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Trane RT-PRC007-EN manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    P ac k aged Roof t op Air Conditioners 27 ½ t o 50 T on - 60 Hz V o yag er™ Commercial R T -PRC007 -EN Oct ober 20 0 1[...]

  • Page 2

    ©American Standard Inc. 20 0 1 RT -PRC0 07 -EN Intr oduction P a c k ag ed Roof t op Air Conditioners Through the years, T rane has designed and developed the most complete line of Pa c kaged Rooftop products available in the market today. T rane was the fir st to introduce the Micro —microelectronic unit controls— and again moved ahead with t[...]

  • Page 3

    3 Contents R T -PRC0 07 -EN Intr oduction F eatur es and Benefits Application Consider ations Selection Pr ocedur e Model Number Description Gener al Data P erf or mance D ata P erformance Adjustment F actor s Contr ols Electr ic P o wer Dimension and W eights Mec hanical Specifications 2 4 10 12 14 15 19 18 28 32 34 41[...]

  • Page 4

    RT -PRC0 07 -EN 4 F eatures and Benef its Standard F eat ures • Factory installed and commissioned microelectronic controls • T rane 3-D™ S croll Compressors • Dedicated downflow or horiz ontal configuration • CV or V A V control • FROST A T™ coil frost protection on all units • Supply air overpressurization protection on V A V unit[...]

  • Page 5

    5 R T -PRC0 07 -EN T rane 3-D ® Scr oll Compressor Simple Design with 70% Few er P arts Fewer par ts than an equal capacity reciprocating compressor means significant reliability and ef ficiency benefits. The single orbiting scroll eliminates the need for pistons, connecting rods, wrist pins and valves. Fewer par ts lead to increased reliability .[...]

  • Page 6

    RT -PRC0 07 -EN 6 F eatures and Benef its Micr o Controls The Micro provides unit control for heating, cooling and ventilating utilizing input from sensors that measure outdoor and indoor temperature. Quality and Reliability are enhanced through the use of time-tested micro- processor controls and logic. The Micro: • prevents the unit from shor t[...]

  • Page 7

    7 R T -PRC0 07 -EN F eatures and Benef its Ex cellent P art-Load Ef ficiency The Scroll compressor’s unique design allows it to be applied in a passive parallel manifolded piping sc heme, something that a “recip” just doesn’t do very well. When the unit begins stage bac k at par t load it still has the full area and circuitry of its evapora[...]

  • Page 8

    RT -PRC0 07 -EN 8 F eatures and Benef its Easy to Service Because today’s owners are very cost- conscious when it comes to service and maintenance, the T rane V oyager w as designed with direct input from service contractors. This valuable information helped to design a product that would get the serviceman of f the job quic ker and save the owne[...]

  • Page 9

    9 R T -PRC0 07 -EN F eatures and Benef its Va r i T r a c T rane’s changeo ver V A V S ystem for light commercial applications is also available. Coupled with V oyager Commercial, it pro vides the latest in tec hnological advances for comfor t management systems and can allow thermostat control in every z one served by V ariT rac™. Va r i T r a[...]

  • Page 10

    RT -PRC0 07 -EN 10 Application Considerations Exhaust Air Options When is it necessary to provide building exhaust? Whenever an outdoor air economiz er is used, a building generally requires an exhaust system. The purpose of the exhaust system is to exhaust the proper amount of air to prevent over or under - pressurization of the building. A buildi[...]

  • Page 11

    11 RT -PRC0 07 -EN 4 If several units are to be placed on one span, they should be staggered to reduce deflection o ver that span. It is impossible to totally quantify the ef fect of building structure on sound transmission, since this depends on the response of the roof and building members to the sound and vibration of the unit components. Howeve[...]

  • Page 12

    RT -PRC0 07 -EN 12 S election P rocedure A psyc hrometric c har t can be used to more accurately determine the mixture temperature to the evaporator coil. Step 4 — Determine total required unit cooling capacity: Required capacity = total peak load + O .A. load + supply air fan motor heat. From Figure SP -1, the supply air fan motor heat for 7 .27[...]

  • Page 13

    13 RT -PRC0 07 -EN S election P rocedure The supply air fan motor selected in the previous cooling capacity determination example w as 7 .27 bhp with 652 rpm. Thus, the supply fan motor selected is 7 .5 hp. T o select the dri ve, enter T able PD-15 for a 30-ton unit. S elect the appropriate drive for the applicable rpm range. Dri ve selection let t[...]

  • Page 14

    RT -PRC0 07 -EN 14 Model Number Description Y C D 4 8 0 A 4 H A 1 A 4 F D 1 A 0000000 0 0 0 0 0 5 1 2 3 4 5 6 7 8 9 1 01 1 1 21 3 1 4 1 51 6 1 7 1 81 92 02 12 22 32 4 2 5 2 6 2 7 2 8 2 9 KW T ons V oltage 36 54 72 9 0 108 27½ to 35 240 x x 4 8 0 xxxx 600 x x x 40 and 50 240 x 480 x x x x 600 x x x x Digit 1, 2 — Unit Function TC = DX Cooling, No[...]

  • Page 15

    15 RT -PRC0 07 -EN General Data 27 1/2 T o n 30 T on Cooling P erformance 1 Nominal Gross Capacity 329,0 00 363,0 00 Natural Gas Heat 2 Low High Low High Heating Input (BTUH) 350,0 00 60 0,0 00 350,00 0 600,0 0 0 First Stage 250,0 00 425,0 0 0 250,00 0 425,0 00 Heating Output (BTUH) 283,500 486,0 00 283,50 0 486,0 00 First Stage 202,50 0 344,500 20[...]

  • Page 16

    RT -PRC0 07 -EN 16 T able GD-2 — General D ata — 35-40 T on 35 T on 40 T on Cooling P erformance 1 Nominal Gross Capacity 417 ,0 00 513,00 0 Natural Gas Heat 2 Low High Low High Heating Input (BTUH) 350,0 00 60 0,0 00 40 0,0 00 80 0,0 00 First Stage 250,0 00 425,0 0 0 30 0,0 00 60 0,0 00 Heating Output (BTUH) 283,500 486,0 00 324,0 0 0 648,0 0 [...]

  • Page 17

    17 RT -PRC0 07 -EN General Data 50 T on Cooling P erformance 1 Nominal Gross Capacity 616,0 00 Natural Gas Heat 2 Low High Heating Input (BTUH) 400,0 0 0 800,0 0 0 First Stage 300,0 0 0 60 0,00 0 Heating Output (BTUH) 324,0 00 648,0 00 First Stage 243,0 00 486,0 00 Steady State Ef ficiency (%) 3 81 .00 81 .0 0 No. Burners 1 2 No. Stages 2 2 Gas Con[...]

  • Page 18

    RT -PRC0 07 -EN 18 P erf ormance A djustment F actor s W et Bulb T emperature Btu P er Lb. 40 15.23 41 15.70 42 16.17 43 16.66 44 17 .15 45 17 .65 46 18.16 47 18.68 48 1 9.21 49 1 9.75 50 20.30 51 20.86 52 21 .44 53 22.02 54 22.62 55 23.22 56 23.84 57 24.48 58 25.12 59 25.78 60 26.46 61 27 .15 62 27 .85 63 28.57 64 29.31 65 30.06 66 30.83 67 31 .62[...]

  • Page 19

    19 RT -PRC0 07 -EN P erformance Data T able PD-4 — 27 1/2 T on Gross Cooling Capacities (MBh) T able PD-5 — 30 T on Gross Cooling Capacities (Mbh) Ambient T emperature — Deg F 85 95 1 05 1 15 Ent Entering Wet Bulb T emperature — Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC [...]

  • Page 20

    RT -PRC0 07 -EN 20 P erf ormance Data T able PD-6 — 35 T on Gross Cooling Capacities (Mbh) T able PD-7 — 40 T on Gross Cooling Capacities (Mbh) Ambient T emperature — Deg F 85 95 1 05 1 1 5 Ent Entering Wet Bulb T emperature — Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SH[...]

  • Page 21

    21 RT -PRC0 07 -EN P erformance Data T able PD-8 — 50 T on Gross Cooling Capacities (MBh) Ambient T emperature — Deg F 85 95 1 05 1 15 Ent Entering Wet Bulb T emperature — Deg F DB 61 67 73 61 67 73 61 67 73 61 67 73 CFM (F) TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC TGC SHC 75 556 459 614 356 679 [...]

  • Page 22

    RT -PRC0 07 -EN 22 P erf ormance Data T able PD-1 1 — Natural Gas Heating Capacities T able PD-9 — Electr ic Heat Air T emperatur e Rise KW T otal Cfm Input MBH 80 00 90 00 1 0000 1 1 000 1 2000 1 3 000 1 4 000 1 5 000 1 6000 1 7000 1 8 000 1 9000 20000 3 6 1 2 3 1 4 . 2 1 2 . 6 1 1 . 3 1 0 . 3 9 . 4 8 . 7 8 . 1 7 . 6 ————— 54 184 21 [...]

  • Page 23

    23 RT -PRC0 07 -EN P erformance Data T able PD-12 — Supply F an P erfor mance — 27 ½ - 35 T on Static P ressure (in. wg) 1 0.25 0.50 0.75 1 . 00 1 .25 1 .50 1 .75 2.0 0 2.25 SCFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 80 00 341 1 .39 40 1 1 .85 451 2.30 50 1 2.84 552 3.45 599 4.1 1 644 4.80 686 5.51 726 6.24 85[...]

  • Page 24

    RT -PRC0 07 -EN 24 P erf ormance Data T able PD-13 — Supply F an P erf or mance — 40 and 50 T on Static Pressure (in. wg) 1 0.25 0.50 0.75 1 .0 0 1 .25 1 .50 1 .75 2.0 0 2.25 2.50 SCFM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1200 0 365 3.02 408 3.66 448 4.32 485 4.99 522 5.70 556 6.44 588 7 .20 620 7 .96 [...]

  • Page 25

    25 RT -PRC0 07 -EN P erformance Data T able PD-14 — Component Static Pr essure Dr ops (in. W.G.) 1 Heating S ystem Filters 2 Nominal CFM Gas Heat Electric Heat 3 ID Coil High Eff . Filters Inlet Guide T ons Std Air L ow High 1 Element 2 Element Adder 2” 4” V anes Economizer 800 0 0.08 0.06 0.05 0.06 0.0 0 0.04 0.03 0.05 0.04 900 0 0.10 0.08 0[...]

  • Page 26

    RT -PRC0 07 -EN 26 P erf ormance Data T able PD-15 — Supply Air F an Dr ive Selections 7 .5 HP 1 0 HP 1 5 HP 20 HP Nominal Drive Dri ve Dri ve Drive T ons RPM No RPM No RPM No RPM No 550 A 600 B 27½T 650 C 700 700 D 750 750* E 550 A 600 B 30T 650 C 700 700 D 750 750 E 600 B 650 650 C 35T 700 70 0 D 790 790** F 800 80 0* G 500 500 H 525 525 J 575[...]

  • Page 27

    27 RT -PRC0 07 -EN P erformance Data Exhaust External Static Pressure — Inc hes of W ater Airflow High Speed Med Speed Low Speed (Cfm) ESP ESP ESP 3500 0.90 0 — — 400 0 0.860 — — 4500 0.820 — — 500 0 0.780 — 0.400 5500 0.7 45 — 0.380 600 0 0.70 0 — 0.360 6500 0.660 — 0.330 700 0 0.61 0 0.40 0 0.300 7500 0.560 0.365 0.260 800 0[...]

  • Page 28

    RT -PRC0 07 -EN 28 Contr ols V A V Units Only Sequence of Oper ation 1 Supply Air Pr essure Control Inlet Guide V ane Contr ol Inlet guide vanes are driven by a modulating 2-1 0 vdc signal from the V A V Module. A pressure transducer measures duct static pressure, and the inlet guide vanes are modulated to maintain the supply air static pressure wi[...]

  • Page 29

    29 RT -PRC0 07 -EN Contr ols reset temperature setpoint the amount of reset is equal to the reset amount setpoint. b Reset Based On Zone Or Retur n T emperat ure Zone or return reset is applied to the zone(s) in a building that tend to overcool or o verheat. The supply air temperature setpoint is adjusted based on the temperature of the critical z [...]

  • Page 30

    RT -PRC0 07 -EN 30 Contr ols the requirement, the UCP will energize the second stage electric heat contactor(s) if the appropriate limits are closed. The UCP will cycle second stage on and of f as required while k eeping stage one energiz ed. The supply fan is energized approximately 1 second before the electric heat contactor s. When the space tem[...]

  • Page 31

    31 RT -PRC0 07 -EN Contr ols Coil F reez e Prot ection FROS T A T ™ The FROS T A T system eliminates the need for hot g as bypass and adds a suction line surface temperature sensor to determine if the coil is in a condition of impending frost. If impending frost is detected primary cooling capacity is shed as necessary to prevent icing. All compr[...]

  • Page 32

    RT -PRC0 07 -EN 32 Electrical Data Electr ical Service Sizing T o correctly siz e electrical service wiring for your unit, find the appropriate calculations listed below . Eac h type of unit has its own set of calculations for MCA (Minimum Circuit Ampacity), MOP (Maximum Overcurrent P rotection), and RDE (Recommended Dual Element fuse size). R ead [...]

  • Page 33

    33 RT -PRC0 07 -EN Electrical Data T able ED-2 — 27 ½ -50 T on Electr ical Service Sizing Data 1 Fan Motors Compressor Supply Condenser Exhaust Allow able Standard/ Electrical V oltage RLA LRA Hi-Ef ficiency FLA FLA Model Characteristics Range No/T on (Ea.) (Ea.) HP FLA No. HP (Ea.) No. HP (Ea.) TC/TE/Y C*330 208/60/3 187 -229 1/10,1/15 41 .9/62[...]

  • Page 34

    RT -PRC0 07 -EN 34 Dimensional Data Figur e DD-1 — 27 1/2 - 35 T ons (TC, TE, Y C Low Heat) NOTE: The Two Horizontal Power Exhaust Hoods and the three Horizontal Fresh Air Hoods are located side by side. The Fresh Air Hoods (not shown) extend only 23 15/16” from the end of the unit. NOTES: 1. ALL DIMENSIONS INCHES. 2. THRU-BASE ELECTRICAL LOCAT[...]

  • Page 35

    35 RT -PRC0 07 -EN Dimensional Data Figur e DD-2 — 27 1/2 - 35 T ons (Y C High Heat) NOTES: 1. ALL DIMENSIONS INCHES. 2. THRU-BASE ELECTRICAL LOCATIONS ARE PRESENT ONLY WHEN OPTION IS ORDERED. 1/16 3” NOTE: The Two Horizontal Power Exhaust Hoods and the three Horizontal Fresh Air Hoods are located side by side. The Fresh Air Hoods (not shown) o[...]

  • Page 36

    RT -PRC0 07 -EN 36 Dimensional Data Figur e DD-3 — 40-50 T ons (TC, TE, Y C Low & High Heat) NOTES: 1. ALL DIMENSIONS INCHES. 2. THRU-BASE ELECTRICAL LOCATIONS ARE PRESENT ONLY WHEN OPTION IS ORDERED. 1/16 4” NOTE: The T wo Horizontal Power Exhaust Hoods and the three Horizontal Fresh Air Hoods are located side by side. The Fresh Air Hoods [...]

  • Page 37

    37 RT -PRC0 07 -EN Note: 1. Remote sensors are available for use with all zone sensors to provide remote sensing capabilities. SINGLE SETPOINT SENSOR WITH S Y S TEM FUNCTION LIGHTS (BA YSENS021*) PROGRAMMABLE NIGHT -SETBACK SENSOR (BA Y SENS020*) Dimensional Data Field Installed Sensors (V ariable Air V olume V A V)[...]

  • Page 38

    RT -PRC0 07 -EN 38 Dimensional Data (Constant V olume CV) Field Installed Sensors DU AL SETPOINT , MANUAL/A UT OMA TIC CHANGEO VER SENSOR WITH SY STEM FUNCTION LIGHTS (BA Y SENS0 1 0*) WITHOUT LED ST A TUS INDICA TOR S (BA Y SENS008*) SINGLE SETPOINT WITHOUT LED ST A TUS INDICA T ORS (BA YSENS006*) Note: 1. Remote sensors are available for use with[...]

  • Page 39

    39 RT -PRC0 07 -EN Dimensional (CV and V A V) Data Note: 1. Remote sensors are available for use with all zone sensors to provide remote sensing capabilities. REMO TE MINIMUM POSITION PO TENTIOMETER CONTROL (BA YS T A T023*) TEMPERA TURE SENSOR (BA Y SENS0 16*) ZONE TEMPERA TURE SENSOR W/TIMED O VERRIDE BUT T ON AND L OCAL SETPOINT ADJUSTMENT (BA Y[...]

  • Page 40

    RT -PRC0 07 -EN 40 W eights T able W -1 — Appro ximate Operating W eights — Lbs. 2 Notes: 1. Basic unit weight includes minimum HP Supply Fan motor. 2. Optional high static and high efficiency motor weights are in addition to the standard motor weight included in the basic unit weight. DE F TO P VIEW OF UNI T COM P RS CB A T able W-2 — P oint[...]

  • Page 41

    41 RT -PRC0 07 -EN General The units shall be dedicated downflow or horiz ontal airflow. The operating range shall be between 1 15 F and 0 F in cooling as standard from the factory for all units. Cooling performance shall be rated in accordance with ARI testing procedures. All units shall be factory assembled, internally wired, fully c harged with [...]

  • Page 42

    RT -PRC0 07 -EN 42 Mec hanical Specif ications make all heating, cooling and/or ventilating decisions in response to electronic signals from sensors measuring indoor and outdoor temperatures. The control algorithm maintains accurate temperature control, minimizes drif t from set point and provides bet ter building comfort. A centralized microproces[...]

  • Page 43

    43 RT -PRC0 07 -EN Mec hanical Specif ications A ccessor ies Roof Curb The roof curb shall be designed to mate with the unit and pro vide support and a water tight installation when installed properly . The roof curb design shall allow field-fabricated rectangular supply/return ductwork to be connected directly to the curb when used with downflow u[...]

  • Page 44

    RT -PRC0 07 -EN 44 Mec hanical Specif ications LP Conv ersion Kit Field installed conversion kit shall provide orifice(s) for simplified conversion to liquefied propane gas. No c hange of g as valve shall be required. BA Y SENS0 06* — Zone S ensor has one temperature setpoint lever , heat, off or cool system switc h, fan auto or fan on switc h. M[...]

  • Page 45

    45 RT -PRC0 07 -EN (20-60T on)[...]

  • Page 46

    The T rane Compan y An American Standard Compan y www.trane.com For more information contact your local district office, or e-mail us at comfor t@trane.com Since The T rane Compan y has a policy of continuous product and product data improvement, it reserves the right to c hange design and specifications without notice. Literature Order Number RT -[...]