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EMBLEM

®

 OVERVIEW

 - The EMBLEM

®

 is a boiler heating system that interconnects a condensing boiler 

with a non-condensing boiler and uses a control algorithm to fire each or both boilers as necessary to meet 
the building heat requirements while providing maximum efficiency throughout the heating season.  
 
During periods of low to medium building heat demand, whether seasonal or occupancy driven or both, 
significant fuel savings can be realized by reducing the boiler loop temperature. A condensing boiler offers 
the greatest value to building owners when loop temperatures are low enough (< 130°F) to allow the water 
vapor in flue products to condense inside the boiler where the latent energy (heat) of condensation is 
captured. The condensing boiler in the EMBLEM

®

 system is sized to meet the output requirement during low 

to medium heat demand. Because it captures the latent heat released during condensation, thermal 
efficiency ranges from 93% to 99% depending upon return water temperature and firing rate. A modular 
arrangement of non-condensing boilers, even with modulation, is unable to capture this heat and, as a 
result, is less efficient.  
 
During periods of higher building heat demand, loop temperatures are normally elevated and are too high to 
allow condensing of flue gases. As a result, firing additional condensing boilers with loop temperatures 
greater than 130°F offers little efficiency advantage compared to non-condensing boilers. When heat 
demand and loop temperatures are high, the EMBLEM

®

 system engages a non-condensing boiler to 

supplement heat output. Although non-condensing, the secondary boiler in the EMBLEM

®

 system still 

operates at relatively high efficiency of 85%. The combined output of each boiler in the EMBLEM

®

 system 

meets building demand during the coldest days of the heating season. 
 
Over the heating season, the average output of a boiler system is approximately 35% of its total heating 
capacity. Such oversizing is unavoidable because of the few unusually cold days when maximum heating 
system output is essential to building comfort. EMBLEM

®

 intelligently combines boilers of different 

efficiencies and fires those boilers when appropriate during the heating season to meet all heat 
requirements and maximize fuel savings for the building owner. 

 
 

 
 
 
 

 
 
 
 
 
 
 
 
 
 

 

Riverside Hydronics

®

, LLC  -  990 Haltom Road  -  Fort Worth, Texas  76117  -  Tel 1-800-990-5918 

WARNING: Improper installation, adjustment, alteration, service or maintenance can cause property 
damage, personal injury, exposure to hazardous materials or loss of life.  Refer to and follow the information 
contained in this manual, the PRIMERA

®

 I&M, the EPV

®

 I&M, all provided documents labels and warnings.  

Installation and service must be performed by a qualified installer, service agency or the gas supplier, who 
must read and follow all supplied instructions before installing, servicing or removing these appliances. 

 

CONTENTS 

 

TOPIC 

 

PAGE 

 

TOPIC 

  PAGE 

 

General Safety Warnings and Codes 

 

1 & 2 

Heating Boiler System Piping 

5  

 
EMBLEM

®

 Overview  

 

Piping Illustration 

6  

 
Electrical and Water Connections 

 

Water Considerations 

 
Operation and General Information 

 

4  

Lead/Lag Systems 

8-10 

 
General Information 

 

 

 

Summary of Contents for Emblem

Page 1: ...structions must be given to the equipment user or left near the appliance Refer to I M documents 34 50 34 501 and 34 502 for additional important information SPECIAL INSTRUCTIONS TO THE OWNER Retain t...

Page 2: ...res are high the EMBLEM system engages a non condensing boiler to supplement heat output Although non condensing the secondary boiler in the EMBLEM system still operates at relatively high efficiency...

Page 3: ...n from the system water to be heated to the Inlet of the EPV boiler Connect the Outlet to the supply side of the system hot water out of the unit FILLING THE UNIT 1 Fill the system with water To be su...

Page 4: ...1 St1 parameter is the first to be displayed Press the Set key again and adjustment is enabled Use the arrow keys to adjust the set point 1 to the desired system temperature and press the set key agai...

Page 5: ...the inherent flexibility of the EMBLEM system The Primary Only System is generally not applied with modern PRIMERA boiler systems due to the need to maintain a constant flow rate through the boiler Th...

Page 6: ...6 Riverside Hydronics LLC 990 Haltom Road Fort Worth Texas 76117 Tel 1 800 990 5918...

Page 7: ...t always the case Untreated make up water is a leading cause for failures of hat water boilers Provisions must be made for properly introducing metering and treating make up water Below are some consi...

Page 8: ...he E series parameters are divided into 10 minute increments The E1 parameter is Sunday The S series parameters are the ending point for the programmed shift in set point The S series parameters are d...

Page 9: ...1 160 E2 0 0 S2 6 0 Sb2 25 LEAD LAG CONTROL OPTION 2 The lead lag and outdoor reset function is managed by a third party Boiler Management System BMS or building Energy Management System EMS This mann...

Page 10: ...ata Function Code Code of the desired function 0X06 Register Address The address of the first register to be read Set point 1 St1 has a register address of 768 Data The data to write CRC Defines the C...

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