Atmos Energy HE26 - Manual (Page 13)

4. INSTALLATION
4.1 Overall dimensions
A= CH flow 22 mm diameter h= 670mm InterSystem HE 26
B= CH return 22 mm diameter
C= Gas 15 mm diameter H= 810mm InterSystem HE 26
Z= Flue gas outlet 80 mm diameter
F= Condensate 32 mm dia (after trap 25 mm dia flexib ) le Y= Air supply inlet 80 mm diameter
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