Daikin EKRSVHTA Installation manuals

INSTALLATION MANUAL

Refrigerant stop valves kit

EKRSVHTA

1

2

3

4

5

1

2

3

EKRSVHTA

ONTENTS

C

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

2. Accessories ............................................................................... 1

3. Installing the stop valves............................................................ 1

4. Guidelines for handling stop valves........................................... 1

5. Final check ................................................................................ 1

6. Vacuuming/recovery and maintenance on refrigerant side ....... 2

6.1. System overview............................................................................ 3

6.2. Recovery/vacuuming overview for 1 indoor unit maintenance

(R410A circuit connections) ........................................................... 3

NTRODUCTION

1. I

Thank you for purchasing this option kit.
The kit can only be connected to the EKHBRD indoor unit. The kit is
designed for wall mounted indoor installation.

The original instructions are written in English. All other languages
are translations of the original instructions.

2. A

CCESSORIES

21345

1x 1x1x1x 1x 1x

Refrigerant stop valves kit

age

P

Installation manual

1

2

3 3

Support plate
Stop valve
To outdoor unit

Finalise the refrigerant piping work (connect the prepared refrigerant
piping to the piping coming from the outdoor unit).

4. G

UIDELINES

FOR

HANDLING

STOP

VALVES

Installation manual
Support plate
Gas stop valve
Liquid stop valve
Fixing screws

3. I

NSTALLING

Caution for brazing.

Refer to the outdoor unit installation manual for cautions for
brazing.

These stop valves must be installed near to the unit, and on an
accessible place (when service is needed the stop valves need to be
closed and equipment for recovery/vacuuming has to be connected).

Decide where to install the stop valves and position the stop valves
on the wall by using the support plate.

THE

STOP

VALVES

Refer to the outdoor unit installation manual for guidelines for
handling stop valves.

INAL

5. F

Refer to the indoor unit installation manual for final check of the
indoor unit.
Additionally, make sure that all stop valves are open. Refer to the
vacuuming procedure of the outdoor unit.

CHECK

Installation manual

1

Refrigerant stop valves kit

4PW73662-1 – 04.2012

EKRSVHTA

6. V

ACUUMING

/

RECOVERY

AND

MAINTENANCE

ON

REFRIGERANT

SIDE

This flow chart indicates the main items and actions which have to be considered during vacuuming/recovery operations on the system. When
certain settings and operations explained in the flow chart are not followed this can be improper operation of the unit due to bad vacuuming/
recovery. In case of problems, please contact your local dealer.

R134a circuit needs

to be maintenanced?

No

R410A circuit needs

to be maintenanced?

Ye s

First installation

Ye s Ye s

Indoor unit was

powered on?

Ye s Ye s Ye s

Valves on R410A
circuit need to be

opened. Apply

outdoor unit field

setting 2-21 (see

installation manual of

outdoor unit)

Yes Indoor unit remocon

setting [E-00]=1 to

open electronic

expansion valve

No

Other indoor or

outdoor unit(s) were

powered on?

No

No Open stop valve

Start recovery/

vacuuming of
R134a circuit

indoor units

(a)

. Field

(2)

piping and
indoor unit

R410A

vacuuming can

start

Ye s

Open all

stopvalves (1)

(a)

and (2)

Maintenance

Complete indoor

system R410A

circuit?

Field piping +

indoor + outdoor

unit(s)?

No

Field piping only +

indoor unit

No

1 indoor unit?

Close this indoor

unit stop valve

(a)

(2)

Apply outdoor

unit field setting

2-21 (see

installation

manual of

outdoor unit)

Recovery start +

measure

recovered

R410A amount

Open stop valve

(a)

indoor units.

(2)

Field piping and

indoor unit R410A

vacuuming can start

Apply outdoor

unit field setting

2-21 (see

installation

manual of

outdoor unit)

Close stop valve

outdoor unit (1)

Open stop valve
indoor unit (2)

Apply outdoor unit

field setting 2-21

(see installation

manual of outdoor

(a)

(a)

unit)

Maintenance

Start vacuuming

Recharge

system with

measured

R410A amount

Cancel outdoor
unit field setting

2-21 (see

installation

manual of

outdoor unit)

Open stop
valve(s) (if
applicable)

Restart system

(a) (1) and (2) refers to the legend of the figure in next chapter "System overview" on page 3.

EKRSVHTA

Refrigerant stop valves kit

4PW73662-1 – 04.2012

Installation manual

2