Electrical work .................. ...........................................................................................................25
AIR PURGING
Air purging with vacuum pump .....................................................................................................27
Safety and leakage check ............................................................................................................29
TEST RUNNING
Test running ..................................................................................................................................30
Read This Manual
Inside you will find many helpful hints on how to install and test the air conditioner properly.
All the illustrations and specifications in the manual are subject to change without prior notice for product
improvement. The actual shape should prevail.
CAUTION
Contact an authorised service technician for repair or maintenance of this unit.
Contact an authorised installer for installation of this unit.
The air conditioner is not intended for use by young children or infirmed persons without supervision.
Young children should be supervised to ensure that they do not play with the air conditioner.
If the power cord is to be replaced, replacement work shall be performed by authorised personnel only.
Installation work must be performed in accordance with the national wiring Standards by authorised
personnel only.
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Heat Controller, Inc. VMH SerieSInstallation Manual
SAFETY PRECAUTIONS
ead the fol low SAFETY PRECAUTIONS carefu lly before installation.
lectric al work must be installed by a licensed elect rician. Be sure to use the correct rating
f the power p lug and main circuit for the model to be instal led.
ncorrec t installation due to ignoring of the instr uction will cause harm or damage.
The serio usness is classif ied by the followin g indications.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to property.
The items to be followed are classified by the symbols:
Symbol with background white denotes item that is PROHIBITED from doing.
WARNING
1) Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water
leakage, electrical shock fire.
2) Install according to this installation instructions strictly. If installation is defective, it will cause water
leakage, electrical shock fire.
3) Use the attached accessories parts and specified parts for installation. otherwise, it will cause the set to fall,
water leakage, electrical shock fire.
4) Install at a strong and firm location which is able to withstand the set s weight. If the strength is not enough
or installation is not properly done, the set will drop and cause injury.
5) For electrical work, follow the local national wiring standard, regulation and this installation instructions. An
independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found
in electrical work, it will cause electrical shock fire.
6) Use the specified cable and connect tightly and clamp the cable so that no external force will be acted on
the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
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 heat-up at connection point of terminal, fire or electrical shock.
8) When carrying out piping connection, 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 of 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 earthed and installed with earth leakage current breaker. It may cause electrical
shock if grounding is not perfect.
2) Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and
accumulates at surrounding of the unit, it may cause fire.
3) Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water
may enter the room and damage the furniture.
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Installation Manual VMH SerieSHeat Controller, Inc.
Heat Controller, Inc. VMH SerieSInstallation Manual
Combinations
Unit A
Unit B
9k
—
12k
—
18k
—
9k
9k
9k
12k
Combinations
Unit A
Unit B
Unit C
9k — —
12k — —
18k — —
9k
9k
—
9k
12k
—
9k
18k
—
12k
12k — TRI (1x3)
9k
9k
9k
Combinations
Unit A
Unit B
Unit C
Unit D
9k — —
—
12k — —
—
18k — —
—
9k
9k — —
9k
12k — —
9k
18k — —
12k
12k — —
12k
18k — —
18k
18k — —
9k
9k
9k
—
9k
9k
12k — 9k
9k
18k
—
9k
12k
12k
—
12k
12k
12k
—
QUA(1x4)
9k
9k
9k
9k
Unit combinations
NOTE: The total capacity of indoor air handlers can not exceed the nominal capacity of the outdoor unit.
The minimum quantity of indoor air handlers is one on any outdoor unit, whether it is a dual, tri, or quad
zone.
Indoor unit combinations for A-VMH18DC-1
Comb.
Dual(1x1)
Dual (1x2)
Indoor unit combinations for A-VMH27TC-1
Comb.
TRI (1x1)
TRI (1x2)
Indoor unit combinations for A-VMH36QC-1
Comb.
QUA (1x1)
QUA (1x2)
QUA (1x3)
Available indoor models:
High Wall MountCeiling Cassette
9kB-VMH09FC-1N/A
12kB-VMH12FC-1B-VCH12FC-1
18kB-VMH18FC-1B-VCH18FC-1
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Installation Manual VMH SerieSHeat Controller, Inc.
INSTALLATION INSTRUCTIONS
NOTE: Indoor units shown can be replaced with ceiling cassettes.
More th an 15 cm
More th an 12 cm
2
1
3
Air fil ter
Remot e
con troller
Air fil ter
Remot e
con troller
Air fil ter
Remot e
contr oll er
One-Two
One-Thr ee
One-Fou r
One-Fiv e
5
Remot e
con troller
Air f il ter
Loop a
conne cti ve
cable
Remot e
contr oll er
Air out
Air f il ter
4
6
CAUTIONS
This illustration is fo r explanation purposes only.
The actual shape of your ai r condtioner may be
slightl y different.
Copper li nes must be insulated independently
CAUTION
NOTE : Ceiling cas settes come w ith an
opti onal wall mou nted wirele ss thermo stat
that c an take the pla ce of the wirel ess
remo te controll er.
6
Heat Controller, Inc. VMH SerieSInstallation Manual
The powerwiring should always follow NEC and local codes,with respectto the unit’s, rating plate.See
installation manual for additionalinformation. Main power connection is 208/230V/1PH~60HZ.
The communicating cable,which connects between the indoor and outdoorunitsmustmeet allNEC and
local codes,with respect to the unit’srating plate.We recommend using 14AWG/4 conductor Stranded THHN
6
ФФV cable.
Pipe length and elevation
Pipe size
Unit
Gas inch
Liquid inch
(mm)
9K 3/8’’ (Ф9.52) 1/4’’ (Ф6.35)
12K/18K 1/2’’ (Ф12.7) 1/4’’ (Ф6.35)
Max. Total length for all rooms
(mm)
Standard
length
(m)
(5)
16.5ft
Dual-zone(m)Tri-zone(m) Quad-zone(m)
(30)100ft (45)150ft (60)200ft
Max.
Elevation
B (m)
(10)
33ft
Max.
Length
A (m)
(15)
50ft
2XWGRRUXQLW
2LOWUDS
,QGRRUXQLW
$
%
Additional
refrigerant
(g/m)
(20)
0.2 oz/ft
NOTES:
• Do not exceed 50 ft. (15m) per each indoor unit.
• Minimum pipe lenght of 10ft (3m) is required for each indoor unit.
• Oil trap should be installed per (3-5 meters) 10-15 ft., where outdoor unit is located above indoor unit.
• Outdoor connections are 1/4” (f6.35 mm) liquid and 3/8” (f9.52 mm) gas, therefore a are nut adapter
is provided with all 12/18k indoor sections.
7
Installation Manual VMH SerieSHeat Controller, Inc.
INSTALLATION INSTRUCTIONS
1. Selecting Inst allatio n Place
More than 6 in.(15cm)
Read completely, then follow step by step.
Indoor unit
More than 5 in.(12cm)
More than 5 in.(12cm)
Do not expo se the indoor unit to heat or steam .
Select a pl ace where there are no obstacles
in front or a round the unit.
Make sure t hat condensation drainage can
be conven iently routed away.
Do not inst all near a doorway.
More than 6.5 ft.(2.0m)
Fig. 1
Ensure th at the proper clearance is maintained per F ig.1.
Use a stud fi nder to locate studs to prevent u nnecessary damage to the wall.
Variati ons in pipe length may require adjustment t o refrigerant charge.
There sho uld not be any direct sunlight. Otherwise , the sun will fade the plastic cab inet and
affect its ap pearance . If unavoidable, sunlight pr eventi
on should b e taken into consideration.
Outdoor unit
More than 1 ft.(30cm)
If an awnin g is built over the outdoor unit to
prevent d irect sunlight or rain exposure,
More than 1 ft.(30cm)
make sure t hat heat radiation from the
condens er is not restricted.
Ensure th at the clearance is maintainedper Fig 2.
More than 2 ft.(60cm)
Do not plac e animals and plants in the path
of the air in let or outlet.
Take the air co nditioner weight into account
and selec t a place where noise and vibration
will not be a n issue.
More than 6.5 ft.(200cm)
Fig. 2
Clearance
Select a pl ace so that the warm air and noise from
the air con ditioner do not disturb neighbors.
Outlet
Inlet
A 11” (280mm)
Outlet
7.5ft (>2300)
Fig.13
3.5ft (>1000)
3.5ft (>1000)
Fig.14
Ground
3.5ft (>1000)
3.5 ft (>1000)
8
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