Benchmark 27i System Compact Installation, Commissioning And Servicing Instructions page 18

PRE-INSTALLATION
2
1
2
Fig. 15 Plumbing manifold
# Function
1 Condensate
2 CH Flow
3 Gas
4 Pressure Relief Valve
5 CH Return
Table 8 Key to figures 14 & 15
Heating System 22mm compression fittings
Gas 22mm compression fittings
Condensate 22mm rubber push fit connector
PRV 15mm (fittings not supplied)
Use the fittings supplied in the Hardware literature pack.
18
5
5
3 4
From left Diameter of
case edge pipe
33mm 22mm
65mm 22mm
195mm 22mm
291mm 15mm
325mm 22mm
Greenstar i System Compact ErP - 6 720 813 280 (2015/07)