Gree FP-51XD/A-K User manual

USER MANUAL
[ FCU CASSETTE UNITS ]
FP-XXXD/A-K, FP-XXXXD/B-T
FP-XXXXD/D-K, FP-XXXXDT/B-K
EN ORIGINAL INSTRUCTIONS, VER. 01 2020-12-11

IMPORTANT NOTE:
Read this manual carefully before installing or operating your new air conditioning unit.
Make sure to save this manual for future reference.

To Users
Thank you for selecting Gree’s product. Please read this instruction manual carefully before installing
and using the product, so as to master and correctly use the product. In order to guide you to correctly
install and use our product and achieve expected operating effect, we hereby instruct as below:
(1) This equipment should be installed, operated or maintained by the qualied servicemen who have had
specic training. During operation, all safety issues covered in the labels, User’s Manual and other
literature should be followed strictly. This equipment 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
responsibility for their safety. Children should be supervised to ensure that they do not play with the
appliance.
(2) This product has gone through strict inspection and operational test before leaving the factory. In order
to avoid damage due to improper disassembly and inspection, which may impact the normal operation
of unit, please do not disassemble the unit by yourself. You can contact with the special maintenance
center of our company if necessary.
(3) For personal injury or property loss and damage caused by improper operation such as improper
installation and debugging, unnecessary maintenance, violation of related national laws and rules and
industrial standard, and violation of this instruction manual, etc., we will bear no liability.
(4) When the product is faulted and cannot be operated, please contact with our maintenance center as
soon as possible by providing the following information.
yContents of nameplate of product (model, cooling/heating capacity, product No., ex-factory date).
yMalfunction status (specify the situations before and after the error occurs).
(5) All the illustrations and information in the instruction manual are only for reference. In order to make
the product better, we will continuously conduct improvement and innovation. We have the right to
make necessary revision to the product from time to time due to the reason of sales or production, and
reserve the right to revise the contents without further notice.
(6) The nal right to interpret for this instruction manual belongs to Gree Electric Appliances Inc. of Zhuhai.

Contents
Safety Notices (Please be sure to abide ) .............................................................. 1
1 Product Introduction............................................................................................. 5
1.1 Working Principle.............................................................................................................. 5
1.2 Main Parts ........................................................................................................................ 5
1.3 Working Conditions .......................................................................................................... 6
2 Unit Installation...................................................................................................... 6
2.1 Installation Environment ................................................................................................... 6
2.2 Precautions for Installation ............................................................................................... 6
2.3 Outline Dimensions .......................................................................................................... 8
2.4 Installation and Maintenance Space ................................................................................ 8
2.5 Installation of the Front Panel........................................................................................... 9
2.6 Installation of Inlet and Outlet Pipes............................................................................... 10
2.7 Installation of the Drain Pipe .......................................................................................... 10
2.8 Installation of the Water Valve ........................................................................................ 12
2.9 Electric Wiring ................................................................................................................ 13
3 Commissioning and Maintenance ..................................................................... 17
3.1 Inspection after Installation............................................................................................. 17
3.2 Trial Run ......................................................................................................................... 17
4 Troubleshooting .................................................................................................. 20

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Safety Notices (Please be sure to abide )
WARNING: If not abide strictly, it may cause severe damage to the unit or the people.
NOTE: If not abide strictly, it may cause slight or medium damage to the unit or the people.
This sign indicates that the operation must be prohibited. Improper operation may cause severe
damage or death to people.
This sign indicates that the items must be observed. Improper operation may cause damage to
people or property.
WARNING
Please perform installation in
accordance with this manual
and read it carefully prior to
startup and service.
Installation should be done
by sales agents or qualified
servicemen. Do not do it
personally, as incorrect
installation would lead to water
leakage, electrocution, fire
hazards etc.
Before installation, check
for power supply and see if
it complies with that on the
nameplate. Besides, check for
safety of the power supply.
This unit should be grounded
and there should be grounding
lines for the power socket so
as to prevent electrocution. Do
not connect the grounding lines
to the gas lines, water lines,
lightning rod or telephone
lines.
Specialized
Fittings
Specialized components
and parts should be used
for installation; otherwise it
would lead to water leakage,
electrocution, re hazards etc.
Specialized
Size of the power lines should
be large enough. Power lines
and other electric connection
lines should be replaced by
specialized cables.
When wiring of power lines is
nished, remember to install a
electric box to prevent safety
accidents.
When installation is finished,
check for connection of drain
lines, water lines and electric
lines, as incorrect connection
would lead to water leakage,
electrocution, re hazards etc.
Do not start or stop the unit by
drawing out or plugging in the
power plug.
Do not let the children play
with this unit.
Do not operate this unit with
wet hands.
Do not clean this unit until the
unit is turn off and the power
supply is cut off, otherwise it
would lead to electrocution or
personal injury.

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Do not spray or rinse this unit
with water, as it would lead to
malfunction or electrocution.
Do not let this unit exposed
to moist, wet or corrosive
environment.
Volatile liquid like thinner or
petroleum would damage
appearance of this unit. (Only
soft dry cloth and cloth with
neutral detergent can be used
to clean the outer casing of
this unit.)
Do not make the set point too
low under the cooling mode.
Entering and leaving water
lines, condensate lines and
valves should be thermal
insulated so as to prevent from
dewing in summer.
Do not repair this unit by
yourself, as incorrect repair
would lead to electrocution or
fire hazards. Please contact
GREE after-sales center and
repair should be done by the
qualied servicemen.
Never splice the power cord or
use an extended cord.
It can cause overheating or
re.
Don’t insert your hands or stick
into the air intake or outlet
vents.
Don't block the air intake
of the FCU.It can decrease
the FCU capacity or cause a
malfunction.
Keep combustilble spray away
from the units more than 1.5m.
It can cause a re or explosion.

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NOTE
During operation, do not insert
fingers or other objects into
the moving parts, which would
lead to unnecessary injuries.
Please cut off the power supply
when this unit is not used for
long time in consideration of
safety.
When there is something
unusual (like unusual smell,
burning smell, smoke etc.),
please turn off the unit and cut
off the main power supply at
once, and then contact GREE
after-sales servicemen. If
unusual conditions go on, this
unit would burn out, or even it
would lead to electrocution or
re hazards.
Wiring of power lines and
electric connection lines should
be secure enough. Terminals
also should be tightly fastened.
The connection line should
not suffer external forces. For
the unit equipped with the
wired controller, the controller
would be powered on firstly;
otherwise it would be out of
normal use.
The filter should be cleaned
periodically in case that heat
exchanging effect would be
affected.
Please do freeze protection in
winter to prevent copper tubes
from cracking.
Don’ t leave windows and
doors open for a long time
while operating the FCU. It can
decrease the FCU capacity.
Don’t blow the wind to animals
and plants directly. It can
cause a bad inuence to them.
Don’t use the FCU for other
purposes, such as drying
clothes, preserving foods, etc.
Don’t place a space heater
near the FCU.

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This appliance is intended to be used by expert or trained users in shops, in light industry and on farms,
or for commercial or household use by lay persons.
Installing the unit in the following places may cause malfunction. If it is unavoidable,please consult the
local dealer:
(1) The place with strong heat sources,vapors, ammable or explosive gas,or volatile objects spread in the
air.
(2) The place with high-frequency devices (such as welding machine,medical equipment).
(3) The place near coast area.
(4) The place with oil or fumes in the air.
(5) The place with sulfureted gas.
(6) Other places with special circumstances.
(7) Do not use the unit in the immediate surroundings of a laundry, a bath, a shower or a swimming pool.
DISPOSAL: This marking indicates that this product should not be disposed with other
household wastes throughout the EU. 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.
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 supervision or instruction concerning
use of the appliance in a safe way and understand the
hazards involved.Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children without supervision.

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1 Product Introduction
1.1 Working Principle
The cold (hot) water entering the heat exchanger will do heat exchanging with air passing through the
surface of the heat exchanger to condition the air temperature and humidity. There is no (cold) hot source
for this product itself. The running mode depends on the environment temperature and the running mode
of the main unit.
Protection against hot air
Under the cooling mode, when the water temperature is too high, the fan will be stopped to avoid the
unit from blowing out hot air.
Protection against cold air
Under the heating mode, when the water temperature is too low, the fan will be stopped to avoid the unit
from blowing out cold air.
Memory function
Upon power failure, some statuses can be memorized, including: mode setting, fan speed setting, fan
swing setting, temperature setting etc.
1.2 Main Parts
Remote controller
Air deflector
(inside the outlet)
Grill
Air filter
(inside the grille)
Air outlet
Connection pipe
Water pipe
Drainage (built-in): water
draining for cooling from
the indoor unit.
Double-cut grill
Chequered grill
Front panel
Front panel
TB03(Double-cut grill) TB03(Chequered grill)

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1.3 Working Conditions
(1) The entering water temperature for cooling is suggested to be no less than 5℃,otherwise it would lead
to condensate; the entering water temperature for heating is suggested to be not higher than 60 ℃,
otherwise it would lead to corrosion of copper tubes or abnormal noise.
(2) The suggested working environment temperature for cooling ranges 16 ～40℃and ranges 10 ～35℃
for heating. Besides, the relative humidity is or less than 80%.
(3) This product is a kind of comfort air conditioning, and is not allowed to be installed where there are
corrosive, explosive and inammable substances or smog; otherwise it would lead to operation failure,
shortened service life, ve hazard or even severe injuries. Special air conditions are required for where
mentioned above.
(4) The following conditions are applicable to products used in EU countries. For other areas, please refer
to the local executive standards.
yRated cooling conditions: 27°C dry bulb temperature, 19°C wet bulb temperature, 7°C entering water
temperature, 12°C leaving water temperature.
yRated heating conditions: 20°C dry bulb temperature, 15°C wet bulb temperature, 45°C entering
water temperature, even cold water ow.
yDewing condition: 27°C dry bulb temperature, 24°C wet bulb temperature, 6°C entering water
temperature, and 9°C leaving water temperature.
2 Unit Installation
2.1 Installation Environment
(1) There should be no direct sunlight.
(2) The hanger, ceiling and the building structure should be capable of supporting the weight of the unit.
(3) The drain pipe can be easily led out.
(4) The inlet and outlet air ow will not be blocked.
(5) There should be no inammable and explosive substances.
(6) There should be no corrosive gas, heavy dust, salt fog, smog or moisture.
2.2 Precautions for Installation
(1) Hole Drilling and Bolt Installation
yFirstly, place the cardboard template at the installation location and drill four holes as per the hole
site at the cardboard template. The hole depth should be 60~70mm.
Installation hole
Cardboard template
Drilling hole diameter
yPut the M10 anchor bolt into the hole and then hammer the iron nail into the bolt. Length of the
anchor bolt depends on the height of the room. The anchor bolts should be prepared by the user
themselves.

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Anchor bolt
(2) Put the hoisting stand to the hanger bolt. Nuts and washers should be used at both the lower and
upper ends of the hoisting stand so as to secure the locating board and prevent the washers from
falling out.
(3) The sizing of the ceiling opening depends on the template cardboard. The center of the ceiling opening
is labeled at the template cardboard. Use three screws to x the template cardboard to the unit and
also use other screws to x the corners of the drain channel.
(4) Adjust the unit rightly to the installation location.
(5) See if the unit is horizontal or not by checking the four corners one by one with a water level. The drain
pump and oat valve are built inside the unit. When the unit is inclined towards the opposite direction
of the condensate ow, the oat switch may fail to work normally and even lead to water drops.
(6) Remove the locating plate for the washer and tighten the screw above it.
(7) Remove the cardboard template.
Water level
PVC pipe Screw (attached)
Tighten two screws
Hoisting hanger
Center of the ceiling
opening
Washer (attached)
Screw (supplied on site)
Screw (attached)
Template cardboard (attached)
(Tighten the template cardboard)
(tighten the washer)
Insert
Locating plate
Fix one corner of the drain channel with the screw.
(tighten the hoisting hanger)

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2.3 Outline Dimensions
C (Indoor unit)
E (Bolts spacing)
B (Ceiling opening)
A (Decarative front panel)
C (Indoor unit)
D (Bolts spacing)
B (Ceiling opening)
A (Decarative front panel）
More than 20mm
F
Models A
(mm)
B
(mm)
C
(mm)
D
(mm)
E
(mm)
F
(mm)
Size of
Condensate
Pipe
(mm)
Size of Inlet/
Outlet Pipe
(mm)
FP-51XD/A-K
FP-68XD/A-K 670 596 592 570 570 240 Φ26x3 G3/4
FP-85XD/B-T
FP-102XD/B-T 950 890 840 680 780 190 Φ26x3 G3/4
FP-125XD/B-T
FP-140XD/B-T
FP-160XD/B-T
950 890 840 680 780 240 Φ26x3 G3/4
FP-180XD/B-T
FP-200XD/B-T
FP-200XD/D-K
950 890 840 680 780 320 Φ26x3 G3/4
FP-68XDT/B-K
FP-85XDT/B-K 950 890 840 680 780 190 Φ26x3 G3/4
FP-125XDT/
B-K 950 890 840 680 780 240 Φ26x3 G3/4
FP-180XDT/
B-K 950 890 840 680 780 320 Φ26x3 G3/4
Notes: (E)Models applicable to EU.
2.4 Installation and Maintenance Space
H
>20
Unit:mm
H indicates the depth of the unit.

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2.5 Installation of the Front Panel
2.5.1 Instalaltion Steps
As shown in the gure below, align the pipe outlet direction at the front panel to the pipe connector of
the unit. Then, do installation of the front panel as stated below.
(1) Temporarily place the front panel to the unit. In this case, put two buckles to the hookers in the opposite
direction of the air deector motor at the front panel.
(2) Temporarily place the other two buckles to the hookers at the main unit.
(3) Tighten four screws under the buckles in about 15mm (the front panel will rise up.)
(4) As shown in the gure below, adjust the front panel to make it meet the ceiling perfectly.
(5) Tighten screws until thickness of stufng material between the front panel and the unit goes within
5~8mm.
Pipe outlet
Hooker
Swing flap moto
r
Buckle
Unit
Air outlet Decorative panel
5~8mm
Stuffing material
Ceiling
2.5.2 Precautions for Installation
(1) Incorrect tightness would lead to condition as shown in the gure below.
Air leak
Air leak
Water drop
Water drop

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(2) Connection between the front panel and the main unit should be correct, as shown in the gure below.
At panelAt body
2.6 Installation of Inlet and Outlet Pipes
(1) Both the torque wrench and ordinary wrench should be used for installing and uninstalling the water
pipes, as shown in the gure below.
(2) The inlet and outlet pipes both are G3/4 threaded. Before connection, wrap the thread for 2-3 cycles
with the Teon tape for better sealing.
(3) After the inlet and outlet pipes have been connected, start the water pump to check if they leak or not.
Then, expel air inside the pipe system through the exhaust valve and insulate it properly as shown in
the gure below.
(4) Wrap the connectors with sponge and do insulation to the exhaust valve.
Pipe tongs
Wrench
Connector
Screw
Tier
Inlet pipe
Outlet pipe
Insulation sleeve
Sponge
Tier
Insulation sleeve
2.7 Installation of the Drain Pipe
2.7.1 Precautions for the Drain Pipe
(1) The drain pipe should be as short as possible, with at least an inclination degree of 1%~2%, so that
the condensate can be drained out smoothly. If the inclination degree fails to meet this requirement, a
raising pipe is required.
(2) The drain hose should be sized equal or larger than the drain pipe.
(3) The drain pipe should be installed in accordance with the gure below and also insulated properly.
Incorrect installation and insulation would lead to generation of condensate or water drop which would

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damage the ceiling and decoration.
Added drain pipe
Insulation Teflon
Drain pipe
of the
indoor unit
(4) Insert one end of the drain pipe to the drain hole and tighten it with the drain hose and tiers. The drain
hose cannot be connected to the drain hole with adhesive.
(5) When the drain pipe is used for multiple sets of equipment, it should be placed 10mm lower than the
drain outlet of each equipment. For this special purpose, the pipe with quite thick pipe wall should be
used.
2.7.2 Installation Steps of the Drain Pipe
(1) The spacing should be kept between 1~1.5m.
1-1.5m
(Correct) 1/100 ro more gradient (Wrong)
(2) Insert the drain hose to the water outlet and x it with the clamp.
(3) For better insulation, the sponge should be wrapped around the clamp.
Sponge
Clamp
Clamp
＜4mm
Sponge Drain hose
2.7.3 Precautions for the Raising Pipe
(1) The height of the raising pipe should be less than 280mm.
(2) The raising pipe should be at a right angle to the unit and keep a distance with the unit within 300mm.
below500mm
.
Within 300mm
Drain raising
hose
220mm
Ceiling Clamp
Hoisting stand
Roof
Drain hose
1-1.5m below280mm
Notes:
(a) The inclination degree of the attached drain hose should be kept within 75mm.
(b) Do not apply outer force to the drain pipe.

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＜500mm
.
＜75mm
Drain hose
(c) When multiple drain pipes will join together, connect them as the gure below. The T-shaped joint
should be sized properly.
Above 100mm
T-shaped
connector
2.8 Installation of the Water Valve
2.8.1 Precautions
Flared nut Outlet pipe
Torque wrench Screw
Ordinary wrench
Valve
Teflon tape
Connector Screw
(1) See the gure above for installation of the water valve. Firstly, connect one end of the water pipe to
the water inlet of the unit, and then connect the other end to water valve. During installation, both the
torque wrench and ordinary wrench should be used. For the former, the torque should be less than
90N.m.
(2) The pipe connectors and the water valve are G3/4 threaded. In order for better sealing effect, before
connection they should be wrapped with Teon tape.
(3) After the connector, the water valve and the water pipes have been nished, start the water pump and
see if they leak or not.
(4) Insulate the water valve and the pipe with sponge.
(5) When the water pipe and water valve have been installed, connect the connection line of the valve to
the wiring board of the unit.
(6) Check the wiring carefully and then start the water pump and unit to see if they work normally.

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2.8.2 Requirements on Installation
(1) The water valve should be installed as the following statement; otherwise it would affect the normal
operation.
It is not allowed to directly insulate the connection line
of the actuator and the water pipe together, otherwise it
would lead to shortcutting of the water valve which would
affect its service life.
Connection line of the actuator
Insulation
sleeve
Water pipe
Put the connection line through the PVC pipe
and then bind them with the insulation sleeve.
Connection line
of the actuator PVC pipe
Insulation
sleeve
Water pipe
Never install the valve downwards, otherwise the
condensate would flow into the valve and damage the
valve or then would lead to shortcutting or re hazards.
The main body of the valve should be
installed upwards and the power lines should be
arranged above the water pipe.
Insulation sponge
Do not cover fully the valve with the
insulation sponge; otherwise it would
lead to poor heat radiation and even
re hazards.
(2) There are direct pass and bypass for the water valve and they can be selected based on actual
conditions. See the gure below for the working principle for the water valve.
Power lines
Switch
Bypass
Inlet pipe
FCU
Outlet pipe
2.9 Electric Wiring
2.9.1 Precautions for Electric Wiring
(1) All electric wiring should be performed by the qualied technical in accordance with local standards,
regulations and this manual.
(2) The specialized electric circuit with rated voltage should be used for the power supply.
(3) Do not pull the power lines by force.
(4) The power lines should be sized sufciently. The damaged power lines and connection lines should be

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replaced by specialized lines.
(5) The unit should be connected to the specialized grounding device by the qualied servicemen. For the
xed lines, there should be the breaker and air switch with sufcient capacity. The air switch should be
of the magnetic or electric trip-off functions so as for shortcutting and overloading protection.
(6) The unit should be grounded reliably. The yellow-green line is the grounding line. Do not put it into
other use, or cut it. The grounding line cannot be xed with self-tapping screws; otherwise it would
lead to electric shock. The grounding line cannot be connected to the running water line, the gas line,
the drain line and where it is not approved.
2.9.2 Steps for Electric Wiring
(1) Open the electric box and pull the power lines and connection lines of the electric water valve through
the rubber rings. Then, x them with the wire clamps.
(2) Perform wiring in accordance with the electric wiring diagram.
(3) Fix the lines with the wire clamps.
(4) Connect the control lines.
(5) Pull the control lines through the rubber ring to the wiring terminals.
(6) Wrap the lines with sponge in case of dewing.
(7) Fix the lines and close the electric box cover.
Elements for different models vary, and the gure below is just for reference.
Teminal board
Electric box cover
Wire clamp
Wire clamp

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2.9.3 External Wiring Diagram
FP-51XD/A-K, FP-68XD/A-K
FP-85XD/B-T, FP-102XD/B-T, FP-125XD/B-T, FP-140XD/B-T, FP-160XD/B-T, FP-180XD/B-T,
FP-200XD/B-T
Note: this wiring diagram is also applicable to the model with “E”.

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FP-200XD/D-K
Note: this wiring diagram is also applicable to the model with “E”.
FP-68XDT/B-K, FP-85XDT/B-K, FP-125XDT/B-K, FP-180XDT/B-K
Note: this wiring diagram is also applicable to the model with “E”.