Installation, Operation, and Maintenance UniTrane Fan-Coil & Force Flo Air Conditioners 200 to 1,200 cfm Models FC & FF “ZO” and later design sequence Low vertical models FCKB & FCLB: “SO” and later design sequence April 2005 UNT-SVX07A-EN
general information About This Manual Literature Change History Use this manual for UniTrane fan-coils and Force Flo cabinet heaters. This is the seventh revision of this manual. It provides specific installation, operation, and maintenance instructions for “ZO” and later design sequences for all models except low vertical, which are “SO” and later design sequences. For previous design sequence information, contact your local Trane representative.
contents Cross reference to related publications/information for UniTrane™ fan-coil & Force Flo™ equipment: • Rover™ Installation, Operation and Programming Guide, EMTX-SVX01D-EN • Tracer™ ZN510 Unit Controller, CNT-IOP-1 • Tracer™ ZN520 Unit Controller, CNT-SVX04A-EN • UniTrane™ Fan-Coil Catalog, UNT-PRC001-EN • Force Flo™ Cabinet Heater Catalog, CAB-PRC001-EN Installation ……………………………………………………………2 general information ……………………………………………2 dimensions & weights ……………………………………… 10 pre-installation consideratio
general information General UniTrane fan-coil and Force Flo units are intended for single zone applications. These units have load capabilities of 200 to 1200 cfm. See Figure I-GI-1 for unit components. Fan-coil units are available as two-pipe, with or without electric heat (one hydronic circuit) or four-pipe (two hydronic circuits). Force-Flo units feature two-pipe hydronic, electric heat only, or steam only. Also, these units feature a variety of factory mounted piping packages.
general information Installation Model Number Description FC B B 020 1 C P0 A 0 G 1 0 A A 2 M 000 0 0 1 0 0 0 A A 000 000 0 0 0 0 A 0 0 1 5 10 15 Digits 1, 2 — unit type FC = fan-coil FF = force flo Digit 3 — cabinet type A = vertical concealed B = vertical cabinet C = horizontal concealed D = horizontal cabinet E = horizontal recessed F = vertical wall hung H = vertical recessed J = vertical cabinet slope top K = low vertical concealed L = low vertical cabinet M = inverted vertical cabinet N = invert
Installation J = 2-way, modulating, 0.7 Cv (50 psig)* K = 3-way, modulating, 0.7 Cv (50 psig)* L = 2-way, modulating, 1.1 Cv (60 psig)* M= 3-way, modulating, 1.1 Cv (60 psig)* N = 2-way, modulating, 2.3 Cv (60 psig)* P = 3-way, modulating, 2.7 Cv (60 psig)* Q = 2-way, modulating, 3.3 Cv (60 psig)* R = 3-way, modulating, 3.
general information Installation Table I-GI-1. Fan-coil component data unit size Coil Data Face Area — Ft2 (cm2) LxDxH — In. (cm) 2-Row 3-Row 4-Row Volume — Gal. (Liters) 1-Row (Heat) 2-Row 3-Row 4-Row Fins/Ft (cm) 2-Row 3-Row 4-Row Reheat Coil Data (1-Row) Hot Water or Steam Face Area — Ft2 (cm2) LxDxH — In. (cm) Volume — Gal. (Liters) Fins/Ft (cm) Fan/Motor Data Fan Quantity Size — Dia” x Width” (cm) 02 03 04 06 08 10 12 0.8 (743) 0.8 (743) 1.1 (1020) 1.6 (1490) 2.1 (1950) 3.2 (2970) 3.
Installation general information model A vertical concealed model B vertical cabinet model C horizontal concealed model D horizontal cabinet model E horizontal recessed model F wall hung cabinet model K low vertical cabinet model H vertical recessed Available Models model L low vertical concealed model J slope-top cabinet 8 model M inverted vertical cabinet (Force Flo only) model N inverted vertical recessed (Force Flo only) UNT-SVX07A-EN
Installation general information Factory-Installed Piping Packages Note: This figure shows piping package components and basic arrangement. It is not an accurate pictorial of what factory-installed piping packages look like.
Installation Vertical Concealed, Model A dimensions & weights Vertical Concealed Unit Dimensions & weights, in-lbs.
Installation dimensions & weights Vertical Cabinet, Model B Vertical Cabinet Unit Dimensions, in-lbs.
Installation dimensions & weights Horizontal Concealed, Model C Horizontal Concealed Unit Dimensions, in-lbs.
Installation dimensions & weights Horizontal Cabinet, Model D Horizontal Cabinet Unit Dimensions, in-lbs.
Installation Horizontal Recessed, Model E dimensions & weights Horizontal Recessed Unit Dimensions, in-lbs.
dimensions & weights Installation Vertical Wall Hung Cabinet, Model F Vertical wall hung cabinet unit dimensions & weights, in-lbs.
Installation dimensions & weights Vertical Recessed, Model H Vertical Recessed Unit Dimensions, in-lbs.
Installation dimensions & weights Vertical Slope Top, Model J Vertical Slope Top Unit Dimensions, in-lbs.
Installation dimensions & weights Low Vertical Concealed, Model K Low Vertical Concealed Unit Dimensions, in-lbs. unit size 03 A 3’-5 7/16” B 2’-2 1/4” C 2’-3 15/16” D 1’-10 5/16” E 2’-0 1/4” operating weight 109 shipping weight 96 04 4’-2 15/16” 2’-11 3/4” 3’-0 13/16” 2’-7 13/16” 2’-9 3/4” 139 123 06 4’-11 7/16” 3’-8 1/4” 3’-9 15/16” 3’-4 5/16” 3’-6 1/4” 147 131 Notes: 1. Coil connections are always on the drain pan side and opposite the control box. 2. Coil connections are 5/8” O.D. sweat. 3.
Installation dimensions & weights Low Vertical Cabinet, Model L Low Vertical Cabinet Unit Dimensions, in-lbs. unit size 03 04 A 3’-10 15/16” 4’-8 7/16” B 2’-2 1/4” 2’-11 3/4” C 11 7/16” 1’-1 5/16” D 2’-0” 2’-6” E 2’-0 1/4” 2’-9 3/4” operating weight 125 155 shipping weight 112 139 06 5’-4 15/16” 3’-8 1/4” 11 7/16” 3’-6” 3’-6 1/4” 164 148 Notes: 1. Coil connections are always on the drain pan side and opposite the control box. 2. Coil connections are 5/8” O.D. sweat. 3.
Installation dimensions & weights Inverted Vertical Cabinet, Model M Inverted vertical cabinet unit dimensions & weights, in-lbs.
Installation Inverted Vertical Recessed, Model N dimensions & weights Inverted vertical recessed unit dimensions & weights, in-lbs.
Installation dimensions & weights Fan-Coil Coil Connections Vertical Units Fan-Coil Coil Connections Horizontal Units 22 UNT-SVX07A-EN
Installation dimensions & weights Force Flo Coil Connections, Vertical Units Force Flo Coil Connections, Horizontal Units Force Flo Coil Connections, Inverted Units HR - Hot Water Return HS - Hot Water Supply UNT-SVX07A-EN 23
dimensions & weights Installation Fresh Air Opening Locations Horizontal Units Models C, D, and E Fresh Air Opening Dimensions, Horizontal Units Unit Size A B 24 02-03 04 1’-6” 1’-11” 5 1’-9 /16” 2’-2 5/16” 06 08 2’-8 1/2” 3’-5” 13 2’-11 /16” 3’-8 5/16” 10-12 5’-0” 5’-3 5/16” UNT-SVX07A-EN
dimensions & weights Installation Fresh Air Opening Locations Vertical Units Models A, B, F, & J WALL HUNG Fresh Air Opening Dimensions, Vertical Units Unit Size A B UNT-SVX07A-EN 02-03 04 1’-6” 1’-11” 5 1’-9 /16” 2’-2 5/16” 06 08 2’-8 1/2” 3’-5” 13 2’-11 /16” 3’-8 5/16” 10-12 5’-0” 5’-3 5/16” 25
dimensions & weights Installation Wall Box CONTINUOUS MORTAR RIBS TOP AND BOTTOM Wall Box Dimensions Unit Size Ref. Only 02 - 03 04 06 08 10 -12 Dimensions AxB 24 3/8 x 4 3/4 24 3/8 x 7 1/2 33 1/8 x 7 1/2 37 1/2 x 7 1/2 58 1/4 x 7 1/2 Internal Supports 1 1 2 3 4 /8” 1 1 /8 ” 1 /2 ” /4” 3 /2” 1 1 3/8” /8” 1 4” CLEARANCE FOR DRAINAGE CONTINUOUS DRIP LIP TOP AND BOTTOM 26 ADDITIONAL INTERNAL SUPPORTS EQUALLY SPACED. NOT TO EXCEED 12” O.C.
Installation dimensions & weights Projection Panel Projection Panel Dimensions Unit Size A B 02 - 03 3’-11” 2’-6” 04 4’-3” 2’-6” 06 5’-3” 2’-6” 08 5’-5 1/2” 2’-9 1/2” 10 - 12 7’-5 1/2” 2’-9 1/2” UNIT TO WALL — TOP VIEW Projection Panel, All Unit Sizes C D E 2” 1 1/8“ 8 5/8“ 2 1/2” 1 5/8“ 8 1/8“ 3” 2 1/8“ 7 5/8“ 3 1/2” 2 5/8“ 7 1/8“ 4” 3 1/8“ 6 5/8“ 4 1/2” 3 5/8“ 6 1/8“ 5” 4 1/8“ 5 5/8“ 5 1/2” 4 5/8“ 5 1/8“ 6” 5 1/8“ 4 5/8“ FRONT VIEW ISO REAR VIEW ISO UNT-SVX07A-EN 27
Installation WARNING Hazardous Voltage w/Capacitors! Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.
pre-installation considerations Installation Service Access Service access is available from the front on vertical units and from the bottom on horizontal units. Cabinet and recessed units have removable front or bottom panels to allow access into the unit. See Figure I-PC-1 for recommended service and operating clearances. 24" 12" both sides 8.5" both sides Units have either right or left hand piping. Reference piping locations by facing the front of the unit (airflow discharges from the front).
Installation Duct Connections Install all air ducts according to National Fire Protection Association standards for the Installation of Air Conditioning and Ventilating Systems (NFPA 90A and 90B). Install all air ducts according to the National Fire Protection Association standards for the “Installation of Air Conditioning and Ventilation Systems other than Residence Type (NFPA 90A) and Residence Type Warm Air Heating and Air Conditioning Systems (NFPA 90B).
Installation Water Piping Connections to FactoryInstalled Piping Package Before installing water piping supply and return lines to factory piping package, note the following items. • All piping connections are 5/8-inch O.D. (1/2-inch nominal) female copper connections. • The fan-coil supply and return piping should not interfere with the auxiliary drain pan or condensate line. See “Connecting the Condensate Drain” section for more information.
Installation Figure I-MR-3. Attach the changeover sensor to the entering water pipe as shown for changeover to work properly Automatic Electric Heat Lockout Switch Two-pipe fan-coil units with auxiliary electric heat have an automatic electric heat lockout switch that disengages the electric heat when hydronic heat enables. If the unit has a factory piping package and electric heat, the factory attaches the switch to the supply water pipe.
Installation Balancing The Manual Circuit Setter Valve The manual circuit setter valve is an optional end valve supplied on the return pipe of the factory piping package. The valve allows the operator to regulate water flow through the hydronic coil, balance the water flow through the unit with other units in the piping system, and serves as a shutoff or end valve. See Figure I-MR-8. Follow the procedure below to set maximum water flow through the coil. 1. Establish water flow through the coil.
Installation mechanical requirements Note: Instructions for using this chart are on the previous page. For the manual circuit setter provided with the fan-coil or Force Flo, use the 'M' line for reference. Chart I-MR-1. Manual circuit setter valve, differential pressure vs.
Installation mechanical requirements Steam Piping CAUTION Coil Damage! In all steam coil installations, the condensate return connections must be at the low point of the coil to ensure condensate flows freely from the coil at all times. Failure to do so may cause physical coil damage from water hammer, unequal thermal stresses,freeze-up and/or corrosion. 1. Make piping connections to the steam coil as shown in Figure I-MR-11. Cap the unused connection. 2.
Installation Unit Wiring Diagrams Specific unit wiring diagrams are provided inside each unit and can be easily removed for reference.Use these diagrams for connections or trouble analysis. Wiring diagrams are attached on the inside of the front panel of vertical cabinet & recessed models and on the fan and motor panel of vertical concealed & all horizontal models.
electrical requirements Installation Table I-ER-2. Low vertical free discharge motors, 115 volt size 03 FLA 0.7 HP (kW) .03 (0) 04 0.8 .03 (0) 06 1.1 .03 (0) H M L H M L H M L RPM 1090 770 560 1090 750 560 1115 760 560 Note: Actual rpm will vary with application and configuration. Table I-ER-3. Decimal to fractional HP (kW) conversion FC 02 03 04 06 08 10 12 low vertical 03, 04, 06 Decimal .03 .07 .04 .05 .08 .05 .06 .10 .13 .07 .12 .16 .24 .12 .13 .24 .05 .07 .06 .12 .10 .16 .13 .24 .
electrical requirements Installation Table I-ER-8. Fan-coil electric heat kW Unit Size 02 03 04 06 08 10 12 Unit Voltage 115 230 277 208 115 230 277 208 115 230 277 208 115 230 277 208 115 230 277 208 115 230 277 208 115 230 277 208 kW 1.0 1.0 1.0 0.8 1.0 1.0 1.0 0.8 kW 1.5 1.5 1.5 1.1 1.5 1.5 1.5 1.1 kW 2.0 2.0 2.0 1.5 2.0 2.0 2.0 1.5 2.0 2.0 2.0 1.5 2.0 2.0 2.0 1.5 2.0 2.0 2.0 1.5 kW 1.9 2.5 2.5 2.5 1.9 2.5 2.5 2.5 1.9 kW 2.3 3.0 3.0 3.0 2.3 3.0 3.0 3.0 2.3 3.0 3.0 3.0 2.3 3.0 3.0 3.0 2.
electrical requirements Installation Table I-ER-10. Force Flo single-stage, max kW electric heat unit size 02 03 04 06 volts 208 240 277 208 240 480 208 240 277 208 240 480 208 240 277 208 240 480 208 240 277 208 240 480 hz 60 60 60 60 phase 1 1 1 3 3 3 1 1 1 3 3 3 1 1 1 3 3 3 1 1 1 3 3 3 wires 2 2 2 3 3 4 2 2 2 3 3 4 2 2 2 3 3 4 2 2 2 3 3 4 heater kW 2.25 3.0 3.0 2.25 3.0 3.0 4.5 6.0 6.0 4.5 6.0 6.0 5.7 7.5 7.5 5.7 7.5 7.5 7.9 10.5 10.5 7.9 10.5 10.5 heater amps/ph 10.9 12.5 10.9 6.3 7.3 3.
electrical requirements Installation Table I-ER-12.
Installation Installing the Unit Follow the procedures below to install the unit properly. Reference the “Dimensions and Weights” section for specific unit dimensions and mounting hole locations. Vertical Units CAUTION Electrical Wiring! Do not allow electrical wire to fall between the unit and installation surface. Failure to comply may result in electrical shorts or difficulty accessing wires.
Installation installation procedure CAUTION Unit Leveling! All unit panels and filters must be in place prior to unit start-up. Failure to have panels and filters in place may cause motor overload. Note: The trim ring assembly cannot accomodate unlevel ceilings. Note: On sizes 8, 10, & 12 center installation position and use 2 or 3.5-inch bolts, whichever is best suited for installation. Also, install two safety chains assemblies on these sizes.
Installation installation procedure Wall-Mounted Control Options Figure I-IP-2. Zone sensor with off/ auto/high/low fan speeds, setpoint knob, on/cancel, and comm jack. Figure I-IP-3. Zone sensor with on/cancel and comm jack. Figure I-IP-4. Zone sensor with setpoint knob, on/cancel, & comm jack. Figure I-IP-5. Zone sensor only, Figure I-IP-6.
Installation Installing Wall Mounted Controls • Concealed pipes, air ducts, or chimneys in partition spaces behind the controller. Reference the wall-mounted zone sensor dimensions in Figure I-IP-6. Position the controller on an inside wall three to five feet above the floor and at least 18 inches from the nearest outside wall. Installing the controller at a lower height may give the advantage of monitoring the temperature closer to the zone, but it also exposes the controller to airflow obstructions.
Installation Installation Checklist The following checklist is only an abbreviated guide to the detailed installation procedures given in this manual. Use this list to ensure all necessary procedures are complete. For more detailed information, refer to the appropriate sections in this manual. WARNING Hazardous Voltage w/Capacitors! Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing.
Installation pre-startup requirements Communication Wiring Device Addressing Units with Tracer ZN510 and ZN520 Only LonTalk devices are given a unique address by the manufacturer. This address is called a Neuron ID. Each Tracer ZN510 and ZN520 controller can be identified by its unique Neuron ID, which is printed on a label on the controller’s logic board. The Neuron ID is also displayed when communication is established using Tracer Summit or Rover service tool.
Installation Pre-Startup Checklist Complete this checklist after installing the unit to verify all recommended installation procedures are complete before unit startup. This does not replace the detailed instructions in the appropriate sections of this manual. Disconnect electrical power before performing this checklist. Always read the entire section carefully to become familiar with the procedures.
Installation Tracer™ ZN510 & ZN520 Unit Startup Refer to the Trane publication, CNT-IOP-1 Installation, Operation and Programming Guide for Tracer ZN510 and CNTSVX04A-EN for Tracer ZN520. The factory pre-programs the Tracer ZN510 and ZN520 with default values to control the temperature and unit airflow. Use Tracer Summit building automation system or Rover™ software to change the default values. Follow the procedure below to operate the Tracer ZN510 or ZN520 in a standalone operation: 1.
Operation General Information Relay Board The relay board is a new component on all models (except those with a unitmounted, line-voltage fan speed switch) that replaces all the loose wires in the control box. It consolidates many control components onto one board, therefore making it easy to troubleshoot in the field. There is an LED on the board that indicates when power is supplied to the board. All connections are made to match up only with the applicable component to, thus prevent miswiring.
Operation sequence of operation Fan Mode Switch Operation Tracer ZN520 Operation Off Fan is turned off, two-position damper option spring-returns closed. Off Fan is off; control valve options and fresh air damper options close. The low air temperature detection option is still active. Hi, Med, Lo Fan runs continuously at the selected speed. The two-position damper option opens to an adjustable mechanical stop position.
sequence of operation Operation Sequence of Operation Tracer ZN010 and ZN510 Note: this section applies only to units with a Tracer ZN010 or ZN510 controller. Power-Up Sequence When 24 VAC power is initially applied to the Tracer ZN010 or ZN510, the following sequence occurs: 1. All outputs are controlled off. 2. Tracer ZN010 and ZN510 reads all input values to detemine initial values. 3. The random start time (0-25 seconds) expires. 4. Normal operation begins.
sequence of operation Operation Analog Inputs Both Tracer ZN010 and ZN510 accept a maximum of five analog inputs. Reference Table O-SO-4. Table O-SO-4. Analog inputs Zone Sensors The zone sensors available with the Tracer ZN010 and ZN510 provide up to three different inputs 1. Space temperature measurement (10KΩ thermistor) 2. Local setpoint 3. Fan mode switch Wall mounted zone sensors include a thermistor as a component of the internal printed circuit board.
Operation Tracer ZN520 Sequence of Operation The Tracer ZN520 operates the fan in the following modes: 1) occupied 2) unoccupied 3) occupied standby 4) occupied bypass 5) Tracer Summit with supply fan control Occupied When the controller is in the occupied mode, the unit attempts to maintain the space temperature at the active occupied heating or cooling setpoint, based on the measured space temperature, the discharge air temperature, the active setpoint, and the proportional/integral control algorithm.
Operation Cooling Operation The heating and cooling setpoint high and low limits are always applied to the occupied and occupied standby setpoints. During the cooling mode, the Tracer ZN520 controller attempts to maintain the space temperature at the active cooling setpoint.
sequence of operation Operation Fan Mode Operation Table O-SO-8. Local fan switch enabled For multiple fan speed applications, the Tracer ZN520 controller offers additional fan configuration flexibility. Separate default fan speeds for heating and cooling modes can be configured. The fan runs continuously for requested speeds (off, high, medium, or low). When the fan mode switch is in the Auto position or a hardwired fan mode input does not exist, the fan operates at the default configured speed.
Operation Fan Start on High Speed On a transition from off to any other fan speed, the Tracer ZN520 controller automatically starts the fan on high speed and runs the fan at high speed for 0.5 seconds. This provides the ample torque required to start all fan motors from the off position. Entering Water Temperature Sampling Function Only units using the main hydronic coil for both heating and cooling (2-pipe changeover and 4-pipe changeover units) use the entering water temperature sampling function.
sequence of operation Operation Note: If the unit is in the unoccupied mode, the dehumidification routine will not operate. Note: The generic binary input can be used with a Tracer Summit® building automation system only. Data Sharing Because this controller utilizes LonWorks™ technology, the controller can send or receive data (setpoint, heat/ cool mode, fan request, space temperature, etc.
sequence of operation Operation Table O-SO-14. Analog inputs description terminals zone ground set fan TB3-1 TB3-2 TB3-3 B3-4 ground TB3-6 function space temperature input analog ground setpoint input fan switch input analog ground range 5° to 122°F (-15° to 50°C) NA 40° to 115°F (4.4° to 46.
Operation Zone Sensor The Tracer ZN520 controller accepts the following zone sensor module inputs: • Space temperature measurement (10kΩ thermistor) • Local setpoint (either internal or external on the zone sensor module) • Fan switch • Timed override (On) and Cancel timed override • Communication jack Space Temperature Measurement Trane zone sensors use a 10kW thermistor to measure the space temperature. Typically, zone sensors are wall-mounted in the room and include a space temperature thermistor.
Maintenance diagnostics Diagnostics Table M-D-1.
Maintenance Translating Multiple Diagnostics The controller senses and records each diagnostic independently of other diagnostics. It is possible to have multiple diagnostics present simultaneously. The diagnostics are reported in the order they occur.
Maintenance diagnostics Table M-D-3. Fan outputs do not energize Probable Cause Explanation Random start After power-up, the controller always observes a random start that varies observed between 0 and 25 seconds. The controller remains off until the random start time expires. Power-up control wait When power-up control wait is enabled (non-zero time), the controller remains off until one of two conditions occurs: 1.
Maintenance diagnostics Table M-D-6. Electric Heat Not Operating Probable Cause Explanation Normal operation The controller cycles electric heat on and off to meet the unit capacity requirements. Requested mode: off It is possible to communicate the operating mode (such as off, heat, cool) to the controller. When off is communicated to the controller, the units shuts off the electric heat.
Maintenance troubleshooting Board switches are factory set based on unit control options. Figure M-T-2 shows a relay board detail. Additional information on switch settings follows. Switch SW1: Controller Type SW1 determines the unit control type. Position 1 indicates one of the following: • generic field controller • low-voltage fan speed switch • Tracer ZN010 • Tracer ZN510 Position 2 indicates Tracer ZN520. Switch SW2: Electric Heat SW2 determines if the unit has electric heat. Figure M-T-1.
Maintenance troubleshooting Troubleshooting Tracer ZN010, ZN510 & ZN520 Green STATUS LED indicates whether the controller is powered on (24 VAC supplied) Yellow COMM LED indicates if communication is functioning Red SERVICE LED indicates is service is needed Figure M-T-1. The Tracer ZN010 board Red SERVICE LED During normal operation, the LED is off continuously when power is applied to the controller.
Maintenance troubleshooting • Verify output wiring and operation without using Rover™, service tool • Force the water valve to open and balance the hydronic system Note: The manual output test is not an automatic cycle. You must press the TEST button to proceed through each step. The controller observes all diagnostics that occur during the test sequence.
Maintenance Maintenance Procedures Perform the following maintenance procedures to ensure proper unit operation. WARNING Live Electrical Components! During installation, testing, servicing, and troubleshooting this equipment, it may be necessary to work with live electrical components. Have a qualified licensed electrician or other individual who is properly trained in handling live electrical components perform these tasks.
Maintenance clips hold drain pan in place Figure M-MP-3. To remove the main drain pan on vertical fan-coil units, disconnect the clips holding the pan to the fanboard. mounting screws Figure M-MP-4. To remove the main drain pan on horizontal fan-coil units, peel the insulation from the edges of the pan’s underside to access the mounting screws. Coil Maintenance Keep coils clean to maintain maximum performance.
Maintenance Fan Board Assembly Removal Follow the procedure below when replacing the coil or making repairs to the fan or motor. WARNING Hazardous Voltage w/Capacitors! Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.
Maintenance Periodic Maintenance Checklists Monthly Checklist The following check list provides the recommended maintenance schedule to keep the unit running efficiently. WARNING Live Electrical Components! During installation, testing, servicing, and troubleshooting this equipment, it may be necessary to work with live electrical components. Have a qualified licensed electrician or other individual who is properly trained in handling live electrical components perform these tasks.
Maintenance typical wiring diagram CSTI Fan Speed Switch UNT-SVX07A-EN 71
Maintenance typical wiring diagram CSTI Non Fan Speed Switch 72 UNT-SVX07A-EN
Maintenance typical wiring diagram Line voltage fan speed switch UNT-SVX07A-EN 73
Maintenance typical wiring diagram Tracer ZN010 with electric heat 74 UNT-SVX07A-EN
Maintenance typical wiring diagram Tracer ZN510 with main and auxilliary valves UNT-SVX07A-EN 75
Maintenance typical wiring diagram ZN520 with 2-stage electric heat 76 UNT-SVX07A-EN
US a business of American Standard Inc. www.trane.com For more information contact your local office or e-mail us at comfort@trane.com Literature Order Number UNT-SVX07A-EN File Number PL-TD-UNT-SVX07A-EN 0405 Supersedes UNT-IOM-6 04/00 Stocking Location LaCrosse - Inland Trane has a policy of continuous product improvement and reserves the right to change design and specifications without notice. Only qualified technicians should install and service equipment.
