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ELECTRO-BOILER
INSTALLATION & OPERATING INSTRUCTIONS
APPLICATION:
ACCESSORIES:
IMPORTANT:
Note:
This product meets the requirements of the ASME Boiler and Pressure Vessel Code.
Conforms to: UL STD.UL834
Certified to: CSA STD.C22.2#165
DO NOT DESTROY THIS MANUAL. PLEASE READ CAREFULLY AND KEEP IN A SAFE
PLACE FOR FUTURE REFERENCE BY A SERVICE TECHNICIAN.
01/11/2022
EZB-Edge
Model:
EZB-E1/4-05-240-1
EZB-E1/4-07-240-1
EZB-E1/4-10-240-1
EZB-E1/4-12-240-1
EZB-E1/4-15-240-1
EZB-E1/4-17-240-1
EZB-E1/4-20-240-1
The EZB-Edge is a packaged system complete with boiler vessel, expansion
tank, air eliminator, circulating pump and touch screen system interface. It is
designed to be used in a variety of radiant hydronic heating applications. These
include high mass applications like radiant floor heating or low mass applications
like baseboard or radiator heating. Any model can support single or multiple
zones. If any single zone provides less than the minimum required GPM of the
boiler, purchasing an EZB-Edge model with integrated multi-zone controller
option (EZB-E4-**-240-1) is highly recommended to enable additional boiler
control functions.
This series is equipped with up to four zone control inputs and corresponding
pump/valve outputs, backup electric or gas boiler output, auto and manual high
limit safety interlocks, power company load management, three temperature
sensors (supply, return, and outside).
Installation fill and purge valve EZB-PF100
The included expansion tank is shipped loose within the EZB-Edge enclosure.
The expansion tank must be installed prior to filling the system. See Mechanical
Installation section.
®
®
BI603
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Table of Contents
Summary of Contents for Electro Industries EZB-Edge EZB-E1/4-05-240-1
- Page 1 ® ELECTRO-BOILER ® EZB-Edge INSTALLATION & OPERATING INSTRUCTIONS Model: EZB-E1/4-05-240-1 EZB-E1/4-07-240-1 EZB-E1/4-10-240-1 EZB-E1/4-12-240-1 EZB-E1/4-15-240-1 EZB-E1/4-17-240-1 EZB-E1/4-20-240-1 APPLICATION: The EZB-Edge is a packaged system complete with boiler vessel, expansion tank, air eliminator, circulating pump and touch screen system interface. It is designed to be used in a variety of radiant hydronic heating applications.
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Page 2: Table Of Contents
TABLE OF CONTENTS Description Page Introduction Installation Requirements System or Water Flow Boiler Piping Placement Clearances Mechanical Installation Water Additives/Treatment Water Fill Procedure Multiple Zones & Radiant Temperatures Integrated Zone Control Room Thermostat Placement Electrical Hookup Touchscreen Configuration/Operation Emergency Heat Outdoor Reset Setup Operational Information Replacement Parts... -
Page 3: Introduction
INTRODUCTION The EZB-Edge has been designed to be the complete system package for radiant heat applications. When properly sized, the EZB-Edge will provide the needed hot water to properly heat a space in a single ® zone or multiple zone application. With its unique WarmFlo technology the EZB-Edge can easily modulate output temperature based on the level of demand from a single or multi-zone system. -
Page 4: Installation Requirements
ETL/Intertek certification, and manufacturer product liability. Electro Industries cannot be held responsible for field modifications, incorrect installations, and conditions which may bypass or compromise the built-in safety features and controls. -
Page 5: System Or Water Flow
SYSTEM OR WATER FLOW In order to prevent hi-limiting and assure full 20 -year element life, the piping system/basic plumbing/circulator pump must be arranged to provide flow greater than minimum GPM shown in Table 1 below. If zoned system, this applies when the smallest zone is operating. TABLE 1 - ELECTRO-BOILER SPECIFICATION Model Volts... -
Page 6: Clearances
CLEARANCES SUGGESTED MINIMUM MINIMUM CLEARANCE SERVICE CLEARANCE LEFT 2 INCHES 51 MM 12 INCHES 305 MM RIGHT 1 INCH 26 MM 12 INCHES 305 MM BACK 0 INCHES 0 MM 0 INCHES 0 MM FRONT 1 INCH 26MM 21 INCHES 534 MM 5 INCHES 127 MM... -
Page 7: Mechanical Installation
MECHANICAL INSTALLATION CAUTION Electro Industries requires the use of dielectric isolation between the boiler supply and return piping when the boiler is plumbed using copper or any other dissimilar metal. Damage to the vessel caused by galvanic corrosion voids Electro Industries’ warranty. - Page 8 5. Piping between the EZB-Edge and hydronic system manifolds is shown on drawing BX603. When following this diagram, the water fill procedure becomes very simple and almost guarantees the removal of all air or prevents air locking problems. Experienced hydronic heating installers may be able to eliminate some components, but the inclusion of these components guarantees installation and initial operating success.
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Page 9: Water Additives/Treatment
WATER ADDITIVES/TREATMENT Water treatment is strongly suggested to prevent scale deposits, corrosion from acids, oxygen, and other harmful elements within the specific water supply. It is the installer or user’s responsibility to verify water quality and maintain acceptable water quality throughout the life of this product. As a minimum the following water properties must be considered: ... -
Page 10: Multiple Zones & Radiant Temperatures
MULTIPLE ZONES AND RADIANT TEMPERATURES EZB-Edge Integrated Zone Control – this product has an integrated zone controller which receives thermostat heat calls directly and controls manufacturer installed relays to engage field supplied zone valve(s)/pump(s). The thermostats are directly connected to the respective R-W Zone Call terminals located at the top of the control board to turn on the boiler and the associated zone output pumps/valves relays. -
Page 11: Integrated Zone Control
INTEGRATED ZONE CONTROLLER The following are three suggestions or reasons why using an external zone controller is not needed and does not enhance overall performance beyond the already integrated zone control capabilities. 1. Zone wiring and troubleshooting convenience – the integrated zone controller allows for easy terminal block and point to point wiring for each zone thermostat and each zone valve/pump. -
Page 12: Electrical Hookup
ELECTRICAL HOOKUP Reference drawing BH601 1. 240/208-Volt Heating Power – route and install the proper current carrying conductors from service panel fuse or circuit breaker. See Specification Table and/or product nameplate for ratings. These models contain built-in circuit breakers and meet the requirement for local disconnect for appliances greater than 10 kW. - Page 13 this unit is only equipped for off-peak = N.C. logic. If reversed logic is required, contact the factory for recommendations. Optional – if load management is not used, simply keep the blue jumper in place. Optional – if the power company disconnects 240V for load control, contact factory for drawing BH029 for special wiring requirements via 240v relay.
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Page 14: Touchscreen Configuration/Operation
TOUCHSCREEN CONFIGURATION The touchscreen is broken down into five main pages (Logo Page, Main Page, Status Page, Setup Page, and Diagnostics Page), various sub-pages for initialization, and factory password protected boiler initialization. The following diagram outlines the core pieces of the interface. Each section and the associated functions are described in the following paragraphs. - Page 15 Screen Overview – Setup Page (Zone and Temperature Setup Subsections) Temp Setup Zone Setup 01/11/2022 BI603...
- Page 16 Screen Overview – Setup Page (Slave Boiler and Pump/Valve Setup Subsections) Slave Setup Pump Setup 01/11/2022 BI603...
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Page 17: Runtime Operation
Screen Overview – Diagnostics Page Initialization Manual Control Emergency Heat RUNTIME OPERATION Overview 1. During normal operation there are five main screens which can be accessed with information displayed. The primary screen and the screen which the ‘Home’ button in the upper dropdown will navigate to the ‘Main Page’... - Page 18 Home Page 1. During all operating conditions this page provides the ability to change the visible language of the interface between English, French and Spanish. Pressing on the selected flag brings up the three available options. While the menu is expanded select the desired system language. Swipe screen to move to the next page.
- Page 19 Unauthorized system command, modifications or bypass of any controls, or installation practices not according to the details of this manual will void the product warranty, the ETL/Intertek/UL certification, and manufacturer product liability. Electro Industries cannot be held responsible for field modifications, incorrect installations, and conditions which may bypass or compromise the built-in safety features and controls.
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Page 20: Boiler Configuration
Unauthorized system command, modifications or bypass of any controls, or installation practices not according to the details of this manual will void the product warranty, the ETL/Intertek/UL certification, and manufacturer product liability. Electro Industries cannot be held responsible for field modifications, incorrect installations, and conditions which may bypass or compromise the built-in safety features and controls. - Page 21 Unauthorized system command, modifications or bypass of any controls, or installation practices not according to the details of this manual will void the product warranty, the ETL/Intertek/UL certification, and manufacturer product liability. Electro Industries cannot be held responsible for field modifications, incorrect installations, and conditions which may bypass or compromise the built-in safety features and controls.
- Page 22 Setup Page 1. This page provides the ability to adjust the configuration of the system including zone, temperature, boiler, and pump settings. When the buttons are opaque, the system cannot be modified. To adjust the configuration of the system, follow the steps as indicated in the ‘Technician Mode’...
- Page 23 1. Zone Setup: Configuration of the different zones are accessed through the ‘Zone Setup’ button as indicated on the right. Configuration options include zone temperature setpoints, high temp priority enable/disable and zone call priority levels. 2. Zone temperature setpoints range between 50°F - 180°F and are set by pressing, holding and sliding the respective zone slider to the proper temperature.
- Page 24 1. Temp Setup: Configuration of temperature settings are accessed through the ‘Temp Setup’ button as indicated on the right. Configuration options include temperature units, warm weather settings, and temperature offsets. 2. Temperature setup enables selecting temperature units (°F or °C), warm weather shutdown enable/disable and the temperature at which to enable warm weather shutdown.
- Page 25 1. Slave Boiler Setup: Configuration of primary, external and gas boiler settings are accessed through the ‘Slave Boiler’ button as indicated on the right. Configuration options include boiler runtime, enabling/disabling of boilers, and gas boiler master setup. 2. Electric Boiler Setup provides the functionality to control available electric boilers.
- Page 26 1. Pump Setup: Configuration of pump purge and exercise configurations are accessed through the ‘Pump Setup’ button as indicated on the right. Configuration options include pump pre-purge, post- purge and pump exercise settings for the respective zone pumps/valves. 2. Pre Purge Setup provides functionality to control how long the respective zone pump/valve is engaged or opened prior to elements engaging.
- Page 27 ETL/Intertek/UL certification, and manufacturer product liability. Electro Industries cannot be held responsible for field modifications, incorrect installations, and conditions which may bypass or compromise the built-in safety features and controls.
- Page 28 Unauthorized system command, modifications or bypass of any controls, or installation practices not according to the details of this manual will void the product warranty, the ETL/Intertek/UL certification, and manufacturer product liability. Electro Industries cannot be held responsible for field modifications, incorrect installations, and conditions which may bypass or compromise the built-in safety features and controls.
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Page 29: Emergency Heat
While Emergency Heat does not bypass the built-in safety features and controls, it increases the possibility of subsequent activation of built-in safety features. Electro Industries cannot be held responsible for conditions which result as a byproduct of activating this feature. -
Page 30: Installation Information
INSTALLATION INFORMATION When using the EZB-Edges’ integrated zone controller in priority mode, the boiler system automatically commands the outlet temperature with the associated zone calling to the initialized temperature setpoint in order of priority precedence (1 = highest priority, 4 = lowest priority). This is setup for the commanded zone temperatures and priority is completed through the touch screen interface. -
Page 31: Outdoor Reset Setup
OUTDOOR RESET SETUP Non-Outdoor Reset – simply set the desired zone setpoint temperature under the ‘Zone Setup’ ‘Zone Temperature Setpoint’ page. This control strategy is accomplished via the touchscreen interface. Press the ‘Save’ button for the settings to take effect. -
Page 32: Operational Information
OPERATIONAL INFORMATION Touchscreen Status Indications 190°F AUTO RESET LIMIT, red – this will only illuminate when the vessel high limit opens due to excessive water temperature. This hi-limit is self-resetting. 205°F MANUAL RESET HIGH LIMIT, red – this will only illuminate when the vessel manual high limit opens due to excessive water temperature. - Page 33 Normal Heating Operation When there is a heat call from the thermostat (24VAC present on the control board W-C terminals) the boiler pump will start and thermostat call indication will illuminate on the front of the EZB-Edge touchscreen interface: Boiler Operation (Main Page), steady green ...
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Page 34: Error Diagnostics
Once the return water temperature starts to increase you will start to see an increase in outlet temperature. This will continue until the outlet temperature reaches the desired set point, at which point the WarmFlo control will stage and modulate elements to hold that temperature. ERROR DIAGNOSTICS Touchscreen Interface Error Lights ... - Page 35 Manual Reset Hi-Limit WARNING DO NOT PROCEED UNTIL POWER IS REMOVED (ALL BREAKERS ARE IN THE OFF POSITION INSIDE THE PRODUCT AND AT YOUR ELECTRICAL PANEL). At the top of the vessel there will be either two or three surface mount hi-limits preset at 205° F. There is an indicator associated with these safety hi-limits on the touchscreen interface.
- Page 36 Auto Reset Hi-Limit WARNING DO NOT PROCEED UNTIL POWER IS REMOVED (ALL BREAKERS ARE IN THE OFF POSITION INSIDE THE PRODUCT AND AT YOUR ELECTRICAL PANEL). At the top of the vessel there will be two red/white or red/yellow wires to an auto hi-limit sensor which trips power to the element relays at 190°...
- Page 37 Internal Fuse The fuse on the controller board protects the transformer secondary, external items connected to R, and the circuit board itself. Replace with 2-amp, fast blow fuse or equivalent. Flow Auto LWCO Fuse System Pressure The side press/temperature gauge should be at approximately 12-20 psi at room temperature water and should not rise more than approximately 4 psi at the operating or hot water temperature.
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Page 38: Replacement Parts
Replacement Parts 5405KIT Supply or Return temperature sensor (Thermistor), 4 ft. WFS6206 Outdoor temperature sensor (Thermistor), 25 ft. EB5400 Control board and touchscreen UFUSE0443 2-amp, fast blow fuse 4038KIT Triac switch module 5128C Heating relay 5123 Relay, 240V manual limit indication relay 5535 Safety hi-limit, manual reset, 205°... -
Page 39: Troubleshooting/Repair Helps
TROUBLESHOOTING/REPAIR HELPS Control Interference 1. This WarmFlo controller contains several interference suppression components, but as an electronic logic product, unpredictable and unusual transients or interference may sometimes cause strange results. If the WarmFlo controller is acting strange, one immediate step would be conducting a power down reset. -
Page 40: Bx603
EZB MECHANICAL PIPING SCHEMATIC EZB BOILER WATER SUPPLY BALL VALVE 1" X 1" X 3/4" TEE 1" PIPE 1" PIPE NIPPLE BALL VALVE 1" X 1" X 3/4" TEE DRAIN VALVE (THREADED INTO TEE) MANIFOLD Electro Industries, Inc. BX603 REV.A 01/10/22 Monticello, MN 55362 (763)295-4138... -
Page 41: Uai820
LOAD MANAGEMENT ZONE 4 ZONE 3 LOW WATER SWITCH 24VAC ZONE 2 COMMON AUTO-HIGH LIMIT ZONE 1 FLOW SWITCH MAN HIGH LIMIT INDICATION RESET OUTSIDE SENSOR SUPPLY SENSOR JUMPER PROGRAM RETURN SENSOR EXTERNAL BOILER ZONE MASTER BOILER ELEMENT 1-4 HARNESS EMERGENCY HEAT INTERFACE HARNESS UAI820... - Page 42 EZB-**-** 03/15/2022 1 of 1 BH601 B...
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Page 44: Xx017
Limited Product Warranty Effective November 1, 2009 Electro Industries warrants to the original owner, at the original installation site, for a period of two (2) years from date of original purchase, that the product and product parts manufactured by Electro... -
Page 45: Conditions And Limitations
Remedies under this warranty are limited to repairing or replacing alleged defective product or product parts. The decision whether to repair or, in the alternative, replace products or product parts shall be made by Electro Industries or its authorized representative.
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