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Summary of Contents for Trane SCIH
- Page 1 Installation Operation Maintenance Integral Air-Cooled Self-Contained Unit Model SCIH/SCIJ A0 and later design sequence SXIH-SVX01C-EN October 2008...
- Page 2 CFCs such as HCFCs and HFCs. Responsible Refrigerant Practices! Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures.
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Page 3: Literature Change History
Overview of Manual This booklet describes proper installation, start-up, operation, and maintenance procedures for the Integral Air-Cooled unit, model SCIH/SCIJ. Carefully review the information within this manual and follow the instructions to minimize the risk of improper operation and/or component damage. -
Page 4: Table Of Contents
Converting fan to horizontal discharge Low Ambient Damper Installation (SCIH only) ..... 21 ......21 Figure 9. - Page 5 Normal Operating Conditions (SCIH / SCIJ) ......26 Table 10. Controls Adjustment (SCIH / SCIJ) Maintenance .
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Page 6: Integral Air-Cooled Model Number Description
Model Number Description Integral Air-Cooled Accessory Model G = 10-ton, 460V condenser, OS motor H = 15-ton, 460V condenser, OS motor Model Number Number Description J = 5-ton, 575V condenser, OS motor K = 7.5-ton, 575V condenser, OS motor Description L = 10-ton, 575V condenser, OS motor Digit 1 - Parts/Accessories M = 15-ton, 575V condenser, OS motor... -
Page 7: General Information
General Information The integral air-cooled unit, model SCIH/SCIJ, is a high efficiency, vertical air cooled air conditioner. Units have either front or top discharge configuration options and easy service access. Unit construction is heavy gage steel with a baked enamel finish. Available unit voltages are 208/3/60, 230/3/60, and 460/3/60, 575/3/60. -
Page 8: Controls
General Information Controls The standard control panel consists of a high voltage terminal block, overload relays for each fan motor, transformer, 3-pole 24 volt contactors for each motor and compressor, and a 5-second delay timer. Remote thermostat controls are field-installed. Field Installed Accessories These items ship separately for field installation: •... -
Page 9: Installation
Installation Pre-Installation Considerations Checklist The following checklist gives an overview of the recommended pre-installation considerations. Follow the procedures in this section to ensure installation is complete and adequate for proper unit operation. Verify this checklist is complete before beginning unit installation. –... -
Page 10: Acoustic Considerations
Installation – Notify your Trane representative of the damage and arrange for repair. Have the carrier inspect the damage before making any repairs to the unit. Unit Storage Take precautions to prevent condensate from forming inside the unit's electrical compartments and motors if the unit is stored before it is installed. -
Page 11: Dimensions And Weights
CONDENSER ACCESS RETURN CONDENSER COIL FORKLIFT ACCESS 2.76 2.76 back view side view front view Table 1. SCIH/SCIJ unit dimensions & weights, in-lbs. Unit Size Ship Wgt. Oper. Wgt. 5 & 7.5 ton 56.69 20.63 20.63 18.92 18.92 10 ton —... - Page 12 Installation dimensions and weights Figure 2. Model SCIH10 & 15-ton units 10 & 15-tons 31.50 13.64 85.83 SUPPLY 22.70 15.20 10.03 15.20 16.67 18.86 14.77 18.86 2.74 SUPPLY RETURN SIDE ACCESS GRILL CONDENSER DISCHARGE CONTROLS COMPRESSOR ACCESS SIDE ACCESS CONDENSER ACCESS RETURN CONDENSER COIL...
- Page 13 Installation dimensions and weights Figure 3. SCIH/SCIJ component overview supply airflow water coil outlet vent supply airflow airflow inlet filter frame airflow low ambient damper airflow SXIH-SVX01C-EN...
- Page 14 10 & 15 ton 85 7/8 16¼ 31½ 81 7/8 x 12¾ Figure 5. Low ambient damper Table 3. SCIH/SCIJ low ambient damper dimensions & weight, in-lbs. Unit Size Weight 5 & 7.5 ton 19 1/8 7 7/8 10 & 15 ton 52¾...
- Page 15 2. Coil connections are mirror-image and can be 3.239 mounted with either left or right-hand connections. CONNECTION CONNECTION Table 4. SCIH/SCIJ hot water coil dimensions & weight, in-lbs. Unit Size Wet Coil Weight Dry Coil Weight 5 & 7.5 Ton 52 1/2 47 1/16 10 &...
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Page 16: Mechanical Requirements
Residence Type Warm Air Heating and Air Conditioning Systems (NFPA 90B). Make duct connections with a flexible material such as heavy canvas. If a fire hazard exists, Trane recommends using Flexweave 1000, type FW30 or equivalent canvas. Use three inches for the return duct and three inches for the discharge duct. - Page 17 Installation electrical requirements WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. Supply Power Wiring It is the installer's responsibility to provide power supply wiring to the unit.
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Page 18: Voltage Imbalance
Installation electrical requirements and installation procedure Voltage Imbalance WARNING Live Electrical Components! During installation, testing, servicing and troubleshooting of this product, it may be necessary to work with live electrical components. Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks. Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury. -
Page 19: Installation Checklist
Installation installation procedure Table 7. Integral air-cooled oversized motor electrical data Condenser Evaporator Compressor Fan Motor Fan Motor Unit Size Voltage 208-230/60/3 22.9 155.0 5.81 4.42 38.9 460/60/3 10.7 75.0 2.63 2.00 18.0 575/60/3 54.0 2.10 1.60 14.3 208-230/60/3 25.0 179.0 8.32 5.81... -
Page 20: Fan Discharge Conversion Procedure
Installation installation procedure Field Installed Control Wiring (Optional) – Complete the field wiring connections. Note: All field installed wiring must comply with NEC and applicable local codes. Fan Discharge Conversion Procedure Refer to Figure 8, p. 20 Table 8, p. 20 while following the steps below to convert the fan discharge from vertical to horizontal. -
Page 21: Low Ambient Damper Installation (Scih Only)
Installation installation procedure Low Ambient Damper Installation (SCIH only) Reference Figure 9, p. 21 and follow the procedure below to install the low ambient damper option. 1. Using a 1" hole saw, make a hole on the right side of the condenser fan discharge panel as shown. -
Page 22: Hydronic Coil Installation
Installation Hydronic Coil Installation Reference Figure 10, p. 22 and follow the procedure below to install the hydronic coil. 1. Remove the front grill, filters, two upper frame screws, and two lower frame screws. 2. Install the hydronic coil in the space previously occupied by the grill. 3. -
Page 23: Plenum Installation
Installation pre-startup requirements Plenum Installation Reference Figure 11, p. 23 and follow the procedure below to install the plenum. 1. Before installing the plenum, ensure the evaporator fan is in the discharge position. If not, see “Fan Discharge Conversion Procedure, ” p. 2. -
Page 24: Pre-Startup Checklist
Installation Startup Pre-Startup Checklist Complete this checklist after installing the unit to verify all recommended installation procedures are complete before unit startup. This does not replace the detailed instructions in the appropriate sections of this manual. Always read the entire section carefully to become familiar with the procedures. -
Page 25: Unit Startup Procedures
Installation Unit Startup Procedures WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. 1. -
Page 26: Operation
Rearming High pressure control 395 ± 15 psig (SCIH) / 609 ± 17 psig (SCIJ) 280 ± 20 psig (SCIH) / 479 ± 29 psig (SCIJ) Low pressure control 25 ± 8 psig (SCIH) / 51 ± 7 psig (SCIJ) 80 ±... -
Page 27: Maintenance
Maintenance Table 11. Integral air-cooled general data Nominal Tons ARI capacity - btu/h 65,000 91,000 121,900 177,200 11.20 10.36 10.38 9.76 Refrigerant type/circuit charge (lbs.) R-410A/14.0 R-22/14.3 R-22/9.3 R-22/11.7 Shipping weight – lbs. 1087 1087 1495 1897 Operating weight – lbs. 1027 1027 1445... -
Page 28: Cleaning The Condenser Coils
Maintenance – Clean condenser fans. – Clean and repaint any corroded surface. Periodic Maintenance Procedures This section describes specific maintenance procedures that must be preformed as a part of the normal maintenance program for this unit. Be certain to disconnect electrical power to the unit before performing these procedures. - Page 29 5. Reinstall all unit components and panels, and restore electrical power and gas supply to the unit. Refrigerant System Follow the Trane recommended procedures on operation, maintenance, and service to ensure refrigerant conservation and emission reduction. Also, pay specific attention to the following: – Whenever removing refrigerant from air conditioning or refrigerating equipment, recover for reuse, recycle, reprocess (reclaim), or properly destroy it.
- Page 30 Maintenance WARNING Hazard of Explosion! Use only dry nitrogen with a pressure regulator for pressurizing unit. Do not use acetylene, oxygen or compressed air or mixtures containing them for pressure testing. Do not use mixtures of a hydrogen containing refrigerant and air above atmospheric pressure for pressure testing as they may become flammable and could result in an explosion.
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Page 31: Periodic Checklists
Maintenance maintenance procedures/periodic checklists CAUTION Compressor Damage! Never manually or automatically pump down below 7 psig. This may cause the compressor to operate in a vacuum and cause compressor damage. Periodic Checklists Monthly Checklist The following checklist provides the recommended maintenance schedule to keep the unit running efficiently. -
Page 32: Troubleshooting
Unit cutout on high pressure control, set at Verify the airflow is uninterrupted. Also, verify that the low 395 psig for SCIH or 609 psig for SCIJ ambient damper is set properly, allowing condensing temperatures of 90–135°F. Reset high pressure switch to start. - Page 33 Maintenance maintenance procedures WARNING Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury. Problem Remedy Insufficient cooling...
- Page 36 Supersedes SXIH-SVX01C-EN June 2008 www.trane.com For more information, contact your local Trane Trane has a policy of continuous product and product data improvement and reserves the right to office or e-mail us at comfort@trane.com change design and specifications without notice.
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