Service Manual
Table Of Contents
Specifications SiUS281811E
40 Part 1 General Information
Model
name
Indoor unit FTQ42TAVJUD, FTQ42TAVJUA FTQ48TAVJUD, FTQ48TAVJUA
Outdoor unit RZQ42TAVJU RZQ48TAVJU
Power supply 1 phase, 208/230 V, 60 Hz 1 phase, 208/230 V, 60 Hz
1 4 Cooling capacity Btu/h
(kW)
42,000 (12.3) 48,000 (14.1)
2 4 Heating capacity Btu/h
(kW)
47,000 (13.8) 54,000 (15.8)
3 4 Heating capacity Btu/h
(kW)
31,000 (9.1) 32,000 (9.4)
SEER (Rated) 16.0 14.8
EER (Rated) Btu/h∙W 11.0 9.5
HSPF (Rated) 9.0 9.0
Indoor unit FTQ42TAVJUD, FTQ42TAVJUA FTQ48TAVJUD, FTQ48TAVJUA
Casing color Daikin Slate Gray Daikin Slate Gray
Dimensions: (H×W×D) in (mm) 53.43 × 21 × 21 (1,357 × 533 × 533) 53.43 × 21 × 21 (1,357 × 533 × 533)
Coil Type Cross fin coil Cross fin coil
Face area ft² (m²) 5.15 (48) 5.15 (48)
Fan Type Sirocco FC Centrifugal Sirocco FC Centrifugal
Motor output HP 3/4 3/4
Airflow rate (H/M/L) cfm
(m³/min)
1,400/1,190/980 (39.7/33.7/27.8) 1,520/1,290/1,060 (43.1/36.5/30.0)
External static
pressure
in. w.g.
0.1” - 0.9” 0.1” - 0.9”
Sound pressure level (H/M/L) dB(A) 53.8/50.0/45.6 53.8/50.0/45.6
Air filter —5—5
Weight lbs (kg) 150 (68) 150 (68)
Connecting
Pipes
Liquid Pipe in (mm) 3/8 (9.5) (Brazing connection) 3/8 (9.5) (Brazing connection)
Gas Pipe in (mm) 5/8 (15.9) (Brazing connection) 5/8 (15.9) (Brazing connection)
Drain Pipe in (mm) 3/4” (19.1) 3/4” (19.1)
Remote controller
(option)
Wired BRC1E73, BRC2A71 BRC1E73, BRC2A71
Wireless BRC4C82 BRC4C82
Outdoor unit RZQ42TAVJU RZQ48TAVJU
Casing color Ivory white Ivory white
Dimensions: (H×W×D) in (mm) 52–15/16 × 35–7/16 × 12–5/8 (1,345 × 900 × 320) 52–15/16 × 35–7/16 × 12–5/8 (1,345 × 900 × 320)
Coil Type Cross fin coil Cross fin coil
Rows×Stages×FPI 2 × 60 × 19 2 × 60 × 19
Face area ft² (m²) 12.2 (1.134) 12.2 (1.134)
Compressor Model 2YC90GXD#D 2YC90GXD#D
Type Hermetically sealed swing type Hermetically sealed swing type
Motor output kW 3.5 3.5
Fan Model P47N P47N
Type Propeller fan Propeller fan
Motor output W 70 × 2 70 × 2
Airflow rate cfm
(m³/min)
3,741 (106) 3,741 (106)
Weight lbs (kg) 225 (102) 225 (102)
Sound pressure level dB(A) 57 57
Connecting
Pipes
Liquid Pipe in (mm) 3/8 (9.5) (Flare connection) 3/8 (9.5) (Flare connection)
Gas Pipe in (mm) 5/8 (15.9) (Flare connection) 5/8 (15.9) (Flare connection)
Drain Pipe in (mm) 1 (
26) (Hole) 1 (26) (Hole)
Safety devices High pressure switch, Outdoor fan driver overload
protector, Inverter overload protector, Fusible plugs, Fuse
High pressure switch, Outdoor fan driver overload
protector, Inverter overload protector, Fusible plugs, Fuse
Capacity Control % 14-100 14-100
Refrigerant control Electronic expansion valve Electronic expansion valve
Ref.
piping
Standard length ft (m) 25 (7.6) 25 (7.6)
Max. length ft (m) 230 (70) 230 (70)
Max. height
difference
ft (m)
98 (30) 98 (30)
Refrigerant Model R-410A R-410A
Charge lbs (kg) 7.9 (3.6) 7.9 (3.6)
Ref. oil Model DAPHNE FVC50K DAPHNE FVC50K
Charge L 1.52 1.52
Drawing
No
Sound (outdoor)
C: 4D101949D C: 4D101949D
Notes:
1 Indoor temp. : 80°FDB (26.7°CDB), 67°FWB (19.4°CWB) / Outdoor temp. : 95°FDB (35.0°CDB) / Equivalent piping length : 25 ft (7.6 m), level difference : 0 ft (0 m).
2 Indoor temp. : 70°FDB (21.1°CDB) / Outdoor temp. : 47°FDB (8.3°CDB), 43°FWB (6.1°CWB) / Equivalent piping length : 25 ft (7.6 m), level difference : 0 ft (0 m).
3 Indoor temp.: 70°FDB (21.1°CDB) / Outdoor temp.: 17°FDB (−8.3°CDB), 15°FWB (−9.4°CWB) / Equivalent piping length: 25 ft (7.6 m), level difference: 0 ft (0 m).
4 Capacities are net, including a deduction for cooling (an addition for heating) for indoor fan motor heat.
5 Air filter is not standard accessory (field supply parts), but please mount it in the duct system of the suction side.