Gree GMV-ND28TS/B-T Owner'S Manual Download Page 26

Multi Variable Air Conditioners Two-way Cassette Type Indoor Unit

 

22 

7.3 Maintenance after the Seasonal Use 

(1)  Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit. 
(2)  When the unit won’t be used for a long time, please cut off power supply for energy saving. The 

characters on the wired controller screen will disappear after cutting off the power supply. 

8 Table of Error Codes for Indoor Unit 

Error 

Code 

Content 

Error 

Code 

Content 

Error 

Code 

Content 

L0 

Indoor Unit Error 

LA 

Indoor Units Incompatibility 

Error 

d9 

Jumper Cap Error 

L1 

Indoor Fan 

Protection 

LH 

Low Air Quanlity Warning 

dA 

Indoor Unit Network Address 

Error 

L2 

E-heater Protection 

LC 

ODU-IDU Incompatibility Error 

dH 

Wired Controller PCB Error 

L3 

Water Full 
Protection 

Ld 

Protection for Indoor Fan (Fan 

2) 

dC 

Capacity DIP Switch Setting 

Error 

L4 

Wired Controller 

Power Supply Error 

d1 

Indoor Unit PCB Error 

dL 

Indoor Unit CO

2

 Sensor Error 

L5 

Freeze protection 

d3 

Ambient Temperature Sensor 

Error 

dE 

Capacity DIP Switch Setting 

Error 

L6 

Mode conflict 

d4 

Inlet Pipe Temperature Sensor 

Error 

db 

Special Code: Field 

Debugging Code 

L7 

No Master Indoor 

Unit Error 

d6 

Outlet Pipe Temperature 

Sensor Error 

C0 

Communication Error

 

L8 

Power Insufficiency 

Protection 

d7 

Humidity Sensor Error 

AJ 

Filter Cleaning Reminder 

L9 

Quantity Of Group 

Control Indoor Units 

Setting Error 

d8 

Water Temperature Sensor 

Error 

o0 

Other Drive Malfunction 

o1 

Low Bus bar 

Voltage of Indoor 

Unit 

o2 

High Bus bar Voltage of Indoor 

Unit 

o3 

IPM Module Protection of 

Indoor Unit 

o4 

Failure Startup of 

Indoor Unit 

o5 

Overcurrent Protection of 

Indoor Unit 

o6 

Current Detection Circuit 

Malfunction of Indoor Unit 

o7 

Desynchronizing 

Protection of Indoor 

Unit 

o8 

Communication Malfunction of 

Indoor Unit’s Drive 

o9 

Communication Malfunction of 

Main Mater of Indoor Unit 

oA 

High Temperature of 

Indoor Unit’s 

Module 

ob 

Malfunction of Temperature 

Sensor of Indoor Unit’s 

Module 

oC 

Charging Circuit Malfunction 

of Indoor Unit 

 
 
 
 
 
 

Summary of Contents for GMV-ND28TS/B-T

Page 1: ...uctions Commercial Air Conditioners Multi Variable Air Conditioners Two way Cassette Type Indoor Unit Models GMV ND28TS B T GMV ND36TS B T GMV ND45TS B T GMV ND50TS B T GMV ND56TS B T GMV ND63TS B T G...

Page 2: ...used for long cut off the power supply please energize and preheat the unit in advance before reusing it 3 Please properly select the model according to actual using environment otherwise it may impac...

Page 3: ...Notice This appliance can be used by children aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given s...

Page 4: ...ction 10 4 3 Drainage Pipe Installation and Drainage System Testing 11 4 4 Panel Installation 14 4 5 Installation of Wired Controller 16 5 Wiring Work 16 5 1 Connection of Wire and Patch Board Termina...

Page 5: ...he same refrigerant All units in Manual Cover is a partial unit complying with partial unit of IEC 60335 2 40 2018 and must only be connected to other units that have been confirmed as complying to co...

Page 6: ...damaged For units with wired controller do not connect power supply until the wired controller is well installed Otherwise the wired controller cannot be used When the installation is finished please...

Page 7: ...ing Cooling mode indoor temperature should not be set too low Keep the difference between indoor temp and outdoor temp within 5 If abnormal condition occurs e g unpleasant smell please turn off the un...

Page 8: ...y Cassette Type Indoor Unit 4 2 Product Introduction 2 1 Names of Key Components Fig 2 1 2 2 Three view drawing of product 2 2 1 Three view drawing of main body Fig 2 2 1 Unit mm Model A B C D E F GMV...

Page 9: ...p Wet Bulb Temp Rated Cooling 27 19 35 24 Rated Heating 20 15 7 6 3 Preparations for Installation NOTE this picture is for reference only please refer to the actual product the unit of dimension is mm...

Page 10: ...explosive gas or smog spread in the air 6 The appliance shall not be installed in the laundry 7 The indoor unit outdoor unit power cord and connection electricity wire should be at least 1m from tele...

Page 11: ...otal length of communication wire between indoor unit and wired controller m Wire diameter mm Wire standard Remark Light Ordinary polyvinyl chloride sheathed cord 60227 IEC 52 60227 IEC 53 L 250 2 0 7...

Page 12: ...re 3 4 Wiring Requirements Dimension of power cord and capacity of air switch Model Power Supply Air Switch Capacity A Minimum Sectional Area of Grounding Wire mm Minimum Sectional Area of Power Cord...

Page 13: ...t the M10 expansion bolt into the hole and then knock the nail into the bolt as shown in Fig 4 1 4 NOTE The length of bolt depends on the installation height of the unit bolts are field supplied Fig 4...

Page 14: ...he nut on it 7 Remove the paper pattern Fig 4 1 5 4 2 Refrigerant Pipe Connection 1 Aim the flaring port of copper pipe at the center of screwed joint and then tighten the flaring nut with hand as sho...

Page 15: ...f drainage pipe joint 6 Install drainage pipe according to the following Fig 4 3 1 and arrange insulation to the drainage pipe Improper installation may lead to water leakage and damp the furniture an...

Page 16: ...way as shown in following No 1 Three way connection of drainage pipe joints Fig 4 3 3 No 2 Connection of downspout elbow Fig 4 3 4 No 3 Inserting horizontal pipe connection Fig 4 3 5 Fig 4 3 3 Fig 4...

Page 17: ...lectric work is finished Inject approximately 1L purified water to drain pan from air vent ensure that not to splash the water over the electrical components e g water pump etc 1 In case of commission...

Page 18: ...ng decoration Unit mm Fig 4 3 9 4 4 Panel Installation 4 4 1 Notices for Installation 1 Improper decorative panel installation could cause the following problems Fig 4 4 1 2 Ensure that it s clearance...

Page 19: ...two side of panel and then fix the 2 screws in the middle of panel 4 Tighten the two J shape hooks in the accessories on the panel with screws please refer to Fig 4 4 6 5 Tighten the two L shape metal...

Page 20: ...of power supply must be sufficient and the sectional area of wires in the room should be above 2 5mm2 4 The unit should be powered by independent circuit and specific socket 5 The wiring should be in...

Page 21: ...1 1 1 Use a stripper to strip away about 25mm of the insulation layer at the end of single branch line so that the single core wire can be exposed 2 Remove the wiring screws on the terminal board 3 Sh...

Page 22: ...rwise the unit can t operate normally Fig 5 2 1 Detach the electric box lid 2 Let the power cord pass through the wiring through holes 3 Connect wires according to Fig 5 2 4 Fix the power cord with wi...

Page 23: ...1 and D2 as shown in Fig 5 3 2 5 4 Connection of Communication Wire for Wired Controller 1 Detach the electric box cover 2 Let the communication wire pass through the wiring through holes 3 Connect th...

Page 24: ...as master one and slave one 4 One wired controller can control 16 indoor units in maximum at the same time As shown in Fig 5 5 1 Fig 5 5 1 NOTES The type of indoor units must be the same if they are...

Page 25: ...nt the unit from losing color or deforming Do not dry the filters by fire or it may catch fire or become deformed Clean the filter with a wet cloth dipped in neutral detergent Please contact after sal...

Page 26: ...t PCB Error dL Indoor Unit CO2 Sensor Error L5 Freeze protection d3 Ambient Temperature Sensor Error dE Capacity DIP Switch Setting Error L6 Mode conflict d4 Inlet Pipe Temperature Sensor Error db Spe...

Page 27: ...temperature is higher than 43 Poor cooling effect The filter is dirty or blocked Too heavy heat load of room e g too many people Door or windows is open Inlet and outlet of IDU are blocked Setting te...

Page 28: ......

Reviews: