— Page 19 —
© 2008 Aqua-Hot
®
450-DE/DM Hydronic Heating System Installation Manual
Section 3: Thermostats
Room Thermostat Locations:
Select a location that will ensure even-heat throughout
each heating zone. The selected location should pre-
vent the thermostat from being affected by:
• drafts or dead spots behind doors and in corners
• hot or cold air from ducts
• radiant heat from the sun or appliances
• heat from concealed pipes and chimneys
• unheated or uncooled areas such as an outside
wall behind the thermostat
Locate each thermostat at approximately chest level, if
applicable.
Room Thermostat Mounting:
Once the room thermostat has been wired, permanent-
ly mount the thermostat in place.
Be sure to then turn
OFF
all interior room thermo-
stats.
Room Thermostat Wiring:
1.
Run two 18 gauge wires from each room thermostat
mounting location to the Aqua-Hot’s electronic con-
troller. Reference Appendix A.
NOTE:
It is recommended that the wire numbers in Appendix
A be used when installing the Aqua-Hot in order to
assist with differentiating between the separate heating
zones and to aid service personnel with troubleshoot-
ing.
2.
Insert all room thermostat wires into the correspond-
ing zone number location on the electronic controller.
Reference Appendix A and Figure 28.
3.
Connect all wires to the appropriate leads of each room
thermostat.
Figure 28
Reset Button
(Secondary
Power Source)
12 Volt-DC Screw
Terminal
(Primary
Power Source)
12 Volt-DC Screw
Terminal
Ground Wire
Screw Terminal
Header
Terminal Strip/Plug
Pin Jumper
J4
J1
J3
J2
1
1
1
1
Electronic Controller Board
To Motorhome
From Hydronic Heating
System Wiring Harness
Wire
Loom
Wire
Loom
Wire
Loom
Wire
Loom
Summary of Contents for 450-DE Series
Page 1: ...Installation Manual 2008 Aqua Hot Heating Systems Inc...
Page 43: ...Appendix B Appendix B Wire Gauge Information...
Page 45: ...Appendix C Appendix C Electronic Controller Features...
Page 48: ...Appendix D Appendix D Antifreeze Types...
Page 50: ...Appendix E Appendix E Antifreeze Mixture Water Quality Recommendations...
Page 52: ...Appendix F Appendix F Antifreeze Terms and Mixture Ratio...
