Bryant F Bedienungsanleitung Seite 34
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34
Table 14 – IGC Board LED Alarm Codes
LED
FLASH
CODE
DESCRIPTION
ACTION TAKEN BY
CONTROL
RESET METHOD PROBABLE CAUSE
On Normal Operation — — —
Off Hardware Failure No gas heating. —
Loss of power to the IGC. Check 5 amp
fuse on IGC, power to unit, 24V circuit
breaker, transformer, and wiring to the
IGC.
2
Flashes
Limit Switch Fault
Gas valve and igniter
Off.
Indoor fan and inducer
On.
Limit switch closed,
or heat call (W) Off.
High temperature limit switch is open.
Check the operation of the indoor
(evaporator) fan motor.
Ensure that the supply-air temperature
rise is within the range on the unit
nameplate. Check wiring and limit switch
operation.
3
Flashes
Flame Sense Fault
Indoor fan and inducer
On.
Flame sense normal.
P o wer reset for LED
reset.
The IGC sensed a flame when the gas
valve should be closed. Check wiring,
flame sensor, and gas valve operation.
4
Flashes
Four Consecutive Limit
Switch Fault
No gas heating.
Heat call (W) Off.
P o wer reset for LED
reset.
4 consecutive limit switch faults within a
single call for heat. See Limit Switch Fault.
5
Flashes
Ignition Fault No gas heating.
Heat call (W) Off.
P o wer reset for LED
reset.
Unit unsuccessfull y attempted ignition for
15 minutes. Check igniter and flame
sensor electrode spacing, gaps, etc.
Check flame sense and igniter wiring.
Check gas valve operation and gas
supply.
6
Flashes
Induced Draft Motor
Fault
If heat off: no gas
heating.
If heat on: gas valve
Off and inducer On.
Inducer sense
normal, or heat call
(W) Off.
Inducer sense On when heat call Off, or
inducer sense Off when heat call On.
Check wiring, voltage, and operation of
IGC motor. Check speed sensor wiring to
IGC.
7
Flashes
Rollout Switch Lockout
Gas valve and igniter
Off.
Indoor fan and inducer
On.
Po wer reset.
Rollout switch has opened. Check gas
valve operation. Check induced-draft
blower wheel is properly secured to motor
shaft.
8
Flashes
Internal Control Lockout No gas heating. Po wer reset.
IGC has sensed internal hardware or
software error. If fault is not cleared by
resetting 24 v power, replace the IGC.
Check gas valve connections to IGC
terminals. BRN lead must be on Pin 11.
9
Flashes
Temporary Software
Lockout
No gas heating.
1 hour auto reset, or
power reset.
Electrical interference is disrupting the
IGC software.
LEGEND
IGC --- Integrated Gas Unit Control
LED --- L i g h t --- E m i t t i n g D i o d e
NOTES:
1. There is a 3---second pause between alarm code displays.
2. If more than one a larm code exists, all applicable alarm codes will be displayed in numerical sequence.
3. Alarm codes on the IGC will be lost if power to the unit is interrupted.
580J
- NOMINAL 7.5 to 12.5 TONS 1
- UNIT ARRANGEMENT AND ACCESS 2
- Routine Maintenance 3
- Seasonal Maintenance 3
- SUPPLY FAN (BLOWER) SECTION 4
- Condenser Coil 6
- Evaporator Coil 6
- PURONR (R--410A) REFRIGERANT 8
- (Part No. EC39EZ067) 9
- COOLING CHARGING CHARTS 10
- 12.5 TON CIRCUIT 1 12
- 12.5 TON CIRCUIT 2 13
- 0.14 in +0.0/-0.03 15
- CONVENIENCE OUTLETS 16
- SMOKE DETECTORS 17
- Smoke Detector Locations 18
- Sampling Tube 19
- Return Air 19
- Sensor and Controller Tests 20
- FLASHES DESCRIPTION 21
- 2 25--- 50% dirty 21
- 3 51--- 75% dirty 21
- 4 76--- 99% dirty 21
- Detector Cleaning 22
- Test/reset 23
- PROTECTIVE DEVICES 24
- Control Circuit, 24--V 25
- Fuel Types and Pressures 25
- Flue Gas Passageways 26
- Combustion--Air Blower 26
- Burners and Igniters 27
- INTEGRATED GAS UNIT 28
- CONTROLLER (IGC) 28
- HOLE IN END PANEL (HIDDEN) 28
- 125,000/90,000 BTUH INPUT 29
- 180,000/120,000 BTUH INPUT 29
- 240,000/180,000 BTUH INPUT 29
- 250,000/200,000 BTUH INPUT 29
- Orifice Replacement 30
- Red LED-Status 31
- Table 11 – Orifice Sizes 32
- CONDENSER COIL SERVICE 35
- RTU--MP CONTROL SYSTEM 35
- EconoMi$er 2 39
- Economizer Controls 40
- Connecting Discrete Inputs 42
- Power Exhaust (output) 43
- RTU-- MP Troubleshooting 44
- Table 17 – LEDs 45
- BACnet MS/TP 47
- ECONOMI$ER SYSTEMS 50
- EconoMi$er IV 52
- HIGH LIMIT 54
- RANGE CONFIGURATION (ppm) 55
- WIRING DIAGRAMS 59
- PRE--START-- UP 62
- START--UP, GENERAL 62
- START--UP, RTU--MP CONTROL 64
- the current 66
- OPERATING SEQUENCES 67
- Heating With EconoMi$er IV 68
- Demand Controlled Ventilation 68
- Supplemental Controls 68
- RTU--MP Sequence of Operation 68
- if unoccupied 70
- The indoor fan will be 70
- FASTENER TORQUE VALUES 71
- Model Number Nomenclature 72
- Serial Number Format 72
- APPENDIX II. PHYSICAL DATA 73
- APPENDIX III. FAN PERFORMANCE 75
- FAN PERFORMANCE (cont.) 76
- Pulley Adjustment 79
- ELECTRICAL INFORMATION 80
- Wiring Diagrams 82
- Catalog No.SM580J---02 83
- UNIT START-UP CHECKLIST 85
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