Commissioning The Heating System; Bringing The System Up To Operating Pressure; Checking The Safety Valve - Buderus Logano G115 WS US/CA 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.
V 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 exces-
sive dust and airborne particle levels.
V Do not operate the boiler when there is a
lot of dust in the boiler room, e.g. due to
construction work.
V Install an air filter if the combustion air sup-
ply is very dusty (e.g. due to dirt roads and
paths or dust-generating working environ-
ments 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 dif-
ferentials.
V Only fill the heating system when cold (the
flow temperature should be no more than
100 °F).
V 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.
V Bleed air from the heating system while filling.
6.2

Checking the safety valve

V Make sure that no persons are in the discharge area of
the pressure relief valve.
V 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.
28 Logano G115 WS US/CA - Technical specifications are subject to change without prior notice.
Fig. 27 Pressure/temperature gauge for showing oper-
ating pressure and supply temperature
7 747 019 141-17.1RS