Installation manual

installation manual TWIN 80 EN
14
2.2. GAS
Make sure that the gas pipe work does not contain
dirt, particularly with new pipes.
Failure to install gas-appliances correctly could lead to accidents
and prosecution. It is in your own interest, and that of safety, to
ensure that the law is complied with.
G¾” (male thread)
• The appliance has to be connected in accordance with the
current regulations.
• Supply pipe works to be sized in accordance with relevant
regulations.
• We advise a gas filter be fitted in the gas supply line in order
to prevent contamination of the gas valves.
• Connect the gas pipe to the gas connection positioned under
the appliance in the middle. The appliance is equipped with
male gas thread G¾”.
• Install the gas pipe stress free.
• Include the gas pipe with an approved stopcock.
2.3. WATER
Both of the heat units are parallel jointed to central flow- and return water
collectors.
WATER
G1¼” (male thread)
Connect the central heating flow pipe to pos 1 with G1¼” male
thread of the the collector on the far side.
Connect the central heating return pipe to to pos 2 with G1¼”
male thread of the collector on the nearr side.
2.3.1. Safety valve
The boiler has been provided with a
safety valve of 3.2 bar.
The discharge under the boiler should
determinate facing downwards exterior to
the building in a position where
discharging water will not create danger
or nuisance but remains in a visible
position.
2.3.2. Filling and straining device
On the return collector of the boiler is a connection 1/2”
BSP female thread for the filling and straining device.
Install the filling and draining device,
packed with the boiler, onto this
connection in the central heating return
system. Do not use the safety valve as a
drain. The safety valve may not close
properly after passing contaminated
system water.