READ THIS MANUAL ATTENTIVELY BEFORE STARTING
UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN
YOUR FILES FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
DAIKIN EQUIPMENT IS DESIGNED FOR COMFORT
APPLICATIONS. FOR USE IN OTHER APPLICATIONS,
PLEASE CONTACT YOUR LOCAL DAIKIN DEALER.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DEALER FOR ADVICE AND
INFORMATION.
THIS AIR CONDITIONER COMES UNDER THE TERM
"APPLIANCES NOT ACCESSIBLE TO THE GENERAL
PUBLIC".
The English text is the original instruction. Other languages are
translations of the original instructions.
The refrigerant R410A requires strict cautions for keeping
the system clean, dry and tight.
■Clean and dry
Foreign materials (including mineral oils such as
SUNISO oil or moisture) should be prevented from
getting mixed into the system.
■Tight
R410A does not contain any chlorine, does not
destroy the ozone layer and does not reduce the
earth's protection against harmful ultraviolet radiation.
R410A can contribute slightly to the greenhouse
effect if it is released. Therefore we should take
special attention to check the tightness of the
installation.
Read "6. Refrigerant piping" on page 4 carefully and follow
these procedures correctly.
Since design pressure is 4.0 MPa or 40 bar (for R407C
units: 3.3 MPa or 33 bar), pipes of larger wall thickness
may be required. The wall thickness of piping must be
carefully selected, refer to paragraph "6.2. Selection of
piping material" on page 5 for more details.
1.INTRODUCTION
This installation manual concerns VRV inverters of the Daikin
REYQ-P series. These units are designed for outdoor installation and
used for cooling and heat pump applications. The REYQ8~16P
system is a single outdoor system and can not be combined with
other outdoor units in a multi outdoor system. This unit has rated
cooling capacities ranging from 22.4 to 45.0 kW and rated heating
capacities ranging 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 cause malfunctions
when combined with the REYQ-P system.
The REYQ-P units can be combined with Daikin VRV indoor units for
air conditioning purposes suitable for R410A.
The present installation manual describes the procedures for
unpacking, installing and connecting the REYQ-P units. Installation of
the indoor units is not described in this manual. Always refer to the
installation manual supplied with these units for their installation.
REYQ8+12P9Y1B + REYQ10-14-16P8Y1B
VRVIII System air conditioner
4PW48462-1B – 07.2010
Installation manual
1
1.1.Indoor capacity range
The indoor units can be installed in the following range.
■Always use appropriate indoor units compatible with R410A.
To learn which models of indoor units are compatible with
R410A, refer to the product catalogs.
■If the total capacity of the connected indoor units
exceeds the capacity of the outdoor unit, cooling
and heating performance may drop when running
the indoor units.
Refer to the section on performance characteristics in the Engineering Data Book for details.
■There are restrictions on the refrigerant pipe
connection order between outdoor units during
installation in case of a multiple outdoor unit
system.
Install according to the following restrictions.
The capacities of outdoor units A, B, and C must
fulfill the following restriction conditions: A≥B≥C.
ABC
123
1To indoor units
2Multi outdoor unit connection piping kit (first
branch)
3Multi outdoor unit connection piping kit
(second branch)
See location 2 in figure 18 for reference to where following
accessories are supplied with the unit.
REYQ
810 12 14 16
Liquid accessory pipe (1)1x 1x 1x 1x 1x
Liquid accessory pipe (2)1x 1x 1x 1x 1x
Ø22.2
Suction gas accessory pipe (1)
Suction gas accessory pipe (2)
High pressure/low pressure
accessory pipe (1)
High pressure/low pressure
accessory pipe (2)
Accessory joint (angle of 90°) (1)1x 1x 1x 1x 1x
Accessory joint (angle of 90°) (2)1x 1x 1x 1x 1x
Accessory joint1x————
Ø22.2
Ø28.6
Ø19.1
Ø22.2
Ø28.6
Ø15.9
Ø19.1
Ø19.1
Ø15.9
Ø19.1
Ø22.2
1x————
—1x———
— — 1x 1x 1x
1x————
—1x———
— — 1x 1x 1x
1x————
—1x1x——
— — — 1x 1x
1x————
1x 1x — —
— — — 1x 1x
Ø25.4
Ø19.1
1.3.Optional accessories
1.2.Standard supplied accessories
See location 1 in figure 18 for reference to where following
accessories are supplied with the unit.
To install the above outdoor unit, the following optional parts are also
required.
Refrigerant branching kit (for R410A only: Always use an appropriate
kit dedicated for your system.)
Refnet headerRefnet joint
3 pipes2 pipes3 pipes2 pipes
KHRQ23M29HKHRQ22M29HKHRQ23M20TKHRQ22M20T
KHRQ23M64HKHRQ22M64HKHRQ23M29T9 KHRQ22M29T
KHRQ23M75HKHRQ22M75HKHRQ23M64TKHRQ22M64T
KHRQ23M75TKHRQ22M75T
To select an optimum refrigerant branching kit, refer to "6. Refrigerant
piping" on page 4.
1.4.Technical and Electrical specifications
Refer to the Engineering Data Book for the complete list of
specifications.
2.MAINCOMPONENTS
For main components and function of the main components, refer to
the Engineering Data Book.
Installation manual
2
REYQ8+12P9Y1B + REYQ10-14-16P8Y1B
VRVIII System air conditioner
4PW48462-1B – 07.2010
3.SELECTIONOFLOCATION
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.
■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.
Obtain the customer's permission before installing.
The inverter units should be installed in a location that meets the
following requirements:
1The foundation is strong enough to support the weight of the unit
and the floor is flat to prevent vibration and noise generation.
If not, the unit may fall over and cause damage or
injury.
2The 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).
A B C DSides along the installation site with obstacles
Suction side
■ 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.
3Make sure that there is no danger of fire due to leakage of
inflammable gas.
4Ensure 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).
5The 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 8)
6Select the location of the unit in such a way that neither the
discharged air nor the sound generated by the unit disturbs
anyone.
7Make 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.
8Do 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).
9During 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.
Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.
11 To prevent dripping water to form a puddle underneath the unit,
install a drain pan (available as option kit).
12 The equipment is not intended for use in a potentially explosive
atmosphere.
■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).
1Personal computer or radio
2Fuse
3Earth leakage breaker
4Remote controller
5Cool/heat selector
6Indoor unit
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.
REYQ8+12P9Y1B + REYQ10-14-16P8Y1B
VRVIII System air conditioner
4PW48462-1B – 07.2010
Installation manual
3
4.INSPECTINGANDHANDLINGTHEUNIT
At delivery, the packing should be checked and any damage should
be reported immediately to the carrier claims agent.
When handling the unit, take into account the following:
1Fragile, handle the unit with care.
Keep the unit upright in order to avoid compressor
damage.
2Choose on beforehand the path along which the unit is to be
brought in.
3Bring the unit as close as possible to its final installation position
in its original package to prevent damage during transport as
shown in figure 4.
■Prepare a water drainage channel around the
foundation to drain waste water from around the unit.
■If the unit is to be installed on a roof, check the
strength of the roof and its drainage facilities first.
■If the unit is to be installed on a frame, install the
waterproofing board within a distance of 150 mm
under the unit in order to prevent infiltration of water
coming from under the unit.
■When installed in a corrosive
environment, use a nut with
plastic washer (1) to protect the
nut tightening part from rust.
1
1Packaging material
2Belt sling
3Opening
4Protector
4Lift the unit preferably with a crane and 2 belts of at least 8 m
long as shown in figure 4.
Always use protectors to prevent belt damage and pay attention
to the position of the unit's centre of gravity.
NOTE
Use a belt sling of ≤20 mm wide that adequately
bears the weight of the unit.
A forklift can only be used for transport as long as the unit
remains on its pallet as shown in figure 5.
5For placing the unit on its final position, a crane and 2 belts must
be used. These belts must be pulled through the small openings
on the bottom of the unit as shown in figure 4.
5.UNPACKINGANDPLACINGTHEUNIT
■Remove the four screws fixing the unit to the pallet.
■Make sure the unit is installed level on a sufficiently strong base
to prevent vibration and noise.
Do not use stands to only support the corners. (See
figure 6)
XNot allowed
OAllowed (units: mm)
■The height of the foundation must at least be 150 mm from the
floor.
■The unit must be installed on a solid longitudinal foundation
(steelbeam frame or concrete) and make sure the base under
the unit is larger than the grey marked area as indicated in
figure 3.
1Hole for foundation bolt
2Inner dimension of the base
3Distance between foundation bolt holes
4Depth of unit
5Outher dimension of the base
6Longitudinal foundation dimension
7Distance between foundation bolt holes
■Fasten the unit in place using four
foundation bolts M12. It is best to screw in
the foundation bolts until their length
remains 20 mm above the foundation
surface.
20 mm
6.REFRIGERANTPIPING
Do not insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it
will cause injury.
Use R410A to add refrigerant.
All field piping must be installed by a licensed refrigeration
technician and must comply with relevant local and
national regulations.
Caution to be taken when brazing refrigerant piping
Do not use flux when brazing copper-to-copper refrigerant
piping. (Particularly for the HFC refrigerant piping)
Therefore, use the phosphor copper brazing filler metal
(BCuP) which does not require flux.
Flux has extremely harmful influence on refrigerant piping
systems. For instance, if the chlorine based flux is used, it
will cause pipe corrosion or, in particular, if the flux
contains fluorine, it will damage the refrigerant oil.
Be sure to perform a nitrogen blow when brazing. Brazing
without releasing nitrogen into the piping will create large
quantities of oxidized film on the inside of the pipes,
adversely affecting valves and compressors in the
refrigerating system and preventing normal operation.
After completing the installation work, check that the
refrigerant gas does not leak.
Do not open stop valves until all field wiring is according to
the specifications (refer to "8. Field wiring" on page 10),
the checking of the unit has been completed and all
installation conditions are fulfilled (refer to "10. Checking of
unit and installation conditions" on page 15).
Toxic gas may be produced if the refrigerant gas leaks into
the room and comes in contact with a source of fire.
Ventilate the area immediately in the event of a leak.
In the event of a leak, do not touch the leaked refrigerant
directly. Frostbite may be caused.
6.1.Installation tools
Make sure to use installation tools (gauge manifold charge hose, etc.)
that are exclusively used for R410A installations to withstand the
pressure and to prevent foreign materials (e.g. mineral oils such as
SUNISO and moisture) from mixing into the system.
(The screw specifications differ for R410A and R407C.)
Use a 2-stage vacuum pump with a non-return valve which can
evacuate to –100.7 kPa (5 Torr, –755 mm Hg).
NOTE
Make sure the pump oil does not flow oppositely into
the system while the pump is not working.
Installation manual
4
REYQ8+12P9Y1B + REYQ10-14-16P8Y1B
VRVIII System air conditioner
4PW48462-1B – 07.2010
6.2.Selection of piping material
1Large knockout hole
2Drill
3Points for drilling
6.4.Connecting the refrigerant piping
1. Foreign materials inside pipes (including oils for fabrication)
must be 30 mg/10 m or less.
2. Use the following material specification for refrigerant piping:
■ Size: determine the proper size referring to chapter
"6.6. Example of connection" on page 8.
■ Construction material: phosphoric acid deoxidized seamless
copper for refrigerant.
■ Temper grade: use piping with temper grade in function of the
pipe diameter as listed in the table below.
Pipe Ø Temper grade of piping material
≤15.9O
≥19.11/2H
O = Annealed
1/2H = Half hard
■ The pipe thickness of the refrigerant piping should comply
with relevant local and national regulations. The minimal pipe
thickness for R410A piping must be in accordance with the
table below.
Minimal thickness
Pipe Ø
6.40.8022.20.80
9.50.8028.60.99
12.70.8034.91.21
15.90.9941.31.43
19.10.80
t (mm)
Pipe Ø
Minimal thickness
t (mm)
1Front connection or side connection
Installation of refrigerant piping is possible as front connection or
side connection (when taken out from the bottom) as shown in
recommend you remove the burrs and paint
the edges and areas around the edges using
repair paint to prevent rusting.
■When passing electrical wiring through the
knockout holes, wrap the wiring with
protective tape to prevent damage as shown
in figure 8.
3. Make sure to use the particular branches of piping that have
been selected referring to chapter "6.6. Example of connection"
on page 8.
4. In case the required pipe sizes (inch sizes) are not available, it is
also allowed to use other diameters (mm sizes), taken the
following into account:
■ select 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 read the
paragraph "Caution to be taken when brazing refrigerant piping" on
page 4 first.
NOTE
The pressure regulator for the nitrogen released when
doing the brazing should be set to 0.02 MPa or less.
(See figure 12)
1Refrigerant piping
2Location to be brazed
3Nitrogen
4Taping
5Manual valve
6Regulator
7Nitrogen
Do not use anti-oxidants when brazing the pipe joints.
Residue can clog pipes and break equipment.
REYQ8+12P9Y1B + REYQ10-14-16P8Y1B
VRVIII System air conditioner
4PW48462-1B – 07.2010
Installation manual
5
2Removing the pinched piping (See figure 9)See figure 9.
Never remove the pinched piping by brazing.
Any gas or oil remaining inside the stop valve may blow off
the pinched piping.
Failure to observe the instructions in procedure below
properly may result in property damage or personal injury,
which may be serious depending on the circumstances.
1Service port
2Stop valve
3Point of pipe cutting just above brazing point or above marking
A
Pinched piping
B
Pinched piping
Use the following procedure to remove the pinched piping:
1
Remove the valve lid and make sure
that the stop valves are fully closed.
2
Connect a charge hose to service ports of all stop
valves.
3
Recover gas and oil from the pinched piping by
using a recovery unit.
Do not vent gases into the atmosphere.
4
When all gas and oil is recovered from the pinched
piping, disconnect the charge hose and close the
service ports.
5
In case the pinched piping lower part looks like
detail in figure 9, follow instructions as per
A
procedure steps 7+8.
In case the pinched piping lower part looks like
detail in figure 9, follow instructions as per
B
procedure steps 6+7+8.
6
Cut off the lower part of the smaller pinched
piping with an appropriate tool (e.g. a pipe
cutter, a pair of nippers, ...) so that a crosssection is open, allowing remaining oil to
drip out in case the recovery was not complete.
Wait until all oil is dripped out.
7
Cut the pinched piping off with a pipe cutter just
above the brazing point or just above the marking in
case there is no brazing point.
Never remove the pinched
piping by brazing.
8
Wait until all oil is dripped out in case the recovery
was not complete, and only then proceed with
connection of the field piping.
Precautions when connecting field piping.
Add brazing material as shown in the figure.
■Be sure to use the supplied accessory pipes
when carrying out piping work in the field.
■Be sure that the field installed piping does not
touch other pipes, the bottom panel or side
panel. Especially for the bottom and side
connection, be sure to protect the piping with
suitable insulation, to prevent it from coming into
contact with the casing.
3Connecting refrigerant piping to the outdoor unit
NOTE
All local interunit piping are field supplied except
the accessory pipes.
■Front connection:
Remove the stop valve cover to connect. (See figure 11) (A)
■Bottom connection:
Remove the knockout holes on the bottom frame and route the
piping under the bottom frame. (See figure 11) (B)
■In case of REYQ8, use the accessory joint for connecting the
suction gas accessory pipe (2) to the suction gas stop valve.
(See figure 11) (C)
1Liquid pipe stop valve
2Suction gas pipe stop valve
3High pressure/low pressure gas pipe stop valve
4Brazing
5Liquid accessory pipe (1)
6Suction gas accessory pipe (1)
7High pressure/low pressure gas accessory pipe (1)
8Accessory joint (angle 90°) (1)
Make sure that the onsite piping does not come in
contact with other piping, the bottom frame or side
panels of the unit.
REYQ8+12P9Y1B + REYQ10-14-16P8Y1B
VRVIII System air conditioner
4PW48462-1B – 07.2010
4Branching the refrigerant piping
For installation of the refrigerant branching kit, refer to the
installation manual delivered with the kit.
(See figure 14)
1Horizontal surface
Follow the conditions listed below:
- Mount the refnet joint so that it branches either
horizontally or vertically.
- Mount the refnet header so that it branches horizontally.
5Piping length restrictions
Make sure to perform the piping installation within the range of
the maximum allowable pipe length, allowable level difference
and allowable length after branching as indicated in
"6.6. Example of connection" on page 8.
6.5.Protection against contamination when
installing pipes
- Take measures to prevent foreign materials like moisture and
contamination from mixing into the system.
Installation periodProtection method
More than a monthPinch the pipe
Less than a monthPinch or tape the pipe
Regardless of the period
- 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
will drop and small animals may enter the machine.)
Example: passing piping out through the front
1
1Plug the areas marked with
"".
(When the piping is routed
from the front panel.)
After all the piping has been connected, make sure there is
no gas leak. Use nitrogen to perform a gas leak check.
REYQ8+12P9Y1B + REYQ10-14-16P8Y1B
VRVIII System air conditioner
4PW48462-1B – 07.2010
Installation manual
7
Loading...
+ 23 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.