Viessmann VITOPEND User Manual

48
Cause Remedy
Heating system fault Proceed as described on page 40.
ë
flashes and "Service" is displayed
Cause Remedy
The time for a service, as specified by
your heating contractor, has arrived.
Proceed as described on page 39.
"Controls locked out" is displayed
Cause Remedy
Control was blocked by your heating con-
tractor.
Your heating contractor can lift this
block.
"External hook-up" is displayed
Cause Remedy
The operating program set at the control
unit was changed by an external device,
e.g. EA1 extension.
No measures required
"External program" is displayed
Cause Remedy
The operating program set at the control
unit was changed over by the Vitocom
communication interface.
You can change the operating program.
What to do if...
ã
flashes and "Fault" is displayed
5592 682 GB

Viessmann VITOPEND Specifications

General

Type	Condensing Boiler
Mounting	Wall-mounted
Max flow temperature	85 °C
Fuel Type	Natural Gas / Propane
Efficiency	Up to 98%
Water pressure	Max. 3 bar
Protection class	IPX4