Dimplex A12M User manual

8/60472/0

Issue 1

A Class Air Source Heat Pump

A12M / A16M: Installation Manual

Overall view

Figure 1 (a): Outer dimensions of heat pump, (b) position of heat pump registration plate and details

(c)Internal components of heat pump

(a)

(b)

(c)

iii

Contents

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

2Scope of delivery ................................................................................... 1

3Pre-Installation advice .......................................................................... 5

3.1 Warnings .......................................................................................... 5

3.2 Intended use ..................................................................................... 6

3.3 Legal ................................................................................................ 6

3.4 Heat pump sizing ............................................................................... 6

3.5 Site selection..................................................................................... 6

3.5.1 Location of heat pump ................................................................... 6

3.5.2 Heat pump placement and fixing..................................................... 7

3.6 Plumbing –Preparation........................................................................ 8

3.6.1 Buffer tank................................................................................... 9

3.7 Electrical connections - Preparation ...................................................... 9

4Installation .......................................................................................... 10

4.1 Handling and transport ..................................................................... 10

4.2 Plumbing......................................................................................... 10

4.3 Electrical connections ....................................................................... 11

4.4 Opening the heat pump for electrical connections................................. 15

4.4.1 Heat pump electrical connection.................................................... 16

5Set to work .......................................................................................... 17

5.1 Location of indoor components .......................................................... 17

5.2 Set to work ..................................................................................... 17

5.3 Opening the UI ................................................................................ 17

5.4 Using the User Interface ................................................................... 18

6Pre-commissioning .............................................................................. 18

6.1.1 General/Schematic ...................................................................... 19

6.1.2 Message log ............................................................................... 19

6.1.3 Output Tests .............................................................................. 19

6.1.4 Defrost ...................................................................................... 19

6.1.5 Operating data ........................................................................... 19

6.1.6 History ...................................................................................... 19

7Commissioning .................................................................................... 20

7.1.1 Waterside check.......................................................................... 20

7.1.2 Temperature check ..................................................................... 21

7.1.3 Electrical connections (SH) ........................................................... 21

7.1.4 Water flow check ........................................................................ 21

7.1.5 DHW setup................................................................................. 22

7.1.6 Electrical connections (DHW) ........................................................ 22

7.1.7 DHW Test................................................................................... 22

7.1.8 Disinfection ................................................................................ 23

7.1.9 Heating curves............................................................................ 23

8System health checks .......................................................................... 24

9Troubleshooting, FAQ .......................................................................... 25

9.1 Table of error codes and descriptions.................................................. 25

10 Technical Specifications ................................................................... 24

Appendices:

ARefrigeration cycle................................................................................A

BSchematic zone diagrams......................................................................B

Schematic 1: 10200110 - Space Heating Only .......................................... B

Schematic 2: 10220290 - Zone Space Heating & DHW............................... C

Schematic 3: 10300110 - Bivalent Space Heating .....................................D

Schematic 4: 10310290 - Bivalent Zone Space Heating & DHW .................. E

CWiring centre electrical connections.........................................................F

DInstaller controller cable connections...................................................... G

EInstaller menu flow chart.......................................................................H

1Introduction

Thank you for choosing a Dimplex Heat

Pump. The Dimplex A class heat pump

combines outstanding performance to

maximise year-round efficiency no

matter what the weather conditions. It

can also deliver high output and high

temperatures even at outside air

temperatures of -7. The sophisticated

controller makes the system easy to

use and there are many more

technological innovations including a

scroll compressor that uses enhanced

vapour injection.

2Scope of delivery

Please ensure you check the scope of

delivery before signing any delivery

documentation. Claims for missing or

damaged parts after signing for the

delivery will not be accepted.

There are 3 options to select from when

installing a Dimplex Heat Pump:

Pack 1 - Space heating and Dimplex

A Class Cylinder

To install the heat pump and

Dimplex A class cylinder together

you must purchase Pack 1 which

contains necessary components

shown in the tables below. A

separate wiring centre is not

required as the wiring centre is built

into the cylinder. The ACCHYPK

Hydraulics pack contains the all of

the necessary hydraulic

components.

Pack 2 - Space heating and Dimplex

Standard Heat Pump Cylinder

To install the heat pump for space

heating and domestic hot water but

not using an A class cylinder you

must purchase Pack 2 which

contains the necessary components

shown in the tables below. A

separate wiring centre is required to

wire the circulation pumps and zone

controls since this is not supplied on

the cylinder. The ACCHYPK

Hydraulics pack contains the all of

the necessary hydraulic

components.

Pack 3 –Space heating only

To install the heat pump for space

heating only, you must purchase

Pack 3 which contains the necessary

components shown in the tables

below. A separate wiring centre is

required to wire the circulation

pumps and zone controls. The

ACSSHYPK Hydraulics pack contains

the all of the necessary hydraulic

components.

PACK 1:

SPACE HEATING AND DIMPLEX A CLASS CYLINDER

Heat pump

A12M / A16M

Hydraulics Kit A which includes:

ACCHYPK

User interface (UI)

049179

Pump - UPM GEO 25-85 180 (70mm cable)

049148

2 x Pump Valve Gate 1"1/2 –28mm

2 x Washer 30.1x21x2mm

By pass valve (22mm)

Spring loaded

050557

3 port diameter valve

050564

Isolation valves -

(1) Flow

(2) Return with strainer

Flow 062801

Return

062815CR

4 x Blanking plugs for lifting holes

624105

Installation and User manuals

Dimplex DHW Cylinder Kit

Cylinder

Air vent

Drain

Safety group DHW side - expansion vessel,

hose and bracket, inlet group, tundish

3 x Copper pipes –Pump to buffer/cylinder

Pipe connections to coil, pipe, drain and vent

Pipe connections to pump

PACK 2:

SPACE HEATING AND DIMPLEX STANDARD HEAT PUMP

CYLINDER

Heat pump

A12M / A16M

Hydraulics Pack A which includes:

ACCHYPK

User interface (UI)

049179

Pump - UPM GEO 25-85 180 (70mm cable)

049148

2 x Pump Valve Gate 1"1/2 –28mm

2 x Washer 30.1x21x2mm

Altecnic ERES straight by pass valve

(22mm 22mm) Spring loaded

050557

3 port diameter valve

050564

Isolation valves -

(1) Flow

(2) Return with strainer

Flow 062801

Return

062815CR

4 x Blanking plugs for lifting holes

624105

Installation and User manuals

Wiring centre Kit

Wiring centre module

049162

1 x Temperature probe (NTC10) for DHW

PACK 3:

SPACE HEATING ONLY

Heat pump

A12M / A16M

Hydraulics Pack B which includes:

ACSSHYPK

User interface (UI)

049179

Pump - UPM GEO 25-85 180 (70mm cable)

049148

2 x Pump Valve Gate 1"1/2 –28mm

2 x Washer 30.1x21x2mm

Altecnic ERES straight by pass valve

(22mm 22mm) Spring loaded

050557

Isolation valves -

(1) Flow

(2) Return with strainer

Flow 062801

Return

062815CR

4 x Blanking plugs for lifting holes

624105

Installation and User manuals

Wiring centre Kit

Wiring centre module

049162

1 x Temperature probe (NTC10) for DHW

3Pre-Installation advice

3.1 Warnings

When transporting the heat pump,

ensure that it is not tilted more than

45° (in any direction), for any

prolonged period of time.

Do not attempt to lift the heat pump

manually. It weighs 130kg and

should only be lifted using the

appropriate lifting devices.

Installation and any service work on

the heat pump may only be

performed by authorised and

qualified installer and after-sales

service technicians.

This device is suitable for mains

connection only: 230V, 1P&N, 50Hz,

and is not suitable for operation

with any electrical generator and

any attempt to do so will void

warranty.

This device shall be installed in

accordance with national wiring

regulations. The digital inputs are

volt free, if any voltage, such as a

switch live 230V is connected

irreparable damage will be caused

to the wiring centre. The local wiring

regulations should always be

followed paying particular attention

to mixing of low voltage and extra

low voltage cabling.

Before removing the cover of the

heat pump, cylinder or wiring

centre, ensure that all electrical

circuits are isolated.

Means for disconnection from the

supply mains must be incorporated

in the fixed wiring in accordance

with the national wiring regulations.

The heat pump contains refrigerant

at high pressure. Safety measures

are in place to avoid system

pressure build up:

Stage 1: Pressure transducer

stops compressor

Stage 2: Pressure switch switches

heat pump off.

The installation of a residual current

device (RCD) having a rated

residual operating current not

exceeding 30mA is advisable.

Additional heating may be required

if heat pump is intended to dry out

a new or renovated building, as the

initial heat load will be higher than

the calculated load.

If the heat pump can be

disconnected from power supply for

prolonged periods of time or where

power supplies are susceptible to

failure, antifreeze must be added to

the system.

Never use cleaning agents

containing sand, soda, acid or

chloride as these can damage the

surfaces/components.

We recommend the installation of a

suitable filtration protection system

and a corrosion additive for the

heating system to prevent the

formation of deposits (e.g. oxide

and solids) in the condenser of the

heat pump. The return isolation

valve provided in the hydraulics

pack has a built in strainer for this

purpose.

Products not installed with the

Dimplex hydraulics packs will not be

supported by Dimplex. This includes

but is not limited to thermal stores.

During the commissioning of the

domestic hot water cylinder, ensure

that the cylinder is full and no water

is drawn from the cylinder as this

will adversely affect the heat pumps

operation.

This appliance can be used by

children aged from 8 years and

above and persons with reduced

physical, sensory or mental

capabilities or lack of experience

and knowledge if they have been

given supervision or instruction

concerning use of the appliance in a

safe way and understand the

hazards involved. Children shall not

play with the appliance. Cleaning

and user maintenance shall not be

made by children without

supervision.

3.2 Intended use

This device is only intended for

domestic use, as specified by the

manufacturer. Any other use beyond

that intended by the manufacturer is

prohibited. This requires the user to

abide by the manufacturers product

information. Please refrain from

tampering with or altering the device.

3.3 Legal

The construction and design of the heat

pump complies with all relevant EU

directives (see CE declaration of

conformity).

When connecting the heat pump to the

power supply, the relevant EN and IEC

standards are to be adhered to. Any

further connection requirements

stipulated by the network operation

must also be observed.

When connecting to the heating system

all applicable regulations must also be

adhered to.

3.4 Heat pump sizing

Ensure that the correct size heat

pump has been selected in

accordance with the latest version of

MIS3005 (UK only) and with the

Dimplex Heat Pump Planning

Manual.

If a non A-Class heat pump cylinder

is being used, ensure that it has

been accurately sized with the

appropriate coil surface area of the

cylinder to match the heat pump’s

output, flow rate requirements and

that all necessary hydraulic

connections have been considered in

connecting it to the heat pump

system.

Ensure that suitable heat emitters

have been sized in accordance with

the Heat Emitter Guide (UK only)

and selected ensuring a low flow

temperature design. To maximise

system efficiency it is important to

design the system with the lowest

flow temperature possible.

3.5 Site selection

3.5.1 Location of heat pump

The heat pump must be installed

outdoors with adequate clearances

for ventilation and maintenance as

shown in figure 2. It is

recommended that the heat pump is

installed along the property wall, as

shown below.

There must be a minimum distance

of 1000mm in front of the fan to

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