Utica Boilers HL Servicehandbuch

 

World Headquarters • 2201 Dwyer Ave. • P.O. Box 4729 • Utica, New York 13504-4729 

Ph: 315/797-1310 • Fax: 315/797-3762 • E-Mail: 

information@ecrinternational.com

 • Web: www.ecrinternational.com 

 

 

 

 

 

 

 

 

 

   

 

PRODUCTS: Utica Boilers - Hotline Series Indirect Water Heater 
FROM: ECR Technical Service Department 
Subject: Coil Change 
Models Effected: HL-30, 40, 50, 80 & 119 
 
Description of Change 

Effective immediately the HotLine Series Indirect Hot Water Heaters have changed as follows: (see illustration below) 

•  HL30, HL40 & HL50 have relocated their “boiler/coil in” and “boiler/coil out” tapings. Previously on the top, these 

connections are now on the side of the tank. 

•  All HotLine sizes (HL30 - HL119): Internal coil diameters have increased from ¾” to 1-¼”

. 

Coil connections for all 

sizes will now be 1-inch NPT. 

The change in the coil does not effect the location or size of the domestic Hot and Cold connections.

 

 
 
                            
 

 

 
 

     

 

 

 
 
 
 

 

•  Better heat transfer due to more coil surface area resulting in improved output (recovery rate) of the tank. 

•  Improved flow through coil due to lower head loss. 

 

 

Please feel free to contact our Technical Service Department at 1-800-325-5479 if you have any questions pertaining to the 
information contained in this bulletin. 

(1-inch NPT) 

(1-inch NPT)