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Bryant Deluxe 340AAV Service And Maintenance Instructions

B series 4-way multipoise fixed-capacity condensing sizes 040--120
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340AAV
Deluxe 4- - Way
Multipoise Fixed- - Capacity
Condensing Gas Furnace
NOTE: Read the entire instruction manual before starting the
installation.

TABLE OF CONTENTS

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WARNING
!
ELECTRICAL
SHOCK, FIRE, OR EXPLOSION
HAZARD
Failure to follow safety warnings exactly could result in
dangerous operation, personal injury, death, or property
damage.
- - Before servicing, disconnect all electrical power to furnace.
- -When servicing controls, label all wires prior to
disconnecting. Reconnect wires correctly.
- - Verify proper operation after servicing.
Service and Maintenance Instructions
For Sizes 040- -120, Series B
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SAFETY CONSIDERATIONS

Recognize safety information. This is the safety- -alert symbol
When you see this symbol on the furnace and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
PAGE
CAUTION. These words are used with the safety- -alert symbol.
DANGER identifies the most serious hazards which will result in
1
severe personal injury or death. WARNING signifies a hazard
2
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may result in minor personal
. . .
2
injury or product and property damage. NOTE is used to highlight
3
suggestions which will result in enhanced installation, reliability, or
3
operation.
4
!
6
7
ELECTRICAL SHOCK, FIRE, OR EXPLOSION
7
HAZARD
7
Failure to follow this warning could result in possible
damage to this equipment, personal injury, or death.
8
The ability to properly perform maintenance on this
10
equipment requires certain expertise, mechanical skills,
11
tools, and equipment. If you do not possess these, do not
attempt to perform any maintenance on this equipment
11
other than those procedures recommended in the User's
13
Manual.
13
13
!
13
14
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could property damage,
personal injury, or death.
Never store anything on, near, or in contact with the furnace,
such as:
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum
cleaners, or other cleaning tools.
2. Soap powders, bleaches, waxes or other cleaning
compounds, plastic or plastic containers, gasoline, kerosene,
cigarette lighter fluid, dry cleaning fluids, or other volatile
fluids.
3. Paint thinners and other painting compounds, paper bags,
or other paper products.
1
WARNING
WARNING
.

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  • Page 1: Table Of Contents

    340AAV Deluxe 4- - Way Multipoise Fixed- - Capacity Condensing Gas Furnace Service and Maintenance Instructions For Sizes 040- -120, Series B SAFETY CONSIDERATIONS NOTE: Read the entire instruction manual before starting the installation. Recognize safety information. This is the safety- -alert symbol When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for personal injury.

  • Page 2: General

    CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in damage to furnace. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. GENERAL This furnace can be installed as a direct vent (2- -pipe) or non- -direct vent (1- -pipe) condensing gas furnace.

  • Page 3: Care And Maintenance

    person’s hand during grounding will be satisfactorily dis- charged. 3. After touching the chassis, you may proceed to service the control or connecting wires as long as you do nothing that recharges your body with static electricity (for example; DO NOT move or shuffle your feet, DO NOT touch ungroun- ded objects, etc.).

  • Page 4: Blower Motor And Wheel Maintenance

    Table 1 – Furnace Air Filter Table FILTER QUANTITY AND SIZE * FURNACE CASING WIDTH SIDE RETURN BOTTOM RETURN* FILTER TYPE* IN (MM) IN (MM) IN (MM) (1) 16 x 25 x 3/4 (1) 16 x 25 x 3/4 17--- 1/2 (445) 3/4”...
  • Page 5 The following items should be performed by a qualified service 11. Reinstall control box, transformer, and door switch as- technician. sembly on blower shelf. Clean blower motor and wheel as follows: 12. Reinstall condensate trap and tubing if previously removed. 1.

  • Page 6: Cleaning Burners

    CELL PANEL MANIFOLD MOUNTING SCREWS GASKET MANIFOLD GAS VALVE REGULATOR FITTING CONTROL IGNIT ER WIRES MUST VALVE BE PLACED IN THIS SLOT A02312 A05074 Fig. 6 - - Burner Box Assembly Fig. 7 - - Igniter Wire Placement Step 3 — Cleaning Burners 12.

  • Page 7: Cleaning Heat Exchangers

    9. Remove two screws attaching top filler panel and rotate up- WARNING wards to gain access to screws attaching burner box to cell panel. FIRE, EXPLOSION, UNIT DAMAGE HAZARD 10. Remove screws attaching burner box to cell panel. (See Fig. Failure to follow this warning could result in personal NOTE: Burner box, cover, manifold, gas valve, and burner...

  • Page 8: Flushing Collector Box And Drainage System

    18. Replace main furnace door. Secondary Heat Exchangers NOTE: The condensing side (inside) of the secondary heat exchangers CANNOT be serviced or inspected. A small number of bottom outlet openings can be inspected by removing the inducer assembly. See Flushing Collector Box and Drainage System section for details on removing inducer assembly.
  • Page 9 TUBE ROUTING Furnace is shipped from factory in upflow configuration. Pressure tube and drain tube routing MUST match the diagrams below. Tube location when used in UPFLOW application Condensate Trap on LEFT Condensate Trap; Factory Installed Side Optional in Blower Shelf BURNER ENCLOSURE (Blower access panel removed) BURNER ENCLOSURE...

  • Page 10: Servicing Hot Surface Igniter

    16. Replace main furnace door. BURNER FLAME Step 6 — Servicing Hot Surface Igniter BURNER The igniter does NOT require annual inspection. Check igniter resistance before removal. 1. Turn off gas and electrical supplies to furnace. CAUTION BURN HAZARD Failure to follow this caution may result in personal injury. Allow igniter to cool before removal.

  • Page 11: Electrical Controls And Wiring

    Step 8 — Checking Heat Tape Operation (If Applicable) In applications where the ambient temperature around the furnace is 32_F (0_C) or lower, freeze protection measures are required. If this application is where heat tape has been applied, check to ensure it will operate when low temperatures are present.
  • Page 12 FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-V WIRING NOTE 2 THERMOSTAT FIVE WIRE FIELD-SUPPLIED TERMINALS DISCONNECT THREE-WIRE HEATING-ONLY 208/230- OR BLOWER DOOR SWITCH 460-V THREE PHASE 208/230-V SINGLE PHASE AUXILIARY 115-V FIELD- J-BOX SUPPLIED NOTE 1 DISCONNECT CONDENSING...

  • Page 13: Winterizing

    CAUTION UNIT AND PROPERTY DAMAGE Failure to follow this caution may result in furnace component failures or water property damage. Operating a unit without a filter or with the blower access door removed could cause damage to the furnace blower motor.

  • Page 14: Component Tests

    A99118 A99119 Fig. 18 - - Inducer Housing Drain Tube Fig. 19 - - Funnel in Drain Tube and Antifreeze Running Through Trap Component Test Component test sequence for single- -stage furnace is as follows: NOTE: The furnace control component test allows all a.

  • Page 15: Component Test

    SERVICE If status code recall is needed, briefly remove then reconnect one main limit wire to display stored status code. On RED LED boards do not remove power or blower door before initiat- ing status code recall. After one status code recall is completed component test will occur. LED CODE STATUS CONTINUOUS OFF - Check for 115VAC at L1 &...
  • Page 16 PRINTED CIRCIUT BOARD PRINTED CIRCIUT BOARD A02271 Fig. 21 - - Wiring Diagram...
  • Page 17 A05107...
  • Page 18 A05096...
  • Page 19 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenance • Installation Overview • Operating Sequence A large selection of product, theory, and skills programs is available, using popular video-based formats and materials.
  • Page 20 Catalog No. SM340AAV ---01 E2008 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 12/08 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

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