Trane IntelliPak with Symbio 800 Installation, Operation And Maintenance Manual
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Trane IntelliPak with Symbio 800 Installation, Operation And Maintenance Manual

Trane IntelliPak with Symbio 800 Installation, Operation And Maintenance Manual

Commercial rooftop air conditioners
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Installation, Operation, and Maintenance
IntelliPak™ with Symbio™ 800
Commercial Rooftop Air Conditioners
"A" and later design sequence
RA *20, *25, *30, *40, *50, *55, *60, *70,
*75
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment
can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.
September 2022
SAFETY WARNING
RT-SVX063G-EN

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  • Page 1 Installation, Operation, and Maintenance IntelliPak™ with Symbio™ 800 Commercial Rooftop Air Conditioners “A” and later design sequence RA *20, *25, *30, *40, *50, *55, *60, *70, SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
  • Page 2 (HCFCs). Not all refrigerants containing these compounds bump cap, fall protection, electrical PPE and arc have the same potential impact to the environment. Trane flash clothing). ALWAYS refer to appropriate advocates the responsible handling of all refrigerants-...
  • Page 3 This document and the information in it are the property of policies. Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to • Non-Trane personnel should always follow local revise this publication at any time, and to make changes to regulations.

  • Page 4: Table Of Contents

    Voltage Supply ..... . . 30 Trane Startup Checklist....62 Electrical Data .
  • Page 5 Table of Contents Stop/Off/Auto ......65 Space Static Pressure Control without Statitrac™ ......73 Power-Up Start Delay .
  • Page 6 Table of Contents Variable Speed Compressor Operating Mode OFF and Normal Modulating Current Limit ....79 Operating Modes ..... 90 Compressor Low Suction Saturated Heat/Cool Capacity Lockouts and Temperature Speed Limit .
  • Page 7 Table of Contents VFD Programming Parameters Final Process ......132 (Supply/Condenser for Low Ambient Wiring Diagrams.

  • Page 8: Model Number Description

    Model Number Description Digit 1 — Unit Type Digit 10, 11— Design Sequence Digit 19 — Relief Fan Motor R = Packaged Rooftop AA = Current Design Sequence 0 = None 2 = 6 hp 3 = 8 hp Digit 2 — Unit Function Digit 12 —...
  • Page 9 Model Number Description Digit 27 — Outside Air Digit 41 — Modulating Hot Gas Reheat & Hot Digit 48 — Controls Expansion Hardware Gas Bypass 0 = None 0 = None 0 = None 1 = 0-25% Manual Damper A = Expansion Module 1 = Hot Gas Reheat 2 = 0-100% Economizer 3 = Hot Gas Bypass...

  • Page 10: General Information

    An optional roof curb, number, electrical characteristics, refrigerant charge, unit specifically designed for the units is available from Trane. wiring diagram numbers, as well as other pertinent unit The roof curb kit must be field assembled and installed data.

  • Page 11: Pre-Installation

    Trane, to VALIDATE this WARRANTY. Contractor • Take photos of the damage, if possible. must provide a two-week startup notification and true start date to Trane (or an agent of Trane specifically authorized • The owner must provide reasonable evidence that the to perform startup).

  • Page 12: Additional Requirements For Units Requiring Disassembly

    When a new fully assembled IntelliPak is shipped and • Start-up must be performed by Trane or an agent of received from our Trane manufacturing location, and, for Trane specifically authorized to perform start-up and any reason, it requires disassembly or partial disassembly, warranty of Trane®...

  • Page 13: Dimensional Data

    Dimensional Data Table 1. Unit Dimensions Refrigeration Pre-Evaporator Coil Overall Footprint Relief Option System Unit Function Outside Air Filter Length Length H (in.) W (in.) Tons Performance Digit Digit Digit (in.) (in.) Type Type Type Type Digit 27 Type Digit 24 Retrieving data.
  • Page 14 Dimensional Data Table 1. Unit Dimensions (continued) Refrigeration Pre-Evaporator Coil Overall Footprint Relief Option System Unit Function Outside Air Filter Length Length H (in.) W (in.) Tons Performance Digit Digit Digit (in.) (in.) Type Type Type Type Digit 27 Type Digit 24 A,B,C,D,F,G Panel...
  • Page 15 Dimensional Data Table 1. Unit Dimensions (continued) Refrigeration Pre-Evaporator Coil Overall Footprint Relief Option System Unit Function Outside Air Filter Length Length H (in.) W (in.) Tons Performance Digit Digit Digit (in.) (in.) Type Type Type Type Digit 27 Type Digit 24 A,B,C,D,F,G Panel...
  • Page 16 Dimensional Data Figure 1. 20 to 30 ton — front view (inches) 90.63 40.28 27.31 FRONT VIEW 20-30T RT-SVX063G-EN...
  • Page 17 Dimensional Data Figure 2. 20 to 30 ton — left view of sample configuration (inches) 220.88 38.85 87.66 81.59 69.33 40.61 213.00 LEFT SIDE VIEW 20-30T / NO HEAT / RELIEF FANS / PANEL FILTERS RT-SVX063G-EN...
  • Page 18 Dimensional Data Figure 3. 40 to 55 ton — front view (inches) 90.63 40.28 27.31 FRONT VIEW 40-55T RT-SVX063G-EN...
  • Page 19 Dimensional Data Figure 4. 40 to 55 ton — left view of sample configuration (inches) 81.59 87.66 79.33 300.88 LEFT SIDE VIEW 40-55T / ELECT. HT. / CART. FILTERS Figure 5. 60 to 75 ton — front view (inches) 116.13 40.38 27.32 FRONT VIEW...

  • Page 20: Roof Curb

    Dimensional Data Figure 6. 60 to 75 ton — left view of sample configuration (inches) 320.73 38.63 81.59 87.90 79.71 41.27 23.29 4.52 281.88 LEFT SIDE VIEW 60-75T / GAS HEAT / BAROMETRIC RELIEF / PANEL FILTERS Roof Curb Figure 7. Service clearance 96"...
  • Page 21 Dimensional Data Figure 8. Roof curb dimensions (inches) RETURN OPENING 4.01 OPENING TOP OF CURB 18.00 1.33 SUPPLY OPENING OPENING 4.01 BOTTOM OF CURB 7.50 16.60 7.00 RT-SVX063G-EN...
  • Page 22 Dimensional Data Table 2. Roof curb dimensional data (inches) Description RX, 20-30 T, PANEL 169.99 84.50 3.58 24.62 76.49 3.60 27.00 67.50 111.19 18.97 95.94 94.50 170.31 84.82 59.80 97.89 FILTER RX, 20-30 T, PANEL 200.97 84.50 33.05 26.13 76.49 3.60 27.00 67.50...
  • Page 23 Dimensional Data Figure 9. Base and pedestal 5.5" 3.4" GASKET BASE 4.3" 1.5" .5" 2 X 4 NAILER ROOF CURB TYPICAL ROOF CURB & BASE DETAIL SECT. A-A PLAN VIEW 5.5" 2.5" 3.4" LIFTING LUG 7.5" BASE BASE 4.3" 2.8" PEDESTAL 1.5"...

  • Page 24: Electrical Entry Details

    Dimensional Data Electrical Entry Details Figure 10. Electrical connections (inches) ISO VIEW C CAB ISO VIEW A & B CAB POWER BOX CONTROL BOX DOOR 6.48 3.54 OR 4.55 8.06 CONTROL BOX SIDE PANEL 8.22 REAR ISO VIEW TOP VIEW ELECTRIC MAIN POWER ENTRY ELECTRIC MAIN POWER ENTRY RT-SVX063G-EN...

  • Page 25: Access Clearances

    Dimensional Data Access Clearances Figure 11. Minimum access clearances – 20 to 30 ton 32" SUPPLY FAN 26.5" SUPPLY FAN 20.5" OUTSIDE AIR SUPPLY FAN ELECTRIC HEAT POWER CONTROL BOX CONTROL BOX CONTROL BOX PLAN VIEW 20-30T DOOR LAYOUT Figure 12. Minimum access clearances – 40 to 55 ton 32"...
  • Page 26 Dimensional Data Figure 13. Minimum access clearances – 60 to 75 ton 32" SUPPLY FAN 26.5" SUPPLY FAN 20.5" OUTSIDE AIR SUPPLY FAN POWER CONTROL BOX CONTROL BOX PLAN VIEW 60-75T DOOR LAYOUT RT-SVX063G-EN...

  • Page 27: Installation

    Step-by-step curb assembly and installation instructions Figure 14. Typical unit base and roof curb cross ship with each Trane accessory roof curb kit. Follow the section instructions carefully to assure proper fit-up when the unit is set into place.
  • Page 28 Installation Figure 15. Lug locations Tonnage Cartridge Filter Efficiency RA/RX Cabinet 20, 25, 30 40,50,55 High/Eflex High/Eflex 70,75 High/Eflex High/Eflex RT-SVX063G-EN...

  • Page 29: General Installation Requirements

    Installation General Installation ☐ All field-installed wiring must comply with NEC and applicable local codes. Requirements Field Installed Control Wiring The checklist below is a summary of the steps required to successfully install a Commercial rooftop unit. This ☐ Complete the field wiring connections for the variable checklist is intended to acquaint the installing personnel air volume controls as applicable.

  • Page 30: Voltage Supply

    Installation and the other end routed to a suitable sensing location percent Voltage Imbalance = within the controlled space. Voltage Supply where; Electrical power to the unit must meet stringent AV (Average Voltage) = requirements for the unit to operate properly. Measure each leg (phase-to-phase) of the power supply.

  • Page 31: Electrical Data

    Installation Electrical Data For units using heaters equal to or greater than 50 kW: MCA = 1.25 x (LOAD1 + LOAD2 + LOAD4) + (1.0 x Electrical Service Sizing LOAD3) To correctly size electrical service wiring for a unit, find the The nameplate MCA value will be the larger of the cooling appropriate calculations listed below.
  • Page 32 Installation Service Sizing Data Table 3. Compressor electrical service sizing data (20 to 75 tons) 200 V 230 V 460 V 575 V No. of Tons Compressors RLA (ea.) LRA (ea.) RLA (ea.) LRA (ea.) RLA (ea.) LRA (ea.) RLA (ea.) LRA (ea.) 40.3 267.0...
  • Page 33 Installation Table 4. Condenser fan electrical service sizing data (20-75 ton) No. of 200 V 230 V 460 V 575 V Tonnage FLA (ea.) FLA (ea.) FLA (ea.) FLA (ea.) Motors 20 Std 20 Low Ambient 25 Std 25 Low Ambient 30 Std 30 Low Ambient 40 Std...
  • Page 34 Installation Table 6. Electrical service sizing data — Supply fan motors — 20 to 75 tons 200 V 230 V 460 V 575 V FLA (ea.) FLA (ea.) FLA (ea.) FLA (ea.) Motor Horsepower Supply Fan Motor (4 pole) with VFD Bypass 14.1 14.1 21.0...
  • Page 35 Installation Table 8. Electrical service sizing data (amps) - control power transformer heating and cooling modes - 20 to 75 tons Voltage Digit 2 Unit Function Nom Tons Table 9. Voltage utilization range Unit Voltage Voltage Utilization Range 200/60/3 180-220 230/60/3 207-253 460/60/3...

  • Page 36: Main Unit Power Wiring

    Installation Main Unit Power Wiring WARNING Proper Field Wiring and Grounding Table 10, p. 37 lists the field connection wire ranges for both the main power terminal block 2XD1 and the optional Required! main power disconnect switch 2QB1. Service Sizing Data Failure to follow code could result in death or serious lists the component electrical data.
  • Page 37 Installation Figure 16. Typical field power wiring (20 to 75 ton) RE 200/230 ONLY: ADDITIONAL FIELD SUPPLIED DISCONNECT SWITCH FIELD SUPPLIED DISCONNECT SWITCH PITCH PITCH POCKET POCKET 3-WIRE POWER SUPPLY PLUS GROUND 3-WIRE POWER SUPPLY PLUS GROUND Table 10. Customer connection wire range Units with Main Power Terminal Block (All Voltages) Units with Main Power Disconnect Switch (All Voltages) Block Size...

  • Page 38: Supply Fans

    Installation Supply Fans removed, shown in Figure 17, p. 38. Gently spin each fan to verify there is no wheel-to-cone interference. If Remove Shipping Tie Down adjustment is required, loosen fan shaft set screw and reposition fan to get correct wheel/cone overlap. Remove supply fan shipping tie down hardware.

  • Page 39: Installation

    Installation Figure 19. Supply fan cone overlap Note: Use only what is required and discard excess tubing. Units with Statitrac 1. Open the control panel, and locate the Space Pressure tubing connector. 2. Connect one end of the field provided 1/4" (length 50- 100 ft.) or 3/8"...

  • Page 40: Refrigeration System

    Installation Figure 21. Pressure sensing Figure 22. Condensate trap installation Top Port Connection 2' x 3/16" OD Tubing Factory Provided Post Outside Air Pneumatic Tubing Pressure (Field Installed) Sensor 1.25” NPT Female Connection Sensor Mounting Bracket Attached to Roof Field Supplied Condensate Piping 4.5”...

  • Page 41: Compressor Crankcase Heaters

    Installation Figure 24. Condensate drain locations for units with located inside the gas heat control compartments. staggered indoor coils Note: For conversion from Natural Gas to Propane refer to the LP Converstion Kit (RT-SVN033*-EN) for part numbers and installation instructions. WARNING Hazardous Gases and Flammable Vapors!
  • Page 42 Installation Following the guidelines listed below will enhance both the Failure to use a pressure regulating device will result in installation and operation of the furnace. incorrect gas pressure, which can cause erratic operation due to gas pressure fluctuations as well as Note: In the absence of local codes, the installation must damage the gas valve.

  • Page 43: Connecting The Gas Supply Line To The Furnace Gas Train

    Installation Figure 26. Gas heat component dimensions Flue Vent Heat access (850 MBH shown) Gas pipe Combustion entry with inlet rain shield grommet CPVC Drain (40-75 ton only) Note: See gas piping figures for NPT size Tonnage Heater Size 250, 350 & 500 20–30 6.75 7.59...
  • Page 44 Installation Table 13. Sizing natural gas pipe mains and branches Gas Input (Cubic Feet/Hour) Gas SupplyPipe Run (ft) 1¼" Pipe 1½" Pipe 2" Pipe 2½" Pipe 3" Pipe 4" Pipe 1,060 1,580 3,050 4,860 8,580 17,500 1,090 2,090 3,340 5,900 12,000 1,680 2,680...
  • Page 45 Installation Table 16. Propane (LP) – high altitude rating reduction orifice chart Heater size 0-2000' 3000' 4000' 5000' 6000' 7000' 8000' 9000' 10000' (MBh) 1.75 mm 1.65 mm 1200 1.9 mm Note: Orifice sizes required to reduce input ratings by 4% per every 1000’ above 2000’ per the National Fuel Gas Code Z223.1. 850,000 Btu/Hr at Sea Level input is 737,000 Btu/Hr RT-SVX063G-EN...
  • Page 46 Installation Figure 27. Unit gas trains 250/350 MBh 2 stage/ Figure 28. Unit gas trains 250/350 MBh ultra modulating modulating and 500 MBh 2 stage/modulating Modulating valve (not on 2-stage) Modulating valve (not on 2-stage) One stage valve on Modulating, two stage One stage valve on 2-stage valves...

  • Page 47: Flue Assembly And Rain Shield

    Installation Figure 29. Unit gas trains 500 MBh ultra modulating Figure 30. Unit gas trains 850/1200 MBh 4 stage/ modulating/ultra modulating Modulating valve One stage valve UL 536 Flexible Modulating valve Metallic Hose (not on 4-stage) One stage valves One stage valve UL 536 Flexible Metallic Hose One stage valve...

  • Page 48: Electric Heat Units

    Installation gas heat section. It is extremely important that the on the dampers so that they are fully closed at 0% condensate be piped to a proper drain. Refer to the command. appropriate illustration in Figure 26, p. 43 for the location of 5.
  • Page 49 Installation that provides the supply power to the unit terminal block listed in Table 18, p. 51 Table 19, p. 52 for outside or the unit mounted disconnect switch. air damper position 1, then determine the appropriate pressure increase needed. Identify the correct return 3.
  • Page 50 Installation Figure 31. Outside air damper OUTSIDE AIR DAMPERS RETURN AIR DAMPERS BOTTOM VIEW OUTSIDE AIR DAMPERS BOTTOM VIEW RETURN AIR DAMPERS RT-SVX063G-EN...
  • Page 51 Installation Table 17. Outside air damper travel adjustment Outside Air Damper Crank Arm Hole Return Air Damper Crank Configuration Arm Hole Configuration Position 1 - 3 90° 9 - 11 90° 1 - 4 75° 9 - 12 75° 1 - 6 60°...
  • Page 52 Installation Table 19. Outside air damper pressure drop — Traq™ Traq™ Outside Air Damper Position 20, 25 and 30 Ton 4000 0.07 0.08 0.09 0.17 0.26 0.89 6000 0.15 0.18 0.21 0.40 0.64 2.82 7000 0.20 0.26 0.31 0.56 0.90 8000 0.26 0.35...
  • Page 53 Installation Table 20. Return air pressure increase (continued) Return Air Damper Position 14000 0.00 0.11 0.25 0.43 16000 0.00 0.13 0.28 0.55 18000 0.00 0.14 0.31 0.67 20000 0.00 0.15 0.33 0.81 22000 0.00 0.16 0.35 0.96 24000 0.00 0.17 0.37 1.13 Units with Dual Actuators (60, 70 and 75 Ton)
  • Page 54 Installation Table 21. Outside Air Pressure Drop (inches w.c.) – No Traq™ (continued) No Traq™ Outside Air Damper Position 100% 22000 0.35 0.72 1.11 1.58 24000 0.40 0.85 1.33 1.90 26000 0.47 0.99 1.57 2.24 28000 0.53 1.14 1.83 2.61 30000 0.60 1.31...
  • Page 55 Installation Figure 32. Actuator stroke limit adjustment Figure 33. Actuator auto-scaling feature details Angle of Rotation Limiter Scale Shows % of Full Stroke Control Reversing Switch Must Be Set to Match Spring Return Direction RT-SVX063G-EN...

  • Page 56: Startup The Unit

    Startup the Unit Electrical Phasing Use the following in conjunction with the “Trane Startup Checklist,” p. 62, to ensure that the unit is properly installed WARNING and ready for operation. Be sure to complete all of the procedures described in this section before starting the unit Hazardous Voltage! for the first time.
  • Page 57 Startup the Unit WARNING Rotating Components! Failure to disconnect power before servicing could result in rotating components cutting and slashing technician which could result in death or serious injury. During installation, testing, servicing and troubleshooting of this product it may be necessary to work with live and exposed rotating components.

  • Page 58: Direct-Drive Supply Fan Speed

    Startup the Unit Direct-Drive Supply Fan Speed Table 24. RPM and Hz ranges for DDP supply fan speed adjustments (continued) Adjustment Fan Speed (RPM) VFD Frequency Range (Hz) Units equipped with a DDP Supply Fan do not use belt/ sheave arrangements to adjust fan speed. This adjustment (if required) is made through the Fan VFD 1200 by setting the supply fan Min/Max frequency at each supply...

  • Page 59: Gas Furnace Startup

    Startup the Unit High-Fire Adjustment Table 26. K-factor for relief fans Fan Model K-factor WARNING K3G500 Hazardous Gases and Flammable K3G560 Vapors! Failure to observe the following instructions could Use this equation to determine flow for relief fans: result in exposure to hazardous gases, fuel substances, or substances from incomplete combustion, which could result in death or serious Where K is determined based on the fan model number, ρ...

  • Page 60: Low-Fire Adjustment (250 And 350 Mbh Two Staged Only)

    Startup the Unit Low-Fire Adjustment (250 and 350 MBH If adjustment is needed, adjust the regulator on the valve. Refer to , p. 60 for two stage valve on 250 & 350 Two Staged only) MBh two stage, and Figure 35, p. 61 for one stage 1.

  • Page 61: Final Unit Checkout

    Startup the Unit Final Unit Checkout Figure 35. One stage valve adjustment After completing all of the checkout and start-up procedures outlined in the previous sections (i.e., operating the unit in each of its Modes through all available stages of cooling and heating), perform these final checks before leaving the unit: Adjustment...

  • Page 62: Trane Startup Checklist

    Important: This checklist is not intended as a substitution for the contractor’s installation instruction. This checklist is intended to be a guide for the Trane Important: Except where noted, it is implied that the Trane technician just prior to unit 'startup'. Many of the...

  • Page 63: Critical Control Parameters And Dry Bulb Changeover Map

    Startup the Unit Table 27. Startup checklist (continued) Completed? Electric heat circuits have continuity Perform electric heat start up procedure Verify heating system matches name plate Gas Heat (if applicable) Gas heat piping includes drip leg previously installed by installing contractor Gas heat flue assembly fully installed Gas heat condensate line and heat tape installed where applicable Verify heating system matches name plate...
  • Page 64 Startup the Unit Figure 37. Dry bulb changeover map RT-SVX063G-EN...

  • Page 65: Sequence Of Operation

    Sequence of Operation NOTICE set to “True” to allow this function to operate. Mechanical cooling (DX) is available for Rapid Restart if the Outdoor Compressor Failure! Air Temperature is above the Low Ambient Lockout Failure to follow instruction below could result in setpoint.

  • Page 66: Timed Override

    Occupied Unoccupied Not Zero Bypass installed and may be wired or wireless. Field installed wired sensors are available from Trane and many other sources. Unoccupied Any State Zero Unoccupied In every case, the correct type of sensor must be used.

  • Page 67: Operating Modes

    Sequence of Operation Cool flow control is enabled, operating mode transitions, and capacity control enables. Cool mode is reported when the control objective is to provide cooling to maintain building comfort. Direct • Single Zone VAV (Space Temperature) expansion cooling is the primary cooling source. Cool Single Zone VAV control units will also accept a mode is also reported when Economizer cooling, Maximum Heat command via Heat Cool Mode...

  • Page 68: Circuit

    Sequence of Operation Stopped is a Unit mode when control is prevented from Shutting Down running. For example, if External Auto/Stop binary input is The circuit is preparing to de-energize the compressor. For active, External Auto Stop will be listed as a sub-mode. example, Diagnostic Shutdown –...

  • Page 69: Night Purge

    Sequence of Operation decrease the space temperature, as efficiently as possible, operates at max speed on Constant Volume Units. before building occupancy. Ventilation air is not provided Variable air volume discharge air control units will operate during Pre Cool. the supply fan to the duct static pressure setpoint and report Heat Cool Mode Status as Heat, if the installed heat Space temperature control units must be in Cool or Auto type allows modulating air flow.

  • Page 70: Supply Fan Proving Operation And Method

    Sequence of Operation Heat/Cool state, the supply fan speed will be controlled as – The Modbus communicated command for supply required by unit type. fan will be set to OFF, and the communicated speed command will be set to 0%. •...

  • Page 71: Operation During Manual Override And Vom (Emergency Override)

    Sequence of Operation Outdoor Air Flow Compensation for 40 continuous seconds, the supply fan will indicate a No-Flow condition. The outdoor air damper minimum position is modulated to provide outdoor air based on a variable supply fan speed. Operation during Manual Override and When supply fan increases speed the outdoor air damper VOM (Emergency Override) Modes minimum position is reduced, to prevent over ventilation.

  • Page 72: Relief Fan And Space Static Pressure

    Sequence of Operation Table 31. Outdoor air damper minimum ventilation control Traq Outdoor Air Flow Demand Control Description Outdoor Air Damper Compensation Ventilation Controlling Setpoints Enabled/Active Disabled Disabled Damper controls to outdoor Setpoint: air minimum flow setpoint Outdoor Air Minimum Flow Setpoint Active Outdoor Air Minimum Flow Setpoint Status...

  • Page 73: Space Static Pressure Control With

    Sequence of Operation Multi Zone-VAV and Constant when the unit is economizing and bringing in large quantities of outside air. Volume - Discharge Temperature Space Static Pressure Control with Units Statitrac™ These unit types provide Discharge Air Temperature Statitrac™ is an option. Space static pressure control Control in all heat, cool, and occupancy modes of operation will become active when the supply fan is On and operation.

  • Page 74: Discharge Air Reset

    Sequence of Operation Discharge Air Reset temperature setpoint. For Example: As space temperature cooling load increases, space temperature control will Discharge Air Reset is a method to save energy by calculate a lower Discharge Air Temperature setpoint and resetting the discharge air temperature as heating and therefore will increase cooling capacity.

  • Page 75: Space Temperature Control Units

    Sequence of Operation Space Temperature Control operation in Occupied Heat and Occupied Cool modes of operation; however, the Discharge Air Control method is Units used for all other modes. The table below summarizes each mode of operation and the control method applied. Single Zone VAV and Constant Volume Space Temperature See Operating Modes section for more details units use the Space Temperature Control sequence of...

  • Page 76: Temperature Control

    Sequence of Operation General Compressor Staging the heat type installed. The minimum fan speed can be 100%. See Heat Types for more information. Compressor staging will occur based on the unit’s As the Discharge Air Temperature Setpoint increases, the algorithms cooling capacity request and the specific heat capacity increases stages and/or modulates.

  • Page 77: Alternate Staging Sequence

    Sequence of Operation Compressor Staging with Variable Speed Compressor Inhibits Compressors Inhibits of compressors are typically recoverable without requiring user interaction. The inhibit of a compressor will Units with Variable Speed Compressors will always attempt be immediate once the request is issued. Inhibits originate to start the variable speed compressor first.

  • Page 78: Compressor Protections

    Sequence of Operation compressor running per circuit the compressor with a than the normal threshold value. These values are higher wear calculation will be chosen to stop. dependent on unit model. Ties The Low Compressor Suction Pressure Start Inhibit and Low Compressor Suction Pressure Limit work together to If multiple compressors with equal wear are available for reduce the likelihood of Low Compressor Suction Pressure...

  • Page 79: Compressor Discharge Saturated

    Sequence of Operation If the discharge pressure limit is preventing loading, holding delayed shutdowns are possible. Shutdowns may be or forcing unloading, an indication will be made to the user temporary or require a manual reset. interface. Loss of Charge Detection Note: Note: The discharge pressure limit function assumes that all available condenser fans are running and This function detects excessive refrigerant leakage.

  • Page 80: Head Pressure Control

    Sequence of Operation As frost builds on a coil, thermal resistance increases and Figure 40. Piping diagram with hot gas bypass airflow decreases. Frost buildup on the coil can also cause instabilities in superheat control. If suction saturated temperature drops below a threshold, Frost Protection will inhibit capacity in an attempt to melt the frost and allow the unit to run more efficiently.

  • Page 81: Exv Control

    Sequence of Operation EXV Control (Electronic control mode is to maintain suction pressure or differential pressure within the compressor operating map. Expansion Valve) In situations where the superheat rapidly falls to very low Electronic expansion valves (EXVs) control suction values, special control modes are necessary to dry out superheat to ensure the complete and efficient evaporation excess refrigerant liquid in the evaporator, suction line, and of refrigerant in the evaporator.

  • Page 82: Operating Modes

    Sequence of Operation Table 33. EXV Control States (continued) Control State Description Running – Pre-Position Hold Time After a compressor on the circuit starts, but before automatic control begins. Running – Suction Superheat Control Normal automatic superheat control Running – Suction Pressure Control Controlling suction pressure instead of suction superheat, to maintain adequate compressor pressure ratio or to limit high suction saturated temperature.

  • Page 83: Dehumidification Control - Occupied

    Sequence of Operation Space Temperature Control Units In minimum ventilation mode and the damper feedback position is >10% of the damper commanded value for 5 Space temperature units internally use dew point to continuous minutes. manage space humidity control. When hot gas reheat is FDD: Outdoor Air Damper Not Modulating inactive, the cooling control calculates a suitable setpoint to manage both space temperature and space humidity.

  • Page 84: Gas Heat

    Sequence of Operation Table 35. Multi zone-VAV unit – Supply fan operation External Heat Staged Gas Modulating Gas Staged Electric Heat Modulating Electric Heat Occupied Heat Full Modulate Full Modulate Modulate Maximum Heat Full Full Full Full Full Morning Warm Up Full Full Full...

  • Page 85: Electric Heat - Staged

    Sequence of Operation 3. The control will then enter the pre-purge cycle where Note: The modulating gas heaters are factory adjusted for the inducer will run at the programmed purge pressure. safe operation and to reach the nameplate rated During this cycle, the control will look for the air firing MBH for most areas of the country.

  • Page 86: Unoccupied Cooling

    Sequence of Operation Multi Zone-VAV units operate the supply fan under duct Warm Up, Pre Cool, Daytime Warm Up) the supply fan is static pressure control, unless commanded to go to operated under Symbio 800 control. Supply fan speed will Maximum Heat.

  • Page 87: External Outdoor Air Damper

    Sequence of Operation External Outdoor Air Damper Control Important: A valid space static pressure sensor is not required for external relief fan control; To control the outdoor damper directly, via TGP2 or an therefore, proper building static pressure external control, a setpoint can be written to Economizer control must be considered.

  • Page 88: Emergency Stop

    Sequence of Operation download, the Service Tool will send the Symbio 800 a • Power is cycled. Front Panel Stop command. A Service Tool screen is • A Manual Overrides Timer expires and ALL manual displayed giving the user an opportunity to allow or cancel overrides are cleared.

  • Page 89: Emergency Override

    Sequence of Operation When all VOM inputs are open, within 15 seconds, VOM CLOSED, and after Unit Power Up Delay is honored the terminates. All unit components will be reset OFF or unit will start normal operation. Table 40. Ventilation override mode VOM Input OUTPUT OPERATION...

  • Page 90: Operating Mode Off And Normal Operating Modes

    If both points are True (locked out) at the same time, both Command are not locked-out; the control will limit capacity will be honored. Trane Graphical Programming (TGP2) can based on active Cooling Capacity Enable, Primary Heat be used to control these points.

  • Page 91: Condensate Overflow

    Sequence of Operation Heat Primary Enable When a high condensate level is detected, the unit shuts down and a non-latching diagnostic is generated. A 72 Primary Heat Enable is a building automation interface hour timer is started at this point. If the condensate point used to limit all forms of primary heat installed in the overflow input returns to normal, the unit is allowed to equipment.

  • Page 92: Controls

    Controls Constant Volume System conditions that cause excessive motor temperature. These include rapid cycling, loss of charge, abnormally high Controls suction temperatures, excessive amperage, phase loss and low voltage Constant Volume Zone Panel (BAYSENS108*) CSHN Compressors This electronic sensor features four system switch settings PTC sensors are embedded in the motor windings of each (Heat, Cool, Auto, and Off) and two fan settings (On and Scroll compressor.
  • Page 93 Controls Figure 42. Compressor and condenser fan locations and names Refrigeration Systems: Refrigeration Systems: 20H, 20V, 25H, 25V, 30H, 30V 25S, 30S Circuit 1 Circuit 1 Condenser Condenser Fans & Fans & Motors Motors Comp 1A Comp 1B Comp 1C Comp 1A Comp 1B (2M1)
  • Page 94 Controls Table 42. Compressor staging — 25S, 30S Table 48. Compressor staging — 40V Stage Comp 1A Comp 1B Comp 1C Capaci- Comp Comp Comp Speed Speed ty Step — — — — 1800 5202 — — — 1998 5400 —...
  • Page 95 Controls Table 53. Compressor staging — 75V (continued) Table 53. Compressor staging — 75V (continued) Variable Speed Compressor. Comp Comp Comp Comp Speed Speed Dehumdification staging, 1B starts before 2B. pacity Step 2100 4980 1500 4380 RT-SVX063G-EN...

  • Page 96: Performance Data

    Figure 44. 20, 25 and 30 ton, 16.5 inches - 9 blade - 100% width supply fan Please see notes below for all supply fan curves. For additional information or support, contact your local Trane sales office or Trane representative. 3000 RPM...
  • Page 97 Performance Data Figure 46. 20, 25 and 30 ton, 20.0 inch - 9 blade - 100% Figure 48. 40, 50 and 55 ton, 18.2 inch - 9 blade - 100% width supply fan width supply fan 2500 RPM 2700 RPM 2300 RPM 2500 RPM 2100 RPM...
  • Page 98 Performance Data Figure 50. 40, 50 and 55 ton, 24.5 inch - 9 blade - 80% Figure 52. 60, 70 and 75 ton, 22.2 inch - 9 blade - 100% width supply fan width supply fan 2100 RPM 2200 RPM 2000 RPM 2100 RPM 1900 RPM...

  • Page 99: Relief Fan Curves

    Relief Fan Curves Figure 56. 30 ton, 12 hp relief fan, two-fan array Please see notes below for all supply fan curves. For additional information or support, contact your local Trane 1980 RPM sales office or Trane representative. 1900 RPM...
  • Page 100 Performance Data Figure 59. 50 and 55 ton, 12 hp relief fan, two-fan Figure 61. 60, 70 and 75 ton, 16 hp relief fan, two-fan array array 1800 RPM 1980 RPM 1900 RPM 1700 RPM 1800 RPM 1600 RPM 1700 RPM 1500 RPM 1600 RPM 1400 RPM...

  • Page 101: Component Static Pressure Drops

    Performance Data Component Static Pressure Drops Table 54. Static pressure drops — relief dampers Relief Damper Pressure Drop (in Nominal Tons w.c.) 2,000 0.04 4,000 0.16 20-40 Single Fan 6,000 0.37 8,000 0.65 10,000 1.02 4,000 0.04 6,000 0.09 8,000 0.16 10,000 0.26...
  • Page 102 Performance Data RT-SVX063G-EN...
  • Page 103 Performance Data RT-SVX063G-EN...

  • Page 104: Refrigeration

    Performance Data Refrigeration Standard Ambient Condenser Fans Standard ambient units stage condenser fans down to a Electronic Compressor Protection minimum of one fan per circuit. All standard ambient units Module (CPM) ship with the Symbio™ controller set to allow mechanical cooling down to 50°F outdoor temperature.

  • Page 105: Service And Maintenance

    This will remove power from no responsibility for the performance or operation of the fan motor and stop operation. our equipment in which ultraviolet devices were installed outside of the Trane factory or its approved suppliers. Table 58. Filter data Evaporator Filters Final Filters 2"...
  • Page 106 Service and Maintenance Table 58. Filter data (continued) Evaporator Filters Final Filters 2" Panel Filters (MERV 4 4" Panel Filters (MERV 8 Cartridge Filters Cartridge Filters 2" Prefilters 2" Prefilters or MERV 8) or MERV 14) Unit Tons Face Face Face Face Size of...
  • Page 107 Service and Maintenance Table 62. 2" and 4" panel filters (70H/V, 75S, 75H/V ton) 20x24 20x24 20x24 24x24 24x24 20x24 20x24 20x24 24x24 24x24 Table 63. Cartridge filters (20-30 ton) 16x20 16x20 16x20 16x20 20x20 20x20 20x24 20x24 20x20 20x20 20x24 20x24 Table 64.

  • Page 108: Monthly Maintenance

    Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods ☐ Manually rotate the condenser fans to ensure free for discharge of capacitors. Verify with a CAT III or IV movement and check motor bearings for wear.

  • Page 109: Coil Cleaning

    Vapors! condenser coil applications, seek pressure coil wand Failure to observe the following instructions could extension through the local Trane Parts Center. result in exposure to hazardous gases, fuel 4. When cleaning evaporator and reheat coils, mix the substances, or substances from incomplete detergent with water according to the manufacturer’s...

  • Page 110: Scroll Compressor Replacement

    The units described in this manual use R-410A refrigerant which operates at higher pressures than R- 22. Use ONLY R-410A rated service equipment or components with these units. For specific handling concerns with R-410A, please contact your local Trane representative. RT-SVX063G-EN...
  • Page 111 Service and Maintenance Refrigeration Pressure Curves Important: Do Not release refrigerant to the atmosphere! If adding or removing refrigerant is required, the Please refer to “Pressure Curves,” p. 112 to locate the service technician must comply with all curve that corresponds to the unit’s refrigeration system. federal, state, and local laws.
  • Page 112 Service and Maintenance Pressure Curves Figure 64. Pressure curve — 20 tons high efficiency 20T High Efficiency 105°F Ambient 95°F Ambient 85°F Ambient 75°F Ambient 65°F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F. Figure 65. Pressure curve — 20 tons eFlex variable speed 20T eFlex Variable Speed 105 F Ambient 95 F Ambient...
  • Page 113 Service and Maintenance Figure 66. Pressure curve — 25 tons standard efficiency 25T Standard Efficiency 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F Figure 67.
  • Page 114 Service and Maintenance Figure 68. Pressure curve — 25 tons eFlex variable speed 25T eFlex Variable Speed 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 19-23°F Figure 69.
  • Page 115 Service and Maintenance Figure 70. Pressure curve — 30 tons high efficiency 30T High Efficiency 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F Figure 71.
  • Page 116 Service and Maintenance Figure 72. Pressure curve — 40 tons standard efficiency 40T Standard Capacity 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F Figure 73.
  • Page 117 Service and Maintenance Figure 74. Pressure curve — 40 tons eFlex variable speed 40T eFlex Variable Speed - circuit 1 only (Use 40T Standard Capacity for circuit 2) 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F...
  • Page 118 Service and Maintenance Figure 76. Pressure curve — 50 tons high efficiency 50T High Efficiency 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F Figure 77.
  • Page 119 Service and Maintenance Figure 78. Pressure curve — 55 tons standard efficiency 55T Standard Capacity 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F Figure 79.
  • Page 120 Service and Maintenance Figure 80. Pressure curve — 55 tons eFlex variable speed 55T eFlex Variable Speed - circuit 1 only (Use 55T Standard Capacity for circuit 2) 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F...
  • Page 121 Service and Maintenance Figure 82. Pressure curve — 60 tons high efficiency 60T High Efficiency 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F Figure 83.
  • Page 122 Service and Maintenance Figure 84. Pressure curve — 70 tons standard efficiency 70T Standard Capacity 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F Figure 85.
  • Page 123 Service and Maintenance Figure 86. Pressure curve — 70 tons eFlex variable speed 70T eFlex Variable Speed - circuit 1 only (Use 70T Standard Capacity for circuit 2) 105 F Ambient 95 F Ambient 85 F Ambient 75 F Ambient 65 F Ambient Suction Pressure, PSIG Note: Full load acceptable subcooling range: 13-23°F...
  • Page 124 • High superheat the manifold must be replaced. • A compressor mechanical failure The scroll compressor uses Trane OIL00079 (one quart • Occurrence of a motor burnout. container) or OIL00080 (one gallon container) without RT-SVX063G-EN...

  • Page 125: Cshd Compressors

    Service and Maintenance If a motor burnout is suspected, use an acid test kit Figure 91. CSHN (KIT15496) to check the condition of the oil. Test results will indicate an acid level has exceeded the limit if a burnout occurred. Oil test kits must be used for POE oil (OIL00079 for a quart container or OIL00080 for a gallon container) to determine whether the oil is acidic.

  • Page 126: Electrical Phasing

    Service and Maintenance Table 69. Oil charge per compressor pressure differential. Figure 93. eFlex variable speed tandem Compressor Pints Nozzle CSHD103 Inflow CSHD075-092 Fixed Combined speed suction CSHD105-161, VZH088 compressor flow CSHD175-183, VZH117 CSHN176-315, VZH170 14.2 CSHN374 15.2 Variable speed compressor Table 70.
  • Page 127 Reconnect the mains supply - the frequency Should replacing the VFD become necessary, the converter is now reset. replacement is not configured with all of Trane's operating g. Ensure parameter 14-22 Operation Mode has parameters. The VFD must be programmed before reverted back to “Normal Operation”.
  • Page 128 Service and Maintenance Table 71. Supply fan VFD programming parameters (continued) Description Parameter Setting Set to applicable unit power supply [102] 200-240V/60Hz for 208 & 230V/60Hz units [122] 440-480V/60Hz for 460V/60Hz units Grid Type [132] 525-600V/60Hz for 575V/60Hz units 0-06 [12] 380-440V/50Hz for 380 &...
  • Page 129 Service and Maintenance Table 71. Supply fan VFD programming parameters (continued) Description Parameter Setting [2] Controlword only 8-01 Control Site Control Timeout Time (s) [15] 15s 8-03 [2] Stop 8-04 Control Timeout Function Switching Frequency (kHz) [8] 8.0 KHz 14-01 Set based on motor nameplate voltage [177] for 208V motor Mains Voltage Fault level...
  • Page 130 Service and Maintenance Table 73. Condenser fan VFD programming parameters (continued) Descrtiption Parameter Setting Motor Nominal Speed (RPM) [1140] 1140RPM 1-25 Flying Start [1] Enabled 1-73 Min Speed for function at Stop 1-82 (Hz) [4] ETR Trip1 1-90 Motor Thermal Protection DC Hold/Preheat Current (%) [0] 0% 2-00...

  • Page 131: Eflex™ Compressor Vfd Programming Parameters

    131. or other energy storing components provided by 5. Press [OK]. Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods Note: Parameter '4-18 Current Limit' for field installed for discharge of capacitors. Verify with a CAT III or IV...

  • Page 132: Symbio 800 Replacement

    Service and Maintenance Symbio 800 Replacement Final Process Record the unit data in the blanks provided. See Programming Guide (RT-SVP011*-EN) Symbio UI section for instructions to replace and upgrade the Symbio 800 controller. RT-SVX063G-EN...
  • Page 133 Service and Maintenance RT-SVX063G-EN...

  • Page 134: Wiring Diagrams

    Wiring Diagrams Table 76. Wiring diagram matrix Description Number Power 1213-2567 POWER SCHEMATIC, 20T-75T - AIRFLOW AND CONTROLS 1213-2568 POWER SCHEMATIC, 20T-75T - AIRFLOW AND CONTROLS W/ VFD BYPASS POWER SCHEMATIC, 40T-75T - REFRIGERATION 1213-2570 POWER SCHEMATIC, 40T-75T - REFRIGERATION WITH COMPRESSOR VFD 1213-2571 POWER SCHEMATIC, 40T-75T - REFRIGERATION WITH COND FAN VFD 1213-2572...
  • Page 135 Wiring Diagrams Table 76. Wiring diagram matrix (continued) Description Number SCHEMATIC - ELECTRIC HEAT WITH SCR MODULATING - 90KW - 208V/240V, 190KW - 480V 1213-2847 1213-2848 SCHEMATIC - ELECTRIC HEAT WITH SCR MODULATING - 1200KW - 208V/240V 1213-2849 CONTROLS SCHEMATIC, MODULATING ELECTRIC HEAT - 30KW -190KW - 208V/240V & 480V Component Layout - Control Panels 1213-3320 COMPONENT LAYOUT - UNIT CONTROLS PANEL...

  • Page 136: Warranty And Liability Clause

    PRODUCTS COVERED - This warranty* is extended by implied warranties of merchantability and fitness for Trane Inc. and applies only to commercial equipment rated particular use. In no event shall the Company be liable for 20 Tons and larger and related accessories.
  • Page 137 Notes RT-SVX063G-EN...
  • Page 138 Notes RT-SVX063G-EN...
  • Page 139 Notes RT-SVX063G-EN...
  • Page 140 For more information, please visit trane. com or tranetechnologies.com. Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

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