INSTALLATION
Commissioning
22 |
TWS, TWG
11. Commissioning
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Check the pipework and connections for leaks.
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Visually inspect the appliance for leaks.
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Open the shut-off valves.
Venting the DHW pipework
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Open a nearby dHW draw-off point until the pipework is
free from air.
Filling and venting the heating system
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Fill and vent the central heating system according to the
heat generator operating and installation instructions.
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Open the thermostatic valves of the connected radiators.
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draw off hot water to make water flow through the heat
exchanger.
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Open the air vent screw (see chapter "Settings") until
water runs out.
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Bleed the connected radiators.
Checking/adjusting the appliance
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Check the outlet temperature and adjust if necessary (see
chapter "Settings").
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Check the appliance function.
12. Settings
Checking the outlet temperature / adjusting the
temperature controller
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Open a dHW draw-off point until approx. 8 l/min of hot
water runs out. Set the temperature controller for dHW
heating to position 7.
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Measure the temperature of the water running out. If the
outlet temperature does not correspond to the required
temperature, you can adjust it at the temperature control-
ler. The setting range is approx. 40-60 °C.
13. Appliance handover
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explain the appliance function to users and familiarise
them with how it works.
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Make users aware of potential dangers.
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Recommend taking out a maintenance contract.
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Hand over these instructions.
14. Maintenance
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Remove the casing door.
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Shut off the heating flow, heating return and the cold
water supply.
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Clean the strainer in the dirt filter.
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Visually inspect the appliance for leaks.
Completing maintenance work
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Open the shut-off valves required for operation.
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Check the condition of the appliance and clean off any
external dirt.
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If necessary, vent the heating system.
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Check the appliance function.
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Check the appliance for leaks.
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Refit the casing door.
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Log the inspection/maintenance work performed.
15. Troubleshooting
Problem
Cause
Remedy
dHW does not heat up.
Shut-off valves are
closed.
Check that all shut-off
valves in the appliance
are open.
The strainer in the dirt
filter is contaminated.
Check that the strainer
in the dirt filter is free
from contamination.
The heat exchanger is
blocked.
Check whether the heat
exchanger is blocked.
Replace or clean it
with suitable cleaning
agents.
dHW intermittently
does not heat up.
The central heating
pump rating is incor-
rect.
Check the rating of the
central heating pump.
The flow rate of the
heating system is incor-
rectly set.
Check the flow rate.
The start time of the
heating system is incor-
rectly set.
Check the start time
of the central heating
system.
