Carrier IDEALCOMFORT 58MVC Service And Maintenance Procedures Manual Download

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24-V THERMOSTAT

TERMINALS

PL2 – HOT SURFACE

IGNITER & INDUCER

MOTOR CONNECTOR

115-VAC (L2) NEUTRAL

CONNECTIONS

115-VAC (L1) LINE

VOLTAGE CONNECTIONS

EAC-1 TERMINAL

(115 -VAC 1.0 AMP MAX.)

PL1 – LOW VOLTAGE MAIN

HARNESS CONNECTOR

PL3 – ECM BLOWER

HARNESS

CONNECTOR

TRANSFORMER 24-VAC

CONNECTIONS

3-AMP FUSE

STATUS AND COMM

LED LIGHTS

SW1 SETUP

SWITCHES AND

BLOWER OFF-

DELAY

MODEL PLUG

CONNECTOR

AIR CONDITIONING

(A/C) AIRFLOW

SETUP SWITCHES

USER INTERFACE

OR ADVANCED

PRODUCT

MONITOR

CONNECTOR

CONTINUOUS FAN

(CF) AIRFLOW

SETUP SWITCHES

OAT

CONNECTOR

HUMIDIFIER

TERMINAL (24-VAC

0.5 AMP MAX.

ACRDJ – AIR

CONDITIONING

RELAY DISABLE

JUMPER

FLASH

UPGRADE

CONNECTOR

(FACTORY

ONLY)

SW4 SETUP

SWITCHES

BOARD SERIAL

NUMBER

EXAMPLE:

V12 HK42FZ022 3407

SOFTWARE

VERSION

NUMBER

DATE

CODE

PART

NUMBER

A07422

Fig. 16 -- Variable Capacity Furnace Control

58MV

Summary of Contents for IDEALCOMFORT 58MVC

Page 1: ...ED ISO 9001 2000 SAFETY CONSIDERATIONS Recognize safety information This is the safety alert symbol When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING CAUTION and NOTE These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe perso...

Page 2: ...ARGING YOUR BODY S ELECTROSTATIC CHARGE TO GROUND 2 Firmly touch a clean unpainted metal surface of the furnace chassis which is close to the control Tools held in a person s hand during grounding will be satisfactorily discharged 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 ex...

Page 3: ...washable filter clean filter by spraying cold tap water through filter in opposite direction of airflow Rinse filter and let dry Oiling or coating of the filter is not recommended 5 If equipped with factory specified disposable media filter replace only with a factory specified media filter of the same size FILTER RETAINER WASHABLE FILTER IN FURNACE WASHABLE FILTER OR DISPOSABLE MEDIA FILTER IN FI...

Page 4: ...clips on blower wheel vanes Do not bend wheel or blades as balance will be affected 8 If 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 and ...

Page 5: ...ube from gas valve regulator fitting 7 Unplug igniter from harness 8 Remove igniter leads from slot in manifold grommet 9 Remove screws that secure manifold to burner box See Fig 6 NOTE Do not remove burner box from cell panel 10 Remove manifold orifices and gas valve as 1 assembly 11 Remove screws attaching burner assembly in burner box NOTE Use care when removing and reinstalling burners not to ...

Page 6: ...T BE PLACED IN THIS SLOT A05074 Fig 7 Igniter Wire Placement PRIMARY HX INLET OPENINGS A96305 Fig 8 Cleaning Inlet Openings of Primary Heat Exchangers PAM RTV A93087 Fig 9 Combustion air Intake Housing Gasket Repair 58MVC ...

Page 7: ...lure to follow this warning could result in personal injury death or property damage Gas valve switch MUST be facing forward or tilted slightly WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury or death or property damage Never test for gas leaks with an open flame Use a commercially available soap solution made specifically for the detection of leaks ...

Page 8: ...ion air intake housing If foamed gasket was removed check for any damage If gasket is damaged in any way it must be repaired To repair remove damaged gasket section apply sealant releasing agent such as PAM cooking spray or equivalent must not contain corn nor canola oil halogenated hydrocarbons nor aromatic content to prevent inadequate seal from occurring to burner box and apply a small bead of ...

Page 9: ...ccur If leaks are found correct the problem 15 Check for gas leaks 16 Replace main furnace door RTV PAM A93081 Fig 12 Gasket on Collector Box FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in personal injury death or property damage Never test for gas leaks with an open flame Use a commercially available soap solution made specifically for the detection of leaks to check all...

Page 10: ...ensor The 24 v circuit contains an automotive type 3 amp fuse located on the furnace control See Fig 16 Any direct shorts of the 24 v wiring during installation service or maintenance will cause this fuse to blow If fuse replacement is required use ONLY a fuse of identical size The furnace control LED will flash status code 24 when fuse needs to be replaced With power to the unit disconnected chec...

Page 11: ...e condensate enters open drain See Fig 19 UNIT DAMAGE HAZARD Failure of plastic components may occur Do not use ethylene glycol Prestone II antifreeze coolant or equivalent automotive type CAUTION 6 Replace drain connection cap and clamp to inducer housing 7 Replace main furnace door 8 Propylene glycol need not be removed before restarting furnace WIRING DIAGRAMS See Fig 15 16 and 21 for the Delux...

Page 12: ...e through 1 heat cycle to check for proper operation and check LED status j If furnace is operating properly and LEDs indicateproper operation replace main furnace door 3 The control can also assist in troubleshooting by performing a Component Test The Component Test will functionally operate all furnace components except the gas valve NOTE The component test feature will not operate if the furnac...

Page 13: ... LED LIGHTS SW1 SETUP SWITCHES AND BLOWER OFF DELAY MODEL PLUG CONNECTOR AIR CONDITIONING A C AIRFLOW SETUP SWITCHES USER INTERFACE OR ADVANCED PRODUCT MONITOR CONNECTOR CONTINUOUS FAN CF AIRFLOW SETUP SWITCHES OAT CONNECTOR HUMIDIFIER TERMINAL 24 VAC 0 5 AMP MAX ACRDJ AIR CONDITIONING RELAY DISABLE JUMPER FLASH UPGRADE CONNECTOR FACTORY ONLY SW4 SETUP SWITCHES BOARD SERIAL NUMBER EXAMPLE V12 HK42...

Page 14: ...F MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED A93058 Fig 17 Freeze Protection A99118 Fig 18 Inducer Housing Drain Tube A99119 Fig 19 Funnel in Drain Tube and Antifreeze Running Through Trap 58MVC ...

Page 15: ...15 A07564 Fig 20 Service Label 58MVC ...

Page 16: ...16 A06677 Fig 21 Wiring Diagram 58MVC ...

Page 17: ...switch SW1 1 in the ON position and jumpering R W W1 and Y Y2 simultaneously setup switch SW1 1 in the OFF position Was there a previous status code other than 11 Go to section below for the status code Does the control respond to W W1 W2 Y1 Y Y2 and G 24V thermostat signals Run system through a low heat medium heat high heat or cooling cycle to check operation Status codes are erased after 72 hou...

Page 18: ...l is lost during the blower on delay period blower will come on for the selected blower off delay Check the following items first before proceeding to the next step Gas valve turned off Manual shut off valve Green Yellow wire MUST be connected to furnace sheet metal Flame sensor must not be grounded To determine whether the problem is in the gas valve igniter or flame sensor the system can be oper...

Page 19: ...en wire or bad terminal on either the RED or GREEN wire between the furnace control and the blower motor YES Is there 5 VDC at PL13 2 YELLOW and PL13 4 GREEN Is there 5 VDC at PL3 3 YELLOW and PL3 2 GREEN NO NO You have an open wire or bad terminal on the YELLOW wire between the furnace control and the blower motor YES YES The voltage just measured should be very stable and should not fluctuate mo...

Page 20: ...panion book Classroom ServiceTraining plus hands on the products in our labs can mean increased confidence that really pays dividends in faster troubleshooting fewer callbacks Course descriptions and schedules are in our catalog CALL FOR FREE CATALOG 1 800 644 5544 Packaged Service Training Classroom Service Training Copyright 2007 Carrier Corp S 7310 W Morris St S Indianapolis IN 46231 Manufactur...

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