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

Cassette Type FCU
1
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.

Cassette Type FCU
2
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.

Cassette Type FCU
3
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.

Cassette Type FCU
4
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.

Cassette Type FCU
5
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)

Cassette Type FCU
6
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.