Airxcel Aqua-Hot 600 Series, Installation Manual

Page: 28 / 63

Domestic Water System
©Aqua-Hot® 600D Installation Manual p. 27
Fresh Water Tank Thermostat
Select a location that will ensure even heat distribution
throughout the fresh water storage bay compartment in order to
prevent the domestic water and plumbing system from freezing.
Typically, only the bulb of the thermostat needs to be physically
mounted in the area requiring heat (usually in close proximity to
the domestic water pump). The capillary tube and bulb should
be close to the bay wall with the bulb located close to the bay
fl oor in the area requiring heat. Reference Figures 50 & 51.
• Do not mount the thermostat bulb in a drafty area or
along the ceiling of the bay.
• The selected mounting location should allow for easy
access and should be as low in the bay area as possible.
• Avoid mounting the fresh water tank thermostat’s bulb
too close to the bay heat exchanger.
• Aqua-Hot recommends using Heating Zone 3 for the Bay
thermostat, as Zone Circulation Pump 2 is for Zones 2,
3, & 4. However, you can wire to which ever zone of your
preference.
• The recommended temperature setting for the bay
thermostat is at the 41°F mark to prevent freezing.
Fresh Water Tank Thermostat Mounting
1. Select a location for the thermostat bulb in the fresh
water storage tank bay compartment.
2. Once the thermostat has been completely wired,
permanently mount the thermostat in place.
Fresh Water Tank Thermostat Wiring
1. Run two 18-gauge wires from the thermostat’s mounting
location to the Aqua-Hot’s Reporter J1 & J9 Pin.
2. Insert the positive wire (#86) to the J9-6 Pin on the
Reporter, and insert the ground wire (#87) to J1-7 Pin.
3. Connect both wires to the appropriate leads of the
thermostat.
Room Thermostat Locations
Select a location that will ensure even heat throughout each
heating zone. Place each room thermostat at approximately
chest level, if applicable.
The selected location should prevent the thermostat from
being affected by the following.
• Drafts or dead spots behind doors and in corners.
• Hot or cold air ducts.
• Radiant heat from sun or appliances.
• Heat from concealed pipes and chimneys.
• Unheated or uncooled areas such as an outside wall
behind the thermostat.
Room Thermostat Mounting
1. Select a location for the thermostat in the coach.
2. Once the thermostat has been completely wired,
permanently mount the thermostat in place. Be sure
the thermostats are turned OFF.
Room Thermostat Wiring
1. Run two 18-gauge wires from each room thermostat
mounting location to the Aqua-Hot’s Reporter J1 & J9
Pin.
2. Insert the positive wire to the J9 Pin on the Reporter,
and insert the ground wire to J1 Pin.
3. Connect both wires to the appropriate leads of the
thermostat. Reference the wiring schematic on Page 51.
Figure 51
Mounting Tab
Bulb
Thermostats
Capillary Tube
Thermostat Rear View
Terminals
Figure 50
NOTE: The thermostat is not polarity-specifi c and does not
require attention to positive/negative wire attachment.
Bay Thermostat Front View