Weil-McLain Series 2 Manuale Utente

Part number 550-100-027/0404

3

Boiler service and maintenance —

•

To avoid electric shock, 

 before

performing maintenance.

•

To avoid severe burns, 

 before performing

maintenance.

•

You must 

 the boiler as outlined in this manual and have the

boiler 

 to ensure boiler/system reliability.

Boiler operation —

•

Do not block flow of combustion or ventilation 

 to boiler. This

boiler is equipped with a control which will automatically shut down
the boiler should air or vent be blocked. If vent or air blockage is
easily accessible and removable, remove it. The boiler should attempt
to restart. If blockage is not obvious or cannot be removed, have the
boiler and system checked by a qualified service technician.

•

Do not allow contaminated air to enter the boiler air inlet pipe. See
page 4 for details.

•

Should 

 occur 

, do not

turn off or disconnect electrical supply to boiler. Instead, 

 at a location 

.

•

.

Immediately call a qualified service technician to inspect the boiler
and to replace any part of the control system and any gas control, which
has been under water.

Boiler water —

•

Have boiler water chemistry checked at least annually by a qualified
service technician.

•

DO NOT use 

 cleaning or sealing compounds in

boiler system. Gaskets and seals in the system may be damaged. This
can result in substantial property damage.

•

DO NOT use "

" or "

".

Serious damage to boiler, personnel and/or property may result.

•

Continual fresh 

. Mineral build-

up in boiler heat exchanger reduces heat transfer, overheats the metal,
and causes heat exchanger failure. Addition of oxygen can cause internal
corrosion in system components. Leaks in boiler or piping must be
repaired at once to prevent makeup water.

•

. Thermal shock can cause boiler

heat exchanger to crack.