Installation Manual
INSTALLATION
INSTUCTIONS
INSTALLATION
INSTUCTIONS
P14 OF 36P13 OF 36
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
INSTALLATION POSITIONS FOR OUTDOOR UNIT
* To be installed at the position where the air delivered from the unit can reach every comer of the room.
* To avoid being affected by the outdoor air.
* To avoid blockage to the air inlet or outlet of the unit.
* To avoid excessive oil smoke or steam.
* To avoid possible generation, inflow, lingering or leakage of flammable gases.
* To avoid high-frequency facilities (such as high frequency arc welders, etc.).
* To avoid the places where acid solutions are frequently used.
* To avoid the places where some special sprayers (sulfides) are frequently used.
* Not to install on top of the musical instruments, TV, computer etc. valuable appliance.
* Not to install a fire alarming device near the air outlet of the unit (during operation, the fire alarm device might
be erroneously triggered by the warm air from the unit).
The installation must be done by trained and
qualified service personnel with reliability
according to this manual.
Contact service center if you have any
questions, before, during, or after installation,
in order to prevent any unit malfunctions or
failures, due to an unprofessional installation.
If Picking up and moving the units, you must
hire a trained and qualified contractor/
technician with the proper tools.
Ensure that the recommended clearance is left
around the unit, for proper installation,
operation and service in the future..
WMMS-42CH-V2B(59)(2) (1 to 4)
WMMS-21CH-V2B(59)(2) (1 to 2)
WMMS-30CH-V2B(59)(2) (1 to 2)
WMMS-48CH-V2B(59)(2) (1 to 4)
WMMS-24CH-V2B(59)(2) (1 to 3)
WMMS-36CH-V2B(59)(2) (1 to 3)
Inch
Model
B
E
Inch
13.5
21.7
13.5
22.75
13.5
22.75
13.5
22.5
INSTALLATION CLEARANCE
WMMS-60CH-V2B(59)(2) (1 to 5)
16.9
24.75
>18"
>18"
Other Brackets
Heavy-Duty PVC Riser
for Ground Mounting
Coated Brackets
W A ccessories
Bracket Accessories
INSTALLATION-OUTDOOR UNIT
INSTALL OUTDOOR UNIT
Strongly suggest to install the outdoor unit above the ground either on platform or brackets as shown below.
Heat pump unit must be lifted up from ground level, since condensate must be drained out of the drain pan of the
condensing unit; othewise, condensate may accumulate and ice up causing damage to the condensing unit.
Suggest to use YMGI-provided brackets and condensate drainage fitting accessories.
(Actual unit/parts or installation may look differently from the illustrated)
INSTALLING OUTDOOR UNIT
LOCATION
Use bolts to secure the unit to a flat, solid floor.
When mounting the unit on a wall or the roof,
make sure the support is firmly secured so that
it cannot move in the event of intense
vibrations or a strong wind.
* Do not install the outdoor unit in pits or air vents.
* Do not install the outdoor unit where it is exposed
to direct sunlight.
INSTALLING THE PIPES
Use suitable connecting pipes and equipment
for the refrigerant R410A.
The refrigerant pipes must not exceed the maximum
lengths given in the technical data table.
Lag all the refrigerant pipes and joints.
Tighten the connections using two wrenches working in opposite directions.
Install the drain fitting and the drain hose (for model with heat pump only)
Condensation is produced and flows from the outdoor unit when the appliance is operating in the heating mode.
In order not to disturb neighbors and to respect the environment, install a drain fitting and a drain hose to
channel the condensate water. Install the drain fitting and rubber washer on the outdoor unit chassis and connect
a drain hose to it as shown in the figure.
After having removed the packaging, check
that the contents are intact and complete.
Handling must be done by suitably equipped
qualified technical personnel using equipment
that is suitable for the weight of the appliance.
The outdoor unit must always be kept upright.
HANDLING
INSTALLATION CLEARANCE
8" or above
Space to the cover
78" or above
(Air outlet side)
10" or above
Space to the wall
20" or above
Space to the wall
6" or above
(Air inlet side)
B
E










