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05/21/2009 11 

BI501 

 

EL 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. 

 

HEAT ON, red – indicates a remote switch closure (t-stat or zoning end switch) is closed between 
terminals R and W. 

 

Inside Controller Board 

 

STAGES, red – these four LED’s indicate which electric element stages are on and active. 

 

Manual Reset, Hi-Limit 

At the top of the vessel there will be either two or three surface mount hi-limits preset at 205° F.  There is 
no light indicator associated with these safety hi-limits.  Also these 205° F safety limits break the L2 
current carrying 240-volt wire going to the elements.  Reset involves locating a small shiny lever or metal 
tab protruding on the side of the black safety limit base.  This small tab is pressed inward approximately 
1/8” to “snap in” the contacts. 

Safety caution

 – the wires and screws have 240-volt potential and can be dangerous.  Turn off 

circuit breakers before investigating or attempting to reset the 205° F safety limits. 

 

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, AGC2 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/temp. 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 
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, outdoor reset and temperature sensing prevent full boiler on

 – by adding a 

temporary

 

jumper between the lower W screw terminal and the upper left “E” tab, all temperature sensing functions 
are bypassed and the control board will step in all the stages.  

Caution:

 This jumper shall not be a 

permanent function, jumper needs to be removed after slab is approaching normal temperature. 

 

REPLACEMENT PARTS 

 

WFSB 

Outlet sensor, 3 ft. 

EB5623S 

Controller, temp. sensing 

UFUSE0440 

2-amp fuse, fast blow (AGC2) 

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. 

5640 

GE 60A circuit breaker 

5639 

GE 30A circuit breaker 

5652 

Square D 60A circuit breaker 

5650 

Square D 30A circuit breaker 

EB5520 

Electric element, 240, 4.5 kW 

5541 

Transformer, 24V, 40VA 

 

Содержание EB-S-13

Страница 1: ...acity and flow changes may cause some internal timing overtemp 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 ACCESSORIES Attached BL001 lists various accessory or option items...

Страница 2: ...Feature 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 Replacement Parts List 11 Troubleshooting Repair Helps 12 Sequence 12 Drawings Basic Mechanical BX501 Piping Install Kits BX502 Hookup BH501 Internal Wiring Schematic BS501 Boiler Accessori...

Страница 3: ...ed as hot boiler This will defeat the Electro Boiler Rewire as required standby boiler is turned on from the brown wires In the case of existing fossil fuel boiler conversions it is assumed the expansion tank valving air bleeder and circulation pump are in place in good operating condition and adequate for the overall system design In the case of new installation radiant floor or baseboard use sta...

Страница 4: ...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 circulating water minimum 2 GPM is required New improved feature the EB ZTS 1 zone controller priority zone now has the abi...

Страница 5: ...oil etc heat only wall t stat connected to operate zone valves see previous section or for single zone the t stat is connected directly to Electro Boiler R and W Floor radiant 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 En...

Страница 6: ...k 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 REGULATIONS WARNING OBSERVE ELECTRIC POLARITY AND WIRING C...

Страница 7: ...staller 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 SUGGESTED MINIMUM SERVICE CLEARANCE BACK 0 INCH 0 ...

Страница 8: ...agm 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 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 pump with the expansion tank move...

Страница 9: ...T ports must be at the top The unit will not function 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 wate...

Страница 10: ...e system pump controlled by these two terminal screws 4 Operating Thermostat two types can be used Connection is at the control board bottom Standard Mechanical connect to R and W bottom right Set thermostat internal heat anticipator to 0 2 Electro Stat ES 24 C RS or ES 24 SRO 3 wire connection required R to R W to W C to common The Electro Stat remote sensor can be extended as required This is a ...

Страница 11: ... user needs to make sure the pressure within the boiler loop does not exceed 30 PSI Careful control of the supply water ball valve opening can take care of this Also at steps 6 and 10 use caution to make sure the building water supply pressure does not spike the system 1 Connect the temporary household water supply source probably hose connection to the water supply connection input NOTE If water ...

Страница 12: ... the two pin shorting device is in the W position the pump is a direct function of R to W input When the two pin jumper 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 Heating Cycle 1 External R to W contact closure 2 Assume the load control receiver devi...

Страница 13: ...s the transformer secondary external items connected to R and the circuit board itself Replace with 2 amp fast blow AGC2 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 temp gauge should be at approximately 10 to 16 PSI at room temperature water and should not rise more than approximately 4 PS...

Страница 14: ...nside 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 temperature sensor functions In other words when jumpering from W to E all four stages are hard on Note Verify pump is operating prior to using the E terminal Since activating...

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Страница 19: ...1 J5 SB 4 3 2 STG STG STG STG 1 SW5 CALIB SENSOR TB1 J4 TEMP TEMP SENSOR RED ST OT COM BLUE BLUE LMC T STAT CABLE TB2 W TB2 R TB2 C 5 NO COM 4 PUMP 2 3 L1 L2 240VAC SOURCE POWER CIRCUIT BREAKER L1 2 120VAC CIRCUIT BREAKER NEUTRAL TB2 R TB2 C TB2 W L1 L2 L2 L1 L2 L1 5 COMMON REQUIRED FOR ELECTRO STAT RELAY CONTACT FOR PUMP 4 DRAWING SHOWN WITH OPTIONAL SINGLE FEED BUS APPLIED MUST ORDER SEPARATELY ...

Страница 20: ......

Страница 21: ...tem for Brand X boilers or dual EB R L E Series EB ZC 4 wiring and convenience interface isolated boiler end switch EB 5415A low cost 2 or 3 zones sheds one boiler stage Mini Boiler enhancement 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...

Страница 22: ...es 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...

Страница 23: ...ade by Electro Industries or its authorized representative Electro Industries will cover reasonable labor costs to repair defective product or product parts for ninety 90 days after installation TWENTY YEAR 20 LIMITED WARRANTY ON BOILER ELEMENTS AND VESSELS Electro Industries Inc warrants that the boiler elements and vessels of its products are free from defects in materials and workmanship throug...

Страница 24: ...ill be null and void 4 The 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 fr...

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