Description
SIU Series – For commercial/industrial use only
The Economical Alternative for Hard-to-Heat Spaces
Whether you need to heat your warehouse, garage, or other hard-to-heat spaces, the Sunstar SIS/U Series infrared heaters provide both the fuel efficiency of radiant heat and the installation flexibility you need…and all at a comfortable price.
- Pull Through System
- 6 different Btu sizes and more than 60 different configurations to custom design your infrared heating system
- CSA design certified
- Available in natural and propane gas
- Optional elbows and corner reflectors
- Optional decorative grille
- Sidewall or through the roof venting
- Vented or indirect vented operation
- Includes 36″ stainless steel gas connector.
SIU Dimensions
| Model | Total Tube Length | Overall Dimensions “L” (FT) |
|---|---|---|
| SIU (50, 75) | 20′ | 12′ 9″ |
| SIU (50, 75, 100, 125) | 30′ | 17′ 9″ |
| SIU (100,125, 150, 175) | 40′ | 22′ 9″ |
| SIU (125, 150, 175) | 50′ | 27′ 9″ |
SIU Supply Requirements
| Gas Type | Burner Pressure | Supply Pressure | Voltage | Amps | Ignition Type | |
|---|---|---|---|---|---|---|
| MIN | MAX | |||||
| Natural | 3.5″ W.C. | 5″ W.C. | 14″ W.C. | 120 VAC 60 Hz | 2.4 | Direct Ignition |
| Propane | 10″ W.C. | 11″ W.C. | 14″ W.C. | 120 VAC 60 Hz | 2.4 | Direct Ignition |
SIU Minimum Mounting Heights
| Model | Height at Horizontal | Height at 45° Angle |
|---|---|---|
| SIU 50 | 11′ | 10′ |
| SIU 75 | 13′ | 12′ |
| SIU 100 | 14′ | 13′ |
| SIU 125 | 14′ | 13′ |
| SIU 150 | 15′ | 14′ |
| SIU 175 | 16′ | 15′ |
SIU Clearances to Combustibles
| Model | Side | Ceiling* | Below | End | (45°) Front | (45°) Rear |
|---|---|---|---|---|---|---|
| SIU 50 | 24″ | 6″ | 40″ | 15″ | 40″ | 12″ |
| SIU 75 | 24″ | 6″ | 60″ | 52″ | 52″ | 12″ |
| SIU 100 | 28″ | 6″ | 76″ ** | 15″ | 60″ | 12″ |
| SIU 125 | 32″ | 6″ | 82″ ** | 20″ | 66″ | 12″ |
| SIU 150 | 36″ | 6″ | 87″ ** | 20″ | 70″ | 12″ |
| SIU 175 | 42″ | 6″ | 93″ ** | 20″ | 77″ | 12″ |
*When used indirect vented, minimum clearance for Ceiling must be: 12″ for SIU 50-75, and 18″ for SIU 100-175. If optional corner and U-bend reflectors are not used, the clearance must be 18″.
**Maximum clearance below reduces by 50% once you are 25 ft. downstream from the control box.
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