Robertshaw: Mechanical Thermostats
Throughout its 100-year history, Robertshaw has grown to become one of the most respected brands of HVAC appliances and components, including thermostats, gas controls valves, HVAC control valves and gas water heater controls. The temperature control industry has always been a fertile ground for the manufacturer and its thermostats still keep the standards of the market up. Contractors using thermostats know firsthand that the manufacturer’s line of thermostats is the easiest to install on the market and that they are some of the most reliable thermal control components you can find today. The simplicity of the thermostats’ two-piece construction and wiring terminal blocks can actually translate into thousands of dollars per year in time saved at installation and the saves you will make on service costs.
The production line of thermostats includes three distinct series, categorized based on their usage mode. These are the mechanical thermostats, the digital thermostats and the digital programmable thermostats. Mechanical Thermostats are among the most sought-after on the market, finding good use in home, commercial and industrial HVAC systems.
The mechanical thermostats include the following series: the 9200 Series Mercury Free Deluxe Mechanical Thermostats, the 200 Series Mercury Free Mechanical Thermostats, the 400 Series Mercury Free Mechanical Thermostats, the 800 Series Mercury Free Line Voltage Mechanical Thermostats and the the 900 Series Mechanical Thermostats. Let’s take a short look at each series’ models:
The 9200 Series Mercury Free Deluxe Mechanical Thermostats include the 9200 (1 Heat, 1 Cool, Gas or Electric), 9204 (1 Heat, Gas, Electric or Millivolt) and the 9206 (1 Cool) models. These models feature bi-metallic temperature indicators, O & B terminals and are 24 VAC and J-Box compatible. The 9200 and 9206 models have a system and fan switch, while the 9600 features a unique 4700 Ohm Fixed Cooling Anticipation system. The Robertshaw 9200 Mercury Free Deluxe Mechanical Thermostat series are available in both horizontal and vertical models, thus making them perfect for a comfortable and easy installation.
The 200 and 400 Mercury Free Mechanical Thermostats include 16 models, 8 for the 200 Series and 8 for the 400. The Robertshaw 200 Series models are as follows: 200-401 – 2 wire, 24V, 200-402 – 2 wire, 24V, Positive Off, 200-499 – 2 wire, 24V Zone, 200-501 – 2 wire, Millivolt, 200-502 – 2 wire, Millivolt, Positive Off, 200-901 – 3 wire, 24V, Zone, 200-403 – 2 wire, 24V, Low Temperature Dial and the 200-503 – 2 wire, Millivolt, Low Temperature Dial model. The 400 Series includes the following models: 400-400 – 24V, 1 Heat/1 Cool, Gas, 400-402 – 24V, 1 Heat/1 Cool, Electric, 400-403 – 24V, 1 Heat/1 Cool, Gas Low Temperature Dial, Robertshaw 400-404 – Millivolt, 400-420 – 24V, 1 Heat/1 Cool, Gas, 400-421 – 24V, 1 Heat/1 Cool, Electric, Robertshaw 405-420 – 24V, 1 Heat/1 Cool, Gas and the 405-422 – 24V, 1 Heat/1 Cool, Electric model. Both series offer sealed switch contracts that allow for maximum performance, adjustable heat anticipation and a cooling anticipation of 4700 Ohms.
The 800 Series of Mercury Free line Voltage Thermostats offers four models of thermostats, which differ in their type of temperature control and the switch action. The 800 and 801 models are built for heating applications and the switches that operate them are single pole single throw (SPST). The 802 model is also used in heating systems, but it offers a double pole single throw switch (DPST). The last model, the 803 thermostat is used in cooling applications and holds a single pole single throw switch. Some of the benefits of using the Robertshaw 800 series of thermostats, include a convenient temperature display system, a bi-metal temperature sensing feature, they are mercury free so no leveling or special disposal is required and they are J-box compatible. The Robertshaw 800 Series replace the obsolete Robertshaw 500 thermostats.
Last but not least, the Robertshaw 900 series include three models: the Robertshaw 988-1, 1 Heat/1 Cool, Gas and Electric, the 986-1, 1Heat, Gas and Electric and the Robertshaw 984-1, 1 Cool. These models feature 24 VAC system compatibility, 0.1 to 1.2 Amp Heat anticipation, a system and fan switch and they are J-box compatible. The 900 series mechanical thermostats are made up from a simple two-piece design, so that you will save a lot of time at installation. The large display offers extremely accurate room temperature measurement and the wall plates are also available to mask any unsightly marks left by previous thermostats. All three models include a sealed mercury switch, which is used with the built-in thermometer that accurately displays the room temperature. They also have an adjustable heat anticipator, which allows their use on a large range of heating and cooling HVAC equipments.
If you want to order any kind of Robertshaw mechanical thermostats or any other Robertshaw HVAC component, tool or accessory, you have come to the right place. HVAC Plus offers a complete list of the manufacturer’s products, since we act as a Robertshaw wholesaler, distributing their products all over the world. The parts you order come straight from the manufacturer, so you can rest assure their quality will not be diminished by having to pass through us, nor will the price be wrangled. Use our online ordering system to the left and get the HVAC component you require in a matter of days.
