NIBE-BIAWAR HK 200M, Руководство по установке

Страница: 28 / 36

28 HK 200M
8 Service
Maintenance service
IMPORTANT
Maintenance service must only be performed by per-
sons with the required technical knowledge.
When replacing components in HK 200M, use exclu-
sively original spare parts.
Emergency mode
Emptying the DHW tank.
Emptying the heating system
Emergency mode is used in the event of problems
with operation and during maintenance service. In
this mode, the volume of domestic hot water is lim-
ited.
A syphon principle is applied to empty the domestic
hot water tank. This can be done via the drain valve
on the pipeline supplying cold water, or by placing the
hose at the cold water connection.
In order to make maintenance of the heating system
easier, the system must fi rst be emptied using the fi ll-
ing valve.
1. Connect the hose to the bottom valve for heating
medium fi lling.
2. Open the valve to empty the heating system.
Emergency mode is switched on by appropriately set-
ting the switch.
(SF1) in the mode „ ”. This means that:
•
Status control is on in yellow.
• The display is not on, and the controller is not
connected.
•
Temperature at the fl ow-through heater is con-
trolled by the thermostat (T1).
• Only the circulation pumps and the electric heat-
ing module are on. The capacity of the electric
heating module in emergency mode is set on the
card (AA1).
IMPORTANT
When emptying the side of the heating medium / heat-
ing system, remember that the pipes might be fi lled
with hot water. There is a risk of burning your skin.
Chapter 8 |
Service
T1