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Table of Contents
Related Manuals for Heat Controller A-VFH24TA-1
Summary of Contents for Heat Controller A-VFH24TA-1
- Page 1 INSTALLATION, OPERATION & MAINTENANCE MANUAL InverterFlex Series ® Outdoor Ductless Mini-Split Heat Pumps A-VFH18DA-1 A-VFH24TA-1 A-VFH30QA-1 A-VFH36QA-1 A-VFH42PA-1 Heat Controller • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com...
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Page 2: Table Of Contents
VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® TABLE OF CONTENTS Safety Precautions Warnings and Cautions..........3 Introduction Model Nomenclature..........4 System Application............5 Installation Instructions Installation Location Selection....... 6-7 Outdoor unit installation..........8-9 Condensate Drain............9 Refrigerant Line Installation Refrigerant line set installation......10-15 Leak test, evaluation and release of refrigerant.. -
Page 3: Safety Precautions Warnings And Cautions
Heat Controller VFH InverterFlex - Outdoor Ductless 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. -
Page 4: Introduction Model Nomenclature
VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® Inverter Series System Introduction: The InverterFlex series allows one outdoor unit to match with up to five indoor units, depending on capacity. The model nomeclature of the outdoor unit defines the number of available base valves to connect indoor unit. For example a Tri-zone unit can accept up to 3 zones or three indoor units. -
Page 5: System Application
Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Inverter Series System Introduction: System Selection: System Application: The total capacity of ALL the indoor units can not This system is not designed to be a sole source of exceed 150% of the capacity of the outdoor unit. -
Page 6: Installation Instructions Installation Location Selection
VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® Selecting installation place Outdoor unit • Unit must be installed in a location that does not Choose a location that places the outdoor unit as obstruct the airflow and ensures clearance are close to the indoor unit as possible. -
Page 7: Rooftop Installation
Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® 3. The awning should be at least 2 ft. (0.6m) away • Avoid areas where water, snow, or ice may fall from from the top of the unit’s housing. the roof onto the unit. -
Page 8: Outdoor Unit Installation
VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® Outdoor Unit Installation • In a snowy area, slab should be higher than drifting • Install the outdoor unit on a rigid base (such a snow. concrete slab) to prevent increasing noise level and •... -
Page 9: Condensate Drainage
Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® FIG. 9 36KBTU/H 39.13 in. (994mm) 36.22 in. (920mm) FIG. 10 42KBTU/H 42.8 in. (1087mm) 40 in. (1015mm) 9.02 in. (153mm) 24.62 in. (610mm) 7.52 in. (191mm) 24.84 in. (631mm) Condensate Drainage Fig. -
Page 10: Refrigerant Line Installation
Refrigerant Line Set Installation • Insulate both lines with Amraflex or equivalent with a wall thickness of at least 3/8". 1. Purchase line sets through a Heat Controller distributor with consideration of the minimum • Use copper tubing suitable to withstand and maximum line lengths. - Page 11 Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Refrigerant Line Set Installation Allowable Length and Height of Line Set VFH InverterFlex System Line Set Requirements = Length of line set from farthest indoor unit For systems with only one indoor unit, the maximum line set length (Lx) is:...
- Page 12 Between each (L1+L2) (L1+L2+L3) (L1+L2+L3+L4) (L1+L2+L3+L4+L5) Indoor & Indoor Unit Outdoor (H1) (H2) VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® A-VFH18/24/30 98.4ft 172.25ft (52.5m) 229.6ft (70m) 24.6 ft (7.5m) (30m) 24.6 ft (7.5m) Refrigerant Line Set Installation A-VFH36/42 104.9ft 157.5ft (48m)
- Page 13 Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Refrigerant Line Set Installation Due to the mix and match nature of the InverterFlex™ system, reducing and/or expansion flare connection subassemblies are provided with some models to accommodate for the different flare connections sizes between indoor and outdoor units.
- Page 14 Subassemblies for A-VFH24TA-1, A-VFH30QA-1 Outdoor Units: For models A-VFH24TA-1 and A-VFH30QA-1, two (2) subassemblies consisting of a straight piece of copper with a female flare nut x male flare fitting, are provided to connect any indoor units that have 1/2” (12.7mm) gas connections with the...
- Page 15 Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Part # Flare Nut Size ① Flare Fitting ② Length L1 06643008 3/8” (9.52mm) 1/2” (9.52mm) 5.28” (134mm) Indoor ② Flare Fitting 1/2” Gas (w/Cap-not shown) Connects to Indoor Unit Connection ①...
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Page 16: Leak Test, Evaluation And Release Of Refrigerant
VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® Leak Test, Evacuation & Release of Refrigerant The recommended procedure for leak test, evacuation, WARNING and release of refrigerant is outlined below: 1. Complete the final piping connections to the indoor... -
Page 17: Unit Wiring
Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Unit Wiring The contractor is to provide an individual branch WARNING circuit for over current protection for the unit as required by code. Some codes may require a disconnect between the indoor and outdoor unit. -
Page 18: Electrical Work
VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® Electrical Work Outdoor unit power and Fig. 13 communication cable wiring Air inlet (rear) 1. Remove the electrical control cover from the Air inlet (side) outdoor unit (Fig. 13). Cover 2. Connect power supply wires to the outdoor unit’s terminal strip (Fig. - Page 19 Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Electrical Work Fig. 15 18KBTU/H Fig. 16 24KBTU/H...
- Page 20 VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® Electrical Work Fig. 17 30KBTU/H Fig. 18 36KBTU/H...
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Page 21: Initial Start Up And Checks Field Charging And Final Inspection
Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Electrical Work Fig. 19 42KBTU/H Field Charging Unit performance, efficiency, and life depends, to refrigerant is needed. a large extent, on a proper system charge. Time If the total length or refrigerant lines for all models is... - Page 22 VFH InverterFlex - Outdoor Ductless Mini-Split Heat Controller ® Field Charging Example 36KBTU/H Four 9KBTU/H Outdoor Unit Indoor Units OUTDOOR UNIT INDOOR UNIT LINE SET/LENGTH a / 30 ft (9m) 9KBTU/H b / 35 ft (10.6m) 9KBTU/H 36KBTU/H c / 40 ft (12.2m) 9KBTU/H c / 50 ft (15.2m)
- Page 23 Heat Controller VFH InverterFlex - Outdoor Ductless Mini-Split ® Final Inspection Do a visual inspection of the entire installation. Complete any final steps and clean up the work areas. Ensure that all units—indoor and outdoor—are working properly. IMPORTANT! All panels must be installed, main power turned on and wiring, refrigerant lines, and condensate drain lines properly connected before operating the unit.
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