Section 6, Wiring the Electrical System
International Thermal Research
6-3
Primary DC power should originate from a dedicated connection on
the house battery bank. A 20 amp fuse must be included close to
and inline from the battery to the positive (red) connection on the
Hurricane
®
Chinook Heating System. The primary power wire
gauge must be sized to permit no more than a 3% voltage drop
from the battery to the Hurricane
®
Chinook Heating System.
•
The 12 VDC connections to the Hurricane
®
Chinook must be
connected directly to the battery (through a fuse). There should
be no battery disconnect switch between the battery and the
Hurricane
®
Chinook. This is to prevent the burner from being
shut down without first going through its appropriate purge
period. Without a proper purge period to cool the combustion
chamber, the internal components of the Hurricane
®
Chinook
will become damaged. Note that the power to the Zone Control
Board (see section 6.5) can go through a battery disconnect
switch.
•
A properly-shielded power system is required for safe, trouble-
free operation.
6.3 Hurricane
®
Chinook 120 VAC
•
The Hurricane
®
Chinook Heating System is equipped with two
1500 watt, 120 VAC (60 Hz) immersion elements. The
connections for the electrical supply are on the top left side of
the Hurricane
®
Chinook Heating System, under a cover, labeled
AC power.
•
The power wires for the AC immersion elements are 14 gauge
stranded copper leads that use standard AC color code (black-
hot, white–neutral, green-ground). These are to be connected
using standard 120 VAC electrical connectors and terminals.
•
There are two sets of AC power wires, one set with black heat
shrink (primary) and one set without heat shrink (secondary).
Each individual set must be connected to a separate AC circuit
breaker. The primary set of wires is connected to the left AC
element, and the secondary set of wires is connected to the
right AC element, located inside the Hurricane
®
Chinook Heating
System. If only one AC circuit breaker is available, you must
connect to the primary wire set only. Once the connections are
completed, the wires are to be inserted back into their
compartment and the cover secured.
•
The ground wire (green) is shared between the two connections.
!
WARNING
