Carrier INDUCED COMBUSTION 58YAV Service And Maintenance Instructions Download

Page: 6 / 12

Fig. 6—Unit Wiring Diagram

A00304

PCB

BLOWER OFF DELAY

SELECTION CHART

90 SEC

135 SEC

180 SEC

225 SEC

GVR

HI/LO

RELAY

SEC-1

SEC-2

PL1

3 2 1

6 5 4
9 8 7

LED

TEST/TWIN

BLOWER

OFF

DELAY

G
R
Y

W
C

HUM

HSIR

IDR

BLWR

BLOWER

SPEED

SELECT

FU1

COOL

HEAT

PL3

PL2

VAC

120

PR1

1
2
3

PR2

24 VAC-3A

FUSE

SPARE-2

SPARE-1

EAC-1

EAC-2

PL5

WHT

BLK

WHT

HSI

BLK

WHT

WHT (COM)

RED (LO)

BLU (MED LO)

NOTE #7

START

BLWM

YEL (MED HI)

BLK (HI)

BRN

BLU

RED

BLK

WHT

WHT (COM)

CAP

RED

ORN

FUSED DISCONNECT

SWITCH (WHEN REQ’D)

NOTE #4

FU2

BLK

WHT

LEGEND

ALS

AUXILIARY LIMIT SWITCH, OVERTEMP. -MANUAL RESET, SPST-(N.C.)

BLWR

BLOWER MOTOR RELAY, SPST-(N.O.)

BLWM BLOWER MOTOR
BVSS

BLOCKED VENT SHUTOFF SWITCH, SPST - (N.C.)

CAP

CAPACITOR

CPU

MICROPROCESSOR AND CIRCUITRY

DSS

DRAFT SAFEGUARD SWITCH

EAC-1

ELECTRONIC AIR CLEANER CONNECTION (115 VAC 1.5 AMP MAX.)

EAC-2

ELECTRONIC AIR CLEANER CONNECTION (COMMON)

FUSIBLE LINK

FRS

FLAME ROLLOUT SW. -MANUAL RESET, SPST-(N.C.)

FSE

FLAME PROVING ELECTRODE

FU1

FUSE, 3 AMP, AUTOMOTIVE BLADE TYPE, FACTORY INSTALLED

FU2

FUSE OR CIRCUIT BREAKER CURRENT INTERRUPT DEVICE
(FIELD INSTALLED & SUPPLIED)

GAS VALVE-REDUNDANT OPERATORS

GVR

GAS VALVE RELAY, DPST-(N.O.)

HI/LO

BLOWER MOTOR SPEED CHANGE RELAY, SPDT

HSI

HOT SURFACE IGNITOR (115 VAC)

HSIR

HOT SURFACE IGNITOR RELAY, SPST-(N.O.)

HUM

24VAC HUMIDIFIER CONNECTION (.5 AMP. MAX.)

IDM

INDUCED DRAFT MOTOR

IDR

INDUCED DRAFT RELAY, SPST-(N.O.)

ILK

BLOWER ACCESS PANEL INTERLOCK SWITCH, SPST-(N.O.)

JUNCTION BOX

LED

LIGHT-EMITTING DIODE FOR STATUS CODES

LGPS

LOW GAS PRESSURE SWITCH, SPST-(N.O.)

LIMIT SWITCH, AUTO RESET, SPST(N.C.)

AUTO-RESET INTERNAL MOTOR OVERLOAD TEMP. SW.

PCB

PRINTED CIRCUIT BOARD

PL1

9-CIRCUIT CONNECTOR

PL2

2-CIRCUIT PCB CONNECTOR

PL3

3-CIRCUIT IDM CONNECTOR

PL5

2-CIRCUIT HSI/PCB CONNECTOR

PRS

PRESSURE SWITCH, SPST-(N.O.)

TEST/TWIN

COMPONENT TEST & TWIN TERMINAL

TRAN

TRANSFORMER-115VAC/24VAC

JUNCTION

UNMARKED TERMINAL

PCB TERMINAL

FACTORY WIRING (115VAC)

FACTORY WIRING (24VAC)

FIELD WIRING (115VAC)

FIELD WIRING (24VAC)

CONDUCTOR ON PCB

FIELD WIRING TERMINAL

FIELD GROUND

EQUIPMENT GROUND

FIELD SPLICE

PLUG RECEPTACLE

BLWR

HI/LO

TO 115VAC FIELD DISCONNECT

NOTE #4

EQUIPMENT GROUND

SPARE-2

HEAT

SPARE-1

COOL

NOTE #7

COM

HSIR

EAC-1

START

COM

MED HI

MED LO

BLWM

SCHEMATIC DIAGRAM

(NATURAL GAS & PROPANE)

EAC-2

HSI

PL5

PL2

3 PL3

PR2

115VAC

PR1

TRAN

24VAC

IDR

TEST/TWIN

FU1

NOTE #6

CAP

PL1

FSE

CPU

HSIR

IDR

BLWR

GVR-2

SEC-1

HI/LO

GVR

SEC-2

NOTES:

322869-101 REV. H

1. If any of the original equipment wire is replaced use wire rated for 105

2. Inducer (IDM) and blower (BLWM) motors contain internal auto-reset thermal overload switches (OL).
3. Blower motor speed selections are for average conditions, see installation instructions for details on

optimum speed selection.

4. Use only copper wire between the disconnect switch and the furnace junction box (JB).
5. This wire must be connected to furnace sheetmetal for control to detect flame.
6. Replace only with a 3 amp fuse.
7. Yellow lead not on all motors.
8. Blower-on delay, gas heating 45 seconds, cooling or heat pump 2 seconds.
9. Blower-off delay, gas heating 90, 135, 180 or 225 seconds, cooling or heat pump 90 seconds.

(135 seconds only on some models)

10. Ignition-lockout will occur after four consecutive unsuccessful trials-for-ignition. Control will auto-reset

after three hours.

11. When used, auxiliary limit switch (ALS) is on some downflow models only. When used, FL is on

upflow models only.

12. Some models may have spade quick connect terminals.
13. Factory connected when LGPS is not used.
14. Factory connected when BVSS is not used. BVSS used when Chimney Adapter Accessory Kit is

installed.

15. Gas valve leads are interchangeable on single stage valves.

SW2

SW1

HUM

IDM

ILK

DSS

BVSS

PRS

ILK

NEUTRAL

IDM

(WHEN USED)

NOTE #14

NOT USED

FSE

BLU

PRS

DSS

BVSS

(WHEN USED)

NOTE #14

WHT

(NOT ON ALL MODELS)

NOTE #9

FRS1

FRS2

NOTE #12

ORN

ALS

(WHEN USED)

ORN

NOTE #11

LGPS

(WHEN USED)

NOTE #13

NOTE #14

NOTE #11

GVR-1

NOTE #14

ALS

(WHEN USED)

NOTE #13

LGPS

(WHEN USED)

NOTE #13

YEL

FRS1

FRS2

(WHEN USED) NOTE #11

GRN/YEL

GND

NOTE #5

GRN/YEL

NOTE #5

GRN/YEL

NOTE #15

Summary of Contents for INDUCED COMBUSTION 58YAV

Page 1: ...hen you see this symbol on the furnace and in instructions or manuals be alert to the potential for personal injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION ...

Page 2: ...nsult your local dealer as to proper frequency of maintenance and availability of a maintenance contract Never store anything on near or in contact with 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 com pounds plastic or plastic containers gasoline kerosene cigarette lighter fluid dry cleaning f...

Page 3: ...d not be dropped or bent as balance will be affected 8 If a greasy residue is present on blower wheel remove wheel from the blower housing and wash it with an appropriate degreaser To remove wheel a Mark blower wheel location on shaft before disassembly to ensure proper reassembly b Loosen setscrew holding blower wheel on motor shaft NOTE Mark blower mounting arms motor and blower housing so motor...

Page 4: ...itor See Fig 3 for correct ignitor location 9 Using field provided small wire brush steel spring cable reversible electric drill and vacuum cleaner clean cells as follows a Assemble wire brush and steel spring cable 1 Use 48 in of 1 4 in diameter high grade steel spring cable commonly known as drain clean out or Roto Rootert cable 2 Use 1 4 in diameter wire brush commonly known as 25 caliber rifle...

Page 5: ... must be maintained properly Refer to Fig 5 for field wiring information and to Fig 6 for furnace wiring information NOTE If the polarity is not correct the STATUS LED on the control will flash rapidly and prevent the furnace from heating The control system also requires an earth ground for proper operation of the control and flame sensing electrode The 24 v circuit contains an automotive type 3 a...

Page 6: ...C CONDUCTOR ON PCB FIELD WIRING TERMINAL FIELD GROUND EQUIPMENT GROUND FIELD SPLICE PLUG RECEPTACLE L1 L2 L1 BLWR HI LO TO 115VAC FIELD DISCONNECT NOTE 4 EQUIPMENT GROUND SPARE 2 HEAT SPARE 1 COOL NOTE 7 COM HSIR EAC 1 START OL COM HI MED HI MED LO LO BLWM SCHEMATIC DIAGRAM NATURAL GAS PROPANE EAC 2 1 1 HSI 2 PL5 2 PL2 3 PL3 PR2 115VAC PR1 TRAN 24VAC 1 2 IDR TEST TWIN FU1 NOTE 6 CAP L2 PL1 8 FSE 9...

Page 7: ...s and retrieval request is ignored 2 When above items have been completed the following will occur a LED flashes a status code 4 times Record this status code for further troubleshooting b Inducer motor starts and continues to run the entire component test c Hot surface ignitor is energized for 15 sec then de energized d Main blower operates at heating speed for 10 sec then turns off e Main blower...

Page 8: ...lame roll out switch requires manual reset Check for Defective blower motor or capacitor Dirty filter or restricted duct system Loose blower wheel Defective switch or connections Inadequate combustion air supply Flame Roll out Switch or fuse link open Open Flame Roll out Switch or fuse link Manual reset or replace IGNITION PROVING FAILURE Control will try three more times before lockout 14 occurs ...

Page 9: ...idly and test request will be ignored e Component Test will function as described in item 2 above f Check LED status g If LED status indicates proper operation RELEASE BLOWER ACCESS DOOR SWITCH replace blower access door and replace control access door WIRING DIAGRAMS Refer to Fig 5 6 and 7 for the 58YAV furnace wiring diagrams TROUBLESHOOTING Refer to service label See Fig 8 The Troubleshooting G...

Page 10: ...ill start and run for the entire component test The HSI blower motor heat speed and blower motor cool speed will run for 10 15 sec each Determine status code The status code is a 2 digit number with the first digit determined by the number of short flashes and the second digit by the number of long flashes Was there a previous fault code other than No 11 Does control respond to W Y or G 24 vac the...

Page 11: ...ed while gas valve was de energized Inducer will run until fault is cleared Check for Stuck open gas valve solenoid or leak Defective control center 23 PRESSURE SWITCH WILL NOT OPEN Check for Disconnected or obstructed pressure tubing Defective pressure switch 24 LOW VOLTAGE FUSE IS OPEN Check for Short in low voltage wiring including thermostat leads shorting to ductwork or furnace cabinet Discon...

Page 12: ...231 58yav3sm Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Tab 6a 8a PC 101 Catalog No 535 771 Printed in U S A Form 58YAV 3SM Pg 12 10 00 Replaces 58YAV 2SM ...

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Carrier INDUCED COMBUSTION 58YAV, Service And Maintenance Instructions

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