Daikin RXQ18P7W1BA Installation Manual download pdf (Page 6)

Installation manual

RX(Y)Q5-10-12P7W1B + RXQ8P7W1B + RXYQ8P8W1B +

RXYHQ12P8W1B + RX(Y)Q14~18P7W1BA

VRVIII System air conditioner

4PW48461-1

CONTENTS Page

1. Introduction................................................................................ 1

1.1. Combination ................................................................................. 2

1.2. Standard supplied accessories ....................................................2

1.3. Optional accessories.................................................................... 3

1.4. Technical and Electrical speciﬁcations.........................................3

2. Main components ...................................................................... 3

3. Selection of location .................................................................. 3

4. Inspecting and handling the unit................................................ 4

5. Unpacking and placing the unit ................................................. 4

6. Refrigerant piping...................................................................... 5

6.1. Installation tools ...........................................................................5

6.2. Selection of piping material .......................................................... 5

6.3. Pipe connection............................................................................ 6

6.4. Connecting the refrigerant piping ................................................. 6

6.5. Protection against contamination when installing pipes............... 8

6.6. Example of connection................................................................. 9

7. Leak test and vacuum drying .................................................. 11

8. Field wiring .............................................................................. 12

8.1. Internal wiring – Parts table........................................................ 12

8.2. Optional parts cool/heat selector................................................ 13

8.3. Power circuit and cable requirements ........................................13

8.4. General cautions ........................................................................ 14

8.5. System examples....................................................................... 15

8.6. Leading power line and transmission line ..................................15

8.7. Field line connection: transmission wiring

and cool/heat selection ..............................................................16

8.8. Field line connection: power wiring ............................................17

8.9. Wiring example for wiring inside unit.......................................... 17

9. Pipe insulation ......................................................................... 18

10. Checking of unit and installation conditions ............................ 18

11. Charging refrigerant ................................................................ 18

11.1. Important information regarding the refrigerant used................. 18

11.2. Precautions when adding R410A............................................... 19

11.3. Stop valve operation procedure .................................................19

11.4. How to check how many units are connected ............................19

11.5. Additional refrigerant charge ...................................................... 20

11.6. Checks after adding refrigerant.................................................. 24

12. Before operation...................................................................... 25

12.1. Service precautions.................................................................... 25

12.2. Checks before initial start-up...................................................... 25

12.3. Field setting................................................................................ 25

12.4. Test operation............................................................................. 27

13. Service mode operation .......................................................... 29

14. Caution for refrigerant leaks .................................................... 29

15. Disposal requirements............................................................. 30

1. INTRODUCTION

This installation manual concerns VRV inverters of the Daikin

RX(Y)Q-P + RXYHQ series. These units are designed for outdoor

installation and used for cooling and heat pump applications. The

RXQ-P7 cooling only series consist of 7 main stand-alone units and

has nominal cooling capacities ranging from 14.0 to 49.0 kW. The

RXY(H)Q-P series can be combined from 8 main units and has

nominal cooling capacities ranging from 14.0 to 147 kW and nominal

heating capacities ranging from 16.0 to 170 kW.

The RX(Y)Q-P + RXYHQ units can be combined with Daikin VRV

indoor units for air conditioning purposes, and suitable for R410A.

The present installation manual describes the procedures for

unpacking, installing and connecting the RX(Y)Q-P + RXYHQ 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.

RXQ5~12P7W1B RXYHQ12P8W1B

RXQ14~18P7W1BA RXYQ14~18P7W1BA

RXYQ5-10-12P7W1B

RXYQ8P8W1B

VRVIII System air conditioner

Installation manual

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 refrigerant charge of the system must be less than

100 kg. This means that in case the calculated refrigerant

charge is equal to or more than 95 kg you must divide your

multiple outdoor system into smaller independent systems,

each containing less than 95 kg refrigerant charge.

For factory charge, refer to the unit name plate.

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 5 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.

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Daikin RXQ18P7W1BA Installation Manual Page 6

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