619E Control System; Wireless Remote Controllers; After Extended Shutdowns; Seasonal Changeovers - Bryant 619E Installation, Start-Up And Service Instructions Manual

7. Unit is shipped with valve stems frontseated and caps
factory installed. Replace stem caps after system is
opened to refrigerant flow (backseated). Replace caps
finger tight.
8. With the remote controller, turn on the unit and oper-
ate in each mode (as applicable) for 15 minutes to test
for proper operation. Do not operate in Cooling mode if
outdoor temperature is below 55 F (538A, 538D) or
0° F (538S) unless unit is equipped with low ambient
control (538A, 538D) or winter start kit (538S). Do not
operate in Heating mode (heat pump systems only) if
the outdoor temperature is above 75 F.
9. Test for proper refrigerant charge using the superheat
method (538A, 538D) or subcooling method (538S).
10. Explain basic system operation to the owner.
I. 619E CONTROL SYSTEM
The 619E unit is equipped with a microprocessor control which
operates the system. This control is located in the control box
of the fan coil unit, with thermistors located in the fan coil
inlet and on the indoor coil. The 619E heat pump fan coil units
also have thermistors located on the outdoor coil and in the
outdoor air inlet. These thermistors monitor system opera-
tion and control the operating mode. To change settings or
modes of operation, use the factory-supplied infrared wire-
less remote controller. This controller allows the fan coil unit
to be operated from within the same room without any wire
connections to the unit.
II. WIRELESS REMOTE CONTROLLERS
A wireless remote controller is supplied for system operation
of all high wall units. Each battery-operated wireless (infra-
red) remote controller may be used to control more than one
unit. The wireless remote controller has a maximum range
of 20 feet. The fan coil unit is equipped with an emergency
switch which allows operation if the remote controller mal-
functions or is misplaced. Because the controller uses infra-
red communication, all of the following must be true for the
controller to work properly:
1. The power must be on to the fan coil unit.
2. The batteries in the controller must be good.
3. The controller must be within range of and pointed di-
rectly at the fan coil unit.
4. The fan coil unit's 3-position switch must be set in the
remote position.
The remote controller includes a wall-mounted bracket. To
install the bracket, attach bracket to the wall as shown in
Fig. 17 using, double-sided tape included in remote control-
ler assembly. Install factory-supplied batteries into the re-
mote controller per To Install or Replace Remote Controller
Batteries section on page 16, and place the controller into the
bracket so that it will be ready for use.
Fig. 17 — Mounting Remote Controller Bracket
III. AFTER EXTENDED SHUTDOWNS
If the system has been turned off for more than 12 hours,
turn on the indoor and outdoor unit disconnect switches to
supply power to the system for 12 hours BEFORE starting
the system.
IV. SEASONAL CHANGEOVERS
When changing heat pump system from cooling to heating or
heating to cooling, or before starting cooling only system af-
ter it has been out of use for the winter season, perform the
following steps BEFORE starting the system:
1. Inspect and clean the outdoor unit, particularly the coil.
2. Clean or replace the air filters in the indoor unit.
3. Clean the indoor unit drain pan and drain pipe, and re-
move any obstructions.
4. Turn on indoor and outdoor unit disconnect switches to
supply power to the system 12 hours before starting the
system.
V. TO TURN THE UNIT ON AND OFF
To turn the unit on, press the orange ON/OFF button (See
Fig. 18). Unit will start. To stop unit operation, press the ON/
OFF button again. Unit will stop. Refer to Owner's Manual
enclosed with the fan coil unit for full remote control operat-
ing details.
VI. ADJUSTING AIRFLOW
The airflow direction may be adjusted up and down using the
remote controller, and from side to side by manually moving
the vents. For cooling only units and heat pump units when
in the cooling mode, set the louvers to discharge straight out
(parallel to the floor) (see Fig. 19). For the heat pump units
operating in heating mode, it is recommended that the air
discharge louvers be set to discharge vertically (see Fig. 19).
The swing range shown in Fig. 19 is the range which will
provide maximum occupant comfort in each mode. It is rec-
ommended that the louvers be positioned within this range
(using the remote controller).
NOTE: The full swing range for the mode selected will auto-
matically be used if auto. fan mode is selected.
Fig. 18 — Remote Controller
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