Fulton Electric (FB-W) Hot Water Boiler - Manual (Page 11)

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SECTION 2
FBW-IOM-2014-0311
INSTALLATION
2-5
 Drain Valve
 PID Type Temperature Controller
 Boilers 100kW and larger: staged element sequencer for
modulation of output
Temperature Control
Temperature control is achieved via an operating and high
limit temperature controller. The high limit temperature
controller is a temperature switch that is set to shut the boiler
off if the water temperature exceeds the set point. For ASME
Section IV hot water boiler, the high limit must be below 250
F.
The operating controller is a temperature sensor and PID
Type controller that converts a temperature measurement
into a 4-20 ma signal. The signal, which is proportional to the
temperature of the water in the boiler, is used to energize/de-
energize the contactors or step controller. The step controller
(power modulation) will energize/de-energize each element
based on a preset sequence to maintain the outlet water at a
preset temperature.
 Step Controllers
At start up stage number one is fi rst “on” with additional
stages added as demanded. When set point is reached, the
fi rst “on” stage is removed followed by the next stage “on”.
Where control is a fraction of the total load, a sequence of on-
steps will advance through the total number of stages, trailed
by a sequence of “off ” steps. In this way all contactors and
heaters tend to operate equally.
A back up operating temperature switch is supplied on each
boiler and will act to energize/de-energize all elements
simultaneous based on boiler water outlet temperature.
Water Supply
 Water Quality
The quality of the water used in the boiler will aff ect the
life of the elements and pressure vessel and it is strongly
recommended that a competent water treatment concern
be consulted prior to the operation of the boiler. Boiler
internals damaged due to adverse water conditions cannot
be replaced under warranty.
 Water Specifi cation
All water supplies contain some amount of solids, dissolved
gases and dissolved minerals. These materials may promote
corrosion, deposition and/or fouling of equipment. To prevent
TABLE 1B - SPECIFICATIONS
Model FB-W 012 015 018 024 030 036 050 070 105 140 175 210 280 350 420 490 560 630 700
Number of Elements 1 1 1 2 2 2 2 2 3 4 5 6 4 5 6 7 8 9 10
Output
1000 BTU/HR 41 51 62 82 103 124 172 241 362 483 603 724 966 1207 1449 1690 1932 2173 2415
1000 KCAL/HR 10 13 16 21 26 31 43 61 91 122 152 182 243 304 365 426 487 548 609
Approx. Shipping Weight
LB 420 420 420 450 450 450 580 580 950 1088 1225 1225 1380 1615 1850 2039 2150 2320 2660
KG 191 191 191 204 204 204 263 263 431 494 556 556 626 733 839 925 975 1052 1207
Water Capacity
GALLONS 13 13 13 13 13 13 21 21 51 51 68 68 132 133 133 169 169 234 234
LITERS 49 49 49 49 49 49 79 79 193 193 257 257 500 503 503 640 640 886 886
Heater Connection Sizes
Hot Water Outlet
IN 1.25 1.25 1.25 1.25 1.25 1.25 2 2 2 2 2 2 2 2 2.5 3 3 3 3
MM 32 32 32 32 32 32 51 51 51 51 51 51 51 51 64 76 76 76 76
Hot Water Inlet
IN 1.25 1.25 1.25 1.25 1.25 1.25 2 2 2 2 2 2 2 2 2.5 3 3 3 3
MM 32 32 32 32 32 32 51 51 51 51 51 51 51 51 64 76 76 76 76
Drain Outlet
IN 1 1 1 1 1 1 1 1 1 1 1.25 1.25 1.25 1.25 1.5 1.5 1.5 1.5 1.5
MM 25 25 25 25 25 25 25 25 25 25 32 32 32 32 38 38 38 38 38
Safety Valve Inlet (160 PSIG)
IN 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
MM 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19
Safety Valve Outlet (160 PSIG)
IN 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
MM 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25
Electrical Power Requirements (Amps)
208V 3 Phase
34 42 50 67 84 100 139 195 292 389 486 583 778 Consult Factory
230V 3 Phase 31 38 46 61 76 91 126 176 264 352 440 528 703 879 1055 1231 Consult Factory
460V 3 Phase 16 19 23 31 38 46 63 88 132 176 220 264 352 440 528 616 703 791 879
575V 3 Phase 13 16 19 25 31 37 51 71 106 141 176 211 282 352 422 493 563 633 703
Specifi cations are approximate. Fulton reserves the right to change dimensions and/or specifi cations without notice. Voltage applied higher than the above ratings will
result in higher amp draws. 160 PSIG design boilers operate up to 130 psi, 230 F.