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06/07/2016  

EI508 

 
 

WarmFlo Equipped 

Electric Duct Heater 

 
 
 

 

 

 

 

 

 

 

Size 

 

 

 

 

 

 

 

 

H = 8W x 10D 

 

 

 

 

 

 

 

 

L = 8W x 16D 

 

 

 

 

 

EM-WE ** *5 * 

C = starter plenum 

 
 
 

 

 

kW 

 

 

 

 

Stages 

   10 

9.6 

kW 

   2 

   15 

14.4 

kW 

   3 

   20 

19.2 

kW 

   4 

 

Application

 – total electric systems. 

 

-

 

Air or water source heat pumps 

-

 

Air handler includes refrigerant coil, blower inlet 

-

 

No standby or gas furnace provisions 

 

Utility load control 

– as a total electric application, we assume no utility control or switchover to 

automatic standby.  However, if this is not the case the electrical hookup section suggests wiring for load 
control receiver connection.  If installation also requires switchover to automatic standby furnace, call 
factory for necessary furnace interface module (WF-EM3, WF-LGR3, or WF-EZ3). 
 
To meet the above application, this WarmFlo system comes with a multi-coded chip.  If factory default 
does not match your application, reference HD320 for other setup parameters. 
 

 

 

Summary of Contents for EM-WE1025H

Page 1: ...ol as a total electric application we assume no utility control or switchover to automatic standby However if this is not the case the electrical hookup section suggests wiring for load control receiver connection If installation also requires switchover to automatic standby furnace call factory for necessary furnace interface module WF EM3 WF LGR3 or WF EZ3 To meet the above application this Warm...

Page 2: ...echanical Installation 3 Electrical Hookup 4 Controller Setup or Programming 6 Operation Indicators 8 Installation Checkout 9 Handheld Analyzer Laptop Software 9 Troubleshooting 10 Operational Information 11 Drawings EI503 F1 EI503 F2 EI503 F3 HH310 HH332 ES502 HD320 XX017 ...

Page 3: ...nlet air temperature is 100 F For inlet temperatures greater than 100 contact the factory for special assistance This product is assembled complete with the WarmFlo II controller configured for a total electric application as defined on the cover page Various field or installation settings and decisions are required see the Controller Setup section For information all units are rated at 240 volts ...

Page 4: ...e ARL certification label and manufacturer product liability Electro Industries Inc cannot be held responsible for field modifications incorrect installation and conditions which may bypass or compromise the built in safety features and controls SPECIFICATIONS TABLE 1 Model Nominal kW Current Min CFM Element Cross Section Source CB Internal Fuse Shipping Weight EM WE1025H 9 6 40 1000 8 W x 10 D 50...

Page 5: ... examples of field constructed V deflector 2 Insertion Over Blower Reference Figure 2 this is the preferred installation method if the blower width wheel width is 8 to 10 inches for the H model or 14 to 16 inches for the L model Of greater concern is the opening depth element rack length The element rack must touch the back of the plenum when inserted Again if the plenum is larger than the blower ...

Page 6: ...OT outdoor sensing and ST supply sensing necessary for proper operation and installation of the WarmFlo systems Without proper installation of these probes the WarmFlo system will not operate correctly Outdoor Sensor OT is identified by the longer cable and the metal mounting bracket Determine best location for the OT sensor using the following ground rules o Locate on the outside of the house to ...

Page 7: ...ply add or tap a connection from this yellow wire and route to the WarmFlo Y tab This is the basic turn on or the connection which causes WarmFlo to do its thing Stage 2 typically W or W1 WarmFlo does not incorporate a Stage 2 function there is no termination or connection for this wire Nor is Stage 2 an optional pickup point for any other function related outside of the WarmFlo control requiremen...

Page 8: ...n DT cal NOTE If these factory defaults do not meet your application reference HD320 for more options Dial Settings Left dial switch min warm air The yellow screwdriver adjustment dial sets a floor or level minimum operating temperature The supply temperature will never go below this point independent of outdoor temperature In other words this is the flat horizontal line on the warm air versus out...

Page 9: ...erature rises based upon a decrease in outside temperature The lower the selected value flatter the heat loss curve the higher the operating efficiency longer compressor run cycles The higher the selected value more electric resistance is used to provide a higher comfort warmer air at the room register If set on 7 the elements will be full on at each thermostat heat call Ø 100 4 122 Factory set on...

Page 10: ...to the output connector indicate Stage 1 2 3 and 4 operation Stage 1 is on the right Inside Relay Board Monitor Light COMMENT The relay board activates from the WarmFlo II controller as the WarmFlo II controller interprets the Y input voltage in relationship to both temperature sensor requirements However the Y input also directly controls the Stage 1 triac and the staging relays Whenever the Y in...

Page 11: ...perform this test monitor the red LED on the relay board This LED determines hi limit cycling If the red LED came on and you observed hi limit cycling corrective action will be required to make sure hi limiting does not occur during normal operation o Verify all airflow is through the electric elements proper baffling electric element positioning etc o Increase airflow or determine ducting distrib...

Page 12: ...r when the green LED goes out count to 10 and re energize power supply The terminal blocks for control wire hook up are designed for a wire insertion and screw clamp down If there is no wire connected and the screw is loose the screw may not necessarily make a good electrical contact to the inside components Example if you are jumpering the thermostat terminals without thermostat wire connection o...

Page 13: ...pump s ability to deliver warm air at efficiencies greater than 100 Gas and oil systems are always less than 100 60 through 90 resistance electric Electro Mate is always exactly 100 but the heat pump is always at least 100 20 F or greater up to about 200 for air source Realizing it is to the user s advantage to run the heat pump either continuously or at the longest possible thermostat call cycles...

Page 14: ...s are re adjusted to provide a constant 120 temperature Chip code field programming your unit was supplied with a multi coded program chip one of the selections shown in each Chip Code Reference Table for your application These tables show the various defaults associated with that particular code With WarmFlo II version a number of field re programming possibilities and options exist using either ...

Page 15: ...thin four 4 feet of blower and plenum is larger than blower opening you MUST follow this drawing in detail AIRFLOW BLOWER MEF 4383 RELEASED 1 1 07 16 02 1 1 DECAL LAYOUT EI503 F1 DUCT HEATER LARGE PLENUM APPROVED DOCUMENT DATE SHEET DOCUMENT NUMBER DRAWING STATUS CHECKED VIEW DRAWING TYPE SCALE PART ASSY MODEL NUMBER SOURCE DOCUMENT DRAWN MONTICELLO MN 55362 ELECTRO INDUSTRIES INC DESCRIPTION UAI9...

Page 16: ...e side V deflectors 2 If the plenum duct is wider than blower opening must use side V deflector call factory for assistance 3 If smaller than 10 plenum can center over blower outlet Cannot be larger than 10 4 Max depth is 10 DO NOT use this insertion method unless element rack completely fills plenum IMPORTANT NOTE When mounting Duct Heater within four 4 feet of blower and plenum is larger than bl...

Page 17: ...5362 ELECTRO INDUSTRIES INC DESCRIPTION Element rack IMPORTANT NOTE When mounting Duct Heater within four 4 feet of blower and plenum is larger than blower opening you MUST follow this drawing in detail AIRFLOW BLOWER Direction of elements must match blower position shown FOR PROPER AIR FLOW Right edge of element duct heat heater MUST line up with right edge of blower UAI937 INTERNAL COMPONENTS RE...

Page 18: ... MINIMUM WARM AIR SW1 LED3 LED4 LED2 LED1 J1 SW4 CAL ODT SW3 COM RED TB1 OT ST HP ODT J3 J2 LED5 T4 C T6 T1 T2 E Y T3 R SW2 LED6 EL ON T E M P E R A T U R E S W 5 WARM AIR DETAIL A SCALE 4 1 CAL SW4 E T6 COM OT RED ST TB1 T4 C T1 T2 Y T3 R DUCT OUTSIDE R E D W H T B L K WHT RED BLK HP ODT E HP ODT SEE DETAIL B 2ND STAGE BLOWER EMERGENCY GREEN SEE MANUAL DO NOT USE 1 4 DO NOT USE DEFROST 2 24VAC HO...

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Page 23: ...OR CONNECTION STAGES 1 4 ARE AT 24VAC WHEN INACTIVE STAGE 1 TRIAC STAGE 2 K3 K4 STAGE 3 KS KS STAGE 4 K1 K2 COMMON 24VAC DURING T STAT CALL o w l c n N w CABLES NOT SHOWN TO J1 ORANGE 1 ll WHT BLU ORG BLK 3 a Cl VIOLET Cl 5 GRAY RED WHT 7 illn ELECTRO INDUSTRIES INC Lfl_ J MONTICELLO MN 55362 DRAWN REFERENCE DOCUMENT MEF BS7O5 CHECKED VIEW DRAWING lYPE SCHEMATIC Cl WARMFLO CONTROL BOARD DESCRIPllO...

Page 24: ...AGES 1 4 ARE AT 24VAC WHEN INACTIVE STAGE 1 TRIAC STAGE 2 K3 K4 STAGE 3 K5 K6 STAGE 4 K1 K2 COMMON 24VAC DURING T STAT CALL CABLES NOT SHOWN TO J1 ORANGE WHT BLU 2 ORG BLK 3 VIOLET 5 GRAY 6 RED WHT 7 illn ELECTRO INDUSTRIES INC Lfl J MONTICELLO MN 55362 r DRAWN REFERENCE DOCUMENT WARMFLO CONTROL BOARD DESCRIPllON DIAGRAM EM WE 5 WIRING SCHEMATIC i 8 MEF BS7O5 I f CHECKED VIEW DRAWING lYPE SCALE PA...

Page 25: ...TAGE 1 TRIAC STAGE 2 K3 K4 STAGE 3 K5 K6 STAGE 4 Kl K2 COMMON 24VAC DURING T STAT CALL CABLES NOT SHOWN TO J1 ORANGE WHT BLU ORG BLK VIOLET GRAY RED WHT illn ELECTRO INDUSTRIES INC Lfl_ J MONTICELLO MN 55362 t DRAWN REFERENCE DOCUMENT Cl 3 Cl WARMFLO CONTROL BOARD DESCRIPllON DIAGRAM EM WE S WIRING SCHEMATIC i 8 MEF BS7O5 I f CHECKED VIEW DRAWING lYPE SCALE PART ASSY MODEL NUMBER N l S_C_H EM A T ...

Page 26: ...N CABLES NOT SHOWN STAGES 1 4 ARE AT 24VAC WHEN INACTIVE STAGE 1 TRIAC STAGE 2 K3 K4 STAGE 3 K5 K6 STAGE 4 K1 K2 COMMON TO J1 p ORANGE WHT BLU ll ORG BLK o VIOLET 3 GRAY 0 0 0 24VAC DURING T STAT CALL RED WHT 0 0 illn ELECTRO INDUSTRIES INC Lfl_ J MONTICELLO MN 55362 t DRAWN REFERENCE DOCUMENT DESCRIPllON WARMFLO CONTROL BOARD DIAGRAM EM WE 5 WIRING SCHEMATIC i 8 MEF BS7O5 I f CHECKED VIEW DRAWING...

Page 27: ... but now there is a dial which allows the selection of your desired chip code no longer need to order a new chip when reconfiguring WarmFlo Analyzer and PC software are still usable with this new updated module The chart below details the new module as it pertains to the various chip codes Various Chip Codes Mode dial SW6 HPDH 0 HPDF 1 HPEL 2 AH 2 EMA 3 EMW 4 EBA 5 EBW 6 AHS 7 A 7 B 7 C 7 D 7 E 7 ...

Page 28: ...s essentially the same as DT Flat and again all four stages do not automatically go to full on Staging Disable Temperature in all OT active sensor applications DT cal there is a setup program temperature to hold off each stage for warmer heating conditions In other words the OT sensor must be reporting a temperature below these values before the stage is allowed to come on In WarmFlo Analyzer or P...

Page 29: ...g time greater than the programmed MU 3 initial minutes the system automatically switches to standby MU 00 is a disable setting The amber LED on the main WarmFlo board will correctly follow electric or standby On the Interface module EZ3 etc the gas call LED also will be on but the utility off peak LED remains on Electro Mate or strip heat undersizing there are provisions within WarmFlo and within...

Page 30: ... applications Analyzer or PC software can disable this function As an added non freeze safety feature the program counts these 5 minute resets If the count reaches 40 200 minutes and each time the ST is still less than 80 the system will revert back to electric to bring up the temperature of the building one thermostat cycle only Delay transfer from electric to standby because there are a multitud...

Page 31: ...lsing mode Basically the appropriate sensor is set internally to a default value and there will be an attempt to cause the electric heat output to go DT Flat OT sensor approximately 1 10 second blip every second ST sensor two 1 10 second blips every second Both bad second on and second off alternating Bad sensor default heating when above condition is detected electric unit has limited staging out...

Page 32: ... is smart enough to know it is no longer the original chip and that specific physical board from this time forward must be under the control of the PC software Handheld However a new totally different coded chip with the same or different revision date will automatically wipe out any of the previous setups and can restart the same physical board based on the defaults within this newly added or dif...

Page 33: ...ystem can only deliver greater than 100 if it s running let it run Because of the WarmFlo design concept and its internal brain the heat loss curve diagonal lines below allows the compressor to operate with a minimal amount of electric resistance supplement or temperature boost Heat loss curve within the brain of the WarmFlo controller is a relationship of supply temperature ST to outdoor temperat...

Page 34: ...g the higher the overall operating annual efficiency the higher the setting the warmer the air at the register Chip code field programming your unit was ordered and supplied with a coded program chip one of the selections shown in each Chip Code Reference Table for your application within the various colored page sections These tables show the various defaults associated with that particular code ...

Page 35: ...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...

Page 36: ...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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