TICA PRO TSCI120FHL User manual

Air to water heat pump
-split series
TIСA PRO LLC
141014, Russia, Moscow oblast, Mytishchi,
Very Voloshinoy Ulitsa, office 705 and 805
Tel.: [phone]
E-mail: [email protected]
www.tica.ru
INSTALLATION &
OPERATION MANUAL

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
Contents
Contents.......................................................................................................... 1
I. Check List..................................................................................................... 1
II. Must-read for Users.................................................................................... 2
III. Product Overview...................................................................................... 4
1. Overview...................................................................................................... 4
2. Outside View and Structure ...................................................................... 4
3. Specifications............................................................................................11
4. System Scheme........................................................................................ 15
5. Features..................................................................................................... 16
IV. Unit Installation........................................................................................ 17
1. Use instructions for air side products................................................... 17
2. Unit Installation and Connection Diagram ............................................ 18
3. Pre-check......................................................................................................................19
4. Place of Installation.................................................................................. 21
5. ODU Installation........................................................................................ 24
6. IDU Installation ......................................................................................... 26
7. Refrigerant Pipeline Connection ............................................................ 28
8. Installation of the Water System............................................................. 33
9. Electrical Installation ............................................................................... 40
10. Trial operation......................................................................................... 47
V. Operation and Use of Wired Controller ................................................. 48
1. Screen description................................................................................... 49
2. Interface Function .................................................................................... 50
VI. Repair and Maintenance......................................................................... 52
VII. Common Faults...................................................................................... 55
VIII. After-sales Service................................................................................ 58
IX. Names and Content of Hazardous Substances in Products.............. 59

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
1
I. Check List
Inspect the following items against the list after unpacking the product, and make sure that the IDU and
ODU comply with the information on the nameplates. For any queries, consult your local distributor or
call TICA hotline.
No.
Name
Qty
Instruction for Use
Applicable model
Remarks
1
ODU
1 set
/
/
/
2
IDU
1 set
/
/
3
Connecting copper
pipe
1
Connected to check valve of refrigerant gas
pipe for ODU
All models
For ODU
4
Qualification
certificate
1
/
All models
5
Warranty card
1
For unit warranty
All models
6
Installation &
Operation Manual
1
To guide unit installation and use
All models
For IDU
7
Qualification
certificate
1
/
All models
8
Drainage pipe
1
Connected to condensate water drainage outlet
of IDU
Wall-mounted units
9
Pipe clamp
2
To fix the drainage pipe of IDU
10
Mounting panel
1
To facilitate IDU installation
11
Heat insulation pipe
1
For insulating discharge valve of IDU
12
Nut
2
To connect refrigerant gas/liquid pipe of IDU
All models
13
Terminal block
6
To connect to the power cords of IDU and ODU
All models
14
Air discharge valve
1
For indoor heat exchanger discharge
All models
15
Hose
1
To connect discharge valve of IDU
Ceiling-mounted
units
16
Wired controller
1
For powering on/off the unit
17
Communication line
1
For connecting IDU and wired controller
18
Safety valve
1
To facilitate IDU external pipeline installation
Note: Models involved
Wall-mounted IDUs
TSCI120/140/160FHL
TSCI120/140/160FHLN
Ceiling-mounted IDUs
TSCI120/140/160/180/200FHLD
TSCI120/140/160/180/200FHLDN
ODUs
TSCA120/140/160/180/200FHL

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
2
II. Must-read for Users
Read the Installation & Operation Manual thoroughly before installing and using the equipment and keep
it for future reference.
● Only TICA authorized personnel can install TICA inverter type household air source heat pump chiller
(heat pump). The installation must comply with the requirements of the company. TICA assumes no
liabilities for losses arising from improper operations, including but not limited to pipe leakage, electric
leakage and adverse effect or damages on the equipment.
● Reserve enough space for equipment installation strictly in accordance with the Manual. Otherwise,
the heat exchange effect may be compromised.
● Install a residual current device between the power supply and the equipment.
● When the equipment is available for commissioning upon installation, call TICA's hotline to request
equipment commissioning service. The equipment is usable only after a commissioning test is done.
TICAassumes no liabilities for any losses arising from unauthorized access to the equipment.
● The equipment shall undergo regular maintenance and servicing after it is installed. In case of an
abnormality, stop using it immediately and call TICA's hotline to report such event.
● Do not put your finger or other objects into a running equipment as it may cause personal injuries.
● If any parts are soaked in water, contact TICA's personnel to check or repair it before use again.
● Never drink or use the water in the unit for daily lives.
● All the circuits must be dedicated. The IDU and ODU must be reliably grounded.
● Contact a qualified electrician to check electricity meter, circuit breaker and wire diameter to make sure
that they meet the maximum operating current requirement.
● If the ambient temperature is lower than 5°C and a power failure occurs, be sure to thoroughly drain
water from the unit and pipeline. If the ambient temperature is lower than 5°C and the water system is
fully filled with water, ensure that the unit is in the power-up state, and the chilled water circulating pump
of the air conditioner is interlocked with the modular chiller. In this way, the modular unit can
automatically control the water pump operation or heating operation, thereby implementing automatic
anti-freezing protection of the air conditioning water system. The purpose is to protect facilities such as
the unit and water pipeline against damage caused by freezing of water in the pipeline of the air
conditioning water system. When the unit is energized, the unit may consume a certain amount of
electricity to prevent it from freezing.
● If the ambient temperature is higher than 5°C, especially in summer, do not drain water to prevent air
from flowing into the pipeline and causing internal rust and corrosion, and ensure normal water pressure
of the system. Check the water quality before you turn on the unit next time. If the water quality is bad,
replace the water and clean the filter.
● TICA assumes no liabilities for any losses arising from commissioning, maintenance or servicing by
unauthorized personnel or from using the equipment other than the purposes contained within this

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
3
Manual.
● If the power cord is damaged, to avoid dangers, make sure to ask a professional from the
manufacturer or its maintenance department or similar department to replace it.
● Nanjing TICA Climate Solutions Co., Ltd. reserves the right to interpret this Manual.
Warning: The power supply of this equipment must be reliably grounded before
use. Within close proximity of the inverter type household air source heat pump
chiller (heat pump), there must be a well-functioning floor drain. In addition, water
leakage of the unit or from the joints in the unit installation area shall not do any
harm to adjacent items or the bottom floor of the building.
Warning: Never use refrigerant to discharge the gas in the IDU and within the pipe
connecting the IDU and ODU. Use the vacuum pump for vacuumizing instead.
Caution: Failure to observe this Manual may cause fire, losses, personal injury or
even be fatal.

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
4
III. Product Overview
1. Overview
The inverter type household air source heat pump chiller (heat pump) consists of IDUs and ODUs. The
IDUs and ODUs are connected through refrigerant pipelines. The inlet and outlet of IDU water pipes are
connected to the air side products. In this way, the unit is able to offer hot/cold water to each air side
product, which could facilitate heat exchange in the room and therefore heat/cool the room. It generally
uses FCU for cooling and FCU, floor heating or radiator for heating. It is not recommended to use two
different types of air side products for heating in the same system, considering the different water
temperatures and resistances used at different air side products.
2. Outside View and Structure
(1) Outside view
1) ODU Outline Drawing
(1) TSCA120FHL/TSCA140FHL/TSCA160FHL
φ12

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
5
（2）TSCA180FHL/TSCA200FHL
980
1242
1260
466
390
420
625
430
200
2-12*20
212
2) IDU Outline Drawing
(1) TSCI120FHL/TSCI140FHL/TSCI160FHL/TSCI120FHLN/TSCI140FHLN/TSCI160FHLN

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
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（2）TSCI120FHLD/TSCI140FHLD/TSCI160FHLD/TSCI180FHLD/TSCI200FHLD
TSCI120FHLDN/TSCI140FHLDN/TSCI160FHLDN/TSCI180FHLDN/TSCI200FHLDN
500
424
1038
1000
220
9057
83
183
94
55
70

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
7
(2) Structure of ODU
1) TSCA120FHL/TSCA140FHL/TSCA160FHL
1) Upper cover 2) Heat exchanger 3) Main control board 4) Economizer
5) Gas-liquid separator 6) Right rear panel 7) Electronic expansion valve for cooling
8) Electronic expansion valve for heating 9) Air suction electronic expansion valve
10) Gas check valve 11) Liquid check valve 12) Compressor
13) Power cord terminal block 14) Front panel 15) Grille 16) Oil separator
17) Electric control box assembly
2）TSCA180FHL/TSCA200FHL
1）Upper cover 2）Oil separator 3）Rear panel 4）Plate heat exchanger 5）Gas-liquid separator

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
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6）Electronic expansion valve for cooling 7）Electronic expansion valve for heating
8）Air suction electronic expansion valve 9）Gas check valve 10）Liquid check valve
11）Compressor 12）Front panel 13）Power cord terminal block
14）Electric control box assembly 15) Grille 16）Panel 17）Rear column
(3) Structure of IDU
1) TSCI120FHL/TSCI140FHL/TSCI160FHL
比 例
1) Expansion tank 2) Automatic air discharge valve
3) Shell-and-tube heat exchanger 4) Water pump 5) Safety valve
6) Drain pipe adapter 7) Refrigerant liquid pipe connector
8) Refrigerant gas pipe connector 9) Inlet water pipe connector
10) Outlet water pipe connector 11) Drainage pan 12) Wired controller
13) Water flow switch 14) Electric control box assembly

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
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2) TSCI120FHLN/TSCI140FHLN/TSCI160FHLN
1) Expansion tank 2) Automatic air discharge valve
3) Shell-and-tube heat exchanger 4) Safety valve 5) Drain pipe adapter
6) Refrigerant liquid pipe connector 7) Refrigerant gas pipe connector
8) Inlet water pipe connector 9) Outlet water pipe connector 10) Drainage pan
11) Wired controller 12) Water flow switch 13) Electric control box assembly
3）TSCI120FHLD/TSCI140FHLD/TSCI160FHLD/TSCI180FHLD/TSCI200FHLD
1) Expansion tank 2) Manual air discharge valve
3) Shell-and-tube heat exchanger 4) Safety valve
5) Refrigerant liquid pipe connector 6) Refrigerant gas pipe connector
7) Drain pipe adapter 8) Inlet water pipe connector 9) Outlet water pipe connector
10) Water flow switch 11) Electric control box assembly 12) Water pump

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
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4）TSCI120FHLDN/TSCI140FHLDN/TSCI160FHLDN/TSCI180FHLDN/TSCI200FHLDN
1) Expansion tank 2) Manual air discharge valve
3) Shell-and-tube heat exchanger 4) Electric control box assembly
5) Safety valve 6) Drain pipe adapter 7) Refrigerant liquid pipe joint
8) Refrigerant gas pipe joint 9) Water inlet pipe joint 10) Water outlet pipe joint
11) Water flow switch

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
11
3. Specifications
Wall-mounted
Entire unit
TSCA/I120FHL
TSCA/I140FHL
TSCA/I160FHL
ODU
TSCA120FHL
TSCA140FHL
TSCA160FHL
IDU
TSCI120FHL
TSCI140FHL
TSCI160FHL
Heating
capacity 1
Nominal heating
capacity (kW)
12.50
14.20
16.00
Rated power input
(kW)
3.20
3.74
4.26
COPh(kW/kW)
3.91
3.80
3.76
Heating
capacity 2
Nominal heating
capacity (kW)
11.50
14.00
15.80
Rated power input
(kW)
3.32
4.36
5.02
COPh(kW/kW)
3.46
3.21
3.15
Cooling
capacity 1
Nominal cooling
capacity (kW)
12.00
13.50
14.50
Rated power input
(kW)
4.24
5.01
5.56
EER
2.83
2.69
2.61
Cooling
capacity 2
Nominal cooling
capacity (kW)
12.00
13.50
14.50
Rated power input
(kW)
2.80
3.35
3.82
EER
4.29
4.03
3.80
Seasonal space
heating energy
efficiency class
LWT at 35℃
A+++
A+++
A+++
LWT at 55℃
A++
A++
A++
SCOP
LWT at 35℃
4.65
4.60
4.52
LWT at 55℃
3.45
3.40
3.31
Circulating water flow (m3/h)
2.06
2.41
2.75
Pump type
Variable frequency canned pump (Optional)
Power supply
220-240V ~50Hz
220-240V ~50Hz
220-240V ~50Hz
Maximum total
power (kW)
ODU
7.00
7.00
7.00
IDU
0.30
0.30
0.30
Maximum
operating
current (A)
ODU
35.0
35.0
35.0
IDU
1.36
1.36
1.36
Applicable
ambient
temperature
(°C)
Cooling
-15~55
-15~55
-15~55
Heating
-25~48
-25~48
-25~48

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
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Maximum permissible pressure on
high pressure side (MPa)
4.2
4.2
4.2
Maximum permissible pressure on
low pressure side (MPa)
3.0
3.0
3.0
Maximum operating pressure of
water system (MPa)
0.5
0.5
0.5
Refrigerant/Charge quantity
R410A/3.05kg
R410A/3.05kg
R410A/3.05kg
Sound power level（dB(A)）ODU
67
69
70
Sound power level（dB(A)）IDU
45
45
45
Unit external lift (mH2O)
9.5
8.0
6.5
IP rating
ODU
IPX4, and applies to
outdoor applications
IPX4, and applies
to outdoor
applications
IPX4, and applies to
outdoor applications
Refrigerant
pipeline
connection
Gas/liquid pipe
diameter (mm)
φ19.05/φ9.52
φ19.05/φ9.52
φ19.05/φ9.52
Connection mode
Pipe socket
Circulating
water pipe
connection
Water inlet/outlet
pipe diameter
DN32
DN32
DN32
Connection mode
External thread (R 1-1/4’)
Net weight (kg)
ODU
96
96
96
IDU
53
53
53
Wall-mounted
Without water
pump
Entire unit
TSCA/I120FHLN
TSCA/I140FHLN
TSCA/I160FHLN
ODU
TSCA120FHL
TSCA140FHL
TSCA160FHL
IDU
TSCI120FHLN
TSCI140FHLN
TSCI160FHLN
Heating
capacity 1
Nominal heating
capacity (kW)
12.50
14.20
16.00
Rated power input
(kW)
3.20
3.74
4.26
COPh(kW/kW)
3.91
3.80
3.76
Heating
capacity 2
Nominal heating
capacity (kW)
11.50
14.00
15.80
Rated power input
(kW)
3.32
4.36
5.02
COPh(kW/kW)
3.46
3.21
3.15
Cooling
capacity 1
Nominal cooling
capacity (kW)
12.00
13.50
14.50
Rated power input
(kW)
4.24
5.01
5.56
EER
2.83
2.69
2.61

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
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Cooling
capacity 2
Nominal cooling
capacity (kW)
12.00
13.50
14.50
Rated power input
(kW)
2.80
3.35
3.82
EER
4.29
4.03
3.80
Seasonal space
heating energy
efficiency class
LWT at 35℃
A+++
A+++
A+++
LWT at 55℃
A++
A++
A++
SCOP
LWT at 35℃
4.65
4.60
4.52
LWT at 55℃
3.45
3.40
3.31
Circulating water flow (m3/h)
2.06
2.41
2.75
Pump type
Variable frequency canned pump(Optional)
Power supply
220-240V ~50Hz
220-240V ~50Hz
220-240V ~50Hz
Maximum total
power (kW)
ODU
7.00
7.00
7.00
IDU
0.30
0.30
0.30
Maximum
operating
current (A)
ODU
35.0
35.0
35.0
IDU
1.36
1.36
1.36
Applicable
ambient
temperature
(°C)
Cooling
-15~55
-15~55
-15~55
Heating
-25~48
-25~48
-25~48
Maximum permissible pressure on
high pressure side (MPa)
4.2
4.2
4.2
Maximum permissible pressure on
low pressure side (MPa)
3.0
3.0
3.0
Maximum operating pressure of
water system (MPa)
0.5
0.5
0.5
Refrigerant/Charge quantity
R410A/3.05kg
R410A/3.05kg
R410A/3.05kg
Sound power level（dB(A)）ODU
67
69
70
Sound power level（dB(A)）IDU
45
45
45
Unit external lift (mH2O)
9.7
8.5
7.5
IP rating
ODU
IPX4, and applies to
outdoor applications
IPX4, and applies
to outdoor
applications
IPX4, and applies to
outdoor applications
Refrigerant
pipeline
connection
Gas/liquid pipe
diameter (mm)
φ19.05/φ9.52
φ19.05/φ9.52
φ19.05/φ9.52
Connection mode
Pipe socket
Circulating
water pipe
connection
Water inlet/outlet
pipe diameter
DN32
DN32
DN32
Connection mode
External thread (R 1-1/4’)
Net weight (kg)
ODU
96
96
96

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
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IDU
53
53
53
Ceiling
Entire unit
TSCA/I120
FHLD
TSCA/I140
FHLD
TSCA/I160
FHLD
TSCA/I180
FHLD
TSCA/I200
FHLD
ODU
TSCA120
FHL
TSCA140
FHL
TSCA160
FHL
TSCA180
FHL
TSCA200
FHL
IDU
TSCI120
FHLD
TSCI140
FHLD
TSCI160
FHLD
TSCI180
FHLD
TSCI200F
HLD
Heating capacity 1
Nominal heating
capacity (kW)
12.5
14.2
16
18.5
21
Rated power input
(kW)
3.2
3.74
4.26
4.31
5.07
COPh(kW/kW)
3.91
3.8
3.76
4.29
4.14
Heating capacity 2
Nominal heating
capacity (kW)
11.5
14
15.8
19
21.0
Rated power input
(kW)
3.32
4.36
5.02
6.07
6.82
COPh(kW/kW)
3.46
3.21
3.15
3.13
3.08
Cooling capacity 1
Nominal cooling
capacity (kW)
12
13.5
14.5
17.5
19.5
Rated power input
(kW)
4.24
5.01
5.56
6.22
7.29
EER
2.83
2.69
2.61
2.81
2.67
Cooling capacity 2
Nominal cooling
capacity (kW)
12
13.5
14.5
18.5
22.0
Rated power input
(kW)
2.8
3.35
3.82
4.86
5.94
EER
4.29
4.03
3.80
3.81
3.70
Seasonal space
heating energy
efficiency class
LWT at 35℃
A+++
A+++
A+++
-
-
LWT at 55℃
A++
A++
A++
-
-
SCOP
LWT at 35℃
4.65
4.6
4.52
4.71
4.66
LWT at 55℃
3.45
3.4
3.31
3.58
3.53
Circulating water flow (m3/h)
2.06
2.41
2.75
3.10
3.44
Pump type
Variable frequency canned pump (Optional)
Power supply
ODU
220-240V
~50Hz
220-240V
~50Hz
220-240V
~50Hz
380-415V
~50Hz
380-415V
~50Hz
IDU
220-240V
~50Hz
220-240V
~50Hz
220-240V
~50Hz
220-240V
~50Hz
220-240V
~50Hz
Maximum total
ODU
7
7
7
8
8

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
15
power (kW)
IDU
0.3
0.3
0.3
0.3
0.3
Maximum operating
current (A)
ODU
35
35
35
15
15
IDU
1.36
1.36
1.36
1.36
1.36
Applicable ambient
temperature (°C)
Cooling
-15~55
-15~55
-15~55
-15~55
-15~55
Heating
-25~48
-25~48
-25~48
-25~48
-25~48
Maximum permissible pressure on high
pressure side (MPa)
4.2
4.2
4.2
4.2
4.2
Maximum permissible pressure on low
pressure side (MPa)
3.0
3.0
3.0
3.0
3.0
Maximum operating pressure of water system
(MPa)
0.5
0.5
0.5
0.5
0.5
Refrigerant/Charge quantity
R410A/3.0
5kg
R410A/3.0
5kg
R410A/3.0
5kg
R410A/4.4
0kg
R410A/4.4
0kg
Sound power level（dB(A)）ODU
67
69
70
71
71
Sound power level（dB(A)）IDU
45
45
45
45
45
Unit external lift (mH2O)
9.7
8.5
7.5
5.5
4
IP rating
ODU
IPX4, and
applies to
outdoor
application
s
IPX4, and
applies to
outdoor
application
s
IPX4, and
applies to
outdoor
application
s
IPX4, and
applies to
outdoor
application
s
IPX4, and
applies to
outdoor
application
s
Refrigerant pipeline
connection
Gas/liquid pipe
diameter (mm)
φ19.05/φ9.
52
φ19.05/φ9.
52
φ19.05/φ9.
52
φ19.05/φ9.
52
φ19.05/φ9.
52
Connection mode
Pipe socket
Circulating water
pipe connection
Water inlet/outlet pipe
diameter
DN32
DN32
DN32
DN32
Connection mode
External thread (R 1-1/4’)
Net weight (kg)
ODU
96
96
96
115
115
IDU
53
53
53
53
53
Notes: 1) Heating capacity 1: Outdoor air temperature 7⁰C DB, 85% R.H.; EWT 30⁰C, LWT 35⁰C
Heating capacity 2: Outdoor air temperature 7⁰C DB, 85% R.H.; EWT 40⁰C, LWT 45⁰C.
cooling capacity1：Outdoor air temperature 35⁰C DB; EWT 12⁰C, LWT 7⁰C.
cooling capacity2：Outdoor air temperature 35⁰C DB; EWT 23⁰C, LWT 18⁰C.
2) Due to the continuous improvement and innovation of TICA products, the product models, parameters and
performance in this document are subject to changes without prior notice. The parameters indicated on the
nameplate should prevail.
3) Please refer to the maximum total power and maximum operating current during power distribution.
4) The ODU has been charged with refrigerant.
4. System Scheme
The system scheme for this unit is provided below:

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
16
Indoor side
Water
outlet
Return
water
Water
pump
Electric energy
W
Compressor
Refrigerant
circulation
Expansion
valve
Absorb heatfrom
surroundings Qc
Outdoor side
Water-side heat
exchanger
(Condenser)
Air-side heat exchanger
(Evaporator)
5. Features
(1) Powerful cooling/heating
By utilizing the EVI (Enhanced Vapour Injection) compressor, the unit is able to cool/heat the room
via three electronic expansion valves and overcome the problems of great attenuation for traditional
air source heat pump units at a low/high ambient temperature, thus greatly improving the
heating/cooling capacity under extreme temperatures.
(2) Power failure memory function
The wired controller can automatically store the unit status (ON/OFF) each time before the inverter
type household air source heat pump chiller (heat pump) is powered off. When the unit is powered
on again, the wired controller sends power-on/off signal to the unit according to the stored status
before power-off, to ensure that the unit could operate as previously set.
(3) Multi-grade anti-freezing protection
At low ambient temperatures, in particular, when the ambient temperature is below 0°C, the water
system of the inverter type household air source heat pump chiller (heat pump) will most likely fail to
work properly due to frozen water pipes. By utilizing TICA's unique multi-grade anti-freezing
technology, our inverter type household air source heat pump chiller (heat pump) could determine
when to enter or exit anti-freezing protection depending on the ambient conditions, and therefore
guarantee steady operation of the unit to the greatest extent.
(4) Intelligent defrosting
In conditions with low ambient temperature and high relative humidity, the heating capability of the
unit will decrease with the accumulation of frost on the surface of the fin. To address this issue, the
unit adopts a control system to implement fast auto defrosting.
(5) Auxiliary heat source
In places where the ambient temperature is very low, an auxiliary heat source that could provide
certain heating capacity should be equipped to improve the heating capacity of the system and
ensure normal and reliable heating.
Regardless of the auxiliary heat source used, the unit provides one control signal that tells the
peripheral equipment to turn the auxiliary heat source on or off. The auxiliary heat source requires
additional independent control and separate configuration of the corresponding safety protection
functions.

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
17
IV. Unit Installation
1. Use instructions for air side products
The unit consists of IDU, ODU and air side products (selected based on actual conditions). The air side
product for cooling can be a FCU; The air side product for heating can be a floor heating, FCU or radiator.
It is recommended to use floor heating as it requires lower water temperature while running with higher
efficiency. If using radiator as the air side product for heating, use steel radiator. Steel radiator is also a
good fit for the inverter type household air source heat pump chiller (heat pump) as it features abundant
volume of water capacity and reduced heat losses at a low water temperature.
When selecting the model of an air side product, note to calculate the load of it in light of local design
standard. If the model is inappropriate, the inverter type household air source heat pump chiller (heat
pump) may be faulty or fail to provide adequate cooling/heating capacity.
If floor heating is used, observe relevant national standard or local standard on floor heating layout.
If FCU is used as an air side products for cooling/heating, consult your manufacturer on selecting
appropriate models and on installation.
If radiator is used as an air side product for heating, consult your manufacturer on selecting appropriate
models and on installation.
Taking into consideration of the unit features and to ensure reliable operation of the unit, the water outlet
temperature of the unit is lower than that of the boiler when the unit operates in winter. Therefore, if
radiator is used, add enough number of radiators to maintain the temperature in an acceptable range.
The number of radiators to be added depends on the attenuation coefficient of radiator. The user can
also consult the radiator manufacturer on the number to be added.
The air side products of this unit should meet the system cool/heat load, water pressure, water
resistance and water quality among other requirements.
Installation of the air side product shall comply with relevant standard or requirement of the
manufacturer.
Notes:* Upon receiving the unit, check whether the unit model is correct,
accessories complete and the appearances of the unit intact. If you find
any damages or you have other problems, please immediately call TICA’s
hotline [phone].
* Before installation, make sure that the unit power is consistent with its
electricity meter capacity and power cords.
* The unit must be reliably grounded. Never connect the earth line to the neutral
line or to the pipes.

Installation Manual of Inverter Type Household Air Source Heat Pump Chiller (Heat Pump)
18
2. Unit Installation and Connection Diagram
Automatic water
supply valve
Drain
valve
Water
inlet
P
Gate valve Filter
... Floor heating
module n
Floor heating
module 2
Floor heating
module 1
Drain
valve Gate
valve
Expansion tank
(optional) Pressure
gauge and
thermometer
(optional) Check
valve Manual ball
valve Water purifying or
demineralized
water treatment
device (optional)
Differential
pressure
bypass valve
External
water pump
(optional)
Energy storage
tank (optional)
Water
collector/separator
Three-way
valve
Gate valve
Electric
two-way
valve
Electric
two-way
valve
Gate
valve
Gate
valve
Gate valve
Electric
two-way
valve
Gate
valve
FCU 1 FCU 2 FCU n
...
Air discharge
valve
TICA
Gate
valve
Flexible
connector Drainage
pipe of unit
Refrigerant
gas pipe
Refrigerant
liquid pipe
Diagram of combined FCU and floor heating
Note: 1) In FCU cooling mode, the FCU should be connected for cooling; while in FCU heating mode,
floor heating mode and floor heating preservation mode, the FCU, floor heating and radiators
should be connected for heating. It is not recommended to use two different types of air side
products for heating in the same system, considering the different water temperature and
resistance used at different air side products.
2) Except the chillers (IDU and ODU), the user needs to prepare the air side products, connecting
pipes and pipe fittings.
3) Decide whether the external water pump, energy storage tank, expansion tank, water purifying
or demineralized water treatment device, pressure gauge, thermometer, and differential
pressure bypass valve shown in the figures are needed according to the actual use conditions
of the water system. If the model does not have internal water pump, be sure to provide an
external water pump to ensure normal operation of the system. Provide other components
based on the circumstances.
4) The air discharge valve needs to be installed at the highest position of the water system; the
water drain valve needs to be installed at the lowest position of the water system. The air
discharge valve should be installed where air discharge is unobstructed. It should avoid
furniture and interior decoration, lest water leakage of air discharge valve damage the furniture
or interior decoration.
5) After the air side product system is debugged, do not adjust the pipeline system valve without
permission; otherwise the unit may fail to operate normally or be damaged.
6) The unit provides three-way valve control signal to realize water system switching between
cooling and heating.
Note: For an air side product, an electric two-way valve is recommended together with a
differential pressure bypass valve. The differential pressure bypass valve must ensure the
minimum water flow in the unit when only few FCUs are opened or all FCUs are closed. The
purpose is to prevent an excessive number of closed 2-way valves under partial load
operating conditions. Otherwise, the water resistance is too large, the pump is overloaded
and damaged, the water flow fails, and the unit cannot work properly.