92
D
Secondary circuit temperature sen-
sor upstream of the instantaneous
heating water heater (LWT)
E
Air vent valve, secondary circuit
F
High limit safety cut-out for the
instantaneous heating water heater
(type AWB-AC only)
G
Instantaneous heating water heater
(only type AWB-AC)
H
Return temperature sensor, secon-
dary circuit
K
Flow temperature sensor, secon-
dary circuit
L
3-way diverter valve for "Heating/
DHW"
M
Secondary pump
N
Secondary circuit drain & fill valve
Overview of internal components: External unit
Danger
Contact with 'live' components
can result in severe injuries.
Capacitors remain 'live' after the
power supply has been switched
OFF.
Wait at least 4 min, until the
capacitors have discharged,
before starting work on the exter-
nal unit.
Troubleshooting
Repairs
(cont.)
5604 692 GB
Содержание AWB 201.B04
Страница 88: ...88 Opening the programming unit 1 3 2 2x Troubleshooting Repairs 5604 692 GB...
Страница 89: ...89 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5604 692 GB Service...
Страница 90: ...90 Placing the control panel in its service position 4x 1 3 2 Troubleshooting Repairs cont 5604 692 GB...
Страница 100: ...100 C B D A Parts lists internal unit Overview of assemblies internal unit 5604 692 GB...
Страница 102: ...102 0001 0005 0006 0004 0002 0008 0003 0007 0008 Parts lists internal unit Casing internal unit cont 5604 692 GB...
Страница 139: ...139 5604 692 GB...