Pre-Start-Up/Start-Up - Bryant 547K 04-07 Series Service And Maintenance Instructions

Status
Use the Status menu (see Table 17) to check the parameter val-
ues for the various devices and sensors configured.
NOTE: For information about menu navigation and use of the
keypad, see Interface Overview on page 45.
Checkout Tests
Use the Checkout menu (see page 49) to test the damper opera-
tion and any configured outputs. Only items that are config-
ured are shown in the Checkout menu.
NOTE: For information about menu navigation and use of the
keypad, see Interface Overview on page 45.
To perform a Checkout test:
1. Scroll to the desired test in the Checkout menu using the ▲
and ▼ buttons.
2. Press the (Enter) button to select the item. RUN?
appears.
3. Press the (Enter) button to start the test. The unit pauses
and then displays IN PROGRESS. When the test is complete,
DONE appears.
4. When all desired parameters have been tested, press the
(Menu Up) button to end the test.
The Checkout tests can all be performed at the time of installa-
tion or at any time during the operation of the system as a test
that the system is operable.
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment dam-
age.
Be sure to allow enough time for compressor start-up and
shutdown between checkout tests so that you do not short-
cycle the compressors.
TROUBLESHOOTING
Alarms
The economizer module provides alarm messages that display
on the 2-line LCD.
NOTE: Upon power up, the module waits 60 minutes before
checking for alarms. This allows time for all the configured devic-
es (e.g. sensors, actuator) to become operational. The exception is
the SAT sensor which will alarm immediately.
If one or more alarms are present and there has been no keypad
activity for at least 5 minutes, the Alarms menu displays and
cycles through the active alarms.
You can also navigate to the Alarms menu at any time.
Clearing Alarms
Once the alarm has been identified and the cause has been re-
moved (e.g. replaced faulty sensor) the alarm can be cleared
from the display.
To clear an alarm, perform the following:
1. Navigate to the desired alarm.
2. Press the (Enter) button. ERASE? displays.
3. Press the (Enter) button. ALARM ERASED displays.
4. Press the (Menu up/Exit) button to complete the action
and return to the previous menu.
NOTE: If the alarm still exists after clearing it, it is redisplayed
within 5 seconds.

PRE-START-UP/START-UP

PERSONAL INJURY HAZARD
Failure to follow this warning could result in personal
injury or death.
1. Follow recognized safety practices and wear approved
Personal Protective Equipment (PPE), including safety
glasses and gloves when checking or servicing refrig-
erant system.
2. Do not use a torch to remove any component. System
contains oil and refrigerant under pressure. To remove
a component, wear PPE and proceed as follows:
a. Shut off all electrical power to unit. Apply applicable
lockout/tag-out procedures.
b. Recover refrigerant to relieve all pressure from sys-
tem using both high-pressure and low pressure ports.
c. Do not use a torch. Cut component connection tubing
with tubing cutter and remove component from unit.
d. Carefully un-sweat remaining tubing stubs when
necessary. Oil can ignite when exposed to torch
flame.
3. Do not operate compressor or provide any electric
power to unit unless compressor terminal cover is in
place and secured.
4. Do not remove compressor terminal cover until all
electrical power is disconnected and approved lock-
out/tag-out procedures are in place.
5. Relieve all pressure from system before touching or dis-
turbing anything inside terminal box whenever refriger-
ant leak is suspected around compressor terminals.
6. Never attempt to repair a soldered connection while
refrigerant system is under pressure.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
The unit must be electrically grounded in accordance with
local codes and NEC ANSI/NFPA 70 (American National
Standards Institute/National Fire Protection Association).
Proceed as follows to inspect and prepare the unit for initial
start-up:
1. Remove all access panels.
2. Read and follow instructions on all WARNING, CAU-
TION, and INFORMATION labels attached to, or shipped
with, unit.
3. Make the following inspections:
a. Inspect for shipping and handling damages such as bro-
ken lines, loose parts, or disconnected wires, etc.
b. Inspect for oil at all refrigerant tubing connections and
on unit base. Detecting oil generally indicates a refriger-
ant leak. Leak-test all refrigerant tubing connections
using electronic leak detector, halide torch, or liquid-
soap solution.
c. Inspect all field-wiring and factory-wiring connections.
Be sure that connections are completed and tight. Be
sure that wires are not in contact with refrigerant tubing
or sharp edges.
d. Inspect coil fins. If damaged during shipping and han-
dling, carefully straighten fins with a fin comb.
56
WARNING
WARNING