Connect Steam Piping CONTINUED

Optional reservoir piping:

Modern steam boilers are designed to steam for less time than older, larger boilers. When replacing an older steam boiler, the system condensate return time may be longer than the steaming time. This can cause the following problems:

Boilers fitted with an automatic water feed could overfill.

Units fitted with only a low water cutoff would shut down and cycle while waiting for condensate to return.

To size and install reservoir piping, see FIGURE 11 and Bulletin AE-8403 (available through your Weil-McLain distributor or sales office):

1.Pipe boiler as shown on pages 14 through 16.

2.Use 8" diameter reservoir pipe.

3.Locate centerline of reservoir pipe 1" below 26 7/8 " boiler waterline.

CONDENSATE RECEIVER CAPACITY TABLE

 

 

 

MINIMUM CONDENSATE RECEIVER CAPACITY – GAL.

 

 

 

 

 

 

 

 

RECOMMENDED

 

I=B=R GROSS

 

 

 

 

 

CONDENSATE

 

OUTPUT

GALLONS

15 MIN.*

30 MIN.*

45 MIN.*

60 MIN.*

FEED PUMPING RATE

BOILER

LBS STEAM

CONDENSATE

BOILER

BOILER

BOILER

BOILER

GPM

MODEL

PER HOUR

PER HOUR

OPERATION

OPERATION

OPERATION

OPERATION

AT 15 PSI

 

 

 

 

 

 

 

 

SGO-3

114

14

4

8

12

16

0.5

SGO-4

150

18

5

11

16

22

0.6

SGO-5

180

22

6

13

19

26

0.7

SGO-6

216

26

8

16

23

31

0.9

SGO-7

246

30

9

18

27

35

1.0

SGO-8

274

33

10

20

30

39

1.1

SGO-9

303

36

11

22

33

44

1.2

 

 

 

 

 

 

 

 

* Maximum time to when condensate returns to boiler.

Page 17
Image 17
Weil-McLain 550-141-829/1201 manual Optional reservoir piping, Condensate Receiver Capacity Table