Weil-McLain LGB, Руководство пользователя

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Part Number 550-141-186/0703
19
• Installation • Start-Up • Maintenance • Parts
Condensate receiver
and boiler feed
pump
Figure 19
Boiler feed pump and
condensate receiver piping
Table 3
Condensate receiver capacity
(minimum)
Satisfactory operation of any steam heating system depends upon adequate
return of condensate to maintain steady water level. Avoid adding excessive
amount of raw makeup water. Where condensate return is not adequate, a
low water cutoff and pump control, condensate receiver, and condensate
boiler feed pump should be installed. Refer to
Figure 19
for piping and
condensate receiver capacity table for sizing.
Boiler
Model
Number Gross
Output
Steam
Condensate Minimum Condensate Receiver Capacity
(gallons)
Select minimum receiver capacity based on time
(minutes) , required for condensate to return to the
receiver.
Recommended
Feed Pump
Capacity
lbs/hour gallons/hour 15
min
30
min
45
min
60
min
GPM @ 15 PSI
LGB-4 324.0 39 12 23 35 47 1.3
LGB-5 421.2 51 15 30 46 61 1.7
LGB-6 526.5 63 19 38 58 77 2.1
LGB-7 631.8 76 23 46 68 91 2.5
LGB-8 737.1 88 26 52 78 104 2.9
LGB-9 842.4 101 30 60 90 120 3.3
LGB-10 947.7 114 34 68 102 136 3.8
LGB-11 1,053.0 126 38 76 114 152 4.2
LGB-12 1,158.3 139 42 84 126 168 4.6
LGB-13 1,263.6 152 46 92 138 184 5.1
LGB-14 1,368.9 164 49 98 147 196 5.5
LGB-15 1,474.2 177 53 106 159 212 5.9
LGB-16 1,579.5 190 58 116 174 232 6.3
LGB-17 1,684.8 202 61 122 183 244 6.7
LGB-18 1,790.1 215 65 130 195 260 7.1
LGB-19 1,895.4 227 68 136 204 272 7.5
LGB-20 2,000.7 240 72 144 216 288 8.0
LGB-21 2,106.0 253 76 152 228 304 8.4
LGB-22 2,211.3 265 79 158 237 316 8.8
LGB-23 2,316.6 278 83 166 249 332 9.2