The values of operation sound level represent those for rear-suction operation. Sound level values for bottom-suction operation can be obtained by adding 5 dB. Values are based on the following conditions: Ceiling FXDQ07~12M: external static pressure in. Wg 0.12; FXDQ18~24M: external static pressure in. Wg 0.16 FXDQ-M...
Refer to the fan curves for actual fan performance. 5. Anechoic chamber conversion value, measured under JISB8616 conditions. During actual operation, these values are normally somewhat higher as a result of installation conditions. 6. Refer to page 10 for Power Input. FXDQ-M...
Page 5
Refer to the fan curves for actual fan performance. 5. Anechoic chamber conversion value, measured under JISB8616 conditions. During actual operation, these values are normally somewhat higher as a result of installation conditions. 6. Refer to page 10 for Power Input. FXDQ-M...
R1T : Thermistor for suction air temperature R2T : Thermistor for liquid line temperature R3T : Thermistor for gas line temperature Capacity Liquid φ1/2” / 12.7 mm φ1/4” / 6.4 mm 07/09/12/18M φ5/8” / 15.8 mm φ3/8” / 9.5 mm FXDQ-M...
Note: 1. The remote controller can be used to switch between HIGH and LOW. 2. The air flow is set to STANDARD before leaving the factory. You can switch between STANDARD ESP and HIGH ESP with the remote controller. FXDQ-M...
Refrigerant gas may produce toxic gas if it comes in contact can be securely fastened. with fire such as from a fan, heater, stove, or cooking FXDQ-M...
Avoid drainage and insulate piping in order to prevent con- putting any pressure on other parts, especially the refrig- densation. erant piping. FXDQ-M...
Page 19
Air filter (13) Quantity 2 pcs. 1 pc. • Operation manual • Installation manual Shape OPTIONAL ACCESSORIES • This indoor unit requires one of the operation remote con- trols listed below. Remote controller Wired type BRC1D71 Wireless type BRC4C82 FXDQ-M...
• If you think the humidity inside the ceiling might exceed 86°F present due to the risk explosion resulting in serious injury and RH80%, reinforce the insulation on the unit body. or death. Use glass wool or polyethylene foam as insulation so that the FXDQ-M...
24 type 43-5/16 44-7/8 (2) Make sure the range of the unit’s external static pres- sure is not exceeded. See the Engineering Data for the range of the external static pressure setting. (3) Open the installation hole. (Pre-set ceilings) FXDQ-M...
Page 22
(3) Attach the air filter (accessory) in the manner shown Filter Force in the diagram. The four holes which cannot be covered by the air fil- ter should be covered with commercially available tape. In case of bottom side In case of back side FXDQ-M...
Flare shape (in.) (in.) torque (ft.lbf) (in.) φ1/4 10.4–12.7 0.342–0.358 φ3/8 24.1–29.4 0.504–0.520 R0.016-0.031 φ1/2 36.5–44.5 0.638–0.654 φ5/8 45.6–55.6 0.760–0.776 CAUTION Overtightening may damage the flare and cause leaks. Ensure that oil does not to adhere to any portions other FXDQ-M...
Page 24
(Refer to Fig. 9) CAUTION • When brazing a pipe while feeding nitrogen inside the pipe, make sure to set the nitrogen pressure to 29 psi or less using the pressure reducing valve. FXDQ-M...
• Drain piping passing indoors • Drain pipe connection hole Referring the figure below, insulate the metal clamp (1) and drain hose (2) using the included large sealing pad (5). (Refer to Fig. 12) FXDQ-M...
REMOTE CONTROLLER INSTALLATION MANUAL. • All wiring must be performed by an authorized electrician. • This system consists of multiple indoor units. Mark each indoor unit as unit A, unit B , and so forth, and be sure the FXDQ-M...
Min. 187 18 type 0.13 Max. 253 heating, and in worse cases, electric shock or fire. 24 type 0.13 MCA: Minimum Circuit Amps (A) MFA: Max. Fuse Amps (A) KW: Fan motor output (kW) FLA: Full Load Amps (A) FXDQ-M...
Page 28
W I R I N G O F F (accessory) Power supply wiring Wiring through Terminal block (6P) Ground wire hole Remote controller wiring Transmission wiring REMOTE TRANSMISSION FORCED CONTRL WIRING Fig. 15 • Power supply wiring and Ground wire FXDQ-M...
Page 29
• If the terminal screws are tightened too hard, screws might be damaged. • Refer to the following below for the tightening torque of the terminal screws. FXDQ-M...
FIELD SETTINGS manual that came with CONTRL WIRING the remote controller. Remote controller wiring • The settings can select Mode No., No., FIRST CODE terminal block NO. and SECOND CODE NO. Remote Remote controller 2 controller 1 (SUB) (MAIN) FXDQ-M...
Page 31
Closing the normally open cir- cuit between terminals T1 and Unit stopped by changing input A T2 stops operation of the unit. When T1-T2 is opened, the unit from “on” to “off” must be restarted with the remote controller. FXDQ-M...
Page 32
• The remote controller wiring is cut. CAUTION • Always stop the test run using the remote controller to stop operation. WARNING • After finishing the test run, make sure to check drainage in the drain pump according to “7. DRAIN PIPING WORK”. NOTE FXDQ-M...