Wiring the Electrical System
6.1 Before You Begin
The WaterHeater™ by ITR and its electrical Control Board are pre-
wired and have been thoroughly tested together as a unit.
To review the wiring system for The WaterHeater™ by ITR, refer to
the schematic in this Section 6, Figure 6-1: System Wiring.
All electrical connections and wiring must comply with normally-
accepted 12 VDC and 120 VAC wiring practices, local regulations,
and ABYC/RVIA standards. Only a qualified electrical installer
should complete the wiring. All field wiring is to be in accordance
with CSA Standard C22.1, Canadian Electrical Code Part l or the
National Electric Code.
Section
6
!
WARNING
6.2 12
VDC
The following apply to the 12 VDC connections to the The
WaterHeater™ by ITR:
•
There is one paired set of 12 VDC electrical connections on
the top right of The WaterHeater™ by ITR. They consist of
the primary DC positive (red) and negative (black) connection
and are 14 gauge stranded copper wires.
Primary DC power should originate from a dedicated connection on
the house battery bank. A 20 amp fuse or breaker must be included
inline from the battery to the positive (red) connection on The
WaterHeater™ by ITR. The primary power wire gauge must be
sized to permit no more than a 3% voltage drop from the battery to
The WaterHeater™ by ITR.
!
WARNING
•
A properly-shielded power system is required for safe,
trouble-free operation.
International Thermal Research
6-1
