Dayton
Dayton 4HZ70BG HVAC Control 1/3 HP 850 RPM 115V 48Y
Permanent split capacitor motor delivers 1/3 hp at 850 RPM on 115 V AC for continuous-duty HVAC fan and blower applications
- 1/3 HP output powers demanding HVAC systems
- 850 RPM single-speed design simplifies installation
- 115 V AC supply fits standard building wiring
- Auto thermal protection prevents overheating damage
- Open air-over enclosure enables all-angle mounting
Motor Specifications
The Dayton 4HZ70BG is a permanent split capacitor motor rated at one-third horsepower and 850 RPM. It operates on 115V AC single-phase power at 60 Hz with a full-load draw of 4.1 amps. The 48Y frame and three-inch shaft with a five-eighths inch diameter suit direct-drive fan and blower applications in HVAC equipment.
Open Enclosure Design
The open air-over enclosure requires airflow from the driven fan for motor cooling, replacing only motors with the same ventilation method. The stud mounting arrangement and all-angle orientation provide flexible installation when the replacement matches these mechanical constraints. Auto thermal protection and Class B insulation support continuous duty within a 40 °C maximum ambient temperature.
Service Limits
The motor delivers its rated output continuously at the nameplate speed and voltage with a service factor of one. Counter-clockwise shaft rotation viewed from the shaft end is fixed, so the driven load must match this direction. It is not suited for variable-speed control, multi-speed requirements, or environments exceeding the stated temperature limit.
Highlights
- 1/3 HP output powers demanding HVAC systems
- 850 RPM single-speed design simplifies installation
- 115 V AC supply fits standard building wiring
- Auto thermal protection prevents overheating damage
- Open air-over enclosure enables all-angle mounting
Specifications
| Brand | DAYTON |
|---|
Questions about this item
What frame size and shaft dimensions does the 48Y motor use for mounting?
The motor uses a NEMA 48Y frame with a 5/8 in. diameter shaft that extends 3 in. from the face, and it mounts via studs in any orientation.
How do I wire the permanent-split-capacitor motor correctly on a 115 V supply?
Connect the 115 V AC line to the motor leads and the supplied capacitor; the motor draws 4.1 A at full load and rotates CCW when viewed from the shaft end.
When should I expect to replace the bearings on this continuous-duty motor?
With Class B insulation and a 40 °C max ambient, bearings typically last several years in continuous operation; inspect for noise or excess heat and replace when wear appears.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
