Truma Combi 4 Connections
hainzy and one other contributor
Last updated on Oct 25, 2025
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Community-Contributed Guide
An awesome member of our community made this guide. It was not created by iFixit staff.
Introduction
Go to step 1 ↓In this guide, I'll show you the connections of the Truma Combi 4.
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Hot water outlet (after boiler) 10mm
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34020-64000 Hot Water Connection Elbow 10mm/12mm Uni Quick
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Cold water inlet (before boiler) 10mm
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34020-16200 Cold Water Connection Elbow 10mm/12mm Uni Quick
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Gas Inlet
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Recirculating Air Inlet
Ask FixBot
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Combustion Air / Exhaust Gas
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Combustion Air Inlet
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Heater / Recirculating Air Outlet
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To reassemble your device, follow the steps in reverse order.
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2 Guide Comments
hallo hainz
weisst du vieleicht was der Gasanschluss für ein Gewinde hat?
Gruss Beat
