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Trane PKGP-PRC003-EN manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    P ac k ag ed Heat Pumps Pr ecedent™ 3-1 0 T ons - 60 Hz PKGP -PRC0 03-EN September 2004[...]

  • Page 2

    © 2004 American Standard Inc. All Rights Reserved PKGP -PRC0 03-EN Intr oduction P ac k ag ed Roof t o p Air Conditioners Through the year s, T rane has designed and developed the most complete line of Pa ckaged Roof top products available in the mark et today . T rane was the fir st to introduce the Micro—microelectronic unit controls—and has[...]

  • Page 3

    PKGP -PRC0 03-EN 3 Contents Intr oduction F eatur es and Benefits Application Considerations Selection Pr ocedure Model Number Description General D ata P erf or mance Data Cooling Performance Fan Performance Heat Performance Contr ols Electr ic P o w er Dimension and W eights Mechanical Specifications 2 4 11 12 13 14 17 17 20 29 37 38 45 53[...]

  • Page 4

    4 PKGP -PRC0 03-EN Factory Installed Options • Blac k Epoxy Pre-Coated Coils • High Pressure Cutout • Hinged Access Door s • Phase Monitor • Powered or Unpowered Convenience Outlet • Supply and/or Return Air Smok e Detector • Through the Base Electrical Access • Through the Base Electrical With Circuit Breaker • Through the Base E[...]

  • Page 5

    PKGP -PRC0 03-EN 5 Easy to Install, Service and Maintain Because today’ s owner s are very cost- conscious when it comes to service and maintenance, the T rane Precedent was designed with direct input from service contractor s. This valuable information helped to design a product that would get the serviceman off the job quic ker and save the own[...]

  • Page 6

    6 PKGP -PRC0 03-EN F eatures and Benef its Black Epoxy Pre-Coated Coils The pre-coated coils are an economical option for protection in mildly corrosive environments. Cabinet Integrity For added w ater integrity , Precedent has a raised 1 1 / 8 " lip around the supply and return of the downflow units to prevent water from blowing into the duct[...]

  • Page 7

    PKGP -PRC0 03-EN 7 High Pressure Cutout This factory-installed option is offered for units that do not have High Pressure Cutout as standard. All 3-phase units with scroll compressors include High Pressure cutout as standard. High Static Dr ive Accessory Available on many models, this high static drive accessory extends the capability of the standa[...]

  • Page 8

    8 PKGP -PRC0 03-EN Unit Cabinet The compact cabinet with rounded corners takes up less room and is less costly to ship. The beveled and ribbed top is not only aesthetically pleasing, it is designed to prevent water from pooling. Va r i T r a c When T rane’ s changeo ver V A V System for light commercial applications is coupled with Precedent, it [...]

  • Page 9

    PKGP -PRC0 03-EN 9 Easy to Install Convertible Units – The units ship in a downflow configuration. They can be easily converted to horizontal by simply moving two panels. – Units come complete with horizontal duct flanges so the contractor doesn’t have to field fabricate them. These duct flanges are a time and cost saver . Easy Access Low V o[...]

  • Page 10

    10 PKGP -PRC0 03-EN Through the Base Electrical with Disconnect Switch Factory installed 3-pole, molded case, disconnect switc h with provisions for through the base electrical connections are available. Through the Base Utilities Access An electrical service entrance shall be provided allowing electrical access for both control and main power conn[...]

  • Page 11

    PKGP -PRC0 03-EN 11 Application of this product should be within the cataloged airflow and cooling considerations. Low Ambient Cooling The Precedent™ line features, with ReliaT el™ microprocessor controls, low ambient cooling down to 0°F . Barometric Relief This product line offers an optional barometric relief damper . for use in conjunction [...]

  • Page 12

    12 PKGP -PRC0 03-EN Cooling Capacity Step 1 Calculate the building’ s total and sensible cooling loads at design conditions. Use the T rane calculation methods or any other standard accepted method. Factors used in unit selection: A T otal Cooling Load: 59 MBh B Sensible Cooling Load: 40 MBh C Airflow: 2000 cfm D Electrical Characteristics: 460/6[...]

  • Page 13

    PKGP -PRC0 03-EN 13 Model Number Description DIGIT 1 - Unit Function W = P ackaged Heat Pump DIGIT 2 - Efficiency S = Standard Efficiency DIGIT 3 - Airflo w C = Convertible DIGITS 4,5,6 - Nominal Gross Cooling Capacity (MBh) 036 = 3 T on 048 = 4 T on 060 = 5 T on 072 = 6 T on 090 = 7½ T on 120 = 1 0 T on DIGIT 7 - Major Design Sequence A = First D[...]

  • Page 14

    14 PKGP -PRC0 03-EN General Data (3, 4 T on) T able GD-1 — General D ata 3 T on Convertible Units 4 T on Convertible Units WSC036A1 WSC036A3,A4,AW WSC048A1 WSC048A3,A4,AW Cooling Performance 1 Gross Cooling Capacity 38,100 38,100 50,800 50,800 SEER 2 9.80 10.20 10.50 10.70 Nominal CFM / ARI Rated CFM 1,200 / 1,200 1,200 / 1,200 1,600 / 1,600 1,60[...]

  • Page 15

    PKGP -PRC0 03-EN 15 General Data (5, 6 T on) T able GD-2 — General D ata 5 T on Convertible Units 6 T on Convertible Units WSC060A1 WSC060A3,A4,AW WSC072A3,A4,AW Cooling Performance 1 Gross Cooling Capacity 63,100 63,100 74,000 EER/SEER 2 — /9.70 — /10.10 10.6/ — Nominal CFM / ARI Rated CFM 2,000/2,000 2,000/2,0000 2,400/2,100 ARI Net Cooli[...]

  • Page 16

    16 PKGP -PRC0 03-EN General Data (7½, 1 0 T on) T able GD-3 — General D ata 7½ Ton Convertible Units 10 Ton Convertible Units WSC090A3, A4, AW WSC120A3, A4, AW Cooling Performance 1 Gross Cooling Capacity 93,000 121,000 EER 2 10.1 10.1 Nominal CFM / ARI Rated CFM 3,000/2,625 4,000/3,200 ARI Net Cooling Capacity 88,000 113,000 Integrated Part Lo[...]

  • Page 17

    PKGP -PRC0 03-EN 17 P erformance Data (3, 4 T on) T able PD-1 — Gross Cooling Capacities (MBH) 3 T on Single/Three Phase WSC036A1, A3, A4, A W Ambient T emperature (F) 85 95 10 5 1 15 Enter. D ry Entering W et Bulb (F) C FM Bulb 6 1 6 7 7 3 6 1 6 7 7 3 6 1 6 7 7 3 6 1 6 7 7 3 Airflow (F ) M B H S H C M B H S H C M B H S H C M B H S H C M B H S H [...]

  • Page 18

    18 PKGP -PRC0 03-EN (5, 6 T on) P erformance Data T able PD-3 — Gross Cooling Capacities (MBh) 5 T on Three Phase WSC060A1,A3, A4, A W Ambient T emperature (F) 85 95 10 5 1 15 Enter. D ry Entering W et Bulb (F) C FM Bulb 6 1 6 7 7 3 6 1 6 7 7 3 6 1 6 7 7 3 6 1 6 7 7 3 Airflow (F ) M B H S H C M B H SH C M B H S H C M B H SH C M B H S H C M B H SH[...]

  • Page 19

    PKGP -PRC0 03-EN 19 T able PD-6 — Gross Cooling Capacities (MBh) 1 0 T on Three Phase WSC120A3, A4, A W Ambient T emperature (F) 85 95 10 5 1 15 Enter. D ry Entering W et Bulb (F) C FM Bulb 6 1 6 7 7 3 6 1 6 7 7 3 6 1 6 7 7 3 6 1 6 7 7 3 Airflow (F ) M B H S H C M B H S H C M B H S H C M B H S H C M B H S H C M B H S H C M B H S H C M B H S H C M[...]

  • Page 20

    20 PKGP -PRC0 03-EN P erformance Data (3, 4, 5 T on) T able PD-7 — Dir ect Drive Ev aporat or Fan P erformance — 3, 4 And 5 T on WSC036A, WSC048A, WSC060A External Static Pressure (Inches of Water) & Motor Power (Bhp) 1 Standard Motor Oversized Motor 2 Unit High Speed Low Speed High Speed Low Speed Tons Model No. C F M E S P B H P E S P B H[...]

  • Page 21

    PKGP -PRC0 03-EN 21 P erformance Data (3 T on) T able PD-8 — Belt Dr ive Evapor ator F an Perfor mance — 3 T on — WSC036A3,A4,A W — Downflow Airflow External Static Pressure (Inc hes of W ater) .10 .20 .30 .40 .50 .60 .70 .80 .90 1 . 0 0 CF M RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 -HP Standard Moto[...]

  • Page 22

    22 PKGP -PRC0 03-EN P erformance Data (4 T on) T able PD-1 0— Belt Driv e Evaporat or Fan P erfor mance — 4 T on — WSC048A3,A4,A W — Downflo w Airflow External Static Pressure (Inc hes of W ater) .10 .20 .30 .40 .50 .60 .70 .80 .90 1 . 0 0 CF M RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 -HP Standard Mo[...]

  • Page 23

    PKGP -PRC0 03-EN 23 P erformance Data (5 T on) T able PD-12 — Belt Driv e Evaporat or Fan P erformance — 5 T on — WSC060A3,A4,A W — Downflow Airflo w External Static Pressure (Inc hes of W ater) .10 .20 .30 .40 .50 .60 .70 .80 .90 1 . 0 0 CF M RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 -HP Standard Mot[...]

  • Page 24

    24 PKGP -PRC0 03-EN P erformance Data (6 T on) T able PD-15 — Belt Driv e Evaporat or Fan P erformance — 6 T on — WSC072A3,A4,A W — Horizontal Airflow External Static Pressure (Inc hes of W ater) .10 .20 .30 .40 .50 .60 .70 .80 .90 1 . 0 0 CF M RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 -HP Standard Mo[...]

  • Page 25

    PKGP -PRC0 03-EN 25 T able PD-16— Belt Dr ive Evapor ator Fan P erfor mance — 7½-T on — WSC090,092A3,A4,A W — Downflo w Airflow External Static Pressure (Inc hes of W ater) .10 .20 .30 .40 .50 .60 .70 .80 .90 1 . 0 0 CF M RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1 -HP Standard Motor & Field Suppli[...]

  • Page 26

    26 PKGP -PRC0 03-EN P erformance Data (1 0 T on) T able PD-18 — Belt Dr ive Evapora tor Fan P erformance — 1 0-T on — WSC120A3,A4,A W — Downflow Airflow External Static Pressure (Inc hes of W ater) .10 .20 .30 .40 .50 .60 .70 .80 .90 1 . 0 0 CF M RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 2-HP Standard M[...]

  • Page 27

    PKGP -PRC0 03-EN 27 P erformance Data T able PD-20— Standard Motor & Shea ve/Fan Speed (Rpm) Unit 6 T urns 5 T urns 4 T urns 3 T urns 2 T urns 1 T urn T on s Model No. Open Open Open Open Open Open Closed 3 WSC036A N/A 74 5 8 1 9 894 96 8 1043 1 1 1 7 4 WSC048A N/A 8 33 91 6 1000 1083 1 16 7 1250 5 WSC060A N/A 89 7 987 1077 1 16 6 1256 1346 6[...]

  • Page 28

    28 PKGP -PRC0 03-EN P erformance Data T able PD-24— Electric Heat er V oltage Correction Factors (Applicable to A uxiliary Heat Capacity) Nominal Distribution Capacity Voltage Voltage Multiplier 2 08 0.751 2 40 23 0 0.918 240 1 .0 0 0 4 40 0.840 4 80 46 0 0.918 480 1 .0 0 0 5 40 0.810 6 00 57 5 0.918 600 1 .0 0 0 T able PD-25 — Outdoor Sound P [...]

  • Page 29

    PKGP -PRC0 03-EN 29 T able PD-26 — 3 T on Single Phase Heating Capacities (Net) WSC036A1 At 120 0 CFM Outdoor Instantaneous Heating Capacity (Btuh/1000) Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp a t Indicated Indoor Dry Bulb Temp. at Indicated Indoor Dry Bulb Temp. 1 Indicated Indoor Dry Bulb Temp. F . 60 70 75 80 6[...]

  • Page 30

    30 PKGP -PRC0 03-EN T able PD-29 — 4 T on Single Phase Heating Capacities (Net) WSC048A3,A4,A W At 160 0 CFM Outdoor Instantaneous Heating Capacity (Btuh/1000) Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. at Indicated Indoor Dry Bulb Temp. at Indicated Indoor Dry Bulb Temp. 1 Indicated Indoor Dry Bulb Temp. F 6 0 7 07[...]

  • Page 31

    PKGP -PRC0 03-EN 31 T able PD-31 — 5 T on Three Phase Heating Capacities (Net) WSC060A3, A4, A W At 200 0 CFM Outdoor Instantaneous Heating Capacity (Btuh/1000) Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. a t Indicated Indoor Dry Bulb Temp. at Indicated Indoor Dry Bulb Temp. 1 Indicated Indoor Dry Bulb Temp. F . 60 7[...]

  • Page 32

    32 PKGP -PRC0 03-EN (6 T on) P erformance Data T able PD-32 — 6 T on Heating Capacities (Net) WSC72A At 240 0 CFM Downflo w Configuration Outdoor Integrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. a t Indicated Indoor Dry Bulb Temp. 1 Indicated Indoor Dry Bulb Temp. F . 60 70 75 80 60 70 75 80 -- 8 23.9 23.4 23.2 23.0 4.40 [...]

  • Page 33

    PKGP -PRC0 03-EN 33 (7½ T on) P erformance Data T able PD-35— 7½ T on Heating Capacities (Net) WSC090A At 300 0 CFM Horizontal Configur ation Outdoor I n t e g r a t e d H eating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. a t Indicated Indoor Dry Bulb Temp. 1 Indicated Indoor Dry Bulb Temp. F . 60 70 75 80 60 70 75 80 -8 33.7 32.2 3[...]

  • Page 34

    34 PKGP -PRC0 03-EN P erformance Data (1 0 T on) T able PD-36— 1 0 T on Heating Capacities ( Net) WSC120A At 40 0 0 CFM Downflow Configur ation Outdoor Inagrated Heating Capacity (Btuh/1000) Total Power in Kilowatts at Temp. a t Indicated Indoor Dry Bulb Temp. 1 Indicated Indoor Dry Bulb Temp. F . 60 70 75 80 60 70 75 80 8 39.6 39.4 39.4 39.5 7 .[...]

  • Page 35

    PKGP -PRC0 03-EN 35 T able PD-39 —Electric Heat er V oltage Cor rection F actors (Applicable to A uxiliary Heat Capacity) Nominal Distribution Capacity Voltage Voltage Multiplier 20 8 0.751 24 0 23 0 0.918 24 0 1.000 44 0 0.840 48 0 46 0 0.918 48 0 1.000 54 0 0.810 60 0 57 5 0.918 60 0 1.000 P erformance Data T able PD-38 — A uxiliary Electr ic[...]

  • Page 36

    36 PKGP -PRC0 03-EN T able PD-42 — Electr ic Heater T emperatu re Rise Corr ection Fact ors % Variation From Nominal CFM - 20 - 15 - 10 - 5 0 +5 +1 0 + 15 +2 0 Temperature Rise Multiplier 1.25 1.17 1.11 1.05 1.00 0.95 0.91 0.87 0.83 P erformance Data T able PD-41 — 6-1 0 T ons Air T emperatur e Rise Acr oss Electric Heat ers (Degrees F) 6 Ton 7[...]

  • Page 37

    PKGP -PRC0 03-EN 37 Contr ols ReliaT el™ Controlled Units Zone Sensors are the building occupant’ s comfort control devices for Precedent™ units with the Micro control: Manual Changeover Heat, Cool or Off S ystem Switch. F an Auto or Off Switc h. One temperature setpoint lever . Manual/A utomatic Chang eover Auto, Heat, Cool or Off S ystem Sw[...]

  • Page 38

    38 PKGP -PRC0 03-EN Electrical Data T able ED-1 — Unit Wiring Standard Indoor Fan Motor Oversize Indoor Fan Motor Optional Belt Drive Indoor Fan Motor 3 Unit Minimum Maximum Fuse Minimum Maximum Fuse Minimum Maximum Fuse Unit Operating Circuit Size or Maximum Circuit Size or Maximum Circuit Size or Maximum T on s Model No. V oltage R ange 2 Ampac[...]

  • Page 39

    PKGP -PRC0 03-EN 39 Electrical Data T able ED-2 — Unit Wir ing With Electric Heat (Single P oint Connection) — 208/230 V olts Single and Three Phase Standard Indoor Motor Oversize Indoor Motor To Us e Heater Heater Control Max F us e S ize or Max Fuse Size or Tons With Model No. KW Rating 1 Stages M C A Max Circuit Breaker 2 M C A Max Circuit B[...]

  • Page 40

    40 PKGP -PRC0 03-EN Electrical Data T able ED-3 — Unit Wiring With Electric Heat (Single P oint Connection) — 460 V olts Three Phase Standard Indoor Motor Oversize Indoor Motor To Us e Heater Heater Control Max F use Size or Max Fuse Size or Tons With Model No. KW Rating 1 Stages M C A Max Circuit Breaker 2 M C A Max Circuit Breaker 2 460 Volts[...]

  • Page 41

    PKGP -PRC0 03-EN 41 Electrical Data T able ED-4— Unit Wir ing With Electric Heat (Single P oint Connection) — Optional Belt Dri ve Indoor Motor Optional Belt Drive Indoor Motor To Us e Heater Heater Control Max F us e Size or Tons With Model No. KW Rating 1 Stages M C A Max Circuit Breaker 2 208/230 Volts Three Phase BAYHTRR306A 4.5/6.0 1 37.4/[...]

  • Page 42

    42 PKGP -PRC0 03-EN Electrical Data T able ED-5 — Electr ical Character istics — Evapora tor Fan Motors — 60 Cy cle — Standard and Oversized Ev aporator Fan Mot or Standard Evaporator Fan Motor Oversized Evaporator Fan Motor Unit Amps Amps Tons Model No. No. Volts Phase H P FLA LR A No . Volts Phase H P FLA LR A WSC036A1 1 208-230 1 .33 2 .[...]

  • Page 43

    PKGP -PRC0 03-EN 43 T able ED-7 — Electr ical Charact er istics — Compressor Motor And Condenser Motor — 60 Cycle Compressor Motor Condenser Fan Motor Unit AMPS 1 AMPS Tons Model No. No. Volts Phase H P 2 R P M R LA LRA No. Phase H P FLA LRA WSC036A1 1 208-230 1 3.1 3450 17.5 104.0 1 1 .20 1 .5 2.5 3 WSC036A3 1 208-230 3 3 . 1 3450 11.8 74.0 [...]

  • Page 44

    44 PKGP -PRC0 03-EN Jobsite Connections For specific wiring information, see the installation instructions. All wiring except power wires is low voltage. All customer supplied wiring to be copper and must conform to NEC or CEC and local electrical codes. Wiring shown dotted is to be furnished and installed by the customer. Zone Sensors —T ypical [...]

  • Page 45

    PKGP -PRC0 03-EN 45 Dimensional Data All dimensions are in inc hes/millimeter s. 4 1/4" 108 MM 23 9/16" 598 MM 69 7/8" 1775 MM 42 1/4" 1073 MM 9 5/8" 244 MM 5 5/8" 143 MM 5 9/16" 141 MM 7 5/8" 194 MM 44 1/4" 1124 MM 32 1/4" 819 MM 3-5 T ons Unit Clearance and Roof Opening (3-5 T ons) 3-5 T ons — W[...]

  • Page 46

    46 PKGP -PRC0 03-EN Dimensional Data All dimensions are in inc hes/millimeter s. 3-5 T onsDownflow Duct Connections — Field F abricat ed 3-5 T ons Hor izontal Airflow Supply/Retur n 3-5 T ons Do wnflow Airflow Supply/Retu rn; Through the Base Utilities (3-5 T ons)[...]

  • Page 47

    PKGP -PRC0 03-EN 47 Dimensional Data (6-1 0 T ons) All dimensions are in inc hes. 6 and 7½ T ons — WSC072A and WSC090A 1 0 T ons —WSC120A[...]

  • Page 48

    48 PKGP -PRC0 03-EN Dimensional Data (6-1 0 T ons) All dimensions are in inc hes. 6-1 0 T ons — Downflow Airflow Supply and Return; Through the Base Utilities 6-1 0 T ons — Horizontal Airflow Supply and Retur n 6-1 0 T ons — Unit Clearance and Roof Opening Supply Return[...]

  • Page 49

    PKGP -PRC0 03-EN 49 Dimensional Data (6-1 0 T ons) All dimensions are in inc hes. 6-1 0 T ons — Roof Curb 857 857 ALL FLANGES 1 1/4” (31 MM) 6-1 0 T ons — Downflow Duct Connections — Field Fabricated[...]

  • Page 50

    50 PKGP -PRC0 03-EN All dimensions are in inc hes. (3-5 T on) Options/ A ccessories Dimensional Data 3-5 T ons Economizer , Manual, or Motori zed Fr esh Air Damper See P age 46 for Through the Base Utilities Infor mation 3-5 T ons Barometr ic Relief Damper 3-5 T ons Swing Diameter f or Hinged Doors Option 17 7/8" (454 MM) 16" (406 MM) 22 [...]

  • Page 51

    PKGP -PRC0 03-EN 51 Dimensional Data (6-1 0 T ons Options/ A ccessories) All dimensions are in inc hes. 21 3/8" 543 MM 17" 432 MM 34 5/8" 879 MM 6-1 0 T ons — Economizer and Barometr ic Relief Damper Hoods 6-1 0 T ons — Pow er Exhaust 6-1 0 T ons — Swing Diameter f or Hinged Door(s) Option See P age 48 for Through the Base Util[...]

  • Page 52

    52 PKGP -PRC0 03-EN W eights T able W - 1 — Maximum Unit W eights, Corner W eights (Lbs) And Center Of Gra vity Dimensions (In.) Unit Maximum W eights (Lbs) Corner W eights (Lbs) 1 Center of Gravity (In.) Tons Model No. Shipping Net A B C D Length Width 3 WSC036A 534 442 13 8 110 88 105 3 1 1 9 4 WSC048A 566 474 15 1 114 95 114 3 1 1 9 5 WSC060A [...]

  • Page 53

    PKGP -PRC0 03-EN 53 Mec hanical Specif ications General The units shall be conver tible airflow. The operating range shall be between 1 15°F and 0°F in cooling as standard from the factory for units with microprocessor controls. Operating range for units with electromec hanical controls shall be between 1 15°F and 40°F . Cooling performance sha[...]

  • Page 54

    54 PKGP -PRC0 03-EN Mec hanical Specif ications F actory Installed Options Black Epoxy Pre-Coated Coils The blac k epoxy coils have a thermoset vinyl coating that is bonded to the aluminum fin stoc k prior to the fin- stamping process. The pre-coated coils are an economical option for protection in mildly corrosive environments. High Pressure Cutou[...]

  • Page 55

    PKGP -PRC0 03-EN 55 Mec hanical Specif ications Frostat This option is to be utilized as a safety device. The Frostat opens when temperatures on the evaporator coil fall below 1 0°F . The temperature will need to rise to 50°F before closing. This option should be utilized in low airflow or high outside air applications. LonT alk ® Communication [...]

  • Page 56

    Literature Order Number File Number Supersedes Stocking Location T rane A business of American Standard Companies www.trane.com For more information contact your local dealer (distributor), local district office, or e-mail us at comfort@trane.com T rane has a policy of continuous product and product data improvement and reserves the right to change[...]