Viessmann VITOCAL 300-G, Инструкции по установке и обслуживанию для подрядчиков

Страница: 30 / 92

30
Plug sXS
Clamps Function Explanation
222.1 Control of mixer motor for external
heat generator
Mixer CLOSE signal Connection values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 0.2(0.1) A
222.2 Control of mixer motor for external
heat generator
Mixer OPEN signal Connection values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 0.2(0.1) A
222.3
222.4 Control of external heat generator
and high limit safety cut-out (on site,
max. 70 °C), to simultaneously switch
off the following components:
■
Secondary pump
■
External heat generator
Floating contact
Note
■
The switching contact is a floating N/O contact that is
closed when a heat demand is issued.
■
Never route extra low voltage (ELV) via this contact.
For that, a relay must be fitted on site.
■
The boiler water temperature sensor in the external
heat generator (plug F20) must capture the average
temperature of the external heat generator.
Connection values (contact load):
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
Connect the high limit safety cut-out:
See the following chapter.
Installation sequence
Electrical connection
(cont.)
6153640
Installation