Specifications

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5.5 Gas installation
Installation notes
The gas supply pipe must be connected to the connection on the unit via a shut-off valve (essential
requirement),whichisinstalledintheimmediatevicinityoftheunit.Whensteelgaspipesareinuse,
itisessentialthatasedimentseparatorbettedbetweentheshut-offvalveandtheunitconnection.
Thefollowingconnectiondatamustbeadheredto:
– Permissible gas operating pressure:
Gas Operatingpressure(mbar)
Nominal Min Max
Natural gas H, E, E(S) G20 20 17 25
Natural gas L, ELL G25 25 20 30
Natural gas HS G25.1 25 20 30
NaturalgasLw G27 20 17.5 23
Natural gas Ls GZ350 13 10.5 16
Propane gas P G31 37 or 50 25 57.5
– The connection material used must be pressure tested and approved for gas installations.
– Donotuseteontapeongaslinepipethreads.AexiblesealantsuitableforusewithNatural
Gas and Propane Gas is recommended.
– Plangassupplypipingsoitwillnotinterferewithremovalofgasvalvesorblowerassembliesand
front or side service doors.
Allinstallationworkmustbecarriedoutinaccordancewiththe applicable local building and in-
stallation regulations.
5.5.1 Performingthegasinstallation
Overview Gas installation
1 Gas supply connection
Model Connection
GS 40 BSP1/2"
GS 80 BSP3/4"
GS 120 and GS 160 BSP1"
GS 200 and GS 240 BSP11/4"
2 Gas shut-off valve (building side)
3 Sediment trap (Installation - building side -
essential in the case of the use of steel
gas pipes)
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