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BTH ULTRA  Electric Boilers

 USE & CARE MANUAL 

(Revision  April 2011)

,                                                                                  Page 

19.

 

 

4.11 OPERATION IN DUAL-ENERGY: 

In Dual-energy mode, the display will indicate that this 
mode is active in showing the icon  

 

If it is not shown, check the position of the switch 
located at the back of the controller. It must be set to 
“Bi-Energ” position. 
N.B. The controller will have to be reset to register the 
new mode of operation. Just turn the power OFF and 
back ON to the unit. 
 

Operation in Dual-energy with Electric 

When the authorisation signal to operate in electricity is 
received, (close contact between Ec&E2), the following 
icons will be shown. 
 

 

The circulating pump and the heating elements will be 
activated according to the operating parameters 
established earlier. 
 

Operation in Dual-energy with the auxiliary boiler 

When the authorisation signal will be absent (open 
contact between Ec&E2), the following icons will be 
shown. 

                                    

 

 
Upon reception of a heat demand on terminals TT of 
BTH ULTRA boiler, terminals C1&C2 will be energized 
at 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 TT 

terminals and when the auxiliary boiler temperature will 
be lower than the settings of its own temperature 
controls.  
If a three way valve is used on the piping as shown in 
fig.6, it will change position when the contact will close 
on AUX terminals and it will be the end switch of the 
valve that will give the signal to the auxiliary boiler to 
come on. The water flow will then circulate only in the 
auxiliary boiler. 
 

Manual selection for the electricity or auxiliary 
boiler mode. 

If the user wishes to manually select the electricity or 
auxiliary boiler operation, it can be done in following the 
sequence below: 

o

  Push on the 

button for 6 sec. and the 

following icons will appear  

                                         

 

 
The selection of the dual-energy or electric only or 
auxiliary boiler only is made with the + - button. Once 
the selection has been made it will be registered by 
pressing the 

or by waiting for 5sec. 

 
If the electricity only or auxiliary boiler only has been 

selected, the corresponding icon and the 

 icons will 

blink to advise the user that an unusual heating mode 
has been selected. 
 
 
 
 
 

 

 

Summary of Contents for BTH ULTRA 10

Page 1: ...eration and maintenance of this product It is imperative that all persons who are expected to install operate or adjust this boiler should read these instructions carefully Any questions regarding the operation maintenance service or warranty of this electric boiler should be directed to the supplier When all installation steps have been completed insert this installation manual in its original en...

Page 2: ...00 BTH ULTRA 20 20 83 4 88 4 4 X 5KW 4 1 1 4 3 110 BTH ULTRA 24 24 100 0 105 0 4 X 6KW 4 1 1 4 2 150 BTH ULTRA 27 27 112 5 117 5 6 X 4 5KW 4 1 2 6 1 150 BTH ULTRA 30 30 125 0 130 0 6 X 5KW 4 1 2 6 1 0 175 BTH ULTRA 33 33 138 0 143 0 3 X 5KW 3 X 6KW 4 1 2 6 2 0 200 Maximum current for circulator 5 amps 1 6 HP Max Models 6 to 24kW are also certified for Aluminum cables of higher gauge Electrical loc...

Page 3: ...BTH ULTRA Electric Boilers USE CARE MANUAL Revision April 2011 Page 3 Figure 1 Component identification 24 1 2 ...

Page 4: ...n any case 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 vent containing a corrosive atmosphere or high humidity The limited warranty is void when the failure of the electric boiler is due to a corrosive atmosphere 2 3 INSPECT SHIPMENT Inspect the elect...

Page 5: ... water or other non toxic fluid having a toxicity rating or class of 1 as listed in clinical Toxicology of Commercial products 5th edition 3 2 LOCATION The electric boiler should be installed in a clean dry location Long hot water lines should be insulated to conserve water and energy The electric boiler and water lines should be protected from exposure to freezing temperatures The electric boiler...

Page 6: ...IPING INSTALLATION 3 4 1 Type of installation You will find below on figures 2 to 6 typical piping arrangement for the two main types of installation The first being as a self operating unit and the others being coonected to an auxiliary boiler in dual energy Figure 2 Figure 3 ...

Page 7: ...BTH ULTRA Electric Boilers USE CARE MANUAL Revision April 2011 Page 7 Figure 4 Figure 5 ...

Page 8: ...ressure relief valve on the boiler since it will damage and shorten the life of the boiler and may endanger life and property 3 4 3 Pressure relief valve An automatic pressure relief valve must be installed during boiler setup The pressure rating of the relief valve must not exceed 30 psi Connect the outlet of the relief valve to a discharge line going to 6 above a floor drain away of any live ele...

Page 9: ...mperature rise vs flow rate GPM BWTD Model KW 10o F 20o F 30o F 40o F BTH ULTRA 6 6 4 1 2 0 1 4 1 0 BTH ULTRA 8 8 5 5 2 7 1 8 1 4 BTH ULTRA 10 10 6 8 3 4 2 3 1 7 BTH ULTRA 12 12 8 2 4 1 2 7 2 0 BTH ULTRA 15 15 10 2 5 1 3 4 2 6 BTH ULTRA 18 18 12 3 6 1 4 1 3 1 BTH ULTRA 20 20 13 7 6 8 4 6 3 4 BTH ULTRA 24 24 16 4 8 2 5 5 4 1 BTH ULTRA 27 27 18 4 9 2 6 1 4 6 BTH ULTRA 30 30 20 5 10 2 6 8 5 1 BTH ULT...

Page 10: ...or sensor If you wish that the target boiler temperature modulate according to the outdoor temperature the target temperature will increase as the outdoor temperature drops the supplied outdoor sensor will need to be connected to S1S1 terminals It will need to be connected before applying the electrical power to the unit The installation of the sensor enables also to stop the operation of the boil...

Page 11: ...signal to terminals EcE2 of the electric boiler o If the piping installation is made as shown on fig 5 then without three way valve install an 18ga two wire cable between boiler terminals AUX and the TT terminals of the auxiliary boiler o N B Le capacity of the AUX contact is 2A 24Vac max o See the operating sequence in Dual energy at section 4 11 o If the installation is made as shown on fig 6 th...

Page 12: ...BTH ULTRA Electric Boilers USE CARE MANUAL Revision April 2011 Page 12 Figure 12 Figure 13 ...

Page 13: ...ications where the 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 q Fixed boiler temperature set point the outdoor sensor shall not be installed Or q Outdoor reset 4 2 DISPLAYED INFORMATION The electronic control uses an LCD display to make all adjustments and to visualize the operat...

Page 14: ...ed to access the configuration menu and confirm a selection The buttons are used to select an item or adjust a value The button enables the illumination of the display under two different modes The default mode will enable the illumination of the display for a period of 10 sec each time a button is pressed If the is pushed the light will be continuously illuminated Just press the button to change ...

Page 15: ...er target temperature will increase On a call from the room thermostat the circulating pump will start and the boiler will activate the number of stages required to get to and maintain the outlet boiler temperature near the target temperature established by the controller according to the outdoor temperature A rotation of the stages based on an equal time period of operation is provided N B The su...

Page 16: ...hermic heat pump where we do not want the electric boiler to be operating unless the outdoor temperature drops to a selected degree 4 8 CONFIGURATION OF THE CONTROLLER Since each type of heating distribution system is designed to operate at water temperatures that are particular to its operation the proper configuration of the operating parameters of this particular system is important to maximize...

Page 17: ...adiant Floor between joists 110Fà140F Cast iron radiator 135F à 165F Baseboard 160F à 185F 100F 125F 150F 175F Select the purge period that the pump will be running once the heat demand is completed Select OFF if the heat system is equipped with electric zone valves OFF 15 sec to 60min ON 30sec Select the outdoor temperature at which no heating of the building is required the outdoor sensor has to...

Page 18: ... and will return to normal operation after 5 sec Operation in Boost Option ON1 default setting The controller will engage the Boost program when the heat demand on terminals TT has been maintained for a pre determined period according to the type of selected application Once this period has been reached the Boost icon will appear on the display and the boiler target temperature will start increasi...

Page 19: ...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 TT terminals and when the auxiliary boiler temperature will be lower than the settings of its own temperature controls If a three way valve is used on the piping as shown in fig 6 it will change position when the contact ...

Page 20: ...T UP q 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 check of the operation of all the boiler components could be made by pressing simultaneously the and buttons of the controller and maintaining them pressed until all the components have come ON q Measure the amperage valu...

Page 21: ...pping condition occurs 6 3 TWICE A YEAR q Check for the proper operation of the automatic air purger s and eliminate air from the radiators 6 4 ANNUALY It is recommended that a visual inspection be made on the electrical compartments of the boiler to check the water tightness of the gasket on the element flange and also check for any signs of overheating of the components and wires At the beginnin...

Page 22: ...ng mode modes 2 3 5 5 require an additional sensor Make sure that the required sensor is properly connected to corresponding terminals and that the cable used is not damaged 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 The boiler water temperature at the outlet of the unit BOIL OUT does not get to the BOIL ...

Page 23: ...m the boiler Turn the power OFF to the boiler Open the front and left side panel of the boiler Check the components and electric wires for indications of overheating Replace overheated components and check 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 syst...

Page 24: ...r replaced are warranted for the residual period of the initial warranty on the unit Exclusions This warranty is void and shall not apply if 1 Defects or malfunctions resulting from installation repair maintenance and or usage that are not done in conformity with the manufacturer s installation manual or 2 Defects or malfunctions resulting from installation maintenance or repair that are not done ...

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