FIELD CONTROLS

The Field Controls Power Venter and DI-1 are both pipe-mount exhaust draft inducers, but they differ in construction and included accessories. Power Venter models, such as those with SKU 45DX30, 45DX25, 45DX27, 45DX24, and 45DX28, typically include a two-piece backing plate and may have a steel or stainless steel wheel. The DI-1, SKU 45DX35, includes a pressure sensing tube and a steel wheel, and is designed for oil-fired furnaces, boilers, and water heaters. Current draws range from 0.43 A for the DI-1 to 2.1 A for some Power Venter models. Pipe size compatibility also varies: the DI-1 fits 3 in to 6 in pipe, while other models cover specific ranges such as 3 in to 4 in or 5 in to 6 in. Always verify the required pipe size and electrical specifications for your application.

Field Controls draft inducers in the 3G Electric catalog operate on 115V AC, 60 Hz, single phase. Current draw varies by model: the DI-1 (SKU 45DX35) draws 0.43 A, while models like SKU 45DX25 draw 1.3 A, SKU 45DX30 and 45DX24 draw 1.7 A, and SKU 45DX27 and 45DX28 draw 2.1 A. These ratings are important for ensuring the circuit can handle the load and for selecting the correct wiring and overcurrent protection. The fresh air ventilation control FCMC operates on 24V AC, which is typical for control circuits. The energy-recovery ventilator FC-150EC-ERV uses 120V AC with a plug-in connection. Always confirm the electrical specifications match your power supply and control system.

The Field Controls FC-150EC-ERV residential energy-recovery ventilator includes an exhaust-only defrost type. This means that in cold conditions, the unit temporarily stops the intake of fresh air to allow the core to warm up and prevent frost formation. The defrost strategy is a critical specification for cold-climate installations. The unit delivers 145 cfm at 0.400 in SP and has a maximum efficiency of 84%. It operates on 120V AC with variable speed control. When selecting an ERV for cold climates, verify that the defrost type and temperature range are suitable for the expected outdoor conditions. The FC-150EC-ERV is designed for residential applications and should be installed according to the manufacturer's instructions and local codes.

The Field Controls FCMC is a fresh air ventilation control that regulates ventilation systems based on outdoor temperature. It uses a single-pole double-throw (SPDT) switch and operates on 24V AC. The control senses temperatures from -20°F to 150°F, allowing it to activate or deactivate ventilation equipment in response to outdoor conditions. This is useful for preventing excessive cold air from entering a building during extreme temperatures or for ensuring adequate ventilation when conditions are mild. The FCMC includes a cover, mounting plate, and screws. It is typically used in residential or light commercial HVAC systems to manage fresh air intake and improve indoor air quality while minimizing energy loss. Installation should follow the manufacturer's wiring diagrams and local codes.

Field Controls pipe-mount draft inducers are available for a range of pipe sizes. The DI-1 (SKU 45DX35) fits 3 in to 6 in pipe. Other models have specific ranges: SKU 45DX30 and 45DX24 fit 3 in to 4 in pipe; SKU 45DX25 fits 4 in to 5 in pipe; SKU 45DX27 and 45DX28 fit 5 in to 6 in pipe. The correct pipe size depends on the flue or vent pipe diameter of the appliance. Using the wrong size can lead to improper draft, reduced efficiency, or unsafe operation. Always measure the pipe diameter and consult the appliance manufacturer's recommendations before selecting a draft inducer. The inducer should be sized to handle the flue gas volume and static pressure requirements of the system.

Some Field Controls draft inducers in the 3G Electric catalog are listed to safety standards. For example, SKU 45DX24 and SKU 45DX28 are UL Listed, and SKU 45DX35 is cETLus Listed. These listings indicate that the products have been evaluated to applicable safety requirements. However, not all models may carry the same listings. When specifying a draft inducer, verify that the product has the appropriate listing for your jurisdiction and application. The listing information is typically marked on the product nameplate and included in the technical documentation. 3G Electric provides this information in the product specifications to assist with compliance and procurement.