TESLA TGSS-48HVI3 Floor Standing Outdoor Unit User Manual

FLOOR STANDING OUTDOOR UNIT

USER MANUAL
For Outdoor unit models:
TGSS-48HVI3
TGSS-60HVI3
Ver. 2023

OPERATING INSTRUCTION

Note: All the pictures in this manual are just schematic diagrams, the actual is the standard. Please read this owner’s manual carefully and thoroughly before operating the unit! Take care of this manual for future reference.

Safety Precaution

WARNING

• This air conditioner is a comfortable unit. Don’t use it in some special places for machine rooms, precise instruments, foods, plants, animals, artworks, etc.

  • The installation shall be done by the distributor or the professional staff. The installation staff must have related professional knowledge.
    Misoperation in the self-installation will result in fire, electric shock, injury, water leak, etc.

  • If the air conditioner is installed in a small room, some proper measures shall be taken to make sure that the concentration of refrigerant leak in the room shall not exceed the critical level. For detailed measures, please consult the distributor.

  • When connecting the power supply, comply with the regulations specified by the local power company. According to the law, the ground wire must be connected. The misconnection of the ground wire will result in electric shock.

  • If the air conditioner needs to be moved or reinstalled, please inform the distributor or the professional staff to operate. Incorrect installation will result in fire, electric shock, injury, water leak, etc.

  • The users are not permitted to rebuild or repair the air conditioner by their own. Incorrect repair will result in fire, electric shock, injury, water leak, etc.. Please inform the distributor or the professional staff to repair.

NOTE

• Make sure the water drainage ditch is useable.
• Make sure a current leakage protection switch is equipped. The current leakage protection switch must be equipped. If not, an electric shock will take place.
• It mustn’t be installed in any potential leakage location of inflammable gas. In case of the inflammable gas leak around the outdoor unit, a fire takes place.
• Make sure the foundation and hoisting are firm and reliable. If not, it will result in a falling accident.
• Make sure all cables are correctly connected. The misconnection of the cables will result in the damage of electrical components.
• Pre-installation exposure to water or other moistures will result in short circuit of its electrical components.. Don’t store it in any damp cellar or expose it to rain or water.
• In case of the refrigerant leaks during installation, the room must be ventilated at once. If the leaked refrigerant is exposed to flame, some toxic gases will be generated.
• After installation, make sure the refrigerant is not leaked.
• If the refrigerant gas in the room is exposed to flame source, such as a heater, a stove or an electric cooker, some toxic gases will be generated..
• A lightning protection device must be equipped according to national laws and regulations against the lightning strike.

Key Points for Construction Inspection

1. Arrival of goods and open-case inspection

1. When receiving the machine, check if there is any damage in transportation. If any surface or internal damage is found, please inform the transportation agency in a written form.
2. After receiving the machine, check if the type, specification and quantity of the machine conform to the contract.
3. When unpacking the product, please keep the Manual well and check all accessories.

2. Refrigerant pipe

1. The refrigerant pipe must be installed by the special refrigerant distributor made by our company (purchase).
2. The refrigerant pipe must use the pipe with specified diameter and wall thickness.
3. The welding of the copper pipe must be performed with nitrogen-filled protection. Before welding, the copper pipe must be filled with the nitrogen of 2 0.2kgf/cm . After welding, the nitrogen must be cut off until the copper pipe is thoroughly cooled down.
4. The refrigerant pipe must be treated with thermal insulation.
5. After the refrigerant pipe is installed and before the air tightness test and vacuumization are performed, the indoor unit cannot be power-on.

3. Air tightness test
   After the refrigerant pipe is installed, nitrogen of 40kgf/cm (4.0MPa) must be filled from the gas side and liquid side simultaneously for 24-hour air tightness test.

4. Vacuumizing
   After the air tightness test, vacuumization (-0.1MPa) must be performed from both the gas side and the liquid side simultaneously.

5. Refilling of refrigerant

1. The refilling volume of refrigerant is calculated by the diameter and length (actual length) of the pipe at the liquid sides of the indoor and outdoor units.
2. The refilling volume of refrigerant, diameter and length (actual length) of liquid pipe, and height difference of the indoor and outdoor units shall be recorded into the use confirmation table of the outdoor unit (on the cover plate of electronic control box) for future reference.

6. Electrical wiring

1. The power supply capacity and wire diameter shall be selected according to the design manual. Generally, the power line of the air conditioner is thicker than that of the motor.
2. To prevent misoperation of the air-conditioner, don’t interlace or wind the power line (220-240V-/380V 3N-) with the connecting wires (low-voltage wires) of the indoor and outdoor units.
3. The indoor unit is power-on after air tightness test and vacuumization.

7. Trial Run

1. Trial run cannot be performed until the outdoor unit is power-on for more than 12 hours, or the system may be damaged.

Installation of Outdoor Unit

WARNING

• The air conditioner must be installed in the place, which is strong enough to support the weight of the machine.
• If it is not strong enough, the machine may fall down and cause some personal injury.
• The special installation must be performed against strong wind or earthquake.
• The falling-down because of incorrect installation may cause some accidents.

3.1Selection of installation position

1. Enough space for installation and maintenance.
2. No barrier at the air inlet and the air outlet and away from strong wind.
3. Dry and ventilated.
4. The flat supporting surface is able to bear the weight of the outdoor unit. The outdoor unit shall be horizontally installed, without any noise or vibration.
5. Neighbors shall not be influenced by running noise and exhaust gas.
6. Without inflammable gas leak;
7. Convenient for installation of connecting pipe and electrical connection.

3.2Dimensional drawing of outdoor unit (Unit: mm)

1. Fig.3-1 is applicable for models of 12.5kW(200V-220V),14kW,16kW.
   

2. Fig.3-2 is applicable for models of 10kW,12.5kW(380V-415V)
   

3. Fig.3-3 is applicable for models of 8kW
   

3.3Hoisting of outdoor unit

1. Don’t remove any package upon hoisting. Two ropes (more than 8cm) shall be used to hoist the well-packaged machine stably and safely. If there is no package or the packaging material is broken, use some backing plates or packaging materials to protect  the machine.
2. The outdoor unit shall be carried and hoisted vertically, within an inclination of less than 15 degrees. Care should be taken to safety during carrying and hoisting the machine.
3. The gravity of the machine is not in the center, so be careful to hoist the machine.
4. Don’t hold the suction inlet of the housing, or it will be deformed.

3.4Installation and maintenance space of outdoor unit

1. Provide a firm and adequate foundation to:
   ① Prevent the outdoor unit from being sunken;
   ② Prevent the outdoor unit from abnormal noise.

2. Foundation types
   ① Steel structure
   ② Concrete structure (Common practice is shown in the Fig. below)
   

3.5 Position and installation of outlet pipe

1. These models of CHV-DH080W/R1, CHV-DH100W/R1, CHV-DH125W/R1, CHV-DH140W/R1 CHV-DH160W/R1,GCHV-D125W/HZR1-, D01,GCHV-140W/HZR1-F01 GCHV-160W/HZR1-F01 directly use the external globe valves to take over. and

Installation of Connecting Pipe

4.1 Refrigerant pipe

1. Flaring
   Use a pipe cutter to cut the refrigerant pipe and a pipe expander to flare
   Table 4-1 Flaring Dimension of Connecting Pipe
   **** Outer
   Diameter
   (mm)| A(mm)|
   ---|---|---
   Maximum| Minimum
   φ6.35| 8.7| 8.3
   Φ9.52| 12.4| 12
   Φ12.7| 15.8| 15.4
   Φ15.88| 19| 18.6

2. Fastening nut
   Align the connecting pipe, tighten it by hand, and then by a wrench.

Table 4-2 Tightening Torque

NOTE

• To prevent the copper pipe from internal oxidation upon welding, the copper pipe shall be filled with nitrogen. Otherwise, the oxide skin will block the refrigeration system!
• When fastening the nut, too strong force will damage the flared socket, but too weak force will result in leakage. Please refer to the tightening torque in the table above to fasten the nuts!

4.2 Set refrigerant pipe dimension and pipe connecting steps

Table 4-3 Definition of Pipe

and indirectly connected to
the indoor unit| L L2 5~
Branch pipe of indoor unit| Pipe behind the distributor and directly connected to the indoor unit| A,b,c,d,e,f
Distributor components of
indoor unit| Pipe components to connect the main pipe, main branch pipe and branch pipe| A,B,C,D,E

1. Connecting mode I
   

2. Connecting mode II
   

NOTE

• All distributors must use our company’s special distributors. Otherwise, it may cause severe faults of the system!
• The indoor unit shall be equally installed on both sides of the U-type distributor.

4.3 Determination of main pipe (L1) diameter

Table 4-4 Diameter of Main Pipe

Dimension of Main Pipe (mm)
L ＜30m 1| L ≥30m 1| First distributor
Liquid pipe| Gas pipe| Liquid pipe| Gas pipe
8| Φ9.52| Φ15.88| Φ9.52| Φ19.05| SP-FQG-N01D
10| Φ9.52| Φ15.88| Φ9.52| Φ19.05| SP-FQG-N01D
12.5/14/16| Φ9.52| Φ15.88| Φ9.52| Φ19.05| SP-FQG-N01D

4.4 Determination of main pipe (L -L ) diameter 2 5

Table 4-5 Diameter of Pipe

Capacity of Downstream Indoor
Unit (kW)| Length of Downstream Equivalent Pipe
---|---
Dimension of main pipe of indoor unit| Applicable to distributor
Liquid pipe| Gas pipe
W＜6.5| Φ9.52| Φ12.7| SP-FQG-N01D
6.5≤W＜18| Φ9.52| Φ15.88| SP-FQG-N01D
18≤W＜22| Φ9.52| Φ19.05| SP-FQG-N01D

4.5 Allowable length and height difference of the refrigerant pipe

1. Connecting mode 1
   

2. Connecting mode II
   

Table 4-6 Diameter of Pipe

+f(connecting mode I)  L1 +L3 +L 5+f(connecting mode II)
Equivalent length| ≤70m| L2+L3 +L4 +L5 +f(connecting mode I) L3 +L5 +f(connecting mode II)
Equivalent length to the farthest pipe of the first distributor| ≤20m
Equivalent length to the nearest distributor| ≤15m| a、b、c、d、e、f
Height difference between the indoor and outdoor units| Outdoor upper| ≤30m| –
Outdoor lower| ≤20m| –
Height difference between the indoor units| ≤8m| –

4.6 Installation of distributor

1. The distributor shall use U-type or Y-type, instead of T-type.
2. The distributor shall be installed horizontally, with the deviation angle of no greater than ± 10℃
3. The distributor cannot be turned directly, with the straight pipe of no less than 0.8 meter.

4.7 Oil return bend settings

4.8 Remove foreign materials in the pipeline.

1. The foreign materials, which enter the refrigerant pipe during installation, shall be cleaned with high pressure nitrogen.
2. Don’t connect with the indoor unit upon cleaning.
3. Use the nitrogen instead of refrigerant or flammable toxic gases like oxygen.

4.9 Air tightness test

1. After the refrigerant pipe is installed and connected to the indoor unit, and before the connecting pipes between the indoor and outdoor units are connected to the valves of the outdoor units, refill the nitrogen with the pressure of 40kgf/cm² (4.0MPa) from the gas side and the fluid side simultaneously, mark the pressure value, and then perform 24-hour air tightness test.
2. If the pressure drops, recheck the leakage of all interfaces and then maintain the pressure for 24 hours.
3. Don’t connect with the outdoor unit during maintaining the pressure.

4.10Vacuumizing

1. The vacuum pump has the vacuum degree of less than -0.1MPa and the air displacement of more than 40L/min.
2. It is unnecessary to vacuumize the outdoor unit. Don’t open the check valves at the gas side and the liquid side of the outdoor unit.
3. Make sure the vacuum pump can drop up to -0.1MPa within 2 hours; if it fails to drop up to -0.1MPa after 3 hours, check moisture or air leak.
4. The vacuum pump must have a check valve.

NOTE

• Don’t use tools and measuring apparatus using in different refrigerants or directly contacting the refrigerant.
• Don’t exhaust air with refrigerant gas.
• If the vacuum degree cannot reach -0.1MPa, recheck its leakage. If not, keep the vacuum pump on for 1-2h.

4.11 Refilling volume of refrigerant
The refilling volume of refrigerant (R410A) is calculated according to the diameter and length of the pipe at the liquid side of the indoor and outdoor units.
Table 4-7 Refilling Volume of Refrigerant

Diameters of pipe at the
liquid side (mm)| Refilling volume of refrigerant equal to the
length of 1m pipe (unit: kg)
---|---
φ6.35| 0.022
φ9.52| 0.054

Note: The R410A refrigerant must be weighed by an electronic scale and filled in the liquid state.

4.12 Stop valve instructions

1. It is closed when leaving the factory;
2. Open the valve counterclockwise or close the valve clockwise with a 6mm socket head wrench;
3. After completing the operation, tighten the valve cover;
4. R410A special tool shall be used to vacuumize the valve and fill the refrigerant at the service entrance. Fill the refrigerant at the service entrance at the gas side, and vacuumize the valve at the service entrance at the liquid side and the gas side simultaneously.

4.13 Thermal insulation of pipe

1. Apply thermal insulation to the pipes at the gas side and the liquid side respectively;
2. Use closed-cell thermal insulation materials, with the flame retardant grade of B1 and high temperature resistance of 120℃;
3. Outer diameter of copper pipe ≤φ12.7 and thickness of thermal insulation cotton ≥ 15mm; outer diameter of copper pipe ≥ φ15.88 and thickness of thermal insulation cotton ≥ 20mm.
4. The nut joints of the indoor unit shall be performed thermal insulation

NOTE

• The power supplies for the indoor and outdoor units shall be separately designed.
• The power supply must be designed with a sub-circuit, and equipped with a current leakage protector and a manual switch.
• All indoor units in the same system shall be arranged on the same power circuit, and shall be turned on/off the power simultaneously. It is not allowed to equip each indoor unit with a power switch.
• The connecting wire system and the refrigerant pipe system of the indoor unit shall be incorporated into the same system.
• To reduce the interference, the indoor and outdoor communication cables shall use two-core or three-core shielded twisted-pair cables instead of ordinary multi-core cables.
• Conform to related national electrical standards.
• Electrical wiring shall be done by a professional electrician.

Electrical Wiring

5.1 Outdoor unit wiring
Table 5-1 Outdoor Unit Wiring

Power (kW)| Power Supply| Power Line (mm2)| Breaker/Fuse (A)| Signal Wire of Indoor/Outdoor Units (mm) (Signal Wire of Weak Current)
---|---|---|---|---
8/10| Single-phase| 220-240V 50Hz/60Hz| 3X4.0| 40/30| three-core shielded cable 3×1.0 (two-core shielded cable 2×1.0)
| | |
12. 5/14/16| Single-phase| 220-240V 50Hz/60Hz| 3 X 6. 0| 63/45
Three-phase| 380V 50Hz/60Hz| 5 X 2. 5| 25/20

If needed, the user can purchase a centralized controller, as shown in the dashed box. For the specific method of installation, please contact your local supplier.

NOTE

• When the signal line uses a two-core shielded cable, the shielding net shall be connected to “E” of the terminal block. When the signal line uses a three-core shielded cable, the shielding net shall be connected to the ground.
• Never connect the power line (strong current) to the terminal block of the signal line (weak current). Otherwise, the power board will be burnt out.

5.2 Indoor unit power supply wiring

NOTE
When the power line is parallel to the signal line, please put the electrical wires into their own wire pipes, with proper wire spacing (10A or below: 300mm, 50A or below: 500mm).
5.3 Indoor unit signal line wiring

If needed, the user can purchase a wire controller, as shown in the dashed box.

5.4 Wiring diagram/Dialing setting of main control board
For electrical wiring diagram of outdoor unit, refer to the wiring diagram at the side of the right side plate of the outdoor unit.
Dialing setting of main control board, refer to the wiring diagram at the side of the right side plate of the outdoor unit.

*Table 5-5 Inspection Instructions of Outdoor Unit for CHV Series**

turned on  when standby
1| 1-| Capacity of outdoor unit| 80, 100, 125, 140, 160
2| 2-| Operation mode| 0:off/fan;  2:cooling;  3:heating;  4:forced cooling
3| 3-| Total capacity need of indoor unit|
4| 4-| Actual capacity needs revised by outdoor unit|
5| 5-| Actual running capacity of outdoor unit|
6| 6-| Fan status(fan speed)| 0-8
7| 7-| T2/T2B average temperature| T2B average when cooling, T2 average when heating
8| 8-| T3 pipe temperature|
9| 9-| T3B condenser temperature|
10| 10-| T4 outdoor air temperature|
11| 11-| T5 exhaust temperature|
12| 12-| T6 refrigerant cooling panel temperature|
13| 13-| T7 refrigerant cooling inlet pipe temperature|
14| 14-| Electronic expansion valve opening degree| Actual value=display value8
15| 15-| Primary current|
16| 16-| Secondary current|
17| 17-| Primary voltage|
18| 18-| Secondary voltage(DC bus)| Actual value=display value4
19| 19-| Number of indoor units|
20| 20-| Number of operating indoor units|
21| 21-| Priority mode| 0:Auto ; 1:heating priority;  2:coolingpriority; 3:only heating
4:only cooling  5:First priority  6: VIP+auto priority
26| 26-| Frequency limit display| 0: no frequency limit; 1: T3B limit frequency ; 2: T4  limit frequency 4: T5 frequency limit;
8: voltage limit frequency ;16:current limit frequency  32:T6 limit frequency
64: silent limit frequency(will displaytotal if there are multiple frequency limits ）
27| 27-| Last failure or protection code| No protection or fault display—
28| 28-| Program version|
29| 29-| EEPROM  version|

The display content is defined as follows:
Normal display: display the number of indoor units in standby mode, or display the operating frequency of the compressor after the capacity is required;
Operation mode: off or fan: 0, refrigeration: 2, heating: 3, forced cooling: 4;
The number of indoor units (indoor units that can normally communicate with outdoor units).

Table 5-6 Outdoor Unit Fault Code

20-minute break at first or 2-minute break later
E4| T4 outdoor air temperature sensor fault|
E6| T3 Condenser pipe temperature sensor fault (outlet)|
E8| T5 Exhaust temperature sensor fault|
E9| AC over-voltage / under-voltage protection|
E10| EEPROM fault|
EA| T3B condenser temperature sensor fault (middle)|
Eb| T6 refrigerant cooling panel temperature sensor fault or temperature protection|
EC| T7 refrigerant cooling pipe inlet temperature sensor fault|
E.E| Model error(there is no dialing model in the EEOPROM)|
H0| Communication fault of master board and driver chip|
H4| Display P6(IPM module protection) for 3 times within 30 minutes|
H5| Display P2 (system pressure is too low) protection for 3 times within 30 minutes| 20-minute break at first or 2-minute break later
H6| Display P4 (T5 Exhaust temperature is too high ) protection for 3 times within 100 minutes| Only restore when power on again
H7| The decrease in number of indoor unit| Indoor units are lost for more than 3 minutes. It can’t be restored until number of indoor units are restored.
H9| Display P9 (DC fan fault )  protection for 2 times within 10 minutes| Only restore when power on again
H10| Display P3(inverter overcurrent protection) protection for 3 times within 60 minutes| Only restore when power on again
H11| Display P13 protection for 2 times within 10 minutes| Only restore when power on again
P1| High pressure protection|
P2| Low pressure protection| Display H5 after P2 protection for 3 times within 30 minutes
P3| inverter overcurrent protection|
P4| Exhaust overheating protection| Display H6 for 3 times within 100 minutes
P5| T3 or T3B condenser pipe overheating protection|
P6| IPM protection| Display H4 after P6 protection for 3 times within 30 minutes
P9| DC fan fault| Display H9 after P9 protection for 2 times within 10 minutes
P10| Anti-typhoon protection|
P11| T2 high temperature protection when heating|
P12| T3 overheating protection|
P13| Current detection error protection| Effective for12.5, 14,16, 18kW ; no such fault for 8 and 10kw
L0| DC compressor module fault|
L1| DC cable bus low voltage protection|
L2| DC cable bus high voltage protection|
L4| MCE fault / sync / closed loop|
L5| Zero speed protection|
L7| Compressor phase loss protection|
L8| Protection when the speed change at the previous moment and the latter moment
is greater than or equal to 15HZ|
L9| Protection when the difference of set speed and actual operation speed is greater than or equal to  15HZ|
Pb| T6 refrigerant cooling panel temperature is too high|

Note: Please refer to the wiring diagram

Trial Run

6.1 Inspection and confirmation before debugging

1. Check and make sure the refrigerating pipeline and communication line connecting with the indoor and outdoor units are connected with the same refrigerating system. Otherwise, some running faults occur. .
2. The power supply voltage is within the rated voltage of ±10%.
3. Check and make sure the power supply line and the control line are correctly connected.
4. Before power-on, make sure there is no short circuit.
5. Check if all units have passed 24-hour nitrogen pressure-maintaining (40kgf /cm ) test.
6. Make sure the debugged system is fully vacuumized, dried and filled with the refrigerant as specified.

6.2 Preparation before debugging

1. Calculate the refilling volume of refrigerant for each set of units according to the length of on-site liquid pipe.
2. Prepare the required refrigerant.
3. Prepare the system plan, system piping diagram and control wiring diagram.
4. Mark the set address codes on the system plan.
5. Turn on the power supply switch of the outdoor unit in advance, and make sure it is power-on for more than 12 hours, so that the heater heats the compressor oil.
6. Fully open air pipe check valve, liquid pipe check valve and oil balance valve of the outdoor unit. If they are fully opened, the machine may be damaged.
7. Check if the power supply phase sequence of the outdoor unit is correct.
8. Check if all dialing switches of the indoor and outdoor units are set according to the technical requirements of the product.

6.3 Filling of names of connecting systems
When the multiple indoor units are arranged, in order to distinguish the connecting systems of indoor and outdoor units, all systems shall be named respectively and recorded on the nameplate on the electronic control box cover of the outdoor unit.

6.4 Precautions against refrigerant leak

1. The refrigerant of the air conditioner is harmless and nonflammable.

2. The room for the air conditioner shall have an appropriate space. In case of refrigerant leak, it cannot go beyond the critical concentration. In addition, necessary measures can be taken.

3. The critical gas concentration harmless to the human body is 0.3 kg/m 3.

4. Confirm the critical concentration according to the following steps and take corresponding measures.
   a) Calculate the filling volume of refrigerant (A[kg]) Volume of refrigerant = filling volume of refrigerant before delivery (see the nameplate) + refilling volume of refrigerant corresponding to the length of pipe 3
   b) Calculate the indoor volume (B [m ]) (by the minimum volume)
   c) Calculate the refrigerant concentration: A[kg] B[m³] ≤ Critical concentration:0.3[Kg/m³]

5. Measures against exceeding the critical concentration
   a) To reduce the refrigerant concentration below the critical concentration, install a mechanical ventilation device (for frequent ventilation).
   b) If frequent ventilation cannot be performed, please install a leak warning device interlinked with the mechanical ventilation device.

6.5 Hand over to the client

1. Hand over the Use Manual for the Indoor Unit and the Installation Manual for the Outdoor Unit to the client.
2. Explain the contents of Use and Installation Manual to the client carefully.

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