Daikin EDLQ036BA6VJU1, EDLQ048BA6VJU1, EDLQ054BA6VJU1, EBLQ036BA6VJU1, EBLQ048BA6VJU1 Installation Manual

...

INSTALLATION MANUAL

Unit for air to water heat pump system

EDLQ036BA6VJU1

Installation manual

Unit for air to water heat pump system

English

EDLQ048BA6VJU1 EDLQ054BA6VJU1

Manuel d'installation

Unité pour système de pompe à chaleur air à eau

Français

EBLQ036BA6VJU1 EBLQ048BA6VJU1 EBLQ054BA6VJU1

Manual de instalación

Unidad para bomba de calor de aire-agua

Español

E E E

L1< L2

H B1

L2< L1

L1≤ H

L1< L2

H< L1

L2≤ H

L2< L1

L1≤ H

0 <L1 ≤ 1/ 2H

0 <L2 ≤ 1/ 2H

1/2H < L2 ≤H

H<L2 L2≤ H

L1< L2

H B1

L2< L1

L1≤ H

L1< L2

H< L1

L1≤ H

0 <L2 ≤ 1/ 2H

1/2H < L2 ≤H

0 <L1 ≤ 1/ 2H

1/2H < L1 ≤H

L2< L1

L2≤ H

0 <L2 ≤ 1/ 2H

1/2H < L2 ≤H

1A (inch)

H< L2

L2≤ H

L1< L2

H B1

L2< L1

L1≤ H

L1< L2

H< L1

L2≤ H

L2< L1

L1≤ H

0 <L1 ≤ 1/ 2H

0 <L2 ≤ 1/ 2H

1/2H < L2 ≤H

H< L2 L2≤ H

L1< L2

H B1

L2< L1

L1≤ H

L1< L2

H< L1

L1≤ H

0 <L2 ≤ 1/ 2H

1/2H < L2 ≤H

0 <L1 ≤ 1/ 2H

1/2H < L1 ≤H

L2< L1

L2≤ H

0 <L2 ≤ 1/ 2H

1/2H < L2 ≤H

1B (mm)

H< L2 L2 ≤ H

EDLQ036BA6VJU1 EDLQ048BA6VJU1 EDLQ054BA6VJU1

EBLQ036BA6VJU1 EBLQ048BA6VJU1 EBLQ054BA6VJU1

Unit for air to water heat pump system

Installation manual

CONTENTS

Page

READ THESE INSTRUCTIONS CAREFULLY BEFORE

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

INSTALLATION. KEEP THIS MANUAL IN A HANDY

General information ................................................................................... 1

PLACE FOR FUTURE REFERENCE.

Scope of this manual ................................................................................. 2

Model identiﬁcation .................................................................................... 2

Accessories ....................................................................................... 2

Accessories supplied with the unit ............................................................. 2

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

Safety considerations ........................................................................ 3

TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE

Before installation .............................................................................. 4

SPECIFICALLY DESIGNED FOR USE WITH THE

Important information regarding the refrigerant used ........................ 4

Selecting installation site ................................................................... 4

Selecting a location in cold climates .......................................................... 5

Precautions on installation................................................................. 5

EQUIPMENT AND HAVE THEM INSTALLED BY A

PROFESSIONAL.

ALL ACTIVITIES DESCRIBED IN THIS MANUAL SHALL

BE CARRIED OUT BY A LICENSED TECHNICIAN.

Installation method for prevention of falling over ........................................ 5

BE SURE TO WEAR ADEQUATE PERSONEL PROTEC-

Installation servicing space ........................................................................ 6

TION EQUIPMENT (PROTECTION GLOVES, SAFETY

Typical application examples ............................................................. 7

GLASSES, ...) WHEN PERFORMING INSTALLATION,

Application 1 .............................................................................................. 7

MAINTENANCE OR SERVICE TO THE UNIT.

Application 2 .............................................................................................. 7

Application 3 .............................................................................................. 8

Application 4 .............................................................................................. 8

Application 5 .............................................................................................. 9

IF UNSURE OF INSTALLATION PROCEDURES OR USE,

ALWAYS CONTACT YOUR DAIKIN DEALER FOR

ADVICE AND INFORMATION.

Application 6 ............................................................................................ 11

THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED

Overview of the unit......................................................................... 11

FOR OUTDOOR INSTALLATION.

Opening the unit....................................................................................... 11

Main components..................................................................................... 12

Water pipework ........................................................................................ 13

The English text is the original instruction. Other languages are translations of the original instructions.

Charging water......................................................................................... 16

Piping insulation....................................................................................... 16

Field wiring............................................................................................... 17

Installation of the digital controller............................................................ 22

INTRODUCTION

Start-up and conﬁguration ............................................................... 23

DIP switch settings overview.................................................................... 23

Room thermostat installation conﬁguration.............................................. 23

General information

Pump operation conﬁguration .................................................................. 23

Domestic hot water tank installation conﬁguration ................................... 24

These units are used for both heating and cooling applications. The

Initial start-up at low outdoor ambient temperatures................................ 24

units can be combined with Daikin fan coil units, ﬂoor heating

Pre-operation checks ............................................................................... 24

applications, low temperature radiators, domestic hot water tank

Powering up the unit ................................................................................ 25

(option) and solar kit (option).

Setting the pump speed ........................................................................... 25

Field settings............................................................................................ 25

A remote controller is standard supplied with the unit to control your

Field settings table ................................................................................... 35

installation.

Test run and ﬁnal check................................................................... 37

Heating/cooling units and heating only units

Automatic test run .................................................................................... 37

Test run operation (manual) ..................................................................... 37

The monoblock unit range consists of two main versions: a

Maintenance and service ......................................................................... 37

heating/cooling (EB) version and a heating only (ED) version.

Maintenance and service ................................................................ 37

Troubleshooting ............................................................................... 38

General guidelines ................................................................................... 38

General symptoms................................................................................... 38

Error codes .............................................................................................. 39

Technical speciﬁcations ................................................................... 40

General .................................................................................................... 40

Electrical speciﬁcations............................................................................ 40

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Installation manual

Unit for air to water heat pump system

4PW56182-1

A B 1

2 3 4

■

Both versions are delivered with an integrated backup heater for

Operation range

additional heating capacity during cold outdoor temperatures. The backup heater also serves as a backup in case of malfunctioning of

Heating mode Cooling mode

the unit and for freeze protection of the outside water piping during

A A

winter time. The backup heater factory set capacity is 6 kW, however, depending on the installation, the installer can limit the backup heater

DB DB

35 95

46 115

capacity to 3 kW. The backup heater capacity decision is a mode based on the equilibrium temperature, see scheme below.

0 32

10 50

–20

–4

59 7277 15 2225

104

( )

131

72 22

Outdoor temperature Leaving water temperature

No heat pump operation, back up heater only

Heat pump capacity

(*) The models have a freeze prevention function using the pump and

back up heater to keep the water system safe from freezing in all

Required heating capacity (site dependent)

conditions. In case accidental or intentional power shutdown is likely to happen

Additional heating capacity provided by the backup heater

we recommend to use glycol. (Refer to Caution: "Use of glycol" on

Equilibrium temperature (can be set through the user interface,

page 16) refer to "Field settings" on page 25) Ambient (outdoor) temperature

Connection to a beneﬁt kWh rate power supply

Heating capacity

This equipment allows for connection to beneﬁt kWh rate power

supply delivery systems. Full control of the unit will remain possible Domestic hot water tank EKHW* (option) An optional EKHW* domestic hot water tank with integrated

3 kW electrical booster heater can be connected to the unit. The

only in case the beneﬁt kWh rate power supply is of the type that

power supply is not interrupted. Refer to "Connection to a beneﬁt

kWh rate power supply" on page 21 for more details. domestic hot water tank is available in two sizes: 50 and

80 gallons (200 and 300 litre).

Scope of this manual

Room thermostat (option) An optional room thermostat EKRTWA can be connected to the

unit.

This installation manual describes the procedures for installing and

connecting all EDL and EBL outdoor unit models. Solar kit for domestic hot water tank (option)

An optional solar kit EKSOLHW can be connected to the unit. Model identiﬁcation Contact your dealer for more allowed solar kits.

■

Remote alarm kit (option)

EDL Q 036 BA 6 VJU

Digital I/O PCB kit (option)

Power supply:

An optional EKRP1HB digital I/O PCB can be connected to the

2~, 208 V/230 V

indoor unit and allows:

Backup heater capacity (kW)

■ remote alarm output

Model changes

■ heating/cooling ON/OFF output

■ bivalent operation (permission signal for the auxiliary boiler)

Indication of heating capacity (kBtu/h)(a)

Refrigerant R410A

EDL = Monoblock outdoor heating only

Refer to the operation manual of the indoor unit and to the

EBL = Monoblock outdoor heat pump

installation manual of the digital I/O PCB for more information.

(a) For exact values, refer to "Technical speciﬁcations" on page 40.

Refer to the wiring diagram or connection diagram for connecting this PCB to the unit.

To obtain more information concerning these option kits, please refer

ACCESSORIES

to dedicated installation manuals of the kits.

Accessories supplied with the unit

Installation manual Operation manual

Wiring diagram sticker (inside unit cover doors 1 and 2) User interface kit

(digital remote controller, 4 ﬁxing screws and 2 plugs)

Installation manual

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Unit for air to water heat pump system

4PW56182-1

■

■ ■ ■ ■ ■

■ ■ ■

■ ■ ■ ■ ■

■

or ﬁre.

■ ■ ■

■

AFETY

CONSIDERATIONS

Make certain that all electrical work is carried out by qualiﬁed personnel according to the local laws and regulations and this

The precautions listed here are divided into the following two types.

installation manual, using a separate circuit.

Both cover very important topics, so be sure to follow them carefully. Insufﬁcient capacity of the power supply circuit or improper

electrical construction may lead to electric shocks or ﬁre.

Meanings of DANGER, WARNING, CAUTION and NOTE symbols.

Be sure to install a ground fault circuit interrupter according to

DANGER

local laws and regulations.

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Failure to install a ground fault circuit interrupter may cause electric shocks and ﬁre.

WARNING

Make sure that all wiring is secure, using the speciﬁed wires and

ensuring that external forces do not act on the terminal Indicates a potentially hazardous situation which, if not connections or wires. avoided, could result in death or serious injury.

Incomplete connection or ﬁxing may cause a ﬁre. CAUTION When wiring the power supply, form the wires so that the

Indicates a potentially hazardous situation which, if not

frontside panel can be securely fastened. avoided, may result in minor or moderate injury. It may also

If the frontside panel is not in place, overheat of the terminals, be used to alert against unsafe practices.

electric shocks or a ﬁre may be caused.

NOTE

■

After completing the installation work, check to make sure that

there is no leakage of refrigerant gas. Indicates situations that may result in equipment or

property-damage accidents only.

Never directly touch any accidental leaking refrigerant. This

could result in severe wounds caused by frostbite.

Danger

Do not touch the refrigerant pipes during and immediately after

Before touching electric terminal parts, turn off power switch. When service panels are removed, live parts can be easily

operation as the refrigerant pipes may be hot or cold, depending

on the condition of the refrigerant ﬂowing through the refrigerant

piping, compressor and other refrigerant cycle parts. Your hands

touched by accident.

may suffer burns or frostbite if you touch the refrigerant pipes. To

Never leave the unit unattended during installation or servicing

avoid injury, give the pipes time to return to normal temperature

when the service panel is removed.

or, if you must touch them, be sure to wear proper gloves.

Do not touch water pipes during and immediately after operation

Do not touch the internal parts (pump, backup heater, etc.)

as the pipes may be hot. Your hand may suffer burns. To avoid

during and immediately after operation.

injury, give the piping time to return to normal temperature or be

Your hands may suffer burns if you touch the internal parts. To

sure to wear proper gloves.

avoid injury, give the internal parts time to return to normal

Do not touch any switch with wet ﬁngers. Touching a switch with

temperature or, if you must touch them, be sure to wear proper

wet ﬁngers can cause electrical shock.

gloves.

Before touching electrical parts, turn off all applicable power supply.

Caution

■ For use of units in applications with temperature alarm settings it

Warning

is advised to foresee a delay of 10 minutes for signalling the

Tear apart and throw away plastic packaging bags so that children will not play with them.

Children playing with plastic bags face danger of death by suffocation.

alarm in case the alarm temperature is exceeded. The unit may

stop for several minutes during normal operation for "defrosting

of the unit" or when in "thermostat-stop" operation.

Ground the unit.

Safely dispose of packing materials. Packing materials, such as nails and other metal or wooden parts, may cause stabs or other

Grounding resistance should be according to local laws and

regulations

injuries.

Do not connect the ground wire to gas or water pipes,

Ask your dealer or qualiﬁed personnel to carry out installation work.

lightning conductor or telephone ground wire.

Do not install the machine by yourself.

Incomplete grounding may cause electric shocks.

Improper installation may result in water leakage, electric shocks ■ Gas pipe. or ﬁre. Ignition or explosion may occur if the gas leaks.

Perform installation work in accordance with this installation

■ Water pipe.

manual.

Hard vinyl tubes are not effective grounds.

Improper installation may lead to water leakage, electric shocks

■ Lightning conductor or telephone ground wire. Electric potential may rise abnormally if struck by a lightning

■

Be sure to use only the speciﬁed accessories and parts for

bolt.

installation work.

Install the power wire at least 3 feet (1 meter) away from

Failure to use the speciﬁed parts may result in water leakage,

televisions or radios to prevent image interference or noise.

electric shocks, ﬁre, or the unit falling.

(Depending on the radio waves, a distance of 3 feet (1 meter)

Install the unit on a foundation that can withstand its weight.

may not be sufﬁcient to eliminate the noise.)

Insufﬁcient strength may result in the fall of equipment and

Do not rinse the unit. This may cause electric shocks or ﬁre.

causing injury.

Do not install the unit in places such as the following:

Carry out the speciﬁed installation work in consideration of strong winds, hurricanes, or earthquakes.

■ Where there is mist of mineral oil, oil spray or vapour.

Plastic parts may deteriorate, and cause them to fall out or Improper installation work may result in accidents due to fall of water to leak. equipment.

■ Where corrosive gas, such as sulphurous acid gas, is produced. Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Installation manual

Unit for air to water heat pump system

4PW56182-1

■

unit.

■

(1)

■ Where there is machinery which emits electromagnetic waves.

ELEC TI NG

INSTALLATION SITE

Electromagnetic waves may disturb the control system, and cause malfunction of the equipment. Make sure to provide for adequate measures in order

■ Where ﬂammable gases may leak, where carbon ﬁbre or ignitable dust is suspended in the air or where volatile

to prevent that the outdoor unit be used as a shelter by small animals.

ﬂammables, such as thinner or gasoline, are handled.

Small animals making contact with electrical parts can

Such gases may cause a ﬁre.

cause malfunctions, smoke or ﬁre. Please instruct the

■ Where the air contains high levels of salt such as that near

customer to keep the area around the unit clean.

the ocean.

Select an installation site where the following conditions are

■ Where voltage ﬂuctuates a lot, such as that in factories. satisﬁed and that meets with your customer's approval.

■ In vehicles or vessels.

- Places which are well-ventilated.

■ Where acidic or alkaline vapour is present.

- Places where the unit does not bother next-door neighbours.

- Safe places which can withstand the unit's weight and vibration and where the unit can be installed level.

EFORE

INSTALLATION

- Places where there is no possibility of ﬂammable gas or

product leak.

- The equipment is not intended for use in a potentially

Installation explosive atmosphere.

Be sure to conﬁrm the model name and the serial no. of the

- Places where servicing space can be well ensured.

outer (front) plates when attaching/detaching the plates to avoid

- Places where the units' piping and wiring lengths come within

mistakes.

the allowable ranges.

When closing the service panels, take care that the tightening torque does not exceed 3.03 lbs·ft (4.1 N·m).

- Places where water leaking from the unit cannot cause

damage to the location (e.g. in case of a blocked drain pipe).

- Places where the rain can be avoided as much as possible.

Handling - Do not install the unit in places often used as workplace.

Due to relatively large dimensions and high weight, the handling of the unit is only to be done by means of

lifting tools with slings. These slings can be ﬁtted into specially for this

In case of construction works (e.g. grinding works) where a lot of dust is created, the unit must be covered.

- Do not place any objects or equipment on top of the unit (top

plate)

- Do not climb, sit or stand on top of the unit.

purpose foreseen sleeves at the

- Be sure that sufﬁcient precautions are taken, in accordance

base frame.

with relevant local laws and regulations, in case of refrigerant

leakage.

To avoid injury, do not touch the air inlet or aluminium ﬁns of the

When installing the unit in a place exposed to strong wind, pay special attention to the following.

Strong winds of 16 ft/sec (5 m/sec) or more blowing against the

Do not use the grips in the fan grills to avoid

damage.

unit's air outlet causes short circuit (suction of discharge air), and this may have the following consequences:

- Deterioration of the operational capacity.

Unit is top heavy! Prevent the unit from falling due to inclination during

handling. Centre of gravity is indicated on the unit.

- Frequent frost acceleration in heating operation.

- Disruption of operation due to rise of high pressure.

- When a strong wind blows continuously on the face of the

unit, the fan can start rotating very fast until it breaks.

Refer to the ﬁgures for installation of this unit in a place where the wind direction can be foreseen.

IMPORTANT INFORMATION REGARDING THE

REFRIGERANT USED

Turn the air outlet side toward the building's wall, fence or screen.

This product contains ﬂuorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere.

Refrigerant type: R410A GWP

(1)

value: 1975

GWP = global warming potential

The refrigerant quantity is indicated on the unit name plate

Make sure there is enough room to do the installation

Installation manual

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Unit for air to water heat pump system

4PW56182-1

■ ■ ■

■

NOTE

■ ■ ■

■

1 2 A

Set the outlet side at a right angle to the direction of the wind.

RECAUTIONS

ON INSTALLATION

Check the strength and level of the installation ground so that

Strong wind

the unit will not cause any operating vibration or noise after installation.

In accordance with the foundation drawing in the ﬁgure, ﬁx the unit securely by means of the foundation bolts. (Prepare four

sets of 1/2 inch (M12) foundation bolts, nuts and washers each which are available on the market.)

Blown air

Strong wind

It is best to screw in the foundation bolts until their length are

0.8 inch (20 mm) from the foundation surface.

Prepare a water drainage channel around the foundation, to drain waste water from around the unit.

4 If the water drainage of the unit is not easy, please build up the

unit on a foundation of concrete blocks, etc. (the height of the foundation should be maximum 6 inch (150 mm)).

9.44 9.44

5 If you install the unit on a frame, please install a waterproof plate

within 6 inch (150 mm) of the underside of the unit in order to

(240) 37.60 (955)

56.50 (1435)

(240)

prevent the invasion of water from the lower direction.

Discharge side

When installing the unit in a place frequently exposed to snow,

Bottom view inch (mm)

pay special attention to elevate the foundation as high as

Drain hole

possible. If you install the unit on a building frame,

please install a waterproof plate (ﬁeld supply) (within 6 inch (150 mm) of the underside of the unit) in order to avoid the drainwater dripping. (See ﬁgure).

NOTE

If drain holes of the unit are covered by a mounting base or by ﬂoor surface, raise the unit in order to provide a free

space of more than 4 inch

Selecting a location in cold climates

(100 mm) under the unit.

Refer to "Handling" on page 4.

When operating the unit in a low outdoor ambient

Installation method for prevention of falling over

temperature, be sure to follow the instructions described below.

If it is necessary to prevent the unit from falling over, install as shown

To prevent exposure to wind, install the unit with its suction side facing the wall.

Never install the unit at a site where the suction side may be exposed directly to wind.

in the ﬁgure.

■ prepare all 4 wires as indicated in the drawing

■ unscrew the top plate at the 4 locations indicated A and B

■ put the screws through the nooses and screw them back tight

To prevent exposure to wind, install a bafﬂe plate on the air discharge side of the unit.

In heavy snowfall areas it is very important to select an installation site where the snow will not affect the unit. If lateral snowfall is possible, make sure that the heat exchanger coil is not affected by the snow (if necessary construct a lateral canopy).

Construct a large canopy. Construct a pedestal.

Install the unit high enough off the ground to prevent burying in snow.

Location of the 2 ﬁxation holes on the front side of the unit Location of the 2 ﬁxation holes on the rear side of the unit

Wires: ﬁeld supply

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Installation manual

Unit for air to water heat pump system

4PW56182-1

≥4i

(≥1 ≥4i

(≥1

✓

Installation servicing space

In case of installing one unit per row. The numerical ﬁgures used in the ﬁgures represent the dimensions in mm.

(Refer to "Precautions on installation" on page 5)

Precaution (A) In case of non-stacked installation ﬁgure 1A and ﬁgure 1B

≥4 inch (≥100 mm)

Suction side obstacle

Obstacle is present

≥80 inch (≥2000 mm)

≥8 inch (≥200 mm)

Discharge side obstacle

In these cases, close the bottom of the installation

≥40 inch (≥1000 mm)

Left side obstacle

frame to prevent the discharged air from being bypassed

In case of installing multiple units (2 units or more) in lateral

connection per row.

Right side obstacle

In these cases, only 2 units can be installed.

Top side obstacle

This situation is not allowed

NOTE

Minimum distance B1 in ﬁgure 1A and ﬁgure 1B

mentions the space required for correct operation of the unit. Required space for servicing though is 12 inch (300 mm).

≥120 inch (≥3000 mm)

(B) In case of stacked installation

≥24 inch (≥600 mm)

≥60 inch (≥1500 mm)

In case obstacles exist in front of the outlet side.

Relation of dimensions of H, A and L are shown in the table below.

L A

L≤H

0<L≤1/2H

1/2H<L

10 (250) 12 (300)

≥40 inch (≥1000 mm)

In case obstacles exist in front of the air inlet.

≥12 inch (≥300 mm)

Do not stack more than one unit. About 4 inch (100 mm) is required as the dimension for laying the

upper unit's drain pipe. Get the portion A sealed so that air from the outlet does not bypass.

H<L Installation not allowed

Installation manual

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Unit for air to water heat pump system

4PW56182-1

only.

1 2 1

3 4 T

2 3 5

I 4 5

7 8 I

YPICAL

APPLICATION EXAMPLES

Application 2

The application examples given below are for illustration purposes

Space heating only application without room thermostat connected to

the unit. The temperature in each room is controlled by a valve on

each water circuit. Domestic hot water is provided through the

Application 1

domestic hot water tank which is connected to the unit.

Space heating only application with a room thermostat connected to the unit.

1 2 3 4

T1 T2 T3

1 2 3 4

FHL1

FHL2

FHL3

FHL1

FHL2

FHL3

Unit FHL1..3 Floor heating loop Heat exchanger

(ﬁeld supply)

Unit Heat exchanger coil Pump Shut-off valve

Room thermostat (optional)

Heat exchanger

Pump

10 Domestic hot water tank

(optional)

Collector (ﬁeld supply) User interface

Shut-off valve FHL1..3 Floor heating loop

Unit operation and space heating

Collector (ﬁeld supply)

(ﬁeld supply)

When a room thermostat (T) is connected to the unit and when there

Motorised 3-way valve

(optional)

T1..3 Individual room

thermostat (ﬁeld supply)

is a heating request from the room thermostat, the unit will start operating to achieve the target leaving water temperature as set on

By-pass valve

(ﬁeld supply)

M1..3 Individual motorised

valve to control loop

the user interface.

Booster heater

FHL1 (ﬁeld supply)

When the room temperature is above the thermostat set point, the

User interface

unit will stop operating.

Pump operation

Make sure to connect the thermostat wires to the correct

With no thermostat connected to the unit (1), the pump (3) can be

terminals (see "Connection of the thermostat cable" on

conﬁgured to operate either as long as the unit is on, or until the

page 20) and to conﬁgure the DIP switch toggle switches

required water temperature is reached.

correctly (see "Room thermostat installation conﬁguration" on page 23).

NOTE

Details on pump conﬁguration can be found under "Pump operation conﬁguration" on page 23.

Space heating

The unit (1) will operate to achieve the target leaving water temperature as set on the user interface.

When circulation in each space heating loop (FHL1..3) is controlled by remotely controlled valves (M1..3), it is important to provide a by-pass valve (7) to avoid the ﬂow switch safety device from being activated.

The by-pass valve should be selected as such that at all time the minimum water ﬂow as mentioned under "Water

pipework" on page 13 is guaranteed.

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Installation manual

Unit for air to water heat pump system

4PW56182-1

page 7.

1 5 2 3 4 2 3

8 9 I

Domestic water heating

Pump operation and space heating and cooling

When domestic water heating mode is enabled (either manually by According to the season, the customer will select cooling or heating the user, or automatically through a schedule timer) the target on the room thermostat (T). This selection is not possible by

domestic hot water temperature will be achieved by a combination of operating the user interface. the heat exchanger coil and the electrical booster heater.

When space heating/cooling is requested by the room thermostat

When the domestic hot water temperature is below the user

(T), the pump will start operating and the unit (1) will switch to

conﬁgured set point, the 3-way valve will be activated to heat the

"heating mode"/"cooling mode". The unit (1) will start operating to

domestic water by means of the heat pump. In case of large domestic

achieve the target leaving cold/hot water temperature.

hot water demand or a high domestic hot water temperature setting,

In case of cooling mode, the motorised 2-way valve (11) will close as

the booster heater (8) can provide auxiliary heating.

to prevent cold water running through the ﬂoor heating loops (FHL).

It is possible to connect either a 2-wire or a 3-wire 3-way

Make sure to connect the thermostat wires to the correct

valve (6). Make sure to ﬁt the 3-way valve correctly. For

terminals (see "Connection of the thermostat cable" on

more details, refer to "Wiring the 3-way valve" on page 20.

page 20) and to conﬁgure the DIP switch toggle switches

correctly (see "Room thermostat installation conﬁguration"

NOTE

The unit can be conﬁgured so that at low outdoor

on page 23).

temperatures the domestic water is exclusively heated by the booster heater. This assures that the full

Wiring of the 2-way valve (11) is different for a NC (normal

capacity of the heat pump is available for space

closed) valve and a NO (normal open) valve! Make sure to

heating.

connect to the correct terminal numbers as detailed on the

Details on domestic hot water tank conﬁguration for

wiring diagram.

low outdoor temperatures can be found under "Field settings" on page 25, ﬁeld settings [5-02] to [5-04].

The ON/OFF setting of the heating/cooling operation is done by the room thermostat and cannot be done by the user interface.

Application 3

Domestic water heating

Domestic water heating is as described under "Application 2" on

Space cooling and heating application with a room thermostat suitable for heating/cooling changeover connected to the unit.

Heating is provided through ﬂoor heating loops and fan coil units. Cooling is provided through the fan coil units only.

Application 4

Domestic hot water is provided through the domestic hot water tank which is connected to the unit.

Space cooling and heating application without a room thermostat connected to the unit, but with a heating only room thermostat

controlling the ﬂoor heating and a heating/cooling thermostat controlling the fan coil units. Heating is provided through ﬂoor heating

loops and fan coil units. Cooling is provided through the fan coil units only.

5 7

1 2 3 4 6 11

FCU1

FCU2

M M

FCU3

T4 T5 T6

1 2 3 4

11 12

FHL1

FCU1

FCU2

FCU3

FHL2

FHL3

FHL1

FHL2

FHL3

Unit 10 Domestic hot water tank Unit 12 Motorised 2-way valve for Heat exchanger Pump Shut-off valve Collector (ﬁeld supply)

FCU1..3 FHL1..3

Motorised 2-way valve

(ﬁeld supply) Fan coil unit (ﬁeld supply)

Floor heating loop

Heat exchanger Pump

Shut-off valve

FCU1..3

activation of the room thermostat (ﬁeld supply)

Fan coil unit with thermostat (ﬁeld supply)

Motorised 3-way valve (optional)

(ﬁeld supply) Room thermostat with

Collector (ﬁeld supply) By-pass valve (ﬁeld

FHL1..3 Floor heating loop (ﬁeld

supply)

Booster heater Heat exchanger coil

heating/cooling switch (optional)

User interface

supply) Motorised 2-way valve

to shut off the ﬂoor

T4..6

Heating only room thermostat (optional)

Individual room heating loops during cooling operation (ﬁeld

supply)

thermostat for fan coil

heated/cooled room

(optional)

User interface

Installation manual

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Unit for air to water heat pump system

4PW56182-1

NOTE

■

15 17

10 11 1 2 4 5 6 17

Pump operation

With no thermostat connected to the unit (1), the pump (3) can be conﬁgured to operate either as long as the unit is on, or until the

required water temperature is reached.

CAUTION

■ Be sure that the boiler and the integration of the boiler in the system is in accordance with relevant local laws

and regulations.

Details on pump conﬁguration can be found under

Always install a 3-way valve, even if no domestic hot

"Pump operation conﬁguration" on page 23.

water tank is installed. This to ensure that the freeze

protection function (see "[4-04] Freeze protection

Space heating and cooling

function" on page 28) can operate when the boiler is

active.

According to the season, the customer will select cooling or heating through the user interface.

The unit (1) will operate in cooling mode or heating mode to achieve the target leaving water temperature.

With the unit in heating mode, the 2-way valve (11) is open. Hot water is provided to both the fan coil units and the ﬂoor heating loops.

With the unit in cooling mode, the motorised 2-way valve (11) is closed to prevent cold water running through the ﬂoor heating loops

(FHL).

When closing several loops in the system by remotely controlled valves, it might be required to install a by-pass valve (7) to avoid the ﬂow switch safety device from being activated. See also "Application 2" on page 7.

FHL1 FHL2 FHL3

Wiring of the 2-way valve (11) is different for a NC (normal

Motorised 3-way valve

closed) valve and a NO (normal open) valve! Make sure to

Boiler

connect to the correct terminal numbers as detailed on the wiring diagram.

Daikin can not be put responsible for incorrect or

unsafe situations in the boiler system.

The ON/OFF setting of the heating/cooling operation is done by the user interface.

Application 5

1 2 3 4 6

17 5

Space heating with an auxiliary boiler (alternating operation)

Space heating application by either the Daikin unit or by an auxiliary boiler connected in the system. The decision whether either the

E(D/B)* unit or the boiler will operate can be achieved by an auxiliary contact or an E(D/B)* indoor controlled contact.

The auxiliary contact can e.g. be an outdoor temperature thermostat, an electricity tariff contact, a manually operated contact, etc. See

"Field wiring conﬁguration A" on page 10. The E(D/B)* unit controlled contact (also called 'permission signal for

the auxiliary boiler") is determined by the outdoor temperature (thermistor located at the outdoor unit). See "Field wiring conﬁguration B" on page 10.

Bivalent operation is only possible for space heating operation, not for the domestic water heating operation. Domestic hot water in such an application is always provided by the domestic hot water tank

which is connected to the Daikin unit.

FHL1

FHL2

The auxiliary boiler must be integrated in the piping work and in the ﬁeld wiring according to the illustrations below.

FHL3

Outdoor unit Heat exchanger

Domestic hot water tank (optional)

3 Pump

Shut-off valve Collector (ﬁeld supply) Motorised 3-way valve

(delivered with the domestic hot water tank)

Booster heater Heat exchanger coil

15 15

FHL1...3

Boiler (ﬁeld supply) Aquastat valve

(ﬁeld supply) Shut-off valve

(ﬁeld supply) Non-return valve

(ﬁeld supply) Floor heating loop

(ﬁeld supply)

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Installation manual

Unit for air to water heat pump system

4PW56182-1

K1A

K2A

X2M

K1A

Com

■

K1A

KCR

■

Field wiring conﬁguration A

NOTE

■

Conﬁguration A

Make sure that auxiliary contact (A) has sufﬁcient

Com

differential or time delay so as to avoid frequent

E(D/B)*/auto / Boiler

E(D/B)*

X2M

Boiler

thermostat input

changeover between the E(D/B)* unit and the boiler. If the auxiliary contact (A) is an outdoor

K 1A

1 2 3 4

K 2A

X Y

temperature thermostat, make sure to install the thermostat in the shade, so that it is not inﬂuenced or turned ON/OFF by the sun.

K1A K2A

Conﬁguration B

Make sure that the bivalent hysteresis [C-04] has

Boiler thermostat input

sufﬁcient differential to avoid frequent changeover between the E(D/B)* unit and the boiler. As the

Auxiliary contact (normal closed)

outdoor temperature is measured via the outdoor

Heating demand room thermostat (optional)

unit, air thermistor make sure to install the

Auxiliary relay for activation of E(D/B)* unit (ﬁeld supply)

outdoor unit in the shade, so that it is not

inﬂuenced by the sun.

Auxiliary relay for activation of boiler (ﬁeld supply)

Frequent switching may cause corrosion of the boiler in an early stage. Contact the manufacturer

Field wiring conﬁguration B

of the boiler.

E(D/B)* EKRP1HB

■

During heating operation of the E(D/B)* unit, the unit will operate so as to achieve the target

1 2 3 4

KCR

leaving water temperature as set on the user

K1A

X1 X2

interface. When weather dependent operation is active, the water temperature is determined automatically depending on the outdoor

Com

X Y

temperature.

EKRTW*

Boiler

thermostat input

During heating operation of the boiler, the boiler

Boiler thermostat input

will operate so as to achieve the target leaving water temperature as set on the boiler controller.

Cooling demand room thermostat (optional) Heating demand room thermostat (optional) Common room thermostat (optional)

Never set the target leaving water temperature set point on the boiler controller above 131°F (55°C).

Make sure to only have 1 expansion vessel in the water circuit. An expansion vessel is already

Auxiliary relay for activation of bolier unit (ﬁeld supply)

premounted in the Daikin unit.

Permission signal for the auxiliary boiler

NOTE

Make sure to conﬁgure the DIP switch SS2-3 on the

Operation

■ Conﬁguration A

PCB of the E(D/B)* switchbox correctly. Refer to "Room thermostat installation conﬁguration" on

page 23. When the room thermostat requests heating, either the E(D/B)* unit or the boiler starts operating, depending on the position of the auxiliary contact (A).

For conﬁguration B: Make sure to conﬁgure the ﬁeld

settings [C-02, C-03 and C-04] correctly. Refer to

"Bivalent operation" on page 33.

Conﬁguration B

When the room thermostat requests heating, either the E(D/B)*

CAUTION

unit or the boiler starts operating, depending on the outdoor temperature (status of "permission signal for the auxiliary boiler").

Make sure that return water to the E(D/B)* heat exchanger never exceeds 131°F (55°C).

When the permission is given towards the boiler, the space heating operation by the E(D/B)* unit will be automatically

switched off.

For this reason, never put the target leaving water temperature set point on the boiler controller above 131°F (55°C) and install an aquastat(a) valve in the return water

ﬂow of the E(D/B)* unit.

For more details see ﬁeld setting [C-02~C-04].

Make sure that the non-return valves (ﬁeld supply) are

correctly installed in the system. Make sure that the room thermostat (th) is not frequently

turned ON/OFF. Daikin shall not be held liable for any damage resulting

from failure to observe this rule.

(a) The aquastat valve must be set for 131°F (55°C) and must operate to close the

return water ﬂow to the unit when the measured temperature exceeds 131°F (55°C). When the temperature drops to a lower level, the aquastat valve must operate to open the return water ﬂow to the E(D/B)* unit again.

Manual permission towards the E(D/B)* unit on the boiler. In case only the E(D/B)* unit should operate in space

heating mode, disable the bivalent operation via setting [C-02].

In case only the boiler should operate in space heating mode, increase the bivalent ON temperature [C-03] to 77°F (25°C).

Installation manual

EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1

Unit for air to water heat pump system

4PW56182-1

+ 28 hidden pages

Daikin EDLQ036BA6VJU1, EDLQ048BA6VJU1, EDLQ054BA6VJU1, EBLQ036BA6VJU1, EBLQ048BA6VJU1 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual