Mitsubishi Heavy Industries HSB60-W User manual

USER’S MANUAL
MITSUBISHI HEAVY INDUSTRIES
Air to Water Heat Pump using R32 refrigerant
Hydrolution (HM)
HSB60-W
FDCW60VNX-W
PT300/RC-HY20-W/RC-HY40-W
PSA012B842
English：Original instruction
This heat pump complies with EMC Directive 2014/30/EU,
LV Directive 2014/35/EU.
CE marking is applicable to the area of 50 Hz power supply.

1
Safety precautions
General 6
Installation data 6
Serial number 6
RC-HY20/40-An excellent choice 7
Quick guide 8
The control module-the heart of the house 9
Control module’s function 9
Contact with RC-HY20/40 9
Maintenance of RC-HY20/40 13
RC-HY20/40-at your service 14
Set the indoor climate 14
Set the hot water capacity 22
Get information 25
Adjust the heat pump 27
Disturbances in comfort 37
Manage alarm 37
Troubleshooting 37
Additional heating only 38
Maintenance 39
HSB60-W 39
PT300 39
FDCW60-W 41
Technical data 43
Checklist 44
Glossary 45
Table of Contents

2
Safety precautions
SAFETY PRECAUTIONS
J Please read these “SAFETY PRECAUTIONS”
before starting to use this product and use
the product appropriately according to the
instructions.
J The precautions provided here are
classified into “ DANGER” and “
CAUTION”. The “ DANGER” sections
describe potentially hazardous situations
that may lead to serious outcomes such as
death and sericus injuries if the product is
mishandled. Note, however, that depending
on the situation, the items listed in the “
CAUTION” sections do also have the
potential of causing serious outcomes.
Both warnings and cautions provide you
important information related to safety ;
please make sure to observe them.
JThe symbols used throughout the main
text of this manual have the following
meaning.
marks mean danger, alarm, and
caution. The specified prohibited
item is described in the triangle.
The left mark means “Shock hazard
alarm”.
marks mean prohibited items.
The specified prohibited item is
described in the circle or in the
vicinage.
marks mean compulsory action
or instruction. The specified
prohibited item is described in the
circle. The left mark means “Earth is
needed”.
The user’s manual should be read
carefully.
There is information included in the
user’s manual and/or installation
manual.
A service personnel should be
handing this equipment with reference
to the installation manual.
NOTE
This indicates danger to machine or
person.
Caution
This indicates important information
about what you should observe when
maintaining your installation.
TIP
This indicates tips on how to facilitate
using the product.
JAfter you have read the manual, always
store it where other users can refer to at
any time. If a new owner takes over the
system, make sure to pass this manual.
This heat pump complies with EMC
Directive 2014/30/EC.
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 should
not play with the appliance. Cleaning and
user maintenance should not be made by
children without supervision.
This in accordance to applicable parts of
the low voltage directive 2014/35/EC, LVD.
HMK series, HSB series and its relevant
outdoor unit and tanks are also intended
for use by experts or trained users in
shops, hotels, light industry, on farms and
in similar environments.
CE marking is applicable to the area of 50
Hz power supply.
Following precaution is only for R32.
This equipment uses flammable
refrigerants. If the refrigerant
is leaked, together with an
external ignition source, there is a
possibility of ignition.
WARNING
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must be observed when disposing the
appliance.
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defrosting process or to clean, other
than those recommended by the
manufacturer.
t5IFBQQMJBODFTIBMMCFTUPSFEJOBSPPN
without continuously operating ignition
sources (for example: open flames, an
operating gas appliance or an operating
electric heater.
t%POPUQJFSDFPSCVSO
t#FBXBSFUIBUSFGSJHFSBOUTNBZOPU
contain an odour.
t5IFBQQMJBODFTIBMMCFTUPSFEJOB
well-ventilated area where the room
size corresponds to the room area as
specified for operation.

3
Safety precautions
t5IFTUBGGJOTFSWJDJOHPQFSBUJPOTNVTU
hold the national qualification or other
relevant qualifications.
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that has a minimum area of 4.0m2.
* This value is for split system. In the case
of multi system, see the installation sheet
of outdoor unit.
INSTALLATION PRECAUTIONS
DANGER
Make sure to have the installation
done by your dealer or a specialist.
If you install by yourself and the unit is not
properly installed, water leakage, electric
shock, fire and injuries caused by the drop
of the unit may occur.
The preventive measures that the
density of leaked refrigerant does not
exceed the limit is necessary in case of
installing the unit in a small room.
The leakage of refrigerant may cause oxygen
deficiency accident. Consult your dealer for
the measures.
RC-HY20/40 must be installed via an isolator
switch with a minimum breaking gap of 3
mm.
If the supply cable is damaged, only MHI, its
service representative or similar authorised
person may replace it to prevent any danger
and damage.
CAUTION
Make sure to perform grounding
work.
Do not connect grounding wire to any
gas pipe, water pipe, conductor rods or
telephones. Incomplete grounding may
cause electric shock through leakage of
electricity.
Make sure to mount a leakage
breaker.
Otherwise electric shock may occur. Please
consult your dealer or a specialist for the
mounting.
Do not mount where flammable gas
leakage can happen.
If leaked gas stagnates in the unit, the gas
may cause fire.
Make sure to layout the drain pipe so
that the water is completely drained.
Otherwise, water may leak and wet
household goods.
OPERATION PRECAUTIONS
DANGER
Do not expose yourself directly to
radiator or any other heating device
for a long time.
It may cause low temperture burn injury.
Do not set water temperature too
high when under-floor heating
application is used.
It may cause low temperature burn injury.
Do not expose yourself directly to
cooled air flow for a long time or
cool too much.
It may be cause of deconditioning or
health disorder.
Do not insert fingers or sticks into
the air inlet or outlet grilles.
It may cause injuries because of the fan
rotating at high speed.
If the unit has been submerged under
water due to a natural disaster such as
flood or typhoon, consult your dealer
before using it again.
If you use it as it stands, it may lead to
failure, electric shock or fire.
If any abnormal symptom (scorched
flavor etc.) is found, cut off the power
and stop the operation.
Then consult your dealer.
If you use it as it stands, it may lead to
failure, electric shock or fire.
One of the causes of poor cooling
or poor heating may be refrigerant
leakage. Please consult your dealer.
If the repair requires additional refrigerant,
determine the service with the service
staff. The refrigerant of air conditioner is
not toxic. Normally the refrigerant does
not leak. But if it leaks and contacts
fire such as fan heater, space heater or
cooking heater, it may produce toxic
chemicals.

4
Safety precautions
Do not insert fingers or sticks even if
air blower does not operate.
It may suddenly operate and cause injuries.
CAUTION
Do not use for particular purpose such
as the storage of food, animals and
plants, precision apparatus and arts etc.
Storage goods may degrade.
Do not operate the button with wet
hand.
It may cause electric shock.
When a burning appliance is used
together with the unit, ventilate frequently.
If ventilation is not sufficient, it may cause
oxygen deficiency accident.
Do not place a burning appliance where
the airflow from the unit is directly
blown in case fan coil is used.
It may cause the imperfect combustion of
the equipment.
Make sure that the unit installation
foundation is not damaged due to long-
term use.
If it is left to stand, the unit may fall down
causing injury.
Do not lean on the unit.
It may overturn or fall if it is placed on
unstable surface and if may cause injury.
Do not wash the unit with water, nor
place a vase with water on the unit.
It may cause a electric shock or ignite.
Do not install the unit where the airflow is
directly blown towards animals and plants.
They may suffer from adverse effect.
Before cleaning, make sure to stop
operation and cut off the power.
The fan inside rotates at high speeds.
Make sure to use an appropriate fuse.
Using steel wire or copper wire may
lead to failure or fire.
Do not store a flammable spray etc. near
the unit, nor blow directly to the unit.
It may lead to fire.
Before maintenance, make sure to
stop operation and cut off the power.
The fan inside rotates at high speeds.
When the unit isn’t used for a whole,
cut off the power.
The accumulation of dirt may lead to heat
generation or fire. But, before resuming
the operation, turn on the unit for six hours
beforehand to ensure safe operation.
Do not place any other electric appliances
or household goods below or around the
air conditioner.
Lekage from the unit may lead to failure or
contamination.
Do not touch the aluminum fin.
Otherwise it may lead to injuries.
Do not clean the inside of the indoor unit
by yourself. Make sure to consult your
dealer or user inquiry counter specified by
our company.
If you select incorrect detergent or
improper method, resin parts may be
damaged and lead to water leakage. If
the detergent is dropped on the electric
component or motor, it may lead to failure,
smoking or ignition.
Do not place objects on the outdoor unit,
nor mount on it.
It may lead to injuries resulting from falling.
During the operation or maintenance,
do not use an unstable footrest.
It may lead to injuries resulting from falling.
During thunderstorm, stop the
operation and turn off the switch.
A lightning strike may lead to failure.
After several seasons of operating,
inspections and maintenances are
required except routine care and cleaning.
Accumulated dirt or dust inside the indoor
unit may cause odor, water leakage
through the clogging of water discharging
pipe for dehumidification. Specialized
information and skills are required for
inspections and maintenances. Therefore
contact your dealer.

5
Safety precautions
Do not place any object around the
outdoor unit, nor allow fallen leaves to
pile up.
Fallen leaves may induce insects and
worms in them, and they may lead to
failure, ignition or smoking by touching
electric components.
Do not use with inlet/outlet grilles or
other panel removed.
Otherwise, it may lead to injuries.
Do not operate or stop the unit by
using the power supply switch.
It may lead to fire or water leakage.
If auto restart is set effectively, the fan
may rotate suddenly causing injuries.
Do not strain the remote control cord.
A part of core wire may be cut off
causing electric leakage.
Do not use water heater etc. near the
indoor unit or remote control.
If a Vapor-generating appliance is used
near them, it may lead to water drop
causing electric leakage or short circuit.
Do not use the unit where powder or
fiber is floating.
Fine powder or fiber passing through the
air filter may stagnate inside the unit and
lead to electric leak or short circuit.
Do not place objects under the unit
which must avoid being exposed to
water.
Over 80 percent humidity or the clogging of
drain pipe may damage them through dew
dropping.
PRECAUTIONS FOR RELOCATION OR REPAIRING
CAUTION
Never perform any modification.
Contact your dealer for repairing.
Improper repairing may lead to water
leakage, electric shock or fire. Normally
the refrigerant does not leak. But if it leaks
and contacts fire such as fan heater, space
heater or cooking heater, it may produce
toxic chemicals. When repairing refrigerant
leakage, determine the service with the
service staff so that the repair has been
finished without fault.
If it is required to relocate and reinstall the
unit, consult your dealer or a specialist.
Improper installation of air conditioning unit
may cause water leakage, electric shock
and/or fire.
Before repairing or checking the
indoor unit, be sure to turn off “Indoor
unit power supply breaker”.
It can result in electric shock or injury due
to rotation of indoor unit fan if you perform
check or repair with the “Indoor unit power
supply breaker” turned on.
Place the panels removed for
repairing or checking on the stable
spot.
Otherwise, dropping or falling may lead to
injury.
This manual is only for outdoor units
connected to HSB series.
When you connect other indoor units to
outdoor units, please refer to other manual.

6
General
General
Hydrolution is a system for heating, cooling and producing hot water for small houses. The system consists of an outdoor unit, which
utilises the energy in the outdoor air and sends it to the indoor unit, which takes care of the regulation and heat distribution in the house.
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NOTE
This Product contains uorinated greenhouse gases.
Do not vent R32 into the atmosphere: R32 is a uorinated greenhouse gas with a Global Warming Potential (GWP) = 675.
Refer to a label on outdoor unit for the weight of uorinated greenhouse gas and CO2 equivalent.
Installation data
Completed by the installation engineer when the installation is installed
Installation data and installation check list on page 44 must EH¿OOHGLQE\WKHLQVWDOOHULQRUGHUIRUWKHZDUUDQW\WRDSSO\
Installation data
Controller RC-HY20/40
Serial number
Installation date
Installer
Indoor unit
Outdoor unit
Accessary
Type of docking
No. Name Default
settings
Set
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Serial number
Serial number must always be given
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applicable regulations.
Date Signed

7
General
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Serial number
CAUTION
Always give the product's serial number when reporting a
fault.
RC-HY20/40 – An excellent choice
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units.
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engage automatically if something unexpected should occur or
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Excellent properties for RC-HY20/40:
ŶEasy to read display
The control module has an easy-to-read colour display with
easy-to-understand menus that facilitate setting a comfortable
indoor climate.
ŶChecks all of your installation
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the heat pumps which means that all important settings can be
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heating installation and support many accessory functions.

8
Quick guide
Quick guide
Navigation
Ok button (confirm/select)
Back button (back/undo/exit)
Control knob (move/increase/reduce)
A detailed explanation of the button functions can be found on
page 9.
How to scroll through menus and make different settings is
described on page 11.
Set the indoor climate
2X
INDOORCLIMAT E
HOT WATER
MY INSTALLATION
INFO
12 34
20ºC
10ºC
30ºC
-5ºC
TEMPERATURE HEATING 1.1.1
?
The mode for setting the indoor temperature is accessed by
pressing the OK button twice, when in the start mode in the
main menu. Read more about the settings on page 14.
Increase hot water volume
2X
1X
INDOORCLIMAT E
HOT WATE R
MYINSTALLATION
INFO
TEMPORARY LUX 2.1
one time increase
3 hrs
6 hrs
12 hrs ?
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button twice. Read more about the settings on page 22.
In event of disturbances in comfort
If a disturbance in comfort of any type occurs there are some
measures that can be taken before you need to contact your
installer. See page 37 for instructions.

9
The control module – the heart of the house
The control module – the heart of
the house
Control module's function
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a complete installation. Among other things, it controls the heat
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Contact with RC-HY20/40
Display unit
A
B
C
D
E
F
Display
Status lamp
OK button
Back button
Control knob
Switch
GUSB port
There is a display unit on the front of the control module,
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mode.
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installation to your needs.
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A Display
Instructions, settings and operational information are shown on
the display. The easy-to-read display and menu system, make it
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comfort and get the necessary information.
B Status lamp
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C OK button
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the start guide.
D Back button
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E Control knob
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F Switch (SF1)
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the control module. In this mode, the compressor in the heat
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control module display is not illuminated and the status lamp
lights yellow.
G USB port
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name.
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10
The control module – the heart of the house
Menu system
The menu system’s four main menus are shown in the display
as well as certain basic information.
INDOORCLIMAT E
HOT WATER
MYINSTALLATION
INFO
22o
-5o
54o
Indoor temperature - (if room sensors are installed)
Hot water temp.
Information about
operation
Outdoor
temperature
Temporary lux (if
activated)
Estimated amount of
hotwater
Menu 1 - INDOOR CLIMATE
Setting and scheduling the indoor climate. See page 14.
Menu 2 - HOT WATER
Setting and scheduling hot water production. See page 22.
This menu only appears if a water heater is installed in the
system.
Menu 3 - INFO
Display of temperature and other operating information and
access to the alarm log. See page 25.
Menu 4 - MY INSTALATION
Setting time, date, language, display, operating mode etc. See
information in the help menu or user manual.
Symbols in the display
The following symbols can appear in the display during
operation.
Symbol Description
This symbol appears when there is
information to be noticed in menu 3.1.
These two symbols indicate whether the
compressor in the outdoor unit or additional
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controller.
These functions will be blocked for example,
when either of the operation mode is blocked
in menu 4.2, when blocking of either function
is scheduled in menu 4.9.5, or when an alarm
for blocking the operation occurs.
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This symbol appears if periodic increase or
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This symbol indicates if "holiday setting" is
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This symbol indicates if the controller has
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7KLVV\PEROLQGLFDWHVLIFRROLQJLVDFWLYH

11
The control module – the heart of the house
INDOOR CLIMATE 1
temperature
scheduling
advanced
25.0O 1.1
INDOORCLIMAT E
HOT WATER
MYINSTALLATION
INFO
Marked mainmenu
Menu number – marked sub menu Name and menu number – main menu
Symbol –
main menu
Status information – sub
menus
Name – sub menusSymbols – sub menus
Operation
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Selecting menu
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it and then pressing the OK button. A new window opens with
sub menus.
Select one of the sub menus by marking it and then pressing
the OK button.
Selecting options
economy
comfort mode 2.2
normal
luxury
Alternative
economy
smart control
comfortmode 2.2
normal
luxury
In an options menu the current selected option is
indicated by a green tick.
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1.  0DUNWKHDSSOLFDEOHRSWLRQ2QHRIWKHRSWLRQVLVSUH
VHOHFWHGZKLWH
2.  Press the OK button to confirm the selected option.
The selected option has a green tick.
Setting a value
time & date 4.4
time
day
year
month
24 h
12 h
date
Values to be changed
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1.  0DUNWKHYDOXH\RXZDQWWRVHWXVLQJWKHFRQWURO
knob.
2.  3UHVVWKH2.EXWWRQ7KHEDFNJURXQGRIWKHYDOXH
EHFRPHVJUHHQZKLFKPHDQVWKDW\RXKDYHDFFHVVHG
the setting mode.
3.  Turn the control knob to the right to increase the
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4.

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VHW7RFKDQJHDQGUHWXUQWRWKHRULJLQDOYDOXHSUHVV
WKH%DFNEXWWRQ

12
The control module – the heart of the house
Help menu
In many menus there is a symbol that indicates that extra
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7RDFFHVVWKHKHOSWH[W
1. 
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2.

Press the OK button.
7KHKHOSWH[WRIWHQFRQVLVWVRIVHYHUDOZLQGRZVWKDW\RXFDQ
scroll between using the control knob.
Use the virtual keyboard
Different keyboards
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NH\ERDUGLVDYDLODEOH
Depending on the menu, you can gain access to different
character sets which you can select using the control knob. To
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has one character set, the keyboard is displayed directly.
:KHQ\RXKDYH¿QLVKHGZULWLQJPDUN2.DQGSUHVVWKH2.
button.
Scroll through the windows
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to scroll between the windows.
Current menu
window
Number of windows
in the menu
Scroll through the windows in the start guide
Current menu
window
Number of windows
in the menu
1.

Turn the control knob until one of the arrows in the top left
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2.  Press the OK button to skip between the steps in the start
guide.

13
The control module – the heart of the house
Equipment Normal Output
(W)
Approx.
annual
con-
sump-
tion
(kWh)
Opera-
tion
Standby
TV
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Digital box
2SHUDWLRQKGD\6WDQGE\KGD\ 11 10 90
'9'2SHUDWLRQKZHHN 15 5 45
79JDPHVFRQVROH2SHUDWLRQKZHHN 160 2 67
5DGLRVWHUHR2SHUDWLRQKGD\ 40 1 50
Computer incl. screen
2SHUDWLRQKGD\VWDQGE\KGD\ 100 2 120
%XOE2SHUDWLRQKGD\ 60 - 175
6SRWOLJKW+DORJHQ2SHUDWLRQKGD\ 20 - 58
&RROLQJ2SHUDWLRQKGD\ 100 - 165
)UHH]HU2SHUDWLRQKGD\ 120 - 380
6WRYHKRE2SHUDWLRQPLQGD\ 1500 - 365
6WRYHRYHQ2SHUDWLRQKZHHN 3000 - 310
Dishwasher, cold water connection
2SHUDWLRQWLPHGD\ 2000 - 730
Washing machine
2SHUDWLRQWLPHVGD\ 2000 - 730
7XPEOHGULHU2SHUDWLRQWLPHVGD\ 2000 - 730
9DFXXPFOHDQHU2SHUDWLRQKZHHN 1000 - 100
(QJLQHEORFNKHDWHU
2SHUDWLRQKGD\PRQWKVD\HDU 400 - 50
Passenger compartment heater
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([DPSOH$IDPLO\ZLWKFKLOGUHQOLYHLQDKRXVHZLWKÀDW
screen TV, 1 digital box, 1 DVD player, 1 TV games console, 2
computers, 3 stereos, 2 bulbs in the WC, 2 bulbs in the
bathroom, 4 bulbs in the kitchen, 3 bulbs outside, a washing
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HQJLQHEORFNKHDWHU N:KGRPHVWLFHOHFWULFLW\\HDU
Energy meter
&KHFNWKHDFFRPPRGDWLRQVHQHUJ\PHWHUUHJXODUO\SUHIHUDEO\
once a month. This will indicate any changes in power
consumption.
Maintenance of RC-HY20/40
Regular checks
Your heat pump requires minimal maintenance after
commissioning. On the other hand, it is recommended that you
check your installation regularly. For more information
UHJDUGLQJWKHPDLQWHQDQFHRIKHDWSXPSVDQGRUDFFXPXODWRU
WDQNVZDWHUKHDWHUVUHIHUWRWKHUHOHYDQWPDQXDO
If something unusual occurs, messages about the malfunction
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alarm management on page 37.
Saving tips
Your heat pump installation produces heat and hot water. This
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Factors that affect the energy consumption are, for example,
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of the house and whether the house has many large window
surfaces. The position of the house, e.g. wind exposure is also
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,I\RXDFWLYDWH+RWZDWHU(FRQRP\OHVVHQHUJ\LVXVHG
Power consumption
If you increase one degree of the desired indoor temperature,
increases power consumption by approx. 5%.
Domestic electricity
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household has an approximate annual consumption of 5000
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EHWZHHQN:K\HDU

14
RC-HY20/40 – at your service
RC-HY20/40 – at your service
Set the indoor climate
Overview
Sub-menus
temperature
INDOOR CLIMATE 1
advanced
scheduling off
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on the display to the right of the menus.
"temperature" Setting the temperature for the climate
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climate system.
"scheduling" Scheduling heating and cooling. Status
information "set" is displayed if you set a schedule but it is not
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VFKHGXOHLVDFWLYHDWWKHVDPHWLPHDVWKHVFKHGXOHWKH
YDFDWLRQIXQFWLRQLVSULRULWLVHGDFWLYHGLVSOD\VLIDQ\SDUWRI
WKHVFKHGXOHLVDFWLYHRWKHUZLVHLWGLVSOD\VR൵
"advanced6HWWLQJRIKHDWFXUYHDGMXVWLQJZLWKH[WHUQDO
FRQWDFWPLQLPXPYDOXHIRUVXSSO\WHPSHUDWXUHURRPVHQVRU
and cooling function.
Menu 1.1 - temperature
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the display by a thermometer for each system.
Choose heating or cooling and then set the desired temperature
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Set the temperature (with room sensors installed and
activated):
temperature heating 1.1.1
temperature cooling 1.1.2
heating
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'HIDXOWYDOXH
cooling (accessory is required)
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'HIDXOWYDOXH
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climate system is controlled by a room sensor.
CAUTION
A slow heat-releasing heating system, such as f or example,
underf loor heating, may not be suitable f or control using the
heat pump's room sensor.
To change the room temperature, use the control knob to set
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by pressing the OK button. The new temperature is shown on
the right-hand side of the symbol in the display.
Setting the temperature (without room sensors
activated):
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'HIDXOWYDOXH
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increase or reduce the indoor temperature, increase or reduce
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setting by pressing the OK button.

15
RC-HY20/40 – at your service
Menu 1.3 - temperature scheduling
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scheduled for each weekday.
You can also schedule a longer period during a selected period
YDFDWLRQLQPHQX
scheduling 1.3
cooling off
heating off
Menu 1.3.1 - heating
Increases or decreases in the accommodation temperature can
be scheduled here for up to three time periods per day. One
step is usually enough to change the room temperature by one
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accommodation temperature.
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WHPSHUDWXUH&LVVHWGXULQJWKHWLPHSHULRGV
SCHEDULING HEATING 1.3.1
activated
schedule 2
system
schedule 3schedule 1
all
mon
tues
wed
thur
fri
sat
sun
21:30 - 06:00 20.5°
Time period AdjustingDay
Activated Schedule System
Conflict
Schedule: The schedule to be changed is selected here.
Activated: 6FKHGXOLQJIRUWKHVHOHFWHGSHULRGLVDFWLYDWHG
KHUH6HWWLPHVDUHQRWD൵HFWHGDWGHDFWLYDWLRQ
System (RC-HY40 only): Which climate system the
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displayed if more than one climate system is present.
Day: Select which day or days of the week the schedule is to
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the time for that day must be reset by setting the start time to
the same as the stop time. If the line "all" is used, all days in
the period are set for these times.
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degree change of the indoor temperature depends on the
heating installation. One step is usually enough but in some
FDVHVVHYHUDOVWHSVPD\EHUHTXLUHG
7KHQHZYDOXHLVVKRZQRQWKHULJKWKDQGVLGHRIWKHV\PERO
in the display.
CAUTION
An increase in the room temperature can be slowed by the
thermostatsfor the radiators or under floor heating.
Theref ore, open the thermostats f ully, except in those rooms
where a cooler temperature is required, e.g. bedrooms.
TIP
Wait 24 hours before making a new setting, so that the
roomtemperature has time to stabilise.
If it is cold outside temperature and the roomtemperature is
too low, increase the curve slope in menu1.9.1.1by one
increment.
If it is cold outside temperature and the roomtemperature is
too high,reduce the curve slope in menu1.9.1.1by one
increment.
If it is warm outside temperature and the room temperature
is too low,increase the value inmenu1.1.1by one increment.
If it is warm outside temperature and the room temperature
is too high, reduce the value inmenu1.1.1by one increment.

16
RC-HY20/40 – at your service
Time period: The start and stop time for the selected day for
scheduling are selected here.
Adjusting: +RZPXFKWKHKHDWLQJFXUYHLVWREHRIIVHWLQ
relation to menu 1.1 during scheduling is set here. If the rooms
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LVVHWLQ&
Conflict: If two settings conflict with each other a red
exclamation mark is displayed.
TIP
If you wishto set similar scheduling for every day of the
week start by filling in“all” and thenchanging the desired
days.
TIP
Set the stoptime earlier thanthe start time sothat the
period extends beyond midnight. Scheduling then stops at
the set stop time the day after.
Scheduling always starts onthe date that the start time is
set for.
CAUTION
Changes of temperature in accommodation take time. For
example, short time periods in combination with underf loor
heating will not give a noticeable dif f erence in room
temperature.
Menu 1.3.2 - cooling
Here you can schedule when cooling is permitted in the
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SCHEDULING COOLING 1.3.2
activated
schedule 2schedule 1
all
mon
tues
wed
thur
fri
sat
sun
21:30 - 06:00 on
Activated Schedule
Time period AdjustingDay Conflict
Schedule: The schedule to be changed is selected here.
Activated: 6FKHGXOLQJIRUWKHVHOHFWHGSHULRGLVDFWLYDWHG
KHUH6HWWLPHVDUHQRWD൵HFWHGDWGHDFWLYDWLRQ
Day: Select which day or days of the week the schedule is to
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the time for that day must be reset by setting the start time to
the same as the stop time. If the line "all" is used, all days in
the period are set for these times.
Time period: The start and stop time for the selected day for
scheduling are selected here.
Adjusting: +HUH\RXVHWZKHQDFWLYHFRROLQJZLOOQRWEH
permitted.
Conflict: If two settings conflict with each other a red
exclamation mark is displayed.
TIP
If you wishto set similar scheduling for every day of the
week start by filling in“all” and thenchanging the desired
days.
TIP
Set the stoptime earlier thanthe start time sothat the
period extends beyond midnight. Scheduling then stops at
the set stop time the day after.
Scheduling always starts onthe date that the start time is
set for.

17
RC-HY20/40 – at your service
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KHDWLQJFXUYHWKHFRQWUROPRGXOHGHWHUPLQHVWKHWHPSHUDWXUH
of the water to the heating system, supply temperature, and
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read off how the supply temperature changes at different
outdoor temperatures here. If there is cooling function, the
VDPHVHWWLQJVFDQEHPDGHIRUWKHFRROLQJFXUYH
Curve coefficient
7KHKHDWLQJFRROLQJFXUYHVKRZVWKHUHODWLRQEHWZHHQWKH
target supply temperature and the corresponding outdoor
WHPSHUDWXUH$VWHHSFXUYHLQGLFDWHVWKDWVXSSO\WHPSHUDWXUH
becomes higher at low outdoor air temperature in heating and
it becomes lower at high outdoor air temperature in cooling.
30
40
50
60
70
°C
- 40 °C- 10
0
10 - 20 - 30
Brantare kur vlutni ng
Supply temperature
Outdoor temperature
Steeper curve slope
The optimum slope depends on the climate conditions in your
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KHDWLQJDQGKRZZHOOLQVXODWHGWKHKRXVHLV
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IXUWKHUDGMXVWPHQW
CAUTION
In the event of making f ine ad justments of the indoor
temperature, the curve must be offset up or down instead,
this is done in menu1.1"temperature".
Curve offset
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outdoor temperature range by this function. This is offset by
&E\DGMXVWLQJVWHSV
The target temperature can be parallel offset in the entire
outdoor temperature range with this function. It is offset by
&E\DGMXVWLQJVWHSV
30
40
50
60
70
°C
- 40 °C
UTETEMPERATU
R
- 10
0
10 - 20 - 30
Förskju ten vär mekurva
Supply temperature
Outdoor temperature
Offset heating curve
Menu 1.9 - advanced
advanced 1.9
curve
external adjustment
min. flow line temp.
room sensor settings
cooling settings
own curve
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DGYDQFHGXVHU7KLVPHQXKDVVHYHUDOVXEPHQXV
"curve6HWWLQJWKHFXUYHVORSHIRUKHDWLQJDQGFRROLQJ
"external adjustment6HWWLQJWKHKHDWFXUYHRIIVHWZKHQ
the external contact is connected.
"min. flow line temp.6HWWLQJPLQLPXPSHUPLWWHGÀRZOLQH
temperature.
"room sensor settings" Settings regarding the room sensor.
"cooling settings" Settings for cooling.
"own curve6HWWLQJRZQFXUYHIRUKHDWLQJDQGFRROLQJ
"point offset6HWWLQJWKHRIIVHWRIWKHKHDWLQJFXUYHRU
FRROLQJFXUYHDWDVSHFL¿FRXWGRRUWHPSHUDWXUH
Menu 1.9.1 - Heating/cooling curve setting
heating curve1.9.1.1
system
outdoor temp. °C
flow temperature °C
cooling curve1.9.1.2
system
outdoor temp. °C
flow temperature °C
heating curve
6HWWLQJUDQJH±
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cooling curve (accessory required)
6HWWLQJUDQJH±
'HIDXOWYDOXH

18
RC-HY20/40 – at your service
Flow line temperature – maximum and minimum
values
This function is used in order to limit max-min supply
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CAUTION
Underfloor heating systems are normally "max flow line
temperature" set between 35 and 45°C. Take care not to
cause low temperature burns in case it is set higher than
35°C.
Must be restricted with underf loor cooling min. f low line
temp. to prevent condensation.
Check the max temperature for your floor with your
installer/floor supplier.
30
40
50
60
70
°C
- 40 °C
UTETEMPERATU
R
- 10
0
10 - 20 - 30
Maximivärde
Minimivärde
Supply temperature
Outdoor temperature
Maximum value
Minimum value
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To select another curve (slope):
1.  Press OK button to access the setting mode
2.  6HOHFWDQHZFXUYH7KHFXUYHVDUHQXPEHUHGIURP
WRDQGWKHELJJHUQXPEHUFXUYHKDVVWHHSHUVORSH
 &XUYHPHDQVWKDWRZQFXUYHPHQXLV
used.
3.  Press OK button to exit the setting.
To read off a curve:
1.  Turn the control knob so that the ring on the shaft
with the outdoor temperature is marked.
2. Press OK button.
3.

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OHIWWRUHDGR൵WKHYDOXHIRUWKHVXSSO\WHPSHUDWXUH
at the selected outdoor temperature.
4.  You can now select to take read outs for different
outdoor temperatures by turning the control knob to
WKHULJKWRUOHIWDQGUHDGR൵WKHFRUUHVSRQGLQJÀRZ
temperature.
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TIP
Wait 24 hours before making a new setting, so that the
roomtemperature has time to stabilise.
If it is cold outdoors and the roomtemperature is too low,
increase the curve slope by one increment.
If it is cold outdoors and the roomtemperature is too high,
lower the curve slope by one increment.
If it is warm outdoors and the room temperature is too low,
increase the curve offset by one increment.
If it is warm outdoors and the room temperature is too high,
lower the curve offset by one increment.
Menu 1.9.2 - external adjustment
external adjustment 1.9.2
climate system 1
climate system 2
climate system 3
climate system 4
°C
°C
* If there is one climate system, display shows "climate system 1" only.
climate system
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room sensor is installed.
'HIDXOWYDOXH
Connecting an external contact, for example, a room thermostat
or a timer allows you to temporarily or periodically increase or
decrease the room temperature while heating. When the contact
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steps selected in the menu. If a room sensor is installed and
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If there is more than one climate system the setting can be
made separately for each system.