Instruction/ maintenance manual of the product CG-PRC007-EN Trane
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Air -Cooled Liquid Chillers 1 0 to 60 T ons CG-PRC007 -EN Apr il 20 04.
© 20 03 American Standard Inc. All rights reserved CG-PRC007 -EN Intr oduction Air -Cooled Liquid Chillers 1 0, 15 T ons 20–60 T ons Design and manufacturing excellence makes T rane a leader in the air -cooled c hiller marketplace.
3 Contents CG-PRC001 -EN Intr oduction F eatur es and Benefits Application Consider ations Selection Pr ocedur e Model Number Description Gener al Data P erfor mance Data P erformance Adjustment F act.
CG-PRC007 -EN 4 F eatures and Benef its Installation Small siz e, complete factory wiring, easy lif ting provisions, factory installed options and star t-up control provide fast, easy installation. A complete factory run test is performed on eac h unit, eliminating potential star t-up problems.
5 CG-PRC007 -EN F eatures and Benef its The 1 0 and 1 5-ton air -cooled Cold Generator ™ c hillers, with T rane direct drive hermetic scroll compressor s, has outstanding standard features and additional benefits that make selection, installation, and servicing easy .
CG-PRC007 -EN 6 F eatures and Benef its (20–60 T on) Other Standard F eatur es • T rane 3-D Scroll compressors • Advanced motor protection • 30 0 psi w ater side evaporator • Evaporator insu.
7 CG-PRC007 -EN F eatures and Benef its Enhanced Contr ols Int elliPak Chiller Unit Contr ol Module (UCM) Micr oprocessor Contr ol The brain of the 20 to 60 ton air -cooled c hiller is its Unit Control Module (UCM).
CG-PRC007 -EN 8 F eatures and Benef its T r ane 3-D Scroll Compr essor Simple Design with 70% Few er Par ts 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.
9 CG-PRC007 -EN Application Considerations Cer tain application constraints should be considered when sizing, selecting and installing T rane air -cooled c hillers. Unit and system reliability is of ten dependent upon proper and complete compliance with these considerations.
CG-PRC007 -EN 10 Application Considerations c Pr ovide Later al Clearance The condenser coil inlet must not be obstructed. A unit installed closer than the minimum recommended distance to a wall or ot.
11 CG-PRC007 -EN CONTROLS 1 T emperat ure Controller In order to provide stable system operation and to prevent excessive compressor cycling, the temperature control sensor in all 20-60 ton c hillers is located in the supply (outlet) solution. The temperature sensor in all 1 0 and 1 5 ton c hillers is located in the return (inlet) solution.
CG-PRC007 -EN 12 point and adequate ethylene glycol concentration for safe operation. The maximum catalog leaving solution temperature from the evaporator is 65°F for outdoor ambients up to 1 15°F . High leaving water temperatures exceeding this may result in excessive suction temperatures and, therefore, inadequate motor cooling.
13 CG-PRC007 -EN Application Considerations Figur e AC-1 — Recommended Piping Components F or T ypical Evaporat or Installation 20–60 T on 1 0, 15 T on Note: Provide shutoff valves in the evaporator inlet and outlet to facilitate water temperature sensor removal.
CG-PRC007 -EN 14 S election P rocedure The c hiller capacity tables presented in the “P erformance Data” section cover the most frequently encountered leaving water temperatures. The tables reflect a 1 0°F temperature drop through the evaporator .
15 CG-PRC007 -EN Model Number Description CGA 120 B 3 00 B A 123 456 7 8 9,10 11 12 DIGIT 1 0 — Leaving Solution Set point 0 = Standard Expansion V alve 40-60°F Leaving W ater (CGA100 & CGA120 .
CG-PRC007 -EN 16 General Data T able GD-1 — General Data — 1 0–60 T on Units 1 0 T on 15 T o n 20 T on 25 T o n 30 T o n 40 T on 50 T o n 60 T on Model Number CGA120 CGA180 CGAF-C20 CGAF-C25 CGA.
17 CG-PRC007 -EN Chilled Altitude Fouling Water Sea Level 2,0 00 Feet 4,0 00 Feet 6,0 00 Feet Factor ∆ T CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW 6 1 .0 0 1 .66 1 .0 0 0.98 1 .63 1 .0 1 0.95 1 .59 1 .02 0.93 1 .54 1 .05 8 1 .0 0 1 .25 1 .0 0 0.98 1 .
CG-PRC007 -EN 18 Chart P AF-1 — Ev aporator Wat er Pressur e Drop 1 0 to 60 T on Air -Cooled Chillers P erf ormance A djustment F actor s 1 . 5 2 2 .
19 CG-PRC007 -EN Chart P AF-2— Eth ylene Glycol P erformance F act ors Chart P AF-3— Pr opylene Glycol Perf o r mance F actors P erf ormance A djustment F actor s.
CG-PRC007 -EN 20 Chart P AF-4— Eth ylene Glycol and Prop ylene Glycol Perf ormance F actors P erf ormance A djustment F actor s.
21 CG-PRC007 -EN P erf ormance Data — 60 HZ (1 0–1 5 T on) F ull Load Entering Condenser Air T emperature (Deg ree F) 75.0 85.0 95.0 105.0 115.0 L WT P ercent Capacity System Capacity System Capacity System Capacity System Capacity System (Deg F) Glycol (T ons) KW EER (T ons) KW EER (T ons) KW EER (T ons) KW EER (T ons) KW EER 20 28 6.
CG-PRC007 -EN 22 P erf ormance Data — 60 HZ T able PD-3 — 20 T on — CGAF-C20 Entering Condenser Air T emperature (Deg ree F) 75.0 85.0 95.0 105.0 115.
23 CG-PRC007 -EN P erf ormance Data — 60 HZ (30–40 T on) F ull Load Entering Condenser Air T emperature (Degree F) 75.0 85.0 95.0 105.0 115.0 L WT P ercent Capacity System Capacity System Capacity System Capacity System Capacity System (Deg F) Glycol (T ons) KW EER (T ons) KW EER (T ons) KW EER ( T ons) KW EER ( T ons) KW EER 20 28 18.
CG-PRC007 -EN 24 P erf ormance Data — 60 HZ Entering Condenser Air T emperature (Deg ree F) 75.0 85.0 95.0 105.0 115.0 L WT P ercent Capacity System Capacity System Capacity System Capacity System Capacity System (Deg F) Glycol (T ons) KW EER (T ons) KW EER (T ons) KW EER (T ons) KW EER (T ons) KW EER 20 28 37.
25 CG-PRC007 -EN P erf ormance Data — 50 HZ (1 0–30 T on) F ull Load Entering Condenser Air T emperature (Degree F) 85.0 95.0 105.0 115.0 120.0 L WT P ercent Capacity System Capacity System Capacity System Capacity System Capacity System (Deg F) Glycol (T ons) KW EER ( T ons) KW EER (T ons) KW EER ( T ons) KW EER (T ons) KW EER 40 0 7.
CG-PRC007 -EN 26 Entering Condenser Air T emperature (Deg ree F) 85.0 95.0 105.0 115.0 120.0 L WT Percent Capacity System Capacity System Capacity System Capacity System Capacity System (Deg F) Glycol (T ons) KW EER (T ons) KW EER (T ons) KW EER (T ons) K W EER ( T ons) KW EER 40 0 28.
27 CG-PRC007 -EN P erf ormance Data — 60 HZ T able PD-18— P art Load Data, ARI Points (1 0-60 T ons) Entering Condenser Air T emperature (Degrees F) Model 95 86.9 84.5 77 .7 77 .3 72.5 72.3 71 .5 T ons Number 100% Load 86% Load 82% Load 71% Load 70% Load 62% Load 62% Load 61% Load EER 1 0.
CG-PRC007 -EN 28 P erf ormance Data — 50 HZ (1 0–30 T on) P ar t Load P ercent Entering Condenser Air T emperature (Deg rees F) Load 75 85 95 105 115 120 EER 14.2 12.3 10.6 9.0 7.6 7.0 100 Capacity 21.7 20.7 19.7 18.6 17.4 16.8 System KW 18.3 20.1 22.
29 CG-PRC007 -EN P ercent Entering Condenser Air T emperature (Deg rees F) Load 75 85 95 105 1 15 120 Percent Entering Condenser Air T emperature (Deg rees F) Load 75 85 95 105 1 15 120 EER 14.1 12.2 10.4 8.8 7.4 6.7 100 Capacity 52.2 49.8 47.3 44.5 41.
CG-PRC007 -EN 30 Contr ols (Interface with Other Contr ol S ystems) Stand-Alone Unit Interface to stand-alone units is very simple; only a remote auto-stop or c hilled water flow interloc k signal for sc heduling is required for unit operation.
31 CG-PRC007 -EN ELECTRICAL CONTROL S Y STEM The controls used on CGA 1 0 and 15-ton units are classified either as “safety” controls or “ operational” controls. Brief descriptions of the specific safety and operating controls used in the CGA control sc heme are provided in the following paragraphs.
CG-PRC007 -EN 32 If compressor number one can’t satisfy the cooling demand, WTT’ s second stage switc h closes, allowing power to pass through the CWFIR contacts, the DBC, the ASCT2, the RR2 contacts, the LPC02, and the HPC02 to energize the CC2 coil.
33 CG-PRC007 -EN Simple Int erface with All Control Syst ems The IntelliP ak controls afford simple interface with T rane T racer ™ systems, pro viding broad control capabilities for Building Automation systems.
CG-PRC007 -EN 34 Standard Contr ol F eatur es Human Interf ace (HI) Panel The Human Interface (HI) P anel provides a 2 line X 40 c haracter clear English language liquid crystal display and a 16 but ton k eypad for monitoring, set ting, editing and controlling.
35 CG-PRC007 -EN Head Pr essure Control — Condenser head pressure control is pro vided in the UCM by staging condenser fans on or of f to maintain the saturated condensing temperature. This function will allow cooling operation down to 30°F as standard.
CG-PRC007 -EN 36 Gener ic Building A utomation S ystem Module (GBAS) — T wo Generic Building Automation System Modules (GBAS) are available as an option to provide broad control capabilities for building automation systems, other than the T rane ’ s T racer system.
37 CG-PRC007 -EN T able ED-1 — Electrical Data Unit Wiring Motor Data Model Nameplate V oltage Max Fuse Rec. Dual Compressor (Ea) Fans (Ea) T on s Number V oltage Range M CA Size Element Qty . R LA LR A Qty K W F L A CGA120B1 208-230/60/1 187 -254 7 4 1 0 0 — 2 30 169 1 0.
CG-PRC007 -EN 38 T able ED-2 — Electrical D ata Unit Wiring Motor Data Model Nameplate V oltage Max Fuse Rec. Dual Compressor (Ea) Fans (Ea) T ons Number V oltage Range MCA Size Element Qty . RL A L RA Qty K W F L A 1 0 CGA1 0 0BD 380-415/50/3 342-456 24.
39 CG-PRC007 -EN Dimensional Data Figur e DD-1 — CGA -120B Unit Dimensions (1 0 T on) Notes: 1. Minimum clearance around the perimeter of the unit is 3 feet.
CG-PRC007 -EN 40 Dimensional Data Figur e DD-2 — CGA-1 80B Unit Dimensions (1 5 T on) Notes: 1. Minimum clearance around the perimeter of the unit is 3 feet.
41 CG-PRC007 -EN Dimensional Data Figur e DD-3 — CGAF-C20 Unit Dimensions (20 T on).
CG-PRC007 -EN 42 Dimensional Data Figur e DD-4 — CGAF-C25 Unit Dimensions (25 T on).
43 CG-PRC007 -EN Dimensional (30 T on) Data Figur e DD-5 — CGAF-C30 Unit Dimensions.
CG-PRC007 -EN 44 Dimensional (40 T on) Data Figur e DD-6 — CGAF-C40 Unit Dimensions.
45 CG-PRC007 -EN Dimensional (50 T on) Data Figur e DD-7 — CGAF-C50 Unit Dimensions.
CG-PRC007 -EN 46 Dimensional (60 T on) Data Figur e DD-8— CGAF-C60 Unit Dimensions.
47 CG-PRC007 -EN W eights T able W -1 — Appro ximate Cor ner Weights (lbs) 1 0-T on Unit Isolator Loading T on s Model Number 1 2 3 4 Operating Wt. Shipping Wt. 10 CGA 120B 161 164 1 03 101 529 576 T able W -2 — Appro ximate Cor ner Weights (lbs) 15-T on Unit Isolator Loading T ons Model Number 1 2 3 4 Operating Wt.
CG-PRC007 -EN 48 Mec hanical Specif ications (1 0–1 5 T on) General Units shall be assembled on heavy gauge steel mounting/lif ting rails and shall be weatherproofed.
49 CG-PRC007 -EN Mec hanical Specif ications (20–60 T on) GENERAL All c hillers are factory run-tested to confirm proper operation. Units are c hec k ed on a computer -based test stand at typical ambient and water conditions and control operation is monitored.
CG-PRC007 -EN 50 hardw are, software and interconnecting wiring are in proper operating condition. The modules (boards) shall be protected to prevent RFI and voltage transients from affecting the board’ s circuits. All field wiring shall be terminated at separate, clearly marked terminal strip.
51 CG-PRC007 -EN.
T rane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. Literature Order Number CG-PRC0 07 -EN File Number PL - RF -CG-PRC0 07 -EN-0404 Supersedes CG-PRC0 07 -EN-0503 Stoc king Location W ebbMason T rane A business of American Standard Companies www.
An important point after buying a device Trane CG-PRC007-EN (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Trane CG-PRC007-EN yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Trane CG-PRC007-EN - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Trane CG-PRC007-EN you will learn all the available features of the product, as well as information on its operation. The information that you get Trane CG-PRC007-EN will certainly help you make a decision on the purchase.
If you already are a holder of Trane CG-PRC007-EN, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Trane CG-PRC007-EN.
However, one of the most important roles played by the user manual is to help in solving problems with Trane CG-PRC007-EN. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Trane CG-PRC007-EN along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
