SERO BWA-SS-6 User manual

GROUND SOURCE HEAT PUMP - ALL IN ONE-
MODEL:
BWA-SS-6 BWA-SS-8 (230V/50HZ)
BWA-SS-8 BWA-SS-10
BWA-SS-12 BWA-SS-16 (3x400V/3/50HZ)
-Please read this operating manual before using the Heap Pump-
USER MANUAL
TYDP

List of contents
1 Important Information……………………………………………………..3
1.1 Safety Instructions
………………………………………………………………..3
1.1.1 Installation and Maintenance
……………………………………………………...3
1.1.2 Modification of
System Components
……………………………………………….3
1.1.3 Safety V alve
……………………………………………………………………...3
1.2 Pr otective Measur es
…………………………………………………………..…..3
1.2.1 Pr eventing Corr osion
..…………………………………………………………...3
2 Unit Description ……………………………………………………….…….3
2.1 Heat Pump Principle
………………………………………………………..….4
2.2
Auxiliary Heater – Electric Heating Element
…………………………….....….5
2.3
W ater Heater
……………………………………….…………………….....….5
2.4 Contr ol Panel
………………………………………………………….….....….6
2.4.1 Functions
………………………………………………………….……….....….7
3 Operating Instructions ……………………………………….……….....…..7
3.1 General Information
……………………………………….……….....………..7
3.1.1 Menu Navigation
……………………………………….………....................…..7
3.1.1.1 Display of curr ent operating mode
…………………………………….....…..7
3.1.1.2 Symbols
..…………………………………………………………...….....…..8
3.1.2 Menus
……………………………………………………………...….....…...9
3.1.2.1 Main Menu INFORMA TION
……………………………………………...….......9
3.1.2.2 Sub-Menu OPERA TION
……………………………………………...….....…..10
3.1.2.3 Sub-Menu HEA T CUR VE
..……………………………………………...….....….11
3.1.2.4 Sub-Menu TEMPERA TURE
………………………………………………...….......12
3.1.2.6 Sub-Menu OPERA TING TIME
…………………………………..……...….....….15
3.1.2.7 Sub-Menu RESET
……………………………......…………………..….....….15
3.1.2.8 Sub-Menu MAN TEST
………………………………………..………...….........15
3.2
Adjustments to be made r egularly
……………………………………...........18
3.2.1 Heat Generation – General
………………………………..………...…..............18
3.2.2 Adjustment of the CUR VE value
………………………………..………...…........18
3.2.3 Adjustment of ROOM value
………………………………..……… ...................19
3.2.4 Adjustment of Par t of the Heat Cur ve
………………………………….... ..........21
3.2.5 Adjustment of the MIN and MAX value
………………………………… .............22
3.2.6 Adjustment of the HEA T STOP value
………………………………….... ............23
3.2.7 Graph of r ecent changes in TEMPERA TURE
…………………………….....…........23
3.3 Maximum Return Line T emperatur e
…………………………….....… .........24
3.4 W arm W ater Pr oduction
………………………………..………….....…........24
3.5 Regular Checks
……………………………………………… …......…........24
3.5.1 Check of Operating Mode
…………………………… ........................…........24
3.5.3 Checking the W ater Level of the Heating System
…………………………...….....25
3.5.4
Checking the Safety V alve
…………………………… .....………………….....25
3.5.5 In the Event of Leakage
……………………………… ......………………….....25
4 T r ouble shooting …………………………….....…………… …...............26
4.1 Alarm Messages
…………………………….....………………….......
5 T
erminology
and Abbr eviations
…………………………….......….......27
6 Default Settings ………………………….....…………………..................28
7 Refer ences………………………….....……… …………....... .................28
3.1.2.5 Sub-Menu INTEGRAL
………………………………………………......….......12
3.1.2.9 Sub-Menu SETTING
………………………………………..………...….........16
3.1.2.10 Sub-Menu LANGUAGE
………………………………………..………...….......18
.........26
3.5.2 Checking the Brine Level of the Brine System
…………....………………...….....24

BWA-SS series
is a climate system for heating houses and apartment buildings as well as industrial properties.
Ground, rock or lakes can be used as the heat exchange source.
BWA-SS series is a complete heating installation for heating and hot water .
3
It is fitted with new design on the market to be developed specifically for heat pumps. A new evaporator enables a
new and impr oved cir culation system for the r efrigerant. The heat pump has an integrated 150 or 200 litr e water tank and
1
Important Information
* If the installation will be shut down during the winter months, the heating system should be emptied of water to
avoid any damage due to fr eezing. (Call your Installation Contractor for help, see ”Refer ences” on page 30).
*
The installation is practically maintenance fr ee, but some monitoring will be r equired (see ”Operating
Instructions” on page 7).
*
Befor e making any adjustments of system parameters, first find out, what the consequences ar e in each case.
* For all service work, please call your installation contractor .
1.1 Safety Instructions
1.1.1 Installation and Maintenance
Installation and commissioning as well as r epairs and maintenance must be carried out by a qualified installation
contractor (see ”Refer ences” on page 30).
Any changes in the electrical installation must be under taken by a qualified electrician (see ”Refer ences”on page
30).
Service work on the r efrigerant cir cuit must be carried out by a qualified r efrige - ration technician (see ”Refer ences”
on page 30).
Danger to Life!
1.1.2 Modification of System Components
The below components can only be modified by a qualified installation contractor:
* Heat Pump Unit
* Refrigerant, warm water and power lines
* Safety V alve
No structural changes may be made to the installation that might af fect the operational r eliability of the heat
pump.
1.1.3 Safety V alve
The following safety instruction s must be observed in r egard of the safety valve of the heating cir cuit and the
overflow pipe:
* Never close the connection between safety valve and overflow pipe.
* When heated, water tends to expand which causes some water to be let out thr ough the overflow pipe. This water
may be hot! The overflow pipe should ther efor e dischar ge into a floor drain placed so that nobody can get hur t.
1.2 Pr otective Measur es
1.2.1 Pr eventing Corr osion
T o eliminate any risks of corr osion, the use of all kinds of aeor osol should be avoided in the pr oximity of the heat
pump. In particular , avoid the following:
Solvents
* Deter gents containing chlorine
* Paint
* Glue
2
Unit Description
In order to get the best results from the climate system BWA-SS series you should read through the
section For the System manager in these Installation and Maintenance instructions.
*

4
BWA-SS series consists of five main components:
and
Brine sytem)
2.1 Heat Pump Principle
A heat pump can exploit the ener gy contained in natural heat sour ces. Or , to put it dif fer ently , the heat
pump ”collects” heat ener gy fr om the heat sour ce. This makes the heat pump a very environmentally friendly and
economically sound alternative for space heating.
a. A hose filled with liquid (Brine system) is immersed into a lake, dug into the gr ound or sunk into the r ock. The
Brine sytem absorbs the heat ener gy of the heat source so that the temperatur e of the water cir culating in the
hose is raised a few degr ees.
b The Brine system is cir culated to the heat pump’ s evaporator . Here the heat ener gy of the Brine system causes the
r efrigerant, cir culating thr ough the evapo rator , to boil and turn into a gas – it evaporates.
c The r efrigerant, having absorbed heat ener gy , is cir culated to the compr essor wher e pr essur e and temperatur e
ar e raised.
d The r efrigerant continues to the condenser . When condensing, it r eleases heat ener gy to the heat carrier ,
cir
culating thr ough the condenser . The temperatur e of the r efrigerant sinks, and it r eturns to its liquid state.
e The heat ener gy r eleased is carried by the heating cir cuit to water heater and radiator or floor heating systems.
f At last the r efrigerant is led thr ough the expansion valve, wher e its pr essur e is r educed, and then con tinues to the
evaporator . The pr ocess is r estar ted.
an immer sion heater . The T ap W ater Stratification system impr oves the ef ficiency of heat transfer by keeping the water in
distinct thermal layers in the water tank.
The unit is fitted with a r egulating computer , which is contr olled over a graphic display unit.
Heat is distributed thr oughout the house over a hydr onic heating system r eferr ed to as low temperatur e
system with a maximal water temperatur e to radiators ( Feed line temperature) of 65°C. Most of the heating
demand is taken car e of by the heat pump (compressor unit), the auxiliary heater being star ted only when
demands exceed available heat pump capacity.
a. Heat Pump Unit
Rotory or Scr oll-compr essor
Stainless steel heat exchangers
Cir culation pumps for heating systems
V alves and safety equipment for r efrigerant system, complete with necessary electric components
b. W ater Heater
150 or 200 litr e
Lined
with copper sheet against corr osion or made of stainless steel
Maintenance fr ee as no anode is used
c. Reversing V alve
Opening or closing the connection to water heater accor ding to operating mode: heating or warm water pr oduction
d. Auxiliary Heater
3 / 6 / 9 kW electric heating element
Three-step capacity contr ol
Fitted on supply line
Delivers back-up heat in case of gr eat heat demand that exceeds heat pump capacity
Star ts automatically , pr ovided operating mode “AUTO” has been selected
e. Regulating Equipment
The r egulating system contr ols heat pump components (compressor , cir culation pumps, auxiliary heater and
r eversing valve). Based on data r eceived fr om sensors, it star ts or stops heat pump operation and determines
whether he a ting or warm water shall be pr oduced. The system consists of:
Control computer with graphic display unit
T emperatur e sensors (outside air ,room, feed line, r eturn line

The heat pump has thr ee separate liquid cir cuits
Brine sytem cir cuit
– a water-based mixtur e (brine) transporting ener gy fr om heat source to heat pump.
Refrigerant cir cuit
– cir culating inside the heat pump. Thr ough evaporation, compr ession and condensation it
absorbs ener gy fr om the Brine sytem and r ele ases it to the heat carrier . The r efrigerant is chlorine-fr ee.
Heating cir cuit
– water transporting heat ener gy to the heating system (radia tors/floor coils) and the water
heater .
5
Brine system circuit
Brine system
2.3 W ater Heater
BWA-SS series comes with a built-in water heater holding 150 or 200 litr es. The temperatur e of the water sent to
the water heater is contr olled by the r egulating pr essur e switch and cannot be adjusted. W arm water pr oduction is
stopped when the r egulating pr essur e switch r eaches its operating pr essur e, which corr esponds to about 50-55°C warm
water temperature. At r egular intervals the water in the water heater will be heated to as much as 65°C as a pr eventive
measur e against bacteria. The pr eset interval is 14 days. For mor e information, please r efer to ”W arm W ater Pr oduction”
on page 24.
.
The heat pump has three separate liquid circuits
2.2 Auxiliary Heater – Electric Heating Element
The auxiliary heater – an electric heating element fitted on the supply line – has thr ee capacity steps:
Step 1 = 3 kW
Step 2 = 6 kW
Step 3 = 9 kW

BWA-SS
6
2.4 Contr ol Panel
The contr ol panel of
BWA-SS series
featur es a graphic display , five contr ol buttons .
Beside the contr ol panel you will find the User’ s Manual, a shor t description of how to incr ease and r educe r oom
temperature, and a label with name and phone number of dealer .
Graphic display
ROOM 20
OPER. WARMWATER
MONDAY
11:30
1

7
2.4.1 Functions
3 Operating Instructions
3.1 General Information
3.1.1 Menu Navigation
3.1.1.1 Display of curr ent operating mode
Control Buttons
˄ influence key ˅
The control computer is operated with the help of a user friendly menu system that is displayed on the control
panel. There is a main menu and several sub-menus accessible from the main menu. The menus are
described in detail further down.
To be able to select the desired menu and increase or reduce preset values, you will use the five buttons.
• One button pointing upwards marked with a up arrow
• One button pointing downwards marked with a down arrow
• One button pointing to the right marked with a right arrow
• One button pointing to the left marked with a left arrow
• One button pointing to the ON/OFF
The right-hand button on the control panel is used to open the desired menu.
The left-hand button is used to return to the previous menu.
The up and down buttons are used to navigate between the parameters of a menu.
A cursor (arrow) on the left-hand side of the display indicates which menu can be opened.
The up and down buttons are also used if you wish to increase or reduce a preset value.
When display at the interface, press button Right for 5 seconds for locking the display (will show a symbol
of lock.) All buttons are not available after lock is active, until press button Right for 5 seconds to open the lock˗
if the lock is active and then power supply cut off, the lock will be open after power supply resume.
During normal operation, the following information will be displayed:
• Desired (preset) room temperature
• Date / time / timer
heat pump or auxiliary heater or both (see ”Symbols”).
• Which operating mode has been selected.
• Whether there is a heating demand or not. If there is, there will
also be symbols telling which heat source is working,
ROOM 20
OPER. WARMWATER
MONDAY
11:30
1
ROOM 20
OPER. WARMWATER
MONDAY
11:30
1

8
Symbols
For you to know at a glance the actual operating mode of the heat pump, each of the following symbols
will be shown in the lower part of the display depending on which part of the unit is working:
1. The heat pump is running.
2. The auxiliary heater is activated.
3. There is a room heating demand.
4. Warm water is being produced.
5. Indicates the status of warm water production. If the symbol is empty, warm water temperature is
under the setting temperature. It does not mean that there is no water in the water tank.
The tank is always full.
6. If the symbol is full, warm water temperature reached to the setting temperature.

9
3.1.2 Menus
3.1.2.1 Main Menu INFORMA TION
T o open the main menu INFORMA TION, pr ess the right- or left-hand button once.
T
o select the desir ed sub-menu, use the up or down button. Open the menu by pr essing the right-hand button once.
T o r eturn to the main menu, pr ess the left-hand button once.
SETTING
INFORMATION
OPERATION
HEATCURVE
TEMPERATURE
INTEGRAL
OPER.TIME
RESET
MAN TEST
LANGUAGE
Sub
menus
Return
Open
next
menu
OPERATION
Running mode: Room heating 1, Room heating 2,Water tank heating.
HEATCRVE
The setting of this submenu will affect the room temperature; CURVE is program that adjusts feed water
temperature according outdoor ambient temperature, factory setting is ambient temperature 0ഒas feed water
temperature 40ć, that is CURVE =40; the value of CURVE is adjustable from 22ćto 56ć. How to change
the slope—two points decide one beeline, point one is (0,40), the other point could be (18,24), the point
(18,24) is not changing when changing the slope, because factory setting is that heat pump stops when
outdoor ambient temperature is 18ć, so the feed water temperature should be 24ć.
TEMPERATURE
Temperature items setting.
INTEGRAL
Integral is a program to set the startup time and distance between compressor and electrical heater, to set
stop conditions of compressor and electrical heater. This program is depends on the "feed water temperature
degeneratiaon" and Time.
SETTING
OPER.TIME
To calculate how much time have been running by compressor, electrical heater.
RESET
Return to factory settings: press button Right to go back all factory settings.
MAN TEST
Engineer testing
To set Daytime,Time, electrical heater timing, water tank heating timing, whole unit timing, Emergency mode 1,
Emergency mode 2, auxiliary electrical heater.

10
3.1.2.2 Sub-Menu OPERA TION
ROOMHEAT1
᧶
ROOMHEAT2
᧶
WARMWATER+ROOMHEAT1
᧤
ROOMHEAT2
᧥᧶
HEATPUMP
᧤
ON or OFF
᧥
ON᧶select ON, compressor is running normally.
OFF᧶select OFF, only switch off compressor᧨the others are running normally.
ADD.HEAT
᧤
ON or OFF
᧥
ON᧶select ON, electrical heater is running normally.
OFF᧶select OFF, only switch off electrical heater᧨the others are running normally.
If you wish to change operating mode:
a. Open the main menu INFORMATION by pressing the right-hand button once. You will find the cursor at
thesub-menunamedOPERATION.
b. Open the OPERATION menu by pressing the right-hand button once. You will find the cursor at the
previously selected operating mode.
c. Select the desired mode by pressing either the ”up” or ”down” button.
Return to the main menu by pressing the left-hand button twice.
After select mode ROOMHEAT 1, the heat curve is that feed water temperature determined by outdoor
ambient temperature. At the time, ROOMHEAT2 be of no effect.
After select ROOMHEAT 2, feed water temperature is adjustable from 10 to 65ć, factory setting is 45ć. At
the time, the system is controlled by time and flow temperature, ROOMHEAT 1 is of no effect (not affected by
ambient temperature)
Auto mode: select (¥) water tank heating and room heating at the same time, enter Auto mode. After enter
this mode, water tank heating has the priority (compressor restart when in water tank heating must follow
program ‘CMPDI TEMP’). When water tank get to setting temperature, three -way valve will change its
direction to room heating automatically. If the water tank temperature decrease, three-way valve’s direction will
go back to water tank heating.
OPERATION
ROOMHEAT 1
HEATPUMP
ADD.HEAT
ON
ON
WARMWATER
ROOMHEAT 2

3.1.2.3 Sub-Menu HEA T CUR VE
T
his menu is used for making adjustments that af fect the r oom temperature. For mor e information, please r efer
to ”Adjustments to be made r egularly” on page 20.
T able 1: Menu– HEA T CURVE
Menu
T
ext Description Ad
j
ustable b
y
CURVE The value enter ed shows the temperatur e of the water
to be distributed to the radiators (feed water
temperatu
r
e
)
when the outside air temperatu
r
e is 0°C.
used(see ”Adjustment
of
CURVE value” on p18. )
MIN Adjustment of value for lowest feed water temperatur e
allowed.
used(see ”Adjustment
of
MIN & MAX value” on p22.
)
MAX Adjustment of value for highest feed water
temperatur e allowed.
used(see ”Adjustment
of
MIN & MAX value” on p22.
)
CURVE 5 Adjustment of r oom temperatur e when the outside air
tempe
r
atu
r
e is +5°C.
used(see ”Adjustment
o
f
CURVE value” on p18. )
CURVE 0 Adjustment of r oom temperatur e when the outside air
tempe
r
atu
r
e is 0°C.
used(see ”Adjustment
o
f
CURVE value” on p18.
)
CURVE – 5 Adjustment of r oom temperatur e when the outside air
tem
p
e
r
atu
r
e is -5°C.
used(see ”Adjustment
o
f
CURVE .
)
HIGH T STOP When outdoor ambient temperature is higher than
this setting, the hot water to room will be stopped.
this setting is adjustable
from 0 to 50ć,factory
setting is 50ć.
LOW T STOP When outdoor ambient temperature is lower than
this setting, the hot water to room will be stopped.
this setting is adjustable
from 0 to -50 ć,factory
setting is -50ć.
value” on P18
LOW T° STOP
-50
HEATCURVE
CURVE
MIN
MAX
CURVE 5
CURVE 0
CURVE -5
40
22
70
0
0
0
HIGH T° STOP
50
11

12
3.1.2.4 Sub-Menu TEMPERA TURE
This menu shows the dif fer ent temperatur es of the heating system. All temperatur e changes r egister ed over
the
last 60 minutes ar e stor ed in the contr ol system and can be viewed in the shape of graphs.
WARMWT ˖water tank temperature, the first value is water tank real temperature, the second value in
‘ ( )’ is water tank setting temperature; the setting temperature is adjustable from 20 ćto 62ć,factory
setting is 45ć.
ROOM˖Display room air temperature.
RETURN˖Display return water temperature.
FEED˖
1.the first value is real feed water temperature, the second value in ‘( )’ is feed water setting
temperature in ROOMHEAT 1 mode, it is adjusted by slope of Curve according to outdoor ambient
temperature. Factory setting is that feed water temperature is 40ćwhen outdoor ambient temperature is
0ć, that is to say Curve is 40, the value of Curve is adjust from 22ćto 56ć. This setting is only
available for Room heating, not for water tank heating.
2. under ROOMHEAT 2 mode, FEED setting can be adjust directly from 20 to 65ć,factorysetting
is 45ć; this setting is only available for room heating, not for water tank heating.
OUT˖Display outdoor ambient temperature.
When at item WARMWT or RETURN or FEED, orBRINEINorBRINEOUT, press button Right
BRINEIN:
Display the temperature of Brine system when entering the heat pump.
BRINEOUT:
Display the temperature of Brine system when leaving the heat pump.
5 seconds willdisplay the information as follow kind of chart, to check how the temperature is going
in one hour.
3.1.2.5 Sub-Menu INTEGRAL
INTEGRAL 00
OFF
CMP.A
ADD 1
- 60 ( 00)
( - 60) - 500
00
ADD 2 ( - 500)
- 550
ADD 3 ( - 550) - 600
TEMPERATURE
OUT
ROOM
FEED.
RETURN
WARMWT
BR . IN
25
28
45
30(65)
30(50)
BR . OUT
15
18

13
Integral (DM) is a program to set the startup time and distance between compressor and electrical
heater according to heat demand and heat output, to set stop conditions of compressor and electrical
heater. This program is depends on the "feed water temperature degeneratiaon" and Time. To enter this
menu operator can change the factory setting:
Menu Text Description Adjustable by
OFF When the value (testing) reaches the value setting by
use
r
,thes
y
stem will be closed.
USER
CMP.A
When the value (testing) reaches the value setting by
user, the compressor will be start-up. And the value
(testing) under the value (setting), the compressor will
be closed.
USER
ADD1 When the value (testing) reaches the value setting by
user, the ADD 1 will be start-up. And the value (testing)
under the value (setting), the ADD1 will be closed.
USER
ADD2 When the value (testing) reaches the value setting by USER
ADD3 When the value (testing) reaches the value setting by USER
user, the ADD2will be start-up. And the value (testing)
under the value (setting), the ADD2 will be closed.
user, the ADD 3 will be start-up. And the value (testing)
under the value (setting), the ADD3 will be closed.
Instruction of Integral (DM)
Degree Minute = The corresponding value of temperature difference between the Feed water
and the Desired water X Running time ( through integral to change; every minute for a cumulative)
For example:
(Under desired temperature)
Feed water temperature decrease 1ć(under desired temperature) in 1 minutes,
Degree Minute=-10 X 1= -10;
Feed water temperature continue decrease 2ć(under desired temperature) in another 1 minutes,
Degree Minute=-10 X 1 + (-10) = -20;
Feed water temperature continue decrease 3ć(under desired temperature) in another 1 minutes,
Degree Minute=-10 X 1 + (-20) = -30;
Feed water temperature continue decrease 4ć(under desired temperature) in another 1 minutes,
Degree Minute=-10 X 1 + (-30) = -40;
……………………
Temperature difference between the feed water
and the desired water ( ć)The corresponding value
-31 ~ -40 -40
-21 ~ -30 -30
-11 ~ -20 -20
-1 ~ -10 -10
1~10 10
11 ~ 20 20
21 ~ 30 30
31 ~ 40 40

14
Before the Degree Minute reach - 60 (adjustable) ,the compressor is off, but when the Degree Minute
reach - 60 (adjustable) ,the compressor automatic start, and the flow temperature will begin increase.
(Higher than desired temperature) when the actual water supply temperature reach / higher than the
desired temperature, the DM will be changed.
For example : the DM was cumulated to -160 in this time.
1 minutes later when the Feed water temperature higher than desired temperature for 1ć.
10X1=10 , Degree Minute= -150;
Another 1 minutes later when the Feed water temperature higher than desired temperature for
2ć. 10X1=10, Degree Minute= -140;
Another 1 minutes later when the Feed water temperature higher than desired temperature for
3ć. 10X1=10, Degree Minute= -130;
Another 1 minutes later when the Feed water temperature higher than desired temperature for
4ć. 10X1=10, Degree Minute= -120;
……………………
Compressor off when Degree Minute reach 0 (adjustable) .
The relationship between compressor (on and off) and DM,the relationship between heater(on and off)
and DM.
The above chart is describing that running of compressor and electrical heater depend on Integral
Compressor ‘s Degree Minute are :-60 (on) and 0(off),A0=-60 (on)
Heater 1’s Degree Minute are : ‘-500’(on) and ‘-60’(off), A0+A2=-60-440=-500 (on)
Heater 2’s Degree Minute are : ‘-500’(on) and ‘-500’(off)
Heater 3’s Degree Minute are : ‘-600’(on) and ‘-550’(off)

15
3.1.2.6 Sub-Menu OPERA TING TIME
3.1.2.8 Sub-Menu MAN TEST
3.1.2.7
Sub-Menu RESET
Reset to factory setting value. Press the right button for 5 seconds.
The Sub-Menu MAN TEST contains ADD1 / ADD2 / ADD3 / HEAT PUMP / 3 WAY /
BRINE PUMP / WARM PUMP ; You can choose ON / OFF to control the each part for testing.
How to enter the Sub-Menu MAN TEST:
You need to choose the "MAN TEST"on the main menu ( INFORMATION)
And press the right button for 3 seconds .
Menu
T
ext Descri
p
tion Ad
j
ustable b
y
HEATPUMP Total operating hours of heat pump since installation.
Operatin
g
time will not be reset to ze
r
o.
(3kW) since installation. Operating time will
ADD1 Total operating hours of auxiliary heater
ADD2
ADD3
will not be reset to ze
r
o.
(6kW) since installation. Operating time will
Total operating hours of auxiliary heater
will not be reset to ze
r
o.
(9kW) since installation. Operating time will
Total operating hours of auxiliary heater
will not be reset to ze
r
o.
can not
can not
can not
can not
OPERATION TIME
HEATPUMP
ADD 1
0 H
0 H
ADD 2 0 H
ADD 3 0 H
ADD 1
3 WAY
WARM PUMP
MAN TEST
OFF
OFF
OFF
OFF
ADD 2 OFF
ADD 3 OFF
HEATPUMP OFF
Notice: when installer to test the components function in submenu ‘MAN TEST’, it recommend that
start the water pump before start the compressor and electrical heater.
BRINE PUMP

16
3.1.2.10 Sub-Menu SETTING
How to enter the Sub-Menu SETTING:
Press the right button.Then "SETTING"menu can be seen.
You need to choose the "SETTING"on the main menu ( INFORMATION).
EMERGENCY 1
EMERGENCY 2
OFF
ON -25
SETTING
TIMER 1 ON
TIME
X
11:30
DATE TIME MON
TIMER 1 OFF X
TIMER 2 ON X
TIMER 2 OFF X
ADD.HEAT TIMER
(ON)21:00-08:00(OFF)
WARMWT TIMER
(ON)18:00-22:00(OFF)
CMPDIF TEMP
5
DATE TIME
To display or adjust day of week.
TIME
To display time, or adjust time.
Double timer function:
TIMER1ON ˖¥9˖00 TIMER1 OFF
¥1 2˖00
TIMER2ON ˖¥14˖00 TIMER2 OFF
¥18˖00
TIME ON
When choose mark “¥”, the Auto start function is active, choose “×”for cancel this function. If this function
is active, every day during the timing, the heat pump will work normally.
TIME OFF
When choose mark “¥”, the Auto stop function is active, choose “×”for cancel this function. If this function
is active, every day during the timing, the heat pump will stop normally.
ADD.HEAT TIMER ¥( ON) 21:00-----9:00 (OFF)
When choose mark “¥”, the Auto start function of electrical heater is active, choose “×”for cancel this
function. If this function is active, every day electrical heater will start and stop automatically according to the
setting.
WARMWATER TIMER ¥( ON) 21:00-----9:00 (OFF)
When choose mark “¥”, the Auto start function of water tank heating is active, choose “×”for cancel this
function. If this function is active, every day water tank heating will start and stop automatically according to the
time setting.
CMPDIF TEMP:
compressor restart determined by water temperature degeneratiaon of water tank. This
ć, and factory setting is 5ć.
setting is only
for water tank heating, it is adjustable from 3 to 15
ADD DELAY
30 M
ADD START
50
STERILAZE
HDO
OFF
Emergency mode 1˄emergency 1˅:˄ON or OFF˅ˈfactory setting is OFF(after select emergency mode,
the unit will continuously execute the same objective (room heating only, water tank heating only, or auto)
When select ON, compressor will be switch off, only electrical heater, water pump or other temperature
protection are available. When in water tank heating, the electrical heater will instead of compressor; when in
room heating mode, the electrical heater will runs depends on Integral; when in room heating mode 1, the
electrical heater will runs depends on Integral; when in room heating mode 2, the electrical heater
automatically starts, unless operator off the electrical heater.
EMERGENCY1(ONorOFF)
When heat pump is ON, water tank timer function makes sure the water tank heating has priority.
If the heat pump is ON with mode WARMWATER only:
Then if set water tank timer to be: 6:00(ON) ---12:00(OFF), the water tank heating will be available only during
clock 6:00 –12:00.
If the heat pump is ON with mode Auto (WARMWATER+ROOMHEAT):
Then if set water tank timer to be: 6:00(ON) ---12:00(OFF), the water tank heating will be available only during
clock 6:00 –12:00, the rest time will turn to room heating.

Emergency mode 2˄emergency 2˅:˄ON or OFF˅ˈfactory setting is OFF: (after select emergency mode,
the unit will continuously execute the same objective (room heating only, water tank heating only, or auto)
When select this mode, compressor will stop determined by outdoor ambient temperature, the
temperature setting is from 0 to -50 degree adjustable, factory setting is -25 degree, only electrical heater,
water pump or other temperature protection are available. When in water tank heating, the electrical heater will
instead of compressor; when in room heating mode, the electrical heater will runs depends on Integral; when in
room heating mode 1, the electrical heater will runs depends on Integral; when in room heating mode 2, the
electrical heater automatically starts, unless operator off the electrical heater.
EMERGENCY2(ONorOFF)
External signal controls heat pump start and stop: there two signal connections, when external relay
switch on them, the compressor, electrical hearer and motor will stop running. After switch off them, the
compressor, electrical heater, motor will restart and work as previous setting.
17
HDO ON(OFF)
1. Switch it on the input signal on the wire HDO would block the compressor, fan and additional heater˗
2. Switch it off, the input signal would block nothing.
ADD DELAY : ( 30 to 90 Min adjustable , factory setting is 30M )
when heating the water tank (after only runs compressor 10 minutes ), if two conditions are fulfilled,
the electrical heater 1 will start automatically: 1) the current water temperature more than 50 (this settingć
is adjustable from 45ćto 70ć); 2) the water temperature can not increase 1ćin a certain time (from 3 to 90
minutes adjustable, default is 30 minutes); after start electrical heater 1, if the water temperature can not
ćincrease 1 in a certain time, then electrical heater 2 will start automatically; after start electrical heater 2,
if the water temperature can not increase 1 ćin a certain time, the electrical heater 3 will start
automatically; then electrical heater work until water get the setting temperature.
ADD START : ( 45 to 70 degree adjustable , factory setting is 50 degree )
If the water tank’s temperature always less than 60ć(default) and last 360 hours(period), the heat
pump will start the sterilize function ( the electrical heater start as soon as water get to 50ć), until
water temperature get to 60ć(default) and last 10 minutes( default); or if 3 hours later the water
temperature still can not reach 60ć, the sterilize function will exit.
Sterilize water temperature:˄60ć--90ćadjustable˅default is 60ć
Sterilize duration :˄10—90minutes˅default is10 minutes
Sterilize period :˄7----99days˅default is 15 days
STERTLIZE
PERIOD
DURATION
15 D
120 M
WATER TEMP 60
STERILIZE:

18
3.2 Adjustments to be made r egularly
3.2.1 Heat Generation - General
r
CURVE CC
40 18
C
0
5-5
24
32
40
48
56
64
18
Feed line
temperature
Heat curve
Relation of outside
air temperature to
Feed line temperature
Outside air temperature
Most settings will be made by the installation contractor in connection with installation. Adjustments to be
made regularly by the user are the following:
• Selection of operating mode
• Adjustment of desired room temperature by changing the ROOM value.
• Adjustment of heat curve
• Adjustment of maximum and minimum values for feed line temperature
The indoor temperature should be adjusted by changing the heat curve of the installation. The control
computer determines the correct temperature of the water to be distributed to the heating system based on
the heat curve. The heat curve will be adjusted in connection with installation. It must be adapted later on,
however, to obtain a pleasant indoor temperature under any weather condition. A correct heat curve
reduces maintenance and saves energy.
The heat curve determines the feed line temperature depending on the outside air temperature. The lower
the outside air temperature, the higher the feed line temperature. In other words, the temperature of the
water feed to the radiators will increase exponentially as the outside air temperature falls.
If you select CURVE in the sub-menu named HEAT CURVE, a diagram will be displayed. It represents the
relation of outside air temperature to feed line temperature. This relation is referred to as heat curve.
• Adjustment of the value for HIGH T STOP or LOW T STOP is possible. (Please r efer to ”Adjustment of HIGH T STOP
or LOW T STOP value” on p. 25). .
Adjustment of the CURVE value
The heat curve will be adjusted by the CURVE value. This value indicates the feed line temperature
to the radiators at 0°C outside temperature. At outside air temperatures lower than 0°C, the water sent to
the radiators will be warmer than 40°C.
At outside temperatures higher than 0°C, the water will be colder than 40°C. When you increase the
CURVE value, the heat curve will become steeper and when you reduce it, it will become flatter.
This is the most energy and cost efficient way to set the indoor temperature and should therefore be
used for long term temperature settings. If you wish to make a temporary change of temperature, you
can simply change the ROOM value (see ”Adjustment of the ROOM value” on page21).
3.2.2
3.1.2.11 Sub-Menu LANGUAGE
Language selection : How to enter the Sub-Menu of LANGUAGE:
Press the right button.Then "LANGUAGE"menu can be seen.
You need to choose the "LANGUAGE"on the Main menu ( INFORMATION ).
Use Up and Down botton to select the language ,and press Right button to confirm.
LANGUANG
ENGLISH
DEUTSCH

19
3.2.3 Adjustment of ROOM value
As mentioned above, you can also adjust heat curve and indoor temperatur e by changing the ROOM value. If
you use ROOM value to adjust the heat curve, the gradient does not change, i.e. it doesn’t become steeper or
flatter . Instead, the whole curve is moved by 1°C for every degr ee by which the ROOM value is changed.
The r elation feed line temperatur e to outside air temperatur e will not be af fected. The feed line
temperatur e will be incr eased or r educed by the same number of degr ees all along the heat curve. See the
following diagram.
Adjustment of the ROOM value should only be used for temporary changes of the indoor temperature. For long
term settings, the CURVE value should be adjusted as this is the most ener gy and cost efficient way to set the indoor
temperature.
For adjusting the heat curve, please r efer to the chapter ”Adjustment of the CURVE value” on page 20.
Change of value for CURVE
CURVE C
C
40 18
C
0
5-5
24
32
40
48
56
64
18
Factory setting of ROOM value is 20°C.
Chan gi ng the ROOM value
CURVE C
C
40 18
C
0
5-5
24
32
40
48
56
64
18
You need to choose the "room"on the Sub-menu ( TEMPERATURE ),then press the right button.
Use UP and DOWN button to adjust the "ROOM CURVE".
IfyouwishtochangetheCURVEvalue:
1.Open the main menu INFORMATION by pressing the right-hand button once. You will find the cursor
at the sub-menu named OPERATION
2.Press the ”down” button to move the cursor to the sub-menu called HEAT CURVE.
3.Press the right-hand button once to open the menu. You will find the cursor at the parameter CURVE
4.Open the selected parameter by pressing the right-hand button once.
5.Increase or reduce the preset value using the ”up” or ”down” button. You will see from the diagram how
the gradient of CURVE changes.
Press the left-hand button three times to return to the main menu.
How to change the slope—two points decide one beeline, point one is (0,40), the other point could be
(18,24), the point (18,24) is not changing when changing the slope, because factory setting is that
heat pump stops when outdoor ambient temperature is 18ć, so the feed water temperature should be
24ć.
CURVE is program that adjusts feed water temperature according outdoor ambient temperature,
factory setting is ambient temperature 0ćas feed water temperature 40ć, that is CURVE =40; the
value of CURVE is adjustable from 22ćto 56ć.

20
CURVE C
C
40 18
C
0
5-5
24
32
40
48
56
64
18
CURVE C
C
40 18
C
0
5-5
24
32
40
48
56
64
18
When enter ‘Room heat’ mode, user could control compressor and electrical heater through
regulate heat curve or DM (degree minute).
under a certain ambient temperature ,the time start of compressor is determined by degree
minute(DM).
Now we are giving two situations to explain.
1. ‘start quickly’ is determined by FEED(heat curve)
Suppose now the feed water temperature is 25ć; regulate the heat curve to let the setting of water
temperature to be a higher value such as 55ć,that is FEED25(55). At that time, DM (degree
minute) decrease -30 per minute, when the DM reach -60, compressor will start right away.
(Notice: if the water temperature setting is lower than feed water temperature DM would turn
to positive number, and then compressor does not start. Of course, you also can regulate the DM to be
near the value for compressor start, such as -20.
turn it up
2. ‘start slowly’ is determined by FEED(heat curve)
Suppose now the feed water temperature is 25ć,if regulate the heat curve to let the setting of water
temperaturetobealowervaluesuchas30ć, that is FEED25(30); at that time, the DM would decrease -
10 per minute, the time to reach -60 is becoming longer, only after some time, then
compressor can start. You also can regulate the DM to be more far away from the value for compressor
start, such as (-100).
curve is a little flat
When enter room heat mode, it needs customer to regulate the heat curve or DM (degree minute)
according to own request.
If you wish to change the ROOM value:
1 Pr ess the ”up” or ”down” button once to open the ROOM value for adjustment.
2 Incr ease or r educe the pr eset value using the ”up” or ”down” button so that the desir ed r oom temperatur e is
r eached. W ait for 10 seconds or pr ess the left-hand button once to r eturn to the main menu.