AAON RM-030 - Manual (Page 4)

4
HEATING & COOLING SYSTEMS
NORMAL OPERATION
HEATING
Set the thermostat system switch to "HEAT".
Set the thermostat fan switch to "AUTO" or "ON".
Set the thermostat temperature at the desired point.
COOLING
Set the thermostat system switch to "COOL".
Set the thermostat fan switch to "AUTO" or "ON".
Set the thermostat temperature at the desired point.
AIR CIRCULATION
Set the thermostat system switch to "OFF".
Set the thermostat fan switch to "ON".
Do not change temperature setting.
With these settings, the air circulating blower will run
continuously but the air will not be heated or cooled.
SYSTEM OFF
Set the thermostat system switch to "OFF".
Set the thermostat fan switch to "AUTO".
Do not change temperature setting.
With these settings, the system is shut down, with the
exception of the control system power (24 Vac), and the
crankcase heater of the compressor (approx. 60W).
DO NOT TURN OFF THE MAIN POWER SWITCH.
NIGHT AND VACANT WEEKEND OPERATION
To reduce the operation time during low load periods,
it is recommended that the temperature setting be
increased five degrees during these periods of the cooling
season, and decreased ten degrees during the heating
season.
OWNERS INFORMATION continued
IMPORTANT NOTICE:
All gas-fired heat exchangers are completely tested at
the factory before shipment. This will remove nearly all
of the oils that have been used in the manufacturing
process, however, trace amounts may remain. When
performing the initial start-up at the jobsite, it is highly
recommended that people or any other living animals,
that may be sensitive to the residual odors or gases, NOT
be present in the conditioned space during the start-up.
In all cases, including the initial factory firing and
testing, any of the gases will be under the acceptable
level of concentration for human occupancy.
NOTE: In case emergency shut down is required, turn
off the main manual gas shut-off valve and disconnect
main electrical power to unit. These devices should be
properly labeled by the installer.
Those sensitive to odors or gases from
trace amounts of residual oils
should NOT be present in the
conditioned space during the start-up
of a gas-fired installation.
! WARNING
GAS HEATING SYSTEM
The heating section is for use with natural gas supply
pressure of 6" to 10.5" Water Column. The unit may also
utilize propane gas with a supply pressure to the valve
of 11" to 12" Water Column. The rating plate on the
furnace must be inspected to make sure the unit is
stamped for proper gas. A 1/8" pressure tap should be
field supplied by the installer in the piping just ahead of
the gas valve. The pressure tap on the outlet end of the
gas valve can be checked to verify manifold pressure of
3.2" to 3.5" for natural gas.
Combustion air is supplied by a centrifugal blower
which draws in outside air through a protected opening.
This induced draft blower introduces the air to the
burner tubes which assures even primary and secondary
air flow.
All heating system and related safety controls are 100%
tested on each unit prior to shipment.
The units are equipped with a direct spark ignition
system which proves the burner operation during each
call for heat. Power to the ignition control is 24 Vac to
reduce hazards. Burner ignition is by a high intensity
spark.
When heat is called for, the cooling system is inoperable
except for the indoor blower motor. Heating is accom-
plished by firing gas into the heat exchanger assembly.