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BTH ULTRA Electric Boilers Installation & Operation manual (Revision: June 2015) 22.
Section 5: 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.
5.1 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 should be around 12
psi.
Turn On the electrical supply to the boiler with
no heat demand from the thermostat(s).
If the boiler is installed in dual energy, adjust
the external device making the selection of the
heating mode for an operation on Electricity
(close contact between E1&E2).
Completely eliminate all the air from the boiler
and the distribution piping system. To do so,
activate the circulating pump without the
heating elements. If the pump is connected
directly on PP terminals of the boiler, it can be
activated by selecting “ON” in the configuration
menu after having pressed for 2 seconds.
Do not set the room thermostat at ON to avoid
the operation of the heating elements.
Adjust the UltraSmart boiler temperature
controller 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
simultaneously the + and – buttons and
maintaining the pressure on the buttons until all
the components are operating
Measure the amperage value 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 slowly increase the outlet
temperature. The heating elements shall
gradually stop as the temperature increases
and gets near the target temperature.
Lower the adjustment of the room
thermostat(s). The heating elements shall stop
and the pump shall stop after the delay set on
the controller.
Check the pressure reading on the gauge of the
unit. It should not be higher than 28 psi when
the distribution system will get to its maximum
operating temperature.
5.3 COMPLEMENTARY CHECKS ON DUAL-
ENERGY INSTALLATIONS
Check the proper operation of the external
authorization signal to operate on electricity or
auxiliary in simulating the operation of the
signal (open or close contact) on E
1
and E
2.
Verify the change of the operating mode.
Check the operating sequence in the “AUX”
mode as decrribed in section 4.11 of the
manual.
Adjust and check the operation of the auxiliary
boiler.
N.B. On initial startup it may take a considerable
amount of time before the water reaches the target
temperature
Further adjustments may be necessary as you use your
boiler and the space heating system.
SAFETY PRECAUTIONS
!
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