Hubbell CR Electric Heater User Manual


 
9
INDIVIDUALLY FUSED ELEMENTS
To prevent the possibility of damage to control circuits and other elements in case of electrical
overloads, fuses may be supplied for each element. Two types of fuses may be used; a type NON for
voltages less than 250-volt or type JJS for voltage less than 600-volt.
Type JJS Type NON
LOW WATER CUT-OFF
Used as a safety device, the electronic low water cut-off is used to detect a low water situation and
disengage the operating coils in the magnetic contactor(s). Once the condition is remedied, the low
water cut-off switch is automatically reset.
Conductive Type Low Water Cut-Off Relay
OPTIONS
The following optional features may be included in your water heater. Reference included drawing
specific to your heater for further details.
Stainless Steel Jacket
An optional stainless steel outer jacket may replace the standard galvaneel covering. This optional
jacket may be painted.