Support Module Installation and Wiring

The ViewStat will not display temperature or humidity (Sensor 1 or Sensor 2) values if DIP switch 6 is set to T1/T2 without wiring a sensor to the T1/T2 terminal.

If a sensor is connected to the T1/T2 terminal; DIP switch 6 MUST be set to Off or an invalid temperatures will be reported to the ViewStat.

Applications

Heat Pump Applications

If the support module is being used with a heat pump thermostat with auxiliary heat, the thermostat can be configured to disable the use of auxiliary heat during warm weather and to lock out the compressor when the outdoor temperature is too cold. This allows for the most efficient use of energy.

At warmer temperatures, a heat pump will operate much more efficiently than the auxiliary heat. It can save energy to disable auxiliary heat in some cases, for example, when returning from a setback on a mild day. The temperature above which auxiliary heat is disabled is the auxiliary lockout temperature or high balance point. Refer to the thermostat user manual for a detailed explanation.

Air-to-air heat pumps become less efficient as the outdoor temperature drops. The temperature at which it becomes more efficient to use auxiliary heat instead of the heat pump is the balance point or low balance point.

Configure the temperature sensor (T1/T2) that you are using to sense outdoor temperature to the "Monitor" mode by setting the DIP switch 3 to the "off" position and the support module address to number 1. The high and low balance points are set at the thermostat.

Humidity Control (VST-TRH only)

In order to set your thermostat up as a humidity controller, you will need at least one (up to four for averaging) VST-TRH (temperature/humidity) support module(s) wired to the thermostat.

1.Locate the VST-TRH Support Module in the area that you want to control humidity.

2.Set the T3/T4 sensor (Humidity) Input to "Control" by moving the # 4 DIP switch to the "on" position. Up to four T3/ T4 humidity sensors can be set to control and the reported values will be averaged and displayed on the thermostat.

None of the temperature sensors connected to this ViewStat can be set to control mode because a control temperature input to the ViewStat will override a control humidity input. Make sure all temperature sensors connected to this ViewStat are set to "Monitor".

3.Once the humidity control sensor(s) have been wired to the ViewStat, the thermostat display will change to indicate % RH instead of °F/°C. The thermostat mode selections will also change to reflect humidity control. The modes are "Humidify", "Dehumidify", "Humidify or Dehumidify" and "Off". Humidification/ Dehumidification set points are changed the same way that temperature control set points would be changed.

Mode of Operation Set to "Humidify"

The B terminal is continually energized in the "Humidify" mode. When the thermostat calls for humidity, the W1/HUM terminal will energize. If the minimum off time of 2 minutes has not elapsed since the previous call, no terminals will energize until it has. All energized terminals will remain energized for the minimum on time of 2 minutes.

Mode of Operation Set to "Dehumidify"

The O terminal is continually energized in the "Dehumidify" mode. When the thermostat calls for dehumidification, the Y1/DEHUM terminal will energize. If the minimum off time of 4 minutes has not elapsed since the previous call, no terminals will energize until it has. All energized terminals will remain energized for the minimum on time of 4 minutes.

ViewStat Communicating Thermostat

37

 

 

Page 42 Page 44
Page 43
Image 43
AMX ViewStat manual Heat Pump Applications, Humidity Control VST-TRH only
Page 42 Page 44

ViewStat specifications

AMX ViewStat is a revolutionary thermostat solution designed for both residential and commercial environments, providing robust control over heating, ventilation, and air conditioning (HVAC) systems. This intelligent device stands out for its user-friendly interface, advanced technology integration, and versatility in various settings.

One of the main features of AMX ViewStat is its intuitive touch screen interface, which enables users to easily navigate through settings and preferences. This 4.3-inch color display not only enhances usability but also allows for customization, offering users the ability to personalize the user experience according to their lifestyle and preferences. Whether adjusting temperature settings or scheduling heating/cooling cycles, the interface ensures a seamless interaction.

Among its key technological advancements is the integration of Wi-Fi connectivity. By connecting to a home or building's network, users can remotely access and control the thermostat through a smartphone, tablet, or computer. This level of control facilitates energy savings, as users can monitor and adjust settings from anywhere, leading to optimized usage and reduced utility bills.

AMX ViewStat is compatible with various HVAC systems, accommodating both conventional and heat pump setups. Its flexibility in adapting to different configurations makes it suitable for diverse applications, from single-family homes to large commercial spaces.

Moreover, the device incorporates advanced energy management features, granting users insights into their energy usage patterns. This data-driven approach allows users to make informed decisions about their energy consumption, ultimately promoting a more sustainable lifestyle.

In addition to its primary functions, AMX ViewStat integrates with other AMX control solutions, enabling a centralized command for home or office automation. When combined with AMX automation systems, users can achieve a fully integrated environment where lighting, security, and entertainment systems work in harmony with heating and cooling controls.

The construction of AMX ViewStat is robust yet stylish, designed to fit seamlessly into any decor. Available in multiple finishes, it adds a touch of elegance while ensuring durability and functionality.

In conclusion, AMX ViewStat is a state-of-the-art thermostat solution that offers a blend of advanced technology, ease of use, and energy efficiency. With features like remote connectivity, compatibility with various HVAC types, and integration with broader automation systems, it stands as a comprehensive solution for modern living and working environments.
Top Page Image Contents