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VFH InverterFlex

- Outdoor Ductless Mini-Split

Heat Controller

Caution

• Contact an authorized service technician for repair or maintenance of

this unit

• Contact an authorized installed for installation of this unit.
• Installation work must be performed in accordance with local and

national electrical codes and standards by authorized personnel only

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....... 16

Electrical Work

Electrical Precautions.............................................16

Unit wiring........................................................... 17-21

Initial Start Up and Checks

Field charging and Final Inspection ...................

21-23

Содержание A-VFH18DA-1

Страница 1: ...lworth Ave Jackson MI 49203 517 787 2100 www heatcontroller com INSTALLATION OPERATION MAINTENANCE MANUAL InverterFlex Series Outdoor Ductless Mini Split Heat Pumps A VFH18DA 1 A VFH24TA 1 A VFH30QA 1...

Страница 2: ...dards by authorized personnel only TABLE OF CONTENTS Safety Precautions Warnings and Cautions 3 Introduction Model Nomenclature 4 System Application 5 Installation Instructions Installation Location S...

Страница 3: ...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 ter...

Страница 4: ...es ducted air handlers floor ceiling mount and console units Refer to the indoor Installation Operation and Maintenance manuals of each model for further details NOTE Depending on the type of indoor u...

Страница 5: ...d to be a sole source of heat for a home building While the units can operate in low ambient conditions they cannot provide the full rated capacity for heat at low outdoor temperatures An additional h...

Страница 6: ...installed in a location that does not obstruct the airflow and ensures clearance are maintained Fig 1 If installation location allows the unit to be exposed to strong winds such as coastal applicatio...

Страница 7: ...location of the unit will not be subject to snow drifts heavy accumulation of snow or leaves or other seasonal debris If such a location is unavailable provide an awning for the unit Fig 4 and Fig 5...

Страница 8: ...installation location information on pages 6 and 7 for more details and required clearances FIG 7 18KBTU H 32 09 in 815mm 35 39 in 899mm 12 44 in 316mm 14 88in 378mm 23 46 in 596mm 21 65 in 550mm 15 5...

Страница 9: ...ace Fig 11 Connect a locally purchased drain hose Install hose to the hose barb end of the drain connector Route the hose to drain location away from the unit Repeat for each hole on the base of the u...

Страница 10: ...s are square in relation to the end of the tube Use the proper diameter tube and flare nut sizes recommended by the manufacturer Insulate both lines with Amraflex or equivalent with a wall thickness o...

Страница 11: ...or Unit Capacity Indoor Model Maximum Length B VFH09 49 2ft 15m B VFH12 65 6ft 20m B VFH18 24 82ft 25m Total Allowable Length based on Outdoor Unit Capacity Outdoor Model Zoning Based on Actual Number...

Страница 12: ...2ft 15m 49 2ft 15m 180ft 54 9m However using the total allowable length requirement we see that an A VFH36 Tri Zone system can t exceed 157 5ft 48m Therefore we must reduce the line set length to som...

Страница 13: ...oor units come with a set of copper elbow subassemblies with a female flare nut x male flare fitting Liquid Connections 18K 24K 30K 36K 42K A 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm 1 4 6 35mm B 1...

Страница 14: ...comes with the A VFH42PA 1 model IMPORTANT Due to the use of these subassemblies on the connections of the outdoor unit please be sure to accommodate for about 9 220mm of clearance from the side of th...

Страница 15: ...2mm 5 28 134mm Indoor Units also come with Additional Flare Nuts for ease of installation Per the chart below each indoor model comes with one 1 or two 2 flare nuts in the sizes shown Indoor Unit Flar...

Страница 16: ...ry or death 8 Connect all wiring tightly Loose wiring may cause overheating at connection points and create a possible fire hazard 9 Match terminal strip numbers labels and colors between indoor and o...

Страница 17: ...t Circuit breakers and disconnect switches should be properly sized based on the required codes and the unit s nameplate requirements Fig 12 Check the unit wiring diagram for the number of conductors...

Страница 18: ...form a loop in the cable Fig 13 6 Insulate any unused conductors with electrical tape so that they do not touch any other exposed electrical or metal parts 7 Replace the electrical control cover that...

Страница 19: ...19 Heat Controller VFH InverterFlex Outdoor Ductless Mini Split Fig 15 Fig 16 24KBTU H Electrical Work 18KBTU H...

Страница 20: ...20 VFH InverterFlex Outdoor Ductless Mini Split Heat Controller Fig 17 30KBTU H 36KBTU H Electrical Work Fig 18...

Страница 21: ...al charging of refrigerant depending on line set lengths If the total line set length is less than the amount in the table below no additional Field Charging KBTU H Total allowable length for all indo...

Страница 22: ...ngth so additional refrigerant is required To calculate the additional refrigerant needed multiply the additional line length by 024 oz ft 20g m for a 36KBTU H unit To get the additional line length s...

Страница 23: ...installed main power turned on and wiring refrigerant lines and condensate drain lines properly connected before operating the unit Operation of the unit will depend on the setting of the thermostat o...

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Страница 25: ...25 Heat Controller VFH InverterFlex Outdoor Ductless Mini Split This page is left intentionally blank...

Страница 26: ...26 VFH InverterFlex Outdoor Ductless Mini Split Heat Controller This page is left intentionally blank...

Страница 27: ...27 Heat Controller VFH InverterFlex Outdoor Ductless Mini Split This page is left intentionally blank...

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