Toyotomi TGS-28FWCA User manual

Multi Variable Air Conditioners
Cassette Type Indoor Unit Owner’s Manual
This instruction is suitable for the following model：
TGS-28FWCA
TGS-36FWCA
TGS-45FWCA
TGS-50FWCA
TGS-56FWCA
TGS-63FWCA
TGS-71FWCA
TGS-80FWCA
TGS-90FWCA
TGS-100FWCA
TGS-112FWCA
TGS-125FWCA
TGS-140FWCA

Please read this instruction carefully before operating
Thank you for your selecting of TOYOTOMI air conditioner, please read this usage
and install instruction carefully and keep it well in order to use this unit correctly.
Contents
USER NOTICES 1
Safety information 3
Install the cassette type indoor unit 4
Constitutes and Names of Parts of Cassette Type Indoor Unit 14
Working Temperature Range 14
Wired Remote Controller Operation Procedure
The components of the wired remote control 15
ON/OFF operation 15
Timer setting 16
SLEEP mode setting 17
Swing Control 17
Fan Speed Control 17
Temp. adjusting 18
Set of running mode 18
Malfunction display 18
Remote controller
operation procedure
Names and functions of every button of the remote control 20
Names and functions of every button of the remote control
(Remove the cover) 21
Operation procedure 22
How to insert batteries 22
Operation Method When Meeting An Emergency 23
Malfunction Debarring 24
Maintenance Method 26
Model and Technical Parameter 29

1
USER NOTICES
☆When operating, the entire capacity of the cooperating indoor unit should be not larger than
that of outdoor unit. Otherwise, it will cause the shortage of cooling (heating) capacity.
☆A Breaker(or fuse) need to be installed in every indoor unit, and the capacity should in
according with indoor unit’s electrical parameter; all the indoor units are required to be
centralized controlled by a total Switch, this Switch can cut off the electric power supply in
case of emergency. The Breaker(or fuse) on each indoor units have the function of short circuit
prevention and abnormal overload avoiding, it should be connected in normal situation. The
total switch controlling the power supply of all the indoor units. Before clearing and
maintenance job being carried out to the indoor units, it is very important to turn off the total
power supply switch.
☆In order to turn on the units successfully, the main power switch should be opened 8 hours before the
operation.
☆After receiving the turn off signal, every indoor unit will continue to work for 20-70sec to make use of the
rest cool air or the rest heat air in the heat exchanger, while preparing for the next operation. And this is
normal.
☆When the selected operating mode of the indoor unit are clash with the operating mode of the outdoor unit,
the malfunction light will blink after 5s on the indoor unit or remote controller showing that the operation
clash, then the indoor unit will stop. At this time, change the operation mode of the indoor unit to the one
that would not clash with the outdoor operating mode to make the operation normal. The cooling mode is
not clash with the dry mode, while the fan mode is not clash with any mode.
☆The appliance shall not be installed in the laundry
☆An all-pole disconnection switch having a contact separation of at least 3mm in all poles should
be connected in fixed wiring
☆Missing information regarding electric supply tolerances(+/-10%, +/-1Hz) in documentation
☆Missing information regarding humidity (30-95%) in documentation

2
☆Missing information regarding installation altitude (max 1000m) in documentation
☆Information regarding transport/storage temperature (-25-55°C) is missing
☆Main switch provided by end user: main switch handle should be black or gray, it can be
locked in “OFF” position with padlock
☆The main disconnection device should be explained in user manual and the height should be
recommended at 0.6-1.7m. over current protection is required(EN 60947-3, EN 60947-2)
☆The cooling range of the unit is the outdoor environment temp.18-43℃DB, the heating range
of the unit( only for the heat pump type unit) is the outdoor environment temp. -16-15℃WB.

3
Safety information
Please read this manual carefully before use this unit, and operate it correctly according to the guide in this manual.
1．Please take specially note to the meaning of these two marks：
Warning！：This mark means that it may cause casualty or badly heart if the operation is incorrect.
Note！：This mark means that it may cause casualty or property loss if the operation is incorrect.
Warning！
zDo not adopt fuse with unsuitable capacity or adopt iron thread instead of fuse, otherwise malfunction or fire may
happened.
zCut down the main power switch immediately if malfunction (such as smell the burning odor etc.) happened.
zMaintain ventilation to prevent oxygen leakage in room.
zDon’t insert finger or stick like things into discharge vent or outlet grill.
zPlease make sure that the unit is installed in the place that can bear the weight of it adequately. If the place is not
strong enough, the air conditioner may drop and cause casualty event.
zDon’t spray or smear any oil paint or insecticide on the surface of unit, otherwise, fire may be leaded.
zDo not refit the conditioner. Please contact the agency or prefect ional personnel to repair or move the conditioner.
Note！：
zPlease check and make sure that the cord, drainage pipe and tubes are connected in the correct way to prevent
leakage of water, refrigerant, electric shock or fire.
zThe main power must connectable to the earth in order to assure the conditioner earthing effectively and to prevent
electric shock. Please don’t connect the earthing line with the gas pipe, water pipe, lightening rod or the connecting
line of telephone.
zThe air conditioner should be turned off at least after 5 mins’ operation; otherwise it would affect the duration of the
unit.
zDon’t let the children operate the air conditioner.
zPlease don’t operate the unit by wet hand.
zPlease turn off the main power of the unit before cleaning the conditioner or change the filter.
zPlease cut off the main power if the conditioner will be used for a long time.

4
Install of the Cassette type indoor unit
●Schematic diagram of installation spaces
GMV(L)-R90T/Na-K
GMV(L)-R100T/Na-K
GMV(L)-R112T/Na-K
GMV(L)-R125T/Na-K
GMV(L)-R140T/Na-K
GMV(L)-R36T/Na-K
GMV(L)-R45T/Na-K
GMV(L)-R50T/Na-K
≥1500
≥ 1500
≥1800
340
Model H
260
H
Ground
surface
Wall
surface Wall
surfac
Wall
surface
>20
210
unit:mm
GMV(L)-R56T/Na-K
GMV(L)-R63T/Na-K
GMV(L)-R71T/Na-K
GMV(L)-R80T/Na-K
GMV(L)-R28T/Na-K
Fig.1
●Select install location of the indoor unit
1. Obstruct should put away from the intake or outlet vent of the indoor unit so that the airflow can be blown though all
the room.
2. Make sure that the installation had accord with the requirement of the schematic diagram of installation spaces.
3. Select the place where can stand 4 times of the weight of the indoor unit and would not increase the operating noise
and oscillate.
4. The horizontally of the installation place should be guaranteed.
5. Select the place where easy drain condensated coagulated water, and easy connect with outdoor unit.
6. Make sure that there are enough space for care and maintenance. Make sure that the weight between the indoor unit
and ground is above 1800mm.
7. When installing the steeve bolt, check if the install place can stand the weight 4 times of the unit’s. If not, reinforce
before installation. (Refer to the install cardboard and find where should be reinforced)
Note！
There will be lots of lampblack and dust stick on the acentric, heat exchanger and water pump in dining room and
kitchen, which would reduce the capacity of heat exchanger, lead water leakage and abnormal operation of the water
pump. The following treatment should be taken under this circumstance:
1. Ensure that the smoke trap above cooker has enough capacity to obviate lampblack to prevent the indraft of the
lampblack by the air conditioner.
2. Keep the air conditioner far from the kitchen so that the lampblack would not be indraft by the air conditioner.
TGS-28FWCA TGS-36FWCA
TGS-45FWCA TGS-50FWCA
TGS-56FWCA TGS-63FWCA
TGS-71FWCA TGS-80FWCA
TGS-90FWCA TGS-100FWCA
TGS-112FWCA TGS-125FWCA
TGS-140FWCA

5
Install the cassette type indoor unit
●Important notice:
☆To guarantee the good performance, the unit must be installed by professional personnel according with this
instruction.
☆Please contact the local TOYOTOMI special nominated repair department before installation. Any malfunction
caused by the unit that is installed by the department that is not special nominated by TOYOTOMI would not deal with
on time by the inconvenience of the business contact.
●Dimension of ceiling opening and location of the hoisting screw (M10)
780(Gaps between hoisting screw rods)
840( Indoor unit)
890*(Ceiling opening)
950(Decorated surface boards)
950(Decorated surface boards)
890(Ceiling opening)
840( Indoor unit)
680(Gaps between hoisting screw rods)
A
Hoisting screw(X4)
Refrigerant pipe
Install dimension of mode
TGS-28FWCA, TGS-36FWCA, TGS-45FWCA, TGS-50FWCA, TGS-56FWCA, TGS-63FWCA, TGS-71FWCA,
TGS-80FWCA, TGS-90FWCA, TGS-100FWCA, TGS-112FWCA, TGS-125FWCA, TGS-140FWCA
☆The drilling of holes in the ceiling must be done by the professional personnel.
(160)
Ceiling
Installation stands for main body of the unit
Above 20
Fig.2
Notes: The dimension for the ceiling openings with *marks can be as large as 910mm. But the
overlapping sections of the ceiling and the decorated surface boards should be maintained at no less than
20mm.

6
Install of the Cassette type indoor unit
●Main body of hoisting air conditioner
1 The primary step for install the indoor unit.
☆When attach the hoisting stand on hoisting screw, do use nut and gasket individually at the upper and lower of the
hoisting stand to fix it. The use of gasket anchor board can prevent gasket break off.
2 Use install cardboard
☆Please refer to the install cardboard about the dimension of ceiling opening.
☆The central mark of the ceiling opening is marked on the install cardboard.
☆Install the install cardboard on the unit by bolt (3 piece), and fix the angle of the drainage pipe at the outlet vent by
bolt.
3 Adjust the unit to the suitable install place. (Refer to the fig.2)
4 Check if the unit is horizontal.
☆Inner drainage pump and bobber switch are included in the indoor unit, check if 4 angle of every unit are horizontal
by water lever. (If the unit is slant toward the opposite of the coagulate water flow, there may be malfunction of the
bobber switch and lead water drop.)
5 Backout the gasket anchor board used to prevent gasket break off and tighten the nut on it.
6 Backout the install cardboard.
[Fix the hoisting stand firmly]
Water lever
Tighten (double nuts)
Bolt of one of the angle of outlet pipe is fix
on the angle of the drainage slot
[Fix the install cardboard]
[Fix the gasket firmly]
Polyethylene pipe Bolt （attachment）
Center of the ceiling
opening
Bolt （attachment）
Install cardboard
Gasket anchor board
(attachment)
Nut (supplied at scene)
Hoisting stand
Gasket (attachment)
Insert
Note！
●Please do tighten the nuts and bolts to prevent air conditioner break off.

7
Install of the Cassette type indoor unit
●Connect the refrigerant pipe
☆When connect the pipe to the unit or backout it from the unit, please do use both spanner and torque wrench. as
shown in fig.3.
☆When connect, smear both inside and outside of the flare nut with freeze motor oil, screw it by hand and then tighten
it with spanner.
☆Refer to form 1 to check if the wrench had been tightened (too tight would mangle the nut and lead leakage).
☆Examine the connection pipe to see if it had gas leakage, then take the treatment of heat insulation, as shown in the
fig.3.
☆Only use median sponge to entwine the wiring interface of the gas pipe and heat preservation sheath of the gas
collection tube.
Heat preservation
sheath of gas collection
tube (attachment)(for
gas tube)
Heat preservation
sheath of liquid inlet
tube (attachment) (for
liquid tube)
Flare nut
Wiring interface
Spanner
Liquid inlet tube
Gas collection tube
Torque wrench
Median sponge (attachment)
(entwine the wiring interface
with seal mat)
Thread fasten(x4)
Smear freeze motoroil
here
Fig.3
Form 1: The tightening torque needed for tightening nut
Diameter（Inch）Surface thickness（mm）Tightening torque (N.m)
φ1/4’’ ≥0.5 15-30 (N·m)
φ3/8’’ ≥0.71 30-40 (N·m)
φ1/2’’ ≥1 45-50 (N·m)
φ5/8’’ ≥1 60-65 (N·m)
φ3/4’’ ≥1 70-75 (N·m)
●Drainage hose
1. Install the drain hose
☆The diameter of the drain hose should be equal or bigger than the connection pipe’s. ( The diameter of polythene
pipe: Outer diameter 25mm Surface thickness ≥1.5mm)
☆Drain hose should be short and drooping gradient should at less 1/100 to prevent the formation of air bubble.
☆If drain hose cannot has enough drooping gradient, drain raising pipe should be added.
☆To prevent bent of the drain hose, the distance between hoisting stand should is 1 to 1.5m.

8
Install the cassette type indoor unit
×(wrong)
○(Correct) 1/100 or more gradient
1-1.5m
☆Use the drain hose and clamp attached. Insert the drain
hose to the drain vent, and then tighten the clamp.
☆Entwine the big sponge on the clamp of drain hose to
insulate heat.
☆ Heat insulation should be done to indoor drain hose.
Drain step up pipe note
☆The install height of the drain raising pipe should less
than 280mm.
☆The drain raising pipe should form a right angle with the unit, and distance to unit should not beyond 300mm.
below500mm
.
Within 300mm
Drain raising
hose
.
220mm
Ceiling Clamp(attachment)
Hoisting stand
Roof
Drain hose 1-1.5m below280mm
Instruction
☆The slant gradient of the attached drain hose should be within
75mm so that the drain hole doesn’t has to endure the unnecessary
outside force.
☆Please install the drain hose according to the following process
if several drain hoses join together.
The specs of the selected join drain hose should fits the running capacity of the unit.
.
Above100mm T-tie in join drain hose
below500mm
.
below75mm
Drain hose(attachment)
Below 4mm
Sponge(attachment)
Clamp(attachment)
Clamp
Drain hose
Sponge (gray)

9
Install the cassette type indoor unit
2 Check the smoothness of drain after installation.
☆Check the drain state by immitting 600cc water slowly from the outlet vent or test hole.
☆Check the drain in the state of refrigerating after installation of the electric circuit.
[Way of immiting]
.
Drain hose Test hole cover
Test hole
Above100mm
Drain vent for repair use (plastic
stopper is included) (drain the water
in waterspout by this outlet vent)
<Immiting water from the outlet
vent terminal>
Plastic water pot (The length of the
pipe should be about 100mm.)
<Immiting water from the rest hole>

10
Install the cassette type indoor unit
●Electrical wiring
Note: The power of the entire indoor unit must be unity power supply
☆About the electrical wiring, please see the circuit diagram attached with the unit.
☆All the installation of electrical wiring must be done by professional personnel.
☆Please do take the earthing treatment.
Wiring method of connection unit and controller
☆Connection wiring (communication)：
①Open electric box cover(1), drag the wiring (communication)from the rubber plug A, and impact them well
individually by impact fastener.
②Wiring according to the indoor side circuit diagram.
☆Fix the impact fastener after connection.
☆Entwine the small sponge on the electric wire ( do entwine it to prevent condensation)
☆Impact tightly by impact fastener after connection and then fit on the electric box (1) and (2).
☆Connect the 3 cord rubber wire to the counter terminal of the 3 way terminal board.
Cable-cross
loop
Electric box cover（1）
Do seal heretoprevent
water inleakage from here
Electric box cover（2）
3 core rubber wire
NL
Cable-cross
loop
Npower supply
3corerubber wire
3 way terminal board
Impact fastener
L

11
Install the cassette type indoor unit
●Function description of functional dial switch S7
1．The 3-bit dial switch must be set before energizing the main board and it determines running state of indoor unit.
2．Function of it is as follow:
Dial switch
Silk screen Function Dial ON Dial OFF
1（S / R）
Selection of memory mode:
A：Selection between reset mode and standby mode after energizing
B：This function is available without wired controller.
Standby after
energizing
Reset after
energizing
2（L / I）
Selection between manual controller and receiver
A：If manual controller is selected, remote-control function of receiver
will be shielded.
B：If receiver is selected, wired controller will be non-effective.
Selecting
wired
controller
Selecting
receiver
joint
3（M / S）
Setting of main and slave indoor units
A：For resolution of conflict among the modes.
B：This function is available without wired controller.
Main indoor
unit
Slave indoor
unit

12
Install the cassette type indoor unit
●Install the panel
1. Set the panel to the indoor unit body by matching the position of the swing flap motor of the panel to the piping
position of the panel to the piping position of the indoor unit as shown by fig.4.
2. Install the panel
①Install the panel on the indoor unit temporarily. When install, hang the latch on the hook that is located on the
opposite side of the swing flap on the panel of the indoor unit. (2 positions)
②Hang the remaining 2 latches to the hooks on the sides of the indoor unit.(Be careful not to let the swing motor
lead wire get caught in the sealing material.)
③Screw the 4 hexagon head screws under the latches in about 15mm. (The panel would rise)
④Adjust the panel by turning it toward the direction pointed by the arrow as shown in fig.4, so that the adjust
board connect the ceiling well.
⑤Tighten the screws until the thickness of the sealing material between panel and indoor unit reduced to 5-8mm.
⑤
.
②
④
③
②
①
Latch
Hook
Ceiling 5mm to 8mm
Decoration panel
Sealing material
Indoor unit
Air outlet vent
Swing flap motor
Piping position
Fig 4

13
Install the cassette type indoor unit
Note
1. Improper screwing of the screws may cause the troubles shown in fig.5.
Water condensatation, water drop
Air leak from ceiling
Air leak
Fig.5
2. If gap still exist between ceiling and decoration panel after tightening the screws, readjust the height of the indoor unit.
(As shown in fig.6)
If the raising lever and drain hose are
not affect, can adjust the height of
indoor unit by the hole on the corner
of panel.
Gaps are not allowed
Fig.6
※After fixing, be sure no gap left between the ceiling and the panel.
3. Wiring of the decoration panel (Fig.7)
☆Connect the joints for swing flap motor lead wire (at 2 places) installed on the panel.
At body At pane
At paneAt body
Fig.7

14
Constitutes and Names of Parts of Cassette Type Indoor Unit
Drainage equipment (inside type)
Discharge condensate water from
indoor unit when cooling
Drainage hose
Guide louver
(placed in air
outlet vent)
Connecting pipe
Air outlet vent
Air inlet grille
Air filter, purifier (in
air inlet grille)
Working Temperature Range
Working Temperature Range
Indoor side state Outdoor side stae
Dry bulb
temp. ℃
Wet bulb
temp. ℃Dry bulb temp. ℃Wet bulb
temp. ℃
Rated Cooling 27 19 35 24
Max. cooling 32 23 43 26
Min. cooling 21 15 18 —
Rated Heating 20 15 7 6
Max. heating 27 —24 18
Min. heating 20 15 －15 －16
TGS-28FWCA
TGS-36FWCA
TGS-45FWCA
TGS-50FWCA
TGS-56FWCA
TGS-63FWCA
TGS-71FWCA
TGS-80FWCA
TGS-90FWCA
TGS-100FWCA
TGS-112FWCA
TGS-125FWCA
TGS-140FWCA

15
Wired Remote Controller Operation Procedure
The components of the wired remote control
ON/OFF
TIMER
SWING
FAN
MODE
Fig.1
Every part of wired remote controller
1 Operating mode display (Cool, Dry, Fan,
Heat) 9 On/Off button
2 Sleep mode display 10 Timer button
3 Environmental temp. display /
Malfunction display
11 Swing button
4 Fan control display (automatic, high,
media, low) 12 Swing display
5 Set Temp. display 13 Fan control button
6 Defrosting display 14 Temp. / Timer reducing button
7 Timer display 15 Temp. / Timer rising button
8 Signal receptor 16 Mode button
1）On/Off（Fig.2）
Press On/Off button to turn on air conditioner.
● Repress On/Off button once to turn off air conditioner.
Note：The displaying in fig.2 is the turned off state after connecting
with power supply. After connecting power and normal
communication, the environmental temp. will be displayed on LCD
under state of both turned on or off. At this time, as shown in fig.3
there is no pane displayed on LCD, which means that the air
conditioner is turned off.
Fig2
ON/OFF
TIMER
SWING
FAN
MODE

16
Wired Remote Controller Operation Procedure
2）Timer setting（Fig.3，the following sketch is displayed according
to the functions of wired remote controller）
Press TIMER under off state can set On Time; press TIMER
under on state can set Off Time.
Under the circumstance that without setting time ( there isn’t
information in the Timer Time Display Zone), press TIMER, then
the LCD will display the pattern of “xx.x Hours”, and the
“ ”and“hours”will keep blinking for 0.5s, press adjusting
button“▲”or“▼”can adjust set time. After adjusting set time by
button “▲”or“▼”, repress TIMER once, the pattern“”and
“hours”will no longer blinking, which indicates that TIMER
had been set.
Press TIMER once after electrify, “ 0.0 hour” is displayed and both of the two patterns are blinking on LCD,
repress TIMER once again, then the Timer pattern no loner displayed on LCD, which indicated that the TIMER
setting had been cancelled.
Under the circumstance of TIMER time had been set （i.e. the state that “ ”and“hours”don’t blink）, repress
TIMER, then the " xx.x hours” will be redisplayed on LCD (note：“xx.x”indicates the set time of last time, and
will be cancelled after electrify), and both “ ”and “hours”are blinking, at this time, adjust “▲”or“▼”to reset
timer, or repress TIMER to confirm timer function.
The timer of turning on/off ranged from 0.5-24 hours. Every single press of“▲”or“▼”, the set time will be
added or subtracted 0.5 hour. Press“▲”or“▼”serially the set time will add or subtract 0.5 hour
automatically for every 0.5s. The adjusting range of“▲”and“▼”are from 0 to 24, and the mode is
recycling mode.
Button“▲”：0.0 0.5 1.0 ······ 23.5 24.0
Button“▼”：0.0 0.5 1.0 ······ 23.5 24.0
Note：The above displayed is the relative displaying zone.
Fig3
ON/OFF
TIMER
SWING
FAN
MODE