Installation Guide

DIAGRAMS
30 • Electric Tankless Water Heater
Relay 1
Relay 2
TH-IN
TH-AUX
TH-OUT
Moisture
Sense
Level
Detect
Control Board
RED
BLK
RED BLK
GRN
1 Chamber, 1 Dual Element, 240/208 VAC
3-Pin Conn.
GND
L2
L1
GRN
Power
Supply
Ground
RED
BLK GRN
GRN
RED BLK
RED BLK
Relay 1
Relay 2
Element
RED
BLK
RED
BLK
Element
RED
BLK
GRN
BLK
RED
GRN
RED
BLK
USE COPPER CONDUCTORS ONLY WHEN
CONNECTING TO ELECTRICAL SERVICE.
BLK
RED
GRN
Relay 1
Relay 2
GRND
L2
TH-IN
TH-AUX
TH-OUT
Moisture
Sense
Level
Detect
Element
L1
G
RN
Control
Board
Ground
RED BLK
RED
BLK
RED BLK
GRN
RED BLK GRN
G
RN
GRN
1 Chamber, 1 Element, 277 VAC
3-Pin Conn.
BLK
RED
GRN
Transformer
Board
USE COPPER CONDUCTORS ONLY WHEN
CONNECTING TO ELECTRICAL SERVICE.
Power
Supply
RED BLK
GRN
GRN
BLK
BLK RED
RED RED