Hisense AVW-38UCSC Instruction Manual

Installation
&
Maintenance
Manual
INVERTER-DRIVEN
MULTI-SPLIT
(HEAT PUMP)
AIR CONDITIONER
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AVW-38UCSC
@ABCDEFFGAHIJDKA@
Model
AVW-48UCSC
AVW-54UCSC
1033068
P00415Q
ORIGINAL INSTRUCTIONS

Declaration of Conformity
(Manufacturer’s Declaration)
Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd.
218, Qianwangang Road, Economic & Technical Development Zone, Qingdao, P.R. China
declares under its sole responsibility that the air conditioning models to
which this declaration relates:
AVW-38UCSC, AVW-48UCSC, AVW-54UCSC
are in conformity with the following standard(s) or other normative document(s), provided that these
are used in accordance with our instructions:
EN 60335-1
EN 60335-2-40
EN 62233
EN 55014-1
EN 61000-3-2
EN 61000-3-3
EN 55014-2
following the provisions of: 2006/42/EC
2014/30/EU
2012/19/EU
2011/65/EU
Directives, as amended.
Manufacturing number and manufacturing year: refer to model Nameplate.
Notes:
This declaration becomes invalid, if technical or operational modifications are introduced
without the manufacturers consent.
Hisense Italia S.r.l. is authorised to Compile the Technical Construction File.
Ad. : Via Montefeltro 6A, 20156 Milano.
Name, Surname :
Position/ Title : Director
Date : April 15,2016

Install these air conditioners by local regulations or standards.
HISENSE
I
These air conditioners only are appliable of cooling or heating mode,do not operate cool and heat mode together,
if operate cool and heat mode at the same time,air conditioner system will be fluctuated for large difference in
temperature for changing operate mode.
NOTE:
2 3 W B
46 DB
30 DB
15.5 WB
15WB
-5 DB
15 DB
-20 WB
HISENSE
HISENSE
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.

SAFETY SUMMARY
!Use refrigerant R410A in the refrigerant cycle. Do not charge oxygen, acetylene
or other flammable and poisonous gases into the refrigerant cycle when performing a
leakage test or an air-tight test. These types of gases are extremely dangerous and
can cause an explosion. It is recommended that compressed air, nitrogen or
refrigerant be used for these types of tests.
!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 touch or adjust safety devices inside the indoor or outdoor units. If these
devices are touched or readjusted, it may cause a serious accident.
!Do not open the service cover or access panel for the indoor or outdoor units without
turning OFF the main power supply.
!Refrigerant leakage can cause difficulty with breathing due to insufficient air. Turn OFF
the main switch, extinguish any naked flames and contact your service contractor, if
refrigerant leakage occurs.
!The installer and system specialist shall secure safety against refrigerant leakage
according to local regulations or standards.
!Use an ELB (Electric Leakage Breaker). In the event of a fault, there is danger of an
electric shock or a fire if it is not used.
!Do not install the outdoor unit where there is a high level of oil mist, flammable gases,
salty air or harmful gases such as sulphur.
!Do not use any sprays such as insecticide, lacquer, hair spray or other flammable
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.
!Do not perform installation work, refrigerant piping work, 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 fire.
!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,
lightning conductor or ground wiring for telephone.
!Connect a fuse of specified capacity.
!Do not put any foreign material on the unit or inside the unit.
!Make sure that the outdoor unit is not covered with snow or ice, before operation.
!Before performing any brazing work, check to ensure that there is no flammable
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 fire.
!Fix the cables securely. External forces on the terminals could lead to a fire.
II

without HISENSE s consent in a written form.
HISENSE
,
s liabili y shall not cover defects arising from the alteration performed by a customer
III
Therefore, the utilization of the unit other than those indicated in these instructions is not
recommended.
SAFETY SUMMARY
!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
start-up after a long shutdown.
!Do not step or put any material on the product.
!Provide a strong and correct foundation so that;
a. The outdoor unit is not on an incline.
b. Abnormal sound does not occur.
c. The outdoor unit will not fall down due to a strong wind or earthquake.
Please contact your local agent, as the occasion arises.
The standard utilization of the unit shall be explained in these instructions.
Check the model number, electrical characteristics (power supply, voltage and frequency) and
accessories to determine if they are correct.
CHECKING PRODUCT RECEIVED
!Upon receiving this product, inspect it for any shipping damage.
Claims for damage, either apparent or concealed, should be filed immediately with the shipping
company.
!
!
!
!
!t
,
The appliance is not to be used by children or person with reduced physical, sensory
or mental capabilities,or lack of experience and knowledge,unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for
their safety.
Children should be supervised they do not play with the appliance.
l
l
NOTE:
It is recommended that the room 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 unit is installed in a low temperature region.
Operate the heat pump air conditioner within this range.
Regarding installation altitude below 1000m;
Regarding frequency of supply power within ±1%Hz of rated frequency;
Regarding transport / storage temperature within -25~55°C;
The A-weighted emission sound pressure level at workstations, all this
level does not exceed 70 dB(A) .

5.6 Vacuum Pumping and Charging Refrigerant....................................................................
6.2 Electrical Wiring Connection ...........................................................................................
9
5.2 Refrigerant Piping Work ...................................................................................................
4.3 Service Space .................................................................................................................6
4.4 Installation Work ..............................................................................................................6
4.2 Initial Check .....................................................................................................................5
8. Test Run....................................................................................................................................
7. Outdoor Unit Dip-Switch Setting................................................................................................
3.2 Transportation ..................................................................................................................4
1. Safety Summary.......................................................................................................................
1
2.1 Outdoor Unit & Refrigerant Cycle .....................................................................................
Safety and Control Device Setting............................................................................................27
9.
24
23
20
6.1 General Check ................................................................................................................
6. Electrical Wiring .........................................................................................................................
19
5.9 Collecting Refrigerant .......................................................................................................
18
5.8 Fill the charge Refrigerant Register List............................................................................
17
5.7 Caution of the Pressure by Check Joint ...........................................................................
15
14
5.5 Air Tight Test.....................................................................................................................
13
5.4 Piping Connection ...........................................................................................................
12
5.3 Branch Pipe .....................................................................................................................
5. Refrigerant Piping Work ...........................................................................................................8
5
4.1 Factory-Supplied Accessories .........................................................................................
..........5
2. Structure...................................................................................................................................1
3. Transportation and Handling ................................................................................................
3.1 Indoor Unit &Outdoor Unit Matching......................................................................................
....4
8
5.1 Piping Materials ................................................................................................................
4
2.2 Necessary Tools and Instrument List for Installation ........................................................3
IV
TABLE OF CONTENTS
4. Outdoor Unit Installation..................................................................................................
19
19
1
10.
Technical parameters................................................................................................................28
11. Product Fiche ...........................................................................................................................31

AVW-54UCSC
AVW-48UCSC
AVW-38UCSC
2. Structure
1. Safety Summary
1５４４８３８
Table 1.1 Line-Up of Outdoor Unit
Capacity(KBtu h)
／Model
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Base assembly
Air Inlet
Vibration Absorbing Rubber
Electrical Box
Crankcase Heater
Pressure Sensor
High Pressure Switch
Bypass Solenoid Valve
Stop Valve for Gas Line
Stop Valve for Liquid Line
Gas & Liquid Separator
Electrical Expansion Valve
Distributor
Check Joint for High/Low Pressure(Cool/Heat)
Reversing Valve
Check Valve
Strainer
Fan Motor
Propeller Fan
Heat Exchanger
Compressor
..
1
L N 1 2
Lot No.
Air Outlet

2
Check Joint
Capilary Tube
Individual Valve
Reversing Valve
Heat Exchanger
Compressor
Refrigerant Flow Direction(Heating Operation)
Outdoor Unit
Bypass
Flare Connection
Field Refrigerant Piping
Refrigerant Flow Direction(Cooling Operation)
Sensor
Condensator Temperature
Air Temperature Sensor
NO. Material
NO.
Strainer
Electrical Expansion Valve
Stop Valve for Gas Line
Stop Valve for Liquid Line
Bypass
High Pressure Protect
High Pressure
Low Pressure
Remark
Gas & Liquid Separator
Compressor
Heat Exchanger
Check Valve
Check Joint
Capilary Tube
Reversing Valve
Distributor
Solenoid Valve
Pressure Switch
Pressure Sensor
Pressure Sensor
Bypass
P
HPP
S
s s
s
a
b b b
a
cc
c
fd
d
e
ff
Liquid Line Refrigerant
Piping Connection
Gas Line Refrigerant
Piping Connection
17 Expansion Muffler
Discharge Temperature
Sensor