RENEWAL PARTS IDENTIFICATION
Note:
When ordering parts for Model Numbers suffixed by “XX” or any other letter or letters not specifi-
cally identified on this instruction sheet, order Renewal Parts on special order basis, giving name of
part, part number, model number and description.
Replacement
Element
Model
Volts Phase
kW
Assembly
NWH-185015
240
3 50
155-013185-046
NWH-185015
480
3 50
155-013185-047
NWH-187515
240
3 75
155-013185-049
NWH-187515
480
3 75
155-013185-050
NWH-1810015
240
3 100
155-013185-052
NWH-1810015
480
3 100
155-013185-053
NWH-1812515
240
3 125
155-013185-058
NWH-1812515
480
3 125
155-013185-059
NWH-1815015
240
3 150
155-013185-061
NWH-1815015
480
3 150
155-013185-062
NWH-1817515
240
3 175
155-013185-064
NWH-1817515
480
3 175
155-013185-065
NWH-1820015
240
3 200
155-013185-067
NWH-1820015
480
3 200
155-013185-068
Parts Common To All Heaters
Flexitallic Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . .132-019779-007
Standard Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . .132-017222-007
MAINTENANCE
1.
WARNING:
Hazard of Shock. Disconnect
all power before servicing heater.
2.
Remove heating element assembly periodically to check
heater sheath for scaling, corrosion or excessive oxidation.
Correct operating conditions to minimize sheath deterioration.
3.
Periodically check temperature control and limit control oper-
ation to insure accurate and safe process operation.
4.
Check all electrical connections periodically and retighten
connections which may have loosened in service. Replace
wire and wire terminals which show signs of oxidation which
would interfere with establishment of reliable electrical con-
nections.