To Connect The Shut-Off Valve; To Connect The Electricity Meters; To Connect The Domestic Hot Water Pump - Rotex HPSU Bi-Bloc Ultra Series Installer's Reference Manual

Model (power Connections to backup heater power
supply)
*6V (6V: 1N~ 230 V)
SWB
F1B
1N~, 50 Hz
230 V AC
*6V (6T1: 3~ 230 V)
K5M
SWB
F1B
Q1DI
3~, 50 Hz
230 V AC
*9W (3N~ 400 V)
SWB
F1B
Q1DI
3N~, 50 Hz
400 V AC
F1B Overcurrent fuse (field supply). Recommended fuse for *6V
and *9W models: 4‑pole; 20 A; curve 400 V; tripping class
C.
K1M Contactor (in the switch box)
K5M Safety contactor (in the switch box)
Q1DI Earth leakage circuit breaker (field supply)
SWB Switch box
X6M Terminal (field supply)
RRGA04~08DAV3 + RHBX04+08DA
ROTEX HPSU Bi-Bloc Ultra
4P495262-1B – 2019.10
supply
2 4 6 14
K5M
1 3 5 13
X6M
1 3 5 7
I I I I
2 4 6 8
Q1DI
L N
2 4 6 14
1 3 5 13
X6M
1 3 5 7
I I I I
2 4 6 8
L1 L2 L3
2 4 6 14
K5M
1 3 5 13
X6M
1 3 5 7
I I I I
2 4 6 8
L1 L2 L3 N
NOTICE
Do NOT cut or remove the backup heater power supply
cable.
7.9.10

To connect the shut-off valve

INFORMATION
Shut-off valve usage example. In case of one LWT zone,
and a combination of underfloor heating and heat pump
convectors, install a shut-off valve before the underfloor
heating to prevent condensation on the floor during cooling
operation. For more information, see the installer reference
guide.
1 Connect the valve control cable to the appropriate terminals as
shown in the illustration below.
NOTICE
Wiring is different for a NC (normally closed) valve and a
NO (normally open) valve.
NO
21 28
X2M
X1M
M2S
2 Fix the cable with cable ties to the cable tie mountings.
7.9.11

To connect the electricity meters

INFORMATION
In case of an electricity meter with transistor output, check
the polarity. The positive polarity MUST be connected to
X5M/6 and X5M/4; the negative polarity to X5M/5 and
X5M/3.
1 Connect the electricity meters cable to the appropriate terminals
as shown in the illustration below.
X5M
S2S S3S
2 Fix the cable with cable ties to the cable tie mountings.
7.9.12

To connect the domestic hot water pump

1 Connect the domestic hot water pump cable to the appropriate
terminals as shown in the illustration below.
7 Installation
NC
21 29
X2M
X1M
M2S
Installer reference guide
45