Installation Guide

DIAGRAMS
Electric Tankless Water Heater • 31
TH-2
TH-1
Moisture
Sense
Level
Detect
Power
Supply
2 Chamber, 2 Element, 240/208 VAC
TH-IN
Relay 2
Relay 3
Relay 1
Relay 4
Display
Ground
RED
BLK
GRN
Element 1 Element 2
Element 2
Element 1
L2
L1
BLK BLK
BLK
BLK
RED
RED
RED RED
RED BLK
BLK
BLK
RED
RED
BLK RED
BLK
RED
RED
RED
BLK
BLK
BLK RED
USE COPPER CONDUCTORS ONLY WHEN
CONNECTING TO ELECTRICAL SERVICE.
NOTICE: 16 kW and 18 kW two-chamber models DO NOT use this confi gura on.
14kW, 208V models DO NOT use this confi gura on.
For two circuit, two-chamber models, see page 32. Failure to observe this
no ce can result in equipment malfunc on.