© 20101 Aqua-Hot
®
375-LP Installation Manual
SECTION 4: THERMOSTATS
Figure 32
— Page 27 —
Zone 1 Thermostat Connection Terminal
Zone 2 Thermostat Connection Terminal
Room Thermostat Locations:
Select a location that will ensure even heat throughout
each heating zone.
Locate each thermostat at approximately chest level, if
applicable.
NOTE: The selected location should prevent the
thermo stat 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 un-cooled areas such as an
outside wall behind the thermostat
Room Thermostat Mounting:
Once the room thermostat has been wired, perma-
nently mount the thermostat in place.
Be sure to then turn OFF both interior room ther-
mostats.
Room Thermostat Wiring:
1. Run one 18-gauge wire from each room thermo-
stat mounting location to the Aqua-Hot terminal
block.
2. Attach the zone 1 thermostat to the T1 location
on the terminal block and attach the zone 2 ther-
mostat to the T2 location. Reference Figure 32.
3. Attach the T1 wire to one side of the zone 1
thermostat and attach the T2 wire to one side of
the zone 2 thermostat.
4. Connect a wire from the other side of both ther-
mostats to the chassis ground.
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 troubleshooting.
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