Viadrus K4 - Boiler Electrical Wiring; Main Electrical Components; External Sensor Connections

Servicing
32
10.9 Boiler Electrical Wiring
10.9.1 Main components of boiler electrical equipment
Fig. . 15
10.9.2 Connection of the higher-level regulation and external boiler sensors
Fig. . 16 Terminal for a boiler
Outside sensor 10 kΩ
THERMOSTAT
Opentherm
thermostat
sensor TV 10 kΩ
(option K4G 3)
flue gas
temperature sensor
exchanger sensor
emergency
thermostat
output water sensor
NORDGAS
TPO1BH1REV
fan FIME
PX 118 - K4GXH24XX
PX 128 - K4GXH33XX
Hydroblock OTMA options
combination
electrode
sensor TV (option K4G2)
NORDGAS
TPO2BHIREV
Option K4G1
- pump: Wilo
connector
- pressure gauge
sensor: Lumberg
Option K4G2
- pump: Wilo connector
- pressure gauge sensor: Lumberg
- flow switch: 2 x 6,3
- three-way valve: 3 x 6,3
- exchanger 14 plates - K4GXH24XX
exchanger 18 plates - K4GXH33XX
Option K4G3
- pump: Wilo connector
- pressure gauge sensor:
Lumberg
- three-way valve: 3 x 6,3
gas valve Honeywell
VK8025VE1003B
NEXSYS S4962V3224
output water sensor
NORDGAS
TPO1BH1REV
exchanger ISOTHERMIC
3+1 - K4GXH24XX
4+1 - K4GXH33XX
Venturi tube
45900444B - 003B - K4GXH24XX
45900444B - 002B - K4GXH33XX
BTr Room thermostat
B3 Hot water sensor (TV)
B9 Outdoor sensor
A6
Room device OPENTHERM