Trane INTELLIPAK RT-SVX10C-EN Installation And Operating Manual
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Trane INTELLIPAK RT-SVX10C-EN Installation And Operating Manual

Trane INTELLIPAK RT-SVX10C-EN Installation And Operating Manual

Commercial single-zone rooftop air conditioners with cv or vav controls
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™ ™ ™ ™ ™
INTELLIPAK
Commercial Single-Zone Rooftop Air
Conditioners with CV or VAV Controls
Models
"5" and later Design Sequence
SAHF -C20, -C25, -C30, -C40, -C50, -C55, -C60, -C70, -C75
SEHF -C20, -C25, -C30, -C40, -C50, -C55, -C60, -C70, -C75
SFHF -C20, -C25, -C30, -C40, -C50, -C55, -C60, -C70, -C75
SLHF -C20, -C25, -C30, -C40, -C50, -C55, -C60, -C70, -C75
SSHF -C20, -C25, -C30, -C40, -C50, -C55, -C60, -C70, -C75
SXHF -C20, -C25, -C30, -C40, -C50, -C55, -C60, -C70, -C75
"X" and later Design Sequence
SXHG -C90, -D11, -D12, -D13 SEHG -C90, -D11, -D12, -D13
SFHG -C90, -D11, -D12, -D13 SLHG -C90, -D11, -D12, -D13
SSHG -C90, -D11, -D12, -D13
TM
With 3-D
© 2004 American Standard Inc. All rights reserved
Installation
Operation
Maintenance
Library
Product Section
Product
Model
Literature Type
Sequence
Date
File No.
Supersedes
Scroll Compressors
®
Rooftop Air Conditioning (Comm. SZ, 20 - 130 Tons)
SAH_, SEH_, SFH_, SLH_, SSH_, SXH_
Installation/Operation/Maintenance
SV-UN-RT-RT-SVX10C-EN-01-05
- Units whose model numbers
have a "2" in digit 20 are certified
by the Canadian Standards
Association (CSA).
Trane has a policy of continuous product and product data improvement and
reserves the right to change design and specifications without notice. Only
qualified technicians should perform the installation and servicing of
equipment referred to in this publication.
RT-SVX10C-EN
Service Literature
Unitary
January 2005
RT-SVX10C-EN 11/04
- Units whose model numbers
have a "1" in digit 20 are certified
by Underwriters Labortory.
10C

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  • Page 1 SFHG -C90, -D11, -D12, -D13 SLHG -C90, -D11, -D12, -D13 by the Canadian Standards SSHG -C90, -D11, -D12, -D13 Association (CSA). Trane has a policy of continuous product and product data improvement and With 3-D Scroll Compressors reserves the right to change design and specifications without notice. Only qualified technicians should perform the installation and servicing of equipment referred to in this publication.

  • Page 2: About The Manual

    About The Manual RT-SVX10B-EN (October 2003) Note: This document is customer property and Updated issue of this manual; provides specific installation, must be retained by the unit's owner for use by operation and maintenance instructions for S_HF with “6” maintenance personnel. and later design sequence and S_HG with “Y”...

  • Page 3: Table Of Contents

    Table of Contents Section One Section Four About The Manual ............... 2 Unit Start-Up ..............55 Literature Change History ..........2 Cooling Sequence of Operation ........55 Overview of Manual ............2 Gas Heating Sequence of Operation ......56 Fenwal Ignition System ..........56 Honeywell Ignition System ..........

  • Page 4: General Information

    Digit 16 - Fresh Air Section 3 = 1", 4 = 1.25", 5 = 1.5", 6 = 2". A = No Fresh Air 35 Y = Trane Communic ation Interfac e Module Low Heat Coil: A = .50", B = .75", B = 0-25% Manual 35 7 = LonTalk®...
  • Page 5 E = 1.50", F = 2.0", G = 2.5" Exhaust VFD w/o Bypass 34 0 = No communication module 5 = Space Pressure Control with 34 Y = Trane Communication Interface Module Exhaust and Bypass 34 7 = LonTalk® Communication Interface Module Digit 10 - Design Sequence...

  • Page 6: Hazard Identification

    - Avoid contact with the skin or eyes. Wear long- An optional roof curb, specifically designed for the S_HF sleeved, loose-fitting clothing, gloves, and eye and S_HG units is available from Trane. The roof curb kit protection. must be field assembled and installed according to the lat- est edition of SAHF-IN-5 or SXHG-IN-2 respectively.
  • Page 7 Trane Communications Interface Module (TCI - Optional 1U54 used on units with Trane ICS The Trane Communication Interface module expands com- munications from the unit UCM network to a Trane Tracer or a Tracer Summit system and allows external setpoint adjustment and monitoring of status and diagnos- tics.

  • Page 8: Input Devices & System Functions

    3S69) Generic Building Automation System Module 3S68 is a binary input device used on CV & VAV applica- (GBAS - Optional 1U51 used with non-Trane building tions to signal the RTM when the supply fan is operating. It control systems)
  • Page 9 General Information (Continued) 3S69 is a binary input device used on all rooftop units denser fans "On". If the operating fans can not bring the equipped with an exhaust fan. It is located in the exhaust condensing temperature to within the controlband, more fan section of the unit and is connected to the RTM (1U48).

  • Page 10: Constant Volume (Cv) Units

    High Duct Temp Thermostats (Optional 3S16, 3S17) Are binary input devices used on CV & VAV applications with a Trane Communication Interface Module (TCI). They provide "high limit" shutdown of the unit and requires a manual reset. They are factory set to open if the supply air temperature reaches 240 F, or the return air temperature reaches 135 F.

  • Page 11: Variable Air Volume (Vav) Units

    General Information (Continued) and the unit will return to discharge air control. If the occ Variable Air Volume (VAV) Units zone heating setpoint is less than the DWU terminate setpoint, the heat will turn off when the occ zone heat Occupied Heating - Supply Air Temperature setpoint is reached, but it will stay in DWU mode and cycle When a VAV units is equipped with "Modulating Heat", and...

  • Page 12: Space Temperature Averaging

    General Information (Continued) Space Temperature Averaging with Multiple Sensors Space Temperature Averaging Space temperature averaging for Constant Volume applica- tions is accomplished by wiring a number of remote sensors in a series/parallel circuit. The fewest number of sensors required to accomplish space temperature averaging is four.

  • Page 13: Variable Air Volume (Vav) Units

    General Information (Continued) Control Module Locations for S_HF 40, 60, 70 & Control Module Locations for S_HF 50 & 55 Ton Units 75 Ton Units J2-1 J2-1 1U49 1U49 Bracke Bracket 1U49 1U49 J1-1 J1-1 Heat MOD Heat MOD 1U48 1U48 Bracke Bracket...

  • Page 14: Space Temperature Averaging

    Table of Contents Section One Section Four About The Manual ............... 2 Unit Start-Up ..............55 Literature Change History ..........2 Cooling Sequence of Operation ........55 Overview of Manual ............2 Gas Heating Sequence of Operation ......56 Fenwal Ignition System ..........56 Honeywell Ignition System ..........

  • Page 15: Installation

    [ ] Check for material shortages. Refer to the Component Layout and Shipwith Location illustration. Trane will not assume any responsibility for equipment damage resulting from condensate accumulation If the job site inspection of the unit reveals damage or mate- on the unit's electrical and/or mechanical components.

  • Page 16: Installation

    Figure 3-1 Minimum Operation and Service Clearances for Single & Multiple Unit Installation...
  • Page 18 Installation (Continued) Table 3-1A Unit Dimensional Data Unit Dimensions Size 20 & 25 Ton 21'-9 3/4" 5'-3 1/8" 7'-6 1/2" 5'-8 15/16" 3'-9 5/16" 12'-6" 1" 1'-3 1/2" 30 Ton 21'-9 3/4" 5'-8 5/8" 7'-6 1/2" 6'-2 7/16" 4'-9 5/16" 12'-6"...
  • Page 20 Installation (Continued) Table 3-2A Unit Dimensional Data Unit Dimensions Size 20 & 25 Ton 24'-1 3/8" 5'-3 1/8" 7'-6 1/2" 5'-8 15/16" 3'-9 5/16" 13'-3" 1" 1'-3 1/2" 30 Ton 24'-1 3/8" 5'-8 5/8" 7'-6 1/2" 6'-2 3/8" 4'-9 5/16" 13'-3"...
  • Page 21 Figure 3-2C S_HG Cooling & Heating Units (90 through 130 Ton)
  • Page 22 Figure 3-3 Center-of-Gravity Data (See Note 1) Units with Units Units 100% without with Supply & Exhaust Fan Exhaust Fan Exhaust VFD Unit Unit Dim. Dim. Dim. Dim. Dim. Dim. Model Size SAHF C20 12' 6" 3' 8" 13' 5" 3' 10" 11' 10" 3' 9" 12' 9"...

  • Page 23: Roof Curb And Ductwork

    Step-by-step curb assembly and installation instructions perimeter. ship with each Trane accessory roof curb kit. Follow the in- structions carefully to assure proper fit-up when the unit is set into place.

  • Page 24: Pitch Pocket Location

    4. Lift the unit and position it over the curb and pedestal. (These units have a continuous base rail around the air If a Trane Curb Accessory Kit is not used: handler section which matches the curb. a. The ductwork can be attached directly to the 5.

  • Page 25: Pitch Pocket Location

    Figure 3-4 Typical Unit Rigging Figure 3-5 Unit Base & Roof Curb Section...

  • Page 26: General Unit Requirements

    Refer to "Field Installed Control Wiring" for guidelines. [ ] Check the unit for shipping damage and material short- age; file a freight claim and notify Trane office. Note: All field-installed wiring must comply with NEC and applicable local codes.

  • Page 27: Requirements For Steam Heat (Ssh_)

    Installation (Continued) Requirements for Steam Heat (SSH_) [ ] Use float and thermostatic traps in the system, as re- quired by the application. [ ] Install an automatic air vent at the top of the return water coil header. O/A Pressure Sensor and Tubing Installation (All units with Statitrac) [ ] Route properly sized steam piping through the base of the unit into the heating section.

  • Page 28: Condensate Drain Connection

    Installation (Continued) Condensate Drain Connections the unit's base rail. To locate and remove the shipping hard- ware, refer to Figure 3-7 and the following procedure. Each S_HF unit is provided with two or six 1" evaporator condensate drain connections (one on each side of the 1.

  • Page 29: Condensate Drain Connection

    Figure 3-7A Removing Scroll Compressor Shipping Hardware for 20 through 60 Ton Units Figure 3-7B Removing Scroll Compressor Shipping Hardware for 70 through 105 Ton Units Figure 3-7C Removing Scroll Compressor Shipping Hardward for 115 and 130 Ton Units...
  • Page 30 Installation (Continued) Removing Supply and Exhaust Fan Shipping Channels 2. Elevate the fan-and-motor assembly and slide the shipping (Motors >5Hp) channels out from between the fan assembly rails and the Each supply fan assembly and exhaust fan assembly for unit's base rail. S_HF units shipped with a motor larger than 5 HP is equipped with rubber isolators, (as standard), or optional 3.
  • Page 31 Figure 3-8 Removing Fan Assembly Shipping Hardware (20 through 75 Ton) Note: Fan assemblies not equipped with rubber or spring isolators have mounting bolts at the same locations and must not be removed. (90 through 130 Ton)

  • Page 32: O/A Sensor & Tubing Installation

    Installation (Continued) O/A Sensor & Tubing Installation Figure 3-9 An Outside Air Pressure Sensor is shipped with all units de- signed to operate on variable air volume applications or constant volume units with 100% modulating exhaust w/ Stratitrac. On VAV systems, a duct pressure transducer (3U60) and the outside air sensor is used to control the discharge duct static pressure to within a customer-specified parameter.

  • Page 33: Gas Heat Units (Sfh_)

    Installation (Continued) Gas Heat Units (SFH_) 6. Install a pressure regulator at the unit that is adequate to maintain 7" w.c. for natural gas while the furnace is oper- ating at full capacity. All internal gas piping is factory-installed and pressure leak- tested before shipment.

  • Page 34: Gas Heat Units (Sfh_)

    Installation (Continued) Table 3-4 Sizing Natural Gas Pipe Mains & Branches Sizing Natural Gas Pipe Mains & Branches Gas Input (Cubic Feet/Hour)* Notes: 1. If more than one unit is served by Gas Supply 1-1/4" 1-1/2" 2" 2-1/2" 3" 4" the same main gas supply, consider Pipe Run (ft) Pipe...

  • Page 35: Flue Assembly Installation

    Installation (Continued) Figure 3-10 (Continued) 4. Insert the tube on the flue assembly into the hole located in the vertical support for the heat section. Unit Gas Trains (Natural Gas) 5. Butt both flue tube sections together and center the pipe 1000 MBH clamp over joint.

  • Page 36: Steam Heat Units (Ssh_)

    Installation (Continued) use field supplied wiring to extend the control wires from 4. Install a "Gate" type valve in the supply branch line as the heater section to the valve. Two access holes are pro- close as possible to the hot water main and upstream of vided in the unit base as illustrated in Figure 3-2.

  • Page 37: Steam Heat Units (Ssh_)

    Installation (Continued) 13. Install a strainer in each return line before the steam 12. Position the outlet or discharge port of the steam trap at trap. least 12" below the outlet connection on the coil(s). This will provide adequate hydrostatic head pressure to over- 14.
  • Page 38 Figure 3-13 Steam Coil Piping (20 through 30 Ton Units) Steam Coil Piping (40 through 130 Ton Units)

  • Page 39: Disconnect Switch External Handle

    Installation (Continued) Disconnect Switch External Handle handling live electrical components perform these tasks. Failure to follow all electrical safety precautions (Factory Mounted Option) when exposed to live electrical components could result Units ordered with the factory mounted disconnect switch comes equipped with an externally mounted handle. This in death or serious injury.

  • Page 40: Disconnect Switch External Handle

    Installation (Continued) 2. If the unit is not equipped with an optional factory in- 3. Location for the electrical service entrance is illustrated in stalled non-fused disconnect switch, a field supplied dis- Figure 3-2. Complete the unit's power wiring connections connect switch must be installed at or near the unit in ac- onto either the main terminal block 1TB1, or the factory cordance with the National Electrical Code (NEC latest...
  • Page 41 Figure 3-14 (Continued) Typical Field Power Wiring (90 thru 130 Ton) Table 3-6 Customer Connection Wire Range...
  • Page 42 Table 3-7 Electrical Service Sizing Data (20 through 130 Ton) Unit 200/60/3, Nominal 230/60/3, Nominal 460/60/3, Nominal 575/60/3, Nominal Component(s) (180-220V Utiliz.) (207-253V Utiliz.) (414-506V Utiliz.) (517-633V Utiliz.) RLA (ea) LRA (ea) RLA(ea) LRA (ea) RLA (ea) LRA (ea) RLA (ea) LRA (ea) Compressor: A &...
  • Page 43 Table 3-7 (Continued) Electrical Service Sizing Data (20 through 130 Ton) Unit 200/60/3, Nominal 230/60/3, Nominal 460/60/3, Nominal 575/60/3, Nominal Component(s) (180-220V Utiliz.) (207-253V Utiliz.) (414-506V Utiliz.) (517-633V Utiliz.) Electric Heat FLA (3) FLA (3) FLA (3) FLA (3) (SEHF Only): 30 Kw 83.3 72.2...
  • Page 44 Figure 3-15 Power Wire Sizing and Protection Device Equations To correctly size the main power wiring for the unit, use the appropriate calculation(s) listed below. Read the load definitions that follow and use Calculation #1 for determining the MCA (Minimum Circuit Ampacity), MOP (Maximum Over current Pro- tection), and RDE (Recommended Dual Element fuse size) for SAH_ (Cooling Only) units, SXH_ (Extended Casing) units, SLH_ and SSH_ (Cooling with Wet Heat) units, and SFH_ (Cooling with Gas Heat) units Use Calculation #2 for SEH_ (Cool- ing with electric Heat) units.

  • Page 45: Disconnect Switch Sizing (Dss)

    Power Wire Sizing and Protection Device Equations (Continued) RDE = (1.5 x LOAD 1) + LOAD 2 + LOAD 3 + LOAD 4 The selected RDE value will be the larger of the cooling mode RDE value or the heating mode RDE value calculated above. Select a fuse rating equal to the RDE value.

  • Page 46: Field Installed Control Wiring

    Controls using 24 VAC Units equipped with a Trane Communication Interface (TCI) or LonTalk Communication Interface (LCI) option which uti- Before installing any connecting wiring, refer to Figure 3-2 lizes a serial communication link;...

  • Page 47: Variable Air Volume System Controls

    (Cooling Supply Air bility and timed override with override cancellation. It is used Temperature and Heating Warm-up temperature) per occu- with a Trane Integrated Comfort system. Refer to Table 3- pied period. The occupied cooling setpoint ranges between 10 for the Temperature vs Resistance coefficient.

  • Page 48: Variable Air Volume System Controls

    Installation (Continued) 4. VOM Mode “D” Priority 4 - Purge: Remote Minimum Position Potentiometer (5U70) -Supply fan - ON (BAYSTAT023A) -Inlet Vanes/VFD - 100% (if equipped) The remote minimum position potentiometer is used on -Exhaust fan - ON, Exhaust dampers - Open units with an economizer.
  • Page 49 Resistance The Generic Building Automation System (GBAS) module Temperature (F) (in. 1000 Ohms) Temperature (F) (in. 1000 Ohms) allows a non-Trane building control system to communicate 346.1 11.6 with the rooftop unit and accepts external setpoints in form 241.7 11.31 170.1...
  • Page 50 Figure 3-16A Typical Field Wiring Diagram for 20 through 130 Ton CV Control Options Refer to Wiring Notes on page 51...
  • Page 52 Field Connection Diagram Notes for 20 through 130 Ton CV or VAV Applications...
  • Page 53 Figure 3-17A Typical Field Wiring Diagram for 20 through 130 Ton VAV Control Option Refer to Wiring Notes on page 51...
  • Page 56 Table of Contents Section One Section Four About The Manual ............... 2 Unit Start-Up ..............55 Literature Change History ..........2 Cooling Sequence of Operation ........55 Overview of Manual ............2 Gas Heating Sequence of Operation ......56 Fenwal Ignition System ..........56 Honeywell Ignition System ..........

  • Page 57: Unit Start-Up

    Unit Start-Up Cooling Sequence of Operation door conditions are suitable for cooling (temperature and humidity are within specified setpoints), the RTM will at- tempt to maintain the zone temperature without using any Time delays are built into the controls to increase reliability compressors.

  • Page 58: Gas Heating Sequence Of Operation

    Unit Start-Up (Continued) Lead/Lag Operation When Lead/Lag is enabled, each time the system cycles af- If the flame rod (4U19) does not detect a flame at the time ter having stages 1 and 2 "On", "Stage 2" (K11 on SCM or of an initial call for heat or detects a loss of flame during K3 on MCM) and the corresponding condenser fan output operation, it will de-energize the gas valve and the inter-...

  • Page 59: Modulating Gas Sequence Of Operation

    Unit Start-Up (Continued) The system will operate in the low heat mode until there is eration. As you review the sequence of operations, keep the an additional call for heat is established by closing the K3 following in mind: contacts on the Heat Module. 1.

  • Page 60: Electric Heat Sequence Of Operation

    Unit Start-Up (Continued) A set of relay contacts are available for external use for Wet Heat Sequence of Operation heat fail (Information Only). Electrical circuitry for units with steam or hot water heat is limited to the connections associated with the modulating Note: The modulating gas heaters are factory adjusted for the proper air/gas ratio at minimum valve actuator (4U15) and the freezestat (4S12).

  • Page 61: Electrical Phasing

    Unit Start-Up (Continued) Use the checklist provided below in conjunction with the Units with Low Ambient option without HGBP - 0 F “General Unit Requirement" checklist” to ensure that the unit is properly installed and ready for operation. Be sure to Units with Low Ambient option with HGBP - +10 F complete all of the procedures described in this section be- fore starting the unit for the first time.

  • Page 62: Voltage Supply And Voltage Imbalance

    Unit Start-Up (Continued) Voltage Imbalance [ ] Observe the ABC and CBA phase indicator lights on the Excessive three phase voltage imbalance between phases face of the sequencer. The ABC indicator light will glow if the phase is ABC. If the CBA indicator light glows, will cause motors to overheat and eventually fail.

  • Page 63: Service Test Guide For Component Operation

    Table 4-1 Service Test Guide for Component Operation COMPONENT COMPONENT CONFIGURATION BEING TESTED Supply Exhaust Condenser Heat Stages Compressor Stage Econo Exhaust Unocc Fans Damper Damper IGV Output Relay * COMPRESSOR 20 thru 30 Ton A-Off/B-On Off Off Off K10-Off K11-On Closed Closed Closed Default...
  • Page 64 Table 4-1 (Continued) Service Test Guide for Component Operation COMPONENT COMPONENT CONFIGURATION BEING TESTED Supply Exhaust Condenser Heat Stages Compressor Stage Econo Exhaust Unocc (Cont.) Fans Damper Damper IGV Output Relay ** CONDENSER FANS 90 Ton 1A-2B3/2B14 1A-On/1B-Off Off Off Off K11-Off K3-Off K12-On K4-Off Closed Closed Closed Default 2A-Off/2B-Off...

  • Page 65: Verifying Proper Fan Rotation

    Unit Start-Up (Continued) Verifying Proper Fan Rotation WARNING 1. Ensure that the "System" selection switch at the remote Hazardous Voltage! panel is in the "Off" position and the "Fan" selection switch for constant volume units is in the "Auto" position. Disconnect all electric power, including remote discon- (VAV units do not utilize a "Fan"...
  • Page 66 Figure 4-1 Condenser Fan Location with Human Interface Designator 5. Use Table 4-1 to program the Supply Fan for operation 7. Press the TEST START key to start the test. Remember by scrolling through the displays. that the delay designated in step 6 must elapse before the fans will begin to operate.

  • Page 67: Variable Air Volume Systems

    Unit Start-Up (Continued) lay before the test is to start. This service test will begin Use this data to assist in calculating a new fan drive if the after the TEST START key is pressed and the delay CFM is not at design specifications. designated in this step has elapsed.

  • Page 68: Exhaust Airflow Measurement

    Unit Start-Up (Continued) Exhaust Airflow Measurement 7. With the exhaust dampers open and the exhaust fan op- erating at full airflow capability, measure the amperage at (Optional with all Units) the exhaust fan contactor 1K17. If the amperage ex- ceeds the motor nameplate value, the static pressure is 1.
  • Page 69 Figure 4-2 20 & 25 Ton Supply Fan Performance without Inlet Guide Vanes S_HFC20 & 25 Ton 1700 RPM Dual 15 X 15 Fans Entrance Losses - without Inlet Guide Vanes 1600 RPM - without Evap Coil 20 HP - without Filters - without Return Air Dampers 1500 RPM - without Exhaust Fan...
  • Page 70 Figure 4-2 (Continued) 40, 50 & 55 Ton Supply Fan Performance without Inlet Guide Vanes S_HFC40, C50, C55 Dual 20 X 20 Fans Entrance Losses 1200 RPM - without Inlet Guide Vanes - without Evap Coil - without Filters 40 HP - without Return Air Dampers 1100 RPM - without Exhaust...
  • Page 71 Figure 4-2 (Continued) 90, 105, 115, & 130 Ton Supply Fan Performance without Inlet Guide Vanes 10000 20000 30000 40000 50000 60000...
  • Page 72 Figure 4-3 Wet Airside Pressure Drop at 0.075 lb/cu.ft. 20 through 60 Ton Standard Evaporator Coil Wet Airside Pressure Drop at 0.075 lb/cu.ft. 20-60 Ton Standard Evaporator Coil 0.09 0.08 0.07 0.06 0.05 4000 5000 6000 7000 8000 9000 10000 10000 20000 30000...
  • Page 73 Figure 4-3 (Continued) Wet Airside Pressure Drop at 0.075 lb/cu.ft. 70 through 130 Ton Standard Evaporator Coil Wet Airside Pressure Drop at 0.075 lb/cu.ft. 70-130 Ton Ton Standard Evaporator Coil 20000 30000 40000 50000 60000 Unit Airflow, CFM Dry Airside Pressure Drop at 0.075 lb/cu.ft. 70 through 130 Ton Standard Evaporator Coil Dry Airside Pressure Drop at 0.075 lb/cu.ft.
  • Page 74 Figure 4-3 (Continued) Wet Airside Pressure Drop at 0.075 lb/cu.ft. 20 through 105 Ton Hi-Cap Evaporator Coil (Hi-Cap Not Available on 115 & 130 Ton Units) Wet Airside Pressure Drop at 0.075 lb/cu.ft. 20-105 Ton Hi-Cap Evaporator Coil (Hi-Cap Not Available on 115 & 130 Ton Units) 4000 6000 8000...
  • Page 75 Figure 4-4 20 & 25 Ton Supply Fan Performance with Inlet Guide Vanes 1700 R P M S_HFC20 & 25 Ton Entrance Losses - with Inlet Guide Vanes - without Evap Coil 1600 R P M - without Filterts - without Return Air dampers 20 HP - without Exhaust Fan 1500 R P M...
  • Page 76 Figure 4-4 (Continued) 40, 50 & 55 Ton Supply Fan Performance with Inlet Guide Vanes S_HFC40, C50, C55 Dual 20 X 20 Fans Entrance Losses - with Inlet Guide Vanes 1200 RPM - without Evap Coil - without Filters 40 HP - without Return Air Dampers 30 HP - without Exhaust...
  • Page 77 Figure 4-4 (Continued) 90, 105, 115, & 130 Ton Supply Fan Performance with Inlet Guide Vanes 10000 20000 30000 40000 50000 60000...
  • Page 78 Table 4-2 20 through 75 Ton Component Static Pressure Drops (Inches W.C.) Evaporator Coil Heating System Filters Econ. High Throwaway Perm Cartridge Std With Or Std. Capacity SFHF/G SEHF/G SLHF/G SSHF/G Std. High Wire Roof Without Tons Wet Dry Wet Dry Low High All KW's Low High Low High Fiber Effic. Mesh Prefilter Prefilter Curb Exh. Fan 4,000 .07 .05 .14 .10 .02 N/A...
  • Page 79 Table 4-2 (Continued) 90 through 130 Ton Component Static Pressure Drops (Inches W.C.) Evaporator Coil Heating System Filters Econ. High Throwaway Perm Cartridge Std With Or Std. Capacity SFHF/G SEHF/G SLHF/G SSHF/G Std. High Wire Roof Without Tons Wet Dry Wet Dry Low High All KW's Low High Low High Fiber Effic. Mesh Prefilter Prefilter Curb Exh. Fan 27,000 .40 .31 .67 .51 N/A .25...
  • Page 80 Table 4-3 (Continued) 20 through 75 Ton 100% Modulating Exhaust Fan Performance Negative Static Pressure 0.25" W.G. 0.50" W.G. 0.75" W.G. 1.00" W.G. 1.25" W.G. 1.50" W.G. 1.75" W.G. 2.00" W.G. Std. RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP S*HF-C20 4,000 0.38...
  • Page 81 Table 4-4 20 through 75 Ton 50% Modulating Exhaust Fan Performance Negative Static Pressure 0.20" W.G. 0.40" W.G. 0.60" W.G. 0.80" W.G. 1.00" W.G. 1.20" W.G. 1.40" W.G. Std. S*HF-C20 2,000 0.17 0.30 0.45 0.58 0.73 0.90 1.08 S*HF-C25 3,000 0.36 0.51 0.67...

  • Page 82: Economizer Damper Adjustment

    Unit Start-Up (Continued) Economizer Damper Adjustment 2. Close the disconnect switch or circuit protector switch that provides the supply power to the unit's terminal block 1TB1 or the unit mounted disconnect switch 1S14. Exhaust Air Dampers Verify that the exhaust dampers (if equipped) close tightly 3.
  • Page 83 Unit Start-Up (Continued) To relocate the fresh air/return air connecting rod to balance 15. Reattach the drive rod and swivel to the appropriate the fresh air damper pressure drop against the return static hole(s). The length of the drive rod may need to be pressure, use the following steps.

  • Page 84: Compressor Start-Up

    Unit Start-Up (Continued) Figure 4-5 4. Turn the 115 volt control circuit switch 1S1 and the 24 Fresh Air & Return Air Linkage Adjustment volt control circuit switch 1S70 to the "On" position. 5. Open the Human Interface access door, located in the Top View unit control panel, and press the SERVICE MODE key to display the first service screen.

  • Page 85: Compressor Operational Sounds

    All Compressors for each circuit (On) Condenser Fans for each circuit (On) The scroll compressor uses Trane OIL-42 without substi- tution. The appropriate oil charge for a 9 and 10 Ton 4. Once the configuration for the components is complete, scroll compressor is 8.5 pints.
  • Page 86 Figure 4-6 Compressor Locations...
  • Page 87 Table 4-6 20 Ton Operating Pressure Curve (All Compressors and Condenser Fans "On") COOLING CYCLE PRESSURE CURVE (Based on Indoor Airflow of 400 CFM / Ton) FULL LOAD 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient SUCTION PRESSURE, PSIG...
  • Page 88 Table 4-6 (Continued) 30 Ton Operating Pressure Curve (All Compressors and Condenser Fans "On") COOLING CYCLE PRESSURE CURVE (Based on Indoor Airflow of 400 CFM / Ton) FULL LOAD 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient SUCTION PRESSURE, PSIG...
  • Page 89 Table 4-6 (Continued) 50 Ton Operating Pressure Curve (All Compressors and Condenser Fans, per ckt; "On") COOLING CYCLE PRESSURE CURVE (Based on Indoor Airflow of 400 CFM / Ton) FULL LOAD 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient SUCTION PRESSURE, PSIG...
  • Page 90 Table 4-6 (Continued) 55 Ton Hi Operating Pressure Curve (All Compressors and Condenser Fans, per ckt, "On") 55 Ton Hi Operating Pressure Curve (All Compressors and Condenser Fans, per ckt, "On") Cooling Cycle Pressure Curve (Based on Indoor Airfow of 400 CFM / Ton) Full Load 105 F OD Ambient 95 F OD Ambient...
  • Page 91 Table 4-6 (Continued) 60 Ton Hi Operating Pressure Curve (All Compressors and Condenser Fans, per ckt; "On") 60 Ton Hi Operating Pressure Curve (All Compressors and Condenser Fans, per ckt, "On") Cooling Cycle Pressure Curve (Based on Indoor Airfow of 400 CFM / Ton) Full Load 105 F OD Ambient 95 F OD Ambient...
  • Page 92 Table 4-6 (Continued) 75 Ton Standard Operating Pressure Curve (All Compressors and Condenser Fans, per ckt, "On") 75 Ton Std Operating Pressure Curve (All Compressors and Condenser Fans, per ckt, "On") Cooling Cycle Pressure Curve (Based on Indoor Airfow of 400 CFM / Ton) Full Load 105 F OD Ambient 95 F OD Ambient...
  • Page 93 Table 4-6 (Continued) 90 Ton Operating Pressure Curve (All Compressors and Condenser Fans, per ckt; "On") COOLING CYCLE PRESSURE CURVE (Based on Indoor Airflow of 400 CFM / Ton) FULL LOAD 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient SUCTION PRESSURE, PSIG...
  • Page 94 Table 4-6 (Continued) 115 Ton Operating Pressure Curve (All Compressors and Condenser Fans, per ckt; "On") COOLING CYCLE PRESSURE CURVE (Based on Indoor Airflow of 400 CFM / Ton) FULL LOAD 105 F OD Ambient 95 F OD Ambient 85 F OD Ambient 75 F OD Ambient 65 F OD Ambient SUCTION PRESSURE, PSIG...

  • Page 95: Thermostatic Expansion Valves

    Unit Start-Up (Continued) Thermostatic Expansion Valves With the unit operating at "Full Circuit Capacity", acceptable subcooling ranges between 14 F to 22 F. The reliability and performance of the refrigeration system Measuring Subcooling is heavily dependent upon proper expansion valve adjust- ment.

  • Page 96: Electric, Steam And Hot Water Start-Up

    Unit Start-Up (Continued) Damper Installation 5. Use Table 4-1 to program the following system compo- When a unit is ordered with the low ambient option (i.e., nents for operation by scrolling through the Human Inter- Digit 19 is a “1” in the model number), a damper is factory face displays;...

  • Page 97: Two Stage Gas Furnace

    Unit Start-Up (Continued) The volume of air supplied by the combustion blower deter- the heat exchanger. In appearance, a normal flame has mines the amount of oxygen available for combustion, while a clearly defined shape, and is primarily (75%) blue in the manifold gas pressure establishes fuel input.
  • Page 98 Table 4-7 Figure 4-7 Recommended Manifold Pressures and CO Levels Flue Gas Carbon Dioxide & Oxygen Measurements during Furnace Operation (See Notes) Furnace Firing Manifold Stage Rate %CO2 Pressure High-Fire 100% 8.5-9.5 3.0-3.5 Low-Fire 6.0-7.0 High-Fire 100% 8.5-9.5 3.0-3.5 Low-Fire 6.0-7.0 High-Fire 100%...

  • Page 99: Full Modulating Gas Furnace

    Unit Start-Up (Continued) Full Modulating Gas Furnace WARNING Full Modulating gas heaters are available for the 500, 850 Rotating Components! and 1000 MBH heater sizes. These heaters are available in the same cabinet sizes as the current heaters. During installation, testing, servicing and troubleshoot- ing of this product it may be necessary to measure the The firing rate of the unit can vary from the pilot rate of 125 speed of rotating components.

  • Page 100: Limited Modulating Gas Furnace

    Unit Start-Up (Continued) 2. Follow the checkout procedures discussed in the previ- 10. If the measured carbon dioxide level is below the rec- ous steps. ommended values for low heat, return the burner to 90% fire rate and repeat steps 6 and 7, to achieve optimum combustion.

  • Page 101: Final Unit Checkout

    Unit Start-Up (Continued) Figure 4-10 Final Unit Checkout Typical Gas Furnace 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: [ ] Close the disconnect switch or circuit protector switch...

  • Page 102: Service & Maintenance

    Service & Maintenance Table 5-1 Control Settings and Time Delays Control Description Elec. Designation Contacts Open Contacts Closed Compressor Circuit Breakers S*HF 20 - 60 1CB8 thru 1CB11 See Table 5-2 See Table 5-2 S*HG 90 - 130 1CB14 thru 1CB17 See Table 5-2 See Table 5-2 Combustion Airflow Switch...
  • Page 103 Service & Maintenance (Continued) Table 5-3 Unit Internal Fuse Replacement Data & VFD Factory Settings...
  • Page 104 Service & Maintenance (Continued) Table 5-4 Filter Data Panel-Type Filters Bag-Type Filters Cartridge Filters Panel-Type Prefilters Unit Model (Note 1) (Note 2) (box-type) (Note 2) (Note 3) Size of each Qty. Size of each Qty. Size of each Qty. Size of each S_HF-C20 &...
  • Page 105 Service & Maintenance (Continued) Table 5-6 Grease Recommendations Recommended Recommended Grease Operating Range Exxon Unirex #2 Mobil 532 -20 F to 250 F Mobil SHC #220 Texaco Premium RB Table 5-7 Refrigerant Coil Fin Data Coil Fins Coil Face Coil Tube Coil Area...

  • Page 106: Fan Belt Adjustment

    Service & Maintenance (Continued) Fan Belt Adjustment WARNING The supply fan belts and optional exhaust fan belts must be Hazardous Voltage! inspected periodically to assure proper unit operation. Disconnect all electric power, including remote discon- Replacement is necessary if the belts appear frayed or nects before servicing.

  • Page 107: Scroll Compressor Replacement

    The compressor manifold system was purposely designed The scroll compressor uses Trane OIL-42 without substitu- to provide proper oil return to each compressors. The refrig- tion. The appropriate oil charge for a 9 and 10 Ton scroll erant manifold system must not be modified in any way.

  • Page 108: Vfd Programming Parameters

    Press the Change Data button. Should replacing the a VFD become necessary, the re- (k) Press the Up Arrow button to scroll to the Factory placement is not configured with all of Trane's operating Default setting. parameters. The VFD must be programmed before at- Press the OK button.

  • Page 109: Monthly Maintenance

    (q) Press the Up Arrow button to scroll to the Active Service & Maintenance (Continued) Setup menu. (r) Press the Change Data button. Monthly Maintenance (s) Press the Up Arrow button to scroll to the Setup 1 setting. Before completing the following checks, turn the unit OFF and lock the main power disconnect switch open.

  • Page 110: Heating Season

    Service & Maintenance (Continued) After greasing the bearings, check the setscrews to ensure [ ] Check the condition of the gasket around the control that the shaft is held securely. Make sure that all bearing panel doors. These gaskets must fit correctly and be in braces are tight.
  • Page 111 Service & Maintenance (Continued) Note: Refrigerant oil is detrimental to some roofing CAUTION materials. Care must be taken to protect the roof from oil leaks or spills. Coil Cleaners! Coil cleaners can damage roofs, surrounding buildings, 4. Pour the cleaning solution into the sprayer. If a high- vehicles, etc.

  • Page 112: Final Process

    Service & Maintenance (Continued) Final Process Complete Unit Model Number: For future reference, you may find it helpful to record the Unit Serial Number: unit data in the blanks provided. Unit "DL" Number ("Design special" units only): Wiring Diagram Numbers (from unit control panel): —schematic(s) —connections Unit Address (TCI)

  • Page 113: Index

    Index AC Conductors ..............45 Damper Adjustment ............93 See Table 3-8 See Low Ambient Dampers Adjusting the Fresh Air Damper ........80 Damper Installation ............94 Airflow Measurements ............. 63 See Low Ambient Dampers Daytime Warm-up .............. 11 DC Conductors ..............45 See Table 3-9 Dimensional data ............
  • Page 114 See Figure 3-11 Measuring Subcooling ............. 93 See Charging by Subcooling Flue Gas Carbon Dioxide & Oxygen Measurements ..96 Measuring Superheat ............93 See Figure 4-7 Minimum Position Potentiometer ........47 Freeze Protection .............. 58 Model Number Description ..........4 - 5 Freezestat ................
  • Page 115 "temporary low limit suppression" setting ......9 Wet Airside Pressure Drop ......... 70-72 Thermostatic Expansion Valves ........83 See Figure 4-3 Trane Communications Interface Module ......7 Wet Heat ................58 Trane OIL-42 ..............83 “Wet” heat actuator ............58 Transducer Voltage Output vs Pressure Input ....

  • Page 116: Warranty

    Degradation of these materials can result in serious damage to the equipment. Trane accepts no responsibility for the performance or operation of our equipment in which ultraviolet devices were installed outside of the Trane factory or its approved suppliers.

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