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38GJt
Multi-zone Ductless Split System
Sizes 30 to 42
Owner' s Manual & Installation Instructions
NOTE: Read the entire instruction manual before starting the
installation.
Please read this Owner's Information Manual carefully before installing and using this appliance
and keep this manual for future reference.
For your convenience, please record the model and serial numbers of your new equipment in the
spaces provided. This information, along with the installation data and dealer contact information,
will be helpful should your system require maintenance or service.
UNIT INFORMATION
Model #
Serial #
INSTALLATION INFORMATION
Date Installed
SYSTEM REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Product Introduction . . . . . .
3 Preparation before Installation . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Piping Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Installation of the Connection Pipe . . . . . . . . . . . . . . . . .
the environmentally sound refrigerant
NOTE TO EQUIPMENT OWNER:
DEALERSHIP CONTACT INFORMATION
Company Name:
Address:
Phone Number:
Technician Name:
TABLE OF CONTENTS
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Table of Contents
Troubleshooting
Related Manuals for Carrier 38GJt
Summary of Contents for Carrier 38GJt
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Page 1: Table Of Contents
38GJt Multi-zone Ductless Split System Sizes 30 to 42 Owner' s Manual & Installation Instructions TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS ...... -
Page 2: Safety Considerations
SAFETY CONSIDERATIONS CAUTION Installing, starting up, and servicing air- -conditioning equipment can be hazardous due to system pressures, electrical components, EQUIPMENT DAMAGE HAZARD and equipment location (roofs, elevated structures, etc.). Failure to follow this caution may result in equipment Only trained, qualified installers and service mechanics should damage or improper operation. -
Page 3: Preface
Preface Please carefully read the instructions in this manual before installation and operation. (1) This unit measures on the base of UL1995. (2) Multi-zone air conditioning units confirm to design standard: AHRI 210240-2008. (3) For personal safety, please follow the instructions provided in this manual. (4) The total capacity of the indoor units , which run at the same time, can not exceed that of the outdoor units;... -
Page 4: Product Introduction
2 Product Introduction The 38GJ system adopts inverter compressor technology. According to change displacement of compressor, stepless capacity regulation within range of 15%~120% can be realized. V arious product lineup is provided with capacity range from 30KBtu to 42KBtu, which can be widely used in a boarding house , a working area and especially applicable in a location with a variable load change. -
Page 5: Combinations For Outdoor And Indoor Units
2.2 Combinations for outdoor and indoor units High Wall High Wall Floor Console Duct Type Cassettle Type Indoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit Fig 2 See Fig.2 for combinations for outdoor and indoor units. For the GJ series air conditioning system, one outdoor unit is able to drive up to five indoor units which can be cassette type, duct type, high wall or floor console type. -
Page 6: Rated Working Condition
2.3 Rated working condition Table 2 Indoor side state Outdoor side state Dry buib temp. Wet buib temp. Dry buib temp. Wet buib temp. Rating cooling 80.06 66.92 75.02 Rating Heating 69.98 60.08 49.99 43.00 NOTICE 1) The following listed cooling /heating capacity and noise is tested before shipping. 2) The parameters below are tested under a rated working condition. -
Page 7: Preparation Before Installation
Table 4 Outdoor Unit Parts Name Picture Number Quantity Remark 38GJt Multi-zone Ductless Split System Sizes 30 to 42 Owner' s Manual & Installation Instructions TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS ...... -
Page 8: Piping Connection
3.3 Piping Connection The maximum pipe length is shown in the following table. When the distance between units (piping length) is out of the range listed below, normal operation of the unit can not be guaranteed. Table 5 Connecting Pipe (inch) Max. -
Page 9: Installation
4 Installation 4.1 Outline and dimension of the outdoor unit 3 8 G J Q F 3 0 - - - 3 Outline dimension and mounting holes 14 4/7 36 2/9 38 3/7 17 1/3 Unit:inch Fig 4 38GJQG36---3 38GJQG36---3, 38GJQG42---3 Outline dimension and mounting holes 14 4/7... -
Page 10: Installation Of The Connection Pipe
4.2 Installation of the Connection Pipe Connecting piping for the indoor unit and outdoor unit are in the manifold mode (see the figure below). Fig 6 4.2.1 Piping between the Indoor and Outdoor Units (1) If the liquid and gas stop valves, which have the sign A , B, C, D or E , have not been connected to the indoor units, turn off the screw cap with the spanner airproof. - Page 11 Allowable Length and Height for the Refrigerant Pipe Table 7 Allowable V alue 38GJQG36---3 Fitting Pipe 38GJQF30---3 38GJQG42---3 Total length (actual length) of fitting 229.6ft 246.1ft +…+L pipe Length of farthest fitting pipe (ft) 82ft 82ft X=1 2 3 4,5 Outdoor unit at Height difference 49.2ft...
- Page 12 4.2.3 Oil Trap Design Requirements If the height difference between the indoor unit and the outdoor unit exceeds 19.7ft (6m), install an oil trap every 19.7ft (6m) from the lower to the upper section of the vertical gas pipe. The oil trap shall be fabricated into two U-type elbows or one return-type elbow.
- Page 13 The outdoor unit is higher than the indoor unit. Stop elbow Outdoor unit Gas pipe 19.7ft (6m) Liquid pipe 19.7ft (6m) 19.7ft (6m) Oil trap 19.7ft (6m) 19.7ft (6m) Oil return trap Indoor unit 4.2.4 Installation of the Refrigerant Pipe Protection Layer The refrigerant refrigerant pipe should be insulated by the insulating material and plastic tape to prevent condensation and water leakage.
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Page 14: Air Purgingand Refrigerant Charge
After the pipe is protected, do not bend it to form a small angle; otherwise it will crack or break. (3)Wrap the Pipe with Tape a. Bundle the refrigerant pipe and electric wire together with tape, and separate them from the drain pipe to prevent the condensate water from overflowing. -
Page 15: Electric Wiring
(2) Calculation of the Additional Refrigerant Charge Additional Refrigerant Charge= Length of Liquid Pipe 0.375×54+ Length of Liquid Pipe 0.25×22)-880 The largest additional refrigerant charge value is 800g.This means if the calculated value exceeds 800g, the additional refrigerant charge takes 800g, while the calculated value takes less than 800g, the additional refrigerant charge takes the calculated value. - Page 16 38GJQG36---3 38GJQG42---3 OUTDOOR UNIT INDOOR UNIT A INDOOR UNIT B INDOOR UNIT D INDOOR UNIT E INDOOR UNIT C Fig 12 4.4.2 Grounding Requirements (1) The air conditioner is classified as a Class I appliance, so its grounding must be reliable. (2) The yellow-green line of the air conditioner is the earth line and can not be used for any other purpose, cut off or fixed by the tapping screw;...
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Page 17: Troubleshooting
5 Troubleshooting 1) In the event of abnormal conditions (for example, a foul smell), shut off the main power supply immediately and contact your Service Center.Operating under abnormal conditions would damage the air conditioning unit and would cause electric shock or a fire hazard. 2) Do not attempt to repair the air conditioning.Contact a professionally skilled technician at the appointed service center. -
Page 18: The Conditions Listed Below Are Not Classified Into Errors
6 The conditions listed below are not classified into errors. Table 10 Conditions Causes When restarted immediately after it The overload protection switch of the unit was stopped. delays the startup for three minutes. The unit does not run The unit remains in stand by mode for As soon as power is on. - Page 19 running next operation Mode conflict COOL or HEAT mode can not When the indoor operating mode conflicts with that of outdoor unit, the indoor fault indicator flashes and the be operated conflict appears on the wired controller after 5 minutes. The indoor unit stops.
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Page 20: Troubleshooting
7 Troubleshooting The error code displays on the wired controller and the main board of the outdoor unit Table 12 details the meaning of each error. Table 12 The indicator display Malfunction Yellow light Red light Green light Compressor runs Flash once Defrost Flash twice... -
Page 21: Maintenance
8 Maintenance A regular inspection, maintenance and care should be performed by professional personnel, which will prolong the unit's life span. 8.1 Outdoor heat exchanger The outdoor heat exchanger should be cleaned once every two months. Use a vacuum cleaner with a nylon brush to clean up dust and small particles on the surface of the heat exchanger. - Page 24 Catalog No: 38GJ-30-42-01OM Copyright 2014 Carrier CorporationS 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 11 /14 Replaces: New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.