Trane SCIH Installation Operation & Maintenance Download Page 35 | Manualshive

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Summary of Contents for SCIH

Page 1: ...October 2008 SXIH SVX01C EN Installation Operation Maintenance Integral Air Cooled Self Contained Unit Model SCIH SCIJ A0 and later design sequence...

Page 2: ...Cs 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 r...

Page 3: ...gn sequences Note The procedures discussed in this manual should only be performed by qualified experienced HVAC technicians Note This document is customer property and must be retained by the unit s...

Page 4: ...Plenum 14 Table 2 SCIH SCIJ Plenum Dimensions Weight in lbs 14 Figure 5 Low Ambient Damper 14 Table 3 SCIH SCIJ Low Ambient Damper Dimensions Weight in lbs 14 Figure 6 Hot Water Coil 15 Table 4 SCIH...

Page 5: ...ce of Operation 26 Table 9 Normal Operating Conditions SCIH SCIJ 26 Table 10 Controls Adjustment SCIH SCIJ 26 Maintenance 27 Table 11 Integral Air Cooled General Data 27 Maintenance Procedures 27 Clea...

Page 6: ...t 7 Heat Coil 0 none 1 5 ton hot water coil 2 7 5 ton hot water coil 3 10 15 ton hot water coil 4 5 ton steam coil 5 7 5 ton steam coil 6 10 15 ton steam coil Digit 8 Discharge Plenum 0 none 1 5 ton p...

Page 7: ...pply air SZ single zone unit airflow VAV variable air volume Note Cross reference to related publication Internal Air Cooled Self Contained Product Catalog PKG PRC009 EN Refrigeration Circuits Units a...

Page 8: ...tor and compressor and a 5 second delay timer Remote thermostat controls are field installed Field Installed Accessories These items ship separately for field installation steam coil hot water coil pl...

Page 9: ...ion is level Receiving and Handling Shipping Package Integral air cooled units ship assembled on skids Units ship in the unitary configuration assembled piped and charged with refrigerant Receiving Ch...

Page 10: ...sensitive Unit Location Install the unit in a dry indoor area between 50 and 115 F Choose a location where sound levels airflow and vibration commonly associated with heavy duty commercial equipment...

Page 11: ...2 76 74 80 24 90 34 25 0 75 5 7 5 tons back view front view side view CONDENSER RETURN RETURN AIR SIDE ACCESS SIDE ACCESS SUPPLY AIR SUPPLY AIR CONDENSER DISCHARGE 31 50 13 64 2 74 Table 1 SCIH SCIJ u...

Page 12: ...SS GRILL FORKLIFT ACCESS CONDENSER COIL 2 68 74 80 24 90 85 83 22 70 15 20 10 03 15 20 16 67 18 86 14 77 18 86 34 25 0 75 10 15 tons back view front view side view CONDENSER RETURN RETURN AIR SIDE ACC...

Page 13: ...H SVX01C EN 13 Installation Figure 3 SCIH SCIJ component overview inlet filter frame airflow vent airflow airflow low ambient damper outlet water coil supply airflow supply airflow dimensions and weig...

Page 14: ...num dimensions weight in lbs Unit Size A B C Grill Size W x H Weight 5 7 5 ton 56 16 31 52 x 12 95 10 15 ton 85 7 8 16 31 81 7 8 x 12 141 Figure 5 Low ambient damper Table 3 SCIH SCIJ low ambient damp...

Page 15: ...nstalled 2 Coil connections are mirror image and can be mounted with either left or right hand connections Figure 7 Steam coil Table 5 SCIH SCIJ steam coil dimensions weights in lbs return supply Unit...

Page 16: ...cts away from unit to protect unit from rain and snow entering with condenser air Auxiliary louvers and hoods may be required for this purpose Attach ducts to unit with canvas section duct connectors...

Page 17: ...ements Size protection devices according to the electrical date on the unit nameplate 3 If using a field supplied disconnect install it at or near the unit in accordance with NEC Do not mount a field...

Page 18: ...isconnect switch does not exceed 2 0 percent the imbalance is caused by faulty wiring within the unit Be sure to conduct a thorough inspection of the unit electrical wiring connections to locate the f...

Page 19: ...tected power supply wiring to a field supplied installed disconnect and unit power terminal block or to the optional unit mounted disconnect switch Properly ground the unit Table 7 Integral air cooled...

Page 20: ...ll end for end and bolt it to the support channels with the discharge towards the back Mounting holes are provided in the fan scroll 6 Align the fan and motor sheaves Install the belt and adjust the b...

Page 21: ...s previously assembled to the mounting bracket to the right panel of the damper using the four screws 1 4 x 5 8 provided Be sure the damper actuator is in the closed position when installing 5 Connect...

Page 22: ...lled for either right or left hand connections However steam coils must have the condensate lines connected to the bottom outlet with the top outlet capped 7 A heating coil control relay is factory pr...

Page 23: ...rial provided completely around the top of the unit frame as shown in the detail drawing 3 Tighten the screws provided as shown Use screws on the rear right and left sides through the pilot holes on t...

Page 24: ...ng material Look for ship with accessories that are packaged separately and placed inside the access panel fan section or compressor section See the Receiving and Handling p 9 section Unit Location En...

Page 25: ...djust temperature setting to below room temperature The evaporator fan condenser fan s and compressor s should start Note These units are equipped with high efficiency scroll compressors Check for pro...

Page 26: ...nd evaporator will operate on a signal from the thermostat calling for cooling With the fan switch set to Auto and the system switch set to Cool the following sequence takes place On a rise in room te...

Page 27: ...all worn contacts Table 11 Integral air cooled general data Nominal Tons 5 7 5 10 15 ARI capacity btu h 65 000 91 000 121 900 177 200 EER 11 20 10 36 10 38 9 76 Refrigerant type circuit charge lbs R 4...

Page 28: ...e to follow all safety instructions could result in death or serious injury To clean the refrigerant coil use a soft brush and sprayer such as a garden pump up or high pressure type In addition use a...

Page 29: ...nt into containment When leak checking be aware of any new leak test methods which eliminate refrigerant as a trace gas When cleaning system components or parts do not use CFC11 R11 or CFC113 R113 Ref...

Page 30: ...leaks when nitrogen is added 5 Retest the system to make sure new connections are solid 6 If a leak is suspected after the system has been fully charged with refrigerant use a halogen leak detector ha...

Page 31: ...or if filters are dirty 2 Inspect coils for icing Icing on the coils may indicate low airflow supply restricted airflow from dirty fins 3 Check the fan belt condition and tension Adjust tension if bel...

Page 32: ...ls if necessary 7 Compressor shorted open or burned 7 Check for shorts opens and grounded Remove and replace compressor 8 Defective compressor 8 Remove and replace Problem Remedy Unit held off by safe...

Page 33: ...rge pressure with gauges If refrigerant is low recharge system 5 Overcharge of refrigerant indicated by high wattage and sweating of the compressor return line 5 Reclaim excess refrigerant 6 Thermosta...

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Page 36: ...e mail us at comfort trane com Literature Order Number SXIH SVX01C EN Date October 2008 Supersedes SXIH SVX01C EN June 2008 Trane has a policy of continuous product and product data improvement and r...

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