6
Installing the boiler
Logano plus GB312 – 6 720 806 273 (2013/01)
26
Fig. 27 Installing the condensate drain
[1]
Siphon (condensate trap)
[2]
Condensate pan
[3]
Siphon outlet to neutralizing system or drain line
[4]
Siphon vent
[5]
Cap
[6]
Hole for condensate drain hose
6.10
Filling heating system and checking for leaks
Before commissioning the heating system, check it for soundness to
avoid leaks occurring during operation. Pressurize the heating system
with a pressure that is slightly less than the response pressure of the
pressure relief valve.
pH requirements
• The optimal range of pH for the boiler system fluid is 7.0 to 8.5.
• pH must be checked and recorded at each yearly maintenance in
order to keep the warranty valid.
• Failure to do so will immediately void the warranty on the heat
exchanger.
• Adjusting pH if it is out of range (7.0ph to 8.5pH)
– Flush system with fresh municipal water, run the system up to
temperature for an hour and check pH
OR
– Add Rhomar Protek 922 to the system at a volume of 1 gallon of
Protek 922 to 25 gallons of system volume.
▶ Carry out a leak test in accordance with local authority having
jurisdiction regulations.
Fig. 28 Pressure/temperature gauge
A condensate neutralizer is available as an accessory.
▶ Install the neutralizing system in accordance with the
installation instructions.
▶ Install the trap supplied to the condensate pan drain
outlet.
Condensate may possibly escape through the vent.
▶ Be sure to run the drain pipe from the siphon so that
it slopes downwards.
DANGER:
Danger of fatal accident due to poisoning!
▶ It is essential that you use the boiler's built-in siphon.
▶ Make sure that the condensate from the flue system
drains correctly.
7 747 010 720-23.1RS
1
6
1
2
3
4
5
CAUTION:
Risk of system damage due to scale
formation in the boiler!
▶ Heed the information provided in the
"7747010721_GB312_Water Quality
Requirements.pdf"
CAUTION:
Risk of system damage due to excess
pressure when testing for leaks!
Pressure, control and safety equipment may be
damaged by excessive pressure.
▶ When you carry out a leak test, make sure that no
pressure, control or safety device that cannot be
isolated from the boiler's water chamber is installed.
7 747 010 720-24.2RS
