Hisense AVWT-76FESRA User manual

Hi-Flexi R Series Technical and Service Handbook TC1 2017007A
TC1 2017007ATC1 2017007A
Service Handbook
-Design-
-Installation-
-Service-
Technical and
AVWT-170~454FESZA
Inverter-Driven Multi-Split Central Air
Conditioning System
Hi-Efficiency R Series Outdoor Units
Models:
AVWT-76~96FESRA
AVWT-114~154FESSA
Specifications in this catalogue are subject to change without notice,in order that Hisense may bring the latest innovations to their customers.
Add: Hisense Information Industry Park 218,Qianwangang Road,
Qingdao Economic Development Zone,China
Tel:[phone] Fax:[phone]
Http: //www.hisensehitachi.com
E-mail: [email protected]
Qingdao Hisense Hitachi Air-conditioning Systems Co.,Ltd.

IMPORTANT NOTICE AND SAFETY PRECAUTIONS
This manual gives a common description and information for this heat pump air conditioner which you
operate as well for other models.
This air conditioner has been designed for operating within a specific range mentioned in section 1.6.
●Hisense pursues a policy of continuing improvement in design and performance of products.
The right is therefore reserved to vary specifications without notice
●Hisense cannot anticipate every possible circumstance that might involve a potential hazard.
●This heat pump air conditioner is designed for standard air conditioning only. Do not use this heat pump
air conditioner for other purpose such as drying clothes, refrigerating foods or for any other cooling or
heating process.
●Do not install the unit in the following places. It may cause a fire, deformation, corrosion or failure
* Places where oil (including machinery oil).
* Places where a lot of sulfide gas drifts such as in hot spring
*
Places where inflammable as may generate or flow.
* Places where strong salty wind blows such as coast regions.
* Places with an atmosphere of acidity or alkalinity.
●Do not install the unit in the place where silicon gas drifts. If the silicon gas attaches to the surface of heat
exchanger, the fin surface repels wate . As a result, drain water splashes outside of the drain pan and
splashed water runs inside of electrical box. In the end, water leakage or electrical devices failure may
occur.
●Pay attention to the following points when the unit is installed in a hospital or other facilities where
electromagnetic wave generates from medical equipment.
* Do not install the unit in the place where the electromagnetic wave is directly radiated to the electrical
box, remote control cable or remote control switch.
* Install the unit at least 3 meters away from electromagnetic wave such as a radio.
●Do not install the unit in the place where the breeze directly catches the animals and plants. It could
adversely affect the animals and plants.
●The installer and system specialist shall secure against leakage according to local regulations or
standards. The following standards may be applicable, if local regulations are not available.
International Organization for Standardization, ISO5149 or European Standard, EN378 or Japan Standard,
KHKS0010.
●No part of this manual may be reproduced without written permission.
●It is assumed that this heat pump air conditioner will be operated and serviced by English speaking people.
If this is not the case, the customer should be add safety, caution and operating signs in the native
language.
●If you have any questions, contact your distributor or dealer of Hisense.
●
●

SAFETY SUMMARY
< Signal Words >
●Signal words are used to identify levels of hazard seriousness.
Definitions for identifying hazard levels are provided below with their respective signal words
: DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
: WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
: CAUTION, used with the safety alert symbol, indicates a hazardous situation which,
if not avoided, could result in minor or moderate injury.
: NOTICE is used to address practices not related to personal injury.
: NOTE is useful information for operation and/or maintenance.
DANGER
WARNING
CAUTION
NOTICE
NOTE

SAFETY SUMMARY
●Do not perform installation work, refrigerant piping work, drain pump, drain piping and electrical wiring
connection without referring to our installation manual. If the instructions are not followed, it may result in
a water leakage, electric shock or a re.
●Use the specied non-ammable refrigerant (R410A) to the outdoor unit in the refrigerant cycle.
Do not charge material other than R410A into the unit such as hydrocarbon refrigerants (propane or etc.),
oxygen, ammable gases (acetylene or etc.) or poisonous gases when installing, maintaining and moving.
These ammables are extremely dangerous and may cause an explosion, a re, and injury.
●Do not pour water into the indoor or outdoor unit. These products are equipped with electrical parts.
If poured, it will cause a serious electrical shock.
●Do not open the service cover or access panel for the indoor or outdoor units without turning OFF the main
power supply.
●Do not touch or adjust safety devices inside the indoor unit or outdoor units. If these devices are touched
or readjusted, it may cause a serious accident.
●Refrigerant leakage can cause difculty with breathing due to insufcient air. Turn OFF the main switch,
extinguish any naked ames and contact your service contractor, if refrigerant leakage occurs.
●Make sure that the refrigerant leakage test should be performed.
Refrigerant (Fluorocarbon) for this unit is incombustible, non-toxic and odorless.
However if the refrigerant is leaked and is contacted with re, toxic gas will generate.
Also because the uorocarbon is heavier than air, the oor surface will be lled with it, which could cause
suffocation.
●The installer and system specialist shall secure safety against refrigerant leakage according to local
regulations or standards.
●Use an ELB (Earth Leakage Breaker).
In the event of fault, there is danger of an electric shock or a re if it is not used.
●Do not install the outdoor unit where there is high level of oil mist, ammable gases, salty air or harmful
gases such as sulfur.
●For installation, rmly connect the refrigerant pipe before the compressor starts operating.
For maintenance, relocation and disposal, remove the refrigerant pipe after the compressor stops.
●Do not perform a short-circuit of the protection device such as a pressure switch when operating.
It may cause a re and explosion.
DANGER

SAFETY SUMMARY
●Do not step or put any material on the product.
●Do not put any foreign material on the unit or inside the unit.
●Provide a strong and correct foundation so that;
a. The outdoor unit is not on an incline.
b. Abnormal sound dose not occur.
c. The outdoor unit will not fall down due to a strong wind or earthquake.
WARNING
CAUTION
●Do not use any sprays such as insecticide, lacquer, hair spray or other ammable gases within
approximately one (1) meter from the system.
●If circuit breaker or fuse is often activated, stop the system and contact your service contractor.
●Check that the ground wire is securely connected. If the unit is not correctly grounded, it lead electric
shock. Do not connect the ground wiring to gas piping, water piping, lighting conductor or ground wiring
for telephone.
●Connect a fuse of specied capacity.
●Before performing any brazing work, check to ensure that there is no ammable material around.
When using refrigerant be sure to wear leather gloves to prevent cold injuries.
●Protect the wires, electrical parts, etc. from rats or other small animals.
If not protected, rats may gnaw at unprotected parts and which may lead to a re.
●Fix the cables securely. External forces on the terminals could lead to a re.
●Provide a sufciently strong foundation. If not, the unit may fall down and it may lead to injuries.
●Do not install the unit in a place where oil, vapor, organic solvent and corrosive gas (ammonia, sulfur
compound and acid) may be present in quantities.
It may cause refrigerant leakage due to corrosion, electrical shock, deteriorated performance and
breakage.
●Perform electrical work according to Installation Manual and all the relevant regulation and standards.
If the instructions are not followed, an electrical shock and re may occur due to insufcient capacity and
inadequate performance.
●Use specied cables between units and choose the cables correctly. If not, an electrical shock or re may
occur.
●Ensure that the wiring terminals are tightened securely with the specied torques. If not, generating re or
electrical shock at the terminal connection part may occur.

˗Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 3 meters
from strong electromagnetic wave radiators such as medical equipment.
˗Supply electrical power to the system to energize the oil heater for 12 hours before startup after a long
shutdown.
˗Make sure that the outdoor unit is not covered with snow or ice, before operation.
˗In some cases, the packaged air conditioner may not be operated normally under the following cases.
* In case that electrical power for the packaged air conditioner is supplied from the same power
transformer as the device*.
* In case that the power source wires for the device* and the packaged air conditioner are located close to
each other.
Device*: (Ex) Lift, container crane, rectifier for electric railway, inverter power device, arc furnace,
electric furnace, large-sized induction motor and large-sized switch.
It consumes a large quantity of electrical power.
Regarding the cases mentioned above, surge voltage may be inducted in the power supply wiring for the
packaged air conditioner due to a rapid change in power consumption of the device and an activation of
switch.
Therefore, check the field regulations and standards before performing electrical work in order to protect
the power supply for the packaged air conditioner.
˗It is recommended that the room will be ventilated every 3 to 4 hours.
˗The heating capacity of the heat pump unit is decreased according to the outdoor air temperature.
Therefore, it is recommended that auxiliary heating equipment be used in the field when the units
is installed in a low temperature region.
NOTICE
NOTE
˗Regarding transport / storage temperature within -25~55°C.
˗Correct Disposal of this product.
This marking indicates that this product should not be disposed with other household wastes.
To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material resources. To return your used device, please use
the return and collection systems or contact the retailer where the product was purchased. They can take this
product for environmental safe recycling.
˗ All the operation method of remote control switch mention in this handbook is base on HYXE-J01H.
Turn to the operation manul accompanied with the remote control switch for detailed information of
other types.

- CONTENTS -
1. Connectable Outdoor Units and Working Range ......................................................... 1
1.1 Models of Outdoor Unit ............................................................................................ 1
1.2 Various Indoor Units and Combinations ................................................................... 2
1.3 Combination(Standard Type) .................................................................................... 3
1.4 Communication System ........................................................................................... 4
1.5 Piping System ........................................................................................................... 5
1.6 Operating Range ....................................................................................................... 5
2. General Data ................................................................................................................... 12
3. Dimensional Data ........................................................................................................... 19
3.1 Dimensional Data of Outdoor Unit ............................................................................ 19
3.2 Switch Box ................................................................................................................ 21
3.3 Structure ................................................................................................................... 28
4. Selection Data ................................................................................................................ 31
4.1 Service Space .......................................................................................................... 31
4.2 Capacity Characteristic Curve ................................................................................... 33
4.3 Capacity Table Under Different Temperature(KW) ................................................... 40
4.4 Capacity Table Under Different Temperature(KW) ................................................... 45
4.5 Capacity Correction Based On Refrigerant Piping Length ........................................ 51
4.6 Correction Factor According to Defrosting Operation .............................................. 53
4.7 Electrical Data ............................................................................................................ 54
4.8 Sound Data ................................................................................................................ 55
5. Component Data ........................................................................................................... 61
6. Control System ............................................................................................................... 65
6.1 Refrigerantion Cycle ................................................................................................. 65
6.2 Function Control Unit ............................................................................................... 68
6.3 Function Selection, Input & Output, Safety and Protective Devices ........................ 69
6.4 Standard Operating Procedure Chart ....................................................................... 81
7. Structure ......................................................................................................................... 92
7.1 Outdoor Unit & Refrigerant Cycle ............................................................................ 92
7.2 Necessary Tools and Instrument List for Installation ............................................... 92
8. Unit Transportation and Handing .................................................................................... 94
8.1 Transportation ......................................................................................................... 94
8.2 Hanging Method ....................................................................................................... 95
9. Outdoor Installation ........................................................................................................ 96
9.1 Factory-Supplied Accessories ................................................................................ 96
9.2 Installation ................................................................................................................ 97
9.3 Maintenance Space ................................................................................................... 97
9.4 Foundation ................................................................................................................ 98
9.5 Treatment of Condensed Water .............................................................................. 100
10. Refrigerant Piping Work ............................................................................................... 101

10.1 Piping Materials ...................................................................................................... 101
10.2 Flare and Connector .............................................................................................. 104
10.3 Caution about outdoor unit Installation ................................................................... 105
10.4 Piping Connection .................................................................................................. 107
11. Electrical wiring ............................................................................................................ 117
11.1 General Inspection ................................................................................................. 117
11.2 Wiring .................................................................................................................... 118
11.3 Electrical Wiring for Outdoor Unit ......................................................................... 120
11.4 Electrical Wiring Connection of Indoor Unit, Outdoor Unit and Switch Box .......... 122
12. Additional Refrigerant Charge ...................................................................................... 124
12.1 Air-Tight Test ......................................................................................................... 124
12.2 Vacuuming .............................................................................................................. 126
12.3 Additional Refrigerant Charge Calculation .............................................................. 127
12.4 Charging Work ........................................................................................................ 128
12.5 Automatic Simple Judgement System for Refrigerant Amount ............................ 129
12.6 Consideration ........................................................................................................ 130
13. Setting of DIP Switches ............................................................................................... 131
13.1 Function of RSW, DSWs and LEDs ....................................................................... 131
13.2 Function of RSW、DSW、LED .............................................................................. 133
13.3 Procedure of Checking Each Main Parts .............................................................. 134
13.4 Procedure of Checking Other Main Parts ............................................................. 135
13.5 Communication Settings ....................................................................................... 140
14. Test Run ....................................................................................................................... 141
14.1 Before Test Run ................................................................................................... 141
14.2 Test Run By Wired Controller ................................................................................ 142
14.3 Trial Operation via Outdoor Unit ............................................................................ 144
15. Check and troubleshooting .......................................................................................... 148
15.1 Overview of Inspection ......................................................................................... 148
15.2 Inspection Operations ........................................................................................... 151
15.3 Spot Inspection and Troubleshooting ................................................................... 152
15.4 Troubleshooting ..................................................................................................... 162
15.5 Trouble shooting in the detection mode ................................................................ 243
16. Appendix ...................................................................................................................... 260

1.1 Models of Outdoor Unit
Base Unit
Capacity (HP) Model 76 (8) Model 96 (10) Model 114 (12) Model 136 (14) Model 154 (16)
Models AVWT-76FESRA
Model 76~96
[Combined module]
Capacity (HP) Model 170 (18)Model 190(20)Model 212 (22)Model 232 (24)Model 250 (26)
Model AVWT-170FESZA AVWT-190FESZA AVWT-212FESZA AVWT-232FESZA AVWT-250FESZA
Comination
unit
AVWT-96* AVWT-114* AVWT-136* AVWT-114* AVWT-136*
AVWT-76* AVWT-76* AVWT-76* AVWT-114*AVWT-114*
-----
Capacity (HP) Model 272 (28)Model 290(30)Model 308 (32)Model 324 (34)Model 340 (36)
Model AVWT-272FESZA AVWT-290FESZA AVWT-308FESZA AVWT-324FESZA AVWT-340FESZA
AVWT-136* AVWT-154* AVWT-154* AVWT-136* AVWT-154*
AVWT-136* AVWT-136*AVWT-154* AVWT-96* AVWT-96*
---
Capacity (HP) Model 364 (38)Model 382 (40)Model 398 (42)
Model AVWT-364FESZA AVWT-382FESZA AVWT-398FESZA
AVWT-154* AVWT-154* AVWT-154*
AVWT-114* AVWT-136* AVWT-154*
AVWT-96* AVWT-96*
AVWT-96FESRA AVWT-114FESSA AVWT-136FESSA AVWT-154FESSA
Comination
unit
Comination
unit
Model 114 ~154
AVWT-96*AVWT-96*
AVWT-96*
Model 420 (44) Model 438 (46)
AVWT-420FESZA AVWT-438FESZA
AVWT-154* AVWT-154*
AVWT-154* AVWT-154*
AVWT-154* AVWT-136*
Model 454 (48)
AVWT-454FESZA
AVWT-154*
AVWT-154*
AVWT-154*
Capacity (HP)
Model
Comination
unit
1. Connectable Outdoor Units and Working Range
--- - -
1

(Note) Outdoor unit of Models 170~454 consists of 2~3 base units in the combination pattern as given in the table
above, and any combination pattern other than specified in the table is unacceptable.
Model 170 Model 190~212 Model 232~308
Model 324~340 Model 364~398
Model 420~454
1.2 Various Indoor Units and Combinations
The line-up of new Hi-Flexi R series indoor units has been extended up to 104 indoor units in 12 types to meet various
building requirements.
: Available
Indoor Unit Type Nominal Capacity (kBtu/h)
07 09 12 14 17 18 22 24 27 30 38 48 54 76 96
Ceiling Ducted Type (Low Static Pressure)
Low-Height Ceiling Ducted Type
4-Way Cassette Type
Wall-Mounted Type
Floor-Concealed Type
Ceiling and Floor Type
Slim Ceiling Ducted Type
Compact 4-Way Cassette Type
Ceiling Ducted Type (High Static Pressure)
1-Way Cassette Type
2-Way Cassette Type
Low-Height Ceiling Ducted Type (DC)
2