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Electro Industries Mini-Boiler EMB-W-9 Installation & Operating Instructions Manual

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Mini-Boiler
Installation & Operating
Application - Low temperature, low pressure, radiant underfloor heating systems.
includes a factory installed WarmFlo
Comment - If this application is for traditional hydronics heating requiring temperatures greater than
14Ø and capacities larger than shown above, contact factory for other Electro-Boiler product series.
If this application requires temperatures greater than 140°, this is the wrong model. Contact the
distributor or factory for the EB-M*-** model series which is designed for temperatures up to 180°.
This series can also do outdoor reset and other features.
Accessories
Attached BL001 lists various accessory or option items which are not part of basic
–
Electro-Boiler. Page 1 gives information on a zone control update which stages elements based upon
zone capacity.
Note:
This product meets the requirements of the ASME Boiler and Pressure
Vessel Code.
Drawings:
BX304
BH304
BS304
BS309
BD705
BH007
BL001
10/22/2008
Electric
Instructions
Model EMB-W-9
9 kW
®
aquastat.
2 GPM minimum flow
TM
This model
BI302B

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Summary of Contents for Electro Industries Mini-Boiler EMB-W-9

  • Page 1 Electric Mini-Boiler Installation & Operating Instructions Model EMB-W-9 9 kW 2 GPM minimum flow Application - Low temperature, low pressure, radiant underfloor heating systems. This model ® includes a factory installed WarmFlo aquastat. Comment - If this application is for traditional hydronics heating requiring temperatures greater than 14Ø...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Description Page System Components System or Water Flow Room Thermostat Placement Built in Temperature Control Water Flow Calculation Installation Requirements Mechanical Installation Electrical Hookup Water Fill Procedure Operational Tips Troubleshooting Helps Drawings: Piping, install kit BX304 Hook-up BH304 Internal Wiring (reference information) BS304...

  • Page 3: Room Thermostat Placement

    PVC conduit. If the slab is already poured without conduit for slab stat, use electronic remote sensing thermostat such as Electro Industries’ ES-24-SRO. This type of device only requires a ¼” hole drilled in the concrete at some center wall location.

  • Page 4: Water Flow Calculation

    251.04 x 6° C rise 1506.24 INSTALLATION REQUIREMENTS 1. All installation work must be performed by trained, qualified contractors or technicians. Electro Industries, Inc., sponsors installation and service schools to assist the installer. Visit our web site at electromn.com for upcoming service schools.

  • Page 5: Mechanical Installation

    MECHANICAL INSTALLATION CAUTION Electro Industries Inc. requires the use of dielectric isolation between the boiler vessel 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 6: Electrical Hookup

     Boiler/Plumbing Kit Placement – This model series is wall hung and the vessel must be vertical.  The plumbing kit items are located adjacent to the boiler housing itself as shown on drawing BX304.  For future servicing, the unit itself must be installed a minimum of 18” above the floor. The elements are screwed in from the bottom.
  • Page 7 WARNING USE ONLY COPPER WIRE FOR CONNECTION TO THE CIRCUIT BREAKER TERMINALS AND INSIDE THIS PRODUCT’S CABINET. WARNING TO AVOID THE RISK OF ELECTRIC SHOCK OR DEATH, WIRING TO THE UNIT MUST BE PROPERLY GROUNDED. FAILURE TO PROPERLY GROUND THE UNIT CAN RESULT IN A HAZARD LEADING TO PERSONAL INJURY OR DEATH.

  • Page 8: Water Fill Procedure

    2. Impurities within a closed loop hydronics boiler are considerably less damaging than the typical domestic water heater. In a closed loop electric boiler, the water impurities “boil out” and the system essentially reverts to pure water. As a closed system, this “pure water” becomes the operating mode. In the case of domestic water tank, there is always new water entering with new impurities.

  • Page 9: Operational Tips

    Figure 1 OPERATIONAL TIPS 1. Indicator lights – there is a set of four indicator lights on the lower right corner of the front cover with an identical set of four indicator lights on the internal circuit board itself. Figure 1 is a reproduction of the front decal giving definition and information for using these indicator lights.

  • Page 10: Troubleshooting Helps

    WARMFLO AQUASTAT OPERATION Sensor cable installation – see previous paragraph, Mechanical. Determine from floor tubing supplier design outline the desired floor temperature. Typically this relates to floor covering and tube placement design. Set the aquastat set point for desired warm water outlet. The temperature set point is selected by a small screwdriver switch on the control board.
  • Page 17 ELECTRO-BOILER SENSOR INSTALLATION Once the pipe well has been installed. Liberally apply the supplied heat compound around the tip of the Warmflo sensor. Then gently insert sensor into pipe well. Note: Using the tip of your finger, or another non-piercing object will aid in the insertion of the rubber grommet. Once the grommet has been inserted into the well gently press the sensor until it reaches the bottom of the pipe well.

  • Page 20: Slab Stat

    OILER CCESSORIES OILER CCESSORIES ZONE CONTROLLER This will simplify your wiring and make zoning applications much easier. In addition, enhanced communicating features have the ability to stage the electric boiler based upon the connected zone capacity. Pumps, Actuators, Valves Standard Features EB-ZTA-1 - install within boiler cabinet •...

  • Page 21: Circulating Pumps

    Electro Industries’ boilers come standard equipped with outlet temperature/pressure gauge, pressure relief safety valve, and when applicable, the WarmFlo electronic control sensors.
  • Page 22 TWENTY YEAR (20) LIMITED WARRANTY ON SPIN FIN ELEMENTS Electro Industries, Inc. warrants that the spin fin elements of its products are free from defects in materials and workmanship through the twentieth year following date of installation. If any spin fin elements are found to have a manufacturing defect in materials or workmanship, Electro Industries will replace them.
  • Page 23 ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED WITH RESPECT TO ALL PURCHASERS OR OWNERS. ELECTRO INDUSTRIES, INC. IS NOT BOUND BY PROMISES MADE BY OTHERS BEYOND THE TERMS OF THESE WARRANTIES. FAILURE TO RETURN THE WARRANTY CARD SHALL HAVE NO EFFECT ON THE DISCLAIMER OF THESE IMPLIED WARRANTIES.

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