Hubbell Electric Heater Company J manual NCB L1 L2 L3

12 (NCB) L1 L2 L3 12 L1 L2 L3

Control

Module &

Display

J7

J5 J2

J3

Control, Low Water,

& Hi-Limit Probe

Control

Module &

Display

J7

J5 J2

J3

Control, Low Water,

& Hi-Limit Probe

Leak

Leak Detection Probe

14 L1 L2 L3

J7

J5

J3 J2

Control, Low Water,

& Hi-Limit Probe

Leak Detection Probe

15

Detection

Probe

L1 L2 L3

Control

Module &

Display

J7

J5

J3 J2

Control, Low Water,

& Hi-Limit Probe

Leak Detection Probe

Note: Wiring diagrams 3, 5, 6, 7 (NT), 7 (WT), and 11 are obsolete.

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