Trane RTCA 108-216 - Manual

RLC-SVX03A-E4 9 Installation responsibilities Generally, the contractor must do thefollowing when installing anRTUB/RTCA unit. • Install the units on a flat foundation, level (within 1/4"[6 mm] across the length of theunit), and strong enough to supportunit loading. • Install the units per the i...

10 Special Lifting and MovingInstructions A specific lifting method isrecommended as follows: 1. Four lifting points are built into the unit. 2. Slings and spreader bar to be provided by rigger and attached tothe four lifting points. 3. Minimum rated lifting capacity (vertical) of each sling andspre...

11 Installation condensation coils must beprotected from side winds whentheir speed exceeds 16 km/h.Position the unit above the averageheight of snow observed in theregion where it is installed. Neverinstall temporary or permanentobjects (tarp or roof) over the unit,because recycling of hot air woul...

12 Drainage Provide a large-capacity drain forwater vessel drain-down duringshutdown or repair. The evaporatoris provided with a drain connection.All local and national codes apply.The vent on the top of theevaporator water box is provided toprevent a vacuum, by allowing airinto the evaporator for c...

13 Follow the manufacturer'sinstructions for the installationprocedures. Flow Switch Installation 1. Mount the switch upright, with a minimum of 5 pipe diameters ofstraight horizontal run on eachside. Do not install close toelbows, orifices, or valves. Note:The arrow on the switch mustpoint in the d...

14 Installation the values given by the pressuregauges, open one valve and closethe other. Refrigerant Safety Valves Discharge valves are an option forthe RTUB. If installation requires thisvalve to be mounted, it is mandatoryto install two safety valves: onebetween the compressor and theservice val...

19 Equivalent pressure drops To correctly determine the size of theliquid and discharge lines forconnection on site, it is firstnecessary to establish the equivalentpressure drops for each line,comprising the additional flowresistances, from bends, valves, etc.As a first approximation, we canestimat...

20 Vacuum pumping For this operation, use a vane pumpmaking it possible to obtain a partialvacuum or 100 microns or less.When pumping out to create avacuum, it is important to connectthe pump to the high and lowpressure sides of the system. Followthe pump manufacturer'srecommendations. The pipes use...

21 Pre-start checkout Installation Checklist When installation is complete, butprior to putting the unit into service,the following pre-start proceduresmust be reviewed and verified: • Inspect all wiring connections to be sure they are clean and tight.   W WA AR RN NIIN NG G Disconnect all electri...

22 Operation motor rotation requires confirmationof the electrical phase sequence ofthe power supply. The motor isinternally connected for clockwiserotation with the incoming powersupply phased A-B-C. When rotation is clockwise, thephase sequence is usually called"ABC;" when counterclockwise...

23 operating load. Overheating mayvary slightly on the circuit if thesystem load is lower, when the slidevalve is moving. Overheating must stabilize atapproximately 4°C when the abovecomponents have stabilized. Subcooling Normal subcooling for each circuitranges from 8-10°C, depending onthe units. I...

25 Perform all maintenance proceduresand inspections at the recommendedintervals. This will prolong the life ofthe chiller and minimize thepossibility of costly failures. After theunit has been operating forapproximately 30 minutes and thesystem has stabilized, check theoperating conditions and comp...

29 The evaporator is large enough tohold all the charge, for any unit,below the centerline of the shell.Therefore, no special precautions arerequired to restart the unit afterisolating the charge in theevaporator. Filter ReplacementProcedure A dirty filter is indicated by atemperature gradient acros...

Trane has a policy of continuous product and product data improvement and reserves the right tochange design and specifications without notice. Only qualified technicians should perform theinstallation and servicing of equipment referred to in this publication. The Trane CompanyAn American Standard ...