Beretta POWER PLUS Installation Instruction page 12

Confi guration with injection pumps
Boiler discharge head: 6 mWC
Boiler fl ow-rate: 2 m
Recommended ijection pump.
SE
P
Configurazione con circolatore di anello e valvole sugli elementi termici (*)
Boiler discharge head: 7 mWC.
Boiler fl ow-rate: 2 m
12
SE
V2
(*) With this configuration the pump in the low temperature circuit is managed externally by a
thermostat (see parameter 34 on page 59).
b
Install probes SZ1, SZ2 and SB in a probe socket (outside of the boiler).
/h for each pump.
3
SZ1
P
/h for each heating unit.
3
PB - DHW pump
PZ1 - Pump in zone 1 (high temperature)
PZ2 - System pump
V2
V2
SZ1
PZ2
PB - DHW pump
PZ1 - Pump in zone 1
(high temperature)
PZ2 - Pump in zone 2
(low temperature)
V2 - Two-way valve
(accessory)
PB
PZ1
PZ2
SZ2 50°C
30°C
- Two-way valve (accessory)
PB
PZ1
SZ2
50°C
30°C
SZ1 - Probe in zone 1
SZ2 - Probe in zone 2
SB - DHW probe
SE - Outside probe
80°C
60°C
SZ1 - Probe in zone 1
SZ2 - Probe in zone 2
SB - DHW probe
SE - Outside probe
80°C
60°C
SB
SB