Installation Guide

GENERAL INFO
6 • Electric Tankless Water Heater
Component Identification: Two-Chamber Models (R2V, C2V)
Inlet Thermistor *
(connects to TH-IN)
OUTLET INLET
TH-IN
Inlet thermistor
TH-1
Intermediate thermistor
TH-2
Outlet thermistor
Thermistor* Connections
* Often referred
to as a
temperature
sensor.
L1
L2
TH-1
TH-IN
Intermediate
Thermistor *
(connects to
TH-1)
Outlet Thermistor *
(connects to TH-2)
HEATING ELEMENTS
Access Plate
(for draining)
TH-2
NOTICE:
The user interface is
described in Figure 7,
page 16.
Component Identification: Four-Chamber Models (R4L, C4L, R4M, C4M)
Inlet Thermistor *
(connects to TH-IN)
INLET
L1
L2
TH-1
TH-3
TH-4
Intermediate
Thermistor *
(connects to
TH-1)
TH-2
TH-IN
L1
L2
TH-IN
Inlet thermistor.
TH-1
Intermediate thermistor
TH-4
Outlet thermistor
Thermistor* Connections
* Often referred to as a
temperature sensor.
TH-2
Intermediate thermistor
TH-3
Intermediate thermistor
OUTLET
Outlet Thermistor *
May be located on
outlet elbow.
(connects to TH-4)
Intermediate Thermistor *
(connects to TH-3)
Intermediate
Thermistor *
(connects to
TH-2)
Access Plates
(for draining)
Element Element Element Element
NOTICE:
The user interface is
described in Figure 7,
page 16.