ENGLISH
46
Unit type
System conditions
Recommended
control system
Heating-/ventilation- and air conditio-
ning systems with a resistor in the gene-
rator/distributor circuit
≤
25% of the re-
sistance in the transfer part (heating
ra thermostatic valve)
Circulation systems for drinking water
with a resistor in the generator circuit
≤
50% of the resistance in the ascanding
pipe
1. Two-pipe systems with thermostatic/zone valves
and high consumer authority
x
H
N
≤
2m
x
Converted gravity systems
x
Retrofitting to large temperature spread (e.g.
long-distance energy)
x
Low pressure losses in the system parts through
which the total volume flows (boilers/refrigera-
ting machines, poss. heat exchangers, distribu-
tion line up to 1st junction)
2. Primary circuits with low pressure losses
3. Underfloor heating systems with thermostatic or
zone valves
4. Single-pipe systems with thermostatic or branch
shut-off valves
5. Circulation systems for drinking water with ther-
mostatic controlled branch shut-off valves
∆
p-c
Heating systems
Circulation systems for drinking water
1. Two-pipe systems
x
Pump installed in the flow pipe.
x
Flow temperature controlled by atmospheric
conditions.With increasing flow temperature
the flow rate will be increased.
2. Single-pipe systems
x
Pump installed in the return pipe.
x
Constant flow temperature.With increased re-
turn temperature the flow rate will be lowered.
3. Primary circuits with condensing boiler
x
Pump installed in the return pipe. With increa-
sed return temperature the flow rate will be lo-
wered.
4. Circulation systems for drinking water with ther-
mostatic controlled branch shut-off valves or
constant flow rate.
With increased circulating temperature the flow
rate will be lowered.
∆
p-T
Heating-/ventilation- and air conditio-
ning systems
Circulation systems for drinking water
1. Constant flow rate
Heating systems
1. All systems
x
Pump installed in the flow pipe.
x
Flow temperature will be lowered in light loads
periods (e.g. night).
x
Pump runs 24h without external control.
Regulator-
mode
Night setback
mode
“Autopilot“
Summary of Contents for Wilo-Stratos -Z
Page 2: ...Fig 1a Fig 1b Fig 2a Fig 3 Fig 2b...
Page 3: ...Fig 5 Fig 4 Fig 6 Fig 7...
Page 4: ...Fig 8 Fig 9 Fig 11 Fig 10 Fig 12...
Page 6: ...Fig 15 Fig 15 LON Fig 15 PLR Fig 15 SBM Fig 15 Ext Min Fig 15 Ext Off...
Page 14: ...DEUTSCH 8 Displaylage horizontal vertikal Lageeinstellung in Men punkt 3...
Page 41: ...ENGLISH 35 Display position horizontal vertical Position setting in menu point 3...
Page 95: ...NEDERLANDS 89 Display richting horizontaal vertikaal Instelling van de richting in menu punt 3...
Page 118: ......
