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38GJQ
MULTI-ZONE DUCTLESS SYSTEM MATCHED WITH
40GRQ / 40GJB / 40GJC / 40GJD / 40GJF Indoor Units
Sizes 18, 24, 30, 36, 42, 48 and 56
NOTE: Read the entire instruction manual before starting the installation.
NOTE: Images are for illustration purposes only. Actual models
may differ slightly.
Installation Instructions
TABLE OF CONTENTS
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Table of Contents
Related Manuals for Carrier 38GJQ Series
Summary of Contents for Carrier 38GJQ Series
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Page 1: Table Of Contents
38GJQ MULTI-ZONE DUCTLESS SYSTEM MATCHED WITH 40GRQ / 40GJB / 40GJC / 40GJD / 40GJF Indoor Units Sizes 18, 24, 30, 36, 42, 48 and 56 Installation Instructions NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS . -
Page 2: Safety Considerations
SAFETY CONSIDERATIONS WARNING Installing, starting up, and servicing air−conditioning equipment can be hazardous due to system pressures, electrical components, ELECTRICAL SHOCK HAZARD and equipment location (roofs, elevated structures, etc.). Failure to follow this warning could result in personal Only trained, qualified installers and service mechanics should injury or death. -
Page 3: Part Lists
PART LISTS Table 1—Part List Outdoor Units Size Name No parts included Conversion Joint 3/8 to 1/2 Conversion Joint 3/8 to 5/8 Conversion Joint 3/8 to 1/2 30,36 Conversion Joint 1/4 to 3/8 Screw M4X12 Conversion Joint 3/8 to 5/8 Conversion Joint 3/8 to 1/2 Conversion Joint 1/4 to 3/8 Screw M4X12... - Page 4 PARTS LIST (CONT) Table 6—Part List Indoor Ducted Size Name Remote control Battery (1.5V) Screw M10X8 Screw M10 9,12,18 Gasket 10GB93 Pipe Connection Nut ("I" shape) Nut of Connector Pipe(B) Package Wired control Connection wire of wired control Remote control Battery (1.5V) Screw M10X8 Screw M10...
- Page 5 PARTS LIST (CONT) ■ Outdoor A150766 Fig. 1 - Parts List NOTE: − If the outdoor unit is higher than the indoor unit, prevent rain from flowing into the indoor unit along the connection pipe by making a downward arc in the connection pipe before it enters the wall to the indoor unit. This ensures that rain drips from the connection pipe before it enters the wall.
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Page 6: System Requirements
SYSTEM REQUIREMENTS Allow sufficient space for airflow and unit servicing. See Fig. 22 through 26 for the minimum required clearances. Piping IMPORTANT: Both refrigerant lines must be insulated separately. The minimum refrigerant line length between the indoor and outdoor units is 10 ft. (3m). See Table 11 for the maximum lengths. Table 11—Maximum Piping Lengths Outdoor Unit System Size... -
Page 7: Conversion Joints
CONVERSION JOINTS Some outdoor and indoor units include a package of conversion joints to facilitate the installation line sets as listed on the Parts List. These conversion joints are to be connected to the outdoor unit or the indoor unit side as needed to match the line set size listed in Tables 18 and 19 on the refrigerant piping section. REFRIGERANT PIPING Line sets should be sized based on Tables 18 and 19. - Page 8 REFRIGERANT PIPING (CONT.) Table 19—Liquid Line Outdoor Model Number 38GJQC18---3 38GJQD24---3 38GJQF30---3 38GJQG36---3 38GJQG42---3 38GJQK48---3 38GJQL56---3 Liquid Line Connection Outdoor Liquid Line Indoor Nominal Unit Indoor Model Line Line Line Line Line Line Line Connection Indoor Outdoor Indoor Outdoor Indoor Outdoor Indoor Outdoor...
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Page 9: Electrical Data
ELECTRICAL DATA Table 20—(40GRQ) High Wall SYSTEM VOLTAGE OPERATING VOLTAGE INDOOR FAN UNIT SIZE VOLT / PHASE / HZ MAX / MIN* 0.0268 208-230/1/60 253 / 187 0.0268 0.0268 Table 21—(40GJB) High Wall SYSTEM VOLTAGE OPERATING VOLTAGE INDOOR FAN UNIT SIZE VOLT / PHASE / HZ MAX / MIN* 0.17... -
Page 10: Wiring
WIRING All wires must be sized per NEC (National Electrical Code) or Communication Wiring: CEC (Canadian Electrical Code) and local codes. Use the Electrical A separate shielded copper conductor only, must be used as the Data table MCA (minimum circuit amps) and MOCP (maximum communication wire from the OUTDOOR UNIT to the over current protection) to correctly size the wires and the BRANCH BOX. -
Page 11: Dimensions − Indoor
DIMENSIONS − INDOOR Fig. 2 – 40GRQ High Wall Dimensions Table 26—40GRQ High Wall Dimensions OPERATING UNIT SIZE W In. (mm) D In. (mm) H In. (mm) Q In. (mm) WEIGHT Lbs. (kg) 37.8 (960) 8.07 (205) 12.6 (320) 2.16 (55) 33.07 (15) 37.8 (960) 8.07 (205) - Page 12 DIMENSIONS − INDOOR (CONT) Fig. 3 – 40GJB High Wall Dimensions Table 27—40GJB High Wall UNIT SIZE W In. (mm) D In (mm) H In. (mm) OPERATING WEIGHT 34.09 8.23 11.5 24.3 34.09 8.23 11.5 24.3 40.079 9.055 12.6 30.9 46.378 10.394 12.8...
- Page 13 DIMENSIONS − INDOOR (CONT) Fig. 4 – Size 12 and 18 Cassette Dimensions Table 28—Size 12 and 18 Cassette Dimensions SYSTEM SIZE Height (H) in (cm) 9.1 (23.1) 9.1 (23.1) Width (W) in (cm) 22.4 (56.9) 22.4 (56.9) Depth (D) in (cm) 22.4 (56.9) 22.4 (56.9)
- Page 14 DIMENSIONS − INDOOR (CONT) Fig. 5 – Size 24 Cassette Dimensions Table 29—Size 24 Cassette Dimensions SYSTEM SIZE Height (H) In (CM) 9.4 (23.9) Width (W) In (CM) 33.1 (84.1) Depth (D) In (CM) 33.1 (84.1) Weight-Net Lbs (Kgs) 61.7 (28)
- Page 15 DIMENSIONS − INDOOR (CONT) Fig. 6 – Ducted Dimensions Table 30—Ducted Dimensions ITEM MODEL 40GJQB09D--3 29 1/5 in 19 1/3 in 26 in 24 2/5 in 27 5/9 in 24 1/5 in 30 4/5 in 6 1/7 in 7 7/8 in 25 in (742 mm) (491 mm)
- Page 16 DIMENSIONS − INDOOR (CONT) 27.5in (700mm) 23.6in. (600mm) 7.87in. (200mm) 8.4 in. (215mm) Fig. 7 – Floor Console Dimensions...
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Page 17: Dimensions − Outdoor
DIMENSIONS − OUTDOOR 34.8 in. (883.92 mm) 12.3 in.(312.42 mm) Unit: in (mm) Unit: in (mm) Fig. 8 – Outdoor Dimensions Size 18 34.8 in. (883.92 mm) 12.3 in. (312.42 mm) Unit: in (mm) Unit: in (mm) Fig. 9 – Outdoor Dimensions Size 24... - Page 18 DIMENSIONS − OUTDOOR (CONT) 14.57 in. (370.11mm) 36.22 in. (920.04 mm) Unit: in (mm) Fig. 10 – Outdoor Dimensions Size 30 14.25 in. (361.95 mm) 40 in. (1016 mm) 42.5 in. (1079.5 mm) 17.33 in. (440.27 mm) 24.83 in. (630.77 mm) Unit: in.
- Page 19 DIMENSIONS − OUTDOOR (CONT) Fig. 12 – Outdoor Dimensions Size 48−56...
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Page 20: Dimensions − Branch Boxes
DIMENSIONS − BRANCH BOXES (REQUIRED ON SIZES 48 AND 56) Outline Dimension and Servicing Space of KSAUI0201AAA 17 2/7 in (439 mm) 15 in (383 mm) 2 1/3 in (60 mm) 7 1/7 in (105 mm) 14 1/5 in (361 mm) 5 in (128 mm) 5 in (128 mm) 3 4/7 in (91 mm) 3 1/7 in (80 mm) - Page 21 Outline Dimension and Servicing Space (KSAUI0401AAA) 17 2/7 in (439 mm) 15 in (383 mm) 2 1/3 in (60 mm) 7 1/7 in (105 mm) 14 1/5 in (361 mm) 5 in (128 mm) 1 4/5 in (35 mm) 2 3/4 in (70 mm) 2 3/4 in (70 mm) 5 in (128 mm) 2 3/4 in (70 mm)
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Page 22: Dimensions − Piping Adapters Included With Branch Boxes
DIMENSIONS − PIPING ADAPTERS (INCLUDED WITH BRANCH BOXES) .76 in.(19.3mm) L (Length) 6 in. 150mm 4.3 in. 110mm 2.75 in. 70mm .64 in. (16.1 mm) .59 in. (15mm) .51 in. (12.9 mm) 3.15 in. (80mm) Unit: in (mm) .38 in. (9.7 mm) Fig. -
Page 23: Dimensions − Y−Type Branch Tube Kit
DIMENSIONS − Y − TYPE BRANCH TUBE KIT KSAUI0501AAA (LIQUID AND GAS TUBES INCLUDED WITH THE KIT) 2.63 in. (67mm) 2.36 in (60mm) .51 in. (12.9mm) .26 in (6.5mm) .63 in. (16.1mm) .38 in (9.7mm) .38 in. (9.7mm) .62 in. (15.9mm) .26 in (6.5mm) .51 in. -
Page 24: Clearances
CLEARANCES − INDOOR CEILING 6" (0.15m) min. 5" 5" (0.13m) (0.13m) min. min. (1.8m) FLOOR Fig. 22 – High Wall Clearance Fig. 23 – Cassette Clearance... - Page 25 CLEARANCES − INDOOR (CONT) Fig. 24 – Ducted Clearance Fig. 25 – Floor Console Clearance...
- Page 26 CLEARANCES − OUTDOOR (CONT) Air-inlet Air-outlet Fig. 26 – Clearances Outdoor 18 − 42 Table 35—Clearances Outdoor UNIT MINIMUM VALUE in. (mm) 24 (609) 24 (609) 24 (609) 4 (101) 4 (101) Fig. 27 – Clearances Outdoor 48−56 NOTE: Outdoor unit must be mounted at least 2in. (50mm) above the maximum anticipated snow depth.
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Page 27: Installation Guide
INSTALLATION GUIDE Up to nine fan coil units can be connected to one outdoor unit. If piping is going through the back: Refer to the Product Data for approved combinations. Determine the pipe hole position using the mounting Ideal installation locations include: plate as a template. -
Page 28: Cassette Indoor Unit Installation
CASSETTE INDOOR UNIT INSTALLATION Installation stands for main body of the unit Ceiling 59 in (1500 mm) Above 4/6 in (20 mm) 59 in (1500 mm) Fig. 32 – Drilling holes NOTE: The dimension for the ceiling openings with * marks can be as large as 35 5/6 in. -
Page 29: Refrigerant Pipe Connection
Refrigerant Pipe Connection Instruction Connection of the Refrigerant Pipe The slant gradient of the attached drain hose should be within 3 in. (75 mm) so that the drain hole does not have to endure unnecessary When connecting the pipe to the unit, use both a spanner and a outside force. - Page 30 NOTE: (1.) Improper screwing of the screws may cause issues (see Fig. 43). Air leak Air leak from ceiling Water condensatation, water drop Fig. 43 – Example of Improper Screwing Issue Fig. 40 – Power cord (2.) If a gap still exists between the ceiling and decoration panel To indoor unit after tightening the screws, re−adjust the height of the indoor unit (see Fig.
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Page 31: Ducted Indoor Units Installation
DUCTED INDOOR UNITS INSTALLATION Requirements on the Installation Location CAUTION 1 Ensure the hanger is strong enough to withstand the weight of the unit. S Prior to the installation, prepare for all piping (refrigerant pipe, 2 The drainage pipe is easy for connection. drain pipe) and wiring (wires of the wired controller, wires 3 No obstacle is in the inlet/outlet and the air circulation is in between the indoor and outdoor unit) of the indoor unit to... - Page 32 Install the Round Air Supply Duct Table 39—Dimensions of the Air Supply Outlet and Return Air Inlet (unit: in/mm) ITEM AIR SUPPLY OUTLET RETURN AIR INLET Size 26 in 6 1/7 in 22 5/6 in 22 5/6 in (156 mm) (580 mm) (580 mm) (662 mm)
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Page 33: Drain Pipe Installation
Condensate Pipe Installation 1 The condensate pipe should maintain a inclination angle of 6 Wrap the clamps with a generous amount of sponge for 5” ~ 10”, to facilitate the drainage of the condensate water. thermal insulation. And the condensate pipe joints should be insulated by the 7 The drain hose inside the room also should be insulated. -
Page 34: Floor Console Indoor Units Installation
Securing the installation panel location FLOOR CONSOLE INDOOR UNITS INSTALLATION Follow these key steps when selecting a location for the unit. Select a place where cool air can be distributed throughout the room. Select a place where condensation water is easily drained away. -
Page 35: Drain Piping
Refrigerant Piping Boring a Wall Hole and Installing the Wall Embedded Pipe Use the following steps to connect the refrigerant pipe. 1 Drill a hole (2 1/6 in. (55mm) in diameter) in the spot For walls containing metal frame or metal board, be sure indicated by the symbol in the illustration (see Fig. - Page 36 Installing the Indoor Unit 1 Preparation For Side Piping Remove the pillars: Open the front panel, remove the 4 screws and dismount the front grille while pulling it forward. (1.) Remove the 7 screws 3 tabs (2.) Remove the upper casing (2 tabs) (3.) Remove the left and right casings (2 tabs on each side) (4.) Remove the slit portions on the bottom frame and casings Casing...
- Page 37 The mounting plate should be installed on a wall which can (3.) Once refrigerant piping and drain piping connections are support the weight of the indoor unit. complete, fill in the gap of the through hole with putty. A gap can lead to condensation on the refrigerant pipe, (1.) Temporarily secure the mounting plate to the wall, ensure and drain pipe, and the entry of insects into the pipes.
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Page 38: Outdoor Unit Installation
OUTDOOR UNIT INSTALLATION Install all Power and Interconnecting Wiring to the Outdoor Unit* 1 Use a rigid base to support the unit in a level position. 2 Locate the outdoor unit and connect the piping and wiring. Strong CAUTION CAUTION wind EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in equipment... - Page 39 Outdoor Unit Installation Sizes 48 and 56 For sizes 48 and 56, one outdoor unit can drive up to three Branch Box (BU) modules and nine different types of indoor units (high wall, cassette, ducted and floor console). At least one Branch Box (KSAUI0201AAA up to 2 indoor units or KSAUI0401AAA up to 3 indoor units) is required on these sizes.
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Page 40: Communication Sizes 48−56
COMMUNICATION SIZES 48−56 Detection of the quantity of installed indoor units and Branch Box (BU) modules: After 3 minutes of energizing, if the outdoor unit does not receive the communication data of a certain indoor unit, the outdoor unit determines the indoor unit is not installed and interacts with the unit accordingly. -
Page 41: Wiring Diagram Sizes 48−56
WIRING DIAGRAM SIZES 48−56 L2 S Outdoor unit L1 L2 L1 L2 POWER (Outdoor Unit) L2 S L2 S L2 S L2 S Outdoor unit BU module Outdoor unit BU module Outdoor unit BU module BU module BU module BU module L2 S L1 L2 S L1 L2 S L1... - Page 42 Connection Diagrams 18-42 Fig. 82 – Connection Diagram Sizes 18−42 48-56 Fig. 83 – Connection Diagram Sizes 48−56 Connection Diagram Fig. 84 – Connection Diagram Branch Box...
- Page 43 Install all Power, Interconnecting Wiring, and System Vacuum and Charge Piping to Indoor Unit. CAUTION 1 Run the interconnecting piping and wiring from the outdoor unit to each indoor unit (in matched pairs) (except sizes 48 and 56 refer to the Branch Box installation instructions). UNIT DAMAGE HAZARD 2 Pass the interconnecting cable through the hole in wall Failure to follow this caution may result in equipment...
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Page 44: Start−Up
Deep Vacuum Method START−UP The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of Test Operation accurately measuring this vacuum depth. The deep vacuum method Perform the test operation after completing the gas leak and is the most positive way of assuring a system is free of air and electrical safety check. -
Page 45: Troubleshooting
TROUBLESHOOTING This unit has on−board diagnostics. Error codes are displayed on the wired remote controller and the outdoor unit microprocessor board with colored LED lights. Table 42 explains the error codes on both. Sizes 18 and 24 Table 42—Malfunction Status Table NIXIE MALFUNCTION NAME MALFUNCTION TYPE... - Page 46 TROUBLESHOOTING (CONT) This unit has on−board diagnostics. Error codes are displayed on the wired remote controller and the outdoor unit microprocessor board with colored LED lights. Table 43 explains the error codes on both. Sizes 30, 36 and 42 Table 43—Malfunction Status Table THE INDICATOR DISPLAY INDOOR MALFUNCTION...
- Page 47 TROUBLESHOOTING (CONT) This unit has on−board diagnostics. Error codes are displayed on the wired remote controller and the outdoor unit microprocessor board with colored LED lights. Table 44 explains the error codes on both. SIZES 48 − 56 Table 44—Malfunction Status Table TESTING MAIN CONTROL DISPLAY FOR OUTDOOR UNIT INDOOR UNIT...
- Page 48 Flash 6 times b5+ indoor unit address Catalog No:38GJQ-02SI Copyright 2017 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Edition Date: 06/17 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.