J615S - Heating Hubbell - Free user manual and instructions
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| Product Type | Unit Heater |
| Model | J615S |
| Brand | Hubbell |
| Voltage | 480 V AC, 3-phase |
| Power Rating | 15 kW |
| BTU Output | 51,180 BTU/h |
| Airflow (CFM) | 2,500 CFM |
| Dimensions (W x H x D) | 24 in x 24 in x 20 in |
| Weight | 50 lb |
| Mounting | Horizontal or vertical, suspension kit included |
| Thermostat | Built-in adjustable thermostat (40-90°F) |
| Fan Motor | Permanently lubricated, thermal overload protection |
| Heating Element | Nickel-chrome alloy, open coil |
| Enclosure | Heavy-gauge steel, powder coated |
| Safety Features | Tip-over switch, overheat protection, fan delay |
| Certifications | UL listed, CSA certified |
| Warranty | 1 year limited |
| Maintenance | Clean external surfaces with damp cloth; check mounting bolts annually |
| Repairability | Replacement elements and fan motors available; modular design |
| Application | Commercial and industrial spaces, warehouses, garages |
Frequently Asked Questions - J615S Hubbell
How do I install the J615S heater?
Mount the heater securely using the provided suspension kit, ensuring clearance from combustible materials. Connect to a 480 V three-phase power supply with proper overcurrent protection. Refer to the manual for detailed wiring diagrams.
What is the recommended thermostat setting?
The built-in thermostat can be adjusted between 40°F and 90°F. Set it to your desired comfort level. For energy savings, a setting of 68°F is recommended.
How often should I clean the heater?
Clean the exterior with a damp cloth every few months. Inspect the fan and element annually for dust buildup; use compressed air to clean if needed.
The heater turns off unexpectedly. What could be wrong?
Check for overheating: ensure air intake and outlet are unobstructed. The overheat protection may have tripped. Allow the unit to cool and reset. Also verify the thermostat setting and power supply.
Can I use this heater in a wet location?
No, the J615S is designed for dry indoor locations only. Do not expose to water or excessive moisture.
What size breaker do I need for the J615S?
For a 15 kW heater at 480 V, the full load current is approximately 18 A. Use a 25 A three-pole breaker and 10 AWG copper wire per NEC guidelines.
How do I troubleshoot no heat output?
First, check if the thermostat is calling for heat and the fan is running. If fan runs but no heat, test the heating element continuity with a multimeter. A blown element will need replacement.
Can I replace the heating element myself?
Yes, replacement elements are available. Disconnect power, remove the access panel, and replace the element. Consult the manual for specific instructions. Ensure power is off.
What is the warranty period?
Hubbell offers a one-year limited warranty from date of purchase covering defects in materials and workmanship.
Is the J615S compatible with a remote thermostat?
The unit has a built-in thermostat but can be controlled by an external thermostat if wired appropriately. Consult a licensed electrician for modifications.
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USER MANUAL J615S Hubbell
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Product information
Brand : Hubbell
Model : J615S
Category : Heating