MRCOOL CASSETTE24HP230 Installation Manual
Please read this manual carefully before installation and keep it for future reference.
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Installation Manual
Olympus Series
Cassette Air Handlers
Please keep this manual where the operator can easily find it.
Inside you will find helpful hints on how to use and maintain your
unit properly.
If used as MULTI unit, please refer to the Installation & operation manuals packed with outdoor unit.
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CONTENTS Page
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PRECAUTIONS
INSTALLATION INFORMATION
ACCESSORIES
INDOOR UNIT INSTALLATION
OUTDOOR UNIT INSTALLATION
INSTALL THE REFRIGERANT PIPE
CONNECT THE DRAIN PIPE
ELECTRIC WIRING WORK
INSTALLATION OF THE DECORATION PANEL
TEST OPERATION
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PRECAUTIONS
Install according to this installation instructions strictly.
If installation is defective, it will cause water leakage, electrical
shock and fire.
When installing the unit in a small room, take measures
against to keep refrigerant concentration from exceeding
allowable safety limits in the event of refrigerant leakage.
Contact the place of purchase for more information. Excessive
refrigerant in a closed ambient can lead to oxygen deficiency.
Use the attached accessories parts and specified parts for
installation.
otherwise, it will cause the set to fall, water leakage, electrical
shock and fire.
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 to cause injury.
The appliance must be installed 8.2ft / 2.5m above floor.
Keep this manual where the operator can easily find them.
Read this manual attentively before starting up the units.
For safety reason the operator must read the following
cautions carefully.
Installation must be performed in accordance with the
requirement of NEC and CEC by authorized personnel only.
The safty precautions listed here are divided into two categories.
WARNING
If you do not follow these instrutions exactly, the unit may
cause property damage, personal injury or loss of life.
CAUTION
If you do not follow these instrutions exactly, the unit may
cause minor or moderate property damage, personal injury.
After completing the installation, make sure that the unit operates
properly during the start-up operation. Please instruct the customer on
how to operate the unit and keep it maintained.
that they should store this installation manual along with the owner's
manual for future reference.
Also, inform customers
The appliance shall not be installed in the laundry.
Before obtaining access to terminals, all supply circuits must
be disconnected.
The appliance must be positioned so that the plug is accessible.
The enclosure of the appliance shall be marked by word, or by
symbols, with the direction of the fluid flow.
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 in electrical
work, it will cause electrical shock or fire.
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.
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.
If the supply cord is damaged, it must be replaced by the
manufacture or its service agent or a similarly qualified person
in order to avoid a hazard.
An all-pole disconnection switch having a contact separation
of at least
0.12in in all poles should be connected in fixed wiring.
WARNING
Be sure only trained and qualified service personnel install,
repair or service the equipment.
Improper installation, repair, and maintenance may result in
electric shocks, short-circuit, leaks, fire or other damage to the
equipment.
When carrying out piping connection, take care not to let air
substances 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 of
extension cord, and do not share the single outlet with other
electrical appliances.
Otherwise, it will cause fire or electrical shock.
1
If the refrigerant leaks during installation, ventilate the area
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immediately.
Toxic gas may be produced if the refrigerant comes into the
place contacting with fire.
The temperature of refrigerant circuit will be high, please keep
the interconnection cable away from the copper tube.
After completing the installation work, check that the refrigerant
does not leak.
Toxic gas may be produced if the refrigerant leaks into the
room and comes into contact with a source of fire, such as a
fan heater, stove or cooker.
CAUTION
Ground the air conditioner.
Do not connect the ground wire to gas or water pipes, lightning
rod or a telephone ground wire. Inappropriate grounding may
result in electric shocks.
Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in electric
shocks.
Connect the outdoor unit wires, then connect the indoor unit
wires.
You are not allowed to connect the air conditioner with the
power supply until the wiring and piping is done.
While following the instructions in this installation manual, install
drain piping in order to ensure proper drainage and insulate
piping in order to prevent condensation.
Improper drain piping may result in water leakage and property
damage.
There are inflammable
There is acid
Other special conditions.
The appliance shall be installed in accordance with national
wiring regulations.
Do not operate your air conditioner in a wet room such as a
bathroom or laundry room.
An all-pole disconnection device which has at least 0.1in / 3mm
clearances in all poles, and have a leakage current that may
exceed 10mA, the residual current device (RCD) having a rated
residual operating current not exceeding 30mA, and
disconnection must be incorporated in the fixed wiring in
accordance with the wiring rules.
or alkaline liquid
materials or gas.
evaporating.
INSTALLATION INFORMATION
To install properly, please read this "installation manual" at
first.
The air conditioner must be installed by qualified persons.
When installing the indoor unit or its tubing, please follow
this manual as strictly as possible.
If the air conditioner is installed on a metal part of the
building, it must be electrically insulated according to the
relevant standards to electrical appliances.
Install the indoor and outdoor units, power supply wiring and
connecting wires should be at least 3.3ft
televisions or radios in order to prevent image interference or
noise.
Depending on the radio waves, a distance of 3.3ft
be sufficient enough to eliminate the noise.
The appliance is not intended for use by young children or
infirm persons without supervision.
Don't install the air conditioner in the following circumstance:
There is petrolatum existing.
There is salty
There is caustic
in the air
The Volt
In buses or
In kitchen where
There is strong
air surrounding (near the coast).
gas (the sulfide,
(near a hot
vibrates violently (in
cabinets.
spring).
of oil gas.
it is full
electromagnetic wave existing.
away from
may not
for example) existing
the factories).
When all the installation work is finished, please turn on
the power only after a thorough check.
Regret for no further announcement if there is any change
of this manual caused by product improvement.
INSTALLATION ORDER
Indoor unit installation;
Outdoor unit installation;
Install the refrigerant pipe;
Connect the drain pipe;
Electric wiring work;
Installation of the decoration panel;
Test operation.
2
ACCESSORIES
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Check if the following accessories are included with your unit.
1
5
1X+1X
1X
2
2X
6
3
1X
7
1X1X
4
2X
8
1X
For the following items, take special care during
construction and check after installation is finished
Tick
when
checked
Is the indoor unit fixed firmly?
The unit may drop, vibrate or make noise.
Is the gas leak test finished?
It may result in insufficient cooling or heating.
Is the unit fully insulated?
Condensate water may drip.
Does drainage flow smoothly?
Condensate water may drip.
Does the power supply voltage correspond to that
shown on the name plate?
The unit may malfunction or components may burn out.
9 10
4X
11 12
1 Remote control
2 Batteries
3 Remote control holder (on some models)
4 Tapping screws (M3 10mm) (on some models)
5 Installation and owner's manual
6 Paper pattern for installation (on some models)
7 Metal champ (on some models)
8 Drain hose (on some models)
4X
11
1X 1X
12
Are wiring and piping correct?
The unit may malfunction or components may burn out.
Is the unit safely grounded?
Dangerous at electric leakage.
Is the wiring size according to specifications?
The unit may malfunction or components may burn out.
Is nothing blocking the air outlet or inlet of either the
indoor or outdoor units?
It may result in insufficient cooling or heating.
Are refrigerant piping length and additional refrigerant
charge noted down?
The refrigerant charge in the system might not be clear.
NOTE
All the pictures in this manual are for explanation purpose only.
There may be slightly different from the air conditioner you
purchased ( depend on model ). The actual shape may vary.
9 Expansible hooks (on some models)
10 Installation hooks (on some models)
11 Throttle (on some models)
12 Anti-shock rubber (on some models)
13 Drain plug (only heat pump models) (with the outdoor unit)
14 Seal ring (only heat pump models) (with the outdoor unit)
Optional accessories
This indoor unit requires installation of an optional decoration
panel.
3
1. INDOOR UNIT INSTALLATION
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1.1 Selecting installation site
When the conditions in the ceiling are exceeding 30C / 86 F and a
relative humidity of 80%, or when fresh air is inducted into the ceiling,
an additional insulation is required (minimum 0.4in / 10mm thickness,
polyethylene foam).
Select an installation site where the following conditions are
1)
fulfilled and that meets your customer's approval.
- Where optimum air distribution can be ensured.
- Where nothing blocks air passage.
- Where condensate water can be properly drained.
- Where the false ceiling is not noticeably on an incline.
- Where sufficient clearance for maintenance and service can be
ensured.
- Where there is no risk of flammable gas leaking.
- The equipment is not intended for use in a potentially explosive
atmosphere.
- Where piping between indoor and outdoor units is possible
within the allowable limit.(Refer to the installation manual of the
outdoor unit.)
- Keep indoor unit, outdoor unit, inter unit wiring and remote
control wiring at least 3.3 feet away from televisions and
radios.This is to prevent image interference and noise in those
electrical appliances.(Noise may be generated depending on
the conditions under which the electric wave is generated,even
if 3.3ft is kept.)
- When installing the wireless remote control kit, the distance
between wireless remote control and indoor unit might be
shorter if there are fluorescent lights who are electrically started
in the room.The indoor unit must be installed as far as possible
away from fluorescent lights.
2)
Ceiling height
Install this unit where the height of bottom panel is more than
8.2ft / 2.5m so that the user cannot easily touch.
00
1000/39.4in
1000/39.4in
1000/39.4in
1 Air inlet
260/10.2in
2
2500/98.4in
1
2
290/11.4in
1000/39.4in
1000/39.4in
1000/39.4in
Unit: mm
2 Air outlet
DANGER
Do not install the unit in an area where flammable materials
are present due to risk of explosion resulting in serious
injury or death.
3)
Use installation hooks for installation. Check whether the
ceiling is strong enough to support the weight of the indoor
unit. If there is a risk, reinforce the ceiling before installing
the unit.
Space required for installation see the figure below ( :air flow
direction)
WARNING
If the basis underneath the unit is not strong enough to
support the weight of the unit, the unit could be fall out of
place and cause serious injury.
4
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