INSTALLATION, OPERATION & MAINTENANCE MANUAL InverterFlex® Series Indoor Ductless Mini-Split Heat Pumps B-VFH09MA-1 B-VFH12MA-1 B-VFH18MA-1 Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller TABLE OF CONTENTS Warnings and Cautions........................................................................................................ 3 Parts Identification................................................................................................................ 4 Operation of Wireless Remote Control.............................................................................. 5-9 Special Features of Wireless Remote Control..
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split • Read the follow SAFETY PRECAUTIONS carefully before installation. • Electrical work must be performed by a licensed electrician. • Incorrect installation due to ignoring the instruction will cause harm or damage. n The seriousness is classified by the following indications. ! WARNING! ! This symbol indicates the possibility of death or serious injury. CAUTION! This symbol indicates the possibility of injury or damage to property.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Parts Identification Indoor Unit Air Inlet Air Outlet The icons displayed: Cool Dry Heat Power Set temp.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Operation of wireless remote control Features and functions of wireless remote control Note: Be sure that there are no obstructions between the unit’s receiver and remote control. Be careful not to drop the remote control; Don’t let any liquid get inside the remote control, don’t put the remote control directly in sunlight or any other place where it is very hot.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Operation of wireless remote control Features and functions of wireless remote control X-FAN X-FAN button • By pressing X-FAN button in COOL or DRY mode, the icon is displayed and the indoor fan will operate for 2 minutes in order to dry the indoor unit after powering off the unit. X-FAN OFF is the default setting. The X-FAN feature is not available in AUTO, FAN or HEAT mode.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Operation of wireless remote control Features and functions of wireless remote control TIMER OFF TIMER OFF button • Press the Timer off button to create the timer off program. The Timer off icon will blink, indicating it is in programming mode. The set up process is the same as the timer on process - see Timer On for instructions.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Operation of wireless remote control Features and functions of wireless remote control Sleep Button: The sleep program allows for the most comfortable conditions while you sleep, as body temperatures change. To activate the sleep mode, press the sleep mode button. There are (3) different programmed settings to choose from Sleep 1 ( 1), Sleep 2 ( 2), and Sleep 3 ( 3) described below.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Operation of wireless remote control Features and functions of wireless remote control • When the initial set temperature is between 82°F-85°F (28°C-29°C), the temperature will increase 1-2 degrees every hour until a 1-2 degree increase is achieved and that will be maintained for (7) hours. After (7) hours, the temperature will decrease another 1-2 degrees and continue to operate under this condition.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Special features of the wireless remote Keypad Lock: Press + and - buttons simultaneously to lock or unlock the keypad. If the remote controller is locked, the icon be displayed. If the keyboard is unlocked, the mark will disappear. Fahrenheit and Centigrade: While the unit is off, press the MODE and - buttons simultaneously to switch between °C and °F.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Manual Operation Manual Operation When the remote controller is lost or damaged, please use the manual switch on the main unit. The unit will operate in AUTO mode based on the room temperature. NOTE: In this mode, the set temperature and fan speed can not be changed. • Turn on the unit: Press AUTO/STOP button to enter AUTO mode. The indoor unit will select the mode (COOL, HEAT, FAN) according to the room temperature.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Operation Tips Cooling Operation Principle: • Air conditioners absorb heat in the room and transmit it to the outdoor unit, so that the room temperature decreases. The cooling capacity will increase or decrease according to outdoor ambient temperature. Antifreeze Function: • If the unit is operating in COOL mode and in low ambient temperatures, frost may form on the heat exchanger.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Care and Cleaning ! Caution CAUTION! • Disconnect the power supply before performing any cleaning or maintenance. • Be sure water does not get inside the unit when cleaning. To avoid electrical shock and damage to the unit. • The cabinet can be cleaned with a dry or damp cloth. Do not use harsh chemical cleaners, wax, or polish.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Troubleshooting Caution • The air conditioner is not user serviceable. Incorrect repair may cause electric shock or fire. Please contact an authorized service center or professional to repair. Performing the following checks prior to contacting may save you time and money. Problem Troubleshooting The unit does not operate: Waiting Odors are emitted: • The unit does not operate if it is turned on immediately after it is turned off.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Troubleshooting Phenomenon The unit will not start up: Troubleshooting Check these things before calling for service: • Is the power on? • Has the circuit breaker tripped? Breaking off Cooling/Heating is poor: Remote control is not working: • Is the TIMER correctly used? • Is temperature set appropriately? • Is the inlet or outlet blocked? • Is the filter dirty? • Is a window or the door open in the room the unit is operating in? • Is l
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Troubleshooting Problem Troubleshooting • In HEAT mode, when the temperature of indoor heat exchanger is very low, air flow stops in order to prevent cold air from blowing for 2 minutes. • In HEAT mode, when the outdoor temperature is low or humidity is high, frost will form on the outdoor heat exchanger. The unit will defrost automatically and indoor unit will stop blowing air for 3-12 minutes.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Installation Notices: ! CAUTION! Caution 1. The unit must only be installed by authorized servicer and in compliance with this installation instruction. 2. Installation must be performed in accordance with the requirements of NEC or CEC and all local codes by authorized personal only. 3. WARNING: Before obtaining access to terminals, all supply circuits must be disconnected. 4.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Installation Location and Clearances Selecting installation place • The indoor unit should be mounted as high up on the wall toward the ceiling, leaving a minimum of 6” (150mm) of space between the ceiling and the top of the indoor unit.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Wall Bracket should be flush with the interior wall Indoor unit installation 1. Wall Bracket Mounting NOTE: • Drill holes in the wall according to the stud locations and corresponding mounting points on the actual wall bracket that comes with your unit. Wall brackets may vary by model and specifications are subject to change. • It is important to use all screws provided to secure the wall bracket to the wall. Fig. 5 9k, 12k Unit Fig.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Installation of Indoor Unit 4. Refrigerant Line Installation A. Remove the knockout from the desired side of the unit that the line set will be routed from. The lines from the unit can be routed either left or right, left back or right back (Fig. 11). Knockout B. Loosely run the line set connections from the indoor unit through the hole in the wall (Fig. 8). Left Knockout C. Hang the unit onto the top flanges of the wall bracket.
Heat Controller VFH InverterFlex® - Indoor Ductless Mini-Split Installation of Indoor Unit Indoor/Outdoor Communicating Cable Indoor Wiring 1. Wiring must conform to all local and national electric codes 2. Lift the indoor unit’s panel up, remove the wiring cover and clamp as shown in (Fig.15). 3. Connect each conductor to the terminal of the indoor unit (N (1), 2 3, and Ground) based on the labels of each terminal (Fig. 15). Wiring cover 4. Use cable clamp to secure the cable (Fig. 15). Cable 5.
VFH InverterFlex® - Indoor Ductless Mini-Split Heat Controller Initial Start-up Checks Operation of the unit will depend on the setting of the thermostat on the unit or the remote control. IMPORTANT! Both indoor and outdoor units must be completely installed. See outdoor installation instructions for the outdoor unit’s installation. All panels must be installed, main power turned on and the wiring, refrigerant lines, and condensate drain lines properly connected before operating the unit.
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