Weil-McLain EG manual Piping connections continued, Steam boilers, Condensate receiver capacity

2 EG, PEG, EGH GAS-FIRED BOILERS — SERIES 4 — BOILER MANUAL

Piping connections (continued)

Steam boilers

1. Refer to table and Figures 14 or 15. Pipe exactly as shown. Satisfactory operation of a steam heating system depends on adequate condensate return to boiler to maintain a steady water level. Avoid adding raw make-up water. Where condensate return is not adequate, install low water cut-off and pump control, condensate receiver,and condensate boiler feed pump. Refer to Figure 16 for sizing.

2. Install steam relief valve vertically in“E” tapping.

Relief valve discharge piping must be piped
near floor close to floor drain to eliminate
potential or severe burns. Do not pipe to
any area where freezing could occur. Do
not plug, valve or place any obstruction in
discharge line.	Figure 16 Condensate receiver capacity

3. EGH only - install 3/4" system blow-off (drain) valve in lowest part of return piping close to boiler.

Figure 14 Recommended piping connections

EG steam boilers

Figure 15 Recommended piping connections

EGH steam boilers

NOTE : Steam supply must be on same end as controls. Return may be from either end.

Part Number 550-110-639/0703 11