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When 100 kW are no longer sufficient to heat the
network, it is possible to combine several B series
RVA 47 regulators in order to achieve cascades fea-
turing up to 4 THR 10-100 boilers.
To do this, each RVA 47 must be identified and one
of them must be designated as the master (to which
will be linked the only outside sensor, the only cas-
cade flow sensor, and the only cascade return sen-
sor). The other RVA 47s (unit address greater than
1) are slaves.
The master RVA 47 regulator sets the operation of
the network pump and manages the cascade set-
ting.
&200,66,21,1*
When commissioning a cascade installation with se-
veral THR 10-100s, each THR 10-100 must be com-
missioned one by one, and to check the correct
operation of the cascade control.
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FDWLRQVFDUHIXOO\
&20081,&$7,2135,1&,3/(
To ensure correct communication between each re-
gulator, each RVA (RVA 46 and RVA 47) must be
addressed (see paragraph 5 - section IX - CASCA-
DE OF SEVERAL THR 10-100).
By default:
- the heat production regulators (RVA 47) must be
on segment 0,
- the heat distribution regulators (RVA 46) must be
on a segment between 0 and 14 (for example all
the RVA 46s on segment 1).
!
Unit addressing
Segment/Adresse
THR 10-100
LPB
0/1
1/1
1/2
THR 10-100
ZH 46
ZH 46
To other
ZH 46
control boxes
LPB
0/2
1/3
1/4
1/5
1/6
1/...
To other
THR 10-100
(4 maximum)
59$
59$
'% 0% $ 0'
'% 0% $ 0'
PPS
59$
59$
'% 0% $ 0'
'% 0% $ 0'
59$
'% 0% $ 0'
2&,
/*0
59$
2&,
/*0
59$
/*0%08
67
67
/*0%08
PPS
59$
59$
'% 0% $ 0'
'% 0% $ 0'
59$
'% 0% $ 0'
2&,
/*0
59$
2&,
/*0
59$
/*0%08
67
67
/*0%08
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