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Hitachi RPFC-3.0UFE1NH, Installation & Maintenance Manual, Page: 20 / 28

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Hitachi RPFC-3.0UFE1NH Installation & Maintenance Manual Download Page 20

3.2 

Installation location

• 

Select the suitable areas to install the unit with approval of 
the user.

• 

Ensure that the air path is not blocked.

• 

Ensure that condensate can drain properly.

• 

Ensure that the ceiling is strong enough to bear the weight of 
the indoor unit.

•  Ensure the sufficient clearance for maintenance and service. 

(See Fig.3.2.1).

• 

Piping between the indoor and outdoor units should be 
within the allowable limits. (Refer to the installation manual 
of the outdoor unit.)

• 

The indoor unit, outdoor unit, power supply wiring and 
transmission wiring should be at least 1 meter away from 
televisions and radio, to prevent interference and noise 
in those electrical appliances. (Noise may be generated 
depending on the conditions under which the electric wave is 
generated, even if one-meter.)

• 

Use suspension bolts to install the unit, check whether the 
ceiling is strong enough to support the weight of the unit. If 
there is a risk that the ceiling is not strong enough, reinforce 
the ceiling before installing the unit.

• 

If there are 2 units of wireless type, keep them at least 6m 
away to avoid malfunction due to cross communication.

• 

When plural indoor units are installed nearby, keep them 
away for more than 4-5m.

Space for installation and service

4000~5000mm or more

100mm or more

300mm  or more

150mm or more

5mm or more

Obstacle

Ceiling installation

4000~5000mm

100mm or more

150mm or more

150mm or more

Floor

150mm or more

Wall

Wall

Floor

Floor standing installation

Fig. 3.2.1 

3.3 

Installation

According to the actual installation space, installation can be 

done in the ceiling or on the floor.

3.3.1  Suspension bolts

1 

Consider the pipe direction, wiring and maintenance access 
carefully, and choose the proper direction and location for 
installation.

2 

Install the suspension bolts as shown in Fig. 3.3.1. below.

g

g

g

For concrete

For steel beam

For wooden beam

(W3/8 or M10)

Suspension 

bolts

Concrete

150 to 160mm

Screw in 

(100 to 150kg)

Steel 

bar

Wood rib 

(60mm to 90mm)

Wooden beam

“

I

” shaped steel 

beam

Suspension bolts 

(W3/8 or M10)

Nut

Round washer

Nut

Suspension bolts

Square washer

Fig. 3.3.1 Fixing the suspension bolts

3.3.2   Position of the suspension bolts and 

pipes

1 

Mark the positions of suspension bolts, refrigerant pipes and 
drain pipes.

2 

The dimensions are shown below.

17

0

68

0

39

39

A
B

25

0

(Unit: mm)

Blowout opening

Capacity

a

b

3.0HP

990

912

3.5/4.0HP

1285

1207

5.0/6.0/6.5HP

1580

1502

Fig. 3.3.2 Suspension bolts

INSTALLATION AND MAINTENANCE

HO2019291HA

14

Summary of Contents for RPFC-3.0UFE1NH

Page 1: ...HO2019291HA INDOOR UNITS RPFC 3 0UFE1NH RPFC 3 5UFE1NH RPFC 4 0UFE1NH RPFC 5 0UFE1NH RPFC 6 0UFE1NH RPFC 6 5UFE1NH FLOOR CEILING CONVERTIBLE UNIT LARGE SINGLE SPLIT FIXED SPEED SERIES ...

Page 2: ......

Page 3: ...fety Notice 11 2 Tools and Instruments for Installation 12 3 Installation of the Indoor Unit 12 3 1 Before Installation 12 3 2 Installation location 14 3 3 Installation 14 4 Refrigerant Pipe 17 4 1 Pipe material 17 4 2 Piping connection 17 5 Drain piping 18 6 Electrical Wiring 19 7 Attaching the air return grille 19 8 Electrical installation 20 9 Test Run 20 ...

Page 4: ...department to avoid danger The place where this product is installed must have the reliable electrical grounding facilities and protections Please do not connect the grounding of this product to various kinds of air feeding ducts drain piping lightning protection facilities as well as other piping lines to avoid electric shock and damage caused by other factors Wiring must be done by a qualified e...

Page 5: ...o the electrical supply and interconnection of separate components and the wiring diagram with a clear indication of the connections and wiring to external control devices and supply cord are detailed below Power connection and interconnection between outdoor unit and indoor unit should be conducted with the power cord of the H07RN F type or the electrically equivalent type The size of the power c...

Page 6: ......

Page 7: ...ckage protection should be constructed so that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations 6 Information on servicing 6 1 Checking the area Prior to beginning work on systems containing flammable refrigerants safety checks are n...

Page 8: ...sition where they are unlikely to be exposed to any substance which may corrode refrigerant containing components unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded 6 9 Checking electrical devices Repair and maintenance to electrical components shall include initial safety checks and component insp...

Page 9: ...rated to the refrigerant employed and the appropriate percentage of gas 25 maximum is confirmed Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe work If a leak is suspected all naked flames shall be removed extinguished If a leakage of refrigera...

Page 10: ...frigerant can be removed from various parts of the system f Make sure that cylinder is situated on the scales before recovery takes place g Start the recovery machine and operate in accordance with manufacturer s instructions h Do not overfill cylinders No more than 80 volume liquid charge i Do not exceed the maximum working pressure of the cylinder even temporarily j When the cylinders have been ...

Page 11: ...recommended by the manufacturer The appliance shall be stored in a room without continuously operating ignition sources for example open flames an operating gas appliance or an operating electric heater Do not pierce or burn Be aware that refrigerants may not contain an odour To keep ventilation openings clear of obstruction The appliance shall be stored in a well ventilated area where the room si...

Page 12: ...n external ignition source there is a risk of fire CAUTION This symbol shows that the operation manual should be read carefully CAUTION This symbol shows that a service personnel should handle this equipment with reference to the installation manual CAUTION This symbol shows that information is available such as the operating manual or installation manual SAFETY PRECAUTIONS HO2019291HA 6 ...

Page 13: ...e started or stopped when the switch is pressed The unit will be operated in forced cooling mode if the switch is pressed continuously for more than 5s when the unit is off Run indicator Red It lights on in operation It lights off in SLEEP mode Defrost indicator Green It lights on during the defrosting It lights off when the defrosting is finished Infrared receiver Receives signals from the remote...

Page 14: ...an be used Operation instructions will be further specified in remote controller s manual separately Please read it carefully before using this appliance and keep it for future reference Wired controller Remote controller 1 HCWA21NEWH HCRA31NEWH NOTE The figures are based on the external views of the standard model Consequently the shape may differ for the air conditioner model you have selected C...

Page 15: ... exchanger affecting heating performance When this happens the defrosting system of the air conditioner will operate At the same time the fan in the indoor unit stops or runs at a very low speed in some cases to prevent cold draft After defrosting is over the heating operation and fan speed resume Blowing out the residual heating air When air conditioner is stopped during normal operation the fan ...

Page 16: ...igerant flow may be heard 5 Filter removing and installing CAUTION Turn off the main power switch before taking the filter out Operations should be performed by professional staff or under the supervision and guidance of professionals Removing filter from air return grille Take out the air filter according the following steps Step1 Slide the air return grille holding knobs 4 places then remove the...

Page 17: ...refrigerant circuit free from substances such as air other than the specified refrigerant Any presence of air or other foreign substance in the refrigerant circuit may cause an abnormal pressure rise or rupture resulting in injury If any refrigerant leakage occurs during the installation work ventilate the room After all installations are complete make sure that there is no refrigerant leakage The...

Page 18: ...installation do not damage the insulation material on the surface of the indoor unit 3 1 Before Installation When moving the unit during or after unpacking make sure to lift it by holding its lifting lugs Do not exert any pressure on other parts especially the refrigerant piping drain piping and flange parts Wear protective gears when installing the unit Install correctly according to the installa...

Page 19: ...lamp 10 For pipe cover fixing Drain hose 1 For drain pipe connection Hose clamp 2 For joint socket connection Heavy insulation 2 For drain hose cover Joint socket 1 For drain hose connection Jump ring 1 For drain hose connection Plastic sheath 1 For drain hose and piping connection Accessories can be found inside the unit Air return grille INSTALLATION AND MAINTENANCE HO2019291HA 13 EN ...

Page 20: ...lural indoor units are installed nearby keep them away for more than 4 5m Space for installation and service 4000 5000mm or more 100mm or more 300mm or more 150mm or more 5mm or more Obstacle Ceiling installation 4000 5000mm 100mm or more 150mm or more 150mm or more Floor 150mm or more Wall Wall Floor Floor standing installation Fig 3 2 1 3 3 Installation According to the actual installation space...

Page 21: ...in outlet rear right Unit mm Fig 3 3 3 3 3 3 Installation unit preparation 1 Remove the air return grille Slide stoppers 4 places from the catches then remove the screws Screw 4 Screw 4 6 Fig 3 3 4 2 Remove the side panel Remove the screw and detach the side panel by sliding it towards the direction indicated by the arrow mark Side panel screw 1 each on the left and right M4 Side panel Fig 3 3 5 3...

Page 22: ...ding type installation 1 Select the suspension bolt locations and the pipe hole location i Use enclosed paper pattern as a reference and drill the holes for the suspension bolts and pipe NOTE Decide the locations based on the direct measurements ii After the locations are properly placed the paper pattern can be removed 2 Install the suspension bolts in place Pattern board Wall Floor Fig 3 3 10 3 ...

Page 23: ... 0 6 5HP 19 05 9 52 25 OD Fig 4 2 Pipe diameter The pipe can be connected from three different directions rear right top If the pipe is routed from the back side remove the brackets for easier piping work After piping reinstall the removed bracket Fig 4 3 If the pipe is routed from the back side cut the removed top cover and install on the rear panel instead of rear cover 2 As shown in Fig 4 4 scr...

Page 24: ...n from causing water leakage Drain pipes passing indoors Drain sockets Referring the figure below insulate the drain socket and drain hose using the large sealing pad provided as an accessory Sealing material Drain hose Sealing material CAUTION Drain piping connections Do not connect the drain directly to sewage pipes with smell of ammonia The ammonia in the sewage might enter the indoor unit thro...

Page 25: ...to electric shock and other injuries 1 Remove the screws on the control box 2 Connect the power cord and earth wire to the main terminal 3 Connect the remote control wire to the subsidiary terminal box according to electric wiring diagram 4 Connect the power supply of the indoor and outdoor units to the main terminal 5 Tie the wire in the control box with the clamp tightly 6 After completing the w...

Page 26: ...n the ordinary polychloroprene sheathed flexible cord code designation H07RN F When connecting the terminal block with flexible cord make sure to use the round crimp style terminal for connection to the power supply terminal block Place the round crimp style terminals on the wires up to the covered part and secure in place When connecting the terminal block with a single core wire be sure to perfo...

Page 27: ......

Page 28: ...sources To return your used device please use the return and collection systems or contact the retailer where the product was purchased They can take this product for environmental safe recycling Specifications in this document are subject to change without notice in order that Hitachi Johnson Controls Air Conditioning Inc may bring the latest innovations to their customers Hitachi Johnson Control...

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