Hydronic Heating (Optional)
Hydronic heat package may be selected in lieu of electric
heat. Heating operation is same as that of units with
electric heat.
Aquastat Connection (Optional)
All replacement PTAC/PTHP's with hydronic heat are
supplied with standard line volt Aquastat connection. Field
installed Aquastat delays fan operation until hydronic coil
reaches temperature of 100°F (38°C).
Motorized Fresh Air Damper (Optional)
Motorized fresh air damper allows fresh air into the space
to be conditioned. When the Fresh Air switch is in "YES"
position, damper door is open and allows fresh air into
the space. This is only available when the indoor fan is
on. When damper door switch is in the "NO" position, the
damper door is closed and does not allow air in the space.
Optional Wall-Mounted Thermostats
PTAC/PTHP compatible thermostats.
• Manufacture offers single stage, cool/heat, thermostat
that can be used in all RetroAire cooling, heating or
heat pump applications.
• Thermostat has adjustable setpoint range of between
45°F(7°C) and 90°F(32°C).
• For heat pumps manufacture offers a 2 stage heat/cool
thermostat which allows for emergency heat.
Selecting A Thermostat
When selecting a thermostat for the PTAC/PTHP choose a
single stage heat/cool, 24V thermostat.
Straight cooling with electric heat or hydronic heat (R10C
— PTAC's) select a thermostat compatible with a cooling/
electric heat system. Thermostat should have “
R
”, “
Y
”,
“
W
”, "C" and “
G
” terminals.
Heat Pump With Electric Heat (R__
H - PTHPS
)
Select a thermostat compatible with cooling/single-stage
heat/heat pump system.
Thermostat should have "R", "Y", "O" and "G" terminals.
RetroAire units are single stage heating only.
Electric heat and heat pump will not operate
simultaneously.
FEATURES
9
Made in USA
P/N 240010545, Rev. B [10/24/2014
]
