Panasonic PAW-SERVER-PKEA-1 Manuel utilisateur

INSTALLATION INSTRUCTIONS

– Server Back-Up PC Board –

For PAW-SERVER-PKEA-1 Type PC Board

Model No.

PCB Type

PAW-SERVER-PKEA-1 V5.2

For installation in the following indoor units

2,5 kW 3,5 kW 4,2 kW 5,0 kW

PKEA Wall-mounted Indoor Unit CS-E9PKEA

CS-E12PKEA

CS-E15PKEA

CS-E18PKEA

Outdoor Unit

E9PKEA

E12PKEA

E15PKEA

E18PKEA

Refrigerant R410A is used in the outdoor units.

2,5 kW

3,5 kW

4,2 kW

5,0 kW

TKEA

Wall-mounted Indoor Unit CS-Z25TKEA

CS-Z35TKEA

CS-Z42TKEA

CS-Z50TKEA

Outdoor Unit

Z25TKEA

Z35TKEA

Z42TKEA

Z50TKEA

Refrigerant R32 is used in the outdoor units.

2,5 kW

3,5 kW

4,2 kW

5,0 kW 7,1 kW

YKEA Wall-mounted Indoor Unit

Z25YKEA

Z35YKEA

Z42YKEA

CS-Z50YKEA

Z50YKEA

Outdoor Unit CU-Z25YKEA

CU-Z35YKEA

CU-Z42YKEA

CU-Z50YKEA CU-Z50YKEA

Refrigerant R32 is used in the outdoor units.

For installation in all Panasonic Room Air conditioner units which include the CN-CNT connector for SG Ready mode.

Installation Manual for PAW-SERVER-PKEA-1 Type PC Board

Release Ref. IB_PAW-SERVER-PKEA-1

Release Date 01.07.2023

Main features of PAW-SERVER-PKEA-1 Type PC Board

 Each PAW-SERVER-PKEA PCB can handle two PKEA, TKEA or YKEA indoor units in standard mode

or up to two RAC units with CN-CNT connector in SG Ready mode.

Using Dip-Switch setting, the PCB can handle two modes:

STANDARD MODE

 Cascade management

– Master/Slave configuration

– Performance enhancement through Slave unit activation

– Master/Slave changeover in set intervals

 Back-up functionality

– In case of an alarm, the other unit becomes the Master

 Server room overheating prevention

 Energy saving mode

 Two different third-party BMS management modes

For more details, please see “Operation Logic” on page 8 of this document.

SG-READY MODE

– SG-Ready port

For more details, please see “Operation Logic” on page 11 of this document.

PAW-SERVER-PKEA-1

Server Back-Up PC Board

Warning This symbol refers to a hazard or unsafe procedure or practice that can result in severe personal

injury or death.

Caution This symbol refers to a hazard or unsafe procedure or practice that can result in personal injury

or product or property damage.

Warning

 Be sure to arrange installation by the dealer where the system was purchased or by a professional installer. Electric

shock or fire may result if an inexperienced person performs any installation or wiring procedures incorrectly.

 Be sure that this unit is securely installed in accordance with these “Instructions for the Electrical Installer”. Electric

shock or fire may result if any installation or wiring procedures are incorrectly performed.

 Only a qualified electrician should attempt to connect this system, in accordance with the instructions in this manual.

Insufficient electrical circuit capacity or incorrect installation may cause electric shock and fire.

 Use the specified cables for the electrical connections, and connect the cables securely. Run and fasten the cables

securely so that external forces or pressure placed on the cables will not be transmitted to the connection terminals.

Overheating or fire may result if connections or attachments are not secure.

 Depending on the installation conditions and location, an earth leakage breaker may be required. If an earth leakage

breaker is not installed, there is a danger of electric shock or fire.

 The installation location requires the use of a circuit breaker. Failure to use a circuit breaker may result in electric shock

or fire.

 Circuit breaker must be incorporated in the fixed wiring in accordance with the wiring regulations. The circuit breaker

must be an approved 10-16 A, having a contact separation in all poles.

Caution

 Ground yourself to discharge static electricity before performing any wiring.

After installation is completed,

perform a test run to check for operating trouble. Explain operating

procedures to the customer following the CONNECTION SCHEME

and the OPERATION LOGIC.

Read the following instructions carefully, and carry out secure installation and electrical work.

The precautions given in this manual consist of specific “Warnings” and “Cautions”. They provide

important safety-related information. Be sure to strictly observe all safety procedures. The labels and

their meanings are as described below.

For your safety

n. 1 PAW-SERVER-PKEA-1

n. 2 CAB-SERV, indoor unit connectors

PAW-SERVER-PKEA-1

CAB-SERV CAB-SERV

Detail 1

Indoor Unit “A” Indoor Unit “B”

Cable 4 x 0,22 mq shielded length 5 m.

Detail 2

Remote Controller

Parts supplied

STANDARD MODE

Connection scheme

(all items inside the server room)

Dry Contacts

2 x IN – 4 x OUT

Detail 1 (for each indoor unit): how to connect CAB-SERV to indoor unit PCB

1) Remove the front panel of the indoor unit and the cable box cover (pic. 1).

2) Lift the terminal block (pic. 2).

3) Insert the CAB-SERV cable from the rear of the indoor unit into the trough-hole toward the

front side, just near the indoor unit PC Board (pic. 3, 4).

4) Insert the CAB-SERV connector into the CN-CNT plug on the Indoor PC Board (pic. 5, 6).

Last Indoor unit models have CN-CNT plug near the terminal block.

5) Connect the ground wire of CAB-SERV on a ground tab available on the indoor unit.

Pic. 1

Pic. 2

Pic. 4

Pic. 3

Pic. 5

Pic. 6

Pic. 4

Detail 2

Connect the Remote Controller to the CN-RMT plug on the top-left side of the

PAW-SERVER-PKEA-1.

The ground line of the Remote Controller cable has NO connection (you may also cut the wire).

Conect the 4 wires cable between PAW-SERVER-PKEA-1 and the unit “A” and “B” paying attention to

the terminal labels:

A1 -> YELLOW wire of CAB-SERVER, indoor unit “A” (Ground);

A2 -> WHITE wire of CAB-SERVER, indoor unit “A” (+12 Vdc);

A3 -> GREEN wire of CAB-SERVER, indoor unit “A” (Tx signal);

A4 -> BROWN wire of CAB-SERVER, indoor unit “A” (Rx signal);

Shield (not connected to PAW-SERVER-PKEA-1) -> Green wire of CAB-SERVER

B1 -> YELLOW wire of CAB-SERVER, indoor unit “B” (Ground);

B2 -> WHITE wire of CAB-SERVER, indoor unit “B” (+12 Vdc);

B3 -> GREEN wire of CAB-SERVER, indoor unit “B” (Tx signal);

B4 -> BROWN wire of CAB-SERVER, indoor unit “B” (Rx signal);

Shield (not connected to PAW-SERVER-PKEA-1) -> Green wire of CAB-SERVER

In the lower part of the PAW-SERVER-PKEA-1 you can find 2 INPUT and 4 OUTPUT Dry Contacts.

OUTPUT Dry Contacts can handle max. 48 Volt - 3 Ampere.

Remote Controller

Ground line Remote Controller (Do not connect)

Indoor Unit “B” Indoor Unit “A”

CAB-SERV CAB-SERV

PAW-SERVER-PKEA-1

A1 A2 A3 A4 B1 B2 B3 B4

CN-RMT

I1 I1 I2 I2 O1 O1 O2 O2 O3 O3 O4 O4

DIP

Here are the functions available:

INPUT (NO Voltage):

 (I1 – I1) -> Dip-Switch n. 3 is ON: Short Circuit -> Set Unit “A” ON.

Dip-Switch n. 3 is ON: Open Circuit -> Set Unit “A” OFF.

Dip-Switch n. 3 is OFF: Change from Short to Open Circuit -> System OFF.

Dip-Switch n. 3 is OFF: Change from Open to Short Circuit -> System ON.

 (I2 – I2) -> Same functions as above described for Unit “B”

Note: For Restart function dry contact inputs I1 and I2 need a jumper (one for

each input terminal)

OUTPUT (Max. 48 Volt - 3 Ampere):

 (O1 – O1) -> Always available.

Short Circuit -> ON state of unit “A”.

Open Circuit -> OFF state of unit “A”.

 (O2 – O2) -> Always available.

Short Circuit -> ON state of unit “B”.

Open Circuit -> OFF state of unit “B”.

 (O3 – O3) -> Always available.

Short Circuit -> NO Alarm unit “A”.

Open Circuit -> ALARM unit “A”.

 (O4 – O4) -> Always available.

Short Circuit -> NO Alarm unit “B”.

Open Circuit -> ALARM unit “B”.

Connection example:

Set OFF/ON unit “A”

Set OFF/ON unit “B”

Deatail 2

A1 A2 A3 A4 B1 B2 B3 B4

CN-RMT

I1 I1 I2 I2 O1 O1 O2 O2 O3 O3 O4 O4

24 Vac

ALARM

Unit “B”

ALARM

Unit “A”

ON State

Unit “B”

ON State

Unit “A”

Dry Contacts

The PAW-SERVER-PKEA-1 can handle two Units of PKEA, TKEA or YKEA series, for Computer Room

installations.

Operation parameters are set by the Remote Controller for both units.

- Cascade Management:

PAW-SERVER-PKEA-1 handles the units as follow described:

 One unit is Master and the other one is Slave (at first power supply unit “A” will be Master).

 When ON state is set on the Remote Controller, only the Master unit starts.

 Room temperature is detected by the Master unit.

 Every 12 hours working interval, Slave becomes Master.

 Slave unit will switch to ON in these cases:

o COOLING/DRY Mode: (Room Temperature – Set Temperature) ≥ 2 °C

o HEATING Mode: (Set Temperature – Room Temperature) ≥ 5 °C

Slave unit will switch OFF in these cases:

o COOLING/DRY Mode: Room Temperature = Set Temperature

o HEAT Mode: Room Temperature = Set Temperature

Note: For RESTART function input dry contacts I1 and I2 must have a jumper.

- Back-up:

If an alarm occurs on one unit, the other one becomes Master.

When the failure is over, the repaired unit will become Master.

- Server Room Overheating prevention:

If indoor temperature rises above 28 °C, both indoor unit alarms will be activated.

- Dip Switch functions:

Inside the PAW-SERVER-PKEA-1, removing the central cover, you find 4 dip-switches.

 Dip-Switch n. 1 is for service only. It must be set to ON.

 Dip-Switch n. 2 ON: enables “Energy Saving Mode”.

If room temperature is between 8 °C and 18 °C, the units will be OFF (indoor temperature is

checked by the Master unit). This fuction can be enabled together with Third party BMS mode.

 Dip-Switch n. 3 ON: enables “Third Party BMS Management: mode “A” (remote controller

DISABLED)”.

SETTING PROCEDURE

1. Switch ON the unit and set up operation parameters (mode, set temperature, fan speed,

vane position)

2. Set to ON Dip Switch n. 3

From now on the PAW-SERVER-PKEA-1 stores the functioning parameters (mode, set

temperature, fan speed, vane position) and ignores the Remote Controller.

STANDARD MODE

Operation Logic

Only ON/OFF state will be possible through the dry contacts I1, I2 (you can find them on the

lower part of the PAW-SERVER-PKEA-1).

Third party BMS can just operate through dry contacts and there is no way to read or modify

the system parameters set by the Remote Controller.

It is also possibile to enable Dip-Switch n. 2 for “Energy Saving Mode”

 Dip-Switch n. 4 ON: enables “Third Party BMS Management: mode “B” (remote controller

ENABLED)”.

SETTING PROCEDURE

3. Switch ON the unit and set up operation parameters (mode, set temperature, fan speed,

vane position)

4. Set to ON Dip Switch n. 4

From now on ON/OFF state will be possible through the dry contacts I1, I2 (you can find them

on the lower part of the PAW-SERVER-PKEA-1).

Remote controller can operate normally.

Improper setting to ON of both Dip Switch n. 3 and 4, will be handled as Dip Switch n. 3 ON.

Third party BMS can just operate through dry contacts and there is no way to read or modify

the system parameters set by the Remote Controller.

It is also possibile to enable Dip-Switch n. 2 for “Energy Saving Mode”

Note: Service functions (RC Reset, AC Reset, Check) are not available through PAW-SERVER-PKEA-1

For Service Functions connect the remote controller directly to the indoor unit.

Emergency button on the indoor unit is overridden by Remote Controller settings.

Indoor Unit “A” Indoor Unit “B” (Optional)

Cable 4 x 0,22 mq shielded length 5 m.

Wired Remote

Controller

(Optional)

Ready Port and PV port:

Connection scheme

Remote Controller

Panasonic Comfort

Cloud

(Optional for all RAC

units with built in

WLAN)

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