HeatMaster® Ultra Motors
The Heatmaster® Ultra motor is a 48‐frame, PSC, totally enclosed, condenser fan replacement motor suitable for all major brands of HVAC equipment. The motors are specially designed and constructed to handle the higher temperatures that can occur when PSC motors are applied with speed controls.
Features
- Speed Engineered motor for head pressure - speed controls
- Class F Insulation
- 80°C (176˚F) max ambient
- Double sealed ball bearings with high-temperature synthetic grease
- Mounts by belly band, adjustable extended thru-bolts, or mounting holes
Benefits
- 3-year warranty from the date of manufacture or 2 years from the date of installation.
- Motors built to withstand low speed operation using a head pressure fan speed control and still not overheat or trip the internal protector.
Applications
- Residential HVAC condenser fans
- Commercial refrigeration condenser fans
Related Documents
Designed and Engineered for Use with Head Pressure – Speed Controls
- Head pressure fan speed controls; while offering advantages of greater control and system efficiency for commercial HVAC and refrigeration motor applications, could cause premature motor failures in motors not designed specifically for their use.
- Our Speed Engineered HeatMaster Ultra motors are specially designed and constructed to handle the higher temperatures that can occur when PSC motors are applied with speed controls. Our Speed Engineered motor solution adds features to reduce nuisance trip outs, bearing failures and premature winding failures.
- Air at high altitude is less dense than air at sea level, reducing its convective capability and overall heat capacity. All electric devices that rely on natural or forced convection to dissipate heat will experience greater air and component temperature rises for the same amount of power at high altitudes. HeatMaster Ultra motors are UL recognized components for 80°C ambient conditions which make them good candidates for these applications.
- Multiple mounting holes predrilled in the shell and lead end, end frame for easy mounting. Mounting screws provided as an added convenience.
- Class F insulation, high temperature thermal overload protectors and high torque designs mean HeatMaster Ultra motors will handle extreme applications that typical PSC motors cannot withstand.
- Water-resistant reversing plug for quick and easy rotation change.
- Totally enclosed motors suitable for all angle mounting.
- Optimum winding design minimizes losses resulting in higher efficiencies, increased motor life and lower operating cost.
- Continuous duty, air over.
Additional Data
Class F insulation- 80°C (176°F) max ambient
| Stock Number | HP | Volts | AMPS | RPM | Speeds | Frame Size | Rotation | Capacitor | Bearings | Shell Length | Shaft | Wt. |
| *FE1008SU | 1/8 | 208-230 | 1.0 | 825 | 1 | 48 | Reversible | 5MFD/370V | Ball | 4.24" | 1/2" X 6-1/2" | 11.0 |
| FE1028SU | 1/4 | 208-230 | 1.2 | 825 | 1 | 48 | Reversible | 5MFD/370V | Ball | 4.61" | 1/2" X 6-1/2" | 15.0 |
| FE1038SU | 1/3 | 208-230 | 1.6 | 825 | 1 | 48 | Reversible | 7.5MFD/370V | Ball | 5.11" | 1/2" X 6-1/2" | 15.3 |
| *FE1016SU | 1/6 | 208-230 | 1.4 | 1075 | 1 | 48 | Reversible | 5MFD/370V | Ball | 3.99" | 1/2" X 6-1/2" | 11.0 |
| FE1026SU | 1/4 | 208-230 | 1.9 | 1075 | 1 | 48 | Reversible | 5MFD/370V | Ball | 4.36" | 1/2" X 6-1/2" | 13.0 |
| FE1036SU | 1/3 | 208-230 | 2.5 | 1075 | 1 | 48 | Reversible | 7.5MFD/370V | Ball | 4.86" | 1/2" X 6-1/2" | 15.9 |
| FE1056SU | 1/2 | 208-230 | 3.8 | 1075 | 1 | 48 | Reversible | 10MFD/370V | Ball | 5.36" | 1/2" X 6-1/2" | 18.0 |
| FE1076SU | 3/4 | 208-230 | 5.1 | 1075 | 1 | 48 | Reversible | 15MFD/370V | Ball | 5.61" | 1/2" X 6-1/2" | 18.3 |
| FEH1026SU | 1/4 | 460 | 0.9 | 1075 | 1 | 48 | Reversible | 7.5MFD/370V | Ball | 4.74" | 1/2" X 6-1/2" | 12.7 |
| FEH1036SU | 1/3 | 460 | 1.2 | 1075 | 1 | 48 | Reversible | 7.5MFD/370V | Ball | 5.24" | 1/2" X 6-1/2" | 15.4 |
| FEH1056SU | 1/2 | 460 | 1.5 | 1075 | 1 | 48 | Reversible | 10MFD/370V | Ball | 5.61" | 1/2" X 6-1/2" | 19.0 |
| FEH1076SU | 3/4 | 460 | 2.2 | 1075 | 1 | 48 | Reversible | 10MFD/370V | Ball | 6.11" | 1/2" X 6-1/2" | 22.8 |
* Item to be discontinued when stock is depleted.
NEMA® Insulation Class Comparison
| Temperature | Class A | Class B | Class F |
| 200° | |||
| 150° | 125° C | 150° C | |
| 100° | 105° C | 60° C(140° F)* | 80° C (175° F)* |
| 50° | 40° C(104° F)* | ||
| 0° |
*Ambient Temperature
*Total Motor Operating Temperature
4-in-1® Motors
Multi-Horsepower Replacement Motors
One simple connection. Each Century 4-in-1 motor is designed to replace four different horsepower motors with just one simple line connection. No need to change capacitors or select different speed taps. 2 motors will replace 16 different OEM motors in both 6 pole and 8 pole designs with one capacitor size and one line connection.
| Stock Number | HP | Volts | AMPS | RPM | Speeds | Frame Size | Rotation | Capacitor | Bearings | Shell Length | Shaft | Wt. |
| ORM5488BU | 1/3-1/8 | 208-230 | 1.8 | 825 | 1 | 48 | Reversible | 7.5MFD/370V | Ball | 4.86" | 1/2" X 6-1/2" | 15.8 |
| *ORM4688BU | 1/3-1/8 | 460 | 1.0 | 825 | 1 | 48 | Reversible | 7.5MFD/370V | Ball | 5.24" | 1/2" X 6-1/2" | 17.0 |
| ORM5458BU | 1/3-1/6 | 208-230 | 1.9 | 1075 | 1 | 48 | Reversible | 7.5MFD/370V | Ball | 4.11" | 1/2" X 6-1/2" | 11.8 |
* Item to be discontinued when stock is depleted.