BTH Electric Boilers USE & CARE MANUAL
(Revision Jun 2014)
, Page
10.
START UP OPERATION
Before operating this boiler, be sure to read and follow these instructions, as well as the warnings
printed in this manual. Failure to do so can result in unsafe operation of the boiler resulting in
property damage, bodily injury, or death. Should you have any problems reading, following or
difficulty in understanding the instructions in this manual, STOP, and get help from a qualified
person.
Do not turn on the boiler unless it is filled with water. Do not turn on the boiler if the cold water
supply shut-off valve is closed.
Preparatory step
Make sure that all the piping and
electrical connections have been made.
Fill the boiler and the heating system
with water.
Check for leaks.
Check the pressure reading at the
temperature and pressure indicator. It shall
be around 12psi.
Adjust the temperature control(s) to
OFF.
Turn the service switch in front of the
unit to ON
Set the thermostat ON to generate a
heat demand. The pump shall start.
Check that the water is circulating in the
distribution system and that all the air is
expelled.
Temperature control adjustment
Each temperature control has the function to
control one heating element.
Adjust each control to the desired temperature
by turning the knob of the control. The reference
mark for the adjustment is a red dot located
under the knob.
One control (any of the two) shall be set
at the maximum temperature required by the
heating system
The table below gives a good indication of the
temperature value generally required for
different applications.
Applica
tion
Baseboard
s
Cast
Iron
radiators
Warm
floor in
concrete
Warm
floorr
between
joists
Temp.
F
180
F
155
o
F 115
o
F 140
o
F
Set the value of the second control
(Model of 9 to 12kW only) at
approximately 5F below the setting of
the first control.
The indicating lamp(s) on front of the unit shall
come ON as you increase the temperature of
the control(s).
On initial start up it may take a considerable
amount of time before the water reaches the
desired temperature
Further adjustments may be necessary as you
use your boiler and space heating system.
Inspection
Measure the amperage drawn by the
unit. It shall be around the value indicated
on the boiler name plate.
Partially close the isolating valve at the
outlet of the boiler to reduce the water flow
and consequently increase the outlet
temperature . Heating elements shall stop at
a temperature slightly higher than the
selected value on the controls
Lower the adjustment of the room
thermostat(s) The pump shall stop but the
element(s) will stay on if the temperature of
the water is under the setting temp. of the
control(s).
Check the pressure reading at the
gauge on the unit. It shall not be higher than
28psi when the distribution system will get to
its maximum operating temperature.
N.B.: This boiler is designed to be maintained
hot and consequently always ready to receive a
demand for heat all over the heating season. It
will then be normal to occasionally see an
indicating lamp in operation for a few seconds
even if there is no call for heat. It will also be
normal to occasionally see the temperature
value at the boiler gauge higher than the normal
values. This temperature will get back to normal
at the next heat demand.
SAFETY PRECAUTIONS
!
