Table of Contents
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Installation, Operation,
and Maintenance
Variable Refrigerant Flow System
Mini 4-Way Cassette Indoor Unit Series
Models:
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing
of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and
training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags,
stickers, and labels that are attached to the equipment.
February 2017
4TVB0005B100NC
4TVB0007B100NC
4TVB0009B100NC
4TVB0012B100NC
4TVB0018B100NC
4TVB0020B100NC
SAFETY WARNING
VRF-SVX28D-EN
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Table of Contents
Related Manuals for Ingersoll-Rand 4TVB0005B100NC
Summary of Contents for Ingersoll-Rand 4TVB0005B100NC
- Page 1 Installation, Operation, and Maintenance Variable Refrigerant Flow System Mini 4-Way Cassette Indoor Unit Series Models: 4TVB0005B100NC 4TVB0007B100NC 4TVB0009B100NC 4TVB0012B100NC 4TVB0018B100NC 4TVB0020B100NC SAFETY WARNING Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
- Page 2 Introduction Warnings, Cautions, and Notices Safety advisories appear throughout this manual as required.Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions. The three types of advisories are defined as follows: Indicates a potentially hazardous situation which, if not avoided, could result in WARNING death or serious injury.
- Page 3 Introduction WARNING Personal Protective Equipment (PPE) Required! Failure to wear proper PPE for the job being undertaken could result in death or serious injury. Technicians, in order to protect themselves from potential electrical, mechanical, and chemical hazards, MUST follow precautions in this manual and on the tags, stickers, and labels, as well as the instructions below: •...
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Page 4: Table Of Contents
Table of Contents Model Number Description ..........6 Preparing for Installation . - Page 5 Maintenance ............33 Cleaning the Exterior .
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Page 6: Model Number Description
Model Number Description Digit 1: Refrigerant 4 = R410A Digit 2: Brand name T =Trane Digit 3: System type V = Variable Refrigerant Flow Digit 4: Configuration Type B = mini 4-way cassette Digit 5: Reserved for future use 0 = Not currently used Digit 6, 7, 8: Nominal capacity (Btu/h x 1,000) 005 = 5,000 Btu/h 007 = 7,500 Btu/h... -
Page 7: Preparing For Installation
Preparing for Installation Accessories In addition to product literature, the following accessories are supplied with this unit.The type and quantity may differ, depending on the model. Drain hose insulation Template Flexible hose Drain hose insulation wrap Conduit bracket Grommet Location Considerations When deciding on a location for the indoor unit, the following factors must be considered: •... -
Page 8: Unit Dimensions
Preparing for Installation Unit Dimensions Unit: inch (mm) 22 to 24-7/8 ceiling opening 26-3/8 19-3/4 suspension position 1-7/8 22-5/8 1-7/8 11-7/8 1-7/8 1-7/8 22-5/8 7-7/8 6-1/2 9-7/8 Sub duct connection 10-5/8 Net dimension 22-5/8 x 9 x 22-5/8 Net weight 24.46 lb Liquid pipe connection Gas pipe connection... -
Page 9: Service Clearances
Preparing for Installation Service Clearances 59 minimum Obstruction VRF-SVX28D-EN... -
Page 10: Installation
Installation Review “Installation Considerations” before proceeding with installation. Follow the procedures in these sections in the order given. Note: Install theY-joint before installing the indoor unit. Mounting the Unit If the ceiling is already constructed, piping must be laid into position before placing the unit inside the ceiling. -
Page 11: Purging The Unit
Installation 7. Tighten the nuts to suspend the unit following the guidelines in the figure below. Threaded rod should not protrude more than 1.2 in below the top of the bracket Washers, isolators, or spacers 8. Maintain proper spacing between the unit and the ceiling; refer to the following figure. Indoor unit 3/4 in. -
Page 12: Installing Refrigerant Piping
Installation Installing Refrigerant Piping Connect field-supplied piping using flared connections (not supplied) or by brazing.The large unit port is for gas refrigerant; the small one is for liquid refrigerant. Cut or extend field-supplied piping as needed. Use the following procedures. NOTICE System Failure! If brazing is used for pipe connections, a nitrogen purge is required to prevent the formation of... -
Page 13: Flared Pipe Connections
Installation Figure 1. Nitrogen flushing while brazing refrigerant pipes Nitrogen Stop valve Pressure regulator Flowmeter Flared Pipe Connections Clutch type and wing nut type flare tools are available for flared pipe connections. 1. Slide the flare nut over the pipe to be flared. 2. -
Page 14: Leak Testing Pipe Connections
Installation 4. Tighten the yoke securely to flare the end of the pipe. Yoke Flaring bar Copper pipe Flare nut 5. Remove the pipe.The end of the pipe that you flared should look like the end of a trumpet. See examples of correctly and incorrectly flared pipes. - Page 15 Installation WARNING Explosion Hazard! Never use an open flame to detect gas leaks. It could result in an explosion. Use a leak test solution for leak testing. Failure to follow recommended safe leak test procedures could result in death or serious injury or equipment or property-only-damage. Use only dry nitrogen with a pressure regulator for pressurizing unit.
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Page 16: Installing The Drain System
Installation Installing the Drain System 1. Push the supplied drain hose as far as possible over the drain hose port. • Do not apply excessive force to the piping on the unit side when connecting the drain hose. • Drain hose port locations differ depending on the unit type. Drain hose Drain hose port 2. - Page 17 Installation • Do not install the hose with an upward gradient after the connection port or leaks will result. • The hose should not be allowed to hang loose from its connection to the unit. Fasten the hose to a wall, frame or other support as close to the unit as possible. 3 ft, 3 in.–5 ft •...
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Page 18: Centralized Drainage
Centralized Drainage If the installation requires more than three indoor units, install the main air vent at the front of the indoor unit that is farthest from the main drain. It may be necessary to install individual air vents to prevent water flowing back to each indoor unit. See figure below. -
Page 19: Insulation
Insulation After determining that there are no leaks in the refrigerant pipes or drainage hose, insulate them as described in these sections. Insulating Refrigerant Pipes 1. Use the table below to select the insulation type for each pipe size. Insulation Type Standard conditions High humidity conditions (86°F [30°C], 85%) -
Page 20: Wiring The Unit
Wiring the Unit Wiring the Unit Observe the following precautions when making electrical connections. 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. - Page 21 Wiring the Unit Figure 2. Wiring diagram for individual control Outdoor unit F1 F2 208–230 V 1(L) 2(N) F3 F4 F3 F4 1(L) 2(N) 1(L) 2(N) Indoor unit 1 Indoor unit 2 Indoor unit 3 F3 F4 F3 F4 F3 F4 Wired Wired Wired...
- Page 22 Figure 4. Conduit bracket installation Push Click Single conduit Two conduits VRF-SVX28D-EN...
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Page 23: Configuration
Configuration Configuration All VRF indoor units are factory configured. If modifications are required, theTechnician Utilities Tool (TUT) is strongly recommended. However, any of the following devices can be used: • VRFTechnician UtilitiesTool (TUT) (instructions follow) • VRF Wireless Remote Control (instructions follow) •... -
Page 24: Using The Vrf Wireless Remote Control
Configuration Using the VRF Wireless Remote Control To change configurations of the VRF system using the VRF Wireless Remote Control, follow this procedure: 1. Remove the batteries from the remote control, and re-insert them while simultaneously pressing theTemp+ andTemp- buttons (refer to Figure The first 2-digit segment of a 24-digit sequence will appear on the wireless remote control display, as shown:... -
Page 25: The 2-Digit Segments
Configuration The 2-Digit Segments Each 2-digit segment is differentiated from the others by a combination of operation mode and timer on/off icons as shown in Figure Use digit 2 (shown in red in Figure 6) to set the wireless remote to Installation Option #1. Figure 6. -
Page 26: Installation Option #1
Configuration Installation Option #1 When digit 2 is set to a value of “2, ” the options shown in Table 1 can be set to the values in the right column. Table 1. Installation option #1: Digit 2 = 2 Display screen Digit... - Page 27 Configuration Table 1. Installation option #1: Digit 2 = 2 (continued) Display screen Digit (mode and On/Off) Option description Set digit to... 0: Default EEV position Adjusted EEV position of D11 D12 Thermo Off unit 1: Reduced EEV position Factory set to 2 Cannot be changed.
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Page 28: Installation Option #2
Configuration Table 1. Installation option #1: Digit 2 = 2 (continued) Display screen Digit (mode and On/Off) Option description Set digit to... Adjusted EEV position of 0: Default EEV position Thermo Off unit during oil 1: Reduced EEV position return/defrost mode 0: Disabled 1: Disabled in 30 minutes if no motion is detected 2: Disabled in 60 minutes if no motion is detected... - Page 29 Configuration Table 2. Installation option #2: Digit 2 = 5 Display screen Digit (mode and On/Off) Option description Set digit to... 0: 1.8°F (1°C) 1: 2.7°F (1.5°C) 2: 3.6°F (2°C) Standard for Auto Changeover (heating to cooling) 3: 4.5°F (2.5°C) Note: Applies only when digit 3 is set to “1”...
- Page 30 Table 2. Installation option #2: Digit 2 = 5 Display screen Digit (mode and On/Off) Option description Set digit to... Cooling: Fan Setting Heating: Fan Setting 0: Disabled Disabled 1: Disabled Enabled (Fan: User setting) 2: Disabled Enabled (Fan: High) 3: Disabled Enabled (Fan: Low) 4: Enabled (Fan: user setting) Disabled...
- Page 31 Configuration Figure 7. Heat recovery unit operating in Auto Changeover mode Standard temperature for Temp. Heating and Cooling Standard temperature for Cooling Set temperature for Auto mode Standard temperature for Heating A : Set with digit 4. Standard temp. B : Set with digit 5. for Cooling and Heating C : Set with digit 6.
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Page 32: Operation
Operation Operation Familiarize yourself with the unit components and operating tips before operating the unit. Components Air flow blade Air intake Air filter (under grille) Display Defrost indicator Filter reset indicator Power indicator Timer indicator Remote control sensor Note: Your unit and display may look slightly different from the illustration shown above, depending on your model. -
Page 33: Internal Protections
Maintenance Internal Protections Internal protections operate if an internal fault occurs in the unit. Type Description Cold air dump The internal fan will be off to prevent a cold air dump when the heat pump is in defrost mode. Defrost cycle The internal fan will be off to prevent a cold air dump when the heat pump is in defrost mode. -
Page 34: Cleaning The Grill And Air Filter
Cleaning the Grille and Air Filter 1. Pull the grille downward by using the tabs on the edge of the grille (see illustration).Two safety clips will prevent it from dropping. 2. Detach the grille by removing the two safety clip from the front panel. To clean only the filter, proceed to step 4. -
Page 35: Periodic Maintenance Checks
Error Codes Periodic Maintenance Checks Refer to the schedule given in Table 3 for proper unit maintenance. Note: 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 and then disconnect the power plug. Moisture left in the components can cause odors and internal damage. - Page 36 Table 4. Solutions to common problems Problem Solution Verify that Auto or Dry mode is selected. Either of these modes automatically The fan speed does not change. adjust the fan speed. Timer function does not work. Press the Power button on the remote control after setting the time. Odors permeate the room during Verify the origin of the odor.
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