CleaverBrooks WB, Руководство по эксплуатации и техническому обслуживанию владельца

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General Description
1-4 750-136
Model WB Electric Boiler Manual
The following optional equipment may be added and supplemental descriptive information (suppliers’ literature)
may be included with your manual for these options:
1.
Manual reset low water cutoff
2.
Auxiliary low water cutoff (manual or auto reset)
3.
High or low pressure cutoff
4.
Pilot lights for individual steps
5.
Toggle switches to enable/disable individual steps
6.
Solid state progressive sequencing step control
7.
Outdoor reset controls
8.
Proportional outdoor load limiter
9.
Demand limiting controls or interface
10.
Door interlock
11.
Boiler disconnect switch or circuit breaker (with or without shunt trip)
12.
Ground fault detection
13.
Metering (ammeter, voltmeter or KWH meter)
14.
Alarm circuit (with or without horn/silencer push button)
15.
Flow switch (with or without time delay)
16.
Preheat switch
17.
Local/remote modulation switch
18.
SCR controller
19.
Feedwater valve
20.
Other misc. options
Your Dimension Drawings (DD) and Wiring Diagrams (WD) will show the optional equipment on your boiler.
1.4 — Principles of Operation
An electric hot water boiler is a simple device. Water passes through a steel drum (vessel) containing resistance
type heating elements. As the water circulates, it absorbs heat from the heating elements. The heated water is
then circulated through the external system to heat buildings, to provide heat for manufacturing processes, or for
use wherever it is required.
10. Pilot Switch and Pilot Lights Pilot lights are standardly provided to indicate “power on,” “high tempera-
ture,” and “low water.”
11. Pressure/Temperature Combina-
tion Gauge NOTE: Model WB 121 is supplied with individual pressure and tempera-
ture gauges. Larger models include a separate pressure gauge and digital
temperature read-out.
12. Pressure Relief Valve This valve is sized according to the boiler’s electrical rating (3500 Btu/
KW) per the ASME Code and National Board.
Component Description