Viessmann GC1 Operating Instructions For The System User

50
Information
Information, reset data
Burner hours run
Burner starts
All data
Service
Terminology
Operating program
Only for constant temperature control of a single boiler
system.
You define the following with the operating program:
■
Central heating and DHW heating
or
■
DHW heating only, no central heating
or
■
Only frost protection for the boiler and the DHW cyl-
inder is active.
No central heating, no DHW heating
Note
An operating program for central heating without DHW
heating is only available for systems without a DHW
cylinder. When central heating is needed, hot water is
generally also required (winter mode).
Heating circuit
A heating circuit is a sealed unvented circuit that con-
nects the boiler and radiators and in which the heating
water circulates.
A heating system may comprise several heating cir-
cuits. For example, one heating circuit for the rooms
occupied by you and one heating circuit for the rooms
of a separate apartment.
Open flue operation
The combustion air is drawn from the room where the
boiler is installed.
Room sealed operation
The combustion air is drawn from outside the building.
Safety valve
Safety equipment that must be installed in the cold
water pipe by your contractor. The safety valve opens
automatically to prevent excess pressure in the DHW
cylinder.
The heating circuits are also equipped with safety
valves.
Solar circuit pump
In conjunction with solar thermal systems.
Appendix
Control of a multi boiler system: Menu overview (cont.)
5798582

Viessmann GC1 Specifications

General

Brand	Viessmann
Model	GC1
Category	Control Unit
Language	English