Heat Controller VMH 09, VMH 27, VMH 18 This symbol denotes item that is Prohibited from doing

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Heat Controller, Inc.

INSTALLATION MANUAL

VMH InverterFlex Mini-Split

Read the follow SAFETY PRECAUTIONS carefully before installation.

Electrical work must be performed by a licensed electrician. Be sure to use the correct rating of the power cord and main circuit for the model to be installed.

Incorrect installation due to ignoring the instruction will cause harm or damage.

nThe 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.

The items to be followed are classified by the symbols:

This symbol denotes item that is PROHIBITED from doing.

!WARNING!

1)Do not install without an authorized servicer/installer.

2)Install according to this installation instruction. If installation is defective, it can cause water leakage, or electrical shock/fire.

3)Use the supplied accessories and specified parts for installation.

4)Install the indoor unit on a wall strong enough to hold the unit’s weight. Install the outdoor unit on a raised concrete pad or blocks to provide a solid, level foundation. In a location with high winds, anchor the unit and provide an air baffle. In snowy areas (for heat pump models), install the outdoor unit on a raised platform so that it is higher than drifting snow. Provide snow vents.

5)For electrical work, follow local and national electric codes and these installation instructions. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defects are found in electrical work, it will cause electrical shock or fire.

6)Use the specified cable and connect tightly and clamp the cable so that no external force will stress the terminal. Loose wiring may cause overheating at the connection points and a possible fire hazard.

7)Wiring routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause overheating at connection point of terminal, fire or electrical shock.

8)When charging the unit, take care not to let air/substances other than the specified refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion and injury.

9)Do not modify the length of the power supply cord or use an extension cord, and do not share the single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.

!CAUTION!

1)This equipment must be grounded and installed with a ground leakage current breaker. It may cause electrical shock if grounding work doesn’t comply with local/national electric codes.

2)Do not install the unit at place where leakage of flammable gas may occur. If gas leaks and accumulates near the unit, it may cause fire.

3)Carry out drainage piping as mentioned in installation instructions. If not done correctly, water may enter the room and damage personal belongings.

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Contents Installation Manual Table of Contents This symbol denotes item that is Prohibited from doing Indoor unit Selecting installation placeRooftop installation Wall-mounted typeAccessories Single-Dual Zone Single-Tri Zone Single-Quad Zone Drill a hole in the wall Indoor unit installation wall-mounted typeInstallation Plate Connective Pipe and Drainage InstallationIndoor unit Indoor unit installation Outdoor Unit Installation Outdoor installation precautionAnchoring outdoor unit Refrigerant Pipe Connection Refrigerant Pipe Connection Tightening ConnectionFlaring work Electrical Work Connect the cable to the outdoor unit Air purging with vacuum pump Air PurgingWhen Using the Vacuum Pump Leak Check Safety and leakage check Electrical safety check Wellorks. well Testing the System09/2010