Mitsubishi Heavy Industries HSB60, FDCW60VNX-APT300, HMK60, RC-HY20, RC-HY40 Installation Manual

INSTALLATION MANUAL

MITSUBISHI HEAVY INDUSTRIES

Air to Water Heat Pump

H y drolution (HM)

HSB60/HMK60/FDCW60VNX-A

PT300/RC-HY20/40

SC012D085BS

English：Original instruction

This heat pump complies with EMC Directive 2004/108/ EC (replaced by 2014/30/EU on 20/4/2016), LV Directive 2006/95/EC (replaced by 2014/35/EU on 20/4/2016). CE marking is applicable to the area of 50 Hz power supply.

HK 200S

Safety precautions

General information for installer

Over view and design

Transport and storage

Supplied components

Assembly

Hanging indoor unit

Hanging control unit

Dimensioning expansion vessel

Recommended installation order

Pipe installation

General

Installation diagram

HSB60

HMK60

System requirements

Overflow valve

Pump capacity diagram

Pressure drop in indoor unit

Dimensions and pipe connections

HSB60

HMK60

PT300

Water circuit

Connection to heating system

Connection to hot water heater

Housing disassembly of tank unit

Connecting hot water tank to indoor unit

Connecting hot water tank to water main

Hot water circulation circuit

Connection of external heat source

Refrigerant circuit

Connecting refrigerant pipes

Piping insulation

Drain connection

Dockings

Electrical installation

General

Electrical components

Accessibility, electrical connection for controller

Cable lock

Connection

<HSB60>

Power supply

Connection between indoor and outdoor unit

Connection between indoor unit and controller

Cascade connection setting

Recommended fuse size for HSB60

Recommended cable size for HSB60

<HMK60>

Circuit breaker

Power supply

Connection between indoor and outdoor unit

Connection between indoor unit and controller

Recommended fuse size for HMK60

Recommended cable size for HMK60

<RC-HY20/40>

Power supply

Connection between controller and indoor unit

HSB60 with RC-HY20

HSB60 with RC-HY40

HMK60 with RC-HY20

HMK60 with RC-HY40

Connection between controller and circulation pump (GP12) 38

HSB60 with RC-HY20

HSB60 with RC-HY40

HMK60 with RC-HY20

HMK60 with RC-HY40

Connection between controller and 3-way valve (QN10/QN12) 40

HSB60 with RC-HY20

HSB60 with RC-HY40

HMK60 with RC-HY20

HMK60 with RC-HY40

Connection between controller and sensors

RC-HY20 with HSB60

RC-HY20 with HMK60

RC-HY40 with HSB60

RC-HY40 with HMK60

Optional connections

RC-HY20

󱾁

Room sensor BT50

󱾁

Step controlled additional heat

Connection example with HMK60

󱾁

Relay output for emergency mode

Connection example with HMK60

󱾁

External circulation pump

󱾁

AUX inputs/outputs

󱾁

myUpway™

RC-HY40

󱾁

Load monitor

󱾁

Room sensor BT50

󱾁

Step controlled additional heat

󱾁

Relay output for emergency mode

󱾁

External circulation pump

󱾁

AUX inputs/outputs

󱾁

myUpway™

Commissioning and adjusting

Preparation

Filling and venting

Hot water tank

Climate system

Inspection of installation

Start-up and inspection

Before start-up

Commissioning with heat pump

Commissioning with additional heater only

3-way valve operation check

AUX function check

Cooling mode

Cleaning particle filter

Secondary adjustment

Start guide

Heating/cooling curve setting

Hot water circulation setting

SG ready

Control

Display unit

Menu system

Menu list

Menu 1 – Indoor climate

Menu 2 – Hot water

Menu 3 – Info

Menu 4 – My system

Menu 5 – Service

Service

Disturbances in comfort

Manage alarm

Troubleshooting

Additional heating only

Alarm list

Accessories

Technical data

Dimensions and setting-out coordinates

Electrical circuit diagram

Table of Contents

Safety precautions

When installing the unit, be sure to check whether the selection of installation place, power supply specifications, usage limitation (piping length, height differences between indoor and outdoor units, power supply voltage and etc.) and installation spaces.



We recommend you to read this “SAFETY PRECAUTIONS” carefully before installation in order to gain full advantage of the functions of the unit and to avoid malfunction due to mishandling.



The precautions described below are divided into

WARNING

and

CAUTION

. The matters with possibilities leading to serious consequences such as death or serious personal injury due to erroneous handling are listed in the

WARNING

and the matters with possibilities leading to personal injury or damage of the unit due to erroneous handling including probability leading to serious consequences in some cases are listed in

CAUTION

. These are very important precautions for safety. Be sure to observe all of them without fail.



Be sure to confirm no anomaly on the equipment by commissioning after completed installation and explain the operating methods as well as the maintenance methods of this equipment to the user according to the owner’s manual.



Keep the installation manual together with owner’s manual at a place where any user can read at any time. Moreover if necessary, ask to hand them to a new user.

This heat pump complies with EMC Directive 2014/30/EU. This appliance is designed for use in a home environment and 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

WARNING

Installation must be carried out by the qualified installer.

If you install the system by yourself, it may cause serious trouble such as water leaks, electric shocks, fire and personal injury, as a result of a system malfunction.

Install the system in full accordance with the instruction manual.

Incorrect installation may cause bursts, personal injury, water leaks, electric shocks and ﬁ re.

Use the original accessories and the specified components for installation.

If parts other than those prescribed by us are used, It may cause water leaks, electric shocks, ﬁ re and personal injury.

When installing in small rooms, take prevention measures not to exceed the density limit of refrigerant in the event of leakage.

Consult the expert about prevention measures. If the density of refrigerant exceeds the limit in the event of leakage, lack of oxygen can occur, which can cause serious accidents.

Ventilate the working area well in the event of refrigerant leakage during installation.

If the refrigerant comes into contact with naked ﬂ ames, poisonous gas is produced.

After completed installation, check that no refrigerant leaks from the system.

If refrigerant leaks into the room and comes into contact with an oven or other hot surface, poisonous gas is produced.

shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision. This in accordance to applicable parts of the low voltage directive 2014/35/EU, LVD. This appliance is also intended for use by experts or trained users in shops, hotels, light industry, on farms and in similar environments. This in accordance to applicable parts of the machinery directive 2006/42/EC. CE marking is applicable to the area of 50 Hz power supply. The emission sound pressure level from each Indoor and Outdoor unit is under 70 dB(A).

the box. Install the service panel correctly.

Incorrect installation may result in overheating and ﬁ re.

Do not perform brazing work in the airtight room.

It can cause lack of oxygen.

Use the prescribed pipes, flare nuts and tools for R410A.

Using existing parts (for R22 or R407C) can cause the unit failure and serious accidents due to burst of the refrigerant circuit.

Tighten the flare nut by using double spanners and torque wrench according to prescribed method. Be sure not to tighten the flare nut too much.

Loose ﬂ are connection or damage on the ﬂ are part by tightening with excess torque can cause burst or refrigerant leaks which may result in lack of oxygen.

Do not open the service valves for liquid line and gas line until completed refrigerant piping work, air tightness test and evacuation.

If the compressor is operated in state of opening service valves before completed connection of refrigerant piping work, air can be sucked into refrigerant circuit, which can cause bust or personal injury due to anomalously high pressure in the refrigerant.

Do not put the drainage pipe directly into drainage channels where poisonous gases such as sulphide gas can occur.

Poisonous gases will ﬂ ow into the room through drainage pipe and seriously affect the user’s health and safety.

Only use prescribed optional parts. The installation must be carried out by the qualified installer.

If you install the system by yourself, it can cause serious trouble such as water leaks, electric shocks, ﬁ re.

Do not run the unit with removed panels or protections

Touching rotating equipments, hot surfaces or high voltage parts can cause personal injury due to entrapment, burn or electric shocks.

Be sure to fix up the service panels.

Incorrect ﬁ xing can cause electric shocks or ﬁ re due to intrusion of dust or water.

Do not perform any repairs or modifications by yourself. Consult the dealer if the unit requires repair.

If you repair or modify the unit, it can cause water

Safety precautions

Hang up the unit at the specified points with ropes which can support the weight in lifting for portage. And to avoid jolting out of alignment, be sure to hang up the unit at 4-point support.

An improper manner of portage such as 3-point support can cause death or serious personal injury due to falling of the unit.

Install the unit in a location with good support.

Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury.

Ensure the unit is stable when installed, so that it can withstand earthquakes and strong winds.

Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury.

Ensure that no air enters in the refrigerant circuit when the unit is installed and removed.

If air enters in the refrigerant circuit, the pressure in the refrigerant circuit becomes too high, which can cause burst and personal injury.

The electrical installation must be carried out by the qualified electrician in accordance with “the norm for electrical work” and “national wiring regulation”, and the system must be connected to the dedicated circuit.

Power supply with insufficient capacity and incorrect function done by improper work can cause electric shocks and ﬁ re.

Be sure to shut off the power before starting electrical work.

Failure to shut off the power can cause electric shocks, unit failure or incorrect function of equipment.

Be sure to use the cables conformed to safety standard and cable ampacity for power distribution work.

Unconformable cables can cause electric leak, anomalous heat production or ﬁ re.

Use the prescribed cables for electrical connection, tighten the cables securely in terminal block and relieve the cables correctly to prevent overloading the terminal blocks.

Loose connections or cable mountings can cause anomalous heat production or ﬁ re.

Arrange the wiring in the control box so that it cannot be pushed up further into

leaks, electric shocks or ﬁ re.

Do not perform any change of protective device itself or its setup condition

The forced operation by short-circuiting protective device of pressure switch and temperature controller or the use of non specified component can cause ﬁ re or burst.

Be sure to switch off the power supply in the event of installation, inspection or servicing.

If the power supply is not shut oﬀ , there is a risk of electric shocks, unit failure or personal injury due to the unexpected start of fan.

Consult the dealer or an expert regarding removal of the unit.

Incorrect installation can cause water leaks, electric shocks or ﬁ re.

Stop the compressor before disconnecting refrigerant pipes in case of pump down operation.

If disconnecting refrigerant pipes in state of opening service valves before compressor stopping, air can be sucked, which can cause burst or personal injury due to anomalously high pressure in the refrigerant circuit.

CAUTION

Carry out the electrical work for ground lead with care.

Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line’s ground lead. Incorrect grounding can cause unit faults such as electric shocks due to shortcircuiting.

Use the circuit breaker with sufficient breaking capacity.

If the breaker does not have sufficient breaking capacity, it can cause the unit malfunction and ﬁ re.

Earth leakage breaker must be installed.

If the earth leakage breaker is not installed, it can cause electric shocks.

Do not use any materials other than a fuse with the correct rating in the location where fuses are to be used.

Connecting the circuit with copper wire or other metal thread can cause unit failure and ﬁ re.

Do not install the unit near the location where leakage of combustible gases can occur.

If leaked gases accumulate around the unit, it can

cause ﬁ re.

Do not install the unit where corrosive gas (such as sulfurous acid gas etc.) or combustible gas (such as thinner and petroleum gases) can accumulate or collect, or where volatile combustible substances are handled.

Corrosive gas can cause corrosion of heat exchanger, breakage of plastic parts and etc. And combustible gas can cause ﬁ re.

Secure a space for installation, inspection and maintenance specified in the manual.

Insufficient space can result in accident such as personal injury due to falling from the installation place.

When the outdoor unit is installed on a roof or a high place, provide permanent ladders and handrails along the access route and fences and handrails around the outdoor unit.

If safety facilities are not provided, it can cause personal injury due to falling from the installation place.

Do not use the indoor unit at the place where water splashes may occur.

Since the indoor unit is not waterproof, it can cause electric shocks and ﬁ re.

Do not install or use the system close to the equipment that generates electromagnetic fields or high frequency harmonics.

Equipment such as inverters, standby generators, medical high frequency equipments and telecommunication equipments can affect the system, and cause malfunctions and breakdowns. The system can also aﬀ ect medical equipment and telecommunication equipment, and obstruct its function or cause jamming.

Do not install the outdoor unit in a location where insects and small animals can inhabit.

Insects and small animals can enter the electric parts and cause damage or ﬁ re. Instruct the user to keep the surroundings clean.

Do not use the base flame for outdoor unit which is corroded or damaged due to long periods of operation.

Using an old and damage base flame can cause the unit falling down and cause personal injury.

Do not install the unit in the locations listed below.



Locations where carbon ﬁ ber, metal powder or

Safety precautions

any powder is ﬂ oating.



Locations where any substances that can aﬀ ect the unit such as sulphide gas, chloride gas, acid and alkaline can occur.



Vehicles and ships.



Locations where cosmetic or special sprays are often used.



Locations with direct exposure of oil mist and steam such as kitchen and machine plant.



Locations where any machines which generate high frequency harmonics are used.



Locations with salty atmospheres such as coastlines.



Locations with heavy snow (If installed, be sure to provide base ﬂ ame and snow hood mentioned in the manual).



Locations where the unit is exposed to chimney smoke.



Locations at high altitude (more than 1000m high).



Locations with ammonic atmospheres.



Locations where heat radiation from other heat source can aﬀ ect the unit.



Locations without good air circulation.



Locations with any obstacles which can prevent inlet and outlet air of the unit.



Locations where short circuit of air can occur (in case of multiple units installation).



Locations where strong air blows against the air

outlet of outdoor unit. It can cause remarkable decrease in performance, corrosion and damage of components, malfunction and ﬁ re.

Do not install the outdoor unit in the locations listed below.



Locations where discharged hot air or operating

sound of the outdoor unit can bother

neighborhood.



Locations where outlet air of the outdoor unit

blows directly to plants.



Locations where vibration can be ampliﬁ ed and

transmitted due to insufficient strength of

structure.



Locations where vibration and operation sound

generated by the outdoor unit can affect

seriously. (on the wall or at the place near bed

room)



Locations where an equipment aﬀ ected by high

harmonics is placed. (TV set or radio receiver is

placed within 5m)



Locations where drainage cannot run oﬀ safely. It can aﬀ ect surrounding environment and cause a claim.

Do not install the remote controller at the direct sunlight.

It can cause malfunction or deformation of the remote controller.

Do not use the unit for special purposes such as storing foods, cooling precision instruments and preservation of animals, plants or art.

It can cause the damage of the items.

Take care when carrying the unit by hand.

If the unit weights more than 20kg, it must be carried by two or more persons. Do not carry by the plastic straps, always use the carry handle when carrying the unit by hand. Use gloves to minimize the risk of cuts by the aluminum ﬁ ns.

Dispose of any packing materials correctly.

Any remaining packing materials can cause personal injury as it contains nails and wood. And to avoid danger of suﬀ ocation, be sure to keep the plastic wrapper away from children and to dispose after tear it up.

Pay attention not to damage the drain pan by weld spatter when welding work is done near the indoor unit.

If weld spatter entered into the indoor unit during welding work, it can cause pin-hole in drain pan and result in water leakage. To prevent such damage, keep the indoor unit in its packing or cover it.

Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them.

Insufficient insulation can cause condensation, which can lead to moisture damage on the ceiling, ﬂ oor, furniture and any other valuables.

Be sure to perform air tightness test by pressurizing with nitrogen gas after completed refrigerant piping work.

If the density of refrigerant exceeds the limit in the event of refrigerant leakage in the small room, lack of oxygen can occur, which can cause serious accidents.

Do not touch any buttons with wet hands.

It can cause electric shocks.

Do not shut off the power supply immediately after stopping the operation.

Wait at least 5 minutes, otherwise there is a risk of water leakage or breakdown.

Do not control the system with main power switch.

It can cause ﬁ re or water leakage. In addition, the

Safety precautions

fan can start unexpectedly, which can cause personal injury.

Do not touch any refrigerant pipes when the system is in operation.

During operation the refrigerant pipes become extremely hot or extremely cold depending the operating condition, and it can cause burn injury or frost injury.

Notabilia for units designed for R410A

Only use R410A refrigerant. R410A is the refrigerant whose pressure is 1.6 times as high as that of conventional refrigerant.

The size of charging port of service valve and check joint for R410A are altered from that for conventional refrigerant in order to prevent the system being charged with the incorrect refrigerant by mistake. And the protruding dimension of pipe for flare processing and flare nut size for R410A are also altered from that for conventional refrigerant in order to reinforce strength against the pressure for R410A. Accordingly the dedicated tools for R410A listed in the below mentioned table should be prepared for installation and servicing.

Dedicated tools for R410A a) Gauge manifold b) Charge hose c) Electronic scale for refrigerant charge d) Torque wrench e) Flare tool f) Protrusion control gauge for copper pipe g) Vacuum pump adapter h) Gas leak detector

Do not use charging cylinder. Using charging cylinder may alter the composition of refrigerant, which results in making the performance of the system worse.

Refrigerant must be charged always in liquid state from the bottle.

General information for the installer

General information for installer

Over view and design

HSB60

XL1

XL2

XL1 3

XL14

HZ2

EP2

PF3

UB1

UB2

UB3

BT15

BT3

BP4

AA2 3

AA23-X100

AA2 3 - X4

AA23-S3

A23-F3

AA2 3 - X1

BT12

Pipe connections

XL1(Red mark) Climate system supply XL2 (Blue mark) Climate system return XL14 Connection, gas line XL13 Connection, liquid line

Valves etc.

EP2 Heat exchanger HQ1 Particle ﬁ lter (supplied) HZ2 Drying ﬁ lter

Electrical components

AA23 Communication board AA23-F3 Fuse for external heating cable AA23-S3 DIP switch, addressing of outdoor unit AA23-X1 Terminal block, incoming supply, connection

of KVR

AA23-X4 Terminal block, communication with indoor

module / control module

AA23-X100 Terminal block, communication outdoor

module

For outdoor unit installation information, see Installation manual for Outdoor unit.

Sensor, thermostats

BP4 Pressure sensor, high pressure BT3 Temperature sensor, heating medium, return BT12 Temperature sensor, condenser, supply BT15 Temperature sensor, ﬂ uid pipe

Miscellaneous

UB1 Cable gland UB2 Cable gland UB3 Cable gland

HMK60

XL10

XL11

QN12

QN10

GP12

EP2

CM1

EB1

XL4 XL13

XL14

XL3

XL2

XL1

BP4

EB15

BT15

BT71

BT6

EB2

BT64

BT63

BT7

BT12

BT3

BT25

Pipe connections

XL1

(

)

Connection, heating medium, supply

XL2

(

)

Connection, heating medium, return XL3 Connection, cold water XL4 Connection, hot water XL10 Connection, cooling XL11 Connection, safety group, manometer XL13 Connection, liquid cooling medium XL14 Connection, gas cooling medium

HVAC elements

CM1 Diaphragm expansion vessel, closed QN10 Isolation valve, domestic hot water/central heating QN12 Isolation valve, cooling/heating GP12 Circulation pump EP2 Heat exchanger

Sensors

BP4 Pressure sensor, high pressure BT3 Temperature sensor, heating medium return BT6 Temperature sensor, hot water loading BT7 Temperature sensor, top of the hot water heater BT12 Temperature sensor, condenser outlet BT15 Temperature sensor, liquid BT25 Temperature sensor, heating medium supply BT63 Temperature sensor, heating medium supply

downstream the submersible heater BT64 Temperature sensor, cooling medium supply BT71 Temperature sensor, heating medium re- turn

Others

EB15 HMK 60 PF3 Serial number EB2 Domestic hot water tank

General information for the installer

PT300

Section of the PT300 storage tanks.

1. Upper insulation of the storage tank

2. Protective magnesium anode

3. Enamelled tank

4. Side insulation of the storage tank

5. Coil

6. Lower insulation of the storage tank

7. Adjustable foot

Side view of the PT300 storage tanks.

8. Thermometer

9. Connector pipe for mounting electric heating unit

10. Inspection opening

11. Hot water intake connector pipe

12. Hot water circulation connector pipe

13. Temperature sensor cover

14. Coil supply connector pipe

15. Connection of return line from the coil

16. Cold water supply connector pipe

General information for the installer

Transport and storage

Indoor unit and tank unit must be transported and stored vertically in dry conditions.

Supplied components

HSB60 Indoor unit

Particle filter R25 (HQ1). Brackets kit













HMK60 Indoor unit with tank

Safety valve with pressure gauge

RC-HY20/40 Control unit

Room sensor (RC-HY40 only)Outside sensor

LEK

Temperature sensorInsulation tape

LEK

Cable tiesAluminium tape

LEK

Current sensor (RC-HY40 only)Heating pipe paste

Assembly

■ It is recommended that indoor unit is installed in a room with existing ﬂ oor drainage, most suitably in a utility room or boiler room.

■ For indoor unit and control unit, the mounting surface must be ﬁ rm, ﬂ at and vertical, preferably a concrete wall.

■ Indoor unit with tank and tank unit must be set on a solid waterproof base that would keep the weight of the unit. The height-adjusting legs allow for levelling and stable setting.

HMK60

20-40 mm

Wrench size 13

PT300

0-15 mm

■ For indoor unit with tank, floor drain port is required to connect drain hose in case cooling function is used.

■ Install indoor unit with its back to an outside wall, ideally in a room where noise does not matter. If this is not possible, avoid placing it against a wall behind a bedroom or other room where noise may be a problem.

■ Route pipes so they are not fixed to an internal wall that backs on to a bedroom or living room.

■ Install indoor unit with tank, tank unit and its pipings to indoor unit indoors in order to avoid icing.

■ Ensure free space described in the following figures for future maintenance.

General information for the installer

HSB60

Recommendation for positioning on wall

Min. 200mm Min. 200mm

Min. 300mm

Recommendation for positioning in corner

Min. 400mm

*Min 800mm is required in front

General information for the installer

HMK60

800 mm

IMPORTANT

For HMK60, leave 10 – 25 mm free space between the indoor

module and the back wall f or cables and piping.

PT300

min

is required on top to replace anode bar, and 500 mm is

required in front to replace immersion heater if equipped.

Application Connector pipe dia. Type of anode A

min

PT300

1" Chain ø26×8 150 mm

¾" Titanium anode 200 mm

RC-HY20/40

100 mm

100 mm 100 mm

General information for the installer

Hanging indoor unit

It is recommended that the split box is installed in a room with existing ﬂ oor drainage, most suitably in a utility room or boiler room.

1. The bracket for the split box is mounted to the wall by use of appropriate screws.

4-ø10

2. Insert HSB60 in the bracket mounted to the wall.

NOTE

Indoor unit weigh 16 kg excluding water inside.

Hanging control unit

Use all mounting points and install control unit upright against a ﬂ at wall. Make sure whole back surface faces the wall.

Mounting point Mounting point

Dimensioning expansion vessel

The expansion vessel volume must be at least 5% of total water volume in the circulation system.

HMK60 is equipped with an expansion vessel with a volume of 10 liters.

Initial pressure and max height difference

Recommended maximum height diﬀ erence between expansion vessel and the highest point in the system is 5m.

The initial pressure of the pressure expansion vessel must be dimensioned according to the maximum height (H) between the vessel and the highest positioned radiator, see figure. An initial pressure of 0.5 bar (5 mvp) means a maximum permitted height diﬀ erence of 5 m.

If the standard initial pressure in the pressure vessel is not high enough it can be increased by filling via the valve in the expansion vessel. The expansion vessel’s standard initial pressure must be entered in the check list on User’s manua1.

Any change in the initial pressure affects the ability of the expansion vessel to handle the expansion of the water.

Consult local distributor in case height diﬀ erence exceeds 5m.

Recommended installation order

1. Hang indoor unit and control unit to appropriate position and connect indoor unit and tank unit.

2. Connect indoor unit to climate system, cold and hot water lines as well as any external heat sources. See page 14, 15. Also see docking descriptions on page 26-28 and further on.

3. Install refrigerant pipes according to the description on the Installation manual for outdoor unit.

4. Connect current limiter, any centralised load control and external contacts as well as the cable between indoor unit and outdoor unit.

5. Connect incoming electricity to indoor unit and/or outdoor unit. See page 34-36.

6. Follow the commissioning instructions on page 37-55.

General information for the installer

Pipe installation

General

Pipe installation must be carried out in accordance with current norms and directives.

A following table shows plumbing necessary for each product.

Refrigerant Plumbing HSB Necessary Necessary HMK Necessary Necessary PT ⸺ Necessary PC-HY ⸺ ⸺

This heat pump system is designed for low or medium temperature heating system. It is recommended water temperature must not exceed 55°C on supply and 45°C on

return at lowest design outdoor temperature (DOT) though indoor unit can operate with a return temperature of up to 65°C and an outgoing temperature from the unit of 65°C.

Indoor unit is not equipped with shut oﬀ valves; these must be installed outside the heat pump to facilitate any future servicing.

Indoor unit can be connected to the radiator system, floor heating system and/or fan convectors.

Safety valve is not equipped with in indoor unit. Make sure to install safety valve in the circuit.

FDCW60

AA25

HSB60

BP4

BT3BT15

BT12

XL14

XL13

XL1

XL2

PT300

Pipe installation

Installation diagram

FDCW60VNX-A outdoor unit provides heat for space heating and domestic hot water using free energy in the outdoor air within the range of low temperature up to -20°C. Connection is diﬀ erent according to the type of indoor unit (see below ﬁ gures). The system is

controlled by RC-HY20 or RC-HY40 control unit.

HSB60

HSB60 indoor unit is equipped with plate heat exchanger. It needs to install expansion vessel, shut-oﬀ valves, safety valve, electric heater and circulation pump to make a complete heating system. In case domestic hot water is required, 3 way valve and tank is also necessary.

HMK60

HMK60 indoor unit is equipped with coil water heater, expansion vessel, safety valve, electric heater, plate heat exchanger, sensors and gauge, and circulation pump.

FDCW60

XL10

BP4

XL1

XL11

XL14

XL13

XL2

XL4

XL3

HMK60

Pipe installation

Symbol Meaning Symbol Meaning

Vent

Manometer

Cut-oﬀ valve Circulation pump

Water tap Particulate ﬁ lter

Non-return valve Compressor

Balancing valve Heat exchanger

Three-way valve Cooling

Safety valve Central heating system

Thermometer Domestic hot water

Temperature sensor

Heating systems Floor heating

Diaphragm expansion vessel

Cooling system

System requirements

The minimum water volume in the climate system is subject to the values in the table below. If it is not fulfi lled, volume vessel must be installed.

For more options, see the docking description on Page 24. (liter)

With underfl oor

cooling application

Without underfl oor

cooling application HSB60, HMK60, FDCW60VNX-A

50 20

Overflow valve

NOTE

A free f low is required for all docking options, which

means that an over fl ow val ve must be installed.

The circulation pump may become damaged.

Pump capacity diagram

HSB60

HSB60 is not equipped with circulation pump.

This graph shows the characteristic of CPD11-25/55.

Pressure [kPa]

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

Flow [l / s]

HMK60

Pressure [kPa]

Flow [l / s]

Pipe installation

Pressure drop in indoor unit

HSB60

0,0

0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,

Tryckfall HBS05

HSB60, 140HSB100

kPa]

Flow [l / s]

HMK60

0 0.2 0.4 0.6

[kPa]

Flow[l/s]

Connection of extra circulation pump

When connecting extra circulation pumps, requirements for pressure, maximum flow etc must be met. See page 27 for location.

NOTE

Non-ret urn v alve must be install ed in c ase e xt ra cir culat ion

pump is used. See page 27 for the position.

The circlulation pump may become damaged.

Dimensions and pipe connections

HSB60

XL13

XL1

XL14

XL2

Pipe connections

XL1 (Red mark) Climate system, ﬂ ow ø28 mm

XL2 (Blue mark) Climate system, return ø28 mm

XL14 Gas line refrigerant, ﬂ are ½ 

XL13 Liquid line refrigerant, ﬂ are ¼ 

HMK60

600.5

610.5

300

156

93.5 92.5

XL11

XL14

XL1XL2XL3XL5XL4

XL13

PF3

XL10

155

152

Pipe connections

XL1 Connection, Heating medium supply ø22 mm XL2 Connection, Heating medium return ø22 mm XL3 Connection, cold water ø22 mm XL4 Connection, hot water ø22 mm XL5 Connection, circulation ø15 mm XL13 Connection, liquid cooling medium ¼ ࡉ XL14 Connection, gas cooling medium ½ ࡉ XL10 Connection, cooling ø22 mm XL11 Connection, safety valve ø22 mm, manometer

Other information

PF3 Serial number plate

(

)

(

)

Pipe installation

PT300

1634

1398

1187

1107

840

588

336

167

21-0/+15

315

930

1325

Connection U/m PT300

Inspection opening mm ø120

Heating unit connection inch 1½  Female

Thermometer enclosure mm ø10 Female

Hot water outlet inch 1  Male

Hot water circulation inch ¾  Male

Temp. sensor enclosure (BT7) mm ø16 Female

Coil supply inch 1  Male

Temp. sensor enclosure (BT6) mm ø16 Female

Return from coil inch 1  Male

Cold water input inch 1  Male

Pipe installation

Water circuit

Connection to heating system

Connect XL1 to supply line and X2 to return line from heating system.

■ All required safety devices and shut-off valves must be installed as close to the indoor unit as possible.

■ Install bleed valves where necessary, highest point of the water system in usual case.

■ When connecting to a system with thermostats on all radiators, install an overﬂ ow valve or remove some of the thermostats to ensure suﬃ cient ﬂ ow.

■ See section Dockings on page 25 for outline diagram.

■ Install a safety valve with manometer on heating circuit and hot water circuit. (FL2)

For HSB60 install a safety valve for heating circuit on the

water pipe returning to indoor unit since it doesn’t have port for FL2.

The entire length of the overﬂ ow water pipe from the safety

valves must be inclined to prevent water pockets and must also be frost proof.

■ The end of overﬂ ow water pipe from the safety valves must be left open to the atmosphere. The water may drip from the pipe.

HSB60

XL14 XL1 XL13 XL2

Install safety valve as close to XL2 as possible.

HMK60

XL9XL8

XL3

XL5 XL4 XL2

XL1

XL10

XL11

Install safety valve FL2 on XL11.

Connection to hot water heater

For HSB60 indoor unit, it is necessary to connect PT300 tank unit applying 3 way valve in order to use domestic hot water function.

For HMK60 indoor unit, 180L tank unit is integrated in

indoor unit.

Housing disassembly of tank unit

Removable housing with thermal insulation facilitates transport and installation of the storage tank. Disassembly the housing in the following order (see below ﬁ gure):

1. Remove the Temperature gauge, plug of the heating element connector pipe and blanking plate of the inspection opening.

2 Remove the upper cover of the housing together with

thermal insulation.

3. Remove the plugs from the connector pipes and black bushings.

4. Remove the fixing screws and the strip connecting the housing jacket.

5. Remove the jacket surrounding the tank (housing jacket.)

6. Remove the four-piece thermal insulation.

After the installation of the storage tank in its ﬁ nal location, reinstall the removed components in the reverse order.

Housing and thermal insulation disassembly

Connecting hot water tank to indoor unit

CAUTION

Instal lation and commis sioning of the storage tank

shall onl y be d one b y ap propri atel y qualif ied install er.

The installer should inform the user of the functions of

the product and provide the necessary in formation on its

safe use.

Information

We recommend installing a strainer in order to protect the

pumps, check valve and the components of the heating

system.

■ Tank and its pipings to indoor unit must be installed indoors where the temperature wouldn't drop below 15°C in order to prevent pipings from icing.

■ Maximum piping length between indoor unit and tank is 10 m.

■ Tank unit should be placed on firm, preferably a concrete fl oor or foundation.

Pipe installation

■ Tank unit can be aligned using the adjustable feet.

■ Protection against overpressure shall be made in accordance with the relevant regulations.

■ Connect the heating system according to the installation diagram (see ﬁ gure).

Installation diagram of the PT storage tank with one coil.

supply from heat pump

1. PT storage tank

2. Cut-off valve

return to heat pump

Connecting hot water tank to water main

■ Install a mixing valve if the temperature exceeds 60 °C.

■ It is recommended to install a thermostatic mixing valve for stable temperature hot water supply.

■ Connect the storage tank to the water supply system of water pressure at least 1 bar and max 10 bar. Install a pressure reducer if the pressure at the cold water inlet to the tank is higher than allowed.

■ Install a safety valve which have a maximum 10.0 bar opening pressure on the incoming domestic water line according to outline diagram in order to protect the storage tank against overpressure. Pressure increases during heating the water.

■ During heating the water, small and temporary water ﬂ ow from the safety valve can occur, which indicates that the pressure has increased above the rated value, which triggered the valve. This may in no way be prevented.

■ Safety valve drain line should be installed with a decline, in an environment free of freezing and remain open to the atmosphere. The manufacturer is not responsible for ﬂ ooding the room through the safety valve.

■ Blocked safety valve can cause equipment failure. Drain the outﬂ ow from the safety valve to the sewerage or drain grate.

■ See section Dockings on page 25 for outline diagram.

■ Connect the water supply system according to the installation diagram.

Installation diagram of the PT storage tank with one coil.

DHW

hot water circulation (optional)

to sewerage

water supply system

1. PT storage tank

2. Cut-oﬀ valve

3. Safety valve

4. Drain valve

5. Pressure reducer (option, if the pressure in the system exceeds the allowable value)

6. Strainer

7. Hot water circulating pump

8. Hot water expansion vessel

Information

In order to minimi ze t he f low of wate r f ro m the saf ety val ve

associated with the thermal expansion of the liquid, it is

advisable to install a suitable expansion vessel at the cold

water connection (see item 8.)

CAUTION

Installation of the appropriate safety valve in the cold

water supply line protecting the unit against

overpressure is mandatory!

CAUTION

Installation of necking of any kind (such as reducers, dirt pockets,

etc.) and cut-o valves between the storage tank and the safety

valve is not allowed. Only a T-pipe with a drain valve and a T-pipe

with an expansion vessel may be installed in these line sections.

CAUTION

Never block the safety valve or drain line. This can cause

a dangerous overpressure in the storage tank.

CAUTION

When heating water, slight, temporary discharge from the safety valve can occur. This is a correct safety valve function. Any attempt to interfere in its operati on can

lead to the danger and destruction of the storage tank.

CAUTION

Never use the equipment with clogged safety valves.

Connection

After the installation and levelling the tank, follow the procedure below (for the connector pipe symbols, refer to page 19):

1. Remove protecting plugs from the connector pipes

2. Connect the hot water intake line (N).

3. Connect the cold water supply line together with the required safety valves (G).

4. If the system has the hot water circulation system, connect it to the connector pipe (L). Otherwise, plug the pipe.

5. Connect the supply (J) and return (H) of the heating medium to the coil.

CAUTION

If there is an electric heating module installed in the

storage tank,  ll the tank with water before connecting

it to the electrical installation.

Pipe installation

Hot water circulation circuit

Hot water circulation function is available for HMK60 and PT300.

HMK60

To connect the circulation:

1. Remove the XL5 plug from the top of the housing.

XL5

2. Remove the front panel, then slide the control panel down to access the hydraulic connections.

3. Remove the plug from the circulation pipe (XL5).

XL5

4. Install the elbow, facing the rear housing, on the circulation pipe.

5. Connect the pipe to the elbow, with the dimensions shown in the ﬁ gure below, leading pipe in the top of the housing, in place of the XL5 plug. Mount the pipe insulation.

520

120

Circulation pipe dimensions (*) Elbow 15x15 (*)

6. At the outlet of the circulation tube, install the circulation pump and then connect its control to the RC-HY (Chapter 5 Electrical connection).

7. Install the control panel and the front panel.

(*) Prepared on site.

PT300

If the system has the hot water circulation system, connect it to the port L (see page 19).

Then install the Cut-oﬀ valves, circulation pump and strainer.

Pipe installation

Connection of external heat source

External heat source, e.g. a gas or oil boiler or electric heater, can be connected on supply line of heating system (XL1).

Pipe installation

Refrigerant circuit

Connecting refrigerant pipes

See Installation manual for outdoor unit.

Piping insulation

Install insulation on all piping in order to avoid condensation during cooling operation.

It is also strongly recommended to insulate piping for heating only application in order to avoid getting burned or reducing the heating capacity.

The thickness of the insulation should be 20mm where the relative humidity exceeds 70%.

Drain connection

HMK 60 is equipped with a condensate hose in the heat exchanger section. The hose drains all condensate away from the device to minimize the risk of damage. If necessary, the hose can be extended.

Condensate hose

Dockings

General

Installation requirements

Hydrolution can be connected in several diﬀ erent ways, some of which are shown on the following pages.

Min flow, climate system

Max flow, climate system

Min flow, climate system, at 100% circulation pump speed

Min volume, climate system during underfloor cooling

Min volume, climate system during heating, cooling

Max supply temp. cooling

Min supply temp. cooling

Max supply temperature with compressor at outdoor temp -15°C

Max temperature from external heat source

Max temperature in indoor unit

Max temperature, climate system

Max pressure, climate system

0.25 MPa (2.5 Bar)

FDCW60VNX-A

HMK60HSB60

65 °C

Highest recommended supply/return temperature

55/45°C

65 °C

58 °C

25 °C

7 °C

20 L

50 L

0.29 L/s

0.19 L/s

0.09 L/s

Nominal system flow heating (ѬT=5K)

0.29 L/s (6kW, 7/45°C)

Nominal system flow cooling (ѬT=5K)

0.28 L/s (5.8kW, 35/7°C)

External circulation pump must be used when the pressure drop in the system is greater than the available external pressure. In such cases, a bypass line with non-return valve must be installed. Use an overﬂ ow valve if system ﬂ ow cannot be guaranteed.

Symbol key

MeaningSymbol

Venting valve

Shut-off valve

Non-return valve

Control valve

Safety valve

Temperature sensor

Expansion vessel

Pressure gauge

Circulation pump

Shunt / shuttle valve

Fan

Pipe installation

Docking alternatives

Heating system can be constructed in several different ways combining indoor unit, tank, control unit and other accessories.

For further option information, see page 84.

In the system example shown on the following page, heating, hot water as well as cooling operation are available.

Additional heating is helpful on the cold day of the year as the energy from the air is reduced. It is also recommended as backup in case the heat pump operation is blocked for any reason (e.g. ambient temperature exceeds the operation limit of heat pump).

NOTE

The heating medium side and the hot water side must be

f itted w ith the necessar y safet y equipment in accordance

with the applicable regulations.

This is the outline diagram. Actual installations

must be planned according to applicable

standards.

Explanation

AA25 Controller

BT1 Outdoor sensor

BT6 Temperature sensor, hotwater charging

BT7 Temperature sensor, hot water top

BT25 Temperature sensor, external supply line

BT50 Room sensor

BT63 Temperature sensor, external supply line after

electric heater

BT71 Temperature sensor, external return line

GP10 Circulation pump, Heating medium

QN10 Reversing valve, Hot water/Heating medium

EB1 Additional heat

EB1 Immersion heater

KA1 Auxiliary relay/Contactor

EB101 Heat pump system

BP4 Pressure sensor, condensor

BT3 Temperature sensor, return line

BT12 Temperature sensor, condenser supply line

BT15 Temperature sensor, ﬂ uid pipe

EB101 Heat pump

FL10 Safety valve

GP12 Charge pump

HQ1 Particle ﬁ lter

QM1 Drain valve, Heating medium

QM31 Shut-oﬀ valve, Heating medium, Flow

QM32 Shut oﬀ valve, Heating medium, Return

QM43 Shut-oﬀ valve

EQ1 Cooling system

BT64 Temperature sensor, cooling supply line

CP6 Single jacket accumulator tank, cooling

GP13 Circulation pump, cooling

QN12 Reversing valve, Cooling/Heating

Miscellaneous

CM1 Expansion vessel closed, Heating medium

CP5 Buﬀ er vessel

CP10 Accumulator tank with hotwater heating

EB20 Immersion heater

FL2 Safety valve, Heating medium

KA1 Auxiliary relay/Contactor

RN10 Trim valve

1) Included in and supplied with controller

2) Included in and supplied with accessory

3) Included in indoor unit

Installation with indoor unit HSB60, tank PT300, controller RC-HY20/40 with step controlled additional heat before reversing valve for hot water and cooling function (4 pipe system)

-FL2

-CM1

-EB101

-QM43

-GP12

-EB101

-HQ1

-BT1

-AA25

-BT50

-AA25

-BT63

-KA1

-EB1

-RN10

-CP10

-AA25-QN10

-AA25-BT7

-AA25-BT6

-GP13

-AA25

-BT64

-EQ1-QN12

-EQ1

-EB1

-CP6-CP6

-QM1

-EZ101

-BT12

-BT3

-BT15

-BP4

-FL10

-QM31

-QM32

-HQ1

-XL14

-XL13

-XL1

-XL2

-EZ102

NOTE

Not all components are shown in this

outl ine di agram.

Controller (AA25) starts and stops the heat pump (EB101) to meet the heating and hot water demand.

At simultaneous heating and hot water demand, the reversing valve (AA25-QN10) switches periodically between the climate system and the water heater/accumulator tank (CP10). When the hot water heater/accumulator tank is fully charged, the reversing valve switches to the climate system.

Additional heat (EB1) is turned on automatically when the heating demand exceeds the heat pump capacity. This is used for both heating and charging hot water.

The additional heat can also be used for water heater when a higher temperature is required than the heat pump can produce.

During cooling operation, the reversing valve (EQ1-QN12) switches to the cooling system (EQ1). If several simultaneous demands occur while there is a cooling demand, the system reacts differently. In the event of a hot water demand, the reversing valve switches back and hot water is produced until the demand is fulﬁ lled. In the event of a heating demand, the reversing valve switches periodically between cooling and heating. If the cooling demand is met, the reversing valve switches back to basic mode (heating/hot water).

Pipe installation

Indoor unit HSB60, tank PT300, controller RC-HY20/40 with step controlled additional heat after reversing valve for hot water and cooling function (4 pipe system)

-EB20

-KA1

-FL2

-CM1

-EB101

-QM43

-GP12

-EB101

-HQ1

-BT1

-AA25

-AA25 -AA25

-RN10

-CP10

-AA25-QN10

-AA25-BT7

-AA25-BT6

-BT25

-EB1

-CP5

-GP10

-KA1

-BT71

-EB1

-AA25

-GP13

-BT64

-EQ1-QN12

-EQ1

-BT50

-CP6-CP6

-QM1

-EZ101

-BT12

-BT3

-BT15

-BP4

-FL10

-QM31

-QM32

-HQ1

-XL14

-XL13

-XL1

-XL2

-AA25

-EZ102

NOTE

Not all components are shown in this

outl ine di agram.

This installations alternative is suitable for more complex installations with a focus on comfort.

Controller (AA25) starts and stops the heat pump (EB101) to meet the heating and hot water demand of the installation.

At simultaneous heating and hot water demand the reversing valve (AA25-QN10) switches periodically between the climate system and the water heater/accumulator tank (CP10). When the hot water heater/accumulator tank is fully charged, the reversing valve switches to the climate system.

Additional heat (EB1) is turned on, automatically when the heating demand exceeds the heat pump capacity.

Immersion heater (EB20) in the water heater/accumulator tank is used during the time to produce hot water if the heat pump is used for heating at the same time.

The immersion heater (EB20) can also be used if a higher temperature of hot water is required than the heat pump can produce.

Pipe installation

Installation with indoor unit HMK60 for hot water and cooling function (4 pipe system)

XL14

XL13

-BP4

-BT15

-BT3

-CM1

-EB1

-BT7

-BT6

BT71

XL4 XL3

XL1 XL2

-QN10

-BT63

-BT64

-QN12

-GP12

-BT12

XL10

-BT25

AA25

-XL14

-XL13

Controller (AA25) starts and stops the heat pump (EB101) to meet the heating and hot water demand. At simultaneous heating and hot water demand, the reversing valve (QN10) swithes periodically between the climate system and the hot water heater. When the hot water heater is fully charged, the reversing valve swithes to the climate system.

Additional heat (EB1) is turned on automatically when the heating demand exceeds the heat pump capacity. This is used for both heating and charging water heater.

The additional heat can also be used for water heater when a higher temperature is required than the heat pump can produce.

Cooling is controlled by the sensor BT64, and the reversing valve (QN12) swithes to the cooling system. If several simultaneous demands occur while there is a cooling demands, the system reacts differently. In the event of a hot water demand, the reversing valve switches back and hot water is produced until the demand is fulﬁ lled. In the event of heating demand, the reversing valve switches periodically between cooling and heating. If the cooling demand is met, the reversing valve switches back to basic mode (heating/hot water).

+ 258 hidden pages

Mitsubishi Heavy Industries HSB60, FDCW60VNX-APT300, HMK60, RC-HY20, RC-HY40 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual