−22°FWB (−30°CWB). • Available in 6, 8, 10 ton single modules and 12, 16, 20 ton multi-module systems • First Air Cooled VRV system to deliver heating down to −22°F (−30°C) as standard • Daikin’s patented inverted based vapor injection compressor delivers high heating capacity of up to 100% at 0°F (−18°C), up to 85% at −13°F (−25°C) and up to 60% at −22°F(−30°C) • R efrigerant cooled efficient and stable inverter board operation, independent of ambient conditions •...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 2. Compatibility 208/230 V model 460 V model 575 V model New model Current model New model Current model New model Current model RELQ72TATJA RELQ72TATJU RELQ72TAYDA RELQ72TAYDU RELQ72TAYCA RELQ72TAYCU RELQ96TATJA RELQ96TATJU RELQ96TAYDA RELQ96TAYDU RELQ96TAYCA RELQ96TAYCU RELQ120TATJA RELQ120TATJU...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 3. Nomenclature Outdoor Unit Minor revision Power supply symbol TJ: 3 phase, 208 / 230 V, 60 Hz YD: 3 phase, 460 V, 60 Hz YC: 3 phase, 575 V, 60 Hz Indicates minor change category Indicates major design category T: VRV IV Capacity indication in cooling...
Page 8
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Indoor Unit Standard symbol U: United States of America Power supply symbol VJ: 1 phase, 208/230 V, 60 Hz SBL: 1 phase, 120 V, 60 Hz Indicates major design category Capacity indication in cooling 05: 5,800 Btu/h 18: 18,000 Btu/h 48: 48,000 Btu/h...
Page 9
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Branch Selector Unit Single Branch Selector Unit (only necessary for Heat Recovery System) Power supply symbol VJ: 1 phase, 208 / 230 V, 60 Hz Indicates major design category T: VRV IV (Heat Recovery) Capacity indication 36: 36,000 Btu/h 60: 60,000 Btu/h...
Page 10
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Air Treatment Equipment Outdoor Air Processing Unit Standard symbol U: United States of America Power supply symbol VJ: 1 phase, 208 / 230 V, 60 Hz Outdoor air processing unit Indicates major design category Capacity indication in cooling 48: 48,000 Btu/h 72: 72,000 Btu/h...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 4. Model Names Outdoor Units Capacity range 6 ton 8 ton 10 ton 12 ton 14 ton 16 ton 18 ton 20 ton Power supply, Standard Capacity index Heat recovery 208 / 230 V RELQ 72TA 96TA...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Indoor Units Capacity Range 0.5 ton 0.6 ton 0.8 ton 1 ton 1.25 ton 1.5 ton 2 ton 2.5 ton 3 ton 3.5 ton 4 ton 4.5 ton 5 ton 6 ton 8 ton Power Supply, Standard Capacity Index Ceiling mounted cassette...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Air Treatment Equipment Outdoor Air Processing Unit Series Model name Power supply, Standard FXMQ 48MF 72MF 96MF : 1 phase, 208 / 230 V, 60 Hz U(VJU) : Standard symbol Energy Recovery Ventilator (VAM series) Series Model name Power supply, Standard...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Indoor Units Ceiling mounted cassette (Round flow with sensing) type Ceiling mounted duct type FXFQ-T FXMQ-M Shown with BYCQ125B-W1 VISTA™ 2 × 2 cassette unit Ceiling suspended type FXZQ-TA FXHQ-M Shown with BYFQ60C3W1W Shown with BYFQ60C3W1S 4-way blow ceiling-suspended type Wall mounted type FXUQ-P FXAQ-P One way blow cassette type...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Branch Selector Unit Single branch selector unit Multi branch selector unit BSQ-T BS-Q54TVJ Air Treatment Equipment Outdoor air processing unit Energy recovery ventilator (VAM series) FXMQ-MF VAM-G...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 6. Outdoor Unit Combination System capacity Module Number of Outdoor unit multi connection Model name units piping kit *1 RELQ72TATJA RELQ72TAYDA 21.1 RELQ72TAYCA RELQ96TATJA RELQ96TAYDA 10.0 28.1 — RELQ96TAYCA RELQ120TATJA RELQ120TAYDA 12.5 35.2 RELQ120TAYCA RELQ144TATJA RELQ144TAYDA 15.0...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 7. Interchangeability Branch selector unit (Reference) T-series branch selector unit P-series branch selector unit Single branch Multi branch selector Single branch Multi branch selector selector unit unit selector unit unit BS4Q54TVJ BSQ36TVJ BS6Q54TVJ BSVQ36PVJU BSV4Q36PVJU BSQ60TVJ BS8Q54TVJ...
*2. When outdoor-air processing units (FXMQ-MF) and standard indoor units are connected, the total connection capacity of the outdoor-air processing units (FXMQ-MF) must not exceed 30% of the capacity index of the outdoor units. And the connection ratio must not exceed 100%. *3. It is permitted to use a maximum connection ratio of 130% in some circumstances – please contact your local Daikin representative for further details.
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Capacity Range of Connectable Indoor Units Total capacity index of Maximum number of Type Capacity index Model name connectable indoor units *1 connectable indoor units RELQ72TATJA RELQ72TAYDA 51 to 93 (144) RELQ72TAYCA RELQ96TATJA Single outdoor units RELQ96TAYDA 68 to 124 (192) RELQ96TAYCA...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Limitation of Capacity Index for Heat Recovery Single Branch Selector Unit Model BSQ36TVJ BSQ60TVJ BSQ96TVJ Maximum number of connectable indoor units Total capacity index of connectable indoor units unit ≤ 36 36 < unit ≤ 60 60 <...
• Allowable height difference between outdoor and indoor units (when outdoor unit is below) is limited to 130 ft. (40 m). (Normal limit is 195 ft. (60 m).) * Contact your local Daikin representative for wind cover specification requirements and part numbers.
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 22. Selection Procedure 22.1 Selection Procedure 22.1.1 Flowchart Given conditions: · Design temperature and humidity (indoor & outdoor) [1] Given conditions · Required heat load of each room · System peak load (if necessary) ·...
Page 59
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 22.1.2 Selection Example The following is a selection example based on total heat load for cooling. Room H Room G Room A Room F Room B Room E Room C Room D Floor plan [1] Given conditions -Design conditions Indoor air temperature: 67°FWB / 80°FDB, Outdoor air temperature: 93°FDB...
Page 61
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D [3] –2 Provisionally select outdoor unit (1) Calculate CI (Capacity Index) of the selected indoor units. CI of VRV indoor units CI of FXMQ15PBVJU = 15 CI of FXMQ18PBVJU = 18 CI of FXMQ36PBVJU = 36 CI of FXMQ48PBVJU = 48 Capacity Range 0.5 ton 0.6 ton 0.8 ton 1 ton 1.25 ton...
Page 62
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D [3] –3 Calculate the corrected capacity of the outdoor unit. -Calculate the connection ratio of the system. Total CI = 234, CI of RELQ192TAYDA = 192 Connection ratio = 234 / 192 = 122% - Using the capacity table of the outdoor unit, calculate the capacity (B) corrected for outdoor air temperature, indoor air temperature, and connection ratio.
Page 63
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D -Confirm capacity correction factor by piping length and level difference (K1) (K1) = 0.924 0.924 -Calculate capacity correction factor by piping heat loss (K2) (K2) = 1 + (heat loss factor per feet of piping × (equivalent piping length – 25 ft.)) / 100 In cooling mode, heat loss factor per feet at 93°F is calculated as below. (R) Heat loss factor per feet = 0.072* + (0.098* – 0.072* ) × (93* – 86* ) / (95* – 86* ) = 0.0922 Using “Equivalent piping length = 200 ft”...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 24. Caution for Refrigerant Leaks 24.1 Introduction The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. The VRV System, like other air conditioning systems, uses R410A as refrigerant.
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D 24.2 Procedure for Checking Maximum Concentration Check the maximum concentration level in accordance with steps 1 to 4 below and take whatever action is necessary to comply. Step1: Calculate the amount of refrigerant (lbs. (kg)) charged to each system separately. Amount of refrigerant in a single unit Additional charging amount (amount system (amount of refrigerant with...
Page 75
Step 4: Dealing with the situations where the result exceeds the maximum concentration level. Where the installation of a facility results in a concentration in excess of the maximum concentration level then it will be necessary to revise the system. Please consult your Daikin supplier.
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Appendix 1. Introduction ....................78 1.1 ED Book List ...................78 1.2 Publication List of Engineering Data for VRV Products ....79...
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Publication List of Engineering Data for VRV Products Shaded sections indicate Engineering Data Book/s published for this series. Timing of publication is subject to change without notice. Outdoor Unit Refrigerant Category Product series Type Volts Model name Area...
Page 82
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D Indoor Unit and Other Products Refrigerant Product category Product type Model name Area Book No. Published in Ceiling Mounted Cassette Type FXFQ07-48TVJU EDUS391400A-F14 May 2018 (Round Flow with Sensing) VISTA™ 2 x 2 FXZQ05-18TAVJU EDUS391776-F9 Mar.2018 Cassette Unit...
Page 84
Improper installation can result in water or refrigerant leakage, electrical shock, fire or explosion. Use only those parts and accessories supplied or specified by Daikin. Ask a qualified installer or contractor to install those parts and accessories. Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage, electrical shock, fire or explosion.