Utica Boilers PEG E Series インストール手順

Consider near boiler piping as part of the boiler for proper 

water level control and to produce dry steam. 
Correct near boiler piping is crucial to proper operation of 

boiler and heating system.
Follow these recommendations carefully.

Place boiler in selected location as near chimney as 

possible. 

Install safety valve. Figure 5 and Warning on Page 8.
• Install union, if used, close to safety valve outlet.
• Install elbows close to safety valve outlet and 

downstream of union (if used).

Boiler is equipped with two 2" supply connections and 

two 2" return connections, one each on both left and 

right sides of boiler. Plug unused connections with 

furnished 2" plug and 2 x ¾ " bushing for drain valve.

When using both supply tappings to pipe system as 

shown in Figure 6b , Page 10.

• Fit headers with header offsets, swing joints, or equip 

with expansion joints, so thermal expansion and 

contraction of header does not damage boiler. Do not 

weld headers.

• Place system takeoffs from header between equalizer 

and riser to header nearest equalizer. System takeoffs 

must never be between two risers. If steam main goes 

in two directions, place two takeoffs from header, one 

for each main.

Recommended near boiler piping for gravity return 

systems is shown in Figure 8 page 11. For gravity return 

systems, bottom of lowest steam carrying pipe, dry 

return or end of steam main, must be at least 28” above 

normal water level line on left side of boiler. 

Equip all boilers in gravity return systems with Hartford 

Loop as shown in Figure 6a and 6b page 10.

Piping vertical risers from boiler to header, risers must 

be minimum of 24" high above water line.

Steam riser(s) and header shall be 2" pipe. 

Equalizer line shall be minimum 1-1/2" pipe size.

Near boiler piping shall include 2" tee with female 

adapter and cap located on supply line as shown for 

skimming (i.e. surface blow-down).

For pumped return systems, follow condensate pump 

or boiler feed pump manufacturer’s instructions for 

proper installation and hookup. See Table 4 and Figure 

7 page 11.

Connecting cold water supply to water inlet valve, 

verify clean water supply is available. When water 

supply is from well or pump, install sand strainer at 

pump.

3

63.4 LBS/HR

4

94.7 LBS/HR

5

126.8 LBS/HR

6

158.1 LBS/HR

7

190.2 LBS/HR

8

221.5 LBS/HR

9

252.8 LBS/HR