1701ULSA(EC)--EN, p. 9/30
Figure1b:ULSA/ULSAEC100(alldimensionsinmm,tolerance3mm)
1. Combustion air inlet ( 100mm) 4. Electrical connections
2. Flue connection ( 100mm) 5. Service panel
3. External gas connection (3/4”G) 6. Condensate drain