Dayton
Dayton 5YH19 hydronic unit heater 120000 BtuH 1900 cfm
Suspended horizontal hydronic unit heater delivers 120,000 BtuH steam and 87,100 BtuH water output with 1,900 cfm airflow
- 120,000 BtuH steam output for large-space heating
- 87,100 BtuH water output at 200 °F for efficient hydronic systems
- 1,900 cfm airflow moves heat across wide areas
- Horizontal discharge suits wall or ceiling mounting
- 1½ in threaded NPT connections simplify pipe installation
Purpose and fit
The Dayton 5YH19 is a suspended horizontal hydronic unit heater designed for wall or ceiling mounting in commercial or industrial spaces. It delivers 120,000 BtuH on steam and 87,100 BtuH on 200°F water with 1,900 cfm airflow. The unit suits facilities that have a central boiler or steam plant and need directed horizontal heat distribution.
Hydronic limits
Output depends on the supply medium: 120,000 BtuH at 2 PSI steam or 87,100 BtuH at 200°F water with an 8.8 gpm flow rate. The single-phase fan draws 4.5 A at 60 Hz. Connections are 1-1/2 inch threaded female NPT. The coil uses a header design. No provision for electric heat or refrigerant circuits is included.
Build and mounting
The cabinet measures 25-1/4 inches high, 20-7/8 inches wide and 13 inches deep with an 18 inch fan behind a standard guard. Horizontal airflow means clear space is needed in front of the discharge. Threaded NPT fittings require pipe sealant and wrench access. The unit weighs enough to demand secure structural attachment to ceiling joists or wall framing.
Highlights
- 120,000 BtuH steam output for large-space heating
- 87,100 BtuH water output at 200 °F for efficient hydronic systems
- 1,900 cfm airflow moves heat across wide areas
- Horizontal discharge suits wall or ceiling mounting
- 1½ in threaded NPT connections simplify pipe installation
Specifications
| Brand | DAYTON |
|---|
Questions about this item
Should I size the heater for the 120000 BtuH steam rating or the 87100 BtuH water rating?
Choose the rating that matches your heat source: 120000 BtuH at 2 PSI steam or 87100 BtuH at 200 F water.
What does 1900 cfm mean for the space I am heating?
The fan moves 1900 cubic feet of air per minute, delivering the rated output through an 18 in fan with a standard guard.
The 1-1/2 in threaded female NPT connections — what flow rate can they handle?
The coil is designed for 8.8 gpm through the 1-1/2 in NPT connections at 60 Hz single-phase power.
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