Gree HLR45SNa-M, HLR25SNa-M, HLR35SNa-M, HLR22SNa-M Installation And Operation Manual
Installation and Operation Manual
Household (Townhouse) Central Air Conditioning Unit
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Please read this manual carefully before using this product and keep it properly for future reference.
User Notice
Dear Users:
Thank you for choosing our Household (Townhouse) Central Air Conditioning Unit. Please
read this manual carefully before installation, and conduct installation and usage by following the
process instructed in this manual, so that you can comprehensively know and correctly use this
unit.
Specially remind you the meaning of following label:
Warning! Means incorrect operation may cause injuries and deaths or badly hurt.
Notice! Means incorrect operation may cause injuries or property loss.
Warning!
When using this unit in winter, if outer ambient temp. is lower than 0℃, the temperature at
where indoor unit is installed should be approach to outdoor ambient temperature; or if there is no
people in the room for long-time, indoor temperature will approach to outer ambient temperature:
1) Add antifreeze in water system. Refer the actual outdoor ambient temperature for add
proportion.
2) To cooling only unit, when it is not used in winter, drain out water in the unit and pipe to
present pipe heat exchanger, pipeline and water pump from breaking; if it is not sure whether water
in pipeline is drained clearly, do add antifreeze into the system pipeline. And all of these must be
done by professional personnel.
3) Don’t cut off power when unit is off, otherwise auto antifreeze operation protection will be
ineffective.
Warning!
1) Please have the unit installed by authorized service center. For improper installation may
cause water leakage, electric shock and re etc.
2) Don’t use or store ammable and explosive products near the unit.
3) Please cut off power supply immediately when malfunction (such as burning odor is
smelled) occurs.
4) Don’t insert nger or things into exhaust vent or air-in grille.
5) Don’t turn on or cut off the unit by turn on or cut off the power supply.
6) Don’t ret the unit. Please contact with dealer or professional installation personnel when it
is going to repair or move the unit.
7) The appliance shall not be used for children without supervisor.
8) This product must not be disposed together with the domestic waste.This
product has to be disposed at an authorized place for recycling of electrical and
electronic appliances.
9) For appliances not accessible to the general public and which are
intended to permanently connected to xed wiring and which may have leakage
currents exceeding 10 the installation instructions shall specify the rating of the
residual current device (RCD) to installed.
10) This appliance is not intended for use by persons (including children) 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 that they do not play with the appliance.
Note!
1) Before installation, please check if the supply power is the same with that listed on
nameplate, and check the safety of power. Done by professionals.
2) Before using, please check and conrm if wires and water pipes are connected correctly
to present occurrence of water leakage, electric shock or re etc.Make sure it must be done by
professional of central air conditioning installation.
3) There must be earth wire at power supply to prevent electric shock. Don’t connect earth to
gas pipe, water pipe, lightning rod or connection wire of telephone.
4) Don’t operate the unit with wet hand, and don’t allow children to operate the unit.
5) The On/off in Owner’s Manual is for the operation to “on and off” button of control panel
for users; cut off power means to stop supplying power to the unit. Don’t directly expose the unit
under the corrosive ambient with water or dampness.
6) Don’t directly expose the unit under the corrosive ambient with water or dampness.
7) Do conduct electric leakage detect after installation by professional of central air
conditioning installation.
8) Operation conditions: Ambient outdoor temperature for heat pump operation must be from
-20℃ to 24℃; At the same time, Ambient outdoor temperature range for cooling operation must
be from 16℃ to 43
℃；
Furthermore, water temperature must be under 50
℃ .
In order to avoid
freezing the Tube-in-tube heater exchanger, water temperature must be beyond 5℃.
9) To be in compliance EN 61000-3-11,the product shall be connected only to a supply of
the system impedance:|Zsys|=0.391 ohms or less.Before connect the product to public power
network, please consult your local power supply authority to ensure the power network meet above
requirement.
10) Electric supply tolerances: (380-415V)±10%, (50±1)Hz.
11) Humidity range:30%-95%.
12) Installation altitude: max 1000m.
13) Transport/storage temperature range: -25
～
55℃. And for short period not exceeding 24h,
the temperature is up to 70
℃ .
14) Main switch provided by end user: main switch handle should be black or gray, it can be
locked in “OFF” position with padlock.
15) The main disconnection device should be installed at a height of 0.6～1.7m. Over current
protection is required(EN 60947-3,EN60947-2) .
16) An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in xed wiring .
Please contact with local dealer, authorized service center or office, our company if
malfunction occurs.
Contents
1. System Instruction ...................................................................................... 1
2. Product Specications ................................................................................. 1
3. Unit Introduction ....................................................................................... 2
3.1 Outline Sketch of Unit ............................................................................. 2
3.2 Outer Wiring Diagram of Unit ................................................................ 3
4. Operation Instructions of Controller ........................................................... 4
4.1 Display function on display board .......................................................... 4
4.2 LCD displaying panel ............................................................................. 4
4.3 Button function on display board ........................................................... 5
4.4 Buzzer ..................................................................................................... 5
4.5 Basic operation ....................................................................................... 6
4.6 Error Code List ....................................................................................... 8
5. Daily Operation and Maintenance .............................................................. 9
6. Common Malfunction and Solution ............................................................ 9
7. Terminal Facilities and Selection Guideline ............................................. 11
8. System Installation .................................................................................... 11
8.1 Unit Installation .................................................................................... 11
8.2 Installation of terminal facilities ........................................................... 12
8.3 Water Pipe Connection ......................................................................... 13
8.4 Anti-frozen Notice ................................................................................ 15
9. System Adjustment (it shall be done by professional) .............................. 16
9.1 discharge water to water system ........................................................... 16
9.2 Check Before Trial Run ........................................................................ 16
9.3 Trial Run .............................................................................................. 16
10. Usage Instruction for Accessories ........................................................... 17
10.1 Auto water ll valve ............................................................................ 17
10.2 Safety valve ......................................................................................... 17
10.3 Auto exhaust valve .............................................................................. 18
Household (Townhouse) Central Air Conditioning Unit
1
1. System Instruction
Combination Household (Townhouse) Central Air Conditioning Unit is a kind of small central air
conditioning unit usually installed in high-grade flats, combination buildings, high-grade townhouse, and
unitary office, restaurants, department stores, entertaining places and other places that have special air
conditioning requirements.
Working principle of Combination Household (Townhouse) Central Air Conditioning Unit: Firstly, the
unit produces cooled (or heated) water, after being press by water pump, this cooled (heated) water will be
transferred to every indoor fan coil by water pipe (or other terminal facilities), then through fan coil to conduct
heat exchange with indoor air circle and make indoor air temperature lower (or higher), thus, indoor air
conditioning can achieved. Meanwhile, fresh air unit can be installed in the system, lead certain quantity of
fresh air in and blow it into rooms after ltering or lowering (or heating up) temperature, then the indoor air
can still remain fresh and comfortable.
Combination Household (Townhouse) Central Air Conditioning System consists three parts: ①Household
(Townhouse) Central Air Conditioning Unit: There are 2 types of cooling only and heat pump. Outdoor units
are placed at outdoor balcony, roof or special at roof; and indoor units can be placed in washing room or
other indoor places. Outdoor and indoor units can also be piled together and places outdoors.
②
Terminal
facilities: It is usually fan coil, it is recommended to adopt horizontal type invisible fan coil under common
circumstance, for it can be easily combined with indoor decoration, and will always produce satisfying effect;
③
Water system: For connecting host and terminal fan coil and work for transferring cool and heat. It is
commonly made with galvanized pipe or seamless copper pipe, it can also adopt new type pipes such as PVC
pipes, PPR pipes, or aluminum-plastic pipe etc..
2. Product Specications
1) Humanized design, both split installation and whole installation are available.
2) Ultra-thin indoor unit design, height is only 288mm, convenient for hanging.
3) Adopting junction box heat exchanger, unit performance, antifreeze ability and reliability can be
enhanced greatly.
4) System realized trinity
A set of heat pump system can both cool and heat, it saves gas system, and also collocate with household
replace, water boiler or city heating net. Thus, cooling, heating, and water heating become trinity.
5) Large range of cool water and heat water supply
When cooling, supply range for cool water is 7
℃～15℃
; when heating, supply range for heat water is
35
℃～50℃
.
6) High reliability
Heat transfer media of this unit is water and with no distance limitation, only considering enough water
pump lift can realize long-distance heating and cooling.
7 ) Control function in subrooms
It is available to conduct on or off control to host in rooms, that is, when order of turning on from only
a single room, host on; when all rooms send unit off order, host off; general control spot can be set at living
room to conduct prior control to unit.
8) Easy operation
Adopting advanced total computer control system, main control system can conduct complete control to
the unit. Since it is very easy and quick to reset the operation, it can satisfy users’ requirements. With multi-
point control function, it is available to control on/off of host from several rooms, i.e. when order of unit on
from only a single room, host on; when all rooms send unit off order, host off; general control spot can be set
Household (Townhouse) Central Air Conditioning Unit
2
at living room to conduct prior control to unit.
9) Easy dialogue interface:
Host displays in English, and every operation data can be nd. When malfunction occur, unit will displays
error informational automatically, thus, repair and maintenance is very easy.
3. Unit Introduction
3.1 Outline Sketch of Unit
Outline Dimension of Outdoor Unit Outline dimension diagram of HLR22SNa-M 、HLR25SNa-M
Unit: mm
Diameter
12mm
water outlet
water
inlet
water-filled
valve
Basement
fixing hole
G1/2 "
544
530
1260
1460
1850
G1 "
G1 "
Outline dimension diagram of HLR35SNa-M 、HLR45SNa-M
Unit: mm
Water Inlet
Water Outlet
1290
1750
1760
710
800
G1-1/2
"
G1-1/2
"
Household (Townhouse) Central Air Conditioning Unit
3
3.2 Outer Wiring Diagram of Unit
Wiring Diagram of HLR22SNa-M 、HLR25SNa-M
：
X16
X17
PC
CONT ROLL ER
E
E
L1
XT1
11
XT2. 1、 XT2. 2
AUXI LIARY
ELECTRICAL
HEATER
HEAT
X1
X1
XN
term inal
switchboard
term inal unit1
termi nalu nitN
2
4
6
L2 L3 N
5
6
1
2
if the chiller is connected with fancoil units, please remove the wire between" 6 " on XT2 patching board
and X16 on PC , then connect X16 to X1 on fancoil unit patching board.
Wiring Diagram of HLR35SNa-M 、HLR45SNa-M
：
X16
X17
PC
CONTROLLER
E
E
L1 L2 L3 N
XT1
11 5
XT2.1、XT2.2
HEAT
2
4
6
10 11
X1
XN
X1
terminal
switchboard
unit1
unit N
AUXI LIARY
ELECTRIC AL
HEATER
if the chiller is connected with fancoil units, please remove the wire between" 6 " on XT2 patching board
and X16 on PC , then connect X16 to X1 on fancoil unit patching board.
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