Panasonic Secon H Series Handbuch

‘H / J’Series Typical

Installation and setup

Monobloc System

Revision 1.4 January 10, 2022

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This manual is designed to be a quick guide to the most common type of instal-

lation for a Panasonic Monobloc system.

This assumes heating via a buffer tank or low loss header, domestic hot water

via a cylinder with sensor pocket and immersion heater, 3 port diverting valve

and remote room programmable temperature controller.

In the above system the monobloc units functions are controlled by the units own controller and this

is only used by the technician not the end user.

The end user controls the heating demand using a wireless room controller and can use this to set the

room temperature. If this includes a time clock then they can have different settings for different

times of the day or week with night and holiday set back.

The heat pump controls the domestic hot water temperature itself including for an optional sterilisa-

tion cycle using the 3 way valve and (if needed) the ‘Booster Heater’ which is the name Panasonic use

for the immersion heater.

There is an electric heater inside the monobloc unit. Panasonic refer to this as the ‘Backup Heater’.

The 3 way valve is a diverting, not a mixing valve. When unpowered it provides flow to the buffer

tank. When powered it cuts off flow to the buffer tank and diverts it to hot water.

A buffer tank is necessary in order to provide a minimum water volume and also thermal separation

for the system. It will protect the unit from short cycling, heat exchanger damage and low water flow

trips. Ideally a buffer tank should have an auto air vent on top.

Important—All piping

should be 28mm copper

as a minimum, larger if

plastic.

* Please note—the monobloc unit contains a strainer

so an external one is optional as is a flowsetter.

* A magnetic filter is mandatory for all installations.

Heating System

Strainer & Magnetic Filter *

Zone Valve

Flowsetter *

3 way valve

for dhw tank

Panasonic

Controller

Wireless Base Station

Wireless Room Control

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Warranty

Please check the following before commencing startup as they are important conditions of

Panasonics warranty.

•

A magnetic filter must be installed in the return pipe as close as possible to the unit. Do

not switch the system on without this.

•

A buffer tank or low loss header must be used to create hydraulic separation and ensure

a minimum primary water volume of either 30 litres (single fan unit) or 50 litres (twin

fan unit). If using a low loss header then a volumising tank is probably required.

•

The pipe diameter used must be no smaller than 28mm copper (larger if plastic)

•

If glycol (anti-freeze) is used then this should be food safe and pre mixed before intro-

duction and of the correct strength for the system. Most applications will require this.

•

The water quality should be tested against Panasonics requirements.

Part of the startup process involves checking the water flow rate. In order for the unit to op-

erate at all then an absolute minimum low rates must be observed aswell as the

recommended pipework sizing.

kW output of unit

Flow rate (L/min)

14.3

20.1

25.8

34.4

45.9

Primary Pipework sizing Guide

kW Output

Copper Pipe Size O/D (mm)*

5kW

7kW

9kW

12kW

16kW

*Please note that these sizes are for guidance only and may differ dependant on pipe run, pressure losses within the system and

numberof bends.

A full copy of Panasonics Warranty Terms and Conditions can be found at

https://www.aircon.panasonic.eu/GB_en/downloads/others/

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Power Supply

Monobloc units require two power supplies.

The first, Power Supply 1 is for the heat pump unit and the second Power Supply 2 is for the

electric heating, both for the Backup (internal) heater and the Booster (dhw tank immersion)

heater.

Single Phase Requirement’s

Model (single Phase)

Power Supply 1

(Compressor) Circuit

Breaker Size and

cable

Recommended RCD

Power Supply 2 (BackUp

Electric) Circuit Breaker

Size and cable

Recommended RCD

WH-MDC05J3E5

16A - 1.5mm²*

30mA, 2P, type A

16A-1.5mm²*

30mA, 2P, type AC

WH-MDC07J3E5

25A - 4mm²*

30mA, 2P, type A

16A-1.5mm²*

30mA, 2P, type AC

WH-MDC09J3E5

25A - 4mm²*

30mA, 2P, type A

16A-1.5mm²*

30mA, 2P, type AC

WH-MDC12H6E5

30A –4mm²*

30mA, 2P, type A

30A –4mm²*

30mA, 2P, type AC

WH-MDC12J6E5

30A –6mm²*

30mA, 2P, type A

30A –4mm²*

30mA, 2P, type AC

WH-MDC16H6E5

30A –4mm²*

30mA, 2P, type A

30A –4mm²*

30mA, 2P, type AC

WH-MDC16J6E5

30A - 6mm²*

30mA, 2P, type A

30A –4mm²*

30mA, 2P, type AC

WH-MXC09H3E5

30A –6mm²*

30mA, 2P, type A

30A –1.5mm²*

30mA, 2P, type AC

WH-MXC09J3E5

30A –6mm²*

30mA, 2P, type A

30A –1.5mm²*

30mA, 2P, type AC

WH-MXC12H6E5

30A –6mm²*

30mA, 2P, type A

30A –4mm²*

30mA, 2P, type AC

WH-MXC12J6E5

30A –6mm²*

30mA, 2P, type A

30A –4mm²*

30mA, 2P, type AC

*All Cable Sizes and Breaker Sizes should be checked by a NICEIE qualified Electrician

Three Phase Requirement’s

*All Cable Sizes and Breaker Sizes should be checked by a NICEIE qualified Electrician

Model (three Phase)

Power Supply 1

(Compressor)

CircuitBreaker

Size

Recommended RCD

Power Supply 2

(BackUpElectric) Circuit

Breaker Size

Recommended RCD

WH-MXC12H9E8

20A - 1.5mm²*

30mA, 4P, type A

20A-1.5mm²*

30mA, 4P, type AC

WH-MXC12J9E8

20A - 1.5mm²*

30mA, 4P, type A

20A-1.5mm²*

30mA, 4P, type AC

WH-MXC16H9E8

20A - 1.5mm²*

30mA, 4P, type A

20A-1.5mm²*

30mA, 4P, type AC

WH-MXC16J9E8

20A - 1.5mm²*

30mA, 4P, type A

20A-1.5mm²*

30mA, 4P, type AC

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CN6

OLP Booster Heater

Either link across or connect to immersion overload

Zone 1 Room Sensor

CN5

Monobloc Main Control PCB

Outdoor Air Sensor

Tank Hot Water Sensor

Tank Sensor

CN4

External Control 1

Remote Controller

CN3

Boiler Contact

Panasonic Controller

Extra Pump

2 Way Valve 3 Way Valve

C O N C O N

Booster Heater

Heat Cool N L

Earth

CN1

CN2

Immersion Heater 3KW—220V

Earth

Heating Control

Wireless Programmable Controller

Base Station

N PUMP

Heating

Circulation

Pump

Thermostat

Base

Station

COM

Open N E

Control Wiring

This shows a basic heating and domestic hot water system as shown on the first page.

Connections are made onto the main control PCB in the monobloc unit.

3 Port Diverting Valve

Motor Open for Tank Mode

Zone Valve

Please Note

•

If you use an immersion (Booster) Heater with the hot water cylinder then the two ter-

minals OLP Booster Heater should be shorted or connected to an overload NC contact

•

Be sure to run the Panasonic Controller cable separately to other cables

•

We recommend taking the immersion heater and the heating pump wiring through local

fused switches mounted next to each (Pump—5A and Heater 16A)

•

Ensure the thermostat in the immersion heater is set to maximum

The tank hot water sensor is a Panasonic specific part and not a generic item.

Please confirm all details with the Panasonic installation manuals.

All electrical wiring must be carried out by a competent electrician in accordance with local

and national regulations.

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Pre-Start Checks

Please check the following before commencing startup.

•

Power must be supplied to the monobloc unit for at least 8 hours before start up in or-

der to provide sufficient power to the compressor heater

•

Check all electrical wiring and connections

•

Make sure all auto air vents are open and the pressure relief valves are closed

•

Make sure the system is filled with the correct coolant fluid to around 2 Bar

•

Check the expansion vessel is large enough. The Panasonic unit contains an expansion

tank large enough for 150 litres for single fan and 200 litres for twin fan models. For lar-

ger water volumes or more than 7m height difference then an extra tank is required.

•

Check all fuses and circuit breakers.

Controller Setup on Start Up

Once you are in installer mode set the pump to run in Air Purge

In the Pump maximum speed menu you can set the pump to On, Off or Air Purge. Set

the Air Purge mode, open the 3 way valve manually and let the system run to get rid of

any air. When this is finished check the water flow is sufficient using the On mode with

the 3 way valve closed. Remember—2.9l/hr per KW is what you want.

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Installer Setup—System Setup

How to set up the unit for a typical installation from Installer Setup mode.

First, In the Installer Setup menu choose System Setup. Then scroll through each setting and

set the values as below.

Set this as NO

Set this as

Room Thermostat

External

Usually don’t

change this.

For low power set

at 3KW

Set this as YES

Set this as

EXTERNAL

Set this as NO

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Set this as NO

Set this as

GLYCOL only if

anti freeze is

used

Set this as

MANUAL

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Installer Setup—Operation Setup

After setting up System Setup scroll back to the Installer Setup menu and choose Operation

Setup which will give you the options to set up HEAT and TANK modes. Set each up as below

Set this as

Compensation

Curve with set-

tings as below

in red

For test purposes set this at 55C—45C—minus 5C and 15C respectively

When testing is finished we recommend changing this to

For underfloor heating 35C—30C —minus 5C and 15C respectively

For modern radiators 45C—35C —minus 5C and 15C respectively

For old fashioned radiators 52C—40C —minus 5C and 15C respectively

Set this as 35C

during testing

then drop to

20C after test

Set this at 5C

Set this at

Minus 5C

Set this at

1 hour

Set this at

40 minutes

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Setting a sterilisation cycle requires an immersion heater controlled by the Panasonic unit, uses

energy and carries the risk of scalds. Discuss this with the end user.

Sterilisation is to prevent the growth of legionella.

Legionella grows at between 20C and 45C but dies above 45C

Scald time is minutes for water at 50C but seconds at 60C

To optimise protection against scalds then choose NO sterilisation cycle, set the tank temperature to 50C and

lower the Tank Reheat Temperature (* above) to minus 5C.

To optimise legionella protection then Choose a weekly sterilisation cycle. Discuss the day and time with the

customer. Choose 60C and 10 minutes. You can set the tank temperature at 45-48C with sterilisation cycle

set to on. Check the immersion heater physically and ensure the thermostat on it is set to maximum.

Installer Setup—Service Setup

After setting up Operation Setup scroll back to the Installer Setup menu and choose Service

Setup which will give you the options of setting the Pump Maximum Speed, Pump Down Op-

eration, Dry Concrete Function and Service Contact. Use Pump Maximum Speed to measure

the water flow rate and check it is sufficient (2.9 l/min per KW), note the flow rate down and

then set your contact details in Service Contact

Function Setup Settings

Enter your

details

All that is required now is to go back to the Main Menu choose the Function Setup and check

the following settings

Room Heater—Set to On

Tank Heater—Set to On

Sterilisation—Set to either ON or OFF according to the notes above in the previous section

You are now ready to Test the System

Set this as

minus 8C *

See notes

Below in red

Discuss with

end user

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