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Table 5
NUMBER
EVAPOR.
WATER 1"
OF
RATE
BELOW WATER
SECTIONS
GPM
LEVEL GAL.
3
.61
1.4
4
.85
1.9
5
1.19
2.4
6
1.52
2.9
7
1.86
3.3
8
2.19
3.8
9
2.53
4.3
10
2.86
4.8
11
3.20
5.2
12
3.53
5.7
Feed water makeup requirements.
NOTE:These recommendations are considered normal for
compact buildings on the basis of 80% receiver use.
Where buildings are spread out, additional receiver
capacity may be necessary because of the extended time
required for condensation to return to the receiver.
9.
WATER PIPING
See Figure 5 for accepTable water piping diagram. Table 6
gives pumping rate and supply & return sizing for standard
installations.
Table 6
BOILER SIZE
GPM
RETURN CONN.
3
30
4
41
5
58
6
74
7
90
8
106
9
123
10
139
11
155
12
171
Based on 20°F system temperature drop.
NOTE: Boiler supplied with 4" water supply tapping and
3" return tapping.
SERIES 19HE BOILER
INSTALLATION INSTRUCTIONS
CONDENSATE
MIN. FEED
RECEIVER
WATER PUMP
CAP.-GAL.
RATE-GPM
1.22
12
1.70
16
2.37
22
3.04
29
3.71
35
4.38
41
5.05
47
5.72
54
6.39
60
7.06
66
SUPPLY CONN.
2"
2"
2"
2"
2-1/2"
2-1/2"
3"
3"
3"
3"
3"
3"
3"
3"
3"
3"
3"
4"
3"
4"
Figure 5
SYSTEM SUPPLY
CONNECTIONS
GATE VALVE
RELIEF VALVE
SUPPORT RELIEF VALVE
DISCHARGE PIPE
TERMINATE DISCHARGE
PIPE SO AS TO AVOID
DISCHARGE ON PERSONS
SYSTEM RETURN
CONNECTION
GATE VALVE
BLOWDOWN VALVE
TO DRAIN
TYPICAL WATER PIPING DIAGRAM
10. TANKLESS HEATERS
Heater openings are provided for below-the-water-line tankless
heater coils in all special intermediate sections when ordered.
See Table 2 for the correct placement of these heater sections.
Install the low limit temperature control in the 3/4" tap located
in the center of the coil.
If the heater sections are installed in an order other than in
Table 2 the jacket panels will not match.
11. SMOKE HOOD
Install smoke hood with the correct size smoke pipe
connecting collar using the 5/16" x 1-1/2" studs and hex nuts
furnished in screw seats in the back section. Apply self-
adhesive insulating tape (Items 21 and 22 in Parts detail
drawing on Page 2) to smoke hood fl ange and damper angle
Item 23. Fasten the slide damper in the open position for
starting the burner adjustment process.
See Figure 6 for recommended "L" coil piping and Figure 7 for
SM9-18 single and/or dual piping arrangements.
CHECK VALVE
CIRCULATOR
EXPANSION
TANK
AIR REMOVAL
PIPING
GATE
VALVE
C.W. MAKEUP
CONNECTION
PRESSURE
REGULATING
VALVE
7
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