Wire Gauge Info - Aqua-Hot 600 Series Service Manual

Wire Gauge Info

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Wire Gauge Information:
Because all Aqua-Hot heating systems are designed to operate only when there is an adequate supply of DC
(Direct Current) voltage, it is imperative that the proper wire gauge be determined and used for the DC power
supply and ground wires. This section addresses how to determine the DC amperage draw of the heating
system, including heat exchangers, and how to determine the proper wire gauge based upon those fi ndings
for a specifi c application.
On the Front Side of the Aqua-Hot:
1. Review the chart above for the amperage draw of the Aqua-Hot heater
2. Determine the number of heat exchangers installed with the heating system.
NOTE: Each Aqua-Hot Cozy heat exchanger draws 0.23 amps of direct current.
Each Aqua-Hot Whisper heat exchanger draws 0.38 amps of direct current.
3. Consult the heat exchanger's manufacturer for amp-draw information
4. Determine the total amperage draw for all heat exchangers installed.
• For example, if six Aqua-Hot Cozy heat exchangers have been installed, multiply the
5. Add the total heat exchanger amperage draw to the amperage of the installed Aqua-Hot.
• For example, an Aqua-Hot 675D with six Cozy heat exchangers has a total amperage draw
p. 80
Aqua-Hot Model
600D
675D
* Excludes heat exchangers
NOTE: Each heating zone "FAN" circuit can supply up to 2.0
amps of direct current.
amperage draw of each heat exchanger (0.23 amps) by the number of heat exchangers
(6). The total amperage draw in this scenario would be 1.38 amps.
of 23.38 amps.
©Aqua-Hot® 675D Service Manual
Base DC Amp Draw*
22 Amps
22 Amps