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FIGURE 45

TROUBLESHOOTING CHART

2-STAGE COMMUNICATING INTEGRATED

FURNACE CONTROL (IFC)

TROUBLESHOOTING GUIDE

ECM = Constant CFM Blowers. (Electronically commutated motor)
TSTAT = Thermostat.
IDM = Induced Draft Motor (or Inducer).
IFC = Integrated Furnace Control (or control board).
PS = Pressure Switch(es).
PFC = Power Factor Correction Choke.
SE = Spark Electrode (s).
SSD = Seven Segment Display of Furnace control
COMM. = Communication.
I&O = Installation & Operation Instructions Manual.

1) For communicating systems, go to the “setup” menu and set
    fixed fire rate to high. For legacy systems ensure W2 & W1
    are properly connected and make sure both are energized w/
    240ac  after the heat call is palced.
2) Set FAN switch to “AUTO” on T-stat.
3) Set thermostat to call for heat (set temp. differential to greater
     than 10°F).
4) “H” should be displayed at “SSD’s” and should be on steady, if 
     flashing check dip switches (Item “1”).

For Non-Comm. Systems.

“A capital 

H

 is displayed at IFC SSD’S” ?

Dual SSD’S “ON” ?

92-22744-24-00

Is thermostat heat call present? 
For 24 VAC (Non-Comm. T-stat., is 24 VAC on W1 and/or W2 of 
IFC. H or h should be displayed at SSD’S. ?

Is a fault code displayed at IFC?

(After 10 Sec. a fault code will display anyway)

H or h only

For 1st 10 Sec. only

FAULT

Under ”Troubleshooting” 

in I & O Manual

Check W2 & connections, 

replace or repair as 

necessary

 Check t-stat, replace if 

necessary.

(pre-purge)  IDM runs for 30 sec. at low speed?

Does IDM Run for 60 Sec. and then off 

for five minutes with fault 

45, 46 or 57 displayed?

- See FAULT CODES under “Troubleshooting” in
   I&O Manual.

ECM BLOWER “ON” DELAY

J16-4

J16-5 on IFC.

NOTE:

 If IFC goes into lockout (”r” will be displayed at SSD’s), shut off 

main power to unit, wait 30 seconds then reset power or removed heat 
call and re-establish. 

- Check all connections between I.F.C. & E.C.M. Motor.
- Check 24v to E.C.M. control (4pin connector, pin 1-4)
- Check Dip switch setting.
- Check P.F.C. choke.
- Check all wiring and connections to P.F.C choke.
- Check fault code display, see “fault  codes” in I & O. 
- Check line voltage to motor (115VAC).

Does ECM blower start on high heat

speed 15-20 seconds after burners light?

Note: IFC SSD’s will display “22, 33 or 23”. 

?

Note:

 If good flame is not sensed a fault code 

“11” or “13” will be displayed at SSD’s

Note: 

“12” is low flame sense, furnace should  

still operate well.

Fault code 

“45”, “46” or 

“57” displayed 

at SSD’s.

- Check test mode dip switches.
- Make sure test mode has not
  expired (1 hour limit).

CHECK:

- Fault codes at IFC SSD - see FAULT CODES under troubleshooting
  in I&O manual.
- 24V Between IFC pins J16, Pin 4 & J16, Pin 5 of I.F.C.
- Make sure heat call present at T-stat.
- T-stat wires and connections

Remove heat call by setting T-stat set point below 
room temperature. For communicating t-stats, go to 
“setup” menu and set fixed fire rate to low. For legacy 
systems, ensure low heat call w/ 24vac on W1and 0 
VAC on W2. Initiate new heat call. Allow heat call to 
proceed through blower on delay. The burners drop 
from high fire to low rate and I.B.M. energizes at low 
heat CFM. 

Check to make sure test mode dip switches are properly set.

- Check all connections between IFC and ECM motor.
- Check 24V to ECM Motor. (low voltage connector, pins 1 & 4)
- Check P.F.C. Choke.
- Check all wiring and connections to P.F.C. choke.
- Check fault code display and see “fault codes” In I & O.

Does I. B. M. energize at low speed?

After Blower on delay, Does IDM switch to low speed 
and remain at low speed after switching?

Does furnace continue to operate at low 
fire until T-stat satisfied or heat call 
removed?

Ensure T-stat not 
switching to high fire or 
test mode 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 check - is heat call 

completely off at IFC?

** System will attempt to light 4 times. Voltage Is present at gas valve for 
only 7 seconds during each ignition trial. System will enter a 1 hour 
lockout after 4 attempts. 

Be sure to note dip switch settings before troubleshooting.

For Comm. System

Lower case “h”

C

a

p

ita

l “

H

-Check line voltage at I.D.M.
-Check Wires And connections between I.D.M. and I.F.C.
-Ensure line voltage between J2, Pin 1 & J2, Pin 4 of I.F.C. (High IN Output).
-Check I.D.M. Capacitor.

Spark Electrodes (SE) Energize?

See I&O.

Does gas valve remain

 energized?

PROBLEM
PERSISTS

CHECK:
AIRFLOW

 - ensure no restrictions, such as dirty filter, blower wheel, dampers 

or closed registers, Etc. exist.

LIMITS

 - ensure good wire and connections between I.F.C. and all limits.

makes sure limits are not open when circulating air temperature is within a 
specific range.

ROLLOUTS

 - Ensure rollouts or overtemperature limits do not need to be 

reset. make sure no flame rollout in burner compartment due to blocked flue 
or heat exchanger or combustion restriction.

OVERFIRE

 - ensure furnace is not overfired (temp rise is above stated 

range). Check gas valve, proper orifice size, gas presure

CHECK:

-Grounding on I.F.C. in place and continuity between screw and field 
  -installed ground.
-Flame sense rod clean (clean if nessessary).
-Wire continunity between flame sense rod and J1, Pin1 on I.F.C.
-Flame carries across all burners, and all burners stay lit.

Remove heat call by setting 
T-stat below room temp.

Remove power to furnace, open blower compartment 
and restore dip switches to original settings. Replace 
blower door. Restore power to unit.

- Check wire and all connections between I.F.C.J2 and I.D.M
- Check for 115 VAC on P2.
- Check I.D.M. capacitor.
- Check I.D.M. low speed. Replace if neccessary. 

C

G0 T0

I

Does the IDM Start on Low Speed?

PROBLEM PERSISTS

REPEAT THIS SEQUENCE UNTIL TROUBLE- FREE OPERATION

63

Summary of Contents for RGLE series

Page 1: ...s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Do not return to your home until authorized by the gas supplier or fire department DO NOT...

Page 2: ...THE BUFFER 48 COMMUNICATING SYSTEMS 49 START UP PROCEDURES 57 IGNITOR PLACEMENT ALIGNMENT LOCATION 57 TO START THE FURNACE 57 TO SHUT DOWN THE FURNACE 57 SEQUENCE OF OPERATION 57 ADJUSTING OR CHECKIN...

Page 3: ...ng said thirty 30 day period a battery operated carbon monoxide detector with an alarm shall be installed 2 APPROVED CARBON MONOXIDE DETECTORS Each carbon monoxide detector as required in accordance w...

Page 4: ...RISK OF IGNITING FLAMMABLE VAPORS WHICH MAY BE PRESENT IN A GARAGE ALSO THE FURNACE MUST BE LOCATED OR PROTECTED TO AVOID PHYSICAL DAMAGE BY VEHI CLES FAILURE TO FOLLOW THESE WARNINGS CAN CAUSE A FIR...

Page 5: ...l DC microamp A flame signal hot surface ignition units Correct control voltage Measure and set heat anticipator amperage Air conditioning low voltage wires connected to terminals Y C not with wire nu...

Page 6: ...AFUE value which translates into a low operating cost is not the only con cern that consumers have They also want a furnace with a reasonable installed cost They want a furnace that provides them with...

Page 7: ...and blower assembly EXHAUST VENT NOTICE NOTICE RECEIVING Immediately upon receipt all cartons and contents should be inspected for transit damage Units with damaged cartons should be opened immediatel...

Page 8: ...OLTAGE E SIGHT GLASS A B FIGURE 3 UPFLOW HORIZONTAL DIMENSIONS IMPORTANT This furnace is not approved or recommended for installation on its back with access doors facing upwards REDUCED CLEARANCE IN...

Page 9: ...OW VOLTAGE GAS CONNECTION ELECTRIC CONNECTION E S A R A 26 5 8 26 13 16 6 3 16 20 3 8 23 3 8 5 8 5 8 3 4 5 8 34 23 3 8 20 3 8 6 3 16 24 7 16 26 5 8 20 1 8 28 1 16 7 8 DIA 7 8 DIA 1 5 8 DIA CLEARANCE T...

Page 10: ...r flow This can adversely affect furnace operation BE SURE TO CHECK AIR FLOW if using any filter other than the facto ry provided filter NOTE DO NOT take return air from bathrooms kitchens furnace roo...

Page 11: ...to the furnace plenum opening or indoor coil NOTE The RGLE has louvers to cool the inducer motor bearings DOWNFLOW UNITS THE DOWNFLOW FURNACE DESIGN IS CERTIFIED FOR INSTALLATION ON A NON COMBUSTIBLE...

Page 12: ...he atmosphere is excluded from warranty coverage The following types of installation may require OUTDOOR AIR for combustion due to chemical exposures Commercial buildings Buildings with indoor pools F...

Page 13: ...space any space smaller than shown above as unconfined must have openings into the space which are located in accordance with the requirements set forth in the follow ing subsections A and B Size the...

Page 14: ...ing for all equipment in the enclosure Here are typical duct sizes B Method 2 One permanent opening located within 12 inches of the top of the enclosure shall be permitted where the equipment has clea...

Page 15: ...et air opening at the furnace must be pro tected from accidental blockage Install a 90 elbow pointing horizontally at the top of inlet air pipe See Figure 11 maximum of 2 221 2 45 or 90 elbows allowed...

Page 16: ...nal Fuel Gas Code ANSI Z223 1 and or the Natural Gas Installation Code CSA B149 1 2 for proper installation practices NOTE Follow combustion air instructions as outlined in this manu al Single wall ve...

Page 17: ...ight above the highest connected equipment draft hood or flue collar 3 Must rise 1 4 per foot away from the furnace on horizontal runs and be supported with straps or hangers so it has no sags or dips...

Page 18: ...mmer exhaust fan Close fireplace dampers 4 Follow the lighting instructions Place the appliance being inspected into operation Adjust the thermostat so the appliance will operate continuously 5 Test f...

Page 19: ...size to the combination gas valve on the fur nace Refer to Table 2 for the recom mended pipe size for natural gas and Table 3 for LP gas pipe sizes IMPORTANT It is permissible to run flexible gas conn...

Page 20: ...GH ALTITUDE INSTALLA TIONS OF THIS BOOK FOR INSTRUCTIONS NEVER PURGE A GAS LINE INTO THE COMBUSTION CHAMBER NEVER USE MATCHES FLAME OR ANY IGNITION SOURCE FOR CHECKING LEAKAGE FAILURE TO FOLLOW THIS W...

Page 21: ...heat to maintain proper pressure levels Ensure LP stor age tank does not drop below 15 capacity during heating season FIGURE 16 TYPICAL HOSE CONNECTION TO LINE PRESSURE TAP Maximum capacity of pipe in...

Page 22: ...allen wrench for making the pressure adjustment LP GAS Furnaces for use on LP gas the LP gas supply pressure must be set between 11 0 and 13 0 W C by means of the tank or branch supply regulators The...

Page 23: ...NFPA70 OR IN CANADA THE CANADIAN ELECTRICAL CODE CSA C22 1 OR LOCAL CODES THAT APPLY A GROUND SCREW IS PROVIDED IN THE JUNCTION BOX FAILURE TO PROPERLY CONNECT THE GROUND WIRE CAN CAUSE ELECTRICAL SHO...

Page 24: ...door off manually hold the push button door switch in 2 Use a voltmeter to measure the voltage from any 120 VAC terminal to any bare metal ground on the furnace 3 The voltage should be a nominal 115 v...

Page 25: ...ich are capable of a maximum delivery of 2000 CFM will operate the electronic air cleaner at 800 CFM and above These limits are set to prevent excessive production of ozone at the lower airflows of th...

Page 26: ...idifier with exter nal and internal power supplies respectively Dehumidification oper ation will be disabled if the dipswitch SW2 1 is in the OFF posi tion If this switch is in the ON position dehumid...

Page 27: ...e Further if this switch is ON and no humidistat is installed airflow in cooling will be perma nently reduced by approximate ly 15 C HUMIDIFICATION AND DEHUMIFI CATION CONTROL REQUIRES OPTIONAL HUMIDI...

Page 28: ...oling airflow A BLOWER RUNS Y1 NORMALLY CLOSED If the device does not have normally open contacts an additional relay must be used for proper system operation NORMALLY OPEN When the device is connecte...

Page 29: ...1050 Q 23 81 ft3 Natural Gas per hour From Table F 1 of Natural Fuel Gas Code Handbook 2002 3 5 w c col umn Orifice required at Sea Level 43 From Table F 4 of National Fuel Gas Code Handbook 2002 Ori...

Page 30: ...22 000 21 000 20 000 19 000 18 000 17 000 16 000 All calculations are performed by using the first three columns of information only Before beginning any calculations determine the individual burner...

Page 31: ...EXPERIENCE HIGHER UTILITY BILLS MAJOR COMPONENT FAIL URE VARYING DEGREES OF AIR NOISE OR OTHER UNSATISFACTORY ISSUES OVER WHICH THE MANU FACTURER HAS NO CONTROL One of the most common causes of heat e...

Page 32: ...ge listed on the furnace name plate See product specifica tion sheet and nameplate located on furnace If the measured temperature rise is above the approved range either the air flow is too low or the...

Page 33: ...R R are the traditional thermostat inputs used in nearly all HVAC equipment Installation of the thermostat to these connections is straight forward and simple H HU UM M S ST TA AT T This terminal is u...

Page 34: ...Y1 Y2 at the furnace con trol NOTE A heat pump condenser cannot be installed with this configuration There is no control for the reversing valve 24 VAC FROM TRANSFORMER XFORMER CONNECTIONS These inpu...

Page 35: ...led HUMIDIFICATION AND DEHUMIDIFICATION of this doc ument 15 PIN MATE N LOK CONNEC TOR J1 see Fig 28 The 15 pin Mate n Lok style connector provides connections for a variety of inputs and outputs to t...

Page 36: ...is used For troubleshooting purposes follow the wiring diagram and troubleshooting flowchart supplied in this manual and on the inside of the furnace blower door Additionally the pin designations for...

Page 37: ...ine or a telephone Doing so could dam age the furnace control or the tele phone or telephone lines or both COMMUNICATIONS NETWORK CONNECTION These connections are used when installing a communicating...

Page 38: ...be displayed Valid Furnace Shared Data is defined as furnace shared data for the fur nace series in question with the cor rect motor horsepower However it is impossible for the furnace control to det...

Page 39: ...furnace shared data on the mem ory card or in the microprocessor and memory cards cannot be written or rewritten in the field 1 If n no o m me em mo or ry y c ca ar rd d p pr re es se en nt t a Furna...

Page 40: ...he original furnace control has been replaced and there is no furnace shared data on the net work or the furnace is not part of a communicating network i e is not connected to a com municating condens...

Page 41: ...me em mo o r ry y c ca ar rd d p pr re es se en nt t outlined in 2 above are used A fault code is not displayed anywhere unless warranted for the attached memo ry card per the rules outlined for o on...

Page 42: ...communicatinig systems as a final confirmation of the correct shared data the model number should be verified by checking the furnace user menu under the sub menu titled Unit Info Make sure that the m...

Page 43: ...DOING THIS WILL GIVE THE REPLACEMENT CONTROL ITS IDENTITY NOTE THAT THERE WILL BE TWO MEMORY CARDS THE ORIGINAL INSERTED INTO J11 AND THE REPLACEMENT STILL ATTACHED TO THE REPLACE MENT FURNACE CONTROL...

Page 44: ...gs do not affect cooling airflow when installed with a fully communicating condenser In that case the condenser supplies the information for cooling airflow which is preset at the factory and not adju...

Page 45: ...0 CFM 2000 CFM 5 Ton A C ON OFF ON 1600 CFM 800 CFM 1600 CFM 4 Ton A C ON ON OFF 1400 CFM 700 CFM 1400 CFM 3 5 Ton ON ON ON 1200 CFM 600 CFM 1200 CFM 3 Ton OFF OFF OFF 2000 CFM 1400 CFM 1800 CFM 5 Ton...

Page 46: ...W2 2 1 1 C Ca al ll l V Vo ol lt ta ag ge e a at t H HU UM M A Ac ct ti io on n ON COOL 24 Normal Cool c or C ON COOL 0 Dehum Cool cd or Cd ON Heat 24 Hum Contacts Closed ON Heat 0 Hum Contacts Open...

Page 47: ...er speed as follows P Ph ha as se e 1 1 0 to 7 minutes Low of fur nace capacity gas valve output and blower speed P Ph ha as se e 2 2 After 7 minutes 100 of fur nace capacity gas valve output and blow...

Page 48: ...See the section of this manual titled USER MENUS under STATUS 1 or STATUS 2 submenu BLOWER CFM FAULT CODE BUFFER Upon power reset the last five fault codes from the furnace will be dis played on the...

Page 49: ...iring diagram for connecting the furnace to an approved ClimateTalk communicat ing thermostat and approved Rheem or Ruud communicating condenser The only approved configuration is to install dedicated...

Page 50: ...be turned on The thermo stat will display the following text SEARCHING is displayed several times for sever al seconds Next the text FURNACE FOUND and AIR CONDITIONER FOUND or HEAT PUMP FOUND dependin...

Page 51: ...is will continue until the high cooling call information is provided from the condenser Once the max cool ing CFM value has been transmitted by the condenser condenser must reach high stage in heat pu...

Page 52: ...ate in standby mode These should only be read and used when the blower is running in heat cool or other modes STATUS 1 menu This menu gives information about the status of certain furnace components a...

Page 53: ...including a non functioning blower relay on the furnace control or a non func tioning inducer 5 FURN LO PR SW Indicates the state of the Low Pressure Control LPC also known as low pressure switch eith...

Page 54: ...ernal sensor attached to the control If the temperature can not be sensed for some reason the text FLT will be displayed This temperature is displayed in degrees F and can not be changed to Celsius un...

Page 55: ...HT T C CY YC CL LS S Indicates the num ber of cycles of operation of high gas heat over the life of the furnace 6 6 B BL LO OW WE ER R H HR RS S Indicates the number of hours of continuous fan operat...

Page 56: ...ace control does not recognize switch setting changes while energized To change settings remove power to the board by turning off the disconnect or switch to the furnace control or removing power at t...

Page 57: ...any room registers To ensure proper ventilation it is recommended to open windows and doors before initial firing The furnace has a negative pressure switch that is a safety during a call for heat The...

Page 58: ...TABLE 17 NORMAL OPERATION CODES 58...

Page 59: ...wo stage thermostat set the thermostat to its highest setting to keep the furnace operating in the high fire mode 2 To adust high fire manifold pressure remove the adjustment cover screw on the outlet...

Page 60: ...LE 19 FILTER SIZES WARNING NOTE Some filters must be ordered or resized to fit certain units and applications UPFLOW FILTER SIZES AS SHIPPED FURNACE INPUT BOTTOM SIDE QUANTITY WIDTH BTUH SIZE SIZE 171...

Page 61: ...SUPPORT ANGLE SEE ANGLE DETAIL AE 61883 01 FILTER ROD SUPPORT ANGLE AE 60520 01 FILTER SUPPORT ANGLE AE 61883 01 CUT OUT AND DRILL DETAIL FILTER AND ROD ASSEMBLY ROD FILTER SUPPORT ANGLE ASSEMBLY SOL...

Page 62: ...oration from corrosion or other sources HOLES IN THE VENT PIPE OR HEAT EXCHANGER CAN CAUSE TOXIC FUMES TO ENTER THE HOME RESULTING IN CARBON MONOXIDE POISONING OR DEATH THE VENT PIPE OR HEAT EXCHANGER...

Page 63: ...t mode has not expired 1 hour limit CHECK Fault codes at IFC SSD see FAULT CODES under troubleshooting in I O manual 24V Between IFC pins J16 Pin 4 J16 Pin 5 of I F C Make sure heat call present at T...

Page 64: ...e Check fault code display and see fault codes In I O Does I B M energize at low speed After Blower on delay Does IDM switch to low speed and remain at low speed after switching Does furnace continue...

Page 65: ...in the furnace control buffer turn dipswitch SW3 2 on off on off or off on off on within 30 seconds The right most seven segment display will ener gize the upper and lower horizontal members for four...

Page 66: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 66...

Page 67: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 67...

Page 68: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 68...

Page 69: ...69 TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED...

Page 70: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 70...

Page 71: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 71...

Page 72: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 72...

Page 73: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED when the inducer is energized at high speed 73...

Page 74: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED when the inducer is energized at low 74...

Page 75: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 75...

Page 76: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 76...

Page 77: ...TABLE 20 FURNACE FAULT CODES EXPANDED W DESCRIPTIONS AND SOLUTIONS CONTINUED 77...

Page 78: ...r is faulty Check the resistance at different temperatures if possible If resistance is more than a few hundred ohms out of range replace sensor 60 F 16 C resistance Approx 15 400 70 F 23 C resistance...

Page 79: ...FIGURE 46 WIRE DIAGRAM 79...

Page 80: ...r 5 sec ond high speed post purge h The main blower runs for 50 140 seconds on high heat speed or 80 170 seconds on low heat speed this timing is field adjustable See Figure 22 for switch settings Seq...

Page 81: ...ee Figure 36 for switch settings SW2 3 SW2 3 Call for 2nd stage heat after 1st stage The R and W2 thermostat contacts close calling for 2 stage heat The induced draft motor switches to high speed and...

Page 82: ...Y2 2 STAGE ELECTRONIC THERMOSTAT NON COMMUNICATING 2 STAGE GAS FURNACE FIGURE 48 WIRING DIAGRAM FOR SINGLE STAGE HEAT NON COMMUNICATING NO MECHANICAL THERMOSTATS 2 STG COOLING ONLY YL Y1 YL Y1 Y Y2 Y...

Page 83: ...FIGURE 50 WIRING DIAGRAM SPECIAL CONFIGURATION COMMUNICATING THERMOSTAT AND FURNACE WITH NON COMMUNICATING CONDENSER 83...

Page 84: ...a small amount of insulation from the wire to expose clean new copper for the communicating con nections Fresh copper must be exposed when making the communi cating connections or communications may n...

Page 85: ...nstallations where this is not desired In these cases the thermostat will be communi cating with the furnace control and the furnace control will energize the con denser as necessary the additional re...

Page 86: ...area using a communicating thermostat see the installation and operation instructions for that thermo stat For detailed user menu text navigation and descriptions refer to the section of this manual t...

Page 87: ...ates how to view and enter the furnace user menu and subsequent sub menus with the HCTST501CMMS communicating thermostat To get into the submenus use the up and down arrow keys of the thermostat to di...

Page 88: ...FT HAND CORNER OF THE THERMOSTAT PRESS THE LEFT OR RIGHT ARROW KEY A UNTIL THE TEXT 15 IS DISPLAYED IN THE CORNER PRESS THE UP OR DOWN ARROW KEY OR THE MENU KEY TO SET THE VALUE IF THE MENU KEY IS PRE...

Page 89: ...f fr ro om m M Me en nu us s Figure 56 demonstrates how to escape from a menu back to the main screen or how to return to a previous menu level using the HC TST501CMMS communi cating thermostat FIGURE...

Page 90: ...TST550CMMS FULL COLOR PROGRAMMABLE COMMUNICATING THERMOSTAT VIEWING FURNACE FAULT MESSAGES WITH THE HC TST550CMMS THERMOSTAT To enter a particular user menu on the HC TST550CMMS full color communicat...

Page 91: ...ill appear 4 The furnace menu options will appear Use the up and down arrow keys to select the desired menu Next press M M to enter the desired menu Next the next screen below will appear FIGURE 64 NA...

Page 92: ...s FIGURE 65 ENTER THE ADVANCED INSTALLER MENU 1 From the main screen press the left and right arrow keys together at the same time for at least 3 seconds The next screen below will appear 2 The A AD D...

Page 93: ...et to 0 FIGURE 70 SELECT THE DESIRED VALUE 7 6 Use the up and down arrow keys to view and navigate to the desired setup selection Once the desired menu item is highlighted press the M M key to change...

Page 94: ...cc ce es ss sf fu ul l will be displayed briefly upon successfully changing the setting 9 To escape from this menu press the E En nt te er r to return to the furnace user menus or H Ho om me e button...

Page 95: ...95...

Page 96: ...96 CM 0810...

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