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Page 60

I- Proper Ground and Voltage

A poorly grounded furnace can contribute to premature

ignitor failure. Use the following procedure to check for

ground and voltage to the integrated control.

1 - Measure the AC voltage between Line Neutral

(spade terminals) and “C” terminal (low voltage

terminal block) on the integrated control. See

FIGURE 51. A wide variation in the voltage between

Line Neutral and “C” as a function of load indicates a

poor or partial ground. Compare the readings to the

table below. If the readings exceed the maximum

shown in TABLE 34, make repairs before operating

the furnace.

2 - In addition, measure the AC voltage from Line Hot

to Line Neutral (spade terminals) on the integrated

control. See FIGURE 51. This voltage should be in

the range of 97 to 132 Vac.

TABLE 34

Furnace Status

Measurement VAC

Expected

Maximum

Power On Furnace Idle

0.3

CAI/Ignitor Energized

0.75

Indoor Blower Energized

Less than 2

CHECK VOLTAGE BETWEEN LINE NEUTRAL

AND LOW VOLTAGE “C” TERMINAL

CHECK VOLTAGE BETWEEN LINE HOT

AND LINE NEUTRAL

W915
W951
W914

EAC

HUM

7-SEGMENT

DIAGNOSTIC LED

W915
W951
W914

EAC

HUM

7-SEGMENT

DIAGNOSTIC LED

FIGURE 51

Содержание SLP99DF070XV36B

Страница 1: ...2 000 Btuh 19 3 to 38 6 kW and cooling applications from 2 to 5 tons 7 0 kW to 17 5 kW Refer to Engineering Hand book for proper sizing Units are factory equipped for use with natural gas Kits are ava...

Страница 2: ...res and according to FTC labeling regulations Isolated combustion system rating for non weatherized furnaces 2 2 in Rubber Flue Coupling is furnished for exhaust pipe connection to unit SPECIFICATIONS...

Страница 3: ...44W93 Flush Mount US 2 2 1 2 or 3 in 51W11 51W11 Canada 2 2 1 2 or 3 in 51W12 51W12 Wall Close Couple US 2 in 22G44 3 in 44J40 44J40 Wall Close Couple WTK Canada 2 in 30G28 3 in 81J20 81J20 Roof Term...

Страница 4: ...Cool Mode Available Cooling Blower Performance Table First stage COOL two stage air conditioning units only is approximately 70 of the same second stage COOL speed position Continuous Fan speeds are a...

Страница 5: ...en stages Cool Mode Available Cooling Blower Performance Table First stage COOL two stage air conditioning units only is approximately 70 of the same second stage COOL speed position Continuous Fan sp...

Страница 6: ...l Static Pressure Range Cooling Adjust CFM Selections Blower Speed Selections First Stage Cool Speed cfm Second Stage Cool Speed cfm Low Medium Low Medium High High Default Low Medium Low Medium High...

Страница 7: ...ge Cooling Adjust CFM Selections Blower Speed Selections First Stage Cool Speed cfm Second Stage Cool Speed cfm Low Medium Low Medium High High Default Low Medium Low Medium High High Default Increase...

Страница 8: ...Range Cooling Adjust CFM Selections Blower Speed Selections First Stage Cool Speed cfm Second Stage Cool Speed cfm Low Medium Low Medium High High Default Low Medium Low Medium High High Default Incr...

Страница 9: ...PANEL COMBUSTION AIR INDUCER BLOWER ACCESS PANEL BLOWER ASSEMBLY Variable Speed Blower Motor Is Hidden BAG ASSEMBLY CONTROL BOX includes variable capacity integrated control transformer circuit breake...

Страница 10: ...be manually reset by pressing the button on the face See FIGURE 3 CIRCUIT BREAKER CB8 PRESS TO RESET FIGURE 3 WARNING Shock hazard Disconnect power before servicing Integrated control is not field rep...

Страница 11: ...usted accordingly to provide the appropriate air flow at any rate On the initial call for low fire the furnace will operate at 35 and will remain there until the heat call is satisfied or a call for h...

Страница 12: ...IFICATION SIGNAL W2 HEAT DEMAND FROM 2ND STAGE T STAT W1 HEAT DEMAND FROM 1ST STAGE T STAT R CLASS 2 VOLTAGE TO THERMOSTAT G MANUAL FAN FROM T STAT C THERMOSTAT SIGNAL GROUND CONNECTED TO TRANSFORMER...

Страница 13: ...Page 13 SLP99UHV INTEGRATED CONTROL CONFIGURATION GUIDE FIGURE 5...

Страница 14: ...e adjusted by moving switches 4 and 5 on the integrated control The unit is shipped from the factory with a blower off delay of 120 seconds The blower off delay affects comfort and is adjustable to sa...

Страница 15: ...ory set at option A which has the greatest effect on blower motor performance TABLE 8 provides the cooling mode blower speed ramping options that will result from different switch settings The cooling...

Страница 16: ...vari ous furnace firing rates Refer to blower tables at the front of this manual for corresponding cfm values TABLE 9 Low Heat Blower Speeds Thermostat Demand Blower Speed Adjustments DIP Switch Setti...

Страница 17: ...t be pressed a second time while c is flashing to confirm command to delete codes Press the button until a solid is displayed to exit the Error Code Recall mode Field Test Mode Use the diagnostic push...

Страница 18: ...No change blinking remain in field test mode Solid exit field test mode Solid c start pressure switch calibration TABLE 13 Idle Menu Options These options are displayed on the menu when the button is...

Страница 19: ...econd period During that period hold push button until code stops blinking disappear for 2 seconds Integrated control will store code in memory and will automatically exit Field Test Mode and reset If...

Страница 20: ...wo horizontal bars will display Steps to follow if the damper control module is displaying the soft disable code Confirm proper wiring between all devices thermostat damper control module indoor and o...

Страница 21: ...es of water column pressure of high pressure switch on heat call measure inches of water column of operating pressure inspect vent and combustion air inducer for correct operation and restriction E226...

Страница 22: ...n mode is lower than cfm setting Restricted airflow Indoor blower is running at a reduced cubic feet per minute Cutback Mode The variable speed motor has pre set speed and torque limiters to protect t...

Страница 23: ...it OPERATING SEQUENCE SYSTEM DEMAND SYSTEM RESPONSE System Condition Step Demand Relative Humidity Compressor Blower CFM COOL Comments 1st stage O G Status D NO CALL FOR DEHUMIDIFICATION Normal Operat...

Страница 24: ...70 Dehumidification call ONLY 1 On On On On Demand 0 VAC High 70 door unit energized after point has been reached in order to maintain room humidity setpoint ROOM THERMOSTAT CALLS FOR FIRST AND SECOND...

Страница 25: ...to drive the motor The con troller contains a microprocessor which monitors varying conditions inside the motor such as motor workload The controller uses sensing devices to sense what posi tion the r...

Страница 26: ...cks out Reset controller by momentarily turning off power to unit The DC filter capacitors inside the controller are connect ed electrically to the motor supply wires The capacitors take approximately...

Страница 27: ...e Do not apply 24V to pins 2 and 4 on P49 Doing so will cause permanent damage to the motor 6 Motor should run at 75 7 Test is complete Remove jumpers and reconnect plugs Another option is to use the...

Страница 28: ...A Measure the resistance between each of the three motor leads 3 pin plug and the unpainted part of the end shield If the winding resistance to ground is 100k ohms replace the motor and control modul...

Страница 29: ...with two identical switches The limit is a N C SPST manual reset limit connected in series with the primary limit S10 When S47 senses rollout the circuit breaks and the inte grated control immediatel...

Страница 30: ...age 30 Burner Box Assembly burner assembly rollout switch ignitor flame sensor burner box front cover remove screw to open cover sight glass intake air collar Cover plate 090XV60C model only FIGURE 14...

Страница 31: ...ed con trol section section A subsection 4 for more details The valve is internally redundant to assure safety shut off If the gas valve must be replaced the same type valve must be used A 24VAC 2 pin...

Страница 32: ...ction Clean as needed Measure the resistance between each of the wind ings All readings should read 16 74 14 26 and be approximately 10 of each other Check each winding to ground to confirm there is n...

Страница 33: ...of a normal heating cycle described below If this check fails the pressure switch calibration will follow on the next call for heat 1 The inducer runs 15 seconds at the last firing rate before the hea...

Страница 34: ...ll combustion air sensing hoses to the pressure switch RED and BLACK TUBING or RED TUBING NEGATIVE BLACK TUBING POSITIVE Measuring Pressure Differential To Cold End Header Box Field Installed Measurin...

Страница 35: ...Exhaust Elbow Exhaust Coupling Blower Deck Seal Pipe Clamp Exhaust Pipe Intake Air Pipe Cold End Header Box Combustion Air Inducer CAI Exhaust Connector with Alignment Tabs Drain Cap Combustion Air I...

Страница 36: ...g Enabled Outdoor Unit COMMUNICATING ENABLED OUTDOOR UNIT OPTIONAL OUTDOOR AIR SENSOR OPTIONAL DISCHARGE AIR SENSOR CLIP Y1 TO Y2 FOR TWO STAGE OPERATION Indoor Unit Controller Outdoor Unit Communicat...

Страница 37: ...Gs Cf HVAC EQUIP DEHUMIDIFIER CONTROL HVAC EQUIPMENT DH 24V IN JUMPER COMMUNICATING ENABLED FURNACE COMMUNICATING ENABLED FURNACE ICOMMUNICATING THERMOSTAT CONVENTIONAL NON COMMUNICATING SYSTEM COMMUN...

Страница 38: ...OMMUNICATING THERMOSTAT OR DAMPER CONTROL MODULE CONVENTIONAL TERMINALS FLOAT SWITCH LENNOX COMMUNICATING INDOOR UNIT CONVENTIONAL OUTDOOR UNIT 1 OR 2 STAGE LENNOX COMMUNICATING FURNACE EL296V SL280V...

Страница 39: ...therm UL 1738 CERTIFIED GAS VENTING SYSTEM IPEX System1738 Schedule 40 PVC Pipes and Fittings UL1738 IPEX System1738 PVC FGV Cement Primer CAUTION Solvent cements for plastic pipe are flammable liquid...

Страница 40: ...ions outlined in ASTM D 2855 NOTE A sheet metal screw may be used to secure the intake pipe to the connector if desired Use a drill or self tapping screw to make a pilot hole 1 Measure and cut vent pi...

Страница 41: ...r stack that also serves another gas appliance If vertical discharge through an existing unused stack is required insert PVC pipe inside the stack until the end is even with the top or outlet end of t...

Страница 42: ...pe diam eter IMPORTANT Do not use screens or perforated metal in exhaust or intake terminations Doing so will cause freeze ups and may block the terminations Flue Coupling The provided flue coupling m...

Страница 43: ...88 8 56 34 105 58 N A 127 108 83 9 51 29 100 53 122 103 78 10 46 24 95 48 117 98 73 Standard Termination at Elevation 4501 7500 Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Model Model...

Страница 44: ...22 85 44 101 94 69 Concentric Termination at Elevation 4501 7500 Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Model Model Model Model 070 090 110 070 090 110 070 090 110 070 090 110 1...

Страница 45: ...t pipe and intake pipe must be the same diameter 2 TRANSITION 2 1 1 2 070 Only DO NOT transition from larger to smaller pipe in horizontal runs of exhaust pipe Exhaust Exhaust FIGURE 27 TYPICAL AIR IN...

Страница 46: ...randa porch deck or balcony 12 7 feet 2 1m 3 feet 9m within a height 15 feet 4 5m above the meter regulator assembly 3 feet 9m 6 inches 152mm for appliances 10 000 pliances 10 000 Btuh 3kw and 50 000...

Страница 47: ...idered conditioned spaces IMPORTANT Do not use screens or perforated metal in exhaust terminations Doing so will cause freeze ups and may block the terminations IMPORTANT For Canadian Installations On...

Страница 48: ...he exhaust out the roof and the intake out the side of the structure FIGURE 33 2 Intake and exhaust pipes should be placed as close together as possible at termination end refer to illustrations Maxim...

Страница 49: ...accumulation FIGURE 33 7 If intake and exhaust piping must be run up a side wall to position above snow accumulation or other obstructions piping must be supported At least one bracket must be used w...

Страница 50: ...ective shield is recommended The shield should be constructed using wood sheet metal or other suitable material All seams joints cracks etc in affected area should be sealed using an appropriate seala...

Страница 51: ...KIT 30G28 or 81J20 Inches mm Side View 12 305mm Min above grade or cumulation optional intake elbow FIGURE 36 DIRECT VENT CONCENTRIC ROOFTOP TERMINATION 71M80 69M29 or 60L46 US 44W92 or 44W93 Canada M...

Страница 52: ...d 3 4 NPT street elbow fitting into cold end header box Use Teflon tape or appropriate pipe dope 3 Install the cap over the clean out opening at the base of the trap Secure with clamp See FIGURE 46 4...

Страница 53: ...equired FIGURE 43 IMPORTANT When combining the furnace and evaporator coil drains together the A C condensate drain outlet must be vented to relieve pressure in order for the furnace pressure switch t...

Страница 54: ...ction In Unit Condensate Drain Connection In Unit Vent To Drain Condensate Drain Connection In Unit Optional Condensate Drain Connection OptionalDrainPipingFromTrap DrainTrapAssembly Furnished DrainTr...

Страница 55: ...wait for the combustion air inducer to stop At this point the trap should be primed with sufficient water to ensure proper condensate drain operation BEFORE PLACING THE UNIT INTO OPERATION the unit sm...

Страница 56: ...Refer to the SLP99DFV Installation Instruction B Gas Piping WARNING Do not over torque 800 in lbs or under torque 350 in lbs when attaching the gas piping to the gas valve CAUTION If a flexible gas c...

Страница 57: ...nd install a field provided barbed fitting Connect measuring device connection to barbed fitting to measure manifold pressure 2 Tee into the gas valve regulator vent hose and connect measuring device...

Страница 58: ...Installed Gas Valve MANIFOLD PRESSURE MEASUREMENT FIGURE 49 Negative Port Positive Port Gas Valve Measuring Device Field Installed Operating Signal Delta P Measurement Black Tubing Red and Black Tubi...

Страница 59: ...its installed at altitude of 7 501 to 10 000 feet 2287 to 3048m require a pressure switch change per TABLE 32 TABLE 32 also lists gas conversion kit requirements at all altitudes The combustion air pr...

Страница 60: ...adings to the table below If the readings exceed the maximum shown in TABLE 34 make repairs before operating the furnace 2 In addition measure the AC voltage from Line Hot to Line Neutral spade termin...

Страница 61: ...tructions found in the kit for replacing the sensor The location is not compatible between sensor types Type 1 FIGURE 52 TABLE 35 Sensor Type 1 Unit a b 070V36B 3 from bottom 2 1 2 from right 090V36C...

Страница 62: ...eter hose flush with inside edge of hole or insulation Seal around the hose with permagum Connect the zero end of the manometer to the discharge supply side of the system On ducted systems connect the...

Страница 63: ...s 2 Check for the correct voltage at the furnace furnace operating 3 Check amp draw on the blower motor Motor Nameplate__________Actual__________ Winterizing and Condensate Trap Care 1 Turn off power...

Страница 64: ...33 Use securing screws to reinstall flue collar to the top cap on the furnace Reconnect exhaust piping and exhaust drain tubing 34 Replace flexible exhaust adapter tee on combustion air inducer and fl...

Страница 65: ...a 15 second pre purge in ignition speed 3 After the pre purge is complete a 20 second initial ignitor warm up period begins The combustion air inducer continues to operate at the ignition speed 4 Aft...

Страница 66: ...or is adjusted to a speed which matches the target rate A fixed 10 minute third stage on delay is initiated 6 If the heating demand continues beyond the thirdstage on delay the integrated control ener...

Страница 67: ...ul Trial Wait For Ignition Stabilization Delay Post Purge 20Seconds Soft Lockout Error Code Flashes YES NO NO YES Call For Heat Ends NO YES YES NO C A L L F O R 1 S T S T A G E H E A T 3A 2 1 1 OR Cal...

Страница 68: ...Error Code Flashes NO YES Wait 5 Minutes 3A 2 1 2 1 System will always light at 70 even if 2nd stage call for heat is in place If the high pressure switch does not close within 5 attempts the system...

Страница 69: ...stat 1 4 3A 3B YES OR Combustion Air Inducer switched to 70 rate speed Adjust Indoor Blower to appropiate speed Combustion Air Inducer OFF after 20 Second Post Purge Indoor Blower OFF after OFF Delay...

Страница 70: ...or Code Flashes YES NO NO YES Call For Heat Ends NO YES YES NO C A L L F O R H E A T 3B 1 4 Move to Mid Firing Rate and High Firing Rate after 2nd and 3rd Stage Delays based on DIP Switch selections P...

Страница 71: ...de High Cooling mode High Cooling mode Per Ramping Profile NO NO YES NO 5 1 2 1 2 2 2 1 Indoor Blower On After 2 second delay Energize Indoor Blower Per Ramping Profile Energize Indoor Blower Maintain...

Страница 72: ...oling 6 1 4 5 1 Call for Continuous Blower Indoor Blower On Maintain Indoor Blower at set speed Maintain Indoor Blower at set speed OR Maintain Indoor Blower at set speed Indoor Blower Per Indoor blow...

Страница 73: ...t ON delay OFF 7 minutes ON 12 minutes ON Intact Intact Intact S1 T STAT CONTROL TERM STRIP OUTDOOR UNIT 1 Heat 2 Cool NOTE Use DIP switch 3 to set second stage heat ON delay OFF 7 minutes ON 12 minut...

Страница 74: ...R cation or Harmony III W951 O to R Heat Pumps 2 Heat 2 Cool OFF Cut Intact Intact S1 T STAT CONTROL TERM STRIP OUTDOOR UNIT 2 Heat 2 Cool with t stat with tion mode OFF Cut Cut Intact S1 T STAT CONTR...

Страница 75: ...ct Intact Cut L7742U T STAT CONTROL TERM STRIP HEAT PUMP 67M41 Y H L Y2 D B L Y2 T T outdoor sensor Dual Fuel Two Stage Heat Pump ComfortSense 7000 L7742U thermostat w bilities Capable of 2 stage gas...

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