Relay o failure lennox 345 and line set as outlined in the XP16 Lennox Engineering Handbook. Page 1 TROUBLESHOOTING FOR UNITS EQUIPPED WITH THE LENNOX BLOWER DRIVE 508106-01 10/2020 GAS UNITS KITS AND ACCESSORIES 2020 WARNING Improper installation, adjustment, alteration, service or matched according to Lennox recommendations for the compressor to be covered under warranty. 352 Electric Heat Stage 2 Problem 345. 5 hp Factory O O O Belt Drive (standard efficiency) - 10 hp Factory O O O Supply VFD Blower Bypass (VAV/MSAV units w/VFD only) Factory O O O Drive Kits See Blower Data Tables for usage and selection Kit #1 740-895 rpm Factory O O O Kit #2 870-1045 rpm Factory O O O Kit #3 715-880 rpm Factory O O O View and Download Lennox LF24 manual online. 17 0. Supersedes 506461-02. Lennox Dealer Address 1−800−9−LENNOX Dealer Email www. Smart Home Security & Monitoring | 2GIG 1 Heat stage 1 relay coil 2 Heat stage 2 relay coil 3 Relay coil return 4 Heat stage 3 relay coil 5 Heat stage 4 relay coil 6 Heat stage 5 relay coil 7 L1 230VAC supply from heater kit 8 L2 230 VAC supply from heater kit 9 Not Used Unit Start-Up 1 - Use speed tap selection charts in tables 2 and 3 to set air handler blower speed. SEL introduced the world’s first microprocessor relay in 1984, revolutionizing the power protection industry by offering fault locating and other features for a fraction of the cost of earlier systems. C. 1 SECOND DELAY OFF 100% CFM 100% CFM 45 SECS COOLING DEMAND 1 2 34 Table of Contents CBA25UH Unit Dimensions – Upflow ©2017 Lennox Industries Inc. SERIAL NUMBER BL0A09000684 Each 345 relay has a unique Serial Number. com for a decent price, replaced the board, and the furnace works fine. Extensive product details, fast shipping, and expert support Lennox 12Y80 These relays are field convertible from hand reset to automatic reset and vice-versa. 3 - Remove the wiring plugged into K10-4 and K149-4. I have thoroughly reviewed the document and can help you locate the exact information you need or explain the content in clear and simple terms. The thermostat sends the unknown control a energized 24VAC is present on O terminal. S. 18 or 22AWG shielded Lennox Sep 3, 2023 · A relay is one of the crucial components of an AC unit, but most homeowners usually overlook it during maintenance leading to various electrical issues. 67 5. Temperature/Pressure Relief Valve − Provides temperature/pressure relief in case of abnormal operating conditions. − Approved by NOTE: Due to Lennox’ ongoing commitment to quality, features and options are subject to change without notice and without incurring liability. - in. Mar 6, 2013 · The relay that switches on the fan was closing the circuit when it should be, but the relay had no voltage across it. Upgrade your HVAC system with industry-leading solutions. CBA25UH Blower Performance (3-Speed PSC) – 230V (CFM @ ESP. Dallas, Texas, USA THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE WARNING Improper installation, adjustment, alteration, service or ©2016 Lennox Industries, Inc. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury. HVAC-Talk: Heating, Air & Refrigeration Discussion 2024 Lennox Industries Inc. With relay de- communication bus. Interlock relay failure (furnace or air handler modes only). (Make time and date as described on Page 8. lennoxcommercial. P. relay 345 The 345 protection relay chassis used with a draw out relay is available separately, for use as a partial replacement or in test environments. A relay that functions to prevent overheating of the field excitation winding by reducing or interrupting the excitation of the shunt field. A. Wvfan79 : Hello there! Hope you are doing well today. Lennox Communicating System Wiring Connections using Unshielded (Option 1) or Shielded Wiring (Option 2) Cabling There may be situations where alternate wirings methods may need to be employed. 6 - Connect one end of harness terminal marked TB1-C/ K220-B to terminal B on the K220 relay and the other end to the TB-1 C line. Removable terminals ease wiring and in-system testing or troubleshooting. ,15 february 2006 unit, direct support, and general support maintenance the event of a room sensor or thermostat failure. Drawout & Non-Drawout Construction. ) shutting down unit operation. 875 81. 5 - Install new fan power harness. Lennox 104284-02, Thermal Sequencer Relay, DPDT N. 10 x 9 11 x 10 11 x 11 11 x 11 Motor output - hp 1/2 3/4 1 1 Tons of add-on cooling 2 - 3 2. with field supplied (PVC coupling) - o. Another more serious symptom of a problem with the blower motor relay is a burned or melted relay. Refer to Engi-neering Handbook for approved system matchups. Fines and/or incarceration may be levied for noncompliance. An indoor coil check / expansion valve approved for use with HFC−410A must be ordered separately and Moved Permanently. OPTION 2. 3 Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Ordered a new board from www. 17 Breaker Failure Relay Processing Interval 0. 08 0. D8 Each 345 relay has a unique Mac Address. F4. I tried this for both the heat and fan-only settings, since they use separate relays. relay. Feb 11, 2023 · Either the pilot relay contacts did not close, or the relay coil in the electric heat section did not energize. 5 - 4 3 - 5 3 - 5 Air Volume Range - cfm 545 - 1360 575 - 1800 890 - 2130 860 - 2180 COMM BOOT TIME 14:48:29 This screen shows the relay communication boot code time. (194) LF24−230−250−300−345 and −400 models have two fans. OPTION 2 18 or 22AWG shielded Lennox Communicating Outdoor Unit Lennox Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages. 30" WC. aren't lennox furnaces under warranty for 10 years? 2005 Lennox Industries Inc. 1 Refer to the Lennox Refrigerant Piping Manual to determine refrigerant charge required with longer length refrigerant lines. Possible O relay / stage 1 failure. 10" WC. An indoor coil check / expansion valve approved for use with HFC−410A must be ordered separately and factured with Lennox Duralok heat exchangers formed of aluminized steel. 2- Affix wire markers to existing K25 relay wires if the marker is not already there or readable. Try the Error Code Lookup tool to instantly identify Lennox error codes and get troubleshooting steps on how to clear them. ETHERNET MAC ADR 00. Anyone have a schematic for this or heard about this kind of failure? Carrier Great Lakes Shop by department, purchase cars, fashion apparel, collectibles, sporting goods, cameras, baby items, and everything else on eBay, the world's online marketplace LENNOX LGA/LGC/LCA/LCC 21, 25 and 30 ton is a rooftop unit designed for commercial buildings. - Replace the ignition module. IMPORTANT This unit must be matched with an indoor coil as specified in the engineering handbook. The E30 uses a single-pole dual throw relay to generate O and B signals. Installation and service must be performed by a qualified installer and servicing agency. View and Download Lennox LF24 manual online. These FAQs address key concerns and provide guidance for resolving problems. O F F NC HHII LLO O HHI I WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Use kit supplied self-tapping screws to mount DPST relay(s) to the control bracket. fan harness. 50" WC-018 LOW 538 525 503 471 418 MED 688 670 639 603 548 HIGH 919 881 855 788 710-024 LOW 677 673 Dec 4, 2015 · The original Lennox Installation Instructions includes a nice troubleshooting flowchart. d. Jan 4, 2016 · Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system. Their subsequent Failure to comply with this requirement will void the certification of the unit by the approval agencies. PCO Outdoor Photocell GR2400 PCI Indoor Photocell. Mount DPST relay(s) (supplied with kit) next to the blower control board of Furnace 1. AIR HANDLER CONTROL FIELD . 9. It can also clog the expansion device and reduce sys­ tem performance and capacity. Two options are available to address an inductive voltage issue. Lennox Communicating Outdoor Unit Lennox Communicating Thermostat Cut shield off at this end Indoor Unit Communicating Control (Using Shielded Wiring for Communication Lines) 18AWG unshielded ** Shield (drain) wire MUST be connected to indoor unit common terminal. throw relay to generate O and B signals. TABLE 2. 92 4. Dallas, Texas, USA Page 1 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Never use a scroll compressor for eva- Hello! I am an AI chatbot specifically trained to assist you with the Lennox HPXA19 024 036, 038, 048, 060 heat pump Service Literature. Installation and service must be performed by a licensed professional HVAC installer or Sep 17, 2009 · Breaker Failure Relay Input Debounce Timer 0. The aluminum tape 2 - Remove wiring to K10 relay and K149 relay. − Supplied with unit for field installation. Feb 12, 2009 · 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–5. 25 Lennox wireless point-to-point connection to other Lennox Smart Hubs in home and other mobile devices running Lennox applications. This provides 24VAC to W, unless limit switch or F1 are open (or there is a related failure in the 24V supply or powerline 120V feed). 3 - Remove K10 relay, 56L6801, and replace with relay provided, 67K6501. O relay / Stage 1 failed (Pilot relay contacts did not close or the relay coil did not energize), LENNOX RESIDENTIAL COMMUNICATING SYSTEMS SERVICE MANUAL Parameters and Error Codes-Troubleshooting for Communicating Thermostats, Indoor and Outdoor Units, iHarmony, Equipment Interface Module and PureAir S Corp1817-L8 3/2021 Table of Contents 1. The O relay on the air-handler has failed. WARNING Mar 27, 2023 · So my best theory is the relay or something in the gas valve path has failed to the point that it still provides power to the gas valve but not enough power to engage it. Feb 16, 2021 · Relay Example. Rapid Weak Flame Sensed Often caused by carbon deposits on the flame sensor, a poorly grounded furnace or a mis-aligned flame sense probe. SKU: with field supplied (PVC coupling) - o. OPTIONS Thermostat We would like to show you a description here but the site won’t allow us. NOTE: Confirm there is no short or open circuits in the Lennox communicating thermostat connections to any of the other components in the communication system. ) 5 - After disconnecting factory wiring to K10-4 and K149-4 (blue and pink female 1/4ʺ QC terminal) Page 1 ©2018 Lennox Industries Inc. Free shipping on orders over $99 HI Pressure Switch, Manual Reset C. Not sure how to verify if it is new other than that. ELITE Series R-410A. ELECTRICAL INSTALLATION Trip1 and Trip2 output relays The 345 relay is equipped with seven electromechanical relays: two special relays designed for Winding 1 Breaker trip and Winding 2 Breaker trip, four general purpose relays (Auxiliary Relays 3 to 6), and a Critical Failure relay. 250 4. The air-handier will operate on 1 st stage electric heat until the issue is resolved. diameter x width - in. 08. Visit us at www. E348 Explore Lennox comfort and energy-efficient solutions for heating and cooling your space. Deep vacuum operation can cause internal fusite arcing resulting in damaged internal parts and will result in com-pressor failure. CAUTION matched according to Lennox recommendations for the compressor to be covered under warranty. 58C9701 Stacked Thermal Delay Relay, SPST N. Melted relay. There will be no heating or cooling due to this alert code – moderate condition. Box 799900 Dallas, TX 75379−9900 Litho U. Failure to connect to the appropriate terminal can cause the heat assembly to not operate properly. O. However, automatic reset overload relays should not normally be used with 2-wire control. - Carbon deposits can be cleaned with emery cloth. REPLACEMENT KIT This section contains Lennox Relays for HVAC applications. 6 Mounting screws (#6 X 1. Units are factory equipped for use with natural gas. 20" WC. BLOWER RELAY BLOWER RELAY PLASTIC CAPS 4-PIN BLOWER CONNECTOR HARNESS CHANGING BLOWER SPEED FIGURE 20 TABLE 2. When power off/ or control reset, 24VAC power shall not be present Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems. 10ACC units are applicable to Lennox RFCIV systems when matched with specific evaporator coils. txt) or read book online for free. 1. In non-communicating applications, the rubber to degrade. See step 6. , ON 1-60 Sec, OFF 1-45 Sec, 24 Volts Sale Clearance. Connect wire marked K10-5/A190-M in new harness, coming from the ICM Controller, to wire marked K10-5 coming from fan harness. R Class II. com Contact us at 1-800-4-LENNOX 1. EL16XC1-036-230A01 air conditioner pdf manual download. 500 8. ELECTROSTATIC DISCHARGE (ESD) Precautions and Lennox Industries Inc. Kits are available for conversion to LPG operation. Relay issues may also you’re your air conditioner to stop working properly. lennox-parts. E346 The R to O jumper was not removed on the air-handler control. 40" WC. XC21 Corp. Page 2 505059M 0511 Failure to do so can result in back or other type of injury. Elite® Series outdoor units are designed for use in check / expansion valve (CTXV) systems only and are not to be used with other refrigerant flow control devices. I suspected either the motor or something electronic had failed, since it smelled like burned electronics inside the unit. Failure to properly flush the system per this instruc­ tion and the detailed Installation and Service Proce­ Relay. Dallas, Texas, USA IMPORTANT For downflow application, kit number 83M57 (LB−109844A) is required. Lennox 67K6501, Relay, Flange Mount, DPDT, 24 VAC Coil, 15 Amp This unit has a delay relay that delays the supply blower “ON” for 1 second and keeps the blower “ON” for 45 seconds on all fan and cooling demands. See figure trol relays to operate unit Builtin Functions Include: − Blower On/Off Delay − Builtin Control Parameter Defaults, ensure proper unit operation when power is restored after power failure − Service Relay Output − Defrost Control − Dehumidification Control − monitors humidity levels, will allow both heating 2 - Remove wiring to K10 relay. 2 - Remove wiring to K10 relay. Heat section / Stage 4 failed (Same as Code 351). Use the female quick connect terminals We would like to show you a description here but the site won’t allow us. Relay K40 closes. com use type writer to change Dealer Phone Number Dealer Website If you want to modify a setting, use one of the tools shown in figure 6. Logic elements summary matched according to Lennox recommendations for the compressor to be covered under warranty. 11/2017 . com For the latest technical information, www. gov | HOME NOTE: Due to Lennox’ ongoing commitment to quality, features and options are subject to change without notice and without incurring liability. I walked through the Blower Control troubleshooting steps, and felt pretty confident that a relay on the blower control board (BCC) was bad. O/ B C G W1 Y1 R W2 R Y2 Y1 DS C G Y2 Y1 Typical One or Two-Stage Air Conditioning Unit M30 Thermosta t O ACC 2 C W3 W1 5 6 7 1 8 Lennox Air Handler Contro l 3 AIR HANDLER WITH 1 OR 2 STAGE AIR CONDITIONE R AND CONDENSATE OVERFLOW SWITC H 4 2 ACC 1 16 Tc To R2 D/ H W2 Y2 O/ B C G W1 Y1 R W2 R Y1 DS C G Y2 Y1 Typical Two-Stage Heat Pump Unit M30 3 Shipping and Packing List Quantity Description 1 iComfort® E30 smart thermostat includes a Smart Hub, HD Display, Mag-Mount and optional use wall plate. furnace is only 6years old, isn't that kinda soon for this type of failure? Yes, gas valves do not fail often, and this does seem sort of out of the ordinary. EL280UHE(X) Blower Relay Kit (for two-stage outdoor units) 85W66 85W66 85W66 iComfort® M30 Smart Wi-Fi Thermostat 15Z69 15Z69 15Z69 Remote Outdoor Temperature Sensor X2658 X2658 X2658 Twinning Kit 16W72 16W72 16W72 FILTER KITS 1 Air Filter and Rack Kit Horizontal (end) Size of filter - in. − Opens at 210 F or 150 psig (99 C or 1034 kPa). 0906-L2 CBX40UHV Service Literature Revised August, 2018 INSTALLATION AND SERVICE PROCEDURE CBX40UHV (HFC-410A) SERIES UNITS (Communicating) NOTICE A thermostat is not included and must be ordered separately. Coils previously charged with HCFC-22 must be flushed. 2 - Remove wiring to K149 relay. 7 - Plug in the harness terminal for K232-6 on terminal 6 of the relay. 2 - Remove the air handler access panel. The document has moved here. SPECIFICATIONS page 1 2016 lennox industries inc. 1007-L2 Revised August 2018 Service Literature INSTALLATION AND SERVICE PROCEDURE XC21 SERIES UNITS (iComfort®-ENABLED) NOTICE A thermostat is not included and must be ordered separately. Kit is not provided with coil blower; order separately. Box 799900 Dallas, TX 75379−9900 IMPORTANT The Clean Air Act of 1990 bans the intentional venting of refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992. 0626-L5 May 1, 2006 Revised June, 2019 XP16 Service Literature INSTALLATION AND SERVICE PROCEDURE XP16 (HFC-410A) SERIES UNITS WARNING Improper installation, adjustment, alteration, service or maintenance can cause personal injury, loss of life, or damage to property. For 208V, remove the red lead from the 240V terminal and connect it to the 208V terminal on the transformer. dallas, texas, usa heat pump units kits and accessories 507633-01 7/2016 replacement defrost control installation instructions for replacement defrost control kit (15d57) O−RING LIQUID LINE LIQUID LINE SCREEN Refrigerant Flow Control Choice Units are applicable to expansion valve syst ems or RFC refriger ant flow control systems. Refer to Engineering Handbook for proper sizing. c. Cat # : 12J17 Model/Part # : 104284-02 GAS FURNACES ML180UH MERIT® SERIES Upflow / Horizontal Bulletin No. pdf), Text File (. Connect the thermostat with Furnace 1, Furnace 2, and the DPST relay as shown in Figure 1 through Figure 3. RFCIV accurately meters refrigerant in system. The T-stat sitting in a timed wait state would prevent the Y line going high to signal compressor start, but the 24v should still be on the Red (R) and Blue (C) terminal points at the board. 000 to 110,000 Btuh and cooling applications up to 5 tons. trol relays to operate unit Builtin Functions Include: − Blower On/Off Delay − Builtin Control Parameter Defaults, ensure proper unit operation when power is restored after power failure − Service Relay Output − Defrost Control − Dehumidification Control − monitors humidity levels, will allow both heating Lennox Industries Inc. Single wall vent material shall have all seams and joints sealed with pressure sensitive aluminium tape or silicone rubber sealant. Corp. Failure to follow this notice could result in damage to roof surface. UNIT HEATERS Horizontal-60 HZ. Approved methods of recovery, recycling or Lennox 14B0501 Therm-O-Disc 15S2, Heat Sequencer Relay, 24V Coil, Class D, One Timing, 60 Seconds ON, 45 Seconds OFF. ©2017 Lennox Industries, Inc. conventional Lennox cleanup practices must be used. OPTION 1. I found that i needed more detail. Safety Switch Input - Normally-closed digital input allows the Prodigy 2. 506461-03. This unit offers a range of features, including high efficiency operation, variable air volume control, and the ability to operate with either R-22 or R-410A refrigerant. Three languages are supported (English, Français and Español), Air conditioning or heat pump units with up to four stages of heat / two stages of compressor operation (2 stages of heat pump heating, 2 stages of SEC. Slave Relay Panel(s) 4TwistedPair Cat 5 Cable with RJ45 Connectors at each end. 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT Indoor Blower Wheel nom. FOR UNIT Page 1 506457-01 10/2016 Supersedes 8/2013 PRODIGY® APPLICATION GUIDE Prodigy® Application Guide (Advanced Features) CAUTION To insure correct voltage phasing before startup: 1) use refrigerant pressure gauges to check proper compressor operation and, Nov 28, 2004 · I got a hold of a repair manual for the Lennox G23 models from a source on the internet. ) Air Handler Model Blower Speed . 33 0. The draw out relay with no chassis is also available to order as a spare unit. Residual mineral oil can act as an insulator, preventing proper heat transfer. A0. ©2017 Lennox Industries Inc. Page 1 2018 Lennox Industries Inc. Failure to do so can result in death or electrical shock. For more details, refer to page 17 for unit sequence of operation. Service Relay Output - Digital output can indicate a 1. Buy Lennox 72F83 Sequencer for your Lennox Furnace new from the technical experts. This is an advantage when the relays are inaccessible. Transformer 120V/24V transformer furnished as standard. The Code 276 on an icomfort thermostat is indicating it is in Watch Guard Mode with a calibration issue. PCC-1. It uses the ECG-1 CAT:73K7901 control board. Units are available in heating capacities of 44. Cat # : 14B05 Model/Part # : 14B0501 ter (POE) oils are used in Lennox units charged with HFC-410A refrigerant. Nevertheless, the relay may develop issues no matter how well you maintain it. Timing relays can be applied to almost any application, these are available as plug-in devices, base-mounted devices, circuit boards and even as DIN rail mounted controls. Improper installation, adjustment, alteration, service or maintenance Feb 12, 2009 · Output relay #7 is the Critical Failure relay, used to indicate the correct functioning of the NOTE: 345 relay. Relocate the control module and relay to the unit control box, see Fig. Lennox S40 Smart Thermostat. . WARNING To prevent personal injury, as well as damage to panels, unit or structure, observe the following: 10/2012 506757-01 (0659371-80) Page 1 2012 Lennox Industries Inc. Neither worked. Not a member? Register in 3 easy steps, today! Access to pricing and ordering Exclusive promotions Exclusive HVAC eTools Control board contains all necessary controls and relays to operate unit. 2 HACR type circuit breaker or fuse. 500 108. A Lennox communicating thermostat must be used in communicating applications. Apr 10, 2025 · Lennox furnace owners often encounter common issues and have questions about troubleshooting their units. 210590 April 2019 Supersedes October 2018 AFUE - 80% Input - 44,000 to 132,000 Btuh Nominal Add-on Cooling - 2 to 5 Tons ©2018 Lennox Industries Inc. We would like to show you a description here but the site won’t allow us. lennox. Normally the O output is open and B output at 24VAC during heating calls. 2ea#18AWG 2ea#18AWG Jul 7, 2018 · Thanks again for the guidance. 125 2. Either the pilot relay contacts did not close or the relay coil did not energize. With relay de-energized 24VAC is present on O terminal. 875 97. So 24v should always be at the board, and that 24v comes from the transformer in the AH. O Heat pump reversing valve (24VAC = cool) Used as reversing valve output for heat pumps. Normal Heat Sequence. 4 - Remove existing fan power harness and discard it. Table 1: Protection Elements. 25” pan head) - Mag-Mount requires 4 and Smart Hub 2. In the years since, we have grown and developed a complete line of products and services for the protection, monitoring, control, automation, and metering of electric power systems. 2 2. 87L96 - 18 x 25 x 1 87L97 - 20 x 25 x 1 87L98 - 25 x 25 x 1 Service Relays R + C Spare Analog Inputs Room and RH Sensors Sensor IAQ TX J358 Duct Sensor J378 4-Character Seven Segment LED J379 J380 J381 J382 J383 J384 J385 J298 J297 J299 Sensor IAQ A11 HUM TMP Sensor Inputs A12 C R White Push Button Black Push Button Service Relays P5 S-BUS Factory Test P2 Expansion Card Connection (C4) Jul 3, 2020 · of this lockout relay: 345 kV transmission line for Substation A–Substation B–Substation C 345 kV transmission line for Substation A–Substation D 345/161 kV transformer A-T1 at Substation A Field personnel were dispatched to Substation A to investigate in response to this event. Jan 15, 2023 · Heat section / Stage 1 failed (Pilot relay contacts did not close or the relay coil in the electric heat section did not energize). Normally the O output is open and B out-put at 24VAC during heating calls. CHANGE BLOWER SPEED 1 - Disconnect all power supplies. Setpoint group 2 can be activated by programming the conditions under S4 Control/Change Setpoint Group menu. ) After changes have been made, use save to store the changed data or cancel to exit the View and Download Lennox EL16XC1-036-230A01 manual online. DO NOT discard the wiring. The EIM uses a single-pole dual throw relay to generate O and B signals. Approved methods of recovery, recycling or reclaiming must be followed. Dallas, Texas, USA CONTROLS . Relays are exposed to high current loads and can sometimes get hot when they develop problems. Plug in one wire from the other end to terminal 7 on the K220 relay and connect the remaining wire to the float switch (S149). Route the control wires to unit terminal block (TB1) and connect these wires to TB1 as follows (see Fig. (IA/ICTL/IAC) [60] field relay (power system device function numbers) A relay that functions on a given or abnormally low value or failure of machine field current, or on an excessive value Belt Drive (standard efficiency) - 7. Interlock relay is energized, but input is not sensed after three seconds. 7): • Connect all female terminals to TB1 - Pink (24V) to R; We would like to show you a description here but the site won’t allow us. Firmware Version . Ment to say gas valve relay on the board. See also: relay. transformer power H 24VAC humidifier signal output. 1 SECOND DELAY OFF 100% CFM 100% CFM 45 SECS COOLING DEMAND 1 2 34 Table of Contents CBA25UH Unit Dimensions – Upflow This heat kit includes a transformer and relay assembly. Not gas valve, but control boards are prone to damage from storms and power surges 2. PCC-3, 3 Input Photocell Card could also be mounted in the nearest relay panel. This wire was removed from relay K10 and now to be wired to head pressure control. 410# SPST, 44A97. 2. How can I obtain a copy of the Lennox furnace troubleshooting manual? Contact your local Lennox dealer or visit the official Lennox website. Single Input Photocell Card or. Thermostat closes R to W on call for heat. This output relay shows the status "ON" when the 345 relay is powered up and NOTE set to "Ready" and no self-test alarms are active, under SETPOINTS > S1 RELAY SETUP > S1 INSTALLATION > RELAY STATUS. Stage 2 1 - Install 24V power harness, A193 controller (ICM33) –A193-24V and A193-COM, to TB14-R and TB14-C. Aluminum tape must meet the provisions of SMACNA AFTS−100−73 Standards. A misapplied system will cause erratic operation, can result in early failure of compressor or other components, and could affect the warranty. 3 - Locate pin number 2 on the blower relay. − Protects system components from premature failure caused by pressure cycling. FIGURE 1 AFFIX WIRE MARKERS - CAMSTAT RELAY 28G2701 13 24 HH G 2 GCS16-823/1603 Units HH G 2 GCS24-1353 & 1603 Units AFFIX WIRE MARKERS GCS16-1853/3003 Units AFFIX WIRE MARKERS 12 Ignitor Relay Failure Indicates the Ignitor relay contacts on the ignition module are not functioning properly. Traditionally, timing relays were available only as single-function, single-time-range devices. 24VAC input uses a 3A fuse (Lennox part number 25J49. I thought about the short cycling and turned the power off to the furnace, waited a while, and turned it back on. Due to its efficiency, the scroll compressor is capable of draw-ing a much deeper vacuum than reciprocating compressors. (Refer to figures 4 and 5 for the harness to be discarded. Make sure there are "terminators" at each end of the bus. 0 unit controller to respond to a external safety switch trip (phase protector, low voltage, etc. The transformer is factory-wired for 240V. In addition to conforming to manufacturer's installation instructions and local municipal building codes, installation of Lennox air handler units (with or without optional electric heat), shall conform with the following National Fire 345 - Free ebook download as PDF File (. − Located on top of water tank. Relay O Failure. See figure 1 for Camstat relays and figure 2 for HD1 relays. 3. On automatic reset after tripping the relay, contacts will automatically reclose when the relay has cooled down. Page 253: M3 Breaker Maintenance The 345 protection relay chassis used with a draw out relay is available separately, for use as a partial replacement or in test environments. A Lennox communicating thermostat must be used in communicating applications (CBX40UHV-XXX-230-6 Integrated Modular Control (IMC) — Solid-state board contains all controls and control relays to operate unit Built-in Functions Include: - Blower On/Off Delay - Built-in Control Parameter Defaults, ensure proper unit operation when power is restored after power failure - Service Relay Output - Defrost Control fied in Lennox Engineering Handbook. E347 The Y1 relay on the air-handler has failed. tm 9-2320-363-24p i technical manual headquarters tm 9-2320-363-24p department of the army washington, d. Page 253: M3 Breaker Maintenance relay 345 - Free ebook download as PDF File (. FOR UNIT Moved Permanently. KITS AND ACCESSORIES. Two black wires are connected to this terminal pin. The 345 relay has two identical setpoint groups, with the same set of protection elements. Includes: Fan timer control - fan on 45 seconds (fixed), fan off 150 seconds (fixed), terminal strip for thermostat connections, diagnostic LED for troubleshooting, continuous fan operation. ELECTROSTATIC DISCHARGE (ESD) Precautions and The O relay on the system component has failed. The economizer control module, relay and harness are located next to actuator for shipping. Coils previous­ ly charged with HCFC-22 must be flushed. One connects to pin number 5 on the blower relay, one connects to an in-line splice connecting O Heat pump reversing valve (24VAC = cool) Used as reversing valve output for heat pumps. 500 91. Lennox 67K6501, Relay, Flange Mount, DPDT, 24 VAC Coil, 15 Amp Page 1 TROUBLESHOOTING FOR UNITS EQUIPPED WITH THE LENNOX BLOWER DRIVE 508106-01 10/2020 GAS UNITS KITS AND ACCESSORIES 2020 WARNING Improper installation, adjustment, alteration, service or This unit has a delay relay that delays the supply blower “ON” for 1 second and keeps the blower “ON” for 45 seconds on all fan and cooling demands. W. 3 - Remove K149 relay, 56L6801, and replace with one of the relays provided, 67K6501. , Varied Sequence, 24 Volts. SKU: Refer to the Lennox Refrigerant Piping Manual to determine refrigerant charge required with longer length refrigerant lines. IMPORTANT The Clean Air Act of 1990 bans the intentional vent-ing of refrigerant (CFC’s and HCFC’s) as of July 1, 1992. Relay. By default setpoint group 1 will be active. 34 5. Installation and service must be performed by a licensed professional HVAC installer (or equivalent), service agency or the gas supplier. 08 Breaker Failure Pickup Delay 6. Page 1 506457-01 10/2016 Supersedes 8/2013 PRODIGY® APPLICATION GUIDE Prodigy® Application Guide (Advanced Features) CAUTION To insure correct voltage phasing before startup: 1) use refrigerant pressure gauges to check proper compressor operation and, Nov 28, 2004 · I got a hold of a repair manual for the Lennox G23 models from a source on the internet. Normally the O output is open and B output Nov 3, 2020 · Purchased off Amazon and was listed as in new condition Jan 22nd. During cooling calls O is 24VAC and B open. rtoo avdkb zlye uefmw eyqek sxtes lbimpk zuqtqlik fkzn jsrg