Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
5 Installation
83311002 1/2018-03 La
28-132
5.4 Oil supply
Observe EN 12514-2, DIN 4755, TRÖI and local regulations.
The oil supply is intended for single pipe suction operation.
An oil filter vent combination is integrated in the appliance.
Oil line
Use a 6 x 1 mm (4 mm internal) line as the supply line to the condensing boiler. an
oversized supply line size leads to an accumulation of air due to low flow velocity.
Check conditions for oil supply
WARNING
Oil leakage caused by excessive flow pressure
The oil filter vent combination could be damaged, oil can escape and cause envir-
onmental damage.
Do not exceed flow pressure of max. 0.7 bar.
Suction resistance
max 0.4 bar
Supply pressure
max 0.7 bar
Supply temperature
max 60 °C
Connect oil line
Connect oil line to oil connection
1
of the appliance.
1
Purge oil supply and ensure it is tight
CAUTION
Oil pump seized due to running dry
Pump could be damaged.
Fill oil supply with oil and purge, if necessary use parameter
73
(program
Pr2
Ensure oil supply is tight.