Bryant 345MAV Bedienungsanleitung

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NOTE: Read the entire instruction manual before starting the
installation.
This symbol indicates a change since the last issue.
Table of Contents Page
DIMENSIONAL DRAWING........................................................2
SAFETY CONSIDERATIONS.....................................................3
Clearances to Combustibles......................................................3
CODES AND STANDARDS........................................................4
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS........5
INTRODUCTION..........................................................................5
APPLICATIONS............................................................................5
General ......................................................................................5
Upflow Applications.................................................................6
Downflow Applications............................................................7
Horizontal Left (Supply-Air Discharge) Applications ............9
Horizontal Right (Supply-Air Discharge) Applications ........11
LOCATION..................................................................................12
General ....................................................................................12
Furnace Location Relative to Cooling Equipment ................13
Hazardous Locations...............................................................13
AIR FOR COMBUSTION AND VENTILATION ....................13
General ....................................................................................13
Unconfined Space...................................................................14
Confined Space.......................................................................14
INSTALLATION.........................................................................15
Leveling Legs (If Desired).....................................................15
Installation In Upflow or Downflow Applications................17
Installation In Horizontal Applications..................................17
Air Ducts.................................................................................17
General Requirements .......................................................17
Ductwork Acoustical Treatment .......................................17
Supply Air Connections ....................................................17
Return Air Connections.....................................................18
Filter Arrangement ............................................................18
Bottom Closure Panel........................................................19
Gas Piping..........................................................................19
Electrical Connections ............................................................20
115-v Wiring......................................................................21
24-v Wiring........................................................................21
Accessories ........................................................................22
Venting....................................................................................22
Removal of Existing Furnaces from Common
Vent Systems.....................................................................22
Combustion-Air and Vent Piping .....................................23
Vent Termination...............................................................31
Multiventing.......................................................................31
Condensate Drain....................................................................31
General...............................................................................31
Application.........................................................................33
Condensate Drain Protection.............................................33
START-UP, ADJUSTMENTS AND
SAFETY CHECK...................................................................33
General...............................................................................33
Prime Condensate Trap With Water.................................34
Purge Gas Lines ................................................................34
Sequence of Operation ......................................................34
Heating Mode...............................................................34
Cooling Mode...............................................................35
Continuous Blower Mode............................................35
Heat Pump Mode .........................................................35
Component Test ...........................................................35
Adjustments .......................................................................36
Set Gas Input Rate.......................................................36
Set Temperature Rise...................................................40
Blower Off Delay (Heat Mode) ..................................41
Set Thermostat Heat Anticipator.................................41
Check Safety Controls.......................................................41
Check Primary Limit Control......................................41
A93040
Fig. 1—Multipoise Orientations
A93041
UPFLOW
DOWNFLOW
HORIZONTAL
LEFT
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW
HORIZONTAL
RIGHT
ama
CERTIFIED
As an ENERGY STAR® Part-
ner, BRYANT Heating & Cool-
ing Systems Company has de-
termined that this product meets
the ENERGY STAR® guide-
lines for energy efficiency.
REGISTERED QUALITY SYSTEM
installation, start-up,
and operating instructions
4-WAY MULTIPOISE
FIXED-CAPACITY
CONDENSING GAS FURNACE
Cancels: II 345M-40-7 II 345M-40-8
12-03
345MAV
Series F
—1—
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1 2 3 4 5 6 ... 43 44

Inhaltsverzeichnis

Seite 1 - Series F

NOTE: Read the entire instruction manual before starting theinstallation.This symbol → indicates a change since the last issue.Table of Contents PageD

Seite 2 - INSTALLATION

2. Inducer Housing Drain Tubea. Remove and discard LOWER (molded) inducer housingdrain tube which was previously connected to conden-sate trap.b. Use

Seite 3 - DIMENSIONS (IN.)

NOTE: A 12-in. minimum horizontal pipe section is recom-mended with short (5 to 8 ft) vent systems. This recommendationis to reduce excessive condensa

Seite 4

b. Remove and discard UPPER (molded) inducer housingdrain tube which was previously connected to conden-sate trap.c. Install cap and clamp on UPPER in

Seite 5

• be provided with ample space for servicing and cleaning.Always comply with minimum fire protection clearancesshown on the furnace clearance-to-combu

Seite 6 - 2-IN. CPVC STREET

CAUTION: Air for combustion must not be contami-nated by halogen compounds, which include fluoride,chloride, bromide, and iodide. These elements are f

Seite 7

2. If combustion air is taken from outdoors through horizontalducts, the openings and ducts MUST have at least 1 sq in.of free area per 2000 Btuh of t

Seite 8

TABLE 1—OPENING DIMENSIONS (IN.)FURNACECASINGWIDTHAPPLICATIONPLENUM OPENING FLOOR OPENINGABCD17-1/2Upflow Applications 16 24-1/8 16-5/8 24-3/4Downflow

Seite 9

1. Position furnace on its back. Locate and drill a 5/16-in.diameter hole in each bottom corner of furnace. (See Fig.19.) Holes in bottom closure pane

Seite 10

DOWNFLOW FURNACESConnect supply-air duct to supply-air opening on furnace. Thesupply-air duct attachment must ONLY be connected to furnacesupply/outle

Seite 11

Factory-supplied washable framed filters are shipped in blowercompartment. Determine location for filter and relocate filterretaining wire if necessar

Seite 12

Check Pressure Switch...41CHECKLIST...

Seite 13 - PROTECTION REQUIRED

WARNING: Gas valve ON and OFF switch MUST befacing forward or tilted upward. (See Fig. 46.) Failure tofollow this warning could result in property dam

Seite 14 - TO BURNERS

WARNING: Blower access door switch opens 115-vpower to control center. No component operation canoccur. Do not bypass or close switch with panel remov

Seite 15

C. Accessories1. Electronic Air Cleaner (EAC)Two quick-connect terminals marked EAC-1 and EAC-2are provided for EAC connection. (See Fig. 33.) Thesete

Seite 16

WARNING:CARBON MONOXIDE POISONING HAZARDFailure to follow the steps outlined below for each appliance connected to the venting system being placed int

Seite 17

Fig. 32—Wiring DiagramA02271PCBTRANFRSNOTE #11LSPRS(WHEN USED)LGPSFUSED OR CIRCUIT BREAKERDISCONNECT SWITCH (WHEN REQ’D)NOTE #2JBL1L1BLWRTO 115VAC FI

Seite 18

COMBUSTION AIR PIPECAUTION: Combustion air must not be taken frominside a structure that is frequently contaminated byhalogens, which include fluoride

Seite 19 - 2-IN. WIDE

a. Permanently install perforated disk assembly (factory-supplied in loose parts bag) in combustion-air elbowusing RTV or by cementing. (See Fig. 35.)

Seite 20 - FRONT FILLER

2. Attach combustion-air inlet pipe.a. Determine location of combustion-air intake pipe con-nection to combustion-air intake housing as shown inFig. 3

Seite 21

CAUTION: When vent pipe is exposed to temperaturesbelow freezing, such as when it passes through anunheated space or when a chimney is used as a racew

Seite 22

→ Table 8—Other than Direct Vent Termination ClearanceA03228AXBVVVVXXAIR SUPPLY INLETVVENT TERMINALAREA WHERE TERMINAL IS NOT PERMITEDABBBBBCDEFJILHMK

Seite 23

Fig. 2—Dimensional DrawingDIMENSIONS (IN.)UNIT SIZE A D E024040 17-1/2 15-7/8 16036040 17-1/2 15-7/8 16024060 17-1/2 15-7/8 16036060 17-1/2 15-7/8 160

Seite 24 - Fig. 32—Wiring Diagram

WARNING: Vent pipe must be installed and fullyseated against inducer housing internal stop. Clamp mustbe tightened to prevent any condensate leakage.

Seite 25 - See notes at end of table

16. Use appropriate methods to seal openings where vent pipepasses through roof or sidewall.D. Extended Exposed Sidewall PipesSidewall vent pipe termi

Seite 26

Condensate trap MUST be used for all applications.An external trap is not required when connecting the field drain tothis condensate trap.The field dr

Seite 27

Furnace condensate is mildly acidic, typically in the pH range of3.2 to 4.5. Due to corrosive nature of unneutralized condensate, acondensate pH neutr

Seite 28

CAUTION: These furnaces are equipped with a manualreset limit switch in burner box. This switch will openand shut off power to gas valve if an overhea

Seite 29

a. Inducer Prepurge Period- As the inducer motor IDMcomes up to speed, the pressure switch contacts PRSclose, 24 vac power is supplied for a field ins

Seite 30

1. Remove blower access door.2. Disconnect the thermostat R lead from furnace control.3. Manually close blower door switch.4. For approximately 2 sec,

Seite 31 - 24-1/2 12 ± 1/2

TABLE 9—MODEL 345MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT(TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2% FOR EACH 1000 FT

Seite 32

TABLE 9—MODEL 345MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT Continued(TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2% FOR EAC

Seite 33 - (3 WRAPS MINIMUM)

TABLE 9—MODEL 345MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT Continued(TABULATED DATA BASED ON 20,000 BTUH PER BURNER, DERATED 2% FOR EAC

Seite 34

is used to identify unsafe practices which would result in minorpersonal injury or product and property damage. NOTE is used tohighlight suggestions w

Seite 35

CANADAAt installation altitudes from 2000 to 4500 ft, thisfurnace must be derated 5% by an authorized GasConversion Station. To determine correct inpu

Seite 36 - OM-24v terminals are jumpered

WARNING: Disconnect 115-v electrical power beforechanging speed tap. Failure to follow this warning couldresult in personal injury.4. To change blower

Seite 37

3. Turn on 115-v power to furnace.4. Set thermostat to "call for heat" and wait 1 minute. Whenpressure switch is functioning properly, hot s

Seite 38

CHECKLIST—INSTALLATIONLOAD CALCULATION____________ Heating Load (Btuh)____________ Cooling Load (Btuh)____________ Furnace Model SelectionVENT PIPINGT

Seite 39

© 2003 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231—44—Printed in U.S.A. 345m408 Catalog No. 5334-520

Seite 40 - MANIFOLD

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONSCAUTION: Electrostatic discharge can affect electroniccomponents. Take precautions during furnace installatio

Seite 41 - 10 TURNS AROUND JAWS

II. UPFLOW APPLICATIONSAn upflow furnace application is where furnace blower is locatedbelow combustion and controls section of furnace, and condition

Seite 42

C. Condensate Trap Location (Alternate UpflowOrientation)An alternate location for the condensate trap is the left-hand sideof casing. (See Fig. 2 and

Seite 43 - CHECKLIST—INSTALLATION

(b.) Clamp tube to prevent any condensate leakage.(2.) Condensate Trap Located on Right Side of Casing(a.) Install drain tube coupling (factory-suppli

Seite 44

2. Use smaller diameter tube (factory-supplied in loose partsbag) to extend collector box pressure tube (green label)which was previously connected to

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