innovair VCM1320H21 Owner's manual
- Category
- Split-system air conditioners
- Type
- Owner's manual
This manual is also suitable for
The innovair VCM1320H21 is a compact, 4-way cassette-type indoor unit designed for efficient and comfortable air conditioning in residential and commercial spaces. With its powerful cooling and heating capabilities, it ensures optimal temperature control all year round. The unit's fresh air intake function promotes healthier indoor air quality by introducing fresh air from outdoors, while the air passage function allows for additional air distribution to adjacent rooms.
The innovair VCM1320H21 is a compact, 4-way cassette-type indoor unit designed for efficient and comfortable air conditioning in residential and commercial spaces. With its powerful cooling and heating capabilities, it ensures optimal temperature control all year round. The unit's fresh air intake function promotes healthier indoor air quality by introducing fresh air from outdoors, while the air passage function allows for additional air distribution to adjacent rooms.
SERVICE MANUAL
DC INVERTER MULTI TYPE
VTM VCM
VTM1013H21
VTM1320H21
VCM1013H21
VCM1320H21
DC MULTI OUTDOOR UNITS
CONTENTS
1. General information of Indoor Units ................................................ 1
2. Features .............................................................................................. 2
3. Dimensions ........................................................................................ 4
4. Service Space (unit: mm) .................................................................. 9
5. Wiring Diagram ................................................................................ 10
6. Operation temperature range ......................................................... 11
7. Electronic function .......................................................................... 12
※
The specifications, designs, and information in this book are subject to change without notice for
product improvement.
1. General information of Indoor Units
New Four-way cassette (compact)
A5 Duct
Model name Dimension (mm) Net/Gross weight (kg)
VTM1013H21 700x635x210 20/25
VTM1320H21 920x635x210 23/29
VCM1013H21 570x570x260 16/19
VCM1320H21 570x570x260 18/21
1
2. Features
2.1 New Four-way cassette type(compact)
⑴
New panel
360°surrounding air outlet design, affords comfortable feeling
⑵
Compact design
The body size is 570×260×570mm, it’s just smaller than the ceiling board, so it’s very easy for
installation and will not damage the decoration. The panel size is 647×50×647mm.
The hooks are designed in the four corners of the body, which can save installation space.
⑶
Electric control box built-in design
The E-box is simply and safely built inside the indoor unit. It’s convenient for installation and
maintenance. Can check the control part easily, you only need to open the air return grille.
⑷
Fresh air intake function:
Fresh air fulfills air quality more healthy and comfortable.
2
⑸
Air passage function
Reserves the space for air outlet from the side of indoor unit; It’s availed to connect air duct
from the two sides to the nearby small rooms.
Dimension:Φ75mm
Fresh
Air
3
2.2 A5 Duct
⑴
Installation accessories: (Optional)
Front Board, Canvas Air Passage, Filter, Panel, for easy installation
⑵
Easy Installation: Two air inlet styles (Bottom side or Rear side)
Air inlet from rear is standard for all capacity; air inlet from bottom is optional.
The size of air inlet frame from rear and bottom is same, it’s very easy to move the cover from bottom to
rear side, or from rear to the bottom, in order to matching the installation condition.
⑶
Fresh air intake function
Install one duct from the reserved fresh-air intake to outdoor.
Continually inhale the fresh air to improve the quality of the indoor air, fulfills air quality more healthy and
comfortable.
⑷
Easy maintenance
Clean the filter (Optional, standard product without filter)
It is easy to draw out the filter from the indoor unit for cleaning, even the filter is installed in rear side or
bottom side.
Front Board
Canvas Air Passage
Filter
Panel
Air intake from rear (Standard)
Air intake from bottom (Optional)
4
Replace the motor or centrifugal fan
Remove the ventilated panel firstly. Remove a half of blower housing and take out the motor with
centrifugal fan. Directly remove two bolts, and then replace the motor or centrifugal fan easily.
⑸
Reserved remote on-off and central control ports
Reserved remote on-off ports and central control ports, can connect the cable of an on-off controller or a
central controller to realize remote on-off control function or group control function.
⑹
Built-in drain pump (Optional):
Built-in drain pump can lift the water to 750mm upmost. It’s convenient to install drainage piping under
most space condition.
Motor
Blower Housing
Ventilated Panel
Remote on-off ports
Central control ports
5
⑺
Built-in display board
The standard indoor unit can be controlled by wired controller.
There is a display board with a receiver in the E-box. Move out the display, and fix it in other place, even
in the distance of 10m. The unit will realized remoter control.
The wired controller and the display board can display the error code or production code when the chips
detect some failure.
Display
750mm upmost
Wired Controller (Standard)
Remote Controller (Optional)
6
3. Dimensions
3.1 New Four-way cassette type(compact) (12000Btu/h /18000Btu/h) :
545(Hook-location)
545(Hook-location)
647(Panel)
570(Body)
570(Body)
647(Panel)
260
3.2 A5 Duct (12000Btu/h /18000Btu/h)
7
HG
EF
A
B
D
C
L
M
Capacity
(Btu) Outline dimension(mm) Air outlet opening size Air return opening size Size of outline dimension mounted
plug
A B C D E F G H I J K L M
12000 700 210 635 570 65 493 35 119 595 200 80 740 350
18000 920 210 635 570 65 713 35 119 815 200 80 960 350
8
4. Service Space (unit: mm)
4.1 Four-way cassette (compact)
A≧280
>230
Ground
Outlet Inlet Outlet
Ceiling
4.2 A5 Duct
9
5. Wiring Diagram
5.1 VTM1013H21, VTM1320H21
10
Operation temperature range
Temperature
Mode Cooling operation Heating operation Drying operation
Room temperature ≥62℉ ≤88℉ ≥62℉
Outdoor temperature
32℉～122℉
5℉～76℉ 32℉～122℉
（5℉～122℉：For
the models with low
temperature cooling
system）
CAUTION:
1. If the air conditioner is used beyond the above conditions, certain safety protection features may
come into operation and cause the unit to operate abnormally.
2. The room relative humidity should be less than 80%. If the air conditioner operates beyond this figure,
the surface of the air conditioner may attract condensation. Please set the vertical air flow louver to its
maximum angle (vertically to the floor), and set HIGH fan mode.
3. The optimum performance will be achieved during this operating temperature zone.
11
5.2 VCM1013H21、VCM1320H21
6. Electronic function
6.1 Abbreviation
T1: Indoor room temperature
T2: Indoor evaporator temperature
TS: Setting temperature through the remote controller
7.2 Icon explanation on indoor display board
7.2.1 Four-way cassette (compact)
7.2.2 A5 Duct
OPERATION TIMER DEF./FAN ALARM
Temporary button
Operation lamp
Timer indicator Infrared signal receiver
Alarm indicator
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
MANUAL
Display digital tube
12
7.3 Main Protection
7.3.1 Sensor protection at open circuit and breaking disconnection.
7.3.2 The malfunction of correspondence in CMOS chip with EEPROM indication.
---- When the CMOS chip and EEPROM can’t communicate during the time of using EEPROM to select
parameter, the LED shows information of the malfunction (when use jump to select parameter, it doesn’t
have this function). After the showing, the unit can’t go right to work except turning off.
7.3.3 Indoor fan delayed open function
----When system starts up, the louver will be active immediately, and for cassette & ceiling&floor, the indoor
fan will open when the top louver opens 50°。For console, the indoor fan will open when the top louver
opens 15°.
----If the system runs in heating mode, the anti-cold wind function has priority.
7.3.5 Fan speed is out of control.
（
Only for console
）
When Indoor fan speed is too low (lower than 300RPM) lasting 60 seconds, the unit stops and LED displays
failure information and can’t returns to normal operation automatically.
7.4 Operation Modes and Functions
7.4.1 Fan-only mode
(1) Outdoor fan and compressor stop.
(2) Indoor fan can be set to high/med/low/auto.
(3) The louver operates same as in cooling mode.
(4) Auto fan in fan-only mode acts as follow:
For console：
When T1-24≤3℃, transfer high to medium speed,
When T1-24≤1℃, transfer medium speed to low.
When T1-24 >1.5℃, transfer low to medium speed,
When T1-24 >3.5℃, transfer m edium speed to high.
T1-24℃
3.5 High
3.0
1.5 Medium
1.0
Low
13
For the other types：
When T1-24≤3℃, transfer high to medium speed,
When T1-24≤1℃, transfer medium speed to low.
When T1-24 >1℃, transfer low to medium speed,
When T1-24 >4℃, transfer medium speed to high.
(5) Sleep mode is invalid.
7.4.2 Cooling mode
(1) Indoor fan keeps running, fan speed can be set in high/mid/low/ Auto by using a remote controller:
(2) Auto fan in cooling mode acts as follow:
For Console：
For the other types：
(3) Anti-freezing control to indoor evaporator in cooling mode
Evaporator Temp. Compressor
Console T2≤ 4℃ Off(After 3 minutes)
T2> 8℃ On
The other
types
T2≤ 3℃ Off(After 3 minutes)
T2> 7 ℃ On
(4) Sleep mode can be set by remote controller..
7.4.3 Dehumidifying mode
(1) Indoor fan speed is fixed in low speed and can’t be changed.
T1-24℃
4.0 High
3.0
Medium
1.0
Low
4
3
1
High
Medium
Low
℃
T1-TS
3.5
3.0
1.0
High
Medium
Low
℃
T1-TS
1.5
14
(2) In dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that of
cooling mode.
(3) Evaporator anti-freezing protection is active.
(4) Sleep mode is invalid.
7.4.4 Heating mode
(1) Indoor fan actions in heating mode
Indoor fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind function
prevails.
Anti-cold wind control function in heating mode:
For console：
E1=28℃ TE2=32℃ TE3=30℃ TE4=15℃ TE5=20℃
For the other types:
TE1=28℃ TE2=32℃ TE3=30℃ TE4=15℃
(2) Auto wind in heating mode
For Console:
For the other types
T2
TE2
TE3 Setting fan speed
TE1
TE5
TE4
Fan off
T2
TE2
Setting fan speed
TE3
TE1
Low
TE4
Fan off
T1-TS
℃
+2.5
Low fan
+2.0
Med. fan
+1.5
+1.0 High fan
Breeze
Low
15
(3) High evaporator coil temp.T2 protection:
Condition Compressor
T2<TE9 On
TE9<T2< TE7 Decrease frequency of compressor
T2>= TE7 Off
For console：TE7=60℃；TE9=48℃
For the other types: TE7=63℃；TE9=54℃
7.4.5 Prevent Over-Heating
For console: In heating mode, when the indoor unit has no capacity requirement due to indoor room
temperature increased, the Indoor fan will run in breeze. (Anti-cold wind function has the priority)
For ceiling& floor: In heating mode, when the indoor unit has no capacity requirement due to indoor room
temperature increased, the Indoor fan will run in low. (Anti-cold wind function has the priority)
For new four-way cassette (compact)&A5 duct: In heating mode, when the indoor unit has no capacity
requirement due to indoor room temperature increased, if outdoor fan and compressor stop, the Indoor fan
will run in setting fan speed, otherwise, the Indoor fan will run in low. (Anti-cold wind function has the priority)
7.4.6 Defrosting
Defrosting operation (Available for heating only).
Defrosting Actions:
a. Indoor fan switches off, anti-cold wind function is valid.
b. After defrosting ends, indoor fan runs according to anti-cold wind function in heating mode.
7.4.7 Auto-mode
This mode can be chosen by remote controller and the setting temperature can be changed between
17~30℃.
In auto mode, the machine will choose cooling, heating or fan-only mode according to the difference
between T1 and TS.
T1-TS Running mode
T1-TS＞1℃ Cooling
-1< T1-TS≤1℃ Fan-only
T1-TS≤-1℃ Heating
Indoor fan will run in auto fan of the relevant mode.
The louver operates the same as in relevant mode.
T1-TS
3°C Med. fan Low fan
2°C
1°C High fan
16
If the machine switches mode between heating and cooling, the compressor will keep stopping for 15
minutes and then rechoose mode according to T1-TS.
If the setting temperature is modified, the machine will rechoose running function.
7.4.8 Forced operation function
7.4.8.1 Enter forced operation function:
Press the touch button continually, the AC will run as below sequence:
Forced auto→Forced cooling→Off
When the machine is off, pressing the touch button will carry the machine to forced auto mode, after this, if
pressing the button once again, the machine will turn into forced cooling mode.
In forced cooling mode, pressing touch button will turn off the machine.
7.4.8.2 In forced operation mode, all general protections and remote control are available.
7.4.8.3 Operation rules:
Forced auto mode:
The action of forced auto mode is the same as normal auto mode with 24 ℃ se ttin g te m p e ra tu re
Forced cooling mode:
The indoor fan runs as low(for console, the indoor fan runs as breeze). After running for 30 minutes, AC will
turn to auto mode with 24 ℃ setting temperature.
7.4.8.4 When there’s indoor unit running in forced cooling, it is the master forced cooling unit. Other indoor
units will run at forced cooling mode too and they will be the slave forced cooling units. The slave forced
cooling units can not quit forced cooling mode until the master forced cooling unit quit, and turn to previous
operating mode.
7.4.8.5 The slave forced cooling units will not be controlled by other signals.
7.4.9 Timer Function
(1) Timing range is 24 hours, and the minimum resolution is 30 minutes.
(2) Timer on. After turning off, the machine will turn on automatically when reaching the setting time.
(3) Timer off. After turning on, the machine will turn off automatically when reaching the setting time.
(4) Timer on/off. After turning off, the machine will turn on automatically when reaching the setting “on”
time, and then turn off automatically when reaching the setting “off” time.
(5) Timer off/on. After turning on, the machine will turn off automatically when reaching the setting “off”
time, and then turn on automatically when reaching the setting “on” time.
(6) The setting time is relative time.
(7) The tolerance of timer is 1 minute per hour.
17
(8) The timer function will not change the AC current operation mode. Suppose AC is off now, it will not start
up firstly after setting the “timer off” function. And when reaching the setting time, the timer LED will be off
and the AC running mode has not been changed.
7.4.10 Sleep mode
(1) Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode and turns off.
(2) It is available at cooling, heating or auto mode.
(3) Operation process in sleep mode is as follow:
After pressing ECONOMIC or SLEEP button on controller, the machine will turn into sleep mode.
When cooling, the setting temperature rises 1℃(be lower than 30℃) every one hour, 2 hours later the
setting temperature stops rising and indoor fan is fixed as low speed.
When heating, the setting temperature decreases 1℃(be higher than 17℃) every one hour, 2 hours later the
setting temperature stops decreasing and indoor fan is fixed as low speed.(Anti-cold wind function has the
priority)
When Auto, the sleep mode running function operates in accordance with selected running mode by auto
mode.
(4)When user uses timer off function in sleep mode(or sleep function in timer off mode), if the timing time is
less than sleep time, sleep function will be cancelled when reaching the timing time. If the timing time is
more than sleep time, the machine will stop until reaches the sleep time.(Only for console)
(5)When sleep function is cancelled, the indoor unit will not stop except console.
7.4.11 Auto-Restart function
The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module. In
case of a sudden power failure, the module memorizes the setting conditions before the power failure. The
unit will resume the previous operation setting (not including Swing function) automatically after 3 minutes
when power returns.
If the memorization condition is forced cooling mode, the unit will turn off.
7.4.12 Mode conflict
The indoor units can not work cooling mode and heating at same time.
Heating mode has a priority.
(1) Definition
Cooling mode Heating Mode Fan Off
Cooling mode No Yes No No
Heating Mode Yes No Yes No
Fan No Yes No No
Off No No No No
No: No mode conflict;
Yes: Mode conflict
(2) Unit action
• In case of one Indoor unit working in cooling mode or fan mode, and another indoor unit is set to heating
18
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innovair VCM1320H21 Owner's manual
- Category
- Split-system air conditioners
- Type
- Owner's manual
- This manual is also suitable for
The innovair VCM1320H21 is a compact, 4-way cassette-type indoor unit designed for efficient and comfortable air conditioning in residential and commercial spaces. With its powerful cooling and heating capabilities, it ensures optimal temperature control all year round. The unit's fresh air intake function promotes healthier indoor air quality by introducing fresh air from outdoors, while the air passage function allows for additional air distribution to adjacent rooms.
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