VOLTMAX ELECTRIC BOILER Installation and Operation Manual
(
Revised June 2017)
, Page
64.
SECTION 5 : BOILER START UP
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.
After the boiler, has been plumbed and wired, it
is now ready to be set for automatic operation
5.1 FILLING THE BOILER
Open the service valves at the outlet of the
boiler and the cold-water supply valve (fill or
makeup water valve) to boiler.
Open the relief valve on top of the boiler in order
to purge the air out of the boiler tank during the
fill process
Leave all shutoff valves open.
Check system for leaks and repair. Purge air
from all the heating distribution zones.
Bleed air from different areas of the heat
distribution system.
Check boiler pressure gage reading. The
indicated pressure should be lower than the
pressure relief valve design rating.
5.2 ADJUSTEMENT OF THE
CONTROLLER OPERATING
PARAMETERS
After the system has been manually purged of
air, and all components (valves, vents,
controllers) have been set properly, the boiler
can be started.
Never operate this boiler until this has been
done.
Consider safety and energy-savings when
adjusting the boiler’s water temperature
. It is
more energy-efficient to maintain a set-point as
low as possible while still meeting heating
needs.
Safety and energy conservation are factors to be
considered when setting the boiler water
operating temperature. The most energy-
efficient
operation
will
result
when
the
temperature setting of the controller is the lowest
that satisfies the heating needs.
Make sure that the input of the operating
parameters of the controller as well as the
adjustable high mechanical limit control of the
boiler corresponding to the values required for
the application.
Adjusting the high limit is possible in
the Limit
Setting
menu. The High temperature limit
should be adjusted from 15 to 20F higher than
the maximum operating temperature.
5.3 STARTUP PROCEDURE
Before starting the boiler, make sure that the
heating distribution design is made so that the
heating elements will come on only when water
is circulating in the boiler.
1) Fill the boiler as described in Section 5.1.
2) Set the boiler operating temperature as
described in Section 4.
3) Cancel all heating demand from the
distribution system.
4) Turn on the boiler power breakers
and switch.
5) The main contactors should be activated in
sequence and the controller display shall be
lighted. The heating elements shall not
come on because there is no heat demand
applied to the controller and if there is no
water circulation in the unit.
6) Apply a heat demand. If the boiler target
temperature is higher than the boiler water
temperature, the heating elements shall
come on in sequence more or less rapidly
depending on the differential between the
values.
N.B.
It is normal that the elements be activated
very rapidly during the boiler start-up since this
temperature differential is generally high at this
moment.
WARNING
!
