Install Instructions

42
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 2012/10
We reserve the right to make any changes due to technical modifications.
Placing the boiler in operation9
9 Placing the boiler in operation
This chapter describes the initial start-up procedure
regardless of the installed control device.
z Complete the start-up protocol during this process
(Î Chapter 9.9, page 46).
Further information on boiler room layout and
clearances, combustion air requirements and venting
systems and boiler operational requirements can be
found in Î Chapter 3.2, page 8.
9.1 Setting the operating pressure
Set the operating pressure required before initial start-
up.
z Adjust the red pointer of the pressure gauge to the
required operating pressure, i.e. at least 15 psi
(applicable to sealed systems).
z Top up the heating water or drain via the boiler fill and
drain valve until the required operating pressure has
been reached.
z Vent the heating system during filling.
9.2 Check pressure relief valve
z Make sure that no persons are in the discharge area
of the pressure relief valve.
z Raise the lever on the pressure relief valve.
The pressure relief valve must open and release
pressure. If the pressure relief valve does not discharge,
it must be replaced, because system components may
be damaged by excessive pressure.
CAUTION!
BOILER DAMAGE
due to excessive dust and air
contamination.
z Do not operate the boiler under very
dusty conditions, e. g. caused by
building work inside the installation
room.
z Install an air filter if the air supply is very
dusty (for example from unmade roads
and tracks in dusty working
environments, such as quarries, mines
etc.) or airborne seed from blossoms.
Fig. 59 Pressure/temperature gauge for showing operating
pressure and feed temperature
CAUTION!
SYSTEM DAMAGE
due to material stress as a result of
temperature differentials.
z Fill the system with cold water (the flow
temperature should be no more
than 100 °F).