Riello BAG2 MIX CLIMA, Instructions For The Installer And The Technical Assistance Service

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37
HYDRAULIC CIRCUIT HYDRAULIC CIRCUIT
HYDRAULIC CIRCUIT HYDRAULIC CIRCUIT
HYDRAULIC CIRCUIT
The maximum length of plumbing connections
between the boiler and theBAG
2 MIX unit must
not exceed 15 m.
E - Inlet (3/4”)
U – Outlet (3/4”)
MD – Delivery, direct system (3/4”)
Mmix – Delivery, mixed system (1”)
Rmix – Return, mixed system (1”)
RD –
Return, direct system (3/4”)
GENERAL
E U
MD
Mmix
Rmix RD
C C C C CIRCULATION UNIT IRCULATION UNIT IRCULATION UNIT IRCULATION UNIT IRCULATION UNIT
The BAG 2 MIX is fitted with two circulation units, the per-
formance data to be used to size the system, is shown in
the graph.
When starting up for the first time, and at least once a
year, it is advisable to check the pump units shaft
rotate. This is necessary because, especially after
lengthy periods of inactivity, deposits and/or residue
may stop it rotating freely.
Do not run the circulation units without water.
Where present in high and low system flo regulator
devices (thermostatic electrical or motorized zone
valves) it is better to inster a by pass on the collectors.
CIRCULATOR RESIDUAL HEAD
HIGH TEMPERATURE SYSTEM
CIRCULATOR RESIDUAL HEAD
LOW TEMPERATURE SYSTEM
1 - first speed
2 - second speed
3 - third speed
1 ( ) first speed with close mix valve
1 ( ) first speed with open mix valve
2 ( ) second speed with close mix valve
2 ( ) second speed with open mix valve
3 ( ) third speed with close mix valve
3 ( ) third speed with open mix valve
3
1
2
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
0 200 400 600 800 1000 1200 1400 1600 1800 2000
residual head(m.C.A.)
Capacity (l/h)
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
5,5
6,0
6,5
7,0
7,5
0 200 400 600 800 1000 1200 1400 1600 1800 2000
1
2
3
residual head (m.C.A.)
Capacity (l/h)