Bryant 350MAV - Manuals - manualsarea.com

Page 2 - Electrostatic discharge can affect electronic; CARE AND MAINTENANCE; REGISTERED QUALITY SYSTEM; ri; er; Co; at; io; IST; Fig. 2—Multipoise Orientation

CSA B149.1-00 (NSCNGPIC) in Canada; and the InstallationStandards, Warm Air Heating and Air Conditioning Systems(NFPA 90B) ANSI/NFPA 90B. In Canada, refer to theCAN/CGA-B/49.1- and .2-M95 National Standard of Canada,Natural Gas and Propane Installation Codes (NSCNGPIC). Wearsafety glasses and work g...

Page 3 - WASHABLE; Fig. 4—Filter Installed for Side Inlet

WARNING: Turn off the gas and electrical supplies to the unit before performing any maintenance or service.Follow the operating instructions on the label attached tothe furnace. Failure to follow this warning could result inpersonal injury or death. The minimum maintenance that should be performed o...

Page 5 - MANIFOLD

7. Remove screws that secure manifold to burner box. (See Fig. 5.) NOTE: Do not remove burner box from cell panel. 8. Remove manifold, orifices, and gas valve as 1 assembly. 9. Remove screws attaching burner assembly in burner box. 10. Remove burner assembly from burner box. NOTE: All burners are at...

Page 7 - TUBE ROUTING

14. Check furnace operation through 2 complete heat operating cycles. Check area below inducer housing, vent pipe, andcondensate trap to ensure no condensate leaks occur. Ifleaks are found, correct the problem. WARNING: FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could res...

Page 8 - BURNER FLAME; Fig. 10—Gasket on Collector Box

box or inlet pipe, but can be removed without removingeither. After removing screw, slide igniter and brackettoward outside of burner box and pull straight out. CAUTION: The igniter is fragile. DO NOT allow it to hit the side of the burner box opening while removing orreplacing it. b. Inspect ignite...

Page 10 - Fig. 12— Control Center; F MINIMUM INSTALLED; Fig. 13—Winterizing the Furnace

1. LED flashes a current status code, or code 11, 4 times. Record this status code for further troubleshooting. 2. The inducer will start and continue to run until test is over. 3. Hot surface igniter (HSI) is energized for 15 sec, then de-energized. 4. The blower motor operates on HEATING speed for...

Page 12 - Fig. 16—Wiring Diagram; PCB; SCHEMATIC DIAGRAM

Fig. 16—Wiring Diagram A02157 PCB TR A N FRS NOTE #11 LS PRS (WHEN USED) LGPS FUSED OR CIRCUIT BREAKER DISCONNECT SWITCH (WHEN REQ’D) NOTE #2 JB L1 L1 BLWR HI/LO TO 115VAC FIELD DISCONNECT NOTE #2 EQUIPMENT GROUND SPARE-1 HEAT FAN COOL HSIR EAC-1 START OL HI MED HI MED LO LO BLWM SCHEMATIC DIAGRAM (...

Page 13 - Fig. 17—Service Label; SERVICE; refer to twinning kit instructions.; LED CODE; 2 BLOWER ON AFTER POWER UP (115 VAC or 24 VAC) -Blower runs for 90; - Low inlet gas pressure; COMPONENT TEST

Fig. 17—Service Label A02154 SERVICE To initiate the component test sequence, shut OFF the room thermostat or disconnectthe "R" thermostat lead. Briefly short the TEST/TWIN terminal to the "Com 24V" ter-minal. Status LED will flash code and then turn ON the inducer motor. The inducer...

Page 14 - START; TROUBLESHOOTING GUIDE

A02204a Is LED status light on? Is LED status light blinking rapidly without apause? Is LED status light blinking ON/OFF slowlywith a combination of short and long flashes? Determine status code. The status code is a2 digit number with the first digit determinedby the number of short flashes and the...