13
30AW
3.3 Water connections
The 30AWH__H units are equipped with an integrated hydronic module
that allows fast installation with the aid of a few external components.
The 30AWH__X and 30AWH__NX units, on the other hand, do not have
a circulation pump and expansion vessel. For this reason, they must be
provided outside. In any case, all the necessary protections and valves
are to be inserted in the water circuit inside the unit. Refer to the gure
below for the exact connection of the water pipes.
Installation
3
/Entering water (1” GAS – M)
0 Leaving water (1” GAS – M)
1 Drain water (1/2 ” GAS – F)
/ automatic purge valve
0 ow switch
1 safety valve (outlet 1/2’)
2 temperature probe
3 circulation pump
4 plug to unblock the seizing pump
5 expansion vessel
6 water drain
Unit
30 AWH
004 006 008 012 015
Nominal water ow Std l/s 0,20 0,28 0,33 0,58 0,69
Water loop content
for 30AWH_H units
Min l 14 21 28 42 49
Max l 65 65 65 95 95
Max water loop
pressure
Max kPa 300 300 300 300 300
Filling water
pressure
Min kPa 120 120 120 120 120
Max elevation 30AW
upper
Max m 20 20 20 20 20
/
0
1
/
0
1
3.3.1 Hydronic module
004-006-008 012-015
SM_30AW.indd 13 14-03-2011 14:41:17
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