INSTALLATION MANUAL
Contents
1. Flaring work Main cause for refrigerant leakage is due to defect in the flaring work Carry out correct flaring work using the following procedure A Cut the pipes and the cable 1 Use line set kit or copper tubes pipes purchased locally 2 Measure the distance between the indoor and the outdoor unit 3 Cut the pipes tubes a little longer than the measured distance 4 Cut the cable 1 5m longer than the pipe tube length B Burr removal Completely remove all burrs fromthe cut cross section of pipe tube 2 Putthe end of the copper tube pipein a downward directionas youremove burrsin order to avoid dropping burrs into the tubing C Putting nut on Remove flare nuts attached to indoor and outdoor unit then putthem on pipe tube having completed burr removal not possible to put them on after flaring work 10 Seal Drain joint Base pan hole of outdoor unit D Seal Drain pipe Fig 46 x XxX K A h Oblique ee Burr DO a D Pipe OD Reamer 2 gt K Fig 48 Flare nut Copper tube Fig 49 VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc Refrigerant Pipe Connection D Flaring work Firmly hold copper pipe in a die in the dimension shown in the table below Outer diameter Ain mm in mm Max Min o 1 4 6 35 0 5 1 3 0 276 0 7 3 8 9 35 0 63 1 6 0 394 1 0 1 2 12. drain out the condensed water smoothly Shield pipe Wall TU ee P Extension drainhose Drain hose Wall Cap Fig 8 Rear right piping SS gt Right hand piping Rear left piping Left hand piping Fig 9 Indoor unit outline Connective pipe Indoor unit Ponding box Connective Pipe room cable L Connective pipe Wrapping belt Drain hose Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split 4 Indoor unit installation 1 2 Pass the piping through the hole in the wall Put the upper claw at the back of the indoor unit on the upper hook of the installation plate move the indoor unit from side to side to see that it is securely fastened see Fig 12 Separate the bottom of the indoor unit from the wall by inserting spacer etc between the indoor unit and the wall Remove spacer after piping is complete Push the lower part of the indoor unit up on the wall then move the indoor unit from side to side up and down to check if it is secure Upper hook f oating prevention suppo Spacer Low hook Fig 12 VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc Outdoor Unit Installation Outdoor installation precaution Install the outdoor unit on a rigid base to prevent increasing noise level and vibration e Determine the air outlet direction where the disch
3. 0cm More than 24in 60cm Fig 2 e Do not place animals and plants in the path of the air inlet or outlet e Take the air conditioner weight into account and select a place where noise and vibration will not be an issue e Select a place so that the warm air and noise from the air conditioner do not disturb neighbors Rooftop installation e If the outdoor unit is installed on a roof structure be sure to level the unit e Ensure the roof structure and anchoring method are adequate for the unit location e Consult local codes regarding rooftop mounting e If the outdoor unit is installed on roof structures or external walls this may result in excessive noise and vibra tion and may also be considered a non serviceable installation Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split Tools needed for installation Level gauge Screwdriver Vacuum pump Electric drill Hole core drill p 25in 65mm Gauge manifold Flaring tool set Users manual Torque wrench hoe Spanner half union Pipe cutter Hexagonal wrench 1 5in 4mm Measuring tape Gas leak detector Accessories Number Name of Accessories Remote Controller Self tapping Screw B ST2 9X10 Remote controller holder a a ee Note The seal and drain connector elbow are only available with some models Your particular product may not come with these parts factory supplied however they can be purchased locally All other parts requi
4. 2 7 0 709 1 8 0 394 1 0 Tightening Connection r e e Align the center of the pipes e Sufficiently tighten the flare nut with fingers and then tighten it with a spanner and torque wrench as shown in Fig 51 amp 52 A Indoor unit tubing Flare nut Pipings Outer Tightening Additional tightening Diameter torque torque Pe 1 4 6 35 Ee Bees BE See Beie GE E e Caution Excessive torque can break nut depending on Fig 52 installation conditions 11 Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split Electrical Work Electric safety regulations for the initial Installation 1 Power voltage should be in the range of 90 110 of rated voltage 2 The creepage protector and main power switch with a 1 5 times capacity of Max Current of the unit should be installed in power circuit 3 Ensure the air conditioner is grounded well 4 Connect wiring to the unit according to the electrical diagram located on the panel of the outdoor unit 5 All wiring must comply with local and national electrical codes and be installed by qualified and skilled electricians 6 An individual branch circuit and single receptacle used only for this air conditioner must be available CAUTION Never fail to have an individual power circuit specifically for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the in side of control cover The screws which fasten t
5. HEAT CONTROLLER INC INSTALLATION MANUAL VMH 09 12 18 27 36 Version C InverterFlex Ductless Mini Split Heat Pump Heat Controller Inc e 1900 Wellworth Ave e Jackson MI 49203 517 787 2100 e www heatcontroller com VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc Table of Contents Safety Precautions Warnings and eege 2 Installation Instructions Selecting an installation location ecceeeeneeeeeeeeeeeeeeeneeeeeneceees 3 EEN A System mMstallatiON E 5 Indoor unit installation EE 6 Outdoor unit installation EE 9 Refrigerant Pipe Connection Refrigerant e eu ee 10 Electrical Work Electical eegene 12 Air Purging Air purging with vacuum DUMP aserisesssacenacscagioutienercarennshiadautelawtlancceetcdenda 14 Safety and refrigerant leak check ceeeeeeeeeeeeeeeeeeeeeeeenenenenes 16 Testing the System TS TEE 17 A Caution e Contact an authorized service technician for repair or maintenance of this unit e Contact an authorized installer for installation of this unit e Installation work must be performed in accordance with local and national electrical codes and standards by authorized personnel only Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split e Read the follow SAFETY PRECAUTIONS carefully before installation e Electrical work must be performed by a licensed electrician Be sure to use the correct rating
6. Length Per Maximum Total Line Length Btu h Combination Indoor Unit Elevation M Max in 18k Dual Zone A B 16 5 ft 5m 32 ft 10m 10 ft 3m 100 ft 30 5m 27k Tri Zone A B C 16 5 ft 5m 32 ft 10m 10 ft 3m 150 ft 45m 36k QuadDual Zone A B C 16 5 ft 5m 32 ft 10m 10 ft 3m 200 ft 60m 14 VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc Air Purging e When relocating the unit to another place perform evacuation using vacuum pump e Make sure the refrigerant added into the air conditioner is liquid form Caution in handling the packed valve e Open the valve stem until it hits against the stop Do not try to open it further e Securely tighten the valve stem cap with a spanner or the like e Valve stem cap tightening torque see tightening torque table When Using the Vacuum Pump For method of using a manifold valve refer to its operation manual 1 Completely tighten the flare nuts A B C D connect the mani fold valve charge hose to a charge port of the low pressure valve on the gas pipe side 2 Connect the charge hose connection to the vacuum pump 3 Fully open the Lo handle of the manifold valve 4 Operate the vacuum pump to evacuate After starting evacua tion slightly loose theflare nut of the Lo valve on the gas pipe side and check that the air is entering Operation noise of the vacuum pump changes and a compound meter indicates 0 in
7. arged air is not blocked If the installation place is exposed to strong winds ensure the unit is lengthwise along the wall or provide a suitable air baffle e If suspending the unit follow the bracket manu facturer s instructions e Use a raised concrete pad or concrete blocks to provide a solid level surface Securely anchor the unit down with bolts e Be sure there are no obstacles which block radiat ing air e In a snowy area install the outdoor unit on a raised platform that is higher than drifting snow Anchoring outdoor unit Anchor the outdoor unit with 5 16 8mm or 3 8 10mm bolt and nut tightly and horizontally on a concrete or rigid mount Outdoor unit dimensions Mounting Dimensions WxHxD in mm Ain mm B in mm 29 9 x 23 2 x 11 2 760 x 590 x 285 20 9 530 11 4 290 33 3 x 27 4 x 13 2 845 x 695 x 335 22 560 13 2 335 35 2 x 33 9 x 13 0 895 x 860 x 330 23 2 590 13 1 333 39 0 x 38 0 x 14 0 990 x 965 x 355 24 5 623 14 4 366 Air outlet Fig 45 Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split REFRIGERANT PIPE CONNECTION Drain joint installation Fit the seal into the drain elbow then insert the drain joint into the base pan hole of outdoor unit rotate 90 to securely assemble them Connecting the drain joint with an extension drain hose locally purchased is recommended Refrigerant pipe connection 1
8. ater flow by a rise drain hose into water Fig 7 VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc 2 When connecting extension drain hose insulate the connecting part of extension drain hose with a shield pipe do not let the drain hose slack Connective pipe installation 1 For the left hand and right hand piping remove the pipe cover from the side panel 2 For the rear right hand and rear left hand piping install the piping as shown in Fig 9 Bend the connective pipe to be laid at 4in 43mm height or less from the wall 3 Fix the end of the connective pipe Refer to Tightening Connection in REFRIGERANT PIPING CONNECTION 4 Piping and wrapping Bundle the tubing connecting cable and drain hose with tape securely evenly as shown in Fig 11 e Because the condensed water from rear of the indoor unit is gathered in ponding box and is piped out of room Do not put anything else in the box CAUTION e Connect the indoor unit first then the outdoor unit e Do not allow the piping to let out from the back of the indoor unit e Be careful not to let the drain hose slack e Heat insulate both of the auxiliary piping e Be sure that the drain hose is located at the low est side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit e Never intercross nor intertwine the power wire with any other wiring e Run the drain hose sloped downward to
9. e 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 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 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 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 A CAUTION 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 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 Carry out drainage piping as mentioned in installation instructions If not done correctly water may enter the room and damage personal belongings VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc 1 Wall mounted type More than Gin B
10. er finishing installation the serviceman can use the electroprobe and multimeter to perform the electrical leakage check Turn off the unit immediately if leakage happens Check and find out the solution ways till the unit operate properly Refrigerant Leak Check 1 Soap water method Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections with a soft brush to check for leakage of the connecting points of th piping If bubbles come out the pipes have leakage 2 Leak detector Use the leak detector to check for leakage CAUTION A Lo packed valve B Hi packed valve C and D are ends of indoor unit connection NOTE The illustration is for explanation purposes only The actual order of A B C and D on the machine may be slightly different from the unit you purchased The actual shape shall prevail 16 Indoor unit check point Outdoor unit check point a b c d h i j kare points for one two type a b c d e f h i j k m n are pointsfor one three type Fig 63 Indoor unit check point Outdoor unit check point One four type Fig 64 VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc Testing the System Perform test operation after completing gas leak check at the flare nut connections and electrical safety check S Check that all tubing and wiring have been properly connected Check that the gas and liquid side service
11. he wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires Specification of power source Confirm that electrical capacity is sufficient See that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate Confirm that the cable thickness is as specified in the power source specifica tion Always install an earth leakage circuit breaker in a wet or moist area The following would be caused by voltage drop Vibration of a magnetic switch which will damage the contact point fuse breaking disturbance of the normal function of the overload The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active phase conductors 12 VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc Electrical Work Wiring connection NOTE Before performing any electrical work turn off the main power to the system AA cautions e Do not touch the capacitor even if you have disconnected the power or electric shock hazard may occur For your safety you should wait at least 5 minutes after the power has been disconnected before repairing e The power is suppl
12. ied from the Outdoor Unit Up to four indoor units are connected with signal wires or power cords Use only NEC approved wire Connect the cable to the outdoor unit 1 Remove the electrical control board cover from the outdoor unit by loosening the screw as shown in Fig 53 2 Connect the connective cables to the terminals as identified with their respective matched num bers on the terminal block of indoor and outdoor units 3 Secure the cable onto the control board with the cord clamp 4 To prevent rain water from running along the connective cable to the inside of the buiding room where the unit is located make a U bend trap 5 Insulate unused cords conductors with PVC tape Ensure that they do not touch any electrical or metal parts cautions Make sure to connect the indoor unit A B C D to the Hi and Lo valve and terminals of signal wires A B C D of outdoor unit as identified with their respective matched connection Wrong wiring connections may cause some electrical parts to malfunction Strip wire as shown Connection Cable Fig 54 APAA EES EG EI ODD A L LI Ee Taam anys NOAA KT KEE QD Gg TOB TOC Y G Y G Ca d eee Y G Fig 57 13 Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split Air Purging Air and moisture in the refrigerant system have undesirable effects as indicated belo
13. of the power cord and main circuit for the model to be installed e Incorrect installation due to ignoring the instruction will cause harm or damage H The seriousness is classified by the following indications WARNING This symbol indicates the possibility of death or serious injury A CAUTION This symbol indicates the possibility of injury or damage to property The items to be followed are classified by the symbols Le This symbol denotes item that is PROHIBITED from doing A WARNING Do not install without an authorized servicer installer Install according to this installation instruction If installation is defective it can cause water leakage or electrical shock fire Use the supplied accessories and specified parts for installation 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 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 Use the specified cabl
14. om Selecting installation place Read completely then follow step by step Indoor unit More than More than Sin 12cm 5in 12cm e Do not expose the indoor unit to heat or steam e Select a place where there are no obstacles in front or around the unit e Make sure that condensation drainage can be conveniently More than 6 5ft 2 0m routed away Fig 1 e Do not install near a doorway e Ensure that the space on the left and right of the unit is more than 5in 12cm e Use a stud finder to locate studs to prevent unnecessary damage to the wall e The indoor unit should be installed on the wall at a height of 6 5ft 2m or more from the floor e The indoor unit should be installed allowing a minimum clearance of 6in 15cm from the ceiling e Any variations in pipe length may require adjustment to refrigerant charge e Do not expose unit to direct sunlight The sun will fade the plastic cabinet and affect its appearance Outdoor unit More than 12in 30cm e If an awning is built over the outdoor unit to prevent direct sunlight or rain exposure make sure that heat py eg radiation from the condenser is not restricted in 30cm e Ensure that the clearance around the back of the unit is more than 12in 30cm and left side is more than 12in 30cm The front of the unit should have more than 79in 200cm of clearance and the connection side right side should have more than 24in 60cm of More than clearance 79in 20
15. red for installation must be purchased separately locally including but not limited to tools line sets insulation etc cet Drain joint lt VMH InverterFlex Mini Split INSTALLATION MANUAL Heat Controller Inc More than Din Zem T Air filter 6 Remote controller controller controller dE Single Dual Zone rr Single Tri Zone Single Quad Zone TE eee I ii e This illustration is for explanation purposes only The actual shape of your air condtioner may be slightly different e Copper lines must be insulated independently 1 I 1 1 l AA cautions i I CAUTION e Use a stud finder to locate studs to prevent unnecessary damage to the wall e A minimum pipe run of 9 8 ft 3m is re quired to minimize vibration amp excessive noise e Two of the A B and C air flow direc tions should be free from obstructions for the outdoor unit Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split Indoor unit installation wall mounted type Correct orientation S of Installation Plate 1 Installation Plate 2 A Mount the installation plate horizontally on struc CL C D v xX xX tural parts studs of the wall with proper clear ance around the installation plate B If the wall is made of brick concrete or the like ers drill eight 8 5mm 0 2in diameter holes in the wall Insert anchor for appropriate mo
16. stead of minus 5 After the evacuation is complete fully close the Lo handle of the manifold valve and stop the operation of the vacuum pump Evacuate for 15 minutes or more and check that the compound meter indicates 29 92 inHg 1x105Pa 6 Turn the stem of the packed valve B about 45 counterclock wise for 6 7 seconds after the gas comes out then tighten the flare nut again Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure 7 Remove the charge hose from the Low pressure charge hose 8 Fully open the packed valve stems B and A 9 Securely tighten the cap of the packed valve 15 Compound meter Refrigerant Outdoor dek unit A Gas side C BOT iquid side Packed valve Half union e Cap Ka Valve stem Fig 61 Manifold valve Pressure gauge BR Vacuum pump Low pressure valve Fig 62 Heat Controller Inc INSTALLATION MANUAL VMH InverterFlex Mini Split Air Purging Safety and Leak Check Electrical safety check Perform the electric safe check after completing installation 1 Insulated resistance The insulated resistance must be more than 2M2 2 Grounding work After finishing grounding work measure the grounding resistance by visual detection and grounding resistance tester Make sure the grounding resistance is less than 42 3 Electrical leakage check performing during test run During test operation aft
17. unting screws C Fit the installation plate on the wall with eight 8 Gin 15cm or more to ceiling type A screws Indoor unit outline Installation plate NOTE Sin 12em or 14 77 0 _ more o wat more to wall E 45 Fit the Installation Plate and drill holes in the wall ac cording to the wall structure and corresponding mount Left rear side Right rear side refri ing points on the installation plate The Installation GE Al DE ain 65 Plate may be slightly different according to the different models of indoor unit 1 Model Ain mm B in mm Indoor unit outline Pon 15cm or more to ceiling Installation plate 28 710 10 250 lt 12 000 Btu h 30 750 10 250 Sin 12cm or K o Sin 12cm or 31 780 11 270 Pig 32 790 10 265 Right refrigerant gt 12 000 Btu h 31 780 11 270 lt pipe hole d 3in 465 32 815 11 280 2 Fig 5 2 Drill a hole in the wall i A Determine hole positions according to the dia gram detailed in Fig 5 Drill one 1 hole 3in Wall 65mm slanting slightly toward the outdoors ouas as shown in Fig 6 Indoor E p B Always use wall hole conduit when drilling metal Z J E grid metal plate or the like ES 8 3 Connective Pipe and Drainage Installation A S A Run the drain hose sloping downward Do not bie S ig Ke install the drain hose as illustrated in Fig 7 AA 3 Do not put the end of Do not block w
18. valves are fully open 1 Connect the power press the ON OFF button on the remote controller to turn the unit on 2 Use the MODE button to select COOL HEAT AUTO and FAN to check if all the functions work well 3 When the ambient temperature is too low lower than 62 2 F 17 C the unit cannot be controlled by the remote controller to run in cooling mode manual operation can be used Manual opera tion is used only when the remote controller is disable or maintenance necessary Hold the panel sides and liftthe panelup toan angle until it remains fixed with a clicking sound Press the Manual control button to select the AUTO or COOL the unit will operate under Forced AUTO or COOL mode see User Manual for details 4 Thetest operation should last about 30 minutes d Arm Ih Manual control Button Manual control AUTO COOL utton Fig 65 17 Design material performance data and components subject to change without notice HEAT CONTROLLER INC 1900 Wellworth Ave Jackson MI 49203 Ph 517 787 2100 Fax 517 787 9341 THE QUALITY LEADER IN CONDITIONING AIR www heatcontroller com 03 2012
19. w e Pressure in the system rises e Operating current rises e Cooling or heating efficiency drops e Moisture in the refrigerant circuit may freeze and block capillary tubing e Water may lead to corrosion of parts in the refrigeration system Therefore the indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacuated to remove any noncondensables and moisture from the system Air purging with vacuum pump Preparation e Check that each tube both liquid and gas side tubes between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage e Unit charge is located on the rating plate e Unit is precharged to include enough refrigerant for 16 5 ft 5m of line set length per each indoor unit allowed Example A quad zone 36k outdoor unit will accept up to four indoor units at 16 5 ft 5m each for a total factory charge to handle 66 ft 20m of total line set length e Charge adjustment is not required for line set lengths less than 16 5 ft 5m e Add 2 oz ft of additional charge for line set lengths above 16 5 5m per indoor unit e The 12k and 18k indoor units include a line set adaptor for the outdoor section Capacity Pipe Size Standard Capacity Indoor Unit
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