background image

 

BTH Electric Boilers USE & CARE MANUAL 

(Revision June.2014)

,                                                                                     Page 

4.

 

INSTALLATION 

 
 
The manufacturer’s warranty does not cover any damage or defect caused by installation, or 
attachment, or use of any special attachment other than those authorized by the manufacturer 
into, onto, or in conjunction with the water heater.  The use of such unauthorized devices may 
shorten the life of the boiler and may endanger life and property.  The manufacturer disclaims any 
responsibility for such loss or injury resulting from the use of such unauthorized devices 

 

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 

temperature. 
The  electric  boiler  must  be  located  or  protected 
so  as  not  to  be  subject  to  physical  damage,  for 
example, by moving vehicles, area flooding, etc.  

 

 
The  electric  boiler  should  not  be  located  in 
an  area  where  leakage  of  the  tank  or  water 
connections  will  result  in  damage  to  the 
adjacent  area  or  to  lower  floors  of  the 
structure.    When  such  areas  cannot  be 
avoided,  a  suitable  drain  pan  or  non-
flammable  catch  pan,  adequately  drained, 
and  must  be  installed  under  the  boiler.   
The pan must be connected to a drain. 
NOTE:  Auxiliary catch  pan MUST conform to 
local codes. 

 

 
The  boiler  can  be  mounted  directly  on  a  wall 
with  adequate  screws.  It  needs  to  be  properly 
leveled. 
All models in alcoves. The  ambient temperature 
must not exceed 90F (32C) 
The electric boiler should not be located near an 
air vent blowing  a corrosive  atmosphere or high 
humidity.  The limited warranty is void when the 
failure of  the  electric boiler  is due to a corrosive 
atmosphere.

 

The choice of the mounting position of the boiler 
shall  be  made  in  relation  with  the  required 
clearances  shown  below  and  the  fact  that  the 
electric  element  compartment  of  the  boiler 
needs clearance to allow their replacement. 
°

CLEARANCE  

 

For  adequate  inspection  and  servicing  the 
following minimum clearance is necessary: 

Sides 

4 in. /10cm 

 Electric elements side  

14 in./35cm 

Front side of the boiler 

24 in./60cm 

Back  

0 in./0cm 

 

 

Fig. 2 Mounting position

CAUTION 

WARNING 

Summary of Contents for MINI Ultra 12

Page 1: ...tion 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 envel...

Page 2: ...e Max 5amp 1 6hp of the circulating pump if it is connected directly to the boiler A higher capacity cable an breaker could be required In all cases the local Electrical Code has priority Can be connected to a 208Vac 1ph electrical supply The resulting capacity will be of 75 of the nominal capacity at 240V and the amperage will be of 87 Dimensions Connections Overall dimensions Inlet heating retur...

Page 3: ... in the absence of local codes with the National Plumbing Code and the National Electric Code current edition In any case where instructions in this manual differ from local or national codes the local or national codes take precedence SECURITY CONSIDERATIONS All installations have a maximum design operating pressure limited to 30 psi 207kPa by a safety relief valve Boiler operating temperature ra...

Page 4: ...age of the tank or water connections will result in damage to the adjacent area or to lower floors of the structure When such areas cannot be avoided a suitable drain pan or non flammable catch pan adequately drained and must be installed under the boiler The pan must be connected to a drain NOTE Auxiliary catch pan MUST conform to local codes The boiler can be mounted directly on a wall with adeq...

Page 5: ...ocation in case of discharge The piping diameter used for the discharge piping shall not be smaller than that of the valve outlet No valve of any type restriction or reducer coupling should be installed on the discharge line Local codes shall govern the installation of relief valves Expansion tank The expansion tank must be able to store the required volume of boiler water during maximum design op...

Page 6: ...t allows the unit to be drained for the eventual replacement of a defective component Strainer This component is used to collect potential sediments coming from the distribution system and more particularly from systems made of steel piping and radiators If such sediments accumulate at the bottom of the boiler it could be harmful to the heat transfer of the elements and generate premature failures...

Page 7: ...ceed 5A 1 6HP Multiple pumps zoning applications Components shall be connected in such a way that when a thermostat is calling for heat only the corresponding pump be operated and an auxiliary contact X X closes to give the signal of the heat demand to the boiler otherwise the elements will not be working To do so you will need relays as illustrated below Boiler terminals PP will not be used N B D...

Page 8: ...BTH Electric Boilers USE CARE MANUAL Revision June 2014 Page 8 ...

Page 9: ... The electronic control uses an LCD display to make all adjustments and to visualize the operation of the system OPERATION OF THE INTERFACE The controller uses four push buttons at the bottom of the display to select and adjust the parameters The button is used to access to the configuration menu and confirm a selection The buttons are used to select an item or adjust a value The button enables th...

Page 10: ...alculated by the controller in relation to the parameters selected in the menu and the maximum target temperature required when the outdoor temperature will get to 10F 23C The STD curve corresponds to the default maximum temperature for a typical system and this value can be modified from the MIN to MAX value shown on the following tables The following tables show the values of the target temperat...

Page 11: ...pplies heat to a lodger Systems connected to a geothermic heat pump where we do not want the electric boiler to be operating unless the outdoor temperature drops to a selected degree 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 ...

Page 12: ... 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 be installed 0F à 105F 75F Note1 Once these parameters have been set the controller will automatically return to its normal vi...

Page 13: ...TURE The controller will engage the Boost program when the heat demand on terminals W R 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 increasing very slowly over a pre determined period and up to a pre calculated maximum value unti...

Page 14: ...erminals of the boiler it can be activated by selecting ON in the configuration menu after having pressed for 2 seconds Adjust the UltraSmart boiler temperature controller as explained earlier and set the purge delay of the pump from On to its normal operation setting Set the room thermostat ON to generate a heat demand The pump shall start The heating elements shall gradually come on and the boil...

Page 15: ...outlet of this valve if a dripping condition occurs Twice a year Check for the proper operation of the automatic air purger s and eliminate air from the radiators Annually 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 w...

Page 16: ... the unit is not in short or open circuit Do not install a jumper between S1 S1 when the sensor is not required Check the resistance value ohms of the sensor It should correspond to the value shown on the table below otherwise it should be replaced Check for proper connection of the wires inside the boiler connected to S1S1 and at the controller terminals The display shows Er2 and blinks The contr...

Page 17: ...ipator If available to obtain longer operating cycles Replace defective elements If a boiler water temperature higher is required to satisfy the heat demands of the thermostats a boiler having a larger capacity is required Boiler stays in demand even when the thermostat is not in demand Systems with more than one thermostat On systems with electric zone valves one or many end switches included in ...

Page 18: ...rranty 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 in accordance with regulations in force or 3 Defects or malfunctions resulting from improper installati...

Reviews: