Commissioning The Heating System; Bringing The System Up To Operating Pressure; Checking The Safety Valve - Buderus Logano G115/3 WS Installation And Service Instructions Manual

6

Commissioning the heating system

6 Commissioning the heating system
This chapter describes the initial start-up procedure regardless of the
installed control device.
▶ Complete the start-up protocol during this process
( Chapter 6.10, page 33).
Further information on boiler room layout and clearances, combustion
air requirements and venting systems and boiler operational
requirements can be found in
 Chapter 2.8, page 9.
CAUTION: Risk of boiler damage from excessive dust
and airborne particle levels.
▶ Do not operate the boiler when there is a lot of dust in
the boiler room, e.g. due to construction work.
▶ Install an air filter if the combustion air supply is very
dusty (e.g. due to dirt roads and paths or dust-
generating working environments such as quarries,
mines etc.) or contains airborne seeds from
composite plants.
6.1

Bringing the system up to operating pressure

Bring the system up to the normal operating pressure before
commissioning.
CAUTION: Risk of damage to system due to material
stresses caused by temperature differentials.
▶ Only fill the heating system when cold (the flow
temperature should be no more than 100 °F).
▶ Top up the heating water or drain via the boiler drain valve until the
required operating pressure has been reached: minimum 15 psi,
maximum 30 psi pressure.
▶ Bleed air from the heating system while filling.
28
6.2

Checking the safety valve

▶ Make sure that no persons are in the discharge area of the pressure
relief valve.
▶ 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 can be damaged by excessive pressure.
Fig. 26 Pressure/temperature gauge for showing operating pressure
and supply temperature
Logano G115 WS US/CA – 6 720 813 418 (2019/09)
7 747 019 141-17.1RS