Initial Startup; Domestic Hot Water Production - Viessmann VITOCELL 300-W Installation, Operating And Service Instructions

Vitocell 300-W/V, EVIA/EVIB Installation, Operating and Service
Initial Start-up

Domestic Hot Water Production

1. Fill tank with domestic drinking water.
2. Check heating side and domestic water side adaptors
for leaks. Tighten if necessary.
3. Ensure that DHW tank temperature sensor is properly
inserted into the mounting clamp.
4. Verify proper operation of temperature and pressure
relief valve (T&P valve).
5. Activate power supply.
Ensure the instructions and requirements
of the boiler control and system accessories
are observed.
Domestic hot water production can occur via heating
boiler, a remote heating plant or low temperature heating
via bivalent operation.
The maximum heating supply temperature is 320°F
(160°C), the maximum operating pressure is 150 psig on
the tank.
WARNING
Domestic hot water temperatures over 125°F (52°C)
can cause severe burns instantly or death from scalds.
Children, disabled and elderly are at highest risk of being
scalded. Feel water before bathing or showering.
Temperature limiting valves are available and must be
used where domestic hot water storage tank temperature
exceed 140°F (60°C).
Domestic hot water production
1. Set the desired domestic hot water temperature
(140°F (60°C) for example) on the operating control
of the heating system.
2. The supply temperature for domestic hot water
production is set on the heating system operating
control. It should be approximately 27°F (15°C)
above the desired domestic hot water temperature.
3. For your personal safety, we recommend the
installation of a tempering valve to restrict the entry
of excessively hot domestic hot water into the system.
Hire a qualified heating contractor.
IMPORTANT
Domestic hot water may be preheated or heated to
temperatures over 113°F (45°C) depending on system
energy output and temperature characteristics.
Operation
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