-circuited:

Control functions in standby mode; heating and hot water are switched off frost protected.

Connection terminal of variable input 1 (2, 3) with terminating resistor with 10 kOhm

Control based on continuous heating.

Connection terminal of variable input 1 (2, 3) with terminating resistor with 2.2 kOhm

Control based on continuously reduced operation (according to specification as reduced or switch-off mode).

NOTE Only one modem can be connected to each control device.

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Honeywell EN2H-0221GE51 R0808 service manual External switching modem, Connection terminal of variable input 1 2, 3 open
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EN2H-0221GE51 R0808 specifications

The Honeywell EN2H-0221GE51 R0808 is a versatile and efficient solution designed to enhance HVAC (Heating, Ventilation, and Air Conditioning) systems in commercial and residential settings. This device stands out in the marketplace due to its robust features, technologies, and characteristics that cater to a variety of applications.

One of the primary features of the EN2H-0221GE51 R0808 is its user-friendly interface, which allows for easy configuration and management. The device is equipped with an intuitive display that provides real-time data, enabling users to monitor system performance at a glance. This functionality not only simplifies operation but also enhances user engagement, making it an ideal choice for both novice and experienced users.

The device employs advanced control technologies, including proportional-integral-derivative (PID) control algorithms. This ensures that the HVAC system operates at optimal efficiency, maintaining the desired temperature while minimizing energy consumption. The precision of the PID control allows for smoother transitions and increased comfort levels within the environment.

Another significant characteristic of the Honeywell EN2H-0221GE51 R0808 is its compatibility with various communication protocols, including Modbus, BACnet, and more. This flexibility facilitates integration with existing building management systems, allowing for comprehensive control over heating and cooling operations. Such interoperability aids in streamlining processes and enhancing system performance.

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In summary, the Honeywell EN2H-0221GE51 R0808 is a sophisticated and reliable solution for HVAC systems. Its user-friendly design, advanced control technologies, compatibility with communication protocols, durability, energy efficiency features, and remote access capabilities make it an outstanding choice for various applications in both commercial and residential scenarios.