Trane 1-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-SVX27A-ENInstallation7. Tighten the nuts to suspend the unit following the guidelines in the figure below. 8. Maintain proper spacing between

VRF-SVX27A-EN 11InstallationInstalling Refrigerant PipingConnect field-supplied piping using flared connections (not supplied) or by brazing. The larg

12 VRF-SVX27A-ENInstallation1. Slide the flare nut over the pipe to be flared.2. Slide the end of the pipe into the hole on the flaring bar that fits

VRF-SVX27A-EN 13Installation6. Align the pipes and tighten the flare nuts manually and then with a spanner torque wrench, applying the torque accordin

14 VRF-SVX27A-ENInstallation3. Disconnect refrigerant cylinder. Connect dry nitrogen cylinder to high side charging port and increase pressure to 150

VRF-SVX27A-EN 15InstallationInstalling the Drain SystemInstall the drain hose as follows: 1. Push the supplied drain hose as far as possible over the

16 VRF-SVX27A-ENInstallation• The hose should not be allowed to hang loose from its connection to the unit. Fasten the hose to a wall, frame or other

VRF-SVX27A-EN 17Installation1. Operate the unit in cool mode.2. Remove drain pump cover.3. Squirt water into the drain pan (see figure).4. Confirm tha

18 VRF-SVX27A-ENInsulationInsulationAfter determining that there are no leaks in the refrigerant pipes or drainage hose, insulate them as described i

VRF-SVX27A-EN 19Wiring the UnitWiring the UnitObserve the following precautions when making electrical connections. • Make all electrical connections

© 2013 Trane All rights reserved VRF-SVX27A-ENIntroductionRead this manual thoroughly before operating or servicing this unit.Warnings, Cautions, a

20 VRF-SVX27A-ENWiring the UnitFigure 1. Wiring diagramFigure 2. Conduit bracket installation 1(L)2(N) F2F1 1(L)1(L)2(N)2(N)F1F1F2F2F4F3F3 F4208–

VRF-SVX27A-EN 21ConfigurationConfigurationAll VRF indoor units are factory configured. If modifications are required, one of the following control dev

22 VRF-SVX27A-ENConfigurationFigure 3. VRF Wireless Remote ControlMode buttonFan upTemp upTemp downFan downPower button2-digit segment

VRF-SVX27A-EN 23ConfigurationThe 2-Digit SegmentsEach 2-digit segment is differentiated from the others by a combination of operation mode and timer o

24 VRF-SVX27A-ENConfigurationMode 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 th

VRF-SVX27A-EN 25Configuration14 External control0: Disabled1: On/Off control2: Off-only control15 External control output0: Thermostat control1: User

26 VRF-SVX27A-ENConfigurationMode 5: Option SettingWhen digit 2 is set to a value of “5,” the options shown in Table 2 can be changed to the values i

VRF-SVX27A-EN 27ConfigurationFigure 6. Heat recovery unit operating in auto-changeover mode9Time required for mode changeNote: Applies only when digit

28 VRF-SVX27A-ENConfigurationMode A: AddressingWhen digit 2 is set to a value of “A,” unit address settings can be changed. See Figure 7, Figure 8, a

VRF-SVX27A-EN 29ConfigurationMode d: Specific Digit ChangingWhen digit 2 is set to a value of “d,” a single, specific digit can be changed. See Figure

Table of ContentsVRF-SVX27A-EN 3Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30 VRF-SVX27A-ENConfigurationFigure 10. Example of using the specific digit changing mode to change an option settingThe example in Figure 11 shows h

VRF-SVX27A-EN 31ConfigurationTable 4. Specific digit changing mode: Digit 2 = dDisplay screen (Mode and On/Off)DigitOption Set digit to...1 Factory se

32 VRF-SVX27A-ENOperationOperationFamiliarize yourself with the unit components and operating tips before operating the unit.ComponentsNote: Your uni

VRF-SVX27A-EN 33OperationInternal ProtectionsInternal protections operate if an internal fault occurs in the unit. Note: If the heat pump is operating

34 VRF-SVX27A-ENOperation2. Remove the air filter by lifting it upwards while pushing slightly and then pulling it forward. 3. Detach the grill by un

VRF-SVX27A-EN 35Operation(b)These operations must always be performed by qualified personnel. For more detailed information, see the installation manu

36 VRF-SVX27A-ENTroubleshootingTroubleshootingRefer to Table 6 for solutions to common problems and to Table 7 for a list of alarm conditions with co

VRF-SVX27A-EN 37TroubleshootingIf an error occurs, one of more of the LEDs on the display (see “Components” for their location) will flicker. As a pro

38 VRF-SVX27A-ENTroubleshootingCondenser mid-sensor is looseloose E241Off Off Flickering Flickering FlickeringRefrigerant leakage (2nd detection) E55

VRF-SVX27A-EN 39Warranty For Trane Advantage™ VRF Systems and Related AccessoriesWarranty For Trane Advantage™ VRF Systems and Related AccessoriesProd

4 VRF-SVX27A-ENOperating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Operating Mode f

The manufacturer optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in creating and sustainin

VRF-SVX27A-EN 5Model Number DescriptionDigit 1: RefrigerantDigit 2: Brand name Digit 3: System typeDigit 4: Configuration Type (also see separate t

6 VRF-SVX27A-ENPreparing for InstallationPreparing for InstallationAccessoriesIn addition to product literature, the following accessories are suppli

VRF-SVX27A-EN 7Preparing for InstallationUnit DimensionsUnit: inch (mm)40-3/16 (970)45-1/4 (1150): Ceiling openingDrain hole16-1/8 (410)19-11/16 (500)

8 VRF-SVX27A-ENPreparing for InstallationService Clearances59 (1500)59 (1500)59 (1500)59 (1500)

VRF-SVX27A-EN 9InstallationInstallationReview “Installation Considerations” before proceeding with installation.Follow the procedures in these section