CleaverBrooks WB, Руководство по эксплуатации и техническому обслуживанию владельца

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Installation Instructions
2-4 750-136
Model WB Electric Boiler Manual
If aluminum supply wires are selected by the customer, Cleaver-Brooks strongly recommends that the installing
electrical contractor splice a short length of copper wire to the aluminum supply conductors and terminate this
copper wire in the main supply lugs on the heater. If copper splices are not used and the customer chooses to
terminate the aluminum supply wires directly in the main supply lugs, an oxide inhibitor paste should be applied
liberally to the conductors.
Power wiring should be selected for high temperature use (minimum wire rating, 75º C, per National electrical
Code) and/or per local electrical codes.
2.5.1 — Electrical Installation Checklist
The following procedures are recommended:
1.
Check the boiler nameplate for the boiler kilowatt rating, voltage, amperage, and whether it is single or three
phase.
2.
Check the electrical supply voltage to verify that it conforms to the boiler requirements, and that sufficient cir-
cuit capacity is available for the boiler.
3.
Refer to the boiler Wiring Diagram (WD), included with the boiler, for the number and rating of supply circuits
required by the boiler.
4.
Refer to your local electrical code for proper wire and conduit sizes for these ratings.
5.
Install wiring from the feeder switch or circuit breaker to the boiler, and connect to the bus assembly as indi-
cated on the boiler Wiring Diagram (WD).
6.
All Cleaver-Brooks Electric Boilers are supplied with factory-mounted magnetic contactors, and all internal cir-
cuits are factory installed and tested.
7.
Check all electrical connections for tightness. Vibration during transit sometimes loosens connections.
Before tightening the main supply lugs, disconnect and lockout main power to avoid the hazard of electrical shock,
which can cause serious personal injury or death.
Main supply lugs should be tightened every 24 hours during the first week of operation. After the first week, the main
supply lugs should be tightened once every 30 days. After the first 30 days of operation, all electrical power connec-
tions should be tightened (with power off).
To avoid the hazard of electrical shock: On boilers requiring more than one supply circuit, be sure that phasing is cor-
rect and circuits are not “mixed” before energizing.
Failure to observe this warning could result in serious personal
injury or death.
! Warning
! Caution
! Warning