Table Of Contents; Introduction; Combination - Daikin VRV II RXYQ5MY1B Installation Manual

RXYQ5MY1B RXYQ14MY1B
RXYQ8MY1B RXYQ16MY1B
RXYQ10MY1B RXYQ18MY1B
RXYQ12MY1B RXYQ20MY1B
CONTENTS
1. INTRODUCTION...................................................................... 1
1-1. Combination ...................................................................... 1
1-2. Standard operation limit .................................................... 2
1-3. Standard supplied accessories ......................................... 2
1-4. Option accessory .............................................................. 2
1-5. Technical specifications (1)............................................... 2
1-6. Electrical specifications (1) ............................................... 4
2. MAIN COMPONENTS ............................................................ 5
3. SELECTION OF LOCATION ................................................... 5
4. INSPECTING AND HANDLING THE UNIT ............................. 6
5. UNPACKING AND PLACING THE UNIT................................. 6
6. REFRIGERANT PIPING .......................................................... 6
6-1. Selection of piping material ............................................... 6
6-2. Connecting the refrigerant piping...................................... 7
6-3. Example of connection...................................................... 9
6-4. Leak test and vacuum drying .......................................... 10
6-5. Pipe insulation................................................................. 11
6-6. Additional refrigerant charge ........................................... 11
7. FIELD WIRING ...................................................................... 12
7-1. Optional parts cool/heat selector .................................... 12
7-2. Power circuit and cable requirements ............................. 12
7-3. General ........................................................................... 12
7-4. Examples ........................................................................ 13
8. BEFORE OPERATION .......................................................... 15
8-1. Checks before initial start-up .......................................... 15
8-2. Test run........................................................................... 15
9. CAUTION FOR REFRIGERANT LEAKS ............................... 16
Caution
READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP
THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN YOUR
FILES FOR FUTURE REFERENCE.
Caution
IMPROPER INSTALLATION OR ATTACHMENT OF EQUIP-
MENT OR ACCESSORIES COULD RESULT IN ELECTRIC
SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR OTHER DAM-
AGE TO THE EQUIPMENT. BE SURE ONLY TO USE ACCES-
SORIES MADE BY DAIKIN WHICH ARE SPECIFICALLY
DESIGNED FOR USE WITH THE EQUIPMENT AND HAVE
THEM INSTALLED BY A PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE
AND INFORMATION.
Caution
The refrigerant R410A requires strict cautions for keeping the
system clean, dry and tight.
A.Clean and dry
Foreign materials (including mineral oils such as SUNISO oil or
moisture) should be prevented from getting mixed into the sys-
tem.
B.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 the chapter "Refrigerant piping work" carefully and follow
these procedures correctly.
1
RXYQ22MY1B RXYQ30MY1B RXYQ38MY1B
RXYQ24MY1B RXYQ32MY1B RXYQ40MY1B
RXYQ26MY1B RXYQ34MY1B RXYQ42MY1B
RXYQ28MY1B RXYQ36MY1B RXYQ44MY1B
1.
This installation manual concerns VRV inverters of the Daikin
RXYQ-M series. These units are designed for outdoor installation
and used for cooling and heatpump applications. The units are avail-
able in 3 standard sizes with nominal cooling capacities ranging from
14.0 to 133.5kW and nominal heating capacities ranging from 16.0 to
150.0kW.
The RXYQ-M units can be combined with Daikin VRV series indoor
units for air conditioning purposes.
The present installation manual describes the procedures for
unpacking, installing and connecting the RXYQ-M 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.

1-1 Combination

The indoor units can be installed in the following range.
• Always use appropriate indoor units compatible with R410A.
• Total capacity/quantity of indoor units
RXYQ46MY1B
RXYQ48MY1B
VRVII System air conditioner
Caution
Since design pressure is 3.8MPa or 38bar (for R407C units:
3.3MPa or 33bar), pipes of larger wall thickness may be required.
Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state. (If the refrigerant
is charged in a state of gas, its composition changes and the
system will not work properly.)
The indoor unit is for R410A. See the catalog for indoor unit
models which can be connected.
(Normal operation is not possible when connected to other
units.)
Caution
Do not allow children to mount on the outdoor unit, or avoid
placing any object on it. Falling or tumble may result in injury.

INTRODUCTION

To lean which models of indoor units are compatible with
R410A, refer to the product catalogs.
〈 〉 〈
Outdoor unit Total capacity of indoor units
RXYQ5MY1B ................... 62.5 ~ 162.5
RXYQ8MY1B .....................100 ~ 260
RXYQ10MY1B .............. 125 ~ 325
RXYQ12MY1B ...................150 ~ 390
RXYQ14MY1B ...................175 ~ 455
RXYQ16MY1B ...................200 ~ 520
RXYQ18MY1B ...................225 ~ 585
RXYQ20MY1B ...................250 ~ 650
RXYQ22MY1B ...................275 ~ 715
RXYQ24MY1B ...................300 ~ 780
RXYQ26MY1B ...................325 ~ 845
RXYQ28MY1B ...................350 ~ 910
RXYQ30MY1B ...................375 ~ 975
RXYQ32MY1B ...................400 ~ 1040
RXYQ34MY1B ...................425 ~ 1105
RXYQ36MY1B ...................450 ~ 1170
RXYQ38MY1B ...................475 ~ 1235
RXYQ40MY1B ...................500 ~ 1300
RXYQ42MY1B ...................525 ~ 1365
RXYQ44MY1B ...................550 ~ 1430
RXYQ46MY1B ...................575 ~ 1495
RXYQ48MY1B ...................600 ~ 1560
Installation
manual
〉 〈 〉
Total quantity of indoor units
8 units
13 units
16 units
19 units
20 units
20 units
20 units
20 units
22 units
32 units
32 units
32 units
32 units
32 units
34 units
36 units
38 units
40 units
40 units
40 units
40 units
40 units
English