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Electro Mini EZBoiler
INSTALLATION & OPERATING INSTRUCTIONS
APPLICATION:
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.
09/13/2024
Models:
EZB-R1-01-120-1
EZB-R1-03-120-1
EZB-R1-05-240-1
EZB-R1-07-240-1
EZB-R1-09-240-1
The Mini EZBoiler is a packaged system complete with boiler vessel, expansion
tank, air eliminator and circulating pump. It is designed to be used in low
temperature radiant heat applications.
This series is equipped for load management interrupt with backup boiler output.
The included expansion tank is shipped loose within the Mini EZBoiler
enclosure. The expansion tank must be installed prior to filling the system. See
Mechanical Installation section.
®
R1 Series
BI606
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Summary of Contents for Electro Industries Mini EZBoiler R1 Series
- Page 1 ® Electro Mini EZBoiler R1 Series INSTALLATION & OPERATING INSTRUCTIONS Models: EZB-R1-01-120-1 EZB-R1-03-120-1 EZB-R1-05-240-1 EZB-R1-07-240-1 EZB-R1-09-240-1 APPLICATION: The Mini EZBoiler is a packaged system complete with boiler vessel, expansion tank, air eliminator and circulating pump. It is designed to be used in low temperature radiant heat applications.
- Page 2 TABLE OF CONTENTS Description Page Introduction System or Water Flow Multiple Zones & Radiant Temperatures Zone Valves/Circulators Room Thermostat Placement Boiler/Piping Placement Installation Requirements Clearances Mechanical Installation Electrical Hookup Water Quality – Additives /Treatment Water Fill Procedure Controller Setup Operational Tips Replacement Parts List Operating &...
- Page 3 INTRODUCTION The Mini EZBoiler has been designed to be the complete system package for radiant heat applications. When properly sized, the Mini EZBoiler will provide the needed hot water to properly heat a space in a single zone or multiple zone application. Proper design of the radiant system is required to assure minimum required water flow (GPM) through the boiler.
- Page 4 MULTIPLE ZONES AND RADIANT TEMPERATURES The Mini EZBoiler R1 Series can be used in a single zone or multi zone application using a zone control panel or multiple zone valve end switch connections. It is designed to output one water temperature. If two temperatures are needed, thermostatic mixing valves can be used or consider using the Mini EZBoiler R1 Series.
- Page 5 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 6 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 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 Mini EZBoiler 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.
- Page 9 ELECTRICAL HOOKUP Reference drawing BH604 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 10 WATER QUALITY – 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. Failure to maintain suggested water quality could result in vessel or element failure not covered under the 20 year warranty.
- Page 11 OPERATIONAL TIPS Front Panel Monitor Lights (See troubleshooting section for more details) 205F MANUAL RESET LIMIT, red- this will only illuminate when the vessel hi-limit opens due to boiler plate reaching 205F. This is a manual reset limit, See page 12 for limit resetting instructions and cautions, ...
- Page 12 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. System Pressure The side press/temperature gauge should be at approximately 10 to 14 PSI at room temperature water and should not rise more than approximately 4 PSI at the operating or hot water temperature.
- Page 13 OPERATING & TROUBLESHOOTING 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 indicator lights will illuminate on the front of the Mini EZBoiler. ...
- Page 14 3. Temperature sensing bypass – the inside control board, left side, contains jumper labeled “E HEAT” which can be used to directly step in the heating stages and in essence bypass the temperature sensing and control functions. The E Heat jumper has the highest priority and overrides all temperature sensor functions.
- Page 15 low water flow or trapped air you might see the 205° manual reset trip open. The water within the boiler vessel must cool by 30° F before the high limit reset tab can be manually reset. If this limit trips during initial boiler start up, verify there is no trapped air in the system and the circulator pump is working properly with a heat call.
- Page 16 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 17 EZB-R1-** 09/11/24 1 of 1 BW604 A...
- Page 20 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 21 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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