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ECO ULTRA Electric Boiler 

Installation, Use and Care Manual 

(Revision June 2017)

, Page 

12.

 

3.6 SYSTEM SETUP 

Figures 2 to 8 indentify and show location of the 
different  components.  They  also  provide  typical 
heating system installation. External components 
location  may  vary  in  order  to  accommodate 
specific  installation  and  local  codes  and 
regulation. 

 
3.6.1 Connecting the boiler 

The boiler heating supply and return connections 
are  located  on  the  left  or  right  side    and  are 

1” 

NPTM  for  Model  50  and  1-

¼’’  NPTM  for  model 

70.  The  connections  at  the  left  or  right  can  be 
used.  The  important  thing  is  that  the  fluid 
circulation must be made from the bottom to the 
top (see figure 1) 
Unions are recommended on the inlet and outlet 
pipes  to  disconnect  the  water  heater  easily  for 
servicing if necessary. 
Dielectric  (insulating)  unions  should  be  used  if 
copper-steel connections are made.  
Insulate all pipes containing hot water, especially 
in unheated areas.  

 

3.6.2 Flow-check valve 

If  the  heating  system  uses  a  single  or  multiple 
circulators without motorized zone valves, 

a flow-

check  valve  must  be  installed

  to  avoid  all 

possibility  of  gravity  flow  and  heat  loss  during 
non-draw  periods.  Modern  circulators  are 
typically provided with spring loaded check valves 
that will provide adequate protection. 
If  the  heating  system  uses  motorized  zone 
valves, these will provide adequate protection.

 

 
3.6.3 Pressure relief valve 

The boiler is delivered with a factory installed tank 
pressure relief valve set at 207 kPa (30 psi).  

NEVER

  replace  the  pressure  relief  valve  by  a 

higher set pressure one.  
Connect  the  outlet  of  the  relief  valve  downward 
toward a safe location. 
Relief  valve  outlet  pipe  diameter must  not  be  of 
smaller diameter than the relief valve outlet. The 
oulet pipe end must be visible in order to observe 
any relief incident and be protected from freezing. 

NEVER cap or plug a pressure relief valve

 

outlet. The pressure relief valve is a safety 
apparatus and preventing its proper operation 
may cause death, injury or property damage. 
 

3.6.4 Expansion tank 

When operating the ECO ULTRA and the heating 
system,  pressure  will  vary  between  83  kPa  and 
193  kPa  (12  psi  to  28  psi).  The  operating 

pressure is affected by the type of heating system 
and the size of the expansion tank installed.  
The  expansion  tank  is  used  to  absorb  the 
increase of water volume from the boiler and the 
system when it is working. 
The  model  selection  should  be  based  on  the 
maximum  working  temperature  and  the  water 
volume  of  the  total  system.  For  example,  a 
system with radiators contains much more water 
volume than a baseboards system. Likewise, the 
ECO ULTRA also contains an important volume 
of water that has to be added : 
 
 

ECO ULTRA 50 : 48 usgal 

 

ECO ULTRA 70 : 71 usgal 

 
With this information, the installator or distributor 
should be able to make an appropriate selection 
for an expansion tank. 
 
Here  are  some  minimal  recommendations  for 
different types of heating systems. 
 

ECO ULTRA 

Baseboards 

Radiant 

floor 

Cast-iron 

radiators 

ECO ULTRA 50 

#30 

#30 

#60 

ECO ULTRA 70 

#60 

#60 

#90 

 
The expansion tank is generally installed on the 
wall or ceiling. It also has to be well supported. 
 

3.6.5 Water pressure regulator 

The boiler should be installed in such a way that 
it can automatically be fed with water in the event 
of a pressure drop.  
The  minimum  pressure  obtained  when  the 
system is cold is generally 12 psi (83 kPa). 
This  accessory  shall  be  equipped  with  one  or 
more check valves to avoid all possibilities of the 
boiler water returning to the potable water supply 
network (local regulation should be applied) 
 

3.6.6 Automatic Air Vent 

The  ECO  ULTRA  has  a  factory  installed  tank 
automatic air vent. This air vent function is to vent 
any air present in the tank. 
For proper operation, do not cap or block the air 
bleeder outlet. 
For proper operation of the heating system, it may 
be  necessary  to add  air  bleeders  to the  heating 
system circuits. 
 

Summary of Contents for ECO ULTRA 12

Page 1: ...oiler in order to ensure your full satisfaction It is imperative that all persons who are expected to install operate or adjust this boiler read the instructions carefully Any questions regarding the operation maintenance service or warranty of this water heater should be directed to the dealer or distributor you purchased it from When all installation steps have been completed replace this instal...

Page 2: ...power supply 13 3 7 2 Heating pump wiring 13 3 7 3 Outdoor temperature sensor 13 3 7 4 Room thermostat wiring 13 3 7 5 Automatic transfer mode wiring 14 3 8 WIRING DIAGRAMS 16 Section 4 ADJUSTMENT OF THE CONTROLLER 18 4 1 INTRODUCTION 18 4 2 DISPLAYED INFORMATION 18 4 3 OPERATION OF THE INTERFACE 19 4 4 OPERATION IN FIXED BOILER TEMPERATURE SET POINT 19 4 5 OPERATION WITH OUTDOOR RESET 19 4 6 PURG...

Page 3: ... 1 00 150 294 21 8 29 2 x 4 5 kW 4 x 5 kW 104 120 1 00 175 1Electrical supply 120 240V or 120 208V single phase L1 N L2 with three 90 C conductors or two conductors L1 L2 if the boiler does not require power to a 120 VAC pump or accessories 2Add the amperage of the circulating pump and other external accessories if they are connected to the boiler max 5A 3A higher cable size could be required In a...

Page 4: ...ectrical mode or automatic transfer mode For both modes it is recommended to use the outdoor sensor supplied with the equipment The outdoor sensor allows the boiler water temperature to be modulated according to the outside temperature It also makes it possible to stop the heating of the electric elements when the outside temperature exceeds a certain temperature The use of these functions makes i...

Page 5: ...where instructions in this manual differ from local or national codes the local or national codes take precedence 2 2 CORROSIVE ATMOSPHERE The electric boiler should not be located near an air supply containing halogenated hydrocarbons or high humidity The limited warranty is voided when failure of the water heater is due to a corrosive atmosphere 2 3 SHIPMENT INSPECTION Inspect the electric boile...

Page 6: ...odels sale in USA have a second limit device manually re settable set at 227 F 108 C If the heating distribution system on which the boiler is installed requires a high limit controller having a lower setting this controller will be added to the system and connected in series with the factory installed limit control 3 2 LOCATION The ECO ULTRA boiler should be installed in a clean dry location Long...

Page 7: ...ENTS Figures 2 and 3 show various components of the ECO ULTRA electric boiler Figures 4 and 6 show some installation drawings of the boiler in the autonomous electrical mode Figures 5 7 and 8 show some installation drawings of the boiler in the automatic transfer mode Figure 2 Components identification and location top right side view Pressure relief valve 30 psi Automatic air vent Temperature and...

Page 8: ... 2017 Page 8 Figure 3 Components identification and location left side view Adjustable feet UltraSmart controller Heating elements Heating return Model 50 1 NPTM Model 70 1 NPTM Electrical components mounting panel Drain valve Heating supply Model 50 1 NPTM Model 70 1 NPTM ...

Page 9: ...perature indicator Drain valve Automatic air vent Air seperaor Service valve Pressure relief valve Union Expansion tank Pressure regulator Thermostatic mixing valve Chaudière au bois ECO ULTRA Back flow preventor TT 120 V EE ECO ULTRA INSTALLED WITH WOOD BOILER AUTONOMOUS ELECTRICAL MODE Legend Outdoor sensor Circulating pump Room thermostat Pressure and temperature indicator Drain valve Automatic...

Page 10: ...Pressure and temperature indicator Drain valve Automatic air vent Air seperaor Service valve Pressure relief valve Union Expansion tank Pressure regulator Thermostatic mixing valve Air to water heat pump ECO ULTRA Back flow preventor EE ECO ULTRA INSTALLED WITH AIR TO WATER HEAT PUMP AUTOMATIC TRANSFER MODE Legend Outdoor sensor Circulating pump Room thermostat Pressure and temperature indicator D...

Page 11: ...ECO ULTRA INSTALLED WITH AIR TO WATER HEAT PUMP AUTOMATIC TRANSFER MODE Legend Outdoor sensor Circulating pump Room thermostat Pressure and temperature indicator Drain valve Éliminateur d air automatique Air seperaor Service valve Pressure relief valve Union Expansion tank Pressure regulator Thermostatic mixing valve Air to water heat pump ECO ULTRA Back flow preventor Cooling system EE ...

Page 12: ...ing NEVER cap or plug a pressure relief valve outlet The pressure relief valve is a safety apparatus and preventing its proper operation may cause death injury or property damage 3 6 4 Expansion tank When operating the ECO ULTRA and the heating system pressure will vary between 83 kPa and 193 kPa 12 psi to 28 psi The operating pressure is affected by the type of heating system and the size of the ...

Page 13: ...o the boiler electric panel PP terminals The boiler control will operate the pump as soon as a heat demand is signalled by the space thermostat 3 7 3 Outdoor temperature sensor If you want the boiler target temperature to modulate according to the outdoor temperature when the outdoor temp will get colder the target temperature will get higher The supplied outdoor sensor will have to be connected t...

Page 14: ...the energy source selected To allow the operation in automatic transfer mode Open the front access panel to the boiler electric compartment Remove the screw at the bottom of the controller raise the upper section of the controller You will see a switch at the back of the controller having two positions ELECT and Bi Energ Position the switch at Bi Energ see fig 9 Install a 2 wire 18ga cable between...

Page 15: ...o allow the renewable energy source to be operated according to its own controls at all times do not use the ECO ULTRA contact of the AUX terminals and when the main renewable energy source is not sufficient to the request closed contact between E1 E2 the heating elements will be activated according to the operating parameters of the controller External signal ...

Page 16: ...ECO ULTRA Electric Boiler Installation Use and Care Manual Revision June 2017 Page 16 3 8 WIRING DIAGRAMS ...

Page 17: ...ECO ULTRA Electric Boiler Installation Use and Care Manual Revision June 2017 Page 17 ...

Page 18: ...he water of the heating system flows directly from the boiler to the heating distribution system Standard parallel Piping system Two operation modes are then offered Fixed boiler temperature set point the outdoor sensor shall not be installed Or Outdoor reset 4 2 DISPLAYED INFORMATION The electronic control uses an LCD display to make all adjustments and to visualize the operation of the system Fi...

Page 19: ...ture of the boiler near the selected target temperature A rotation of the stages based on an equal time period of operation is provided N B The supplied outdoor temperature sensor shall not be connected before applying the electrical power to the unit 4 5 OPERATION WITH OUTDOOR RESET For installation where the boiler target temperature shall modulate in relation to the outdoor temperature when the...

Page 20: ...selected on systems equipped with motorised fast closing zone valves in order to prevent noise from water hammering 15 sec to 60 min delay where the pump will be kept running to enable the pump to circulate water into the system to equilibrate the heat in all the building ON The pump is in continuous operation Required on particular heating distribution systems 4 7 AUTOMATIC HEATING SHUT DOWN When...

Page 21: ...as they were established before the failure Table 5 below shows the presentation sequence of the menus Table 6 CONFIGURATION SEQUENCE OF THE MENU Press on the button for 2 seconds ITEM DESCRIPTION RANGE DEFAULT Choose the units the user prefers to work with F or C F Select the type of heating system on which the boiler will be installed Radiant Floor in concrete Radiant Floor between joists Cast i...

Page 22: ...ler temperature to recuperate Return to normal room temperature after thermostat s night set back program Three Boost operating options are available when the is pressed for 6 sec The icon will appear and the three options ON1 ON2 and OFF will be proposed Press the button to select The controller will register the selected item and will return to normal operation after 5 sec Operation in Boost Opt...

Page 23: ...120volts and the pump will be activated At the same time the contact will close on the AUX terminals to activate the auxiliary boiler This boiler will be activated only when there will be a heat demand to the R W terminals and when the auxiliary boiler temperature will be lower than the settings of its own temperature controls Using the AUX terminals on the ECO ULTRA to allow the start up of the r...

Page 24: ...r as explained earlier and set the purge delay of the pump from On to its normal operation setting The pump should stop 5 2 STARTUP INSPECTION Set the room thermostat ON to generate a heat demand The pump shall start The heating elements shall gradually come on and the boiler temperature will increase N B A rapid activation of all the elements and external components can be done by pressing simult...

Page 25: ...N Make sure that the power supply to the water heater has been turn off at the circuit breaker before attempting any work on the water heater Visual inspection of the water heater electrical cabinet Check for leaks at the heating elements sign of overheating of electrical components and wiring At the beginning of the heating season check for proper operation of the boiler controller circulating pu...

Page 26: ... located in the immersion well located at the top of the elect element compartment Check the resistance value ohms of the sensor It should correspond to the value shown on the table below otherwise it should be replaced Stage 2 is ON but not Stage 1 There is no problem A rotation of the stages is provided to allow an equal time of operation of the stages When stage 3 or 4 comes ON stage 1 or 2 com...

Page 27: ...k supply voltage to the boiler Boiler safety valve is leaking Pressure reading at the indicator shows a pressure above 28psi Pressure is below 28psi The pressure regulator on the distribution system is defective or the expansion tank is too small or defective Replace the safety valve Table 7 Resistance value of the outdoor sensor vs outdoor temperature Temperature Resistance Temperature Resistance...

Page 28: ...100 2PC5024 Transformer 208 240V x 24Vac ZEL400 20842440 40VA UltraSmart controller ZEL100 ULTRA Hi Limit automatic reset switch ZEL200 L6C732 Power Relay 24Vac ZEL100 24ACNO30 Fuse ZEL250 TDMIDJ5 2 poles contactor 24Vac ZEL100 2PC5024 Transformer 208 240V x 24Vac ZEL400 20842440 40VA UltraSmart controller ZEL100 ULTRA Hi Limit automatic reset switch ZEL200 L6C732 Power Relay 24Vac ZEL100 24ACNO30...

Page 29: ...0A24 Transformer 208 240V x 24Vac ZEL400 20842440 40VA UltraSmart controller ZEL100 ULTRA Hi Limit automatic reset switch ZEL200 L6C732 Power Relay 24Vac ZEL100 24ACNO30 Fuse ZEL250 TDMIDJ5 4 poles contactor 24Vac ZEL100 4P50A24 Transformer 208 240V x 24Vac ZEL400 20842440 40VA UltraSmart controller ZEL100 ULTRA Hi Limit automatic reset switch ZEL200 L6C732 Power Relay 24Vac ZEL100 24ACNO30 Fuse Z...

Page 30: ... Page 30 Figure 18 Electrical panel ECO ULTRA 27 29 kW 3 poles contactor 24Vac ZEL100 3P50A24 Transformer 208 240V x 24Vac ZEL400 20842440 40VA UltraSmart controller ZEL100 ULTRA Hi Limit automatic reset switch ZEL200 L6C732 Power Relay 24Vac ZEL100 24ACNO30 Fuse ZEL250 TDMIDJ5 ...

Page 31: ...ng is the lowest that satisfied the needs consistent with the application To find hot water temperature being delivered turn on a hot water faucet and place a thermometer in the hot water stream and read the thermometer The following chart details the relationship of water temperature and time with regard to scald injury and may be used as a guide in determining the safest water temperature for yo...

Page 32: ...ater must be installed in accordance with these instructions and must conform to local or in the absence of local codes with the current edition of the National Plumbing Code and the National Electric Code In any case where instructions in this manual differ from local or national codes the local or national codes take precedence The heat transfer medium must be water or other non toxic fluid havi...

Page 33: ...used Install shutoff ball valves for servicing convenience Use only clean copper or approved plastic pipe for water connections Local codes or regulations shall govern the exact type of material to be used To minimize heat loss during non draw periods a heat trap formed from piping can be used Insulate all pipes containing hot water especially in unheated areas Cap or plug unused connections If th...

Page 34: ... valve Éliminateur d air automatique Air seperator Service valve Pressure relief valve Union Expansion tank Pressure regulator Thermostatic mixing valve Air to water heat pump ECO ULTRA Back flow preventor Cooling system Safety valve Instantaneous water heater RA89 34 21 ECO ULTRA HEAT EXCHANGER OPTION INSTALLED WITH WOOD BOILER AUTOMATIC TRANSFER MODE Legend Outdoor sensor Circulating pump Room t...

Page 35: ...tch downward from the valve to allow complete draining by gravity of the relief valve and discharge line and be no smaller than the outlet of the valve The end of the discharge line should not be threaded or concealed and should be protected from freezing No valve of any type restriction or reducer coupling should be installed in the discharge line Local codes shall govern the installation of reli...

Page 36: ...t operation will result when the temperature setting is the lowest that satisfies the needs consistent with the application The maximum setting for the boiler water supply to the heater coil is 210 F The boiler supply temperature should be from 20 F up to 40 F higher than the domestic water temperature More exactly the boiler supply temperature should be higher than the domestic supply temperature...

Page 37: ... the Hot and Mixed temperature for proper operation To set the thermostatic mixing valve carefully open a hot water tap Protect yourself against the risk of scalding Use a thermometer and measure hot water temperature form the faucet Reduce or increase the hot water temperature by adjusting the valve knob to the proper position Lock the knob at the set temperature Refer to the valve manufacturer s...

Page 38: ...tion Must be manually operated to ensure safe and proper operation Make sure that the discharged water is directed to a suitable drain or some collection method and will not spray onto any person Use lever on the temperature pressure valve to open A steady discharge of hot water should be noticed After releasing this lever the safety relief valve should close and fully shut off this flow If the te...

Page 39: ...eaker and reset Check power supply Scale build up in thermostatic mixing valve or coil If boiler circulator and TURBOMAX temperature controls are operating satisfactory the coil system may have scale coating Clean the coil as described in the Maintenance section Water at faucet is too hot Thermostatic mixing valve temperature setting is too high Lower the temperature setting of the mixing valve Co...

Page 40: ... repair maintenance and or usage that are not done in conformity with the manufacturer s installation manual or B Defects or malfunctions resulting from installation maintenance or repair that are not done in accordance with regulations in force or C Defects or malfunctions resulting from improper installation maintenance or repair done carelessly or resulting from consumer damage improper mainten...

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