Comfortaire Century VMH09SU Series User manual

Installation and Operation Manual
VMH09/12/18/24 SU Series
Inverter Single Zone
Ductless Mini-Split
www.marsdelivers.com

1900 Wellworth
Jackson, MI 49203
Attention
Attention: Smartphone Compatibility
The following indoor unit models are compatible with smartphone operation.
Please order accessory; 7800-208 and follow the enclosed instructions.
B-VMH09SU-1, B-VMH12SU-1, B-VMH18SU-1, B-VMH24SU-1
ALL INVERTER MINI-SPLITS REQUIRE 14-4 STRANDED
WIRE BETWEEN THE INDOOR AND OUTDOOR UNITS
(NO EXCEPTIONS)
14 AWG 4/C TRAY CABLE
A14/4SRBTHHNBK
14 AWG (19/0147) BC 4/C, THHN CONDUCTORS POWER & CONTROL
TRAY CABLE TYPE TC CABLE FOR INSTALLATION IN
ACCORDANCE WITH ARTICLE 336 AND OTHER APPLICABLE PARTS
OF THE NATIONAL ELECTRICAL CODE. 600V (UL) E123517 DIRECT
BURIAL SUNLIGHT RESISTANT PVC JACKET
10/25/16
MADE IN USA BLACK
RoHS Compliant
MARS Part:
7603-900: 30’
7603-901: 55’
7603-902: 250’

Installation and Operation Manual - VMH 09/12/18/24 SU Series
2
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
Installation Instructions
Installation Location Selection ..........................................................................................4-5
Accessories ......................................................................................................................... 6
Indoor unit installation .......................................................................................................7-8
Outdoor unit installation ....................................................................................................... 9
Refrigerant Pipe Connection
Refrigerant line set installation .......................................................................................... 10
Leak test, evaluation and release of refrigerant ................................................................ 11
Electrical Work
Electrical Precautions ........................................................................................................ 11
Unit wiring .......................................................................................................................... 12
Initial Start Up and Checks
Indoor/outdoor communication cable ................................................................................ 13
Outdoor power/communication wiring ............................................................................... 14
Field charging and nal inspection .................................................................................... 15
VMH 09/12/18/24 SU/30 SD Inverter Mini-Split

Installation and Operation Manual - VMH 09/12/18/24 SU Series
3
Heat Controller
WARNING!
!
CAUTION!
!
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to property.
This symbol denotes item that is PROHIBITED.
The items to be followed are classied by the symbols:
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/re.
3) Use the supplied accessories and specied 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 install the outdoor unit on a raised platform 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 re.
6) Use the specied cable and connect tightly. Clamp the cable so that no external force will stress the
connections. Loose wiring may overheat at the connection points and create a possible re hazard.
7) Wiring routing must be properly arranged so that control board cover is xed properly. If control board
cover is not xed perfectly, it will cause overheating at connection point of terminal, re or electrical shock.
8) When charging the unit, take care not to let air/substances other than the specied 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 re or electrical shock.
1) This equipment must be grounded It may cause electrical shock if grounding work doesn’t comply with
local/national electric codes.
2) Do not install the unit in places where leakage of flammable gas may occur. If gas leaks and
accumulates near the unit, it may cause re.
3) Carry out drainage piping as mentioned in installation instructions. If not done correctly, water may
enter the room and damage personal belongings.
WARNING!
!
CAUTION!
!
• 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 instructions will cause harm or damage.
nThe seriousness is classied by the following indications.
VMH 09/12/18/24 SU/30 SD Inverter Mini-Split
3

Installation and Operation Manual - VMH 09/12/18/24 SU Series
4
4
Heat Controller
Selecting installation place
Choose a location that places the outdoor unit as close to the indoor unit as
possible.
The maximum unit separation and vertical lift (compressor above
the
evaporator) must be taken into account. Do not exceed allowable
refrigerant
line lengths.
Indoor unit
• Unit must be installed in a location that does not obstruct the ow of air
and ensures clearances are maintained. (Fig. 1)
• The site must support the weight of the unit.
• The site must be easily accessible for cleaning or replacement of the air
filter, maintenance and service.
• The indoor unit should be mounted high up on the wall toward the
ceiling, leaving a minimum of 6” (150mm) of space between the ceiling
and the top of the indoor unit. (Fig. 1)
•
•
Due to the possibility of electronic interference with other devices, it is
recommended that there should be at least 3 ft (1 meter) between the unit
and other devices/appliances such as televisions or radios.
The unit should be installed away from possible exposure to fire, smoke,
or flammable gases and be protected from direct sunlight (sunlight can
interfere with the signal between the unit and the remote controller.
Outdoor unit
• If installation location allows the unit to be exposed to strong winds (such
as coastal applications), ensure that the unit has a wind barrier. This will
assist with preventing strong gusts of wind from entering the unit’s cabinet
and interfering with the fan operation. (Fig. 3 and Fig. 4)
At least
30in.(70cm)
Fig. 1
Fig. 2
Fig. 3 Fig. 4
Correct
Incorrect
wind gusts
Incorrect
Strong
wind
Strong
wind
Barrier
Correct
At least
12in.(30cm)
At least 24in.(60cm)
At least 4in.(10cm)
Recommended 12in. (30cm)
Minimum clearance - 3"
Recomended clearance - 6"
At least 64" (162cm)
At least 6in.(15cm) At least 6in.(15cm)
VMH 09/12/18/24 SU/30 SD Inverter Mini-Split
Dégagement minimum - 7,5 cm
Dégagement recommandé - 15cm
Refer to the following diagram to ensure
proper distance from walls and ceiling:
Minimum clearance - 64”
0"
M
M
i
i
n
n
i
i
m
m
u
u
m
m
c
c
l
l
e
e
a
a
r
r
a
a
n
n
c
c
e
e
-
-
3
3
"
"
0"
Manuel d’installation et d’utilisation - Série VMH 09/12/18/24SU
4
Installationand Operation Manual - Série VMH 09/12/18/24 SU KERR Controls Limited
4
Choix de l'endroit d'installation
Choisissez un endroit où vous pourrez installer l'unité extérieure le plus près
possible de l'unité intérieure. La distance maximum de séparation et la hauteur de
levée (le compresseur au-dessus de l'évaporateur) doivent être prises en
considération. Ne dépassez pas les longueurs des conduites de réfrigérant
permises.
Unité intérieure
•
L'unité doit être installée dans un endroit qui ne gêne pas la circulation de l'air et
assure que les dégagements sont maintenus. (Fig. 1)
• Assurez-vous que le support choisi supportera le poids de l'unité.
• L'emplacement doit être facilement accessible pour le nettoyage ou le
remplacement du filtre à air, la maintenance et l'entretien.
•
L'unité intérieure doit être fixée en hauteur sur le mur en direction du plafond, en
laissant un minimum de 150 mm (6 po) d'espace entre le plafond et la partie
supérieure de l'unité intérieure. (Fig. 1)
•
En raison de la possibilité d'interférences électroniques avec d'autres appareils,
il est recommandé de prévoir un dégagement d'au moins 1 mètre (3 pieds)
entre l'unité et les autres dispositifs électriques/appareils comme les
téléviseurs
ou les postes de radio.
• L'unité doit être installée loin de sources éventuelles de feu, de fumée ou de
gaz inflammables et être protégée des rayons du soleil (la lumière solaire
peut interférer avec le signal entre l'appareil et la télécommande.
Unité extérieure
• Si l'emplacement où sera installée l'unité est exposé à des vents forts (par
exemple en bord de mer), assurez-
vous que l'unité soit protégé e du vent. C ela
contribuera au bon fonctionnement du ventilateur en empêchant les fortes
rafales de vent d'entrer dans le boîtier de l'unité. (Fig. 3 et Fig. 4)
Au moins 4 po (10 cm)
Recommandé 12 po. (30cm)
!
Le spectacle de dégagement minimum
entraînera e󰀩cacité mineure et perte
de capacité - généralement de 5 à 7 %.
Installation and Operation Manual - VMH 09/12/18/24 SU Series
4
4
Heat Controller
Selecting installation place
Choose a location that places the outdoor unit as close to the indoor unit as
possible.
The maximum unit separation and vertical lift (compressor above
the
evaporator) must be taken into account. Do not exceed allowable
refrigerant
line lengths.
Indoor unit
• Unit must be installed in a location that does not obstruct the ow of air
and ensures clearances are maintained. (Fig. 1)
• The site must support the weight of the unit.
• The site must be easily accessible for cleaning or replacement of the air
filter, maintenance and service.
• The indoor unit should be mounted high up on the wall toward the
ceiling, leaving a minimum of 6” (150mm) of space between the ceiling
and the top of the indoor unit. (Fig. 1)
•
•
Due to the possibility of electronic interference with other devices, it is
recommended that there should be at least 3 ft (1 meter) between the unit
and other devices/appliances such as televisions or radios.
The unit should be installed away from possible exposure to fire, smoke,
or flammable gases and be protected from direct sunlight (sunlight can
interfere with the signal between the unit and the remote controller.
Outdoor unit
• If installation location allows the unit to be exposed to strong winds (such
as coastal applications), ensure that the unit has a wind barrier. This will
assist with preventing strong gusts of wind from entering the unit’s cabinet
and interfering with the fan operation. (Fig. 3 and Fig. 4)
At least
30in.(70cm)
Fig. 1
Fig. 2
Fig. 3 Fig. 4
Correct
Incorrect
wind gusts
Incorrect
Strong
wind
Strong
wind
Barrier
Correct
At least
12in.(30cm)
At least 24in.(60cm)
At least 4in.(10cm)
Recommended 12in. (30cm)
Minimum clearance - 3"
Recomended clearance - 6"
At least 64" (162cm)
At least 6in.(15cm) At least 6in.(15cm)
VMH 09/12/18/24 SU/30 SD Inverter Mini-Split
(A)
(B)
(E)
(D)
(C)
A
B12” on right
C79” in front
D12” on left
E24” above
4” Clearance (Min. allowed) 1%-2% efficiency and capacity Loss
5” Clearance with no efficiency or capacity loss
Installation and Operation Manual - VMH 09/12/18/24 SU Series
4
4
Heat Controller
Selecting installation place
Choose a location that places the outdoor unit as close to the indoor unit as
possible.
The maximum unit separation and vertical lift (compressor above
the
evaporator) must be taken into account. Do not exceed allowable
refrigerant
line lengths.
Indoor unit
• Unit must be installed in a location that does not obstruct the ow of air
and ensures clearances are maintained. (Fig. 1)
• The site must support the weight of the unit.
• The site must be easily accessible for cleaning or replacement of the air
filter, maintenance and service.
• The indoor unit should be mounted high up on the wall toward the
ceiling, leaving a minimum of 6” (150mm) of space between the ceiling
and the top of the indoor unit. (Fig. 1)
•
•
Due to the possibility of electronic interference with other devices, it is
recommended that there should be at least 3 ft (1 meter) between the unit
and other devices/appliances such as televisions or radios.
The unit should be installed away from possible exposure to fire, smoke,
or flammable gases and be protected from direct sunlight (sunlight can
interfere with the signal between the unit and the remote controller.
Outdoor unit
• If installation location allows the unit to be exposed to strong winds (such
as coastal applications), ensure that the unit has a wind barrier. This will
assist with preventing strong gusts of wind from entering the unit’s cabinet
and interfering with the fan operation. (Fig. 3 and Fig. 4)
At least
30in.(70cm)
Fig. 1
Fig. 2
Fig. 3 Fig. 4
Correct
Incorrect
wind gusts
Incorrect
Strong
wind
Strong
wind
Barrier
Correct
At least
12in.(30cm)
At least 24in.(60cm)
At least 4in.(10cm)
Recommended 12in. (30cm)
Minimum clearance - 3"
Recomended clearance - 6"
At least 64" (162cm)
At least 6in.(15cm) At least 6in.(15cm)
VMH 09/12/18/24 SU/30 SD Inverter Mini-Split