Electro Industries EZB-Eco EZB-T1-05-240-1, Installation & Operating Instructions Manual

Page 1: ... than the minimum required GPM of the boiler an Electro Industries zone controller option is highly recommended This series is equipped for load management interrupt with backup boiler output ACCESSORIES Electro Zone Controller models EB ZEA 1 and EB ZES8 Electro Dual Fuel Control Module EB S SB IMPORTANT The included expansion tank is shipped loose within the EZB Eco enclosure The expansion tank ...

Page 2: ...uirements 4 Clearances 5 Mechanical Installation Under Floor Radiation 6 Electrical Hookup 8 Water Fill Procedure 9 Controller Setup 10 Staging Modulating Jumper 11 Operational Tips 11 Standby Switchover SOT Timer 12 Replacement Parts List 13 Troubleshooting Repair Helps 14 Operational Information 15 Drawings Basic Mechanical Piping BX603 Low Voltage Hookup UAW429 High Voltage Hookup BH601 Interna...

Page 3: ...240 volt residential single phase If this unit is used on 208 volt energy capacity is reduced by approximately 25 The installed transformer has a primary tap for 208 volt Rewire the internal transformer so the boiler is using this primary tap for 208 volt applications APPROVED TUBING PIPING When plumbing this boiler and its peripheral parts to the loop system all plumbing parts and or tubing must ...

Page 4: ...ectro Industries zone controllers have staging smarts the addition of the zone controller will provide smoother boiler temperature control The zone board has a dial switch for each zone and the installer selects one of four zone capacity sizes When dialing in the size closest to the zone Btu h capacity the zone controller smarts only allows the appropriate boiler stage which can handle that capaci...

Page 5: ...mperature The water temperature coming out of the boiler will be higher when it s cold outside and lower when it s warmer outside The idea is to have the boiler work with the building heat loss to maintain a more even BTU delivery to the space This helps with overall system efficiency as well Outdoor Reset Activation If it is determined that outdoor reset is required for this application it needs ...

Page 6: ...nnot be held responsible for field modifications incorrect installations and conditions which may bypass or compromise the built in safety features and controls 2 This installation manual and Electro Boiler products relate only to the addition of the Electro Boiler to the hydronic system The owner installer assumes all responsibility and or liability associated with any needed installation of the ...

Page 7: ...E 14 INCHES 356 MM SURROUNDING AMBIENT TEMPERATURE MUST NOT EXCEED 90 F 32 C CAUTION For all installations whether in a room or enclosed space adequate ventilation must be provided so this boiler s surrounding ambient temperature does not exceed 90 F 32 C WARNING FOR SAFETY REASONS ALL COMBUSTIBLE AND NON COMBUSTIBLE MATERIALS MUST BE KEPT AT LEAST ONE INCH AWAY FROM ANY SURFACE OF THIS BOILER CAU...

Page 8: ...not included to the threaded nipple of the expansion tank c Thread the expansion tank into the designated shutoff fitting located at the bottom of the air eliminator assembly Use a 7 8 wrench to tighten the expansion tank at the designated fitting on the expansion tank DO NOT ATTEMPT TO TIGHTEN BY HAND d Open the shutoff valve between the expansion tank and air eliminator assembly Failure to open ...

Page 9: ...for hydronic heating 6 When connecting pipe of dissimilar metal to the inlet and outlet of the boiler dielectric unions must be used 7 To ensure safe boiler operation adequate system pressure must be maintained Once all the air is purged form the system adding additional water may be required to bring the system up to operating pressure 12psi 8 Depending upon water conditions determine whether wat...

Page 10: ...eries has been pre wired and designed for an external utility load management receiver connection The control board lower left terminal block marked BLU and BLU WHT represent the two contact points extend these wires to the utility load control device As shipped this unit is only equipped for off peak N C logic If reversed logic is required contact the factory for modification Optional if load man...

Page 11: ... the system 1 Do not apply 240 208 volt heating power during water fill sequence 2 Connect the temporary household water supply source probably hose connection to the water supply connection input NOTE If water supply connection is permanent some local building codes may require special anti siphon check valve RPZ check valve or equivalent between the boiler fill regulator and the domestic water s...

Page 12: ...de with the curves below High and low mass also relate to the ramp up water temperature starting point as shown Select the high or low mass with the rate of temperature rise based on outdoor temp OT Comment The WF ANZ test set allows field change of the base temperature start point This control strategy is accomplished via connecting the outdoor sensor and performing a power reset to the boiler lo...

Page 13: ... is in the L position the pump is interrupted during a load control WARNING THIS SHORTING DEVICE MUST BE IN ONE OF THE TWO POSITIONS FOR THE CIRCULATOR PUMP TO PROPERLY OPERATE OPERATIONAL TIPS Front Panel Monitor Lights 190 F AUTO RESET LIMIT red this will only illuminate when the vessel hi limit opens due to excessive high water temperature This hi limit is self resetting BOILER POWER green basi...

Page 14: ...w 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 If the pressure change is more than approximately 4 PSI the expansion tank is too small or there is a problem with the expansion tank piping expansion tank itself Cold slab...

Page 15: ...205 F 5537G Safety hi limit auto reset 190 F 5453 Relief valve 30 PSIG 5456 Pressure temperature gauge 5652 60A SQ D circuit breaker 5651 45A SQ D circuit breaker 5650 30A SQ D circuit breaker 5680 10A SQ D circuit breaker EB5526 Electric element 240V 5 kW EB5520 Electric element 240V 4 5 kW EB5524 Electric element 240V 2 5 kW 5541 Transformer 24V 40VA 5585T Circulating Pump 120V 5590 Expansion ta...

Page 16: ...door sensor OT must be sensing the actual outside temperature for this controller to correctly operate if you re using the outdoor reset configuration Do not simply leave the outdoor sensor hang in the room and attempt to run this system 5 Temperature sensing bypass the inside control board left side contains a E tab which can be used to directly step in the heating stages and in essence bypass th...

Page 17: ...ntrol of the EZB Eco should prevent this However on a system with very low water flow or trapped air you will see the 190 auto reset activate The water within the boiler vessel must cool by 30 F before the high limit will self reset If you experience auto reset limit trips at initial startup of the EZB Eco the following items should be checked System pressure 12 to 20 PSI on boiler gauge All ball ...

Page 18: ...4 TEE WATER SUPPLY BALL VALVE BALL VALVE DRAIN VALVE THREADED INTO TEE 1 X 1 X 3 4 TEE EZB BOILER 1 PIPE NIPPLE IN OUT BX603 REV A 04 28 20 Electro Industries Inc Monticello MN 55362 763 295 4138 EZB MECHANICAL PIPING SCHEMATIC ...

Page 19: ...UAW429 Rev A 5 7 20 ...

Page 20: ...3 2 1 EZB SERIES HOOKUP INSTALLATION BH601 Rev A 05 04 20 EZB BH601 A 1 of 1 05 04 20 ...

Page 21: ...UAW428 Rev A 05 04 20 ...

Page 22: ...itional 4 enclosure and 40VA transformer Pumps EB ZEA8 with enclosure and 40VA transformer for 8 zone pumps Zone Valves EB ZTS 1 install within boiler cabinet encl option EB ZTS 2 add additional 4 enclosure and 40VA transformer EB ZES8 with enclosure no transformer for 8 zone valves ZONE CONTROLLER SWITCHING RELAY EE 5051 MULTI BOILER EB C STG5 This DPDT 24 volt switching relay provides a convenie...

Page 23: ...erature pressure gauge pressure relief safety valve and when applicable the WarmFloTM electronic control sensors These kits provide the additional components for easy installation 5585 Mini Boiler 10 kW TS Series 5586 TS Series Standard 5578 3 4 Pipe 5582 1 Pipe 5579 1 1 4 Pipe 120V 1 25 HP maintenance free wet rotor circulator Pump curve example 5 GPM 19 L 11 ft of head 32 9 kPa 120V 1 6 HP maint...

Page 24: ...acement Labor Allowance Schedule for a period of ninety 90 days from the date of original purchase to the original owner at the original installation site The Repair Replacement Labor Allowance is designed to reduce the cost of repairs This Repair Replacement Labor Allowance may not cover the entire labor fee charged by your dealer contractor TWENTY YEAR 20 LIMITED WARRANTY ON BOILER ELEMENTS AND ...

Page 25: ...ubject to adjustment upon verification of defect 2 Any product or product part that has been damaged as a result of being improperly serviced or operated including but not limited to the following operated during construction phase with insufficient water or air flow allowed to freeze subjected to flood conditions subjected to improper voltages or power supplies operated with air flow or water con...