Required connections
Model
HR 1421
HR 1622
HR 112x
HR 113x
HR 1724
HR 192x
HR 193x
HR 195x
X Connection required
– Connection not provided
Electrical
connection
X
X
X
X
X
Notes on installation
Gas connection
–
–
X
X
X
Plumbed-water
connection
–
X
–
–
X
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