Connect Wiring (Note 1) - Weil-McLain ULTRA OIL Manual

®
WATER BOILER
Connect water piping
(continued)
Piping boiler in refrigeration systems
(Figure 12)
dium from entering boiler. Consult I=B=R Installation and
Piping Guides.
units where they can be exposed to refrigerated air, use flow
control valves or other automatic means to prevent gravity
circulation during cooling cycle.
Piping boiler in a system with chiller
Connect wiring
General wiring requirements
injury or death if power source, including service
switch on boiler, is not disconnected before install-
ing or servicing.
Installations must follow these codes:
any additional national, state or local codes.
codes.
18
— Boiler Manual
-
. Can cause severe personal
Connect wiring
Wire requirements
105 °C wire or equivalent must be used.
Electrical requirements
amp service.
Electrical grounding
Wiring entrances (see Figure 13)
Terminal strip access
of the boiler) and remove the jacket top panel.
the boiler terminal strip.
Terminal strip access
UO018
Conduits,
typical
Control Pod cover
Remove cover for
unrestricted access to
wiring compartment.
Electrical
knockouts
Terminal strip
Part number 550-141-986/0112