INSTALLATION, OPERATION & MAINTENANCE MANUAL InverterFlex® Multi-Zone Floor and Ceiling Type Indoor Unit B-VFH09UA-1 B-VFH12UA-1 B-VFH18UA-1 B-VFH24UA-1 Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit Heat Controller User Notice n When installing, the entire capacity of the sum of indoor units should not be larger than 150% of the outdoor unit, otherwise, it will cause a shortage of cooling (heating) capacity. n The power supply of the entire unit must be the power supply of outdoor unit. Disconnect the main power of outdoor unit before cleaning. n Power unit for 8 hours before startup.
ATTENTION When using a mini-split condensate pump on a multi-head system, the pump must be on a separate electrical circuit. Do not access power from the indoor unit.
Heat Controller B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit TABLE OF CONTENTS 1.Safety Precautions ......................................................................................................... 5 2.Installation Precautions and Location Selection......................................................... 6 2.1 Installation Precautions ......................................................................................... 6 2.2 Location Selection .........................
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit Heat Controller 1 Safety Precautions Please read this manual carefully before using this unit. Operate it correctly according to the guide in this manual. Please pay special attention to the meaning of these two marks: ! Warning! ! Caution! ! Warning! This mark means that the unit may cause property damage, personal injury or loss of life if the operation is incorrect.
Heat Controller B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit 2 Installation Precautions and Location Choosing 2.1 Installation Precautions The installation of air conditioner must conform to national and local safety laws. Installation quality will directly affect the normal operation of air conditioner. Do not attempt to install the air conditioner by yourself. Please contact your dealer after buying this machine.
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit Heat Controller 3 Installation of Floor and Ceiling Type Indoor Unit 3.1 Space Dimension for Unit Installation >5 ft. The space around the unit is adequate for ventilation. (Refer to Fig. 1) >36” >36” >40” >6” >24” >5 ft. >7.5 ft. >24” >1 ft. >12” Fig. 1 3.2 Important Notice (1). The unit must be installed by professional personnel according to this installation manual to ensure proper function. (2).
Heat Controller B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit (Refer to Fig. 5). Installation paper plank Side panel fixing screw (M4) Fig. 2 Fig. 3 (3). Set the suspension bolt. (Use W3/8 or M10 size suspension bolts). n Adjust the distance from the unit to the ceiling slab beforehand. (Refer to Fig. 4). (4). Fix the hanger bracket to the suspension bolt. ! Warning! n Make sure that extended suspension bolt from the ceiling stays inside the appointed position.
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit Fig. 4 Ceiling Heat Controller Hanger Basket 40 or less Hanger Basket Hanger Basket setting bolt (M8) Suspension Bolt Hanger Basket fixing bolt (M6) Ceiling Slab Bolt Position Inward Fig. 5 Fig. 6 Hanger Basket Fig. 7 Fig. 8 Fig. 9 When installing the indoor unit, you can refer the paper pattern for installation.
Heat Controller B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit 3.4 Electrical Wiring ! Caution! The power of every indoor unit should be connected in outdoor unit j Open front panel. k Remove the electrical box cover. l Route the power connection cord from the back of the indoor unit and pull it toward the front through the wiring hole upward.
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit Heat Controller A-VFH42PA-1 OUTDOOR UNIT POWER ! Caution! j Incorrect wiring connection will lead malfunction. k Be sure to leave some space between the connecting end and the clamp end after the wiring is landed. l The installation should comform to national wiring regulations. 3.5 Drainpipe Installation Make sure the drain flows out (1). Drain piping.
Heat Controller B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit n Either the right rear or right side of the unit is suitable for fixing the drainpipe. n The diameter of the drainpipe should be equal to or greater than that of the connecting pipe. n Make the drainpipe as short as possible and slope downward at a gradient of at least 1/100 to prevent air pockets. (Refer to Fig. 10). n Use the attached drain hose m and clamp n.
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit Heat Controller 3.6 Install the Refrigerant Lines j The bending of the pipe shall not be too small, otherwise the pipe may crack. A pipe bender must be used when bending the pipe.(4). k Wrap the thermally untreated pipe and connectors with sponge and then tighten the sponge with plastic tape.
Heat Controller B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit 6 Maintenance Method ! Warning! j Turn off the unit and cut off the power supply when cleaning the air conditioner, otherwise, electric shock may happen. k Do not let the air conditioner get wet, or it will cause electric shock. Ensure that the air conditioner will not be cleaned by water rinse under any circumstances. l Volatile liquid like thinner or gasoline would damage the appearance of air conditioner.
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit 7 Operating Instructions n The expected temperature should be set at a moderate level to avoid of unnecessary energy consumption. n Airflow direction will be changed by adjusting the louvers and flaps as shown. n Clean the air filter every week for higher efficiency. n Close the window and door while operating the unit to save energy.
Heat Controller B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit n Check electrical system (voltage and frequency). Use the power supply indicated on the nameplate of the unit to operate the air conditioner and use only fuses as specified capacity should be done by technicians. Do not shunt around fuses. n If electric shock suddenly happens, turn off the unit. If the unit is not to be used for a long period, cut off the main power supply.
B-VFH—UA-1 InverterFlex® Multi-Zone Floor & Ceiling Type Indoor Unit Heat Controller 8 Malfunction Analysis ! Warning! Repairing work should be done by Heat Controller technicians. For saving your time and spending, please check the following malfunction analysis before contacting customer service center. After turning off the air conditioner, the unit does not restart immediately. The overload protection switch of the unit needs 3 mins before restarting. Odor gives out when the unit just turns on.
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