Trane Mini-4-Way Cassette-Indoor Installation Manual

SAFETY WARNINGOnly qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating,

10 VRF-SVX28A-ENInstallation7. Tighten the nuts to suspend the unit following the guidelines in the figure below. 8. Maintain proper spacing between

VRF-SVX28A-EN 11InstallationInstalling Refrigerant PipingConnect field-supplied piping using flared connections (not supplied) or by brazing. The larg

12 VRF-SVX28A-ENInstallation3. Attach the yoke to the flaring bar, centering the conical part over the end of the pipe that is extending above the fl

VRF-SVX28A-EN 13InstallationLeak Testing Pipe Connections Notes:• All required piping pressure tests must be completed in accordance with national and

14 VRF-SVX28A-ENInstallationInstalling the Drain System1. Push the supplied drain hose as far as possible over the drain hose port. • Do not apply ex

VRF-SVX28A-EN 15Installation• Do not install the hose with an upward gradient after the connection port or leaks will result. • The hose should not be

16 VRF-SVX28A-ENInstallationCentralized DrainageIf the installation requires more than three indoor units, install the main air vent at the front of

VRF-SVX28A-EN 17InsulationInsulationAfter determining that there are no leaks in the refrigerant pipes or drainage hose, insulate them as described in

18 VRF-SVX28A-ENWiring the UnitWiring the UnitObserve the following precautions when making electrical connections. • Make all electrical connections

VRF-SVX28A-EN 19Wiring the UnitFigure 1. Wiring diagramFigure 2. Conduit bracket installation 1(L)2(N) F2F1 1(L)1(L)2(N)2(N)F1F1F2F2F4F3F3 F4208–23

© 2013 Trane All rights reserved VRF-SVX28A-ENIntroductionRead this manual thoroughly before operating or servicing this unit.Warnings, Cautions, a

20 VRF-SVX28A-ENConfigurationConfigurationAll VRF indoor units are factory configured. If modifications are required, one of the following control de

VRF-SVX28A-EN 21ConfigurationFigure 3. VRF Wireless Remote ControlMode buttonFan upTemp upTemp downFan downPower button2-digit segment

22 VRF-SVX28A-ENConfigurationThe 2-Digit SegmentsEach 2-digit segment is differentiated from the others by a combination of operation mode and timer

VRF-SVX28A-EN 23ConfigurationMode 2: Option SettingWhen digit 2 is set to a value of “2,” the options shown in Table 1 can be set to the values in the

24 VRF-SVX28A-ENConfiguration14 External control0: Disabled1: On/Off control2: Off-only control15 External control output0: Thermostat control1: User

VRF-SVX28A-EN 25ConfigurationMode 5: Option SettingWhen digit 2 is set to a value of “5,” the options shown in Table 2 can be changed to the values in

26 VRF-SVX28A-ENConfigurationFigure 6. Heat recovery unit operating in auto-changeover mode9Time required for mode changeNote: Applies only when digi

VRF-SVX28A-EN 27ConfigurationMode A: AddressingWhen digit 2 is set to a value of “A,” unit address settings can be changed. See Figure 7, Figure 8, an

28 VRF-SVX28A-ENConfigurationMode d: Specific Digit ChangingWhen digit 2 is set to a value of “d,” a single, specific digit can be changed. See Figur

VRF-SVX28A-EN 29ConfigurationFigure 10. Example of using the specific digit changing mode to change an option settingThe example in Figure 11 shows ho

Table of ContentsVRF-SVX28A-EN 3Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30 VRF-SVX28A-ENConfigurationTable 4. Specific digit changing mode: Digit 2 = dDisplay screen (Mode and On/Off)DigitOption Set digit to...1 Factory s

VRF-SVX28A-EN 31OperationOperationFamiliarize yourself with the unit components and operating tips before operating the unit.ComponentsNote: Your unit

32 VRF-SVX28A-ENOperationInternal ProtectionsInternal protections operate if an internal fault occurs in the unit. Note: If the heat pump is operatin

VRF-SVX28A-EN 33Operation2. Detach the grill by removing the two safety clip from the front panel.To clean only the filter, proceed to step 4.3. Pull

34 VRF-SVX28A-ENOperationNote: If the unit will not be used for an extended period of time, operate it in Fan mode for 3–4 hours to thoroughly dry it

VRF-SVX28A-EN 35TroubleshootingTroubleshootingRefer to Table 6 for solutions to common problems and to Table 7 for a list of alarm conditions with cor

36 VRF-SVX28A-ENTroubleshootingIf an error occurs, one of more of the LEDs on the display (see “Components” for their location) will flicker. As a pr

VRF-SVX28A-EN 37TroubleshootingCondenser mid-sensor is loose E241Off Flickering Flickering FlickeringRefrigerant leakage (2nd detection) E554Abnormall

38 VRF-SVX28A-ENWarranty For Trane Advantage™ VRF Systems and Related AccessoriesWarranty For Trane Advantage™ VRF Systems and Related AccessoriesPro

VRF-SVX28A-EN 39

4 VRF-SVX28A-ENOperating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Operating Mode f

The manufacturer optimizes the performance of homes and buildings around the world. A business of IngersollRand, the leader in creating and sustaining

VRF-SVX28A-EN 5Model Number DescriptionDigit 1: RefrigerantDigit 2: Brand name Digit 3: System typeDigit 4: Configuration Type (also see separate tab)

6 VRF-SVX28A-ENPreparing for InstallationPreparing for InstallationAccessoriesIn addition to product literature, the following accessories are suppli

VRF-SVX28A-EN 7Preparing for InstallationUnit Dimensions1.87(47.5) 22.64(575)4.72(120)8.82(224)8.07(205)6.3(160)11.61 (295)9.84 (250)11.81(300)7.87(20

8 VRF-SVX28A-ENPreparing for InstallationService ClearancesObstruction59 (1500) minimum0.79 (20)0.67 (17)59 (1500) min.11.7 (297)

VRF-SVX28A-EN 9InstallationInstallationReview “Installation Considerations” before proceeding with installation.Follow the procedures in these section