Instruction/ maintenance manual of the product 393AAV Bryant
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NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS SAFETY CONSIDERATIONS .....................................................1 INTRODUCTION ....................................................................
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. INTRODUCTION These instructions are written for the Gas-Fired Induced Combus- tion Furnace. ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE CAUTION: Electrostatic discharge can affect electronic components.
b. Remove filter cabinet door. c. Slide filter out of cabinet. d. If equipped with permanent, washable filter, clean filter by spraying cold tap water through filter in opposite direction of airflow. Rinse filter and let dry. Oiling or coating of the filter is not recommended.
WARNING: Blower access door switch opens 115-v power to control center. No component operation can occur. Caution must be taken when manually closing this switch for service purposes. Failure to follow this warn- ing could result in electrical shock, personal injury, or death.
(5.) Repeat foregoing procedures until each cell in furnace has been cleaned. (6.) Using vacuum cleaner, remove residue from each cell. (7.) Using vacuum cleaner with soft brush attachment, clean burner assembly. (8.) Reinstall cell inlet plates and burner assembly.
The 24-v circuit contains an automotive-type, 3-amp fuse located on the control. (See Fig. 6.) Any shorts of the 24-v wiring during installation, service, or maintenance will cause this fuse to blow. If fuse replacement is required, use ONLY a 3-amp fuse.
Fig. 7—Unit Wiring Diagram A00304 PCB BLOWER OFF DELAY SELECTION CHART 90 SEC 135 SEC 180 SEC 225 SEC GVR H I/L O RELA Y SEC-1 SEC-2 PL1 3 2 1 6 5 4 9 87 LED TEST/TWIN BLOWER OFF DELAY G R Y W C HUM HSI R I DR BL WR BLOWER SPEED SELECT FU1 COO L HEA T L2 PL3 PL2 VA C 120 L1 PR1 1 2 1 2 3 PR2 24 VAC -3A FUS E SP ARE-2 SP ARE-1 EAC-1 EAC-2 C 1.
Fig. 8—Service Label A99233 SER VICE G R Y W Com HUM TEST LED LED CODE ST A TUS 24V 11 12 13 14 21 22 23 24 31 33 34 * 9 8 6 5 32 1 4 7 COMPONENT TEST NO PREVIOUS CODE - Stored status codes are erased when pow er (115V AC or 24V AC) to control is interrupted or 48 hours after each f ault is cleared.
4. If furnace is operating properly and LED indicates proper operation, replace control access door. 5. Component Test can also be initiated by performing the following: a. Remove control access door. b. Remove blower access door. c. Manually close blower access door switch.
Troubleshooting Guide A99123a Is circuit breaker closed? Close door switch and go to start. Is red LED status light on? Is door switch closed? Is red LED status light blinking rapidly without a pause? Is there 1 15v going to switch? Replace door switch.
A99123b 11 NO PREVIOUS F A UL T - Faults are erased after 48 hrs or whenever power (1 15v or 24v) is interrupted. Run system through a heating or cooling cycle to check system. 12 BLO WER ON AFTER PO WER UP (115V OR 24V) - Normal operation. Blower will run for 90 sec when furnace power is interrupted during a call for heat, R-W closed.
A94328 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenanc.
An important point after buying a device Bryant 393AAV (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bryant 393AAV yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bryant 393AAV - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bryant 393AAV you will learn all the available features of the product, as well as information on its operation. The information that you get Bryant 393AAV will certainly help you make a decision on the purchase.
If you already are a holder of Bryant 393AAV, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bryant 393AAV.
However, one of the most important roles played by the user manual is to help in solving problems with Bryant 393AAV. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bryant 393AAV along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
