Bryant PAYNE 619C - Manual (Page 12)

Normal Operation — When the temperature of the room is
6° P above the selected temperature, the compressor and
outdoor fan will operate for 8 minutes. The indoor fan will
operate in low speed. If the room temperature is above the
selected temperature, but not by more than 6° F, the com­
pressor and outdoor fan operate for 4 minutes. The indoor
fan will run at low speed and will stop 30 seconds after the
compressor stops. After 3 minutes, the indoor fan runs at
low speed for 30 seconds. The normal dehumidification op­
eration is repeated for the new room temperature.
When the room temperature is within 4° F below the se­
lected temperature, the system operates for 8 minutes. The
compressor and outdoor fan operate for 3V2 minutes. The
indoor fan will operate at low speed and will stop 30 sec­
onds after the compressor stops. After 3 minutes, the in­
door fan starts in low speed for one minute. The normal
dehumidification operation is repeated for the new room
temperature.
If the room temperature is 4° F below the selected temper­
ature, the compressor, outdoor fan, and indoor fan remain
off. After 3 minutes, the indoor fan operates at low speed
for one minute. This is repeated until 8 minutes have elapsed.
The normal dehumidification operation is repeated for the
new room temperature.
HEAT PUMP Heating Mode (Heat Pump Systems Only)
— When the HEAT PUMP mode is selected, the indoor fan
will operate continuously at the selected speed if the speed
is high, medium, or low. If the indoor fan is in auto oper­
ation, the fan will change operating speeds depending on
the room temperature. The electric heat is off and the re­
versing valve will be on. The compressor cannot run for 3
minutes from the time the system starts up or for 3 min­
utes from the time it last operated. When the temperature
of the room is 8° F below the selected temperature, the unit
will operate in HEAT PUMP mode until the temperature
is 2° F above the selected temperature. If the temperature
of the room is between 2° F and 8° F below the selected
temperature, the unit operates in HEAT PUMP mode un­
til the selected temperature is reached.
In the HEAT PUMP mode, the compressor and outdoor fan
will operate until the room temperature has reached the
temperature indicated above. The indoor fan will remain
off until the discharge temperature of the fan coil is 86 F.
The fan will then operate in low speed until the discharge
temperature is 98 F. Then the fan will operate at high speed
if the room temperature is 4° F or more below the selected
temperature. The indoor fan will run at medium speed when
the room temperature is between 2° F and 4° F below the
selected temperature. The indoor fan will operate at low
speed if the room temperature is within 2° F of the se­
lected temperature. When the heating demand is satisfied,
the compressor and outdoor fan will stop and the indoor
fan will operate until the discharge air temperature is
77 F. The fan will turn off for 3 minutes, then turn on for
one minute — this will be repeated until heating is again
required.
' MAXIMUM HEATING Mode (Heat Pump Systems Only)
— This mode of operation is the same as the HEAT PUMP
heating mode, except that electric heat is used to assist the
heat pump.
• ELECTRIC HEATING Mode (Heat Pump Systems Only)
— The indoor fan operation is the same as the HEAT PUMP
mode, except that electric resistance heating only is used.
• AUTOMATIC OPERATION Mode - AUTOMATIC OPER­
ATION mode runs the system in cooling or heating at 2° F
above the selectéd temperature for cooling and 2° F below
the selected temperature for heating. In the temperature
range between heating and cooling, only the fan will oper­
ate. A minimum of 10 minutes is required between a change
from heating to cooling or from cooling to heating.
• DEMAND DEFROST Mode (Heat Pump Systems only) —
This unit uses a demand defrost system to remove frost
from the outdoor coil during heating operation. The indoor
fan and outdoor fan are shut off during defrost. For com­
plete description of defrost operation, see the controls, ser­
vice and troubleshooting guide sections of the duct-free
systems manual, available from your distributor.
• SLEEP Mode — The SLEEP mode timer will turn the unit
off when the timer reaches zero minutes. During the first
IV
2
hours from the time the SLEEP mode timer starts, the
room temperature is set back from the selected tempera­
ture a total of 4 F in cooling and 6 F in heating.
• AWAKE Mode — The awake timer will turn the unit on
when the timer reaches zero minutes. The unit will start
in the same mode and at the same selected temperature as
when the system shut off.
NOTE:
The system can be programmed for the sleep mode
or the awake mode, but it cannot be programmed for both of
these modes simultaneously.
CLEANING AND MAINTENANCE
For proper system operation we recommend that the clean­
ing and maintenance operations in Table 6 be performed.
I. LUBRICATION
The indoor-fan motor, automatic air sweep motor, and the
outdoor fan motor are factory lubricated and require no
oiling.
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