Important
In the case of DN 65 low-loss headers, an adapter is supplied in
order to be able to close the DN 100 flanges of the collector pipe
kit in the MCA 160 cascade.
3.4.4
Boiler pump
An energy-saving, modulating pump is supplied with cascade systems for
each MCA 160 boiler and any MCA 45-115 45, 65, 90 or 115 boiler.
Important
The boiler connection kits include the required glands.
3.4.5
Boiler connection kits
The boiler connection kit consists of service shut-off valves in the flow, re
turn and gas pipes and also include the pipes between boiler and main
pipes. In a back-to-back configuration, the length of the pipes that go to
the rearmost row of boilers has been adjusted to the correct length. It is
assumed that, when an odd number of boilers are supplied, the larger
number of boilers is mounted on the front. The service shut-off valve in the
return includes a non-return valve, filling and drain cock and expansion
vessel connection, for example. The safety valve is included. Supply and
return T-pieces are supplied for systems with calorifier connection, so the
installer can work from there towards the calorifier. The calorifier should be
boosted by a pump (not supplied, nor the required non-return valve).
Fig.3
Low-loss header DN100
AD-0001427-01
Fig.4
Adapter DN 65 —> DN 100
AD-0000865-01
3 Description of the product
8
MCA
7680446 - v.01 - 14082017
