Technibel GR120R Manual

TECHNICAL DATA & SERVICE MANUAL
Indoor Unit Outdoor Unit
MCA120R GR120R
MCA127R GR127R
MCA135R GR135R
SPLIT SYSTEM AIR CONDITIONER
0.8180.179.0 03/2001

i
Important!
Please Read Before Starting
This air conditioning system meets strict safety and
operating standards. As the installer or service person,
it is an important part of your job to install or service the
system so it operates safely and efficiently.
For safe installation and trouble-free operation, you
must:
●Carefully read this instruction booklet before
beginning.
●Follow each installation or repair step exactly as
shown.
●Observe all local, state, and national electrical codes.
●Pay close attention to all warning and caution notices
given in this manual.
This symbol refers to a hazard or
unsafe practice which can result
in severe personal injury or
death.
This symbol refers to a hazard or
unsafe practice which can result
in personal injury or product or
property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help
for a special problem, contact our sales/service outlet
or your certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
Special Precautions
When Wiring
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR
DEATH. ONLY A QUALIFIED,
EXPERIENCED ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and
tubing are completed or reconnected and checked.
• Highly dangerous electrical voltages are used in this
system. Carefully refer to the wiring diagram and
these instructions when wiring. Improper connections
and inadequate grounding can cause accidental
injury or death.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause
overheating at connection points and a possible fire
hazard.
WARNING
CAUTION
WARNING
When Transporting
Be careful when picking up and moving the indoor and
outdoor units. Get a partner to help, and bend your
knees when lifting to reduce strain on your back. Sharp
edges or thin aluminum fins on the air conditioner can
cut your fingers.
When Installing…
…In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the
units weight. It may be necessary to construct a strong
wood or metal frame to provide added support.
…In a Room
Properly insulate any tubing run inside a room to
prevent “sweating” that can cause dripping and water
damage to walls and floors.
…In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to
provide a solid, level foundation for the outdoor unit.
This prevents water damage and abnormal vibration.
…In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
…In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is
higher than drifting snow. Provide snow vents.
When Connecting Refrigerant Tubing
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces
of the flare and union tubes before connecting them,
then tighten the nut with a torque wrench for a leak-
free connection.
• Check carefully for leaks before starting the test run.
When Servicing
• Turn the power off at the main power box (mains)
before opening the unit to check or repair electrical
parts and wiring.
• Keep your fingers and clothing away from any
moving parts.
• Clean up the site after you finish, remembering to
check that no metal scraps or bits of wiring have
been left inside the unit being serviced.
Others
• Ventilate any enclosed areas when installing or
testing the refrigeration system. Escaped refrigerant
gas, on contact with fire or heat, can produce
dangerously toxic gas.
• Confirm upon completing installation that no
refrigerant gas is leaking. If escaped gas comes in
contact with a stove, gas water heater, electric room
heater or other heat source, it can produce
dangerously toxic gas.
CAUTION
ii

Table of Contents
Page
1OPERATING RANGE 1
2SPECIFICATIONS 2
2-1
Unit Specification 2
2-2
Indoor Unit 3
2-3
Outdoor Unit 4
2-4
Other Component Specifications 5
3DIMENSIONAL DATA 6
3-1
Indoor Unit 63-2
Outdoor Unit 7
4REFRIGERANT FLOW DIAGRAM 8
5PERFORMANCE DATA 9
5-1
P Air Throw Distance Chart 9
5-2
Cooling Capacity 10
5-3
Heating Capacity 13
6ELECTRICAL DATA 14
6-1
Electrical Characteristic 146-2
Electric Wiring Diagrams 15
7FUNCTION 16
7-1
Cool Mode Operation 16
7-2
Heat Mode Operation 17
7-3
Auto Cool/Heat mode operation 18
7-4
Dry Mode Operation 19
7-5
Protection Operation in Cool and Dry Operation Mode 20
7-6
Protection Operation in Heat Mode)22
7-7
Cool Draft Prevention (Heating 25
7-8
Others Features 26
8TROUBLESHOOTING 28
8-1
Check before and after troubleshooting 28
8-2
Check Power Supply Wiring 28
8-3
Check Indoor Unit Wiring 28
8-4
Check Power Supply 28
8-5
Check Lead wires and Connector in Indoor and Outdoor Units 28
8-6
Air Conditioner Does not work 29
8-7
Some Parts of Air Conditioner does not operate 32
8-8
Air Conditioner operates, but abnormalities are observed 34
8-9
If a Sensor is defective 35
9CHECKING ELECTRICAL COMPONENTS 36
9-1
Measure of insulation Resistance 36
9-2
Check Continuity for Electrical Parts 36
9-3
Checking Motor Capacitor 37
iii

1.OPERATING RANGE
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
Maximum 32°C D.B. / 23°C W.B. 43°C D.B.
Cooling Minimum 19°C D.B. / 14°C W.B. 19°C D.B.
Maximum 27°C D.B. 24°C D.B. / 18°C W.B.
Heating Minimum 16°C D.B. -5°C D.B. / -6°C W.B.
DB-Dry Bulb
WB-Wet Bulb
11

2.SPECIFICATIONS
2-1 Unit Specification
Indoor Unit
MCA120R MCA127R MCA135R
Model Unit Outdoor Unit
GR120R GR127R GR135R
Voltage Rating 230 V –50 Hz
Performance W
2000 2300 2450 2800 3150 3550
Capacity Cooling / Heating BTU/h
6820 7840 8350 9550 10740 12100
Air Circulation Hi-Me-Low
m3/hr
280 320 420 280 320 420 300 350 450
Moisture Removal Liters/h
0.5 0.8 1.1
Electrical Rating
Running Amperes A
3.2 3.3 4.0 4.0 5.5 5.7
Power Input W
700 720 850 850 1150 1250
Power Factor %
95 95 92 92 90 91
C.O.P W/W
2.86 3.19 2.88 3.29 2.74 2.96
Compressor locked rotor amperes A
20 24 30
Features
Controls / Temperature Control
Microprocessor / I.C. thermostat
Control Units
Wireless remote control unit
Timer
24 hr ON o OFF
Fan Speed Indoor/Outdoor
3-Auto / 1
Horizontal
Manual
Air Flow Direction (indoor) Vertical
Auto
Air Filter
Washable, Anti-Mold
Compressor
Rotary ( Hermetic )
Refrigerant/Amount charged at shipment g
R22-690 R22-650 R22-690
Refrigerant Control Capillary
Indoor: hi / Me / Lo dB-A
39 33 28 40 35 31 42 38 34
Operation Sound Outdoor: Cool/Heat dB-A
38 40 37 40 37 40
Refrigerant Tubing Connections Flare
Max Allowable tubing length at shipment mt
7.5
Narrow tube mm (in)
6.35 (1/4”)Refrigerant tube
diameter Wide tube mm (in)
9.52 (3/8”) 9.52 (3/8”) 12.7 (1/2”)
Lenght
mt
10 10 15
Max allowable tubing Refrigerant
g/m
15 15 15
Dimensional & Weight Indoor Unit Outdoor Unit
Height mm
270 540
Width mm
805 700
Unit dimensions Depth mm
181 265
Height mm
343 585
Width mm
855 830
Package dimensions Depth mm
232 360
Net Kg
835 36 38
Weight Shipping Kg
10 38 39 41
Shipping volume m3
0.07 0.18
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:
Rating conditions are:
Cooling : Indoor air temperature 27 °C D.B. / 19 °C W.B.
Outdoor air temperature 35 °C D.B. / 24 °C W.B.
Heating : Indoor air temperature 20 °C D.B.
Outoor air temperature 7 °C D.B. / 6 °C W.B.
2

2-2 Indoor Unit
Model Unit
MCA120R MCA127R MCA135R
Controller PCB
Part No
WSA-LTR
Controls Microprocessor
Control circuit fuse 250 V –3.15 A
Remote Control Unit
Fan & Fan Motor
Type
Cross-Flow
Q.ty….Dia. and length mm
1-θ 95 / 617
Fan motor model….Q.ty
KFV4Q-11HP-S-----------1
No of poles…rpm (230V,hi)
4-----1160 4-----1160 4------1250
Nominal output W
10
BRN-WHT
561.8
VLT-WHT
197.4
VLT-ORG
63.4
YEL-ORG
155.7
Coil Resistance (Ambient Temp.)
YEL-PNK
115.9
Safety device Type
Internal Fuse
Open
°C
145 +/-5
Operating temp.
Close
°C
-
µf
0.6 0.6 0.8
Run capacitor Vac 400 400 400
Flap Motor
Type
Stepping Motor
Model MP24GAI
Rating 12 VDC
Coil resistance (Ambient temp 25°C) ohm
380
Heat Exch.Coil
Coil
Aluminium plate fin/ Copper tube
Rows 2
Fin pitch mm
1.6
Face area m2
0.13
DATA SUBJECT TO CHANGE WITHOUT NOTICE
3

2-3 Outdoor Unit
Model Unit
GR120R GR127R GR135R
Compressor
Type
Rotary (Hermetic)
Compressor model mm
RH130VHAT RH154VHAT RH189VHAF
Nominal output
Compressor oil Diamond MS 56 ….Amount cc
300 300 520
Coil resistance (Ambient temp 25°C)+/-7% cr Ω
4.26 3.5 2.64
cs
Ω
5.87 5.55 4.02
Safety device Type
Overload relay
Operating temp Open °C
150 +/-5150 +/-5155 +/-5
Close °C
90 +/-10 90 +/-10 90 +/-10
Operating amp(Ambient temp 25°C) -
Run capacitor µF
25 25 30
VAC
450 450 450
Grank case heater
Fan & Fan Motor
Type
Propeller
Q.ty….Dia. and length mm
1------θ 370
Fan motor model….Q.ty
K35610-M01723-------1
No of poles…rpm (230V,hi)
6------820
Nominal output W
22
Ω
BRN-WTH 374 +/-7%
Ω
PNK-BRN 484 +/-7%
Coil Resistance (Ambient Temp.20°C)
-
Safety device Type
Internal protector
Open
°C
150 +-10
Operating temp.
Close
°C
Auto
µf
1.5
Run capacitor Vac 400
Heat Exch.Coil
Coil
Aluminium Plate fin / Copper tube
Rows 1
Fin pitch mm
1.6 1.6 1.2
Face area m2
0.35
External Finish
Acrylic baked-on enamel finish
DATA SUBJECT TO CHANGE WITHOUT NOTICE
4

2-4 Other Component Specifications
¢Indoor unit
Transformer (TR) TPN41-0001
Primary
230V
50HZ
Secondary
12 V
300mARating Capacity
Ω (at 21°C)
Primary
495
Coil resistance
Secondary
2.86
Thermal cut-off temp.
125°C
Thermistor (Coil sensor) NTC -TERMISTOR
Resistance KΩ
10 at 25°C
Thermistor (Room sensor)
Resistance KΩ
¢Outdoor Unit
4-Way Valve (Solenoid coil) CHV01A(coil) CHV-0101 (valve)
Coil rating
230V-50HZ
Coil resistance KΩ
1.430 +/-7%
Thermostat ( Defrost thermo ) NTC -TERMISTOR
Operating Temp °C
–2 / 15 +/-2 ON
Resistance KΩ
10 at 25°C
5

3.DIMENSIONAL DATA
3-1Indoor Unit
6

3-2 Outdoor Unit
7

4.REFRIGERANT FLOW DIAGRAM
8

5.PERFORMANCE
5-1 Air Throw Distance Chart
COOLING
Room ir temp :27°C
Fan Speed :High
Horizontal distance (m)
1
2
3
4
5
6
7
8
9
1
2
3
4
Axis Air Velocity (m/s)
Vertical distance (m)
•Axis air velocity
0°
•Flap angle 30°
HEATING
Room ir temp :20°C
Fan Speed :High
Horizontal distance (m)
1
2
3
4
5
6
7
8
9
1
2
3
4
Axis Air Velocity (m/s)
Vertical distance (m)
•Axis air velocity
45°
•Flap angle 60°
9

COOLING
Room ir temp :27°C
Fan Speed :High
Horizontal distance (m)
1
2
3
4
5
6
7
8
9
1
2
3
4
Axis Air Velocity (m/s)
Vertical distance (m)
•Axis air velocity
0°
•Flap angle 30°
HEATING
Room ir temp :20°C
Fan Speed :High
Horizontal distance (m)
1
2
3
4
5
6
7
8
9
1
2
3
4
Axis Air Velocity (m/s)
Vertical distance (m)
•Axis air velocity
45°
•Flap angle 60°
10

5-2 Cooling Capacity
Indoor Unit MCA127R
Otdoor Unit GR127R 230 V Single Phase 50 HZ
RATING CAPACITY 2.45kW
AIR FLOW RATE 420m³/h
EVAPORATOR CONDENSER
ENT.TEMP. °C OUTDOOR AMBIENT TEMP. °C
W.B. D.B. 25 30 35 40 43
TC 2,32 2,25 2,15 2,01 1,86
CM 0,70 0,75 0,80 0,88 0,96
21 SHC 1,59 1,56 1,51 1,44 1,37
23 SHC 1,80 1,77 1,72 1,65 1,58
15 25 SHC 2,01 1,97 1,92 1,85 1,78
27 SHC 2,22 2,18 2,13 2,01 1,86
29 SHC 2,32 2,25 2,15 2,01 1,86
31 SHC 2,32 2,25 2,15 2,01 1,86
TC 2,51 2,42 2,30 2,16 1,99
CM 0,72 0,77 0,82 0,91 0,98
21 SHC 1,39 1,35 1,30 1,24 1,16
23 SHC 1,60 1,56 1,50 1,44 1,36
17 25 SHC 1,81 1,76 1,71 1,65 1,57
27 SHC 2,02 1,97 1,91 1,85 1,77
29 SHC 2,24 2,17 2,12 2,06 1,98
31 SHC 2,44 2,38 2,30 2,16 1,99
TC 2,66 2,57 #2,45 2,30 2,12
CM 0,75 0,79 0,85 0,93 1,01
21 SHC 1,17 1,13 1,08 1,01 0,94
23 SHC 1,37 1,34 1,28 1,22 1,15
19 25 SHC 1,57 1,54 1,49 1,43 1,35
27 SHC 1,77 1,75 1,69 1,63 1,56
29 SHC 1,97 1,95 1,90 1,84 1,76
31 SHC 2,18 2,16 2,10 2,04 1,97
TC 2,82 2,73 2,60 2,44 2,25
CM 0,77 0,81 0,88 0,96 1,04
23 SHC 1,15 1,11 1,06 1,00 0,92
21 25 SHC 1,35 1,32 1,27 1,20 1,13
27 SHC 1,55 1,52 1,47 1,41 1,33
29 SHC 1,75 1,73 1,68 1,61 1,54
31 SHC 1,96 1,93 1,88 1,82 1,75
TC 3,01 2,89 2,73 2,55 2,38
CM 0,78 0,83 0,90 0,98 1,07
23 25 SHC 1,13 1,08 1,02 0,96 0,89
27 SHC 1,32 1,28 1,23 1,16 1,10
29 SHC 1,52 1,49 1,43 1,37 1,30
31 SHC 1,74 1,70 1,64 1,57 1,51
TC :Total Cooling Capacity KW
SHC :Sensible Heat Capacity KW
CM :Compressor Input KW
Rating Condition (#Mark) are
Outdoor Ambient Temperature 35°C D.B.
Indoor Unit Entering Air Temp 27°C D.B / 19°C W.B.
11

Indoor Unit MCA135R
Otdoor Unit GR135R 230 V Single Phase 50 HZ
RATING CAPACITY
3.15 kW
AIR FLOW RATE 450 m³/h
EVAPORATOR CONDENSER
ENT.TEMP. °C OUTDOOR AMBIENT TEMP. °C
W.B. D.B. 25 30 35 40 43
TC 2,99 2,90 2,76 2,59 2,39
CM 0,95 1,01 1,09 1,19 1,30
21 SHC 2,05 2,01 1,94 1,86 1,76
23 SHC 2,32 2,27 2,21 2,12 2,03
15 25 SHC 2,59 2,53 2,47 2,38 2,29
27 SHC 2,86 2,80 2,73 2,59 2,39
29 SHC 2,99 2,90 2,76 2,59 2,39
31 SHC 2,99 2,90 2,76 2,59 2,39
TC 3,23 3,11 2,96 2,78 2,56
CM 0,97 1,04 1,11 1,23 1,33
21 SHC 1,79 1,74 1,67 1,59 1,49
23 SHC 2,06 2,00 1,93 1,85 1,75
17 25 SHC 2,33 2,27 2,20 2,12 2,01
27 SHC 2,60 2,53 2,46 2,38 2,28
29 SHC 2,88 2,79 2,73 2,64 2,54
31 SHC 3,14 3,05 2,96 2,78 2,56
TC 3,42 3,31 #3,15 2,96 2,73
CM 1,02 1,07 1,15 1,26 1,37
21 SHC 1,50 1,45 1,38 1,30 1,21
23 SHC 1,76 1,72 1,65 1,57 1,47
19 25 SHC 2,02 1,98 1,91 1,84 1,73
27 SHC 2,28 2,25 2,18 2,10 2,00
29 SHC 2,53 2,51 2,44 2,36 2,26
31 SHC 2,80 2,77 2,70 2,62 2,53
TC 3,63 3,51 3,34 3,14 2,89
CM 1,04 1,101,19 1,30 1,41
23 SHC 1,48 1,43 1,36 1,28 1,18
21 25 SHC 1,73 1,69 1,63 1,55 1,45
27 SHC 2,00 1,96 1,89 1,81 1,71
29 SHC 2,25 2,22 2,16 2,07 1,98
31 SHC 2,52 2,49 2,42 2,34 2,25
TC 3,88 3,71 3,51 3,28 3,05
CM 1,06 1,13 1,21 1,33 1,44
23 25 SHC 1,45 1,39 1,31 1,23 1,15
27 SHC 1,70 1,65 1,58 1,49 1,41
29 SHC 1,96 1,92 1,84 1,76 1,68
31 SHC 2,24 2,18 2,10 2,02 1,94
TC :Total Cooling Capacity KW
SHC :Sensible Heat Capacity KW
CM :Compressor Input KW
Rating Condition (#Mark) are
Outdoor Ambient Temperature 35°C D.B.
Indoor Unit Entering Air Temp 27°C D.B / 19°C W.B.
12

5-3 Heating Capacity
120
110
100
90
80
Heating capacity ratio
(%)
70
60
50
40
30
20
10
0
-8
-5
0
5710
15
Outdoor temperature ( °C D.B.)
NOTE
1) •Point of Rating condition
Black dot in the chart indicate the following rating condition.
Indoor: 20°C D.B.
Outdoor: 7° C D.B. / 6°C W.B.
2)
Above characteristics indicate instantaneous operation, which does
no take into account defrost operation.
3) Fan speed: High
4)
Because this air conditioner heats a room by drawing in the heat of
the outside air (h
eat pump system),the heating efficiency will fall
when the outdoor temperature is very low. If sufficient heat cannot
be obtained with this air conditioner, user another heating
appliance in conjunction with it.
•Point of Rating Condition
13

6.ELECTRICAL DATA
6-1 Electrical Characteristics
COOLING Indoor Unit Outdoor UnitFan Motor Fan Motor Compressor Complete Unit
Performance at 230 V –50 Hz
Rating Conditions Running Amps. A
0.14
0.14
0.14
0.25
0.25
0.25
0.28
3.6 5.1 3.2 45.5
Power Input KW
27 27 29 56 56 56 617 767 1065
700 850 1150
Full Load Conditions Running Amps A
0.14
0.14
0.14
0.25
0.25
0.25
3.3 4.1 5.5 3.7 4.5 5.9
Power Input KW
27 27 29 56 56 56 717 927 1165
800 1010
1250
Rating Condition :Indoor air Temperature 27°C D.B. / 19°C W.B.
Outdoor Air Temperature 35 °C D.B.
Full Load condition :Indoor Air Temperature 32 °C D.B. / 23 °C W.B.
Outdoor Air Temperature 4.°C D.B.
HEATING Indoor Unit Outdoor UnitFan Motor Fan Motor Compressor Complete Unit
Performance at 230 V –50 Hz
Rating Conditions Running Amps. A
0.14
0.14
0.14
0.25
0.25
0.25
2.9 3.6 5.3 3.3 45.7
Power Input KW
27 27 29 56 56 56 717 767 1115
720 850 1200
Full Load Conditions Running Amps A
0.14
0.14
0.14
0.25
0.25
0.25
3.3 4.1 5.5 3.7 4.5 5.9
Power Input KW
27 27 29 56 56 56 717 927 1165
800 1010
1250
Rating Condition :Indoor air Temperature 20°C D.B
Outdoor Air Temperature 7 °C D.B./ 6°C W.B.
Full Load condition :Indoor Air Temperature 27 °C D.B.
Outdoor Air Temperature 24.°C D.B. / 18°C W.B.
14
GR120R - GR127R - GR135R
GR120R - GR127R - GR135R

6-2 Electric Wiring Diagrams
WARNING
To avoid electrical shock hazard, be
sure to disconnect power before
checking, servicing and/or cleaning
any electrical parts
Legend
CM
Compressor Motor
C1,C2,C3
Capacitor
FLP
Louvers Motor
FMO
Outdoor Fan Motor
FMI
Indoor Fan Motor
REC ASSY
Remote Control
PCB1
Indoor PC board
TH1,TH2
Thermistor
TP1,TP2
Terminal Plate
15

7-1 Cool Mode Operation
(RT - SPT) [
o
c]
+3
+2
+1
0
-1
ON
OFF
ON
OFF
H
L
M
ON
OFF
COMP
OFAN
IFAN
RV
over 3 min over 5 min
over 30 sec
In Cool Mode, the operation of the Compressor (COMP), Outdoor Fan (OFAN) and Indoor Fan (IFAN)
are determined by the difference between the Room Temperature (RT) and the Set Point Temperature
(SPT) as in the graph above.
Notes:
1. In this graph, the IFAN is operating in the “Auto Fan Speed” setting. If the user has selected the low,
medium or high fan speed, the IFAN will run constantly at that speed only.
2. In addition to the value of (RT-SPT), the operations of the relays are also controlled by protection
delays. For example, (a) the minimum On/Off time of the COMP is 5 min and 3 min respectively, and
(b) the IFAN can change speed only after it has operated at the same speed for 30 sec.
16

7-2 Heat Mode Operation
(RT - SPT) [
o
c]
+1
0
-1
-2
-3
H
OFF
L
M
ON
OFF
Note 1 Note 2
COMP
IFAN
RV
ON
OFF
30 sec
The Heat Mode operation is similar to the Cool Mode operation. The COMP, OFAN and IFAN are mainly
controlled by the value of (RT – SPT). In the graph above, the IFAN is operating in Auto Fan speed mode.
Therefore, the IFAN speed changes automatically according to the (RT - SPT).
Note 1: The 30s IFAN operation is for purging the heat from the in-coil after COMP has stopped.
Note 2: The IFAN will not be turned on until the in-coil temperature is high enough (as shown in the
graph below) to prevent the unit from supplying cool air.
IFAN Speed
Any
Low
Stop
30 35 40
ICT [
o
c]
ICT = In-coil Temperature
Any = Hi, Med or Low fan speed which is
selected by the user. In Auto Fan Speed
Mode, the fan speed is selected by the
unit automatically instead.
Low = The indoor fan is forced to operate at low
speed
17