Carrier 58TMA operating instructions → -UnitWiring Diagram, A97508

13

LS

FRS2

NOTE #8

CONNECTION DIAGRAM

RED

LPS

GRY

HPS

HI

BRN

ORN

YEL

P

RED

RED

LGPS

BRN

GV

DSS

M

C

BLU

GRN

FRS1

#8

HSI

IDM

GRN

FUSED DISCONNECT

(WHEN USED)

ALS1

NOTE

GRN

ILK

SWITCH

(WHEN REQ’D)

JB

NOTE #1

BLK

(WHEN USED)

L1

RED

HEAT

RED

ORN ORNORN

NOTE #6

(WHENUSED)

WHTFSE

GRY

PL6

WHT

L2

WHT

FU2

SET-UP

SWITCH

1

2

SWITCH

BLK

WHT

GRN

GRN

1

2

NORM

ALS2

HI HT *

BLK

LO HT

1

2

3

PL3

ON OFF

ON OFF

YEL

WHT

BLK

BLOWER-

OFF DELAY

SWITCH

(SEC.)

3

4

WHT

BLK

RED

90 SEC

PL2

135 SEC

YEL

BLK

180 SEC *

2-STAGE

2 1

8 7

WHT

225 SEC

FURNACE

ON OFF

ON OFF

CONTROL

3

9

BLK

FACTORY SETTINGS

BRN

GRY

PR1

PR2

WHT

L1

L2

CAP

WHT

BLK

ORN

COMMON

*

NOTE #4

BRN

BRN

RED

HI-COOL

BLOWER-OFF DELAY

COM

WHT

TRAN

23 4

RED

BLU

GRN

BLOWER-OFF DELAY

HI-GAS

EAC-2

HI

BLK

LOW-HEAT ONLY

1

HIGH-HEAT ONLY

P1

HEAT

MED HI

YEL

LO-GAS

MED

ON OFF

EAC-1

NOTE #15

ORN

TWIN

1

11 10

HEAT

MED LO

BLU

RED

BLU

TEST

TJ2

SPARE SPARE

LO

BLWM

M

RED

3

12

SEC1

RED

W2 Com W/W1

Y/Y2 R

G HUM

LED

S

SEC2

FU1

LEGEND

24V

BLU

TO 115VAC FIELD DISCONNECT SWITCH		SCHEMATIC DIAGRAM (NATURAL GAS & PROPANE)
ILK	EQUIPMENT GROUND	NOTE #1

				BHI / LOR	LO-GAS-HEAT						L2
								LO
						MED LO					BLWM
		BHT / CLR			HI-GAS-HEAT
L1						NOTE #15
BLWR					SPARE	MED		HI COM
			HI-COOL		SPARE	MED HI		NOTE #4		BRN	BRN
				COMMON
HSIR	EAC-1		EAC-2							CAP
						PL2	3	PL6	1	HSI
									2
		IHI / LOR					9
										LO
IDR							4	PL3	2	HI
									1
							7		3	COM	IDM
	PR1			PR2			8
		115VAC
FU1	SEC1		TRAN	SEC2			1
			24VAC			HPSR		N/A
NOTE #5							5
							6	N/A
							2
							12 N/A			FRS2
HUM				MGVR-2			2	FRS1
											LS
							3 (WHEN USED)
R							9		ALS2	ALS1
TWIN
			TWINNING				6
TEST
SLAVE			JUMPER			PL1				DSS
			TJ

W/W1	MASTER		NOTE #8 LPS
		5	(WHEN USED)
			LGPS

ALS1	AUXILIARY LIMIT SWITCH, OVERTEMP. MANUAL RESET, SPST (N.C.)
ALS2	AUXILIARY LIMIT SWITCH, OVERTEMP. AUTO RESET, SPST (N.C.)
BHI / LOR	BLOWER MOTOR SPEED CHANGE RELAY, SPDT
BHT / CLR	BLOWER MOTOR SPEED CHANGE RELAY, SPDT
BLWM	BLOWER MOTOR, 4 or 5 -SPEED, PERMANENT-SPLIT-CAPACITOR
BLWR	BLOWER MOTOR RELAY, SPST (N.O.)
CAP	CAPACITOR
CPU	MICROPROCESSOR AND CIRCUITRY
DSS	DRAFT SAFEGUARD SWITCH (N.C.)
EAC-1	ELECTRONIC AIR CLEANER CONNECTION (115 VAC, 1 AMP MAX.)
EAC-2	ELECTRONIC AIR CLEANER CONNECTION (COMMON)
FRS1	FLAME ROLLOUT SWITCH OVERTEMP. MANUAL RESET, SPST (N.C.)
FRS2	FLAME ROLLOUT SWITCH OVERTEMP. MANUAL RESET, SPST (N.C.)
FSE	FLAME-PROVING SENSOR ELECTRODE
FU1	FUSE, 3 AMP, AUTOMOTIVE BLADE TYPE, FACTORY INSTALLED
FU2	FUSE, FIELD INSTALLED
GV	GAS VALVE, REDUNDANT LOW-HEAT OPERATORS, 2-STAGE
HPS	HIGH-HEAT PRESSURE SWITCH, SPST (N.O.)
HPSR	HIGH-HEAT PRESSURE SWITCH RELAY, SPST (N.C.)
HSI	HOT-SURFACE IGNITER (115 VAC)
HSIR	HOT-SURFACE IGNITOR RELAY, SPST (N.O.)
HUM	24VAC HUMIDIFIER CONNECTION (0.5 AMP. MAX.)
IDM	INDUCED DRAFT MOTOR, 2-SPEED, SHADED-POLE
IDR	INDUCER MOTOR RELAY, SPST (N.O.)
IHI / LOR	INDUCER MOTOR SPEED CHANGE RELAY, SPDT
ILK	BLOWER DOOR INTERLOCK SWITCH, SPST (N.O.)
JB	JUNCTION BOX
LED	LIGHT-EMITTING DIODE FOR STATUS CODES
LGPS	LOW GAS-PRESSURE SWITCH, SPST (N.O.)
LPS	LOW-HEAT PRESSURE SWITCH, SPST (N.O.)
LS	LIMIT SWITCH, OVERTEMPERATURE-AUTO RESET, SPST (N.C.)

MGVR	MAIN GAS VALVE RELAY, DPST (N.O.)
	-1 = VALVE	-2 = HUMIDIFIER
PL1	12-CIRCUIT CONNECTOR
PL2	9-CIRCUIT CONNECTOR
PL3	3-CIRCUIT IDM CONNECTOR
PL6	2-CIRCUIT HSI CONNECTOR
SW1	HIGH-HEAT-ONLY SWITCH, SPST (MANUAL)*
SW2	LOW-HAT-ONLY SWITCH, SPST (MANUAL)*
SW3 & 4	BLOWER-OFF DELAY SETTING SWITCHES,
	SPST (MANUAL)*
TJ	TWINNING JUMPER, SPDT FOR MASTER OR
	SLAVE STATUS (MANUAL CHANGE OVER)
TRAN	TRANSFORMER-115VAC/24VAC
TWIN/TEST	1-CIRCUIT TWINNING BUSS CONNECTOR,

ALSO STATUS CODE RECALL

JUNCTION

TERMINAL

CONTROL TERMINAL

FACTORY POWER WIRING (115VAC)

FACTORY CONTROL WIRING (24VAC)

FIELD POWER WIRING (115VAC)

FIELD CONTROL WIRING (24VAC)

CONDUCTOR ON CONTROL

FIELD WIRING SCREW TERMINAL

FIELD GROUND

EQUIPMENT GROUND

FIELD SPLICE

PLUG RECEPTACLE

	SW1				NOTE #8
	W2	CPU		4		HPS
		MGVR-1		1	M	P	HI
	Y/Y2			10	C	GV
	G				NOTE#7
				7	N/A	FSE
				8
	COM			11 N/A
NOTES:		SW4 SW3 SW2	9.	Symbols are an electrical representation only.
1.	Use only copper wire between the disconnect switch and the unit.
2.	If any of the original wire, as supplied, must be replaced, use the		10.	BLOWER-ON DELAY: Gas heating 45 seconds,
	same or equivalent type wire.			Cooling/Heat Pump 2 seconds.
3.	Inducer (IDM) and blower (BLWM) motors contain internal auto-reset		11.	Cooling/Heat Pump BLOWER-OFF DELAY is 90
	thermal overload switches.			seconds.
4.	Blower motor speed selections are for average conditions. See
			12.	IGNITION-LOCKOUT will occur after four consecutive
	Installation Instructions for details on optimum speed selection.
				unsuccessful trials-for-ignition. Control will automatically
5.	Replace only with a 3-AMP fuse.
				reset after three hours.
6.	Auxiliary limit switches (ALS1 & 2) used on some horizontal and		13.
7.	some downflow models.			Control must be grounded at pin 10 of 12-pin connector.
	This wire must be connected to furnace sheet metal for		14.	NA - Not Applicable
	control to prove flame.		15.	Spare terminal and wire not available on some
8.	Factory connected when LGPS not used.			applications. Insulate connector if not available.

COMPONENT TEST

To initiate the component test sequence with no thermostat inputs and with all inducer Post-Purge and Blower-Off Delay periods completed, short the "TWIN/TEST" terminal to the "COM" terminal for about two seconds. The control will

turn ON the inducer motor Low-Speed, inducer motor High-Speed, HSI, blower motor Low-Gas-Heat Speed, blower motor High-Gas-Heat Speed, and blower motor High-Cool Speed for 7-15 seconds each. Neither the gas valve nor the humidifier will be

turned ON. 324459-101 REV. A

A97508

→Fig. 18—Unit Wiring Diagram