Windhager DuoWIN, Руководство по сборке

Страница: 11 / 76

11
2. For the Installer
2.2.7 Operating with external control
The following requirements must be satisfied for this interface (accessory MES ZSP W):
– Minimum boiler temperature and start-up relief:
If the burner is on, the consumer pumps (heating circuit and domestic water pumps) may only be turned on at
a boiler temperature of more than 50 °C, and must be turned off at boiler temperatures of less than 45 °C.
– Pump lag time:
A lag time of at least 10 minutes must be observed for all consumer pumps, and a minimum heat consumption
must be ensured during the burnout phase.
– The system-specific settings must be selected so that the operating time of the boiler is a minimum of 1.5 hours,
on average (shorter operating times lead to stronger contamination and wear of the boiler).
a) Heating requirement (setpoint specification) with 2-point controller
The 2-point controller turns the burner ON/OFF with a dry contact via the “external heating requirement”
BioWIN 2 interface.
b) Heating requirement (setpoint specification) with analogue interface
The controller passes the external boiler temperature setpoint via the analogue 0–10 V interface.
2.2.8 Domestic water - wood gasification boiler (hot water tank heating
in summer)
There may still be fuel in the wood gasification boiler after the hot water tank has heated. As a result, the surplus
energy must be dissipated – see 2.2.3 „Heating circuits; Minimum heat consumption.“
2.2.9 Heating water
Attention!
The chemical composition of the heating water must conform with local legislation and meet the
directives, guidelines, and s
tandards, e.g., ÖNORM H 5195, VDI 2035, SWKI BT 102-01.
Applicable for Austria (excerpt from ÖNORM H 5195):
a) According to ÖNORM H 5195 (2010 edition), the condition of the heating water must be checked every 2 years
by a heating technician in order to avoid corrosion and sediment accumulation in the heating system.
b) The pipe lines and heating appliances should be thoroughly rinsed before the boiler is connected.
c) To protect the boiler from contamination from the heating system,
installation of a dirt trap is required in old
or existing systems with maintenance stopcocks installed in the return line.
d) If oxygen diffusion or sludge build-up cannot be prevented, the system must be segregated by means of a heat
exchanger.
e) If antifreeze is used, a
minimum volume of 25 % antifreeze
is required, otherwise corrosion prevention is not
guaranteed.