Honeywell GmbH
5
MU1H-1805GE23 R0207
GB
7. Troubleshooting
8. Accessories
8.1 Connections for external threads
Disturbance
Cause
Remedy
Alwa-Kombi-4 circulation is
interrupted
• Resistance in the leg has
increased
• Check backflow prevention valve
• Check throttle valve
• Temperature is not reached
• Check setting
• Soiling
• Flush out dirt
Drain taper does not close
• Replace bonnet as necessary
Union nut, sealing and red bronze soldering tail-
piece for external threads
DN 15, for 15 mm pipe-Ø VA7400A015
DN 15, for 16 mm pipe-Ø VA7400A016
DN 20, for 18 mm pipe-Ø VA7400A018
DN 20, for 22 mm pipe-Ø VA7400A020
DN 25, for 28 mm pipe-Ø VA7400A025
DN 32, for 35 mm pipe-Ø VA7400A032
DN 40, for 42 mm pipe-Ø VA7400A040
Union nut, sealing and externally threaded red
bronze tailpiece for external threads
DN 15
VA7401A015
DN 20
VA7401A020
DN 25
VA7401A025
DN 32
VA7401A032
DN 40
VA7401A040
Union nut with MAPRESS fitting for external
threads
DN 15, for 15 mm pipe-Ø VA7403A015
DN 15, for 18 mm pipe-Ø VA7403A018
DN 20, for 22 mm pipe-Ø VA7403A020
DN 25, for 28 mm pipe-Ø VA7403A025
DN 32, for 35 mm pipe-Ø VA7403A032
DN 40, for 42 mm pipe-Ø VA7403A040
DN 50, for 54 mm pipe-Ø VA7403A050
DN 65, for 76 mm pipe-Ø VA7403A076
DN 80, for 89 mm pipe-Ø VA7403A080
Draining adapter
for all types and sizes
VA3400A001
Sanpress/Profipress System connection set (red
bronze)
DN 15, for 15 mm pipe-ØVA7404A015
DN 15, for 18 mm pipe-ØVA7404A018
DN 20, for 22 mm pipe-ØVA7404A020
DN 25, for 28 mm pipe-ØVA7404A025
DN 32, for 35 mm pipe-ØVA7404A032
DN 40, for 42 mm pipe-ØVA7404A040
Union nut, sealing and internally threades red
bronze teilpiece for external threads
DN 15
VA7405A015
DN 20
VA7405A020
DN 25
VA7405A055
DN 32
VA7405A032
DN 40
VA7405A040
DN 50
VA7405A050
Thermal actuator
for all sizes, temperature
setting range 50 - 60°C
(122-140°F)
VA2400A002
for all sizes, temperature
setting range 40 - 65°C
(104-149°F)
VA2400B002
Thermal disinfection is supported by thermal actuator
50 - 60°C (OS-No. VA2400A001) with pre-setting between 1.5 and
2.0.
Thermometer
for all sizes 0 - 120 °C
TH07K
Sampling valve
for all sizesonly in conjunc-
tion with drain adapter
VA3400A001
VA3400C001
60
0
20
40
80
100
120