Hitachi RPI-30MH1 Installation Manual

FOR SERVICE PERSONNEL ONLY
SYSTEM SINGLE DUCTING
UNIT AIR CONDITIONER
INSTALLATION MANUAL
Outdoor Unit
Indoor Unit
RAC-30MH1
RPI-30MH1

SAFETY PRECAUTION

O Read the safety precautions carefully before operating the unit.
O The contents of this section are vital to ensure safety. Please pay special attention to the following sign.
!
WARNING ........ Incorrect methods of installation may cause death or serious injury.
!
CAUTION ......... Improper installation may result in serious consequence.
Be sure that the unit operates in proper condition after installation. Explain to customer the proper way of
operating the unit as described in the user's guide.
!
O Please request your sales agent or qualiÀ ed technician to install your unit. Water leakage, short circuit or À re may occur if
you do the installation work yourself.
O Please observe the instructions stated in the installation manual during the process of installation. Improper installation may
cause water leakage, electric shock and À re.
O Make sure that the units are mounted at locations which are able to provide full support to the weight of the units. If not,
the units may collapse and impose danger.
O Observe the rules and regulations of the electrical installation and the methods described in the installation manual when
dealing with the electrical work. Use power cables approved by the authorities of your country.
O Be sure to use the speciÀ ed wire for connecting the indoor and outdoor units. Please ensure that the connections are tight
after the conductors of the wire are inserted into the terminals. Improper insertion and loose contact may cause over-heating
and À re.
O Please use the speciÀ ed components for installation work. Otherwise, the units may collapse or water leakage, electric shock
and À re may occur.
O
Be sure to use the speciÀ ed piping set for R22. Otherwise, this may result in broken copper pipes or faults.
O
When installing or removing an air conditioner, do not allow air or moisture to remain in the refrigeration cycle. Otherwise,
pressure in the refrigeration cycle may become abnormally high so that a rupture may be caused.
O
Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into contact with À re, a poisonous
gas may occur.
O
After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas
leaks into the room, coming into contact with À re in the fan-driven heater, space heater, etc., a poisonous gas may occur.
O
Unauthorized modiÀ cations to the air conditioner may be dangerous. If a breakdown occurs please call a qualiÀ ed air
conditioner technician or electrician. Improper repairs may result in water leakage, electric shock and À re, etc.
O A circuit breaker or fuse (20A time delay) must be installed. Without a circuit breaker or fuse the danger of electric shock
exists.
A main switch with a contact gap of more than 3mm has to be installed in the power supply line to the outdoor unit.
O Do not install the unit near a location where there is Á ammable gas. The outdoor unit may
catch À re if Á ammable gas leaks around it.
O Please ensure smooth Á ow of water when installing the drain hose.
O Piping shall be suitable supported with a maximum spacing of 1m between the supports.
1 Opening on ceiling & suspension bolt
980 (for Suspension Bolt)
(for Suspension Bolt)
O Need a connecting work for refrigerant pipe, drain pipe and F cable in the ceilling after suspending the indoor unit. Arrange
drain pipe, refrigerant pipe and F cable in their installation position.
O For À nishing of opening on ceiling, arrange with builder in detail.
O If ceilling is already completed, connecting cables between indoor and outdoor, piping and drain piping must be done before
À tting indoor unit.
2 Preparation for installing indoor unit
Installation of suspension bolts
O Be sure to reinforce furring of ceiling (frame : ceiling joints and supporter) to maintain level of ceiling and prevent vibration
of ceiling plate.
O Suspension bolts should be purchased in the À eld.
O Refer to diagrams shown below for length of suspension bolts.
O In case of wooden frame O In case of steel frame
60 ~ 90mm square piece of lumber
150 ~ 160mm
Reinforcing
bar
Nut Angle
Nut
Angle
Suspension
bolt (M10)
Ceiling
< >
IA657: A
Carefully read through the procedures of proper
O
installation before starting installation work.
O The sales agent should inform customers regarding
the correct operation of installation.
Tools Needed For Installation Work
+ – Screwdriver Measuring Tape
O O
O Saw O ø 65mm Power Drill O Allen Key (
O Wrench (14, 17, 19, 22, 24, 27mm)
O Gas Leakage Detector O Pipe Cutter
Plastic Tape Pliers Flare Tool
O O O
WARNING
CAUTION
!
Unit : mm
Wired remote controller
Refrigerant Gas Pipe Connection
Refrigerant Liquid Pipe Connection
(Gas pipe)
(Drain pipe)
(Liquid pipe)
(Unit : mm)
Insert 980 ~ 1470N
(100 ~ 150kgf)
C type
metal
Concrete
Suspension bolt (M10)
Hanger bolt
Angle
H beam
Suspension
bolt (M10)
Ceiling
THE CHOICE OF MOUNTING SITE (Please note the following matters and obtain permission from customer before installation).
WARNING
!
O
The unit should be mounted at stable, non-vibratory location
which can provide full support to the unit.
CAUTION
!
O
No nearby heat source and no obstruction near the air outlet is
allowed.
O
The clearance distances from top, right and left are speciÀ ed in
À gure below.
O
The location must be convenient for water drainage and pipe
Knife
O
connection with the Outdoor unit.
4mm)
O To avoid interference from noise please place the unit and its
remote controller at least 1m from the radio, television and inverter
type Á uorescent lamp.
O To avoid any error in signal transmission from the remote controller,
please put the controller far away from high-frequency machines
and high-power wireless systems.
O The installation height of indoor unit must be 2.3m or more in a
non public area.
Accessories to indoor Unit:
No. Component's Name Qty
Washer(M10)
Screw (4mm)
Hose Clamp
Insulation (22IDx130)
Insulation (43IDx130)
Binder
Remote Controller
Screw for holder of
Remote Controller
Filter Holder
Screw for Filter Holder
Other optional parts for display
panel & wireless remote control
SPX-RCK4
No. Item
Display panel
1
Panel installation plate
2
Panel cover
3
Remote controller (wireless)
4
Holder for remote control
5
6 3.1 x 16 screw
Wall Penetration and Installation of Protection Pipe
O Drill a ø 65mm hole on wall which is slightly tilted towards the outdoor side. Drill the wall at a small angle.
O Cut the protection pipe according to the wall thickness.
O Empty gap in the sleeve of protection pipe should be completely sealed with putty to avoid dripping of rain water into the room.
Indoor
Seal with putty
Protection pipe
Drain pipe installation
O Prepare polyvinyl chloride pipe with a 32mm outer diameter.
Be sure to roll an insulation (thickness 10mm or more) for the drain pipe at indoor side.
O
O Always draw the drain pipe downward so that water Á ows smoothly. Fix it (ex. by hanger) to prevent a peak and trap.
Drain Pipe Connection
Downward 1/25 ~ 1/100
Insulation (Thickness
10mm or more)
O In case drain piping cannot be done smoothly due to obstacles, it can also be arranged outside of the main unit as shown in the
drawing below.
O Maximum drain-up length shall not more than 500mm height.
Installation of Drain Pump (Optional)
Bend slip-
preventive metal
Long nut
Suspension
bolt (M10)
O When the relative humidity of inlet or ambient air exceeds 80%, apply an (À eld-supplied) auxiliary drain pan beneath the indoor unit
as shown below
Suspension
bolt (M10)
O
The outdoor unit must be mounted at a location which can support heavy
weight. Otherwise, noise and vibration will increase.
O
Do not expose the unit under direct sunshine or rain. Besides, ventilation
must be good and clear of obstruction.
O
The air blown out of the unit should not point directly to animals or plants.
O The clearances of the unit from top, left, right and front are speciÀ ed in À gure
below. At least three of the above sides must be open air.
O
Be sure that the hot air blown out of the unit and noise do not disturb the
neighbourhood.
O
Do not install at a location where there is Á ammable gas, steam, oil and
smoke.
O
The location must be convenient for water drainage.
O
Place the outdoor unit and its connection wire at least 1m away from the
antenna or signal line of television, radio or telephone. This is to avoid noise
interference.
Names of Outdoor Components
Dimension of Mounting Stand
of the outdoor unit
No. Item Qty
(unit : mm)
Bush
mounting stand
11 1
Bush
12 3
Drain Pipe
13 1
Service Access
Electrical Box
Door (Min. 450)
Be sure to
completely
Rear Side
s e a l a n y
g a p w i t h
putty.
Front Side
Min. 600
Min.
600
View from Top
! CAUTION
O Install the indoor unit with a proper
clearance around it for operation and
maintenance working space.
O In case that the ceiling board can not
be detected for servicing, prepare a
service access door below the indoor
unit for removing the indoor unit.
Above 200mm
Quantity Above 50mm when
installed on the
ceiling of balcony
1
1
1
Above 100mm
1
1
Above 500mm
2
Outdoor
Seal with putty
Be sure to use protection pipe (commercial
product).
If connecting cables are touching metal lath inside
the wall or inside the wall is hollow where mouse can
bite cables, it can cause electrical shock or À re.
Sleeve of If sealing is not complete, high humidity air from
WALL
protection pipe
inside the wall or outside of the room can come in
and cause water dripping.
Seal
Trap
No insulation
Drain Piping (PVC TUbe, VP25)
Suspension Bracket
(Field-Supplied)
(Field-Supplied)
90° Elbow Pipe (VP25)
1/25 to 1/100 Down-Slope
(Field-Supplied)
Lift Piping For Drain-Up
(PVC Tube, VP25)
(Field-Supplied)
90° Elbow Pipe (VP25)
(Field-Supplied)
Indoor Unit
Drain Pan
Drain Pump
Hose Clamp
(Optional)
Auxiliary Drain Pan
(Field-Supplied)
To the Atmosphere
WARNING
!
CAUTION
!
Figure showing the Installation
of Indoor and Outdoor Unit.
CAUTION
!
In case the pipe length is more than 5m,
add refrigerant R22 at 35 gram per every
meter exceeds. However, pipe length shall
not exceed 50m.
The indoor piping should be insulated
with the enclosed insulation pipe. (If
the insulator is insufÀ cient, please
use commercial producrts.)
Drain pipe
Must be installed separately.
Insulate indoor part of pipe to
prevent condensation.
O
The difference in height
between the indoor and
outdoor unit should be
kept below 30m.
O The connecting pipe,
no matter big or small,
should all be insulated
Above 100mm
with insulation pipe and
then wrapped with vinyl
give clearance
tape. (The insulator will
as wide as
possible
deteriorate if it is not
wrapped with tape).
! CAUTION
Always install the indoor unit
level. Units not installed level
may leak.
CAUTION
Above 200mm !
O Discharge grille and suction grille
shall be covered by insulation
material to prevent water drop.
! CAUTION
Be sure that the wire is not in contact
with any metal in the wall. Please use
the protection pipe as wire passing
through the hollow part of the wall so
as to prevent the possibility of damaged
by mouse.
! WARNING
Stagnant water