ELECTRO-BOILER Midsize INSTALLATION & OPERATING INSTRUCTIONS Model EB-MS-10 EB-MS-15 EB-MS-20 APPLICATION: This Electro-Boiler series is factory equipped with outlet temperature sensing and a smart controller which automatically stages the various elements to operate at the field preset outlet temperature.
TABLE OF CONTENTS Description Page Introduction 1 System or Water Flow 2 Multiple Zones & Radiant Temperatures 2 Zone Controller 2 Room Thermostat Placement 3 Two-Temperature Operation or Feature 3 Multiple Boilers 4 Boiler/Plumbing Kit Placement 4 Installation Requirements 4 Mechanical Installation Under-Floor Radiant 6 Dual Heat 7 Electrical Hookup 8 Water Fill Procedure 9 Controller Setup 10 Operational Tips 10 Standby Switchover, SOT Timer 11 Replacement Parts List 12
INTRODUCTION With this temperature sensing controller capability, the electric heating element stages are automatically turned on and off to establish a fixed outlet water temperature. This outlet temperature is sensed at the outlet pipe, the controller regulates four stages, and attempts to control the water temperature at a value determined by the setup arrangements. Field setting the outlet temperature at the design or realistic temperature is required.
SYSTEM OR WATER FLOW In order to prevent hi-limiting and assure full 20+ years parts life, the piping system/basic plumbing/circulator pump must be arranged to provide flow greater than minimum GPM shown in Table 1. If zoned system, this applies when the smallest zone is operating.
3. Two temperature system with unbalanced zones – if the application includes zone one requiring high temperature and the remaining zones are radiant floor low temperature, this zone controller will automatically raise the output of the high temperature zone. This is a priority arrangement, zone 1 holds off the other zones while the high temperature output is heating.
MULTIPLE BOILERS This boiler series now includes a method for automatically staging any number of parallel-plumbed boilers. Order plug-in relay EB-C-STG5. The thermostat is connected only to the first boiler, when all stages are on for more than 5 minutes, this new plug-in relay module turns on the next boiler (R and W), and a second EB-C-STG5 could be used to turn on the third, etc. BOILER/PLUMBING KIT PLACEMENT This model series is wall hung and the vessel must be vertical, drawing BX505.
2. This installation manual and Electro-Boiler products relate only to the addition of the Electro-Boiler to the hydronics system. The owner/ installer assumes all responsibility and/or liability associated with any needed installation of the gas/oil boiler, pump, plumbing, system design, hydronics systems or backup gas/oil boiler, etc. Any instructions or comments made within this manual (or factory phone assistance) relating to the gas/oil furnace are provided as comments of assistance and “helps” only.
MECHANICAL INSTALLATION – UNDER-FLOOR RADIATION 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. Reference drawing BX505 1. With the typical radiant floor system, a dual heat backup boiler is uncommon.
MECHANICAL INSTALLATION – DUAL HEAT 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. Reference drawings BX504 1. Unpack the Electro-Boiler. The safety relief and pipe fittings are packed within a small carton. 2.
ELECTRICAL HOOKUP Reference drawing BH509 1. 240 Volt Heating Power – route and install the proper current carrying conductors from service panel fuse or circuit breaker. See page 2 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. Connection is at the circuit breaker terminals. If using single feed method, single feed bus – order part number 5701.
8. Remote Display – an optional remote display (4-wire stat cable) can be added, call factory for details. Also requires main board upgrade, @EBSTW5623. WATER ADDITIVES 1. Unless the source water is unusually poor and/or rust elements, additives are not required. It is recommended the water source as shown on drawing BX505 comes through the household water softener or use distilled water. 2.
CONTROLLER SETUP Temperature set point – the front red “knob” allows for field or user setting of the outlet water temperature. The built-in sensor and controller will attempt to regulate the electric element stages around this set temperature. The smallest staging increment is 5 kW; therefore, there will some fluctuation around this set point. Field setting the outlet temperature at the design or realistic temperature required by the radiation is more efficient.
HI-LIMIT, red – this will only illuminate when the vessel hi-limit opens due to excessive high water temperature. This hi-limit is self resetting. PWR ON, green – basically this is illuminated at all times. It represents 24-volt power source, good fuse, controller logic is operational, and a good outlet sensor. If the outlet sensor is inoperative, incorrectly wired, or malfunctioning; this green monitor LED will be in the blinking or pulsing mode (see page 11).
REPLACEMENT PARTS WFSB EB5623S UFUSE0440 5127 5535 5537 5453 5456A 5652 5650 EB5526 5541 03/19/2009 Outlet sensor, 3 ft. Controller, temp. sensing 2-amp fuse, fast blow (AGC2) Heating relay Safety hi-limit, manual, 205° First hi-limit, auto-reset, 185° Relief valve, 30 PSIG Gauge press/temp.
TROUBLESHOOTING/REPAIR HELPS 1. This temp. sensing 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 temp. sensing controller is “acting strange”, one immediate step would be power down reset. Simply turn off boiler power or breaker number 1, when the green LED goes out, count to 10, and re-energize power supply. 2.
EB-M*-** MECHANICAL PIPING 2 3 10 7 12 6 5 NO. PART NUMBER 1 EB-M*-** 2 XTEE7060 3 XNPL7780 4 XEL7850 5 XBSH7180 6 #5453 7 #5595 8 XBSH7190 9 #5456A 10 XNPL7781 11 #5591 12 XNPL7783 13 #5503 14 #5548 15 PUMP 16 FLANGE KIT DESCRIPTION QTY.
ELECTRO-BOILER DUAL HEAT PIPING DIAGRAM TO SYSTEM FROM SYSTEM SAFETY INLET VALVE #5453 GATE 1 VALVE DRAIN VALVE (THREADED INTO TEE) IN OUT WATER SUPPLY VALVE AUTO FILL VALVE EXPANSION (REGULATOR) TANK WATER SUPPLY CONNECTION OUT IN ELECTROBOILER NOTES: 1. LOOSE PARTS SHIPPED WITH BASIC BOILER MODEL. 2. IF WOOD BOILER, REVERSE ORDER (ELECTRIC FEEDS WOOD). OIL/GAS BOILER (WITH PUMP) 2 3. MINIMUM 20" SPACING BETWEEN FLOOR AND BOTTOM OF BOILER. DRAIN 3 ELECTRO INDUSTRIES, INC.
EB-MS-** HOOKUP NO COM 240VAC SOURCE CIRCUIT 120VAC POWER CIRCUIT BREAKER BREAKER (ST CABLE, FACTORY INSTALLED) ST COM OT LO REMOTE V+ GND RED J1 TEMP. SENSOR TB4 HI SW5 TB1 TEMP. SENSOR CALIB.
ELECTRO-BOILER HL3 MODEL: EB-MS-10 RW 190° RW TO J4 ST COM OT LO REMOTE V+ GND RED J1 TEMP. SENSOR TB4 HI SW5 TB1 J4 4 STG LED1 1 LED2 OR WBL 3 TEMP. SENSOR CALIB.
ELECTRO-BOILER HL3 MODEL: EB-MS-15 RW 190° RW TO ST COM OT LO REMOTE V+ GND RED J1 TEMP. SENSOR TB4 HI SW5 TB1 TEMP. SENSOR CALIB.
ELECTRO-BOILER HL3 MODEL: EB-MS-20 RW 190° RW TO J4 ST COM OT LO REMOTE V+ GND RED J1 TEMP. SENSOR TB4 HI SW5 TB1 TEMP. SENSOR CALIB.
BOILER ACCESSORIES 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.
TWO SUPPLY WATER TEMPERATURE REQUIREMENT • Handled as the priority zone on multi-zone (EB-ZEA-1) or two pump (EB-Z2P) controllers • Priority switch on, zone 1 active - TS boiler automatically changes to 150° (or selection 176°) supply water setting • • All other zones are held off With zone 1 satisfied or 60-minute timeout, the boiler automatically returns to the preset temperature and reacts to the other zones Low Temp High Temp Radiant, slab Radiant, staple up Radiant, slab Baseboard Radiant, s
Electro Industries, Inc. Limited Product Warranty Effective February 5, 2009 Electro Industries, Inc. warrants to the original owner, at the original installation site, for a period of two (2) years from date of installation, that the product and product parts manufactured by Electro Industries are free from manufacturing defects in materials and workmanship, when used under normal conditions and when such product has not been modified or changed in any manner after leaving the plant of Electro Industries.
THESE WARRANTIES DO NOT COVER: 1. Costs for labor for removal and reinstallation of an alleged defective product or product parts, transportation to Electro Industries, and any other materials necessary to perform the exchange, except as stated in this warranty. Replacement material will be invoiced to the distributor in the usual manner and will be subject to adjustment upon verification of defect. 2.
