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78

Diagnostics

FIGURE 47 (cont.)

DIAGNOSTICS FLOWCHART

ST-A1194-66-00

Check

 

to

 

make

 

sure

 

test

 

mode

 

dip

 

switches

 

are

 

proper

l

y

 

set

.

-

 

Check

 

a

ll 

connections

 

between

 

IFC

 

and

 

ECM

 

motor

.

-

 

Check

 

24V

 

to

 

ECM

 

Motor

. 

(

l

ow

 

vo

l

tage

 

connector,

 

pins

 

1

 

&

 

4)

-

 

Check

 

P

.

F

.

C

. 

Choke

. 

(except

 

1/2

 H

P

 

motors)

-

 

Check

 

a

ll 

wiring

 

and

 

connections

 

to

 

P

.

F

.

C

. 

choke

.

-

 

Check

 

fau

l

t

 

code

 

disp

l

ay

 

and

 

see

 

“fau

l

t

 

codes”

 

In

 

I

 

&

 

O

.

Does

 

I

. 

B

. 

M

. 

energize

 

at

 H

igh

 

speed

?

After

 

B

l

ower

 

on

 

de

l

ay,

 

Does

 

IDM

 

switch

 

to

 H

igh

 

speed

 

and

 

remain

 

at

 l

ow

 

speed

 

after

 

switching

?

Does

 

furnace

 

continue

 

to

 

operate

 

at

 

high

 

fire

 

unti

l 

T-stat

 

satisfied

 

or

 

heat

 

ca

ll 

removed

?

Ensure

 

T-stat

 

not

 

switching

 

to

 l

ow

 

fire

 

or

 

test

 

mode

 

not

 

timing

 

out

 

(1

 

hour

  l

imit)

Fau

l

t

 

code

 

disp

l

ayed

?

See

 

FAULT

 

CODES

 

under

 

troube

l

shooting

 

in

 

the

 

I

 

&

 

O

 

Manua

l

Does

 

IDM

 

Shut

 

off

 

after

 

post

 

purge

?

Does

 

I

. 

B

. 

M

. 

shut

 

off

 

after

 

90

 

seconds

? 

(p

l

us

 

s

l

ew)

Doub

l

e

 

check

 

-

 

is

 

heat

 

ca

ll 

comp

l

ete

l

y

 

off

 

at

 

IFC

?

**

 

System

 

wi

ll 

attempt

 

to

 l

ight

 

4

 

times

. 

Vo

l

tage

 

Is

 

present

 

at

 

gas

 

va

l

ve

 

for

 

on

l

y

 

7

 

seconds

 

during

 

each

 

ignition

 

tria

l. 

System

 

wi

ll 

enter

 

a

 

1

 

hour

 

l

ockout

 

after

 

4

 

attempts

. 

Remove

 

heat

 

ca

ll 

by

 

setting

 

T-stat

 

be

l

ow

 

room

 

temp

.

Remove

 

power

 

to

 

furnace,

 

open

 

b

l

ower

 

compartment

 

and

 

restore

 

dip

 

switches

 

to

 

origina

l 

settings

. 

Rep

l

ace

 

b

l

ower

 

door

. 

Restore

 

power

 

to

 

unit

.

-

 

Check

 

wire

 

and

 

a

ll 

connections

 

between

 

I

.

F

.

C

.

and

 

I

.

D

.

M

-

 

Check

 

for

 

115

 

VAC

 

on

 

P3-1

 

&

 

P3-3

.

-

 

Check

 

I

.

D

.

M

. 

capacitor

.

-

 

Check

 

I

.

D

.

M

. l

ow

 

speed

. 

Rep

l

ace

 

if

 

neccessary

. 

C

PROBLEM PERSISTS

REPEAT THIS SEQUENCE UNTIL TROUBLE- FREE OPERATION

STEADY

 

HIGH

 

HEAT

Low

Содержание 802V SERIES

Страница 1: ...ERIES 80MDV UPFLOW HORIZONTAL SERIES U L and or C S A recognized fuel gas and CO carbon monoxide detectors are rec ommended in all applications and their installation should be in accordance with the...

Страница 2: ...perature Sensors 30 11 HIGH ALTITUDE 32 Natural Gas at High Altitudes 32 Orifice Ordering Information 32 LP Gas at High Altitudes 34 12 STARTUP PROCEDURES 35 To Start Furnace 35 To Shut Down Furnace 3...

Страница 3: ...n If the model number is correct open the carton and verify that the furnace rating label specifies the same furnace model number that is speci fied on the carton label If the model numbers do not mat...

Страница 4: ...ition National Electrical Code NFPA90A Installation of Air Conditioning and Ventilating Sys tems NFPA90B Installation of warm air heating and air conditioning systems The equipment has been evaluated...

Страница 5: ...erature rise in heat record air temperature rise ______ Air temperature rise in cool record air temperature rise VENTING ______ Correct vent pipe diameter and length according to NFGC tables _________...

Страница 6: ...NPUT RATE IF THE FURNACE IS A MULTI STAGE FURNACE WARNING USE ONLY WITH THE TYPE OF GAS APPROVED FOR THIS FURNACE REFER TO THE FURNACE RATING PLATE WARNING NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME...

Страница 7: ...ATED IN GARAGES OR OFF GARAGE STORAGE AREAS ALL JOINTS SEAMS AND OPENINGS IN THE EQUIPMENT AND DUCT MUST BE SEALED TO LIMIT THE MIGRATION OF TOXIC FUMES AND ODORS IN CLUDING CARBON MONOXIDE FROM MIGRA...

Страница 8: ...SITE SELECTION 1 Select a site in the building near the center of the pro posed or existing duct system 2 Give consideration to the vent system piping when se lecting the furnace location Be sure the...

Страница 9: ...PLACEMENT OF COMBUSTIBLE MATERIALS ON AGAINST OR AROUND THE FURNACE JACKET CAN CAUSE AN EXPLOSION OR FIRE RESULTING IN PROP ERTY DAMAGE PERSONAL INJURY OR DEATH THE HOMEOWNER SHOULD BE CAUTIONED THAT...

Страница 10: ...0 WITH TYPE B VENT MAY BE 1 WITH TYPE B VENT LEFT SIDE REDUCED CLEARANCE IN SHIP WGTS FIGURE 4 UPFLOW HORIZONTAL DIMENSIONS Location ST A1220 04 REDUCED CLEARANCE IN Input A B C D E F Left Right Back...

Страница 11: ...Where the maximum airflow is 1800 CFM or more BOTH sides or the bottom must be used for the return air Do not take return air from the back of the unit NOTE DO NOT take return air from furnace rooms g...

Страница 12: ...M FLANGES OF CABINET BEFORE THE UNIT IS INSTALLED LIFT UP PULL OUT 1 REMOVE 2 SCREWS LIFT BASE UP SLIDE FORWARD TO REMOVE 2 INSTALLATION IS REVERSE OF REMOVAL VERIFY REAR FLANGE IS SEALED PROPERLY AS...

Страница 13: ...ustion gases from an adjacent fuel burning appliance NOTE Do not block furnace access with support rods Main tain clearances recommended in Figure 8 Allow enough space for proper service maintenance o...

Страница 14: ...r each 1 000 BTUH of the total input of all appliances in the space If the open space contain ing the appliances is in a building with tight construction contem porary construction outside air may sti...

Страница 15: ...e inch of free area for each 1 000 BTUH of total input in the space Table 2 shows some typical examples of openings required for com bustion air openings required for a confined space B USING OUTDOOR...

Страница 16: ...EACH OPENING WHEN TWO OPENINGS ARE USED WITH A FURNACE 1 LOCATED IN A CONFINED SPACE 2 USING OUTDOOR AIR FOR COMBUSTION 3 COMMUNICATING DIRECTLY TO THE 3 OUTSIDE THROUGH AN OPENING OR 3 THROUGH A VERT...

Страница 17: ...S IS NOT A REQUIREMENT SEE PREVIOUS PAGE SINGLE ELBOW IS ALLOWED BUT MAY NOT PREVENT DEBRIS FROM BEING DROPPED INTO THE FURNACE GROUND OR SHELF SURFACE 6 MIN 6 MININUM CLEARANCE PVC DOUBLE ELBOW 8 SCR...

Страница 18: ...attic must be ventilated by gable or soffit vents COMBUSTION AIR FROM ATTIC If attic combustion air is used the inlet air opening at the furnace must be protected from accidental blockage Install a 9...

Страница 19: ...d lined masonry chimneys Follow the National Fuel Gas Code ANSI Z223 1 NOTE Follow combustion air instructions as outlined in this man ual Single wall vent connectors to B 1 vent or masonry chimneys m...

Страница 20: ...equipped appli ances shall not be greater than 75 percent of the vertical height of the vent Single appliance venting of a fan assisted furnace into a tile lined masonry chimney is prohibited The chi...

Страница 21: ...R cont FIGURE 18 DEDICATED VENTING THROUGH CHIMNEY WITH B 1 VENT Combustion Air FIGURE 17 FRESH AIR INLET ST A1220 09 01 1 STANDARD 3 FLUE CONNECTION 2 4 ADAPTER OPTIONAL SEE NATIONAL FUEL GAS CODE FO...

Страница 22: ...sed openings in the com mon venting system NOTE Ensure existing venting system complies with latest addi tion of National Fuel Gas Code ANSI Z223 1 and all local codes regulations 1 Visually inspect t...

Страница 23: ...OR PROPANE GAS IS HEAVIER THAN AIR AND TENDS TO COLLECT AT LOWER LEVELS MAKING IT MORE DIFFICULT TO SMELL AT NOSE LEVEL NATURAL GAS IS LIGHTER THAN AIR AND WILL RISE POSSIBLY ACCUMULATING IN HIGHER PO...

Страница 24: ...3 feet to easily remove the control valve assembly Install a manual shut off valve in the gas line outside the furnace cas ing The valve should be readily accessible to turn the gas supply on or off I...

Страница 25: ...LED HIGH ALTITUDE INSTALLATIONS OF THIS BOOK FOR INSTRUCTIONS WARNING NEVER PURGE A GAS LINE INTO THE COMBUS TION CHAMBER NEVER USE MATCHES FLAME OR ANY IGNITION SOURCE FOR CHECKING LEAK AGE FAILURE T...

Страница 26: ...7 With LP gas have the LP supplier adjust the line pressure at the regulator MANIFOLD GAS PRESSURE MEASUREMENT Natural gas manifold pressure should be 3 5 3 w c for high fire and 1 8 1 w c for low fir...

Страница 27: ...r and the gas supply to the furnace 2 Remove the burner door from the furnace 3 Remove the burner assembly handle with care 4 Remove the two screws attaching the NOx insert retainer bracket to the cen...

Страница 28: ...ng steps should be taken 1 The furnace must NOT be electrically connected to line volt age prior to reversing the electrical connection 2 Disconnect the wires from the door switch 3 Remove the junctio...

Страница 29: ...ble with the integrated furnace control The low voltage wiring should be sized as shown NOTE Do not use 24 volt control wiring smaller than No 18 AWG Install the room thermostat in accordance with the...

Страница 30: ...ovided with the furnace but one must be field supplied and installed It is recommended to replace the furnace filter periodically to maintain optimum furnace performance RXGW B01 CHIMNEY ADAPTER IMPOR...

Страница 31: ...HE FURNCE AT THE LOCATIONS PROVIDED CUT OUT USING EMBOSSED ANGLES AS A GUIDE FOR PROPER SIZE 23 X 14 ST A1220 07 00 RXGF CB 6625 7 5 5 FIELD SUPPLIED FILTER ST A1220 06 X0 FIGURE 26 FILTER LOCATIONS A...

Страница 32: ...81ft3 I Sea Level input per burner 25000 H Sea Level Heating Value 1050 Q 23 81 ft3 Natural Gas per hour From Table F 1 of Natural Fuel Gas Code Handbook 2002 3 5 w c column Orifice required at Sea Le...

Страница 33: ...nly with 25 000BTU Burner DO NOT USE THIS CHART FOR ANY 90 FURNACE MODEL NATURAL GAS ORIFICE SELECTION BASED ON HEATING VALUE ELEVATION Table is derived from Appendix of the National Fuel Gas Code To...

Страница 34: ...e LP orifices are based on an 11 of water column pressure at the orifice which dif fers from products that use 10 of water column at the orifice This difference requires a deviation from the NFGC orif...

Страница 35: ...rners by turning the gas con trol to the OFF position SEQUENCE OF OPERATION HONEYWELL CONTROLS Integrated Controls with Direct Spark Ignition 1 Each time the thermostat W Heating contacts close legacy...

Страница 36: ...Y CARD CONNECTOR S1 S2 S3 DIP SWITCH BANKS P4 CIRCULATION BLOWER COMMUNICATIONS CONNECTION HUMIDIFIER RELAY OUT DRY CONTACTS ELECTRONIC AIR CLEANER OUTPUT NEUTRAL FOR ELECTRONIC AIR CLEANER OUTPUT NEU...

Страница 37: ...0 amp at 115 VAC This output is energized any time the blower motor is above the airflow CFM values specified below Airflow below this value is not considered to be enough for a typical electronic ai...

Страница 38: ...r operation during heating refer to Figure 29 and make sure to install the jumper between the thermostat ter minals labeled R and HUM STAT A sepa rate humidistat is not required for this configuration...

Страница 39: ...TROL Communicating Furnace FIELD INSTALLED JUMPER FROM R TO HUM STAT TERMINALS OPTION A DO NOT INSTALL JUMPER THERMOSTAT CONTROLS HUM DEHUMIDIFIER B INSTALL JUMPER ACTIVATES HUM ON HEAT CALL DOES NOT...

Страница 40: ...hes that must be penetrated to change the dipswitch position Use a pen or similar tool to penetrate the cover and change the position This is normal and penetration of the protective cover will not da...

Страница 41: ...ow is 75 of full airflow with switch 9 in the OFF position If Switch 9 is in the ON position low airflow is 50 of full airflow 1200 1000 800 600 2000 1600 1400 1200 Switch 9 1st Stage Compressor Airfl...

Страница 42: ...irflow HP Blower S1 4 S1 5 50 75 BTU HP Blower 17 Cabinet R802VA075417 100 125 OFF OFF 900 CFM 1200 CFM 1500 CFM Factory Setting ON OFF 750 CFM 1050 CFM 1200 CFM OFF ON 600 CFM 900 CFM 1050 CFM ON ON...

Страница 43: ...adjust ment in legacy mode Each selection will use a dif ferent airflow demand for first stage gas heat The selections are set to approximate a specified tem perature rise as follows Note Temperature...

Страница 44: ...are con sidered normal some operational codes are displayed simultaneously with low level faults which do not inter rupt operation see paragraphs below for details Since usually only one fault can be...

Страница 45: ...ribed above A D 4 When both the low pressure switch and high pres sure switch are closed and both should be open as in during the pressure switch proving period In this case fault codes 44 and 55 will...

Страница 46: ...play when two or more faults are present simultaneously Circuit Open P41 P42 should be filtered 30 93 d1 68 61 26 58 14 33 23 22 10 44 45 46 55 57 11 13 66 60 12 H h C c cd Cd hP HP dF F 82 84 81 d4 d...

Страница 47: ...instead of adding the new fault to the buffer the previous fault and level are replaced with the new fault and level The time stamp will also be updated This way the existing fault will be updated bu...

Страница 48: ...on that the fault buffer is clear the IFC will flash segments A and D of the right most seven segment displays one sec ond on and one second off three times after the fault clear command has been reco...

Страница 49: ...esistance and a valid thermistor value was sensed on the same power cycle a fault 82 is to be displayed on the seven segment displays If the resistance between the outdoor air terminals OAT is determi...

Страница 50: ...be labeled Aux 1 and Aux 2 The switch inputs are for communicating systems only One or both inputs can be configured at the communicating thermostat as either normally opened or normally closed conta...

Страница 51: ...is application 3 If the thermostat wiring will be located near or in paral lel with high voltage wiring cable TV Ethernet wiring or radio frequency equipment then shielded thermo stat wire can be used...

Страница 52: ...ING FURNACE AND THERMOSTAT ST A1194 54 03 Integrated Furnace Control INTEGRATED FURNACE CONTROL Figure 36 is the wiring diagram for connecting the furnace to an approved EcoNet communicating thermosta...

Страница 53: ...ER BETWEEN Y1 AND Y2 IS REQUIRED SINGLE STAGE THERMOSTAT NON COMMUNICATING TWO STAGE MODULATING GAS FURNACE CONTROL CONDENSER UNIT FIGURE 38 WIRING DIAGRAM FOR A LEGACY SINGLE STAGE THERMOSTAT WITH AU...

Страница 54: ...R C HUM STAT W1 W2 G Y1 Y2 B TWO STAGE THERMOSTAT NON COMMUNICATING TWO STAGE MODULATING GAS FURNACE CONTROL CONDENSER UNIT FIGURE 39 WIRING DIAGRAM FOR A LEGACY TWO STAGE THERMOSTAT ST A1194 62 04 T...

Страница 55: ...R NON COMMUNICATING OUTDOOR UNIT E1 E2 R C D Y1 B R C Y2 SA1 SA2 OAT1 OAT2 S1 S2 S3 HUM HUM EAC L1 NEUTRAL 1 2 R C HUM STAT W1 W2 G Y1 Y2 B O SA1 SA2 OAT1 OAT2 S1 S2 S3 HUM HUM EAC L1 NEUTRAL 1 2 R C...

Страница 56: ...JUMPER BETWEEN Y1 AND Y2 IS REQUIRED SINGLE STAGE THERMOSTAT NON COMMUNICATING TWO STAGE MODULATING GAS FURNACE CONTROL OUTDOOR UNIT FIGURE 41 WIRING DIAGRAM FOR A LEGACY SINGLE STAGE THERMOSTAT WITH...

Страница 57: ...former Terminals are quick connect style 20 FUSE P100 P101 A fuse is provided to protect low voltage 24VAC circuits from shorts between 24VAC and Ground or Common A fault code 30 is displayed at the f...

Страница 58: ...eplace the regulator cap securely Any necessary major changes in the gas flow rate should be made by changing the size of the burner orifices To change orifice spuds shut off the manual gas valve and...

Страница 59: ...ce size may need to be changed to adjust the furnace to its nameplate input Consult the local gas utility to obtain the yearly average heating value and orifice size required to fire each individual b...

Страница 60: ...PROPERLY APPLYING THE APPROPRIATE INDUSTRY AC CEPTED STANDARD IF LESS THAN MINIMUM STAN DARDS ARE APPLIED THE EQUIPMENT USER COULD EXPECT TO EXPERIENCE HIGHER UTILITY BILLS MAJOR COMPONENT FAILURE VAR...

Страница 61: ...pplier should be called to diagnose and or correct the source of tripping If this unit is mounted in a closet the door must be closed when making this check PRESSURE SWITCH This furnace is equipped wi...

Страница 62: ...g across and through it to keep from overheating CAUTION DO NOT OPERATE THE SYSTEM WITHOUT FILTERS A PORTION OF THE DUST ENTRAINED IN THE AIR MAY TEMPORARILY LODGE IN THE AIR DUCT RUNS AND AT THE SUPP...

Страница 63: ...re legibility Attach a replacement marking which can be obtained through the distributor if any are found to be illegible or missing REPLACEMENT PARTS Please visit www myrheem com myruud com for repla...

Страница 64: ...icates that there is a both cooling and dehumidication demand present at the same time When de humidification is active the cooling airflow will be reduced in order to allow water to accumulate on the...

Страница 65: ...ace should operate in any mode d4 NO VALID MODEL DATA ON MEMORY CARD DESCRIPTION The memory card inserted into the slot at position P6 of the furnace control is corrupt and can not be used OR there is...

Страница 66: ...ner after the first or even second failure However it will be displayed in the active fault screen of thermostat immediately after the first failure and all subsequent failures during a single heat ca...

Страница 67: ...purge After both the post purge and blower off delay are complete the fault code 13 is removed and a new attempt at ignition is made Often the new ignition attempt will fail and operation will proceed...

Страница 68: ...68 Diagnostics TABLE 13 continued 802V FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS...

Страница 69: ...eck that all gaskets between the inducer and center panel heat exchanger are properly installed and sealed 3 Unstable flame pattern CAUSE 2 Loose or faulty wiring SOLUTION 1 Replace low pressure contr...

Страница 70: ...board inducer relay 5 Loose or faulty wiring 6 Disconnected blocked split or cut pressure switch hoses 45 EXPECTED OPERATION 1 DISPLAYED BEFORE HEAT IS ESTABLISHED The IBM Indoor Blower Motor will no...

Страница 71: ...ce hoses as necessary 8 Insure proper termination and determine if high altitude kit may be necessary see item 4 2 Check the specification sheets and or installation instructions Remove excess venting...

Страница 72: ...s normal with no perceivable difference in operation DESCRIPTION A blower fault which is non critical allows the blower to continue to run but at less than optimal conditions 6 Replace the motor 4 Wir...

Страница 73: ...ulty or corrupted 99 REMOTE FAULTS RESET PERFORMED This is a notification that fault codes in the fault buffer have been reset NO BLOWER COMMUNICATIONS STATUS This is a critical fault The furnace will...

Страница 74: ...xpectedly on the gas valve con tacts welded relay and will not clear by cycling the inducer Fault code 93 is set and displayed This lockout condition cannot be reset by cycling the heat call 3 The fur...

Страница 75: ...pins of the connector are fully seated in the housing to en sure good contact with the connection at the motor When voltage is confirmed at these pins replace the connector on the motor B Remove the m...

Страница 76: ...erheating the fault code 61 will be dis played Internal overloading may reset once the condition causing the problem has been removed However it is likely that the motor will need to be re placed A Is...

Страница 77: ...in I O if present Check line voltage to motor 115VAC Does ECM blower start on Low heat speed 15 20 seconds after burners light Note IFC SSD s will display 22 or 33 Note If good flame is not sensed a...

Страница 78: ...de not timing out 1 hour limit Fault code displayed See FAULT CODES under troubelshooting in the I O Manual Does IDM Shut off after post purge Does I B M shut off after 90 seconds plus slew Double che...

Страница 79: ...S PUSH BUTTON SWITCH HPC HIGH PRESSURE CONTROL PFC POWER FACTOR CHOKE FLAME SENSOR FLMS 3 PIN CONNECTOR PL 9 MAIN LIMIT CONTROL OVERTEMP SWITCHES 5 PIN CONNECTOR PL 7 5 PIN CONNECTOR PL 6 100K 125K MO...

Страница 80: ...80 CM 0616...

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