Related Manuals for Daikin VRV IV Q+ Series
Summary of Contents for Daikin VRV IV Q+ Series
- Page 1 Installer and user reference guide VRV IV Q+ series heat pump RXYQQ8U7Y1B* RXYQQ10U7Y1B* RXYQQ12U7Y1B* RXYQQ14U7Y1B* RXYQQ16U7Y1B* RXYQQ18U7Y1B* RXYQQ20U7Y1B*...
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Page 2: Table Of Contents
Symptom: Fan operation is possible, but cooling and heating do not work ..........44 11.2.4 Symptom: The fan speed does not correspond to the setting..............44 Installer and user reference guide RXYQQ8~20U7Y1B VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 3 Multiple outdoor units: Knockout holes ......................81 18.2.4 To route the refrigerant piping ........................82 18.2.5 To connect the refrigerant piping to the outdoor unit ................. 82 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 4 Correcting after abnormal completion of the test run ....................142 21.7 Operating the unit................................142 22 Hand-over to the user 23 Maintenance and service 23.1 Maintenance safety precautions............................ 144 Installer and user reference guide RXYQQ8~20U7Y1B VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 5 26 Technical data 26.1 Service space: Outdoor unit ............................154 26.2 Piping diagram: Outdoor unit ............................156 26.3 Wiring diagram: Outdoor unit ............................157 27 Glossary RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 6: About The Documentation
The original documentation is written in English. All other languages are translations. Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required). -
Page 7: Meaning Of Warnings And Symbols
Symbols used in the documentation: Symbol Explanation Indicates a figure title or a reference to it. Example: " 1–3 Figure title" means "Figure 3 in chapter 1". RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 8 About the documentation Symbol Explanation Indicates a table title or a reference to it. Example: " 1–3 Table title" means "Table 3 in chapter 1". RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 9: General Safety Precautions
Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. Only use accessories, optional equipment and spare parts made or approved by Daikin. WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). -
Page 10: Installation Site
Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable standard. NOTICE Make sure the field piping and connections are NOT subjected to stress. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 11 Only use tools exclusively for the refrigerant type used in the system, this to ensure pressure resistance and prevent foreign materials from entering into the system. ▪ Charge the liquid refrigerant as follows: RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 12: Electrical
If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 13 Install power cables at least 1 m away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1 m may not be sufficient. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 14 Running the product in reversed phase can break the compressor and other parts. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 15: Specific Installer Safety Instructions
Any gas or oil remaining inside the stop valve may blow off the spun piping. If these instructions are NOT followed correctly it may result in property damage or personal injury, which may be serious depending on the circumstances. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 16 (especially terminals) do not appear to have deteriorated. Take the appropriate steps (e.g. replacement) if necessary. WARNING ALWAYS use multicore cable for power supply cables. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 17 Do NOT insert fingers, rods or other objects into the air inlet or outlet. Do NOT remove the fan guard. When the fan is rotating at high speed, it will cause injury. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 18: For The User
For the user RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 19: User Safety Instructions
Do NOT place any objects containing water on the unit. CAUTION ▪ Do NOT place any objects or equipment on top of the unit. ▪ Do NOT sit, climb or stand on the unit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 20: Instructions For Safe Operation
CAUTION It is unhealthy to expose your body to the air flow for a long time. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 21 Use of wire or copper wire may cause the unit to break down or cause a fire. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 22 NEVER expose little children, plants or animals directly to the airflow. CAUTION Do NOT touch the heat exchanger fins. These fins are sharp and could result in cutting injuries. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 23: About The System
Refrigerant piping c VRV direct expansion (DX) indoor unit d User interface (dedicated depending on indoor unit type) e Cool/Heat changeover remote control switch RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 24: User Interface
Detailed information on required actions to achieve certain functions can be found in the dedicated installation and operation manual of the indoor unit. Refer to the operation manual of the installed user interface. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 25: Before Operation
Doing so may result in a fire. CAUTION It is unhealthy to expose your body to the air flow for a long time. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 26 ▪ Fan only operation (air to air). Dedicated functions exist depending on the type of indoor unit, refer to dedicated installation/operation manual for more information. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 27: Operation
To protect the unit, turn on the main power switch 6 hours before operation. ▪ If the main power supply is turned off during operation, operation will restart automatically after the power turns back on again. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 28: About Cooling, Heating, Fan Only, And Automatic Operation
If the hot air rises to the ceiling, leaving the area above the floor cold, we recommend that you use the circulator (the indoor fan for circulating air). Contact your dealer for details. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 29: To Operate The System (Without Cool/Heat Changeover Remote Control Switch)
Result: The operation lamp lights up and the system starts operating. To stop 3 Press the ON/OFF button on the user interface once again. Result: The operation lamp goes out and the system stops operating. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 30: Using The Dry Program
8.3.3 To use the dry program (WITH cool/heat changeover remote control switch) To start 1 Select cooling operation mode with the cool/heat changeover remote control switch. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 31: Adjusting The Air Flow Direction
When the room temperature is lower ▪ When starting operation. than the set temperature. ▪ When the room temperature is higher than the set temperature. ▪ At defrost operation. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 32: Setting The Master User Interface
Only the master user interface can select heating or cooling mode. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 33: To Designate The Master User Interface (Vrv Dx And Hydrobox)
The unit is individually operated. NOTICE Contact your dealer in case of changing the combination or setting of group control and 2 user interface control systems. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 34: Energy Saving And Optimum Operation
The refrigerant temperature is fixed independent from the situation. It corresponds to the standard operation which is known and can be expected from/ under previous VRV systems. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 35: Available Comfort Settings
▪ Powerful ▪ Quick ▪ Mild ▪ RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 36: Maintenance And Service
Make sure to install cleaned air filters back in the same position. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 37: Maintenance Before A Long Stop Period
This product includes a warranty card that was filled in by the dealer at the time of installation. The completed card has to be checked by the customer and stored carefully. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 38: Recommended Maintenance And Inspection
6 times/hour. ▪ Operation of the unit is assumed to be 10 hours/day and 2,500 hours/year. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 39: Shortened Maintenance And Replacement Cycles
INFORMATION Damage due to taking apart or cleaning interiors of units by anyone other than our authorised dealers may not be included in the warranty. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 40: Troubleshooting
Check if the user interface display shows (time system stops. to clean the air filter). (Refer to "10 Maintenance service" [ 36] and "Maintenance" in the indoor unit manual.) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 41: Error Codes: Overview
For your reference, a list with malfunction codes is provided. You can, depending on the level of the malfunction code, reset the code by pushing the ON/OFF button. If not, ask your installer for advice. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 42 Current sensor malfunction Discharge temperature sensor malfunction (outdoor) Heat exchanger gas temperature sensor malfunction (outdoor) Suction temperature sensor malfunction (outdoor) De-icing temperature sensor malfunction (outdoor) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 43 Connection malfunction over indoor units or type mismatch Centralised address duplication Malfunction in communication centralised control device - indoor unit Auto address malfunction (inconsistency) Auto address malfunction (inconsistency) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 44: Symptoms That Are Not System Malfunctions
The fan direction does not correspond with the user interface display. The fan direction does not swing. This is because the unit is being controlled by the micro computer. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 45: Symptom: White Mist Comes Out Of A Unit (Indoor Unit)
11.2.11 Symptom: Noise of air conditioners (Outdoor unit) When the tone of operating noise changes. This noise is caused by the change of frequency. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 46: Symptom: Dust Comes Out Of The Unit
11.2.18 Symptom: Hot air can be felt when the indoor unit is stopped Several different indoor units are being run on the same system. When another unit is running, some refrigerant will still flow through the unit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 47: Relocation
Relocation 12 Relocation Contact your dealer for removing and reinstalling the total unit. Moving units requires technical expertise. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 48: Disposal
MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 49: Technical Data
Result: When the selection is done, the LOT 21 datasheet can be viewed as a PDF or a HTML webpage. INFORMATION Other documents (e.g. manuals, ...) can also be consulted from the resulting webpage. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 50: For The Installer
For the installer RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 51: About The Box
15.6 To remove the transportation stay ............................15.1 About LOOP BY DAIKIN is part of Daikin's wider commitment to reduce our environmental footprint. With we want to create a circular economy for refrigerants. One of the actions to achieve this, is the reuse of reclaimed refrigerant in VRV units produced and sold in Europe. -
Page 52: To Unpack The Outdoor Unit
WARNING Tear apart and throw away plastic packaging bags so that nobody, especially children, can play with them. Possible risk: suffocation. 8~12 HP 14~20 HP RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 53: To Remove The Accessories From The Outdoor Unit
Accessory pipes (mm) Øa Øb Gas pipe 25.4 19.1 ▪ Front connection 22.2 ID Øa ID Øb 28.6 ▪ Bottom connection ID Øa OD Øb RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 54: To Remove The Transportation Stay
2 Remove the transportation stay (b) as shown in the figure below. 3 Tighten the fixing nut (a) again. 3 (12.3 N·m) 3 (12.3 N·m) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 55: About The Units And Options
Example: R X Y Q Q 18 U7 Y1 B Code Explanation Outdoor air cooled Heat pump (no continuous heating) Pair module only Refrigerant R410A Replacement functionality Capacity class RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 56: About The Outdoor Unit
Not all combinations of indoor units are allowed, for guidance, see "Possible combinations of indoor units" [ 57]. a VRV IV replacement heat pump outdoor unit RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 57: Combining Units And Options
Conceiled ceiling FXYSP_KA7V19 FXYMP_K7V19 FXYCP_K7V19 2-way blow ceiling mounted FXYFP_KB7V19 4-way blow ceiling mounted FXYHP_KVE9 Ceiling suspended FXYL(M)P_KV19 Floor standing FXYKP_KV19 Ceiling mounted corner cassette RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 58: Possible Combinations Of Outdoor Units
RXYQQ36 = RXYQQ16 + 20 RXYQQ38 = RXYQQ8 + 10 + 20 RXYQQ40 = RXYQQ10 + 12 + 18 RXYQQ42 = RXYQQ10 + 16 + 16 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 59: Possible Options For The Outdoor Unit
If you do so, you also have to install the heater tape PCB kit. Description Model name Heater tape kit for 8~12 HP EKBPH012TA RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 60 To enable the power saving consumption control by digital inputs you must install the demand PCB. For installation instructions, see the installation manual of the demand PCB and addendum book for optional equipment. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 61: Unit Installation
It is therefore recommended to install the equipment and electric wires in such a way that they keep a proper distance from stereo equipment, personal computers, etc. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 62 Install the outdoor unit away from direct sea winds. Example: Behind the building. If the outdoor unit is exposed to direct sea winds, install a windbreaker. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 63: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
For instructions on how to install the snow cover, contact your dealer. NOTICE When installing the snow cover, do NOT obstruct the air flow of the unit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 64: Securing Safety Against Refrigerant Leaks
Ambient outdoor temperature If the unit has to operate for 5 days in this area with high humidity (>90%), Daikin recommends to install the optional heater tape kit (EKBPH012TA or EKBPH020TA) to keep the drain holes free. 17.1.3 Securing safety against refrigerant leaks... - Page 65 (D), (E) as a single room or as the smallest room. When there are no smaller room divisions: RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 66: Opening The Unit
Do NOT leave the unit unattended when the service cover is removed. 17.2.2 To open the outdoor unit DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING/SCALDING RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 67: To Open The Electrical Component Box Of The Outdoor Unit
NOT caught and bent towards the inside (see figure below). a Electrical component box cover b Front side c Power supply terminal block RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 68: Mounting The Outdoor Unit
Fasten the unit in place using four foundation bolts M12. It is best to screw in the foundation bolts until their length remains 20 mm above the foundation surface. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 69 If the water drainage is not taken care of, the area around the unit might be very slippery. ▪ When installed in a corrosive environment, use a nut with plastic washer (a) to protect the nut tightening part from rust. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 70: Piping Installation
R410A can contribute to the greenhouse effect if it is released. Therefore pay special attention to check the tightness of the installation. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 71: Refrigerant Piping Insulation
120°C ▪ Insulation thickness Ambient temperature Humidity Minimum thickness ≤30°C 75% to 80% RH 15 mm >30°C ≥80% RH 20 mm RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 72: To Select The Piping Size
<150 15.9 19.1 12.7 150≤x<200 19.1 25.4 200≤x<290 22.2 28.6 15.9 290≤x<420 28.6 34.9 12.7 420≤x<640 15.9 19.1 640≤x<920 34.9 54.1 19.1 22.2 ≥920 41.3 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 73 NOT allowed. But even if you use the standard size, the equivalent piping length is allowed to be more than 90 m. Pipe size-up is NOT allowed. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 74: To Select Refrigerant Branch Kits
Indoor unit capacity index 2 pipes <200 KHRQ22M20T 200≤x<290 KHRQ22M29T9 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 75: About The Piping Length
Total piping length from the outdoor to all indoor units. Difference in height between outdoor and indoor units. Difference in height between indoor and indoor units. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 76: Piping Length: Vrv Dx Only
Single outdoor Branch with refnet header Example 2.1 Multi outdoor Branch with refnet joint Example 2.2 Multi outdoor Branch with refnet joint and refnet header RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 77 Between outdoor branch and outdoor unit (only in case of a multi outdoor installation) Actual piping length 10 m Example 3 ▪ r, s, t≤10 m; u≤5 m Equivalent length 13 m RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 78 ≤40 m. Example: The farthest indoor unit 8. The nearest indoor unit 1 → (a+b+c+d+e +f+g+p)–(a+h)≤40 m. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 79: Multiple Outdoor Units: Possible Layouts
If the piping length between the outdoor units exceeds 2 m, create a rise of 200 mm or more in the gas line within a length of 2 m from the kit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 80: Connecting The Refrigerant Piping
Connecting the multi-connection piping kit ▪ Connecting the refrigerant branching kit ▪ Keeping in mind the guidelines for: Brazing Using the stop valves Removing the pinched pipes RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 81: Precautions When Connecting The Refrigerant Piping
Remove the front plate knockout holes to connect. Bottom connection Remove the knockout holes on the bottom frame and route the piping under the bottom. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 82: To Route The Refrigerant Piping
All local inter unit piping are field supplied except the accessory pipes. NOTICE Precautions when connecting field piping. Add brazing material as shown in the figure. ≤Ø25.4 >Ø25.4 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 83: To Connect The Multi Connection Piping Kit
▪ Mount the refnet joint so that it branches either horizontally or vertically. ▪ Mount the refnet header so that it branches horizontally. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 84: To Protect Against Contamination
Hold the pipe end downwards when removing burrs. ▪ Cover the pipe end when inserting it through a wall, to prevent dust and/or particles entering the pipe. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 85: To Braze The Pipe End
The gas and liquid stop valves are factory closed. ▪ The figures below show the name of each part required in handling the stop valve. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 86 Inadequate torque may cause leakage of refrigerant and breakage of the stop valve cap. NOTICE Pay attention that mentioned torque range is applicable for opening Ø19.1~Ø25.4 mm stop valves only. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 87 Tightening torque (N•m) (when opening or closing) (mm) Valve body Hexagonal wrench Service port Ø9.5 4 mm 10.7~14.7 Ø12.7 8~10 Ø15.9 14~16 6 mm Ø19.1 19~21 8 mm Ø25.4 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 88: To Remove The Spun Pipes
5 Cut off the lower part of the gas and liquid stop valve pipes along the black line. Use an appropriate tool (e.g. a pipe cutter). RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 89: Checking The Refrigerant Piping
Method 1: Before power ON If the system has not yet been powered on, no special action is required to perform the leak test and the vacuum drying. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 90: Checking Refrigerant Piping: General Guidelines
– 1 00.7 kPa (− 1 .007 bar)(5 Torr absolute). NOTICE Make sure the pump oil does not flow oppositely into the system while the pump is not working. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 91: Checking Refrigerant Piping: Setup
(5 Torr absolute) for more than 2 hours. 2 Once reached, turn off the vacuum pump and check that the pressure does not rise for at least 1 minute. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 92: To Perform Vacuum Drying
NOT increase. This might be caused by e.g. the closed state of the expansion valve in the outdoor unit circuit, but does NOT present any problem for correct operation of the unit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 93: To Insulate The Refrigerant Piping
If the power of some units is turned off, the charging procedure cannot be finished properly. NOTICE In case of a multiple outdoor system, turn on the power of all outdoor units. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 94: About Charging Refrigerant
There are two methods to charge additional refrigerant. Method Automatic charge "Step 6a: To automatically charge refrigerant" [ 101] Manual charge "Step 6b: To manually charge refrigerant" [ 103] RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 95: To Determine The Additional Refrigerant Amount
(b) Piping length is considered the distance from the outdoor unit to the farthest indoor unit CR Total indoor unit capacity connection ratio ▪ Parameter C: RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 96 0.022 Ø6 mm 0.018 Ø9.5 mm 0.059 Ø10 mm 0.065 Ø12.7 mm 0.12 Ø12 mm 0.097 Ø15.9 mm 0.18 Ø15 mm 0.16 Ø16 mm 0.18 Ø19.1 mm 0.26 Ø18 mm 0.24 Ø22.2 mm 0.37 Ø22 mm 0.35 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 97 For more information, see the technical engineering data. Indoor units Total CR VRV DX 50~130% Total CR = Total indoor unit capacity connection ratio RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 98: To Charge Refrigerant: Flow Chart
• Charging is finished • Fill in the amount on the additional refrigerant charge label • Go to test run Continued on next page >> RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 99: To Charge Refrigerant
1 Calculate the additional amount of refrigerant to be added using the formula mentioned in To determine the additional refrigerant amount. 2 The first 10 kg of additional refrigerant can be pre-charged without outdoor unit operation. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 100 5 After pre-charging, connect valve A to the refrigerant charge port and charge the remaining additional refrigerant through this port. Open all outdoor unit stop valves. At this point, valve A must remain closed! RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 101: Step 6A: To Automatically Charge Refrigerant
" starts flashing (ready for charging), push BS2 within 5 minutes. Open valve A. If BS2 is not pushed within 5 minutes, a malfunction code will appear: RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 102 In this case, when the additional refrigerant charging was not finished, step "Step 6a: To automatically charge refrigerant" [ 101] has to be repeated. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 103: Step 6B: To Manually Charge Refrigerant
"Step 6b: To manually charge refrigerant" [ 103]. ▪ Aborting the manual refrigerant charge is possible by pushing BS3. The unit will stop and return to idle condition. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 104: Error Codes When Charging Refrigerant
18.4.10 To fix the fluorinated greenhouse gases label 1 Fill in the label as follows: Contains fluorinated greenhouse gases RXXX GWP: XXX GWP × kg 1000 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 105 Use the GWP value mentioned on the refrigerant charge label. 2 Fix the label on the inside of the outdoor unit near the gas and liquid stop valves. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 106: Electrical Installation
▪ Make electrical connections to the fixed wiring. ▪ All components procured on-site and all electrical construction MUST comply with the applicable legislation. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 107 NOTICE NEVER remove a thermistor, sensor, etc., when connecting power wiring and transmission wiring. (If operated without thermistor, sensor, etc., the compressor may break down.) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 108: Field Wiring: Overview
It is important to keep the power supply and the transmission wiring separated from each other. In order to avoid any electrical interference the distance between both wiring should always be at least 25 mm. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 109 For the above wiring, always use vinyl cords with 0.75 to 1.25 mm sheath or cables (2-core wires). (3-core wire cables are allowable for the cooler/heater changeover user interface only.) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 110: Guidelines When Knocking Out Knockout Holes
Model (Ω) Minimum S value (kVA) RXYQQ8 — 4050 RXYQQ10 — 5535 RXYQQ12 — 6038 RXYQQ14 — 6793 RXYQQ16 — 7547 RXYQQ18 — 8805 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 111: Safety Device Requirements
25 A RXYQQ12 24.0 A 32 A RXYQQ14 27.0 A 32 A RXYQQ16 31.0 A 40 A RXYQQ18 35.0 A 40 A RXYQQ20 39.0 A 50 A RXYQQ22 46.0 A 63 A RXYQQ24 46.0 A 63 A RXYQQ26 51.0 A 63 A RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 112: To Route And Fix The Transmission Wiring
19.2 To route and fix the transmission wiring Transmission wiring can be routed through the front side only. Fix it to the upper mounting hole. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 113 Tie wrap. (a) Knockout hole has to be removed. Close the hole to avoid small animals or dirt from entering. 8~12 HP 14~20 HP RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 114: To Connect The Transmission Wiring
Outdoor unit PCB (A1P) b Use the conductor of sheathed wire (2 wire) (no polarity) c Terminal board (field supply) d Indoor unit e Outdoor unit RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 115: To Finish The Transmission Wiring
Liquid pipe b Gas pipe c Insulator d Transmission wiring (F1/F2) e Finishing tape RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 116: To Route And Fix The Power Supply
INFORMATION Installation and routing in case the cool/heat selector is used: refer to the installation manual of the cool/heat selector. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 117 In that case, the ring washer that is installed by default should be removed. Attach both cables to the power supply terminal as indicated below: RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 118: To Check The Insulation Resistance Of The Compressor
2 Turn ON the power and leave it on for 6 hours. Result: The compressor will heat up and evaporate any refrigerant in the compressor. 3 Measure the insulation resistance again. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 119: Configuration
Making settings is done via the master outdoor unit. Next to making field settings it is also possible to confirm the current operation parameters of the unit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 120 "To access mode 1 or 2" [ 122] ▪ "To use mode 1" [ 123] ▪ "To use mode 2" [ 123] ▪ "Mode 1: Monitoring settings" [ 124] RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 121: Field Setting Components
Make sure that all outside panels, except for the service cover on the electrical component box, are closed while working. Close the lid of the electrical component box firmly before turning on the power. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 122: To Access Mode 1 Or 2
If you get confused in the middle of the process, push BS1 to return to the default situation (no indication on 7‑segment displays: blank, refer to "To access mode 1 or 2" [ 122]. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 123: To Use Mode 1
It is done by pushing BS2. Accessing the selected setting's value is done by pushing BS3 1 time. To quit and return to the initial Press BS1. status RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 124: Mode 1: Monitoring Settings
The master unit should be used to input field settings in mode 2. [1‑0] Description No indication Undefined situation. Outdoor unit is master unit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 125 For more information and advice about the impact of these settings, see "20.3 Energy saving and optimum operation" [ 131]. [1‑10] Shows the total number of connected indoor units. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 126: Mode 2: Field Settings
(see setting [2‑83] and the operation manual). Master unit decides Cool/Heat operation when outdoor units are connected in multiple system combination RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 127 Further instructions regarding the different ways to charge additional refrigerant into your system can be found in chapter "About charging refrigerant" [ 94]. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 128 This setting will only be effective when the optional external control adaptor (DTA104A61/62) is installed and the setting [2‑12] was activated. [2‑25] Description Level 1 Level 3<Level 2<Level 1 2 (default) Level 2 Level 3 RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 129 The level is according to the table. [2‑31] Power consumption limitation (approximately) 1 (default) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 130 "20.3 Energy saving and optimum operation" [ 131]. [2‑82] Heating comfort setting. This setting is used in conjunction with setting [2‑9]. [2‑82] Heating comfort setting 1 (default) Mild Quick RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 131: To Connect The Pc Configurator To The Outdoor Unit
The intentional target, however, is fixed and will be used to obtain the best balance between energy consumption and comfort, depending on the application type. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 132: Available Main Operation Methods
Heating operation [2‑9] to the appropriate value, matching the requirements of the pre-designed system containing a high sensible solution. [2‑8] target (°C) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 133: Available Comfort Settings
When the request from the indoor units becomes more moderate, the system will eventually go to the steady state condition which is defined by the operation method above. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 134 Change… Cooling operation [2‑81]=0. This setting is used in conjunction with setting [2‑8]. Heating operation [2‑82]=0. This setting is used in conjunction with setting [2‑9]. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 135: Example: Automatic Mode During Cooling
Evaporating temperature Quick Powerful Mild Room temperature evolution: A Indoor unit set temperature B Operation start C Operating time D Mild E Quick F Powerful RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 136: Example: Automatic Mode During Heating
F Outside air temperature Condensing temperature Quick Powerful Mild Room temperature evolution: A Indoor unit set temperature B Operation start C Operating time D Mild RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 137 Configuration E Quick F Powerful RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 138: Commissioning
21 Commissioning NOTICE General commissioning checklist. Next to the commissioning instructions in this chapter, a general commissioning checklist is also available on the Daikin Business Portal (authentication required). The general commissioning checklist is complementary to the instructions in this chapter and can be used as a guideline and reporting template during the commissioning and hand-over to the user. -
Page 139: Checklist Before Commissioning
"Safety device requirements" [ 111]. Be sure that neither a fuse nor a protection device has been bypassed. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 140: About The Test Run
Refer to the indoor unit installation manual for more details concerning the individual test run. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 141: To Perform A Test Run
To abort the operation, press BS3. The unit will stop after ±30 seconds. 5 Check the test operation results on the outdoor unit 7‑segment display. Completion Description Normal completion No indication on the 7‑segment display (idle). RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 142: Correcting After Abnormal Completion Of The Test Run
For operating the indoor unit, the user interface of the indoor unit should be switched ON. Refer to the indoor unit operation manual for more details. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 143: Hand-Over To The User
Explain the user how to properly operate the system and what to do in case of problems. ▪ Show the user what to do for the maintenance of the unit. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 144: Maintenance And Service
50 V DC, discharge the capacitors in a safe manner by using a dedicated capacitor discharge pen to avoid possibility of sparking. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 145: About Service Mode Operation
3 Press BS3 to stop vacuuming mode. 23.2.2 To recover refrigerant This should be done with a refrigerant recovery unit. Follow the same procedure as for vacuuming method. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 146 Use a separate recovery system so that the unit's compressor does NOT have to operate. NOTICE Make sure to NOT recover any oil while recovering refrigerant. Example: By using an oil separator. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 147: Troubleshooting
Stop valve closed (liquid) Open liquid stop valve. ▪ Refrigerant overcharge ▪ Check refrigerant amount +recharge unit. ▪ Stop valve closed ▪ Open stop valves. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 148 Check refrigerant amount +recharge unit. ▪ Stop valve closed ▪ Open stop valves. Ambient temperature sensor Check connection on PCB or malfunction (R1T) - A1P actuator. (X18A) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 149 Check connection on PCB or (coil) malfunction (R4T) - A1P actuator. (X30A) Gas temperature sensor (after Check connection on PCB or subcool HE) malfunction (R6T) actuator. - A1P (X30A) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 150 Check if power supply is within range. INV2 voltage power shortage Check if power supply is within range INV2 power phase loss Check if power supply is within range. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 151 (by monitor mode) or wait till initialisation is finished. Stop valve closed or wrong Open stop valves. (during system test run) Auto charging related RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 152 Close valve A immediately. unit Push BS1 to reset. Retry autocharge procedure. — Automatic charging nearly Prepare for autocharge finished stopping. — Automatic charging finished Finish autocharge mode. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 153: Disposal
MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 154: Technical Data
Technical data 26 Technical data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required). In this chapter 26.1... - Page 155 The service space dimensions in above figure are based on cooling operation at 35°C ambient temperature (standard conditions). INFORMATION Further specifications can be found in the technical engineering data. RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 156: Piping Diagram: Outdoor Unit
Stop valve, liquid t Stop valve, gas u Expansion valve, liquid cooling (Y3E) Piping diagram: RXYQQ14~20 (S1NPL) (S1NPH) (S4PH) (S3PH) (S1PH) (S2PH) R22T R21T RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... -
Page 157: Wiring Diagram: Outdoor Unit
For 8~12 HP: Connector X1A (M1F) is white, connector X2A (M2F) is red. For 14~20 HP: Colours (see below). Colours (see below). Symbols: Field wiring Terminal block Connector Terminal RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10... - Page 158 K4R (A1P) Magnetic relay (Y1S) K5R (A1P) Magnetic relay (Y2S) K6R (A1P) Magnetic relay (E3H) K7R (A1P) Magnetic relay (E1HC) K9R (A1P) Magnetic relay (Y3S) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 159 Solenoid valve (oil 1) Noise filter (ferrite core) Z*F (A2P, A5P) Noise filter (with surge absorber) Connectors for optional accessories: X10A Connector (drainpan heater) X37A Connector (power adapter) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 160 PS (A1P, A3P, Switching power supply A6P) Q1DI Earth leakage circuit breaker (field supply) Q1LD (A1P) Earth current detector (field supply) R24 (A4P, A7P) Resistor (current sensor) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
- Page 161 Z*F (A2P) Noise filter (with surge absorber) Connectors for optional accessories: X10A Connector (drainpan heater) X37A Connector (power adapter) X66A Connector (remote switching COOL/HEAT selector) RXYQQ8~20U7Y1B Installer and user reference guide VRV IV Q+ series heat pump 4P546229-1A – 2020.10...
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Page 162: Glossary
Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with the product according to the instructions in the accompanying documentation. - Page 164 4P546229-1A 2020.10 Verantwortung für Energie und Umwelt...