Purging The Gas Pipe - Buderus Logano plus GB312 Installation Manual

7.6

Purging the gas pipe

V Remove blanking plug from testing point for gas supply
dynamic pressure on gas valve inlet flange.
V Fit gas pressure testing nipple.
V Fit hose onto pressure testing nipple.
V Slowly open the gas isolating valve on the back of the
boiler.
V Burn off the escaping gas through a water seal.
V Once no more air is expelled, remove the hose.
V Remove the gas pressure testing nipple.
V Carefully refit and tighten blanking plug in testing point
for gas supply dynamic pressure.
V Close the gas isolating valve on the back of the boiler.
7.7 Making the heating system ready for
operation
V Turn on the fuel supply on the main fuel container and
downstream of the gas valve.
V Switch on the heating system emergency stop switch
(if present) and/or the appropriate circuit-breaker.
7.8 Commissioning the control unit and
burner without programming unit
RC35
Follow the instruction manual for the BC10.
Refer to the GB312 Application Manual for AM10 start-
up instructions.
If the boiler is not being used with an RC35 programming
unit, it can be commissioned using a PC running the Log-
amatic Eco-Soft 400/EMS software and a Service Key.
Please contact Buderus for more detailed information.
7.9 Commissioning the control unit and
burner with programming unit RC35
7.9.1 Boiler intended to be used with Logamatic
4000
If the boiler is subsequently to be run in conjunction with
a Logamatic 4000 programming unit, the following oper-
ations must be carried out:
V Switch off the Logamatic 4000 programming unit.
V Use the RC35 programming unit.
V Continue commissioning procedure as described in
Section 7.9.3.
Logano plus GB312 - Technical specifications are subject to change without prior notice
Recommissioning the heating system
1
2
Fig. 40 Purging the gas pipe
1 Pressure testing nipple for testing gas supply dynamic
pressure and purging gas valve: Honeywell V4730C
2 Blanking plug
7
7 747 010 720-56.1RS
45