Related Manuals for Lennox FCM 85
Summary of Contents for Lennox FCM 85
- Page 1 Installation, operating and maintenance FLEXY FCM/FHM/FGM/FDM FWH/FWM Air cooled and water cooled rooftop packaged units 85 > 234 kW FLEXYII WSHP-IOM-1307-E lennoxemeia.com...
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Page 3: Table Of Contents
TABLE OF CONTENTS INSTALLATION OPERATION MAINTENANCE MANUAL Ref. FLEXYII_WSHP-IOM-1307-E IMPORTANT NOTICE - Safety Instructions ....................... 2 TRANSPORT - HANDLING - WARNING ......................5 Delivery checks .............................. 5 Rating plate ..............................5 Storage ................................5 Maintenance key ............................5 Condensate drain ............................5 Mandatory handling devices ........................... -
Page 4: Important Notice - Safety Instructions
The present manual applies to the following ROOFTOP versions: FCM 85 - FCM 100 - FCM 120 - FCM 150 - FCM 170 - FCM 200 - FCM 230 FHM 85 - FHM 100 - FHM 120 - FHM 150 - FHM 170 - FHM 200 - FHM 230... - Page 5 · In order to maintain CE marking compliance, replacement of components shall be carried out using spare parts, or using parts approved by Lennox. · Only the coolant shown on the manufacturer’s nameplate shall be used, to the exclusion of all other products (mix of coolants, hydrocarbons, etc.).
- Page 6 IMPORTANT NOTICE – Safety instructions LIGHT - The UV lamp emits shortwave UV-C ultraviolet radiation which is harmful to skin and eyes - It can cause serious skin burns and eye inflammation within ONE SECOND of exposure Do not enter the machine while UV are switched on Make sure the UV light circuit breaker is OFF when opening the return air section door and the supply air section doors The following logo will appear to inform about the UV-C radiation risk FLEXYII_WSHP-IOM-1307-E...
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Page 7: Transport - Handling - Warning
This 48 hours of delivery (working days). A copy of the letter allows you to open the panels for maintenance and must be addressed to Lennox and the supplier or installation work. distributor for information purposes. Failure to comply will The locks are ¼... -
Page 8: Mandatory Handling Devices
TRANSPORT – HANDLING MANDATORY HANDLING DEVICES Handling slings to guide the unit towards the roofcurb Vacuum lifting beam to position the unit NON-COMPLIANT COMPLIANT FLEXYII_WSHP-IOM-1307-E - 6 -... -
Page 9: Dimensions And Weights
TRANSPORT – HANDLING DIMENSIONS AND WEIGHTS F & G BOX H BOX FLEXY2 FCM/FHM/FGM/FDM View (F, G, H box) F BOX F BOX F BOX G BOX G BOX H BOX H BOX 2200 2200 2200 2200 2200 2200 2200 3350 3350 3350... - Page 10 TRANSPORT – HANDLING DIMENSIONS AND WEIGHTS LENGTH HEIGHT WIDTH HOOD WEIGHT Side Standard FXM025 4070 1635 1055 FXM030 4070 1635 1055 FXM035 4750 2255 1290 1400 FXM040 4750 2255 1290 1450 FXM055 4750 2255 1290 1600 FXM070 5050 2255 1725 1800 FXM085 5050...
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Page 11: Lifting The Units
TRANSPORT – HANDLING LIFTING THE UNIT As shown on the picture below, a lifting frame is necessary. After lifting, withdraw angle’s feet and lifting lugs. FLEXYII_WSHP-IOM-1307-E - 9 -... -
Page 12: Installation
INSTALLATION FORKLIFT PROTECTIONS NEVER LIFT THE UNIT WITHOUT FORKLIFT PROTECTIONS REMOVE THE FORKLIFT PROTECTIONS INSTALLATION REQUIREMENTS BEFORE INSTALLATION The surface on which the equipment is to be installed must be clean and free of any obstacles which could hinder the PRELIMINARY CHECKS flow of air to the condensers: -Avoid uneven surfaces... -
Page 13: Minimum Clearance Around The Unit
INSTALLATION MINIMUM CLEARANCE AROUND THE UNIT Figure 4 shows the required clearances and service access around the unit. NOTE: Ensure the fresh air inlet does not face prevailing wind direction. FCM/FHM/FGM/FDM/FWH/FWM 2200 2000 2000 2000 F BOX G BOX 2700 2000 2000 2000... -
Page 14: Duct Connections
DUCT CONNECTIONS RECOMMENDATIONS FOR DUCTS CONNECTIONS Some rules must be complied with for the connections between ducts and unit done on site. Whatever the supply configuration is, respect a minimal duct’s length (D) of 2m before any elbow or any duct’s diameter change. -
Page 15: Water Condensing (Water Source Heat Pump Only)
WATER CONDENSING WATER SOURCE HEAT PUMP ONLY Water connections The water circulating pump will be preferably installed upstream so that the evaporator/condenser will be subjected to positive pressure. Inlet and Outlet water connections are indicated on the certified drawing sent with the unit or shown in the sales brochure. -
Page 16: Antifreeze
To drain the circuit, the drain cocks must be opened and an air inlet ensured. Note : air bleeders are not designed to admit air. EVAPORATOR FREEZING DUE TO COLD WEATHER CONDITIONS IS NOT COVERED BY LENNOX WARRANTY. Minimum water content The minimum volume of the rooftop water circuit must be determined. - Page 17 WATER CONDENSING It is imperative to tighten the nuts evenly to avoid pinching the gasket. FLEXYII_WSHP-IOM-1307-E - 15 -...
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Page 18: Water Loop Configuration
WATER CONDENSING WATER LOOP CONFIGURATION (FOR WATER SOURCE HEAT PUMP) Figures below show the 2 water configurations. Figure 1 indicates all components used as standard : · the electronic water flow switch, · the water filter, · the pressure taps and drain valves, ·... -
Page 19: Pressure Loss
WATER CONDENSING CAUTION: The water circuit may be pressurised. Observe the usual precautions when depressurising the circuit before opening it. Failure to observe these rules could lead to accidents and cause injury to service personal. Pressure Loss - Heat plate Exchanger Water flow (m3/h) Pressure Loss - WATER FILTER 10.0... -
Page 20: Installation Of A Roof Mounting Frame
INSTALLATION ON A ROOFMOUNTING FRAME CAUTION: An approach ramp must be installed if the unit’s installation requirements tell that it's necessary to reach the main switch. This recommendation is valid for installations in general and in particular for return and curbs. It’s also valid to reach other parts of the unit: filters, refrigerant circuit, etc…... -
Page 21: Curbing And Flashing
INSTALLATION ON A ROOFMOUNTING FRAME When the frame is correctly positioned, it is essential to secure the assembly with a disconnected stitched welded seam (20 to 30mm every 200mm ) along the outside or by using an alternative method CURBING AND FLASHING Outside of frame must be insulated with rigid type insulation;... -
Page 22: Non-Adjustable Non-Assembled Roof Curb Installation
INSTALLATION ON A ROOF MOUNTING FRAME NON ADJUSTABLE NON ASSEMBLIED ROOFCURB INSTALLATION FRAME PARTS IDENTIFICATION Figure 8 shows the different parts used in the assembly of this roof mounting frame. INSTALLATION The roof mounting frame provides support when the units are installed in down-flow configurations. The non adjustable, non assembled roof mounting frame can be installed directly on decks having adequate structural strength or on roof supports under deck. -
Page 23: Spare Parts
TRANSITION CURB This roof curb will arrive as a packaged on a pallet and need to be built together. The part will be connected by special corrosion free nails. It is not possible to connect with standard nail equipment because there is a lot of power needed. -
Page 24: Energy Recovery Installation
ENERGY RECOVERY INSTALLATION All units * F & G STEP 1 : Rooftop configuration Dimensions SIZE Weight F-box 85-100-120 2146* 2063 1422 1796 525 kg G-box 150-170 2330* 2247 1518 2170 635 kg H-box 200-230 2516 2497 1676 2418 730 kg FLEXYII_WSHP-IOM-1307-E - 22 -... - Page 25 COMMISSIONNING STEP 1 : Rooftop configuration No Hood No panel Remove lifting lug Remove corner sheet metal STEP 2 : Lifting FLEXYII_WSHP-IOM-1307-E - 23 -...
- Page 26 COMMISSIONNING STEP 3 : Fitting STEP 4 : Check SAME LEVEL 10-15 mm FLEXYII_WSHP-IOM-1307-E - 24 -...
- Page 27 COMMISSIONNING STEP 5 : Fixing H-box : for each side : § H : 10 x Ø4.8x32mm 5-10 mm F & G-box : for each side : § F : 8 Ø4.8x25mm G : 8 FLEXYII_WSHP-IOM-1307-E - 25 -...
- Page 28 COMMISSIONNING On top : § F : 13 G : 15 x Ø4.8x25mm H : 15 STEP 6: Masticate Apply mastic on side junctions and higher junction. FLEXYII_WSHP-IOM-1307-E - 26 -...
- Page 29 COMMISSIONNING STEP 7: Electrical wiring The Recovery module is sent with a power cable and a T-lan cable : Modbus cable Power cable Separate these 2 cables (communication and power ones) using the two holes. FLEXYII_WSHP-IOM-1307-E - 27 -...
- Page 30 COMMISSIONNING Then fix the 2 cables on the grid of the extraction roofcurb and insert them in rooftop electrical panel : Communication power cables from the module should be separated. FLEXYII_WSHP-IOM-1307-E - 28 -...
- Page 31 COMMISSIONNING Then connect the power cable from the module to the rooftop, and the Modbus cable according to the bus connection wiring diagram (it could be connected to the BE60 (A1) connector in electrical rooftop panel or other options with bus communication). Extraction roofcurb connection Recovery module connection Actuator roofcurb connection...
- Page 32 COMMISSIONNING STEP 8: Roof curb economiser Adjustment With Heat Recovery module option the extract air goes through the wheel, that’s why the economiser of the roofcurb has to be permanently fully closed. If roofcurb economiser is not fully closed, close it manually.
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Page 33: Service Manual
TABLE OF CONTENTS SERVICE MANUAL COMMISSIONING Commissioning report ............................. 32 Refrigerant transaction logbook ........................35 Economiser and extraction ..........................38 Before starting the unit ........................... 39 Starting the unit .............................. 40 Run test ................................41 VENTILATION Belt tension..............................42 Mounting and adjusting pulleys.................. -
Page 34: Commissioning Report
COMMISSIONNING REPORT Site details Controller …………………………………. Site ……………………………………… Model ……………….………………… Unit Ref ……………………………………..Serial No ………………………………… Installer ……………………………………… Refrigerant ………………………………… (1) ROOF INSTALLATION Sufficient Access OK Condensate drain fitted Roofcurb Not OK (2) CONNECTIONS CHECK Phase check 1 / 2 2 / 3 1 / 3 Voltage between Phases... - Page 35 COMMISSIONNING REPORT ……………..% (8) REFRIGERATION SECTION Outdoor Fan Motor Current: Check Rotation Compressor Voltage Motor 1 / Moteur 1 L1 ……..A L2 ……..A L3 ……A Comp1: …….. V Motor 2 / Moteur 2 L1 ……..A L2 ……..A L3 ……A Comp2: …….. V Motor 3 / Moteur 3 L1 ……..A L2 ……..A...
- Page 36 COMMISSIONNING REPORT COMMENTS: ..................................................................................................................................................................................................................................................………….……………………………………………………………………………………………………………………………............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................FLEXYII_WSHP-IOM-1307-E - 34 -...
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Page 37: Refrigerant Transaction Logbook
REFRIGERANT TRANSACTION LOGBOOK General information Site name: Serial Number: Site address: Site operator: Cooling load : Refrigerant type: Refrigerant quantity (kg) Unit manufacturer Year of installation Refrigerant additions Date Engineer Quantity (kg) Reason for addition Refrigerant removal Date Engineer Quantity (kg) Reason for removal FLEXYII_WSHP-IOM-1307-E - 35 -... - Page 38 REFRIGERANT TRANSACTION LOGBOOK Leak tests (part 1) Date Engineer Test Result Follow up action required Follow up actions Date Engineer Related to test dated Action taken FLEXYII_WSHP-IOM-1307-E - 36 -...
- Page 39 REFRIGERANT TRANSACTION LOGBOOK Testing of automatic leak detection system (if fitted) Date Engineer Test result Comments Refrigerant load according to model size Cooling only units Heat pump units Number of Refrigerant Model Load (kg) Load kg circuit (BAC BAG) (BAH BAM) R410A 10,5 10,5...
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Page 40: Economiser And Extraction
ECONOMISER AND EXTRACTION ECONOMISER Free cooling is provided through the use of fresh air which is more appropriate than excessive cooling amounts of return air. The economiser is factory fitted and tested prior to shipment. It includes two dampers operating from a 24V actuator RAIN HOOD It also includes a factory fitted rain hood. -
Page 41: Before Starting The Unit
COMMISSIONING BEFORE STARTING THE UNIT THIS WORK MUST ONLY BE CARRIED OUT BY TRAINED REFRIGERATION ENGINEERS FILL THE COMMISSIONNING SHEET AS YOU GO ALONG ELECTRICAL CONNECTIONS - Ensure that the power supply between the building and the unit meets local authority standards and that the cable specification satisfies the start-up and operating conditions. -
Page 42: Starting The Unit
COMMISSIONING STARTING THE UNIT Check and adjust the control settings. At this point the unit circuit breakers should be open Refer to the control section in this manual to adjust the You will need a DS60 maintenance controller. different parameters. POWERING THE UNIT - Power up the unit by closing the isolator switch. -
Page 43: Run Test
COMMISSIONING Reverse cycle test This test is designed to check the good operation of the 4- RUN TEST way reversing valves on heat pump reversible systems. Start Start unit in cooling mode the reverse cycle by adjusting the cold or hot temperature threshold data according to the indoor and outdoor conditions at the time of test (menu 2222). -
Page 44: Belt Tension
VENTILATION : BELT TENSION BELT TENSION On delivery, the drive belts are new and correctly tensioned. After the first 50 operating hours check and adjust the tension. 80% of the total elongation of belts is generally produced during the first 15 hours of operation. Before adjusting the tension, make sure that the pulleys are correctly aligned. -
Page 45: Mounting And Adjusting Pulleys
VENTILATION : PULLEYS MOUNTING AND ADJUSTING PULLEYS AN PULLEY REMOVAL Remove the 2 screws and put one of them in the extraction threaded screw. Screw in fully. The hub and the pulley will separate from each other. Remove the hub and the pulley by hand without damaging the machine. -
Page 46: Airflow Balancing
VENTILATION : AIRFLOW BALANCING The actual resistance of ductwork systems is not always identical to the calculated theoretical values. To rectify this, it may be necessary to modify the pulley and belt setting. To this effect, the motors are fitted with variable pulleys. SITE TEST AND MAINTENANCE Measure the motor absorbed power. - Page 47 VENTILATION : AIRFLOW BALANCING method when adjusting the pulley : CHECKING AIRFLOW AND ESP -Close the pulley fully and count the number of turns from fully closed position. Using table_1 determine the Using the fan curves on page 36 to 40, the airflow, the total motor pulley actual diameter.
- Page 48 VENTILATION : AIRFLOW BALANCING EXAMPLE The unit used for this example is a FGM170ND with standard supply and return airflow configuration. It is also fitted with an economiser and an electric heater type H. It is fitted with 2 ADH450 L fans which curve is shown on previous page and 2x 5.5 kW motors.. Motor rpm: 1465 rpm - cosj = 0.79 - Voltage = 400V...
- Page 49 VENTILATION : AIRFLOW BALANCING AT15-15G2L(*) (*) The performances of twin fan units can be calculated starting from the corresponding operation point for a single fan (see the figure behind) by applying the formulas below. - pressure : PTwin = P x 1 - volume flow rate : Qb = Q x 2 - impeller power: Wb = W x 2,15 - fan speed : Nb = N x 1,05...
- Page 50 VENTILATION : AIRFLOW BALANCING AT18-18S FLEXYII_WSHP-IOM-1307-E - 48 -...
- Page 51 VENTILATION : AIRFLOW BALANCING ADH355L FLEXYII_WSHP-IOM-1307-E - 49 -...
- Page 52 VENTILATION : AIRFLOW BALANCING ADH450L FLEXYII_WSHP-IOM-1307-E - 50 -...
- Page 53 VENTILATION : AIRFLOW BALANCING ADH500L FLEXYII_WSHP-IOM-1307-E - 51 -...
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Page 54: Filters
FILTERS ILTER REPLACEMENT After opening the filter access panel, lift the filter retaining log. The filters can then be removed and replaced easily by sliding the dirty filters out and clean ones in. The CLIMATIC controller monitors the pressure drop across the filter. The following set points can be adjusted depeding on the installation. -
Page 55: Air Sock Control
VENTILATION : AIR SOCK CONTROL AIR SOCK CONTROL ANSTART OPERATION The use of air socks for space conditioning allows high air volumes to be distributed at low velocity and is becoming a common feature in many applications. To accommodate this trend, Air-sock control is offered which allows the air socks to be progressively filled with air on start up. -
Page 56: Uv Light
VENTILATION : UV lights UV LIGHT UV light option allows to kill bacteria living on the fin. The UV lamp emits shortwave UV-C ultraviolet radiation which is harmful to skin and eyes It can cause serious skin burns and eye inflammation within ONE SECOND of exposure Do not enter the machine while UV are switched on Make sure the UV light circuit breaker is OFF when opening the return air section door and the supply air section doors... -
Page 57: Refrigeration Circuit
REFRIGERATION CIRCUIT Electronic expansion valve 2 electronic valves types can be fitted on FlexyII (ASHP only if the option is selected or in Flexy EC) F box G box Hbox Model designation Reference E3V45 E3V45 E3V45 E3V45 E3V45 E3V55 E3V55 EEV adjustments EEV allows to control superheat in biflow operation (see climatic 60 sections). -
Page 58: Advanced Scroll Temperature Protection (Astp)
ADVANCED SCROLL TEMPERATURE PROTECTION (ASTP) PERATION XPLANATION ERVICE A OMPRESSOR Protection is activated when Scroll Discharge Port. What to do? · If a protected compressor is identified Reaches 150°C (+/- 17K) - Stop the compressor Compressor is protected as « Unloaded » but - Allow to cool thoroughly continues to run - Restart pump &... -
Page 59: Hot Water Coils
HEATING : HOT WATER COIL FREEZE PROTECTION HYDRAULIC CONNECTIONS 1) Glycol for freeze protection. Hot water coils offer fully modulating control through the Check the hydraulic system contains Glycol for protection use of a 3 way valve. The hot water coil, connections and against freezing. - Page 60 HEATING : HOT WATER COIL Hot water coil connection F-G-H box Pipe Internal Diameters (DN) F085 F100 F120 F150 F170 F200 F230 AXIMUM ORKING RESSURE BARS : 110°C AXIMUM WORKING TEMPERATURE FLEXYII_WSHP-IOM-1307-E - 58 -...
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Page 61: Electric Heater
HEATING : ELECTRIC HEATER ENERAL NFORMATIONS The electric heater comprises of shielded resistance heaters, which are smooth stainless steel tubes 6 W/cm2 capacity. High temperature limit control offers overload protection and is set to 90°C and located at less than 150mm after electric heaters. -
Page 62: Gas Burners
HEATING : GAS BURNER PRELIMINARY CHECKS BEFORE START-UP GAS FLOW (for G20 at 20mbar and 15°C) m UNIT SIZE NOTE : S POWER 12.5 12.5 18.8 18.8 H POWER 12.5 12.5 12.5 18.8 18.8 ANY WORK ON THE GAS SYSTEM MUST BE CARRIED OUT BY QUALIFIED PERSONNEL. - Page 63 HEATING : GAS BURNER 60 & 120 kW PRESSURE ADJUSTMENTS ON HONEYWELL PRESSURE REGULATING VALVE TYPE VK 4125 P Pressure regulator adjustment with 300mbar gas supply: Fig.16 High Heat Injection Pressure Checks Check and adjust if necessary the valve OUTLET pressure to 10.4mbar (G 20) / 13.1mbar for Groningen (G25) &...
- Page 64 HEATING : GAS BURNER 60 & 120 kW Low Heat Injection Pressure Checks - After the adjustment of the low heat, re-verify the high - Switch the control to Low Heat heat - Check and adjust if necessary the Outlet pressure to 3.7 - re-position the stoppers and close the pressure ports.
- Page 65 HEATING : GAS BURNER 180 & 240kW PRESSURE ADJUSTMENTS HONEYWELL PRESSURE REGULATING VALVE TYPE VR 4605P Pressure regulator adjustment with 300mbar gas supply: Fig.20 High Heat Injection Pressure Checks Check and adjust if necessary the valve OUTLET pressure to 8.0mbar (G 20) / 10.4mbar for Groningen (G25) & 28.3 mbar for propane (G31) (fig.21) - The Burner must run in High Heat mode for this check.
- Page 66 HEATING : GAS BURNER 180 & 240kW Low Heat Injection Pressure Checks - After the adjustment of the low heat, re-verify the high - Switch the control to Low Heat heat - Check and adjust if necessary the Outlet pressure to 3.1 - re-position the stoppers and close the pressure ports.
- Page 67 HEATING : GAS BURNER Ionisation Probe test BURNER SAFETY CHECKS - With the gas burner running, disconnect the terminal plug Smoke extractor pressure switch Test. coming from the ionisation probe to the gas ignition control box. - With the gas burner running, disconnect the flexible tube fitted to the pressure taping on the pressure switch (Fig.
- Page 68 HEATING : GAS BURNER GAS BURNER FIRE-UP SEQUENCE Operation from control thermostat GAZ =Closed Supply Thermostat Limit? (Auto Reset) Gas Low Pressure Gas Ignition Control Block Signal Extraction Fan ON AIR Pressure Switch ON Backfire Thermostat Pre-Ventilation 30 seconds Gas Control Fire-up Electrode 4s Valve Closes BURNER...
- Page 69 HEATING : GAS BURNER GAS BURNER TROUBLESHOUTING If faults reported on CLIMATIC -Reset the CLIMATIC. -Check voltage: 230V after circuit breaker. -Check GAS isolation shut-off valves are open. -Check GAS pressure at the inlet of the GAS valves. It must be >20 mbar when the Burners shut down. -Adjust the set points to priorities the burner.
- Page 70 HEATING : GAS BURNER DISASSEMBLING THE GAS BURNER FOR Disassembling the flue MAINTENANCE PURPOSES - Electrically disconnect the fan and remove the screws holding it in place. Preliminary Safety Recommendations -Take care not to loose any cage nuts in the smoke box. - Isolate the unit using the main isolator switch.
- Page 71 HEATING : GAS BURNER 60kW 120kW FLEXYII_WSHP-IOM-1307-E - 69 -...
- Page 72 HEATING : GAS BURNER 180kW 240kW FLEXYII_WSHP-IOM-1307-E - 70 -...
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Page 73: Control Variables
CONTROL VARIABLES Function The Climatic 60 has free inputs / outputs on the main board BM60 and the expansion board BE60 to offer different possibilities to customize input / output for remote control of the unit. Description Free customized inoputs / outputs number depends on added option. Without any option, expansion board BE60 is available with DCBO option. - Page 74 CONTROL VARIABLES Digital inputs (dry contacts) Maximum 2 free input contacts on BM60 : BM-J4-ID4 Not always available BM-J4-ID7 Not always available Maximum 4 free input contacts on BE60 BE-J4-ID1 always available BE-J4-ID2 always available BE-J4-ID3 always available BE-J4-ID4 always available Functions can be set among followings: Power Power of the unit (ON/OFF)
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Page 75: Maintenance Diagnostic
MAINTENANCE DIAGNOSTIC REFRIGERATION FAULT POSSIBLE CAUSE AND SYMPTOMS SOLUTION Measure the superheat and sub-cooling Good if 5°C<SC<10°C and 5°C<SH<10°C Refrigerant charge too low Bad if SC>10°C and SH too low Check superheat adjustment and charge unit (a leak check must be carried out) In Heat Pump Mode the temperature difference between T outdoor and Tevap. - Page 76 MAINTENANCE DIAGNOSTIC REFRIGERATION FAULT POSSIBLE CAUSE AND SYMPTOMS SOLUTION Heat pump mode: Check the filter before the indoor coil measure and estimate the airflow rate Incorrect airflow rates increase the speed of the fan Cooling mode: Check the condenser fan (Amps) Incorrect water flow rate (Water cooled Check water flow value rooftop only)
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Page 77: Indoor Fan Blower
MAINTENANCE DIAGNOSTIC INDOOR FAN BLOWER FAULT POSSIBLE CAUSE AND SYMPTOMS SOLUTION Reduce the rotation speed of the fan Pressure drop in the ducting installation Measure and estimate the airflow and High amps on action Fan motor too low. pressure and compare with the specification from customer. -
Page 78: Water Leaks
MAINTENANCE DIAGNOSTIC WATER LEAKS FAULT POSSIBLE CAUSE AND SYMPTOMS SOLUTION Cooling mode: Water carried away from the coil because Estimate the airflow rate and check of excessive airflow and speed on the the speed is lower than 2.8 m/s coil. Low air pressure in the compartment due Water found in the ventilation Check filter... -
Page 79: Maintenance Plan
It is recommended to keep a minimum stock of common replacement parts in order to be able to carry out regular maintenance operations (i.e. filters). You can contact your local Lennox representative which can assist you in establishing a parts list for each type of equipment. - Page 80 MAINTENANCE PLAN Task Operating mode Replace filters with new ones if disposable. Vacuum clean or blow the dirt. Wash and dry carefully. Clean or replace filters : Replace media if necessary. disposable or metal frame Blocked filter will reduce the performance of the unit. THE UNIT MUST NOT OPERATE WITHOUT FILTERS.
- Page 81 MAINTENANCE PLAN Task Operating mode Install manifold gauges on the circuit to be checked. Shut down the axial fans and wait for the HP switch to shut down the compressor : 29 bar (+1/-0) auto reset 22 Check HP/LP safety switches bar (+/- 0,7).
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Page 82: Spare Part List
SPARE PART LIST Refrigeration Designation Familly Code components ZP154KCE 4220431T Compressor ZP182 KCE Compressor 4220432V ZP235 KCE 4220433W ID Fbox 4310442L INDOOR coil ID Gbox Coil 4310443M ID Hbox 4310472H OD Fbox 4310445P OD Fbox 4310446R OD Gbox 4310447T OUTDOOR coil Coil OD Gbox 4310448V... - Page 83 SPARE PART LIST Outdoor fans Designation Familly Code FE071 4921080K Axial fan A6D800-AU0101 F-G box 4921099M A6D800-AU0101 Hbox 4921098L Electrical & control Designation Familly Code components Main control board BM60 medium 4770702P CLIMATIC Main control board BM60 medium 4770708Y Ntc -50+105 7 meters 4770721T Sensors Ntc -50+105 3 meters...
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Page 84: Warranty
ANTI-CORROSION WARRANTY 10 year warranty terms and conditions for corrosion to the Rooftop casing: Lennox shall guarantee the casing of its Rooftop units manufactured since May 1991 against corrosion for 10 years commencing from the date of delivery of the material. -
Page 85: Control Manual
CERTIFICATES CONTROL MANUAL DISPLAY DC60 INSTALLATION ............................84 CONNECTION ............................84 IMPORTANT WARNING ............................85 ONE 'DC60' FOR ONE, AND ONLY ONE, ROOFTOP ................86 TEMPERATURE MEASUREMENT ......................86 RELATIVE HUMIDITY MEASUREMENT ....................86 CONFIGURATION ........................... 87 INITIALIZATION ............................88 PRESENTATION ............................. -
Page 86: Display Dc60
DISPLAY DC60 The display DC60 is personalized for the user. It allows an overview of operation of the unit and allows access to certain parameters. The 'DC60 is designed to be remote connected of the rooftop. The 'DC60 is equipped with a temperature sensor. The temperature sensor allows the acquisition of room temperature to control. -
Page 87: Important Warning
The power of the DC60 can be 24Vac (+10…-15%) 50/60Hz or 24Vdc (22…35Vdc), maximum current of 2VA. LENNOX recommends a 24Vac supply (provided by rooftop) for installation of the display less within 30 meters of rooftop. For connection of the display of over 30 meters, a power supply, close to the display, 24Vac must be provided by the installer. -
Page 88: One 'Dc60' For One, And Only One, Rooftop
TEMPERATURE MEASUREMENT All LENNOX rooftop comes with a temperature sensor; it must be placed in the conditioned area. But if the DC60 is placed in the area conditioned by the rooftop, that display is connected, it is possible, in this case, to use the temperature measurement of the DC60. -
Page 89: Configuration
DISPLAY DC60 CONFIGURATION To communicate with the CLIMATIC™ 60 this basic parameters of internal DC60 must to be settled. Setup menu To do this, when the 'DC60 is powered; Simultaneously press the keys and q. After some seconds, the text appears and the value '000' fl ashes. ... -
Page 90: Initialization
DISPLAY DC60 INITIALIZATION If the connection between the CLIMATIC™ 60 and the 'DC60 is not correct (Offl ine) screen displays only the symbol . In this case, check: : • the connection between CLIMATIC™ 60 and DC60 • the setting of the DC60 •... - Page 91 DISPLAY DC60 PRESENTATION Buttons Ventilation Control Not used Not used Standby Clock Viewing or setting the time Knob Select or set of values q On/Off unit By supporting a few seconds the button , you can activate or not (On/Off) the rooftop connected. If the symbol ...
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Page 92: Use
DISPLAY DC60 Information available By rotating the knob , you can view or modify the following values: DC60 set in light mode : Volatile temperature set point current mode (°C) Indoor (Room) temperature (°C) Volatile Temperature set point ... - Page 93 DISPLAY DC60 Volatile temperature set point This item allows you to view and/or modify the control temperature required for the rooftop selected. If this point is changed, this value is used until the scheduling changes mode (A, B, C, D, BMS). At each change of the mode, the CLIMATIC™...
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Page 94: Level 2 Activation
DISPLAY DC60 LEVEL 2 ACTIVATION (2 buttons on the right simultaneously) Simultaneously press the keys and q. After some seconds the text appears and the value '000' fl ashes. Turn the knob to change the value to select the number 066. Then validate the code by pressing the knob. If the code is wrong access the setup menu is not possible and the DC60 returns to the previous display. -
Page 95: Display Dm60
• for a length of 0 to 500 m: LiYCY-P (0.34 mm ²), two pairs shielded general. The cable length should not exceed 500 m. For a better protection of electromagnetic disturbances LENNOX recommends the icable LiYCY-P installation. • 93 •... - Page 96 If J14 and J15 are set differently, the DT50 dispatcher DOESN'T WORK and therefore connected displays don't work. Display's ferrites protection To avoid appearance of RF interference that may cause destruction of components in the displays, you need to equip the cable of a ferrite, during its installation (provided by LENNOX). • 94 • DC60-DM60_ROOFTOP-IOM-1307-E...
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Page 97: Dm60 And Communication Master/Slaves
• For a length of 0 to 500 m: LiYCY-P (0.34 mm ²), a pair overall shield. cable length should not exceed 500 m. For better protection of electromagnetic disturbances Lennox recommends the installation of cable LiYCY-P. WARNING : The BM60 24Vac cards should not be connected to the 'earth'. -
Page 98: Configuration
DISPLAY DM60 CONFIGURATION Brightness / Contrast The display is equipped with a contrast, but it can be adjusted manually. For manual adjustment of contrast, simultaneously press the 'alarm' and 'prg' keys and press 'arrow' or 'down arrow' buttons to increase or decrease the contrast. Confi... - Page 99 DISPLAY DM60 Main Top left : Control in heating mode or control in cooling mode • Small, numerical value: volatile set point temperature: View and/or modify the offset, or set point, of the desired temperature control for the selected rooftop. Pressing the 'arrow' button increases the set point value. Pressing the 'down arrow' button decreases the set point value.
- Page 100 DISPLAY DM60 Rooftop off If the rooftop is Off, this screen is activated. • pressing the 'alarm' button directs you to the alarm list display. • pressing the 'prg' button directs you to the rooftop setup menus display. • pressing the 'esc' button takes you to the selected rooftop choice display. Rooftop operation •...
- Page 101 DISPLAY DM60 Heating mode set point visualization Cooling mode set point visualization Fresh air damper opening percentage visualization Engaged compressor percentage visualization Engaged heaters percentage visualization • pressing the 'alarm' button directs you to the alarm list display. • pressing the 'esc' button takes you to the main display. •...
- Page 102 DISPLAY DM60 Setup menus Access to the setup menus is protected by a password. The password must be entered digit by digit. If the password is correct, the lock opens, and the selection of the function choice is active. • Pressing the 'alarm' button directs you to alarm list display. •...
- Page 103 DISPLAY DM60 Setting; Reset Alarms View/edit, alarm and safety reset • Pressing the 'alarm' button directs you to alarm list display. • Pressing the 'esc' button directs you to the rooftop menu setup display. • Pressing the 'up arrow' button reverses the state. •...
- Page 104 DISPLAY DM60 Setting; Clock of CLIMATIC™ View/edit, hour, minute, day of month, month and year of the CLIMATIC™ clock. • Pressing the 'alarm' button directs you to the alarm list display. • Pressing the 'esc' button directs you to the rooftop setup menus display. •...
- Page 106 PORTUGAL +33 4 72 23 20 00 +351 229 066 050 Due to Lennox’s ongoing commitment to quality, the specifi cations, ratings and dimensions are subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.