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REYQ8~16P8Y1B
VRVIII System air conditioner
4PW39996-1A

Installation manual

3

3.

S

ELECTION

 

OF

 

LOCATION

This unit, both indoor and outdoor, is suitable for installation in a
commercial and light industrial environment.

This is a class A product. In a domestic environment this product may
cause radio interference in which case the user may be required to
take adequate measures.

Obtain the customer's permission before installing.

The inverter units should be installed in a location that meets the
following requirements:

1

The foundation is strong enough to support the weight of the unit
and the floor is flat to prevent vibration and noise generation.

2

The space around the unit is adequate for servicing and the
minimum space for air inlet and air outlet is available. (Refer to

figure 1

 and choose one of the possibilities).

In case of an installation site where sides A+B+C+D  have
obstacles, the wall heights of sides A+C have no impact on
service space dimensions. Refer to 

figure 1

 for impact of wall

heights of sides B+D on service space dimensions.

In case of an installation site where only the sides A+B have
obstacles, the wall heights have no influence on any
indicated service space dimensions.

The installation space required as shown in figure 1 is a
reference for cooling operation when the outdoor
temperature is 35°C.
If the outdoor temperature exceeds 35°C or the heat load
exceeds the maximum capacity of the outdoor unit, increase
the distances on the air intake side.

3

Make sure that there is no danger of fire due to leakage of
inflammable gas.

4

Ensure that water cannot cause any damage to the location in
case it drips out the unit (e.g. in case of a blocked drain pipe).

5

The piping length between the outdoor unit and the indoor unit
may not exceed the allowable piping length. (Refer to

"6.6. Example of connection" on page 7

)

6

Select the location of the unit in such a way that neither the
discharged air nor the sound generated by the unit disturbs
anyone.

7

Make sure that the air inlet and outlet of the unit are not
positioned towards the main wind direction. Frontal wind will
disturb the operation of the unit. If necessary, use a windscreen
to block the wind.

8

Do not install or operate the unit on locations where air contains
high levels of salt, like e.g. in the vicinity of oceans. (Refer for
further information to the engineering databook).

9

During installation, avoid the possibility that anybody can climb
on the unit or place objects on the unit.

Falls may result in injury.

10

When installing the unit in a small room, take measures in order
to keep the refrigerant concentration from exceeding allowable
safety limits in the event of a refrigerant leak.

11

To prevent dripping water to form a puddle underneath the unit,
install a drain pan (available as option kit).

Make sure to provide for adequate measures in order
to prevent that the outdoor unit be used as a shelter
by small animals.

Small animals making contact with electrical parts can
cause malfunctions, smoke or fire. Please instruct the
customer to keep the area around the unit clean.

If not, the unit may fall over and cause damage or
injury.

A B C D

Sides along the installation site with obstacles

Suction side

Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.

The equipment described in this manual may cause
electronic noise generated from radio-frequency
energy. The equipment complies to specifications that
are designed to provide reasonable protection against
such interference. However, there is no guarantee that
interference will not occur in a particular installation.
It is therefore recommended to install the equipment
and electric wires keeping proper distances away from
stereo equipment, personal computers, etc...

(See figure 2)

.

In places with weak reception, keep distances of 3 m
or more to avoid electromagnetic disturbance of other
equipment and use conduit tubes for power and
transmission lines.

In heavy snowfall areas, select an installation site
where snow will not affect the operation of the unit.

The refrigerant R410A itself is nontoxic, nonflammable
and is safe. If the refrigerant should leak however, its
concentration may exceed the allowable limit
depending on room size. Due to this, it could be
necessary to take measures against leakage. Refer to
the chapter 

"15. Caution for refrigerant leaks" on

page 26

.

Do not install in the following locations.

Locations where sulphurous acids and other
corrosive gases may be present in the atmosphere.
Copper piping and soldered joints may corrode,
causing refrigerant to leak.

Locations where a mineral oil mist, spray or vapour
may be present in the atmosphere.
Plastic parts may deteriorate and fall off or cause
water leakage.

Locations where equipment that produces electro-
magnetic waves is found.
The electromagnetic waves may cause the control
system to malfunction, preventing normal
operation.

Locations where flammable gases may leak, where
thinner, gasoline and other volatile substances are
handled, or where carbon dust and other
incendiary substances are found in the
atmosphere.
Leaked gas may accumulate around the unit,
causing an explosion.

When installing, take strong winds, typhoons or
earthquakes into account.
Improper installation may result in the unit turning
over.

1

Personal computer or radio

2

Fuse

3

Earth leakage breaker

4

Remote controller

5

Cool/heat selector

6

Indoor unit

Summary of Contents for VRVIII REYQ-P8

Page 1: ...INSTALLATION MANUAL REYQ8P8Y1B REYQ10P8Y1B REYQ12P8Y1B REYQ14P8Y1B REYQ16P8Y1B System air conditioner...

Page 2: ...m e 100 mm f 500 mm 4 a 10 mm b 300 mm c 10 mm d 500 mm e 20 mm a 50 mm b 100 mm c 50 mm d 500 mm e 100 mm 1500 500 13 2 1 6 3 4 6 5 6 9 10 7 8 2 1 A B C 5 3 2 1 6 4 3 4 2 b a c d A C B D a e b d e A...

Page 3: ...jeidemme mukaisesti 14 za p edpokladu e jsou vyu v ny v souladu s na imi pokyny odpov daj n sleduj c m norm m nebo normativn m dokument m 15 u skladu sa slijede im standardom ima ili drugim normativni...

Page 4: ...ujam temperat ra TS TSmin Minim l temperat ra zem spiediena pus L C TSmax Pies tin t temperat ra saska ar maksim lo pie aujamo spiedienu PS M C Dzesin t js N Spiediena dro bas ier ces iestat ana P bar...

Page 5: ...ging from 25 0 to 50 0 kW For changing the refrigerant flow to indoor units the REYQ P system can be combined with BS units of the types BSVQ100P BSVQ160P and BSVQ250P only Other BS unit types will ca...

Page 6: ...he Engineering Data Book Outdoor unit Total capacity of indoor units REYQ8 100 260 REYQ10 125 325 REYQ12 150 390 REYQ14 175 455 REYQ16 200 520 NOTE If the total capacity of the connected indoor units...

Page 7: ...nt concentration from exceeding allowable safety limits in the event of a refrigerant leak 11 To prevent dripping water to form a puddle underneath the unit install a drain pan available as option kit...

Page 8: ...foundation dimension 7 Distance between foundation bolt holes X Not allowed O Allowed units mm Prepare a water drainage channel around the foundation to drain waste water from around the unit If the...

Page 9: ...the pipe size nearest to the required size use the suitable adapters for the change over from inch to mm pipes field supply 6 3 Pipe connection Be sure to perform a nitrogen blow when brazing and to r...

Page 10: ...the system Great caution is needed when passing copper tubes through walls Block all gaps in the holes for passing out piping and wiring using sealing material field supply The capacity of the unit wi...

Page 11: ...outdoor unit side choose from the following table in accordance with the capacity of the outdoor unit example refnet joint A How to select the refnet header Choose from the following table in accordan...

Page 12: ...igerant branch kit to indoor units is 40 m or less however it can be extended up to 90 m if all the following conditions are fulfilled Required conditions Example drawings It is necessary to increase...

Page 13: ...Valve B 13 Valve C 14 Outdoor unit 15 To BS unit or indoor unit 16 Stop valve 17 Service port 18 Field piping 19 Gas flow NOTE Make sure to perform leak test and vacuum drying using the service ports...

Page 14: ...2 liquid 2 H E liquid 2 R10 Resistor current sensor R31T R32T Thermistor discharge M1C M2C R50 R59 Resistor R90 Resistor current sensor R95 Resistor current limiting S1NPH Pressure sensor high S1NPL...

Page 15: ...to leaked electrical current which will have to be discharged with the grounding Be sure to install an earth leakage breaker One that can handle high frequency electrical noise This unit uses an inve...

Page 16: ...of the transmission wiring terminals 1 Electric wiring diagram Printed on the back of the electric component box lid 2 Power wiring and ground wiring inside conduit When the wiring is routed out throu...

Page 17: ...iquid pipe 2 High pressure low pressure gas pipe 3 Finishing tape 4 Suction gas pipe 5 Transmission wiring 6 Insulation material 1 Power supply 380 415 V 3 N 50 Hz 2 Earth leakage breaker 3 Fuse 4 Gro...

Page 18: ...6 Refrigerant piping on page 4 The electrical work 1 Make sure there is no faulty power wiring or loose nuts See 8 Field wiring on page 9 2 Make sure there is no faulty transmission wiring or loose nu...

Page 19: ...t cannot be charged until all field wiring and field piping has been completed Refrigerant may only be charged after performing the leak test and the vacuum drying Charge the liquid refrigerant with t...

Page 20: ...tem charging over the permissible quantity can cause liquid hammer Always use protective gloves and protect your eyes when charging refrigerant When the refrigerant charging procedure is done or when...

Page 21: ...indoor temperature The unit will automatically select the cooling mode or heating mode for charging Outdoor temperature 0 C DB 43 C DB Indoor temperature 10 C DB 32 C DB Total indoor unit capacity 80...

Page 22: ...and may cause overcharging 7 Ready Press the button once within 5 minutes If the button is not pushed within 5 minutes P2 will be displayed on the remote controller Refer to 3 Remote controller malfun...

Page 23: ...e valve A and remove the refrigerant tank immediately after finishing the refrigerant charge operation The refrigerant charge port of these units have electric expansion valves that will close automat...

Page 24: ...x w w 20 95 x 100 w x w x w x x 21 100 x w x w x w x w NOTE If you get confused in the middle of the input process press the button to return to setting mode 1 initial state The H1P LED is off x Resum...

Page 25: ...tons LED state Throughout the manual the state of the LEDs is indicated as follows Setting the push button switch BS1 5 Function of the push button switch which is located on the outdoor unit PCB A1P...

Page 26: ...ormal w abnormal c under preparation or under test operation 2 Indication of low noise operation state x standard operation factory setting w operation 3 Indication of power consumption limitation set...

Page 27: ...seconds The H1P LED is on w Perform following steps 1 Press the button 3 times 2 Press the button once to confirm 3 Press the button in order to change the LED display to the following display 4 Press...

Page 28: ...iping length and correct the refrigerant charge level by recovering any excessive refrigerant with a refrigerant recovery machine Insufficient refrigerant E4 F3 Check if the additional refrigerant cha...

Page 29: ...pipe stop valve service port with the unit not operating refer to Pre charging on page 17 make sure to charge the remaining charging quantity using the following procedure 1 Turn the power of the ind...

Page 30: ...as the following calculate the volume of A B as a single room or as the smallest room 3 Calculating the refrigerant density using the results of the calculations in steps 1 and 2 above If the result o...

Page 31: ...N D UNIT TO OUT D UNIT TO IN D UNIT TO OUT D UNIT F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 8 7 7 6 6 3 5 6 13 12 1 1 2 3 4 5 3 4 7 8 2 9 6 4 1 2 5 7 7 8 1 9 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6...

Page 32: ...4PW39996 1A Copyright Daikin...

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