Electro Industries EB-WX-13-2, Installation & Operating Instructions Manual

Page 1: ...nternal timing over temp conditions With the mixture of zones the zone controller ZTS option is highly recommended see page 2 This series is equipped for load management interrupt and can apply to standard baseboard radiation dual heat combinations under floor radiant wood boiler supplement etc Note If this installation does not include dual heat standby boiler the front panel switch must always b...

Page 2: ...ements 5 Mechanical Installation Under Floor Radiant 7 Dual Heat 8 Electrical Hookup 9 Water Fill Procedure 10 Controller Setup 11 Operational Tips 13 Replacement Parts List 15 Troubleshooting Repair Helps 16 WarmFlo Operational Information 17 Drawings Hookup BH513 Pressure Relief Valve Piping BX501 Basic and Preferred Mechanical Piping BX502 Dual Heat Mechanical Piping BX504 Internal Wiring Schem...

Page 3: ...od boiler The Electro Boiler is generally at the gas oil outlet but for wood the Electro Boiler must be on the inlet sides The standby boiler cannot be operated as hot boiler This will defeat the Electro Boiler Rewire as required standby boiler is turned on from the brown wires included with this boiler In the case of existing fossil fuel boiler conversions it is assumed the expansion tank valving...

Page 4: ...the primary pump is connected to the boiler pump contacts This assures the primary pump is active and running whenever the boiler is turned on via contact closure on R and W At least one zone must be open before turning on the primary pump Electro Boiler Do not design a system where the Electro Boiler is supposed to operate as a hot boiler based upon its outlet sensor without the primary pump circ...

Page 5: ... comfort and proper space heating response is a direct relationship to the thermostat type and the placement of the thermostat sensing bulb Typically an under floor heating system can be broken down into three categories A Energy storage water tubing is under the concrete or within the sand base the controlling thermostat must have a remote bulb and this remote bulb must sense the concrete slab te...

Page 6: ... 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 does need to be activated Follow this sequence to activate outdoor reset Step 1 Power...

Page 7: ... 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 WARNING ALL ELECTRICAL WIRING MUST BE IN ACCORDANCE WITH NATIONAL ELECTRIC CODE AND LOCAL ELECTRIC CODES ORDINANCES AND REGULATIO...

Page 8: ...fety is the installer s responsibility and the installer must know this product well enough to instruct the end user on its safe use Safety is a matter of common sense a matter of thinking before acting Professional installers have training and experienced practices for handling electrical sheet metal and material handling processes Use them CLEARANCES MINIMUM CLEARANCE FROM COMBUSTIBLE SURFACES S...

Page 9: ...d This can be an air diaphragm tank as provided in the plumbing kit or a basic empty tank where air is compressed at the tank top Inlet Temperature Gauge recommended to observe the operation of the system Air Vent Relief install with the pressure relief valve as shown on drawing BX502 page 2 or part of the air eliminator shown on BX502 page 3 Inline Air separator this can be installed ahead of the...

Page 10: ...properly with the vessel in a horizontal position NOTE Mount at least 20 inches above the floor to allow element removal and service at the bottom 5 Typically this unit is wall hung next to the existing boiler 6 Use the pipe fittings to install the safety relief valve and air vent Add the necessary piping to the safety relief valve so that water damages do not occur in the surrounding area 7 Conne...

Page 11: ...ct to R and W bottom right Set thermostat internal heat anticipator to 0 2 Floor Sensing Stat Connect to R and W bottom right Place slab sensor in the slab If needed can connect thermostat C to boiler C NOTE Power robbing power stealing thermostat if you have a power robbing or power stealing thermostat you must use the resistor included with the thermostat Place this jumper between boiler W and b...

Page 12: ...cal professional plumber specializing in hydronics heating systems WATER FILL PROCEDURE The following procedure applies to non glycol or antifreeze and prepackaged plumbing kit and or when the system is plumbed exactly as shown on drawing BX502 CAUTION If the building supply pressure is connected directly to supply water ball valve without pressure reducing regulator user needs to make sure the pr...

Page 13: ... the boiler low voltage power cycle Outdoor reset the temperature decal will relate to the OT 0 set point and the knob numbers coincide 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 temperat...

Page 14: ...ol interrupt or optional remote standby switch There is a provision within the controller board inside to allow the circulator pump to not operate during load control interrupt On the inside control board just above the two bottom terminal blocks is a small pin jumper arrangement The black device sets up the pump mode Just below this pin jumper arrangement are W and L lettering When the two pin sh...

Page 15: ... malfunctioning this green monitor LED should be in the blinking or pulsing mode see Troubleshooting section ELECTRIC MODE amber when illuminated the system is in the electric mode If it is not illuminated the utility load control receiver is in the interrupt or on peak mode If there is an optional or remote standby switch the status of the standby switch is also monitored by this amber LED THERMO...

Page 16: ... Replace with 5 amp fast blow mini automotive fuse or equivalent Stat Heat Anticipator If it is a mechanical stat verify heat anticipator has been set at Ø 2 non zone system System Pressure The side press temperature gauge should be at approximately 10 to 16 PSI at room temperature water and should not rise more than approximately 4 PSI at the operating or hot water temperature If the pressure cha...

Page 17: ...442 5 amp fast blow mini automotive fuse 4038 Triac switch module 5127 Heating relay 5535 Safety hi limit manual 205 5537 First hi limit auto reset 180 5453 Relief valve 30 PSIG 5456A Gauge press temp 5658 100A SQ D circuit breaker 27 2 5655 50A SQ D circuit breaker 13 2 EB5521 Electric element 208 4 5 kW 5541 Transformer 24V 40VA ...

Page 18: ... 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 6 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 the temperature sensing and control functions The E tab has the highest priority and overrides all tempe...

Page 19: ...ed on and off with relays However steps 2 3 and 4 are only used when required by the WarmFlo water temperature calculations Stage 1 may not necessarily remain at 100 but is modulated downward to meet the requirements of the water sensor etc The time between stage turn on depends upon where the controller logic memory was after the last thermostat call or following a power up reset condition The lo...

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Page 25: ...ARTS SHIPPED WITH BASIC BOILER MODEL 2 IF WOOD BOILER REVERSE ORDER ELECTRIC FEEDS WOOD 3 MINIMUM 20 SPACING BETWEEN FLOOR AND BOTTOM OF BOILER SAFETY VALVE 5453 AUTO FILL VALVE REGULATOR WATER SUPPLY VALVE INLET GATE VALVE DRAIN VALVE THREADED INTO TEE IN OUT EXPANSION TANK OIL GAS BOILER WITH PUMP FROM SYSTEM TO SYSTEM DRAIN OUT IN ELECTRO BOILER ...

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Page 28: ...8 with enclosure no transformer for 8 zone valves ZONE CONTROLLER SLAB STAT Sensing and controlling the system based upon radiant floor surface temperature or the concrete mass has very positive benefits Radiant floor air stat in the same area as a forced air roomstat presents serious control problems A remote sensing slab stat for the radiant floor removes this issue Remote sensing slab stat is r...

Page 29: ...s boilers come standard equipped with outlet temperature 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 ...

Page 30: ...t parts shall be repaired or in the alternative replaced shall be made by Electro Industries or its authorized representative ONE YEAR 1 LIMITED WARRANTY ON BOILER PARTS Electro Industries Inc warrants that the parts of its 3 Phase Boilers are free from defects in materials and workmanship through the first year following date of installation If any product parts are found to have a manufacturing ...

Page 31: ...purchaser shall have maintained the product in accordance with the manual that accompanies the unit Annually a qualified and licensed contractor must inspect the product to assure it is in proper working condition 5 All related heating components must be maintained in good operating condition 6 All lines must be checked to confirm that all condensation drains properly from the unit 7 Replacement o...