Airxcel AHE-125-DN1, Руководство по установке

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Providing DC Power House Power Sense
©Aqua-Hot®
125DN Installation Manual REV 220419
©Aqua-Hot®
125DN Installation Manual REV 220419
p. 27 p. 26
House Power Sense
Introduction:
The Aqua-Hot Controller contains within it a fail-safe
functionality known as House Power Sense. This functionality
serves as a live signal to the Aqua-Hot allowing it to continue
operating. If power is lost to the on-board RVC network or other
on-board control systems, the Controller is signaled to shut
down operation until a 12V DC power signal is returned to the
unit.
Wiring for House Power Sense
In order for the Aqua-Hot to function correctly, supply 12V DC
power to either the J8-9 pin OR to the J3-1 pin.
In order to maintain the fail-safe nature of the House Power
Sense, supply 12V DC power to the J8-9 pin OR the J3-1 pin. Do
NOT supply power to both of these pins.
Wiring for Multi-Plex Systems:
When wiring for Multi-Plex Systems, route a power wire from
a power connection on the RVC system to the Aqua-Hot’s J3-1
pin (that is, plug J3, pin 1.) The House Power Sense will not
function correctly if 12V DC power is not supplied from a device
on the RVC network.
Routing the wire from the RVC network (or from an accessory
on the RVC network) ensures that if the RVC network goes off-
line (but the vehicle remains otherwise powered), the Aqua-Hot
will not continue to operate unabated.
There are two ways to wire the House Power Sense for use
with a Multi-Plex network; typical wiring case and a special
wiring case.
Typical
The typical use case in wiring the House Power
Sense requires a constant 12V DC signal on
plug J3-1 for the House Power Sense. Plug J3
is the 4-position RVC plug. This is the easiest
way to implement House Power Sense on
vehicles with on-board Multi-Plex systems.
Special
If for some reason pin J3-1 cannot be supplied
with power, supply 12V DC power to the J8-9
pin.
1 2 3
4 5 6
7 8 9
10 11 12
13 14 15
J8 Wire Insertion View Shown
J3 Wire Insertion View Shown
Figure 54
Figure 55
Wedge Housing Pins
Figure 57 Figure 58 Figure 59
• The image above is simply a reference. A professional,
licensed installer needs to determine the necessary
components and configuration according to local codes
and standards.
• The 12-volt supply to the heater must be routed directly
from the battery.
• All power circuits must be protected with fuses or automatic
circuit breakers.
Connecting the 125D to 12V DC Power
DO NOT connect 12V DC power to the Aqua-Hot
if the vehicle requires welding. Electrical welding
will cause serious, irreversible damage to the
Aqua-Hot.
The section will outline the requirements, steps, and
information necessary to connect the Aqua-Hot to the vehicle’s
12V DC power system. Follow all guidelines and pay attention to
all notes contained herein. Failure to adhere to these guidelines
can inhibit unit performance, and may cause damage to the
Aqua-Hot and/or the RV.
• Installation must be performed by a qualified, professional
according to current national regulations. Reference
A119.2/NFPA 501C Standard on Recreational Vehicles
1993 Edition for relevant national regulatory information.
• Select the correct wire gauge for installation referencing
ANSI/RVIA-LV.
• Protect the Aqua-Hot from over-current and shorting by
incorporating a 20A breaker (minimum) to the Aqua-Hot’s
RV-side power connection.
• Acquire the relevant parts for connecting the Aqua-Hot to
12V DC power by referencing the table below.
Deutsche Amphenol
Pins 1060-12-0222 AT60-12-0222
Housing DPT04-2P ATP04-2P
Wedge WP-2P AWP-2P
• After crimping and assembling the power connector,
connect this plug to its receptacle on the Aqua-Hot until it
clicks into place.
Figure 56
Negative/Ground
Positive/Power
In-Line
Fuse
Main Battery
Disconnect
+
-
Vehicle Battery