Air to Water Heat Pump Series 4

Quick Reference
Air to Water Heat Pump
Series 4
Estia System
Heating
Hot Water
Radiator
Fan coil unit
Heating
Outdoor unit
Hydro unit
Hot water
cylinder
Under floor heating
(Zone Control)
Component Combinations
Hydro Unit
HWS-804XWHM3-**
HWS-804XWHT6-**
HWS-804XWHT9-**
HWS-1404XWHM3-**
HWS-1404XWHT6-**
HWS-1404XWHT9-**
Hydro Unit
HWS-804XWHM3-**
HWS-804XWHT6-**
HWS-804XWHT9-**
HWS-1404XWHM3-**
HWS-1404XWHT6-**
HWS-1404XWHT9-**
HWS804H-**
P
P
P
-
Outdoor Unit
Back Up
HWSHWSHWSHWSHWSHWSHWSHWS1104H-** 1404H-** 1104H8-** 1404H8-** 1604H8-** 1104H8R-** 1404H8R-** 1604H8R-E Heater
~, 3Kw
3N, 6kW
3N, 9kW
P
P
P
P
P
P
P
P
~, 3Kw
P
P
P
P
P
P
P
P
3N, 6kW
P
P
P
P
P
P
P
P
3N, 9kW
Hot Water Cylinder
HWS-1501 HWS-2101 HWS-3001 HWS-1501 HWS-2101 HWS-3001
CSHM3-E CSHM3-E CSHM3-E CSHM3-UK CSHM3-UK CSHM3-UK
P
1
New Features for 4 Series ESTIA:
 A-rated water circulating pump installed in hydro unit
 Hydro unit pump ON / OFF cycling function – to momentarily operate water pump during long periods of





system OFF
Option to use an external cylinder thermostat, on locally supplied hot water cylinders, for domestic hot
water production
Improved control for second remote controller when used with under floor heating
Improved control for ESTIA / boiler connection
New expansion vessel for hydro unit
New compressor for single phase ESTIA outdoor units
Note:
Under floor heating components, fan coil units, radiators, valves and other installation materials must be
procured locally.
Notes on System Design
• The input water temperature to the hydro unit must be 50°C or less. This is especially important if the
hydro unit is used in conjunction with any other external heating source (auxiliary boiler, electric booster
heaters etc.)
Unit failure or water leaks may result if the return water temperature, to the hydro unit, exceeds 50°C
• The minimum flow rate for the circulating water in the heating circuit must meet the following range:­r
8 kW: 13.0 L/minute or more
11, 14 and 16 kW: 17.5 L/minute or more
If the flow rate becomes less than the flow rate specified above, the flow switch in the hydro unit is activated
to stop operation.
When thermostatic devices are used for temperature control a bypass valve must be fitted to the heating
circuit, to ensure the minimum water flow rate is maintained in the event of all thermostatic devices closing
at the same time
• Only use the water pump, built into the hydro unit, to circulate the water in the heating circuit
• The hydro unit back up heaters will operate to assist the heat pump capacity output during low ambient
conditions
• The hydro unit has been designed for indoor installations. Do not install outside where there is a risk of
low ambient conditions. This may cause the water in the pipe work to freeze
• Make the water circuit closed. Never use it as an open circuit.
• To prevent damage to the system the volume of the circulating water must be 20 litres or more. If total
volume of water amount is less than 20 litres, then the unit may not function fully due to the operation of
protective controls.
2
Installation Examples
Heating with Domestic Hot Water
When heating and domestic hot water are used, install a 2-way valve to the pipe to the room
for heating only.
3
Installation Examples (cont.)
2-Zone Temperature Control with Domestic Hot Water
The following shows an example of the 2-zone temperature control.
A buffer tank and a water pump are required for the 2-zone temperature control.
4
Installation example of water circuit:(1)
(2)
(3)
(4)
(5)
(6)
The water circuit for a system without a buffer tank [ (1) , (2) , (3) , (5) ] requires 17.5l/min
(804XWH = 13.0l/min) or more. This water flowing requires 5 or more branches of Floor heating or
Radiators etc.
Less than 5 branches may cause a flow deficiency. In this case, please provide a buffer tank and
secondary pumps, as shown in (4).
Please check how to install the boiler.
5
Hydro Unit – Exploded View
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
Expansion vessel
Hi Pressure switch (4.15 MPa)
Temperature sensor (for Heat pump outlet -TWO)
Pressure sensor
Heat exchanger
Flow switch (13.0 L/min 17.5 L/min)
Temperature sensor (for refrigerant -TC)
Temperature sensor (for water inlet -TWI)
Drain nipple
Water inlet connection
Refrigerant liquid connection
Air relief valve
Pressure relief valve (0.3 MPa (3 bar))
Thermal protector (auto)
Temperature sensor (for water outlet THO)
Thermal protector (Single operation)
A-rated water pump
Backup heater (3 kW, 3 kW x 2, 3 kW x 3)
Manometer
Water outlet connection
Refrigerant gas connection
6
Refrigerant Pipe Lengths and Height
The length and height of the refrigeration pipe must be within the following values.
As long as the Hydro Unit is installed within these ranges, no additional refrigerant is required.
Minimum Pipe Length
HWS-804H-E :
HWS-1104H**-E :
HWS-1404H**-E :
HWS-1604H**-E:
5m
5m
5m
5m
Maximum Pipe Length and Height
H: Max. ±30 m (above or below)
L: Max. 30 m
Note


The maximum pipe length cannot be increased by increasing the
refrigerant charge
The minimum pipe length cannot be decreased by reducing the
refrigerant charge
Refrigeration and Water Cycle Diagrams
Outdoor Unit:
Hydro Units:
HWS-804H-E
HWS-804XWH**-E
Outdoor Units:
Hydro Units:
HWS-1104H**-E, HWS-1404H**-E
HWS-1404XWH**-E
7
Outdoor Units:
Hydro Units:
HWS-1104H8(R)-E, HWS-1404H8(R)-E, HWS-1604H8(R)-E
HWS-1404XWH**-E
Water Piping
WARNING
• Ensure that the heating circuit, and all components of the heating circuit, are installed in accordance with
all National and local regulations
• The water pipes must not be installed where they are exposed to low ambient air temperatures. This is to
prevent the water freezing in the pipes
• Make sure that water pipes have sufficient pressure resistance
(The setting value of the pressure relief valve is 0.3 MPa).
CAUTION
• Do not use zinc plated water pipes. When steel pipes are used, insulate both ends of the pipes.
• The water to be used must meet the water quality standards specified in EN directive 98/83 EC.
Water Circuit
• Install a strainer with 30 to 40 meshes (procure locally) at the
water inlet of the Hydro Unit
• Install drain cocks (procure locally) for water charge and discharge
at the lower part of the Hydro Unit
• The ESTIA system can only be used on pressurised heating
circuits. If the system is used on gravity fed heating circuits then
system failure may occur
8
Water Piping Limitations
Design the water pipe length within the QH characteristics
of the pump (flow-rate and pump head).
The maximum height difference for the water pipes is 7
metres.
Piping to hot water tank (option)
Water supplied to the hot water cylinder is branched by a motorized 3-way valve (procured locally).
Connect the hot water cylinder to port A (open when energized) of the valve.
Piping to 2-zone operation (option)
To perform 2-zone temperature control circulate water using another pump (procured locally) through a
motorized mixing valve (procured locally) and a buffer tank (procured locally).
9
Checking water volume and initial pressure of expansion vessel
The expansion vessel of the Hydro Unit has a capacity of 12 litres.
The initial pressure of the expansion vessel is 0.1 MPa (1 bar).
The pressure of the safety valve is 0.3 MPa (3 bar).
Verify whether the capacity of the expansion vessel is sufficient using the following expression. If the
volume is insufficient, install an appropriate external expansion vessel.
V
Action
< 12 L
Internal Expansion Vessel Size OK
> 12 L
Internal Expansion Vessel Size too small.
Install appropriate external expansion vessel
V:
Necessary total vessel capacity (L)
Ɛ:
Vs:
P1:
Water expansion coefficient at average hot water temperature
Total water volume in the closed system (Do not include Hot Water Cylinder)
System pressure at tank setting position (Mpa_abs*).
(Pipe inner pressure during pump operation before heating device operates = water supply
pressure)
Maximum pressure used during operation at tank setting position (MPa_abs*).
(= safety valve setting pressure)
P2:
* The absolute pressure value (abs.) is obtained by adding the atmospheric pressure (0.1 MPa (1 bar)) to
the gauge pressure.
Water temperature and expansion coefficient (Ɛ)
Water temperature and expansion coefficient (Ɛ)
Expansion rate
Hot water temperature
(°C)
Hot water temperature
(°C)
(Ɛ)
0.0002
0.0000
0.0000
0.0003
0.0008
0.0017
0.0029
0.0043
0.0050
0.0078
0.0100
0
4
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
-
Example
Maximum Hot Water temperature: 55°C
Initial water charge: 0.2MPa
System volume: 200 L.
Calculate Vessel capacity (V):-
V = 0.0145 x
1
200
(0.2 + 0.1)
(0.3 + 0.1)
V = 11.6L
In this case V < 12 L therefore the internal expansion
vessel is sufficient, so there is no need to install an
external expansion vessel.
10
Expansion rate
(Ɛ)
0.0121
0.0145
0.0171
0.0198
0.0229
0.0258
0.0292
0.0324
0.0961
0.0967
-
Pump QH curves
 HWS-804XWHM3-E, T6-E, T9-E

HWS-1404XWHM3-E, T6-E,T9-E
11
Water charging
Charge the water, in the heating circuit, until the pressure gauge shows 0.2 MPa (2 bar).
The hydraulic pressure may drop when the trial run begins. In this case, add water until the hydraulic
pressure returns to 0.2MPa (2 bar)
Air may enter the heating circuit if the hydraulic pressure is low.
Loosen the Air relief valve cap by two turns to release air (see diagram).
Ensure all air is removed from the system. If air remains in the system
then the system operation may STOP.
Note: Due to the design of the electrical back up heater it is not
recommended to add any corrosion inhibitors / additives to the
heating circuit.
Water quality
The water used must satisfy EN directive 98/83 EC.
Piping insulation
It is recommended that insulation is fitted to all pipes, apply insulation with a rating of 20t or more.
12
Electrical Connections
E Box layout
Fuses (AC250V T30A):
F1&F2: Hot water cylinder electric heater supply
F3&F4: Back up heater 1 (3kW)
F5&F6: Back up heater 2 (3kW)
F7&F8: Back up heater 3 (3kW)
Fuses (AC250V T3.15A)
F9&F10: A rated water pump
PCB’s:
MCC-1214: TCB-PCMO3E (optional input PCB)
MCC-1217: TCB-PCIN3E (optional output PCB)
MCC-1431: Relay PCB for control of second
water pump, 2 way valve and booster heater
outputs
MCC-1511: Main hydro unit control / interface
PCB
Contactors & Relays:
RY01: Interlock relay – flow switch / back up
heater circuit
RY02: Power contactor for back up heater supply
RY03: Control relay for back up heater s 2 & 3
operation
RY04: Power contactor for back up heater supply
RY05: Power contactor for hot water cylinder
electric heater supply
RY06: Control relay for mixing valve (2 zone)
operation
Power Lines Schematic
13
Control Lines Schematic
Terminal Block Connections
14
Electrical supply / cable specifications
Wiring specifications (power line)
Description
Model Name
HWS
1404H-E
1104H-E
Outdoor
Unit
Power
Power
Input
804H-E
1604H8(R)-E
1404H8(R)-E
1104H8(R)-E
1404XWHM3-E
Hydro
unit
electric
heater
power
Power
input
for
back
up
heater
1404XWHT6-E
1404XWHT9-E
804XWHM3-E
804XWHT6-E
804XWHT9-E
Power input for DHW
cylinder heater
Outdoor – hydro
unit connection
Hydro unit to DHW
cylinder
Current
(Max)
Install
Fuse
Rating
Power
Cable
22.8A
25A
≥2.5mm
2
22.8A
25A
≥2.5mm
2
19.2A
20A
≥2.5mm
2
14.6A
16A
≥2.5mm
2
14.6A
16A
≥2.5mm
2
14.6A
16A
≥2.5mm
2
13A
16A
≥1.5mm
2
13A (13Ax2P)
16A
≥1.5mm
2
Power Supply
220V-230V ~
50Hz
220V-230V ~
50Hz
220V-230V ~
50Hz
380-400V 3N~
50Hz
380-400V 3N~
50Hz
380-400V 3N~
50Hz
220V-230V ~
50Hz
380-400V 3N~
50Hz
380-400V 3N~
50Hz
220V-230V ~
50Hz
380-400V 3N~
50Hz
380-400V 3N~
50Hz
220V-230V ~
50Hz
Connection
Destination
13A (13Ax3P)
16A
≥1.5mm
2
13A
16A
≥1.5mm
2
13A (13Ax2P)
16A
≥1.5mm
2
L, N
-
L1, L2, L3,
N
-
L, N
L1, L2, L3,
N
TB02
L, N
L1, L2, L3,
N
13A (13Ax3P)
16A
≥1.5mm
2
12A
16A
≥1.5mm
2
L, N
TB03
-
-
-
≥1.5mm
2
1, 2, 3
TB01
-
-
-
≥1.5mm
2
1, 2
TB03
Wiring specification (control line)
Connection
Destination
Description
Line Spec
Current (Max)
Length (Max)
Cable Diameter
3 way diverting
valve
2 or 3 wire
100mA
12m
1.0mm
2
7, 8, 9 (TB05)
2 wire
100mA
12m
1.0mm
2
3, 4 (TB05)
2 way valve
3 way mixing
valve (2 zone)
2 zone thermo
sensor (TFI)
HW cylinder
thermo sensor
(TTW)
nd
2 remote
controller
1, 2, 3
or
2, 3, 4
(TB04)
3 wire
100mA
12m
1.0mm
2
2 wire
100mA
5m
1.0mm
2
C, D (TB06)
2 wire +GND
(screened cable)
100mA
5m
1.0mm
2
A, B (TB06)
2 wire
50mA
50m
≥ 0.5mm
15
2
1, 2 (TB07)
Control parts specifications
Component
Power
Current (Max)
3 way diverting valve
AC 230V
100mA
2 way valve
AC 230V
100mA
AC 230V
100mA
3 way mixing valve (2 zone
control)
Specification
Default: 2 wire spring return valve or 3 wire SPST
valve
Option: 3 wire SPDT valve (set DPSW13_1 to ON)
2 wire spring return valve (normally OPEN)
Default drive time = 60 seconds to 90°
3 wire SPST or SPDT with drive times to 90° between
30 and 240 seconds
Output line specifications
Description
External water
pump (P2)
External booster
heater
Output
Current
(Max)
Voltage
(Max)
Cable
Length
(Max)
AC230V
1A
-
12m
AC230V
1A
-
12m
AC230V
DC24V
AC230V
12m
12m
12m
1A
DC24V
12m
0.5A
1A
0.5A
1A
AC230V
DC24V
AC230V
DC24V
12m
12m
12m
12m
Alarm output
No volt contacts
Boiler output
No volt contacts
Defrost output
No volt contacts
Compressor ON
output
No volt contacts
0.5A
1A
0.5A
Comments
Output enabled when outdoor air
temperature is ≤ -20°C
Output enabled when outdoor air
temperature is ≤ -10°C (output trigger
temperature can be changed using FC23)
Input line specifications
Description
External stop control
Cylinder thermostat
Room thermostat (heating)
Input
No voltage
No voltage
No voltage
16
Cable Length (Max)
12m
12m
12m
CAUTION
Earthing arrangements
The Hydro Unit and related equipment must be earthed in accordance with your local and national electrical
regulations.
It is essential that the equipment is earthed to prevent the electric shock and damage to the equipment.
Electrical connection to hydro unit
• Remove the front cover and the electrical box cover from the Hydro Unit.
• The Hydro Unit power cable, for the electrical back up heaters, must be sized in accordance with the
Wiring Specifications table shown on page 15
• Connect the Hydro Unit power cable, for the electrical back up heaters, to Terminal 02 as shown below.
Single Phase Units:
Live conductor – Terminal L1
Neutral conductor – Terminal L2
Earth conductor – Earth terminal
Phase 1 conductor – Terminal L1
Phase 2 conductor – Terminal L2
Phase 3 conductor – Terminal L3
Neutral conductor – Terminal N
Earth conductor – Earth
• Ensure the Hydro Unit power cable, for the electrical back up heaters, is secured using the cable clamp
fitted in the electrical box.
• Ensure the Hydro Unit power cable connection (for the electrical back up heaters) terminals are tight.
Three Phase Units:
Outdoor unit to hydro unit electrical connection
HWS-804H-E
HWS-1104H-E
HWS-1404H-E
HWS-1104H8-E, H8R-E
HWS-1404H8-E, H8R-E
HWS-1604H8-E, H8R-E
• Ensure electrical circuits are isolated before commencing work.
• The Outdoor Unit to Hydro Unit interconnecting cable must be sized in accordance with the “Wiring
Specification” table shown on page 15
• Connect the Outdoor Unit to Hydro Unit interconnecting cable as shown in the diagram above.
• Ensure the Outdoor Unit to Hydro Unit interconnecting cable is secured using the cable clamp fitted in the
electrical box.
• Ensure the Outdoor Unit to Hydro Unit interconnecting cable connection terminals are tight.
17
Electrical connection for external booster heater
CAUTION
• The maximum current available from the booster heater output is 1 A. Do not connect the booster
heater directly to Terminal Block 05 on the Hydro Unit. A separate contactor, supplied locally, must
be used to supply the booster heater.
• The booster heater can be installed only for room heating and cannot be used for hot water supply.
• Install the booster heater downstream of the 3-way valve on the heating circuit side of the installation
• The booster heater is an external heater, supplied locally, used to assist the Hydro Unit during low
ambient conditions.
• The AC230 V 1 A output from the Hydro Unit must only be used to energize an external contactor
(supplied locally).
• The output from the Hydro Unit is only enabled when either the outdoor air temperature to be lower than 20°C.
• Ensure the external booster heater is installed and set up in accordance with all Local, National and
International regulations.
• Connect the external booster heater to the Hydro Unit
according to the diagram shown opposite:• The contactor will energize in the event of low ambient
conditions.
• A separate dedicated electrical supply must be used for the
external booster heater. This must be connected through the
contacts on the field supplied contactor.
Electrical connection for external additional pumps
CAUTION
• The maximum current available from the additional pump output is 1 A. Do not connect the
additional pump directly to Terminal Block 05 on the Hydro Unit. A separate contactor, supplied
locally, must be used to supply the additional pump.
• The Hydro Unit has the facility to connect an additional circulating pump, if required, into the heating
system.
• Install the pump so that its motive power does not affect the internal pump.
• The AC230 V 1 A output from the Hydro Unit must only be used to energize an external contactor
(supplied locally).
• The output for the pump is synchronized with the operation of the main circulating pump (P1) inside the
Hydro Unit.
• Ensure the pump is installed and set up in accordance with all Local, National and International
regulations.
• Connect the additional pump (P2) as shown in the
diagram opposite:• The contactor will energize synchronously with
operation of the main circulation pump (P1).
• A separate dedicated electrical supply must be
used for the pump. This must be connected through
the contacts on the field supplied contactor.
18
3-way valve (diverter) connection
Required Valve Specification:
Electrical Specification: 230 V; 50 Hz; <100 mA
Valve Diameters: Port A, Port B: Ø 1 1/4"
Return Mechanism: 3 types of 3-way valve (diverter) can be used.
Set the 3-way valve in use with the DIP switch SW13-1 on the Hydro Unit board.
Diverter Valve
Type 1
Type 2
Type 3
Description
2-wire spring return
3-wire SPST
3-wire SPDT
DPSW13-1
OFF
OFF
ON
NOTE
Continuous operation of the valve motor at the fully open position is not recommended.
• The 3-way diverter valve is used to select either domestic hot water or zone1 / zone2 space heating
• Connect the 3-way diverter valve in accordance with the diagram below:-
19
3-way mixing valve connection
Required Actuator Specification
Electrical Specification:230 V; 50 Hz; <100 mA
The 3-way mixing valve is used to achieve the temperature differential needed in a 2-zone heating system.
• Connect the 3-way mixing valve in accordance with the diagrams below:-
Hot water cylinder connection (optional)
• Please refer to “Electrical supply/cable specifications” for fuse/cable size and for connection
details.
Electrical Connection (Hot Water Cylinder Electric Heater)
• The electric heater, incorporated in the hot water cylinder, requires a separate supply to the Hydro Unit.
• Connect the hot water cylinder heater electrical supply in accordance with shown below:
Live conductor: Terminal L on Terminal Block 03
Neutral conductor: Terminal N on Terminal Block 03
Earth Conductor: Earth terminal on Terminal Block 03
• Connect the hot water cylinder heater to the Hydro Unit as shown below:
Live conductor to hot water cylinder: Terminal 1 on Terminal Block 03
Neutral conductor to hot water cylinder: Terminal 2 on Terminal Block 03
Earth conductor to hot water cylinder: Earth terminal on Terminal Block 03
 Please ensure that the interconnecting cable, between the Hydro Unit and the hot water cylinder, is
connected to earth at both ends of the cable using the shield wire or the earth conductor of the
interconnecting cable.
Electrical Connection (Hot Water Cylinder temperature Sensor)
• Connect the hot water cylinder temperature sensor as shown below to terminals A & B on Terminal Block
06 in the Hydro Unit.
20
Second Remote Controller Installation (optional)
It is possible to connect a second remote controller to the ESTIA system.
 The remote controller should be installed between 1m to 1.5m above floor level so that the remote
controller measures the average room temperature
 The remote controller must not be installed in areas of:
 Direct sunlight or areas exposed to outside air influences
 Poor ventilation (near windows or other openings)
 External heat sources (above radiators etc.)
 Freezing or refrigerated areas
 The remote controller must be installed in a vertical position
Second Remote Controller Connection
2 core shielded cable – 0.5mm2
or more.
Maximum cable length – 50m
Terminal block TB07, for
remote controller
connection, to hydro unit.
Second remote controller
connections. Terminals A
and B are non polar.
The remote controller can be set as either the header or second remote controller and to measure either
water temperature or room air temperature.
Remote Controller DIPS Switches - Setting

Set one of the remote controllers as the header remote controller (remote controller of hydro unit
is preset as the header remote controller (DPSW1 = OFF)
 Set the DPSW’s on the other remote controller PC boards to “second” (optional remote controller
is preset as “second” – DPSW1 = ON)
For room air temperature control
 set function code 40 (on the hydro unit) to “1”
 Set DPSW2 to ON only on the remote controller used for room temperature measurement
 Either the header or the second remote controller can be set for room temperature
measurement. Please do not set DPSW2 to ON on both the header and follower remote
controllers
21
Input / Output Option PCB’s – Installation
Output Options:
It is possible to connect to outputs, using the TCB-PCIN3E option PCB’s, on the ESTIA hydro unit for the
following functions:
 Alarm output
 Boiler output
 Defrost
 Compressor ON
System alarm & boiler outputs:
Alarm output (L1): Output ON when the system is in alarm/fault conditions. The output is
available through a volt free contact on the TCB-PCIN3E option PCB.
Boiler control output (L2): Output ON when outdoor ambient temperature is less than or equal
to the temperature set in FC23. The output is available through a volt free contact on the TCBPCIN3E option PCB.
Defrost & compressor ON outputs:
Defrost output (L1): Output ON when the system / outdoor unit is under defrost control. The
output is available through a volt free contact on the TCB-PCIN3E option PCB.
Compressor ON output (L2): Output ON when the outdoor unit compressor is operating. The
output is available through a volt free contact on the TCB-PCIN3E option PCB.
22
Volt free contact specification: The volt free contact specification, for the outputs detailed
above, is shown below:
AC230V: 0.5A (maximum)
DC24V: 1.0A (maximum)
Input Options:
It is possible to connect inputs, using the TCB-PCMO3E option PCB’s, on the ESTIA hydro unit for the
following functions:



External room thermostat
External hot water cylinder thermostat
External STOP
External room thermostat:
For heating operation connect the heating contact, on the thermostat, between terminals 1 (HEAT) &
3 (COM) on the option PCB (as shown above).
Control Logic:
Option PCB
Terminal Nos.
1~3
Heating Operation
ON
OFF
CLOSED
OPEN
23
External hot water cylinder thermostat:
Connect the external hot water cylinder thermostat (S1 in the diagram below) to terminals 2 and
3 (COM) on the option PCB.
When the hot water cylinder thermostat contact, S1, is CLOSED then there is a hot water demand and the
system will produce hot water (if all DPSW’s and function codes are set correctly)
External system STOP:
Connect the external STOP signal / contact (S2 in the diagram above) to terminals 1 (HEAT) and 3 (COM)
on the option PCB.
It is possible to set the operating logic of contact S2 (normally OPEN contact, normally CLOSED contact or
pulse input) using function code FC52 and the operating mode of the system, on restart, using FC61 (see
function code list on page 31 for options).
The external stop option can also be used for TEMPO control where an external signal, from the customers
electricity measuring meter, is applied to the option PCB (contact S2 connections). TEMPO control can be
used as part of the price contract provided by French electric power company EDF. The TEMPO control
options are set using FC61.
24
Start up and Configuration
Setting DIP Switches on the Board in the Hydro Unit
• Detach the front cover and the electric parts box cover of the
Hydro Unit.
• Set the DIP switches on the main board.
Switch
No.
Bit
No.
1
2
02
3
4
1
2
10
3
4
1
11
2
3
4
1
12
2
3
4
1
13
2
3
4
Description
Determines the position of the auxiliary boiler in the system installation:
OFF = Boiler positioned after the 3 way valve
ON = Boiler installed before the 3 way valve
Not Used
Used when an external cylinder thermostat is connected:
OFF = external cylinder thermostat not connected
ON = external room thermostat connected
Used when an external room thermostat is connected:
OFF = external room thermostat not connected
ON = External room thermostat connected
Synchronises pump P1 with HP during hot water production:
OFF = Pump P1 synchronised with HP during hot water mode when electric cylinder heater is
energised
ON = Pump P1 continuous operation
Pump P1 control using TO control (heating mode only):
OFF = Pump P1 continuous operation
ON = Pump P1 OFF when TO > 20°C (temperature can be changed using FC9E)
Synchronises pump P2 with pump P1:
OFF = Pump P2 continuous operation (P2 OFF when remote controller switched OFF)
ON = Pump P2 synchronised with pump P1
Pump P1 ON/OFF cycling (during long periods of system OFF):
OFF = Pump P1 normal operation
ON = Pump P1 ON for 10 minutes duration (if system has been stopped for 72 hours)
Used to enable the hydro unit back up heaters:
OFF = Back up heater control enabled
ON = Back up heater control disabled
Used to enable the hot water cylinder electric heater:
OFF = Hot water cylinder heater control enabled
ON = Hot water cylinder heater control disabled
Used to enable the external booster heater output control:
OFF = External booster heater control enabled (TO must be ≤ -20°C)
ON = External booster heater control disabled
Not Used
Used to determine hot water cylinder connection to the system:
OFF = Hot water cylinder connected to the system
ON = Hot water cylinder not connected to the system
Used to enable Zone 1 operation:
OFF = Zone 1 control enabled
ON = Zone 1 control disabled
Used to enable Zone 2 operation:
OFF = Zone 2 control disabled
ON = Zone 2 control enabled
Not Used
Used to determine type of 3 way diverting valve connected to system:
OFF = 2 wire spring return or 3 wire SPST valve connected
ON = 3 wire SPDT valve connected
Used to enable the external boiler output control (used with FC23):
OFF = External boiler output control disabled
ON = External boiler output control enabled
Used to enable system auto restart after system power failure:
OFF = Auto restart control enabled
ON = Auto restart control disabled
Not Used
25
Factory
Position
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
-
Hydro Unit Remote Control
Buttons
1. TEMP. button:
2. SCHEDULE
button:
3. TIME button:
4. SET button:
Changes the set temperature for
each operation mode (ZONE1 /
ZONE2 / HOT WATER) by 1°C
step.
Sets the current time and
scheduled weekly operation.
Changes time for current time
setting and scheduled weekly
operation setting with ▼ and ▲
buttons.
Determines the entered current
time setting and scheduled weekly
operation setting.
5. CL button:
Clears settings for the current time
and scheduled weekly operation.
6. DAY button:
Sets days of the week for current
time setting and scheduled weekly
operation setting.
7. STEP button:
Specifies switching STEP number
in a day for weekly schedule.
8. TEST button:
10. NIGHT button:
Controls the night set back
operation.
11. AUTO TEMP.
button:
12. OPERATE
MODE button:
13. ZONE1, 2
button:
14. ANTI BACTERIA
button:
15. HOT WATER
BOOST button:
16. HOT WATER
button:
17. SELECT button:
Used for test run or service.
9. FROST
PROTECTION
button:
Switches setting temperature
automatically according to outside
temperature. (Pressing this button
long changes the mode to data
setting mode).
Selects ZONE1 / ZONE2 operation
mode (heating).
Turns on/off the zone (floor
heating/radiator/FCU) operation.
Regularly increases the hot water
temperature in the tank for
sterilization. (Pressing this button
long changes the mode to data
setting mode).
Boosts boiling when high tapping
temperature is required temporarily.
Turns on/off hot water operation.
Selects an operation mode when
changing the set temperature of
each operation mode.
Controls minimum operation for
unused period (going out,
absence,etc.) for anti freezing.
NOTE
Some functions are not provided depending on the system specification in use.
26
Display Explanation
18: ZONE1, ZONE2
Display
20: HOT WATER
Description
Lights when floor heater or radiator
is connected (when the system has
floor heater or radiator).
Display
Description
Lights when hot water supply system is
connected (when the system has hot
water supply).
ZONE1 selected for Temperature
to be changed.
Lights when system configured to
have 2 zones.
ZONE2 selected for Temperature
to be changed.
HOT WATER selected for Temperature
to be changed.
Lights during heating operation
using the heat pump
.
Lights when hot water supply operation
is performed by heat pump.
Lights when the internal heater is
energized during heating
operation.
Lights when the internal heater is
energized during hot water supply
operation.
Lights when heating is selected.
Lights during hot water supply operation.
Lights while hot water boost is activated.
Lights when the FROST
PROTECTION button is pressed
and goes out when the button is
pressed again.
Lights when the ANTI BACTERIA button
is pressed and goes out when the button
is pressed again.
Lights when Auto operation is
selected.
Lights when unit enters the data set
mode.
Displays heating set
temperature. (Heating: 20 to 55°C,
Factory setting. Goes out when
Auto operation is selected.
°C
Displays hot water set temperature.
(40 to 75°C, factory setting: 65°C)
Lights when the set temperature or
sensor's water temperature is
displayed with the 7-segment
indicator.
°C
27
Lights when the set temperature or
sensor's water temperature is displayed
with the 7-segment indicator.
Display Explanation (cont.)
19: TIMER
Display
21: CONTROL
Description
Display
Description
Clock: Displays the current time
(AM or PM).
Lights while internal pump (P1) or
external pump (P2) is driven.
Displays days of the week (Sunday
to Saturday).
Lights during backup operation only by
the heater.
Lights when the NIGHT button is
pressed and goes out when the
button is pressed again.
Lights when the unit enters the data set
mode and goes out when the unit exits
the data set mode.
Lights when the unit enters the service
mode and goes out when the unit exits
the service mode.
Lights when night time quiet
operation is set.
Indicates scheduled operation 1
status (including setting time).
Lights when an error occurs and goes
out when the error is cleared.
Displays the scheduled operation
step when the scheduled operation
STEP1-5 program is set.
Lights for two seconds when settings are
completed.
Lights during time setting and
scheduled operation setting.
Lights for two seconds when settings
failed.
Remote Controller – Schedule Timer
It is possible to set up timer control schedules on the ESTIA remote controller (when two remote controllers
are fitted to the ESTIA system the schedule timer is only available from the HEADER remote controller).
A maximum of eight control STEPS can be programmed / scheduled, into the ESTIA remote controller, for
each day of the week.
Using the schedule timer function (see page 42 for example):
 Accessing the schedule timer function:
Press the SCHEDULE
button for 4 second or more to enter the schedule timer setting
mode. The remote controller will show the following display:

Specifying the day for the schedule timer:
Press the Day button to move the ▼symbol, displayed above the days of the week on the remote
controller, to the day when the scheduled timer id to take place. Each press of the DAY button
moves the ▼symbol to the next displayed day. When the ▼symbol is above the required day, press
the SET button to confirm the day to be set

Specifying the control STEP number:
Press the STEP button to specify the control STEP to be set. The STEP selection increments by 1
STEP for each press of the STEP button from STEP 1 to STEP 8.
Steps “C” and “L” are also available by continuing to press the STEP button when the remote
controller display shows STEP 8.
28
If “C” is selected then the control details, already set for the specified day, are copied. These details
can be copied to other days of the scheduled timer
If “L” is selected then all of the control details, set for the specified day, are deleted

Specifying the Step ON/OFF time, operation mode & set temperature:
ON/OFF Time: Use the TIME ▲ ▼ buttons to set the required ON/OFF time for the specified control
step
Operating Mode: To select or deselect the hot water function press the HOT WATER button on the
remote controller
To select or deselect either space heating function press the Zone1, 2 button on the remote
controller
When the function is selected to turn ON (at the specified time) then a numerical temperature is
displayed in the relevant window on the remote controller. When the function is selected to Turn
OFF (at the specified time) then the remote controller will display - - - To select heating press the OPERATE MODE button on the remote controller. When heating is
selected then
will be displayed on the remote controller.
Set Point Temperature: Press the SELECT button, on the remote controller to select either space
Zone 1, Zone 2 or HOT WATER. Press the TEMPERATURE ▲ ▼buttons to set the required
temperature
When the ON/OFF time, operating mode and set point temperature have been entered into the
schedule timer press the SET button to confirm the settings

Leaving the schedule timer function:
When the scheduled timer function has been set for the required days press the SCHEDULE button
to end the schedule setting function. The remote controller display will return to the main display
screen and the
icon, on the remote controller display, will flash. Press the SET button within 5
seconds of the icon flashing – the
icon changes to lit and is continuously displayed. The timer
schedule is now in operation

How to copy a program
When specifying the STEP number (see details above) select “C” and press the SET button. This
copies all of the previously set data for that day.
Press the DAY button to move the ▼ above the new schedule timer day. Press the SET button to
copy the required data into the new day.
Repeat this process for all days required
29
Function Code Access
Set function codes for various operation modes, input using the remote controller.
There are 2 types of settings:1) Hydro Unit function code setting.
2) Remote controller function code setting.
Setting procedure for Hydro Unit function code
1. Press and hold
+
+
buttons for four
seconds or more to enter the hydro unit function code setting mode.
2. Set the function code number with the TEMP. buttons
(CODE No.: 01 to B2).
3. Set data with the TIME buttons
.
4. Press
to confirm the settings.
5. Note that the Clear button
is enabled only before the SET
button is pressed and the function code is changed.
6. Press
to exit the settings menu.
Setting procedure for Remote Controller function code
1. Press and hold
+
+ TEMP.
buttons for four seconds
or more to enter the remote controller function code setting mode.
2. Set the function code number with the TEMP. buttons
(CODE No.: 01 to 13).
3. Set data with the TIME buttons
.
4. Press
to determine the settings.
5. Note that the Clear button
is enabled only before the SET
button is pressed and the function code is changed.
6. Press
to exit the settings menu.
30
Function Code Setting
Function Code Setting
Setting Temperature
Hot Water Operation
Hot Water Temperature
Compensation
Heating Upper Limit - Zone 1
Heating Lower Limit - Zone 1
Heating Upper Limit - Zone 2
Heating Lower Limit - Zone 2
Hot Water - Upper limit
Hot Water - Lower limit
Heat Pump Start Temperature
Heat Pump Stop Temperature
Temperature Compensation Outside Air
Temperature (°C)
Function Code
Setting Address
Hydro
Remote
Unit
Controller
1A
1B
1C
1D
1E
1F
20
21
-
Range
Default
37~55°C
20~37°C
37~55°C
20~37°C
60~80°C
40~60°C
20~45°C
40~50°C
55
20
55
20
75
40
38
45
24
-
-20~10°C
0
Compensation Temperature (K)
25
-
0~15K
3
Operation Time (x10 min)
08
-
3~18
6
Setting Temperature (°C)
09
-
40~80°C
75
Setting Temperature (°C)
Start Cycle (Day)
Start Time (Hour)
Operation Time (min)
Hot water v heating – switching temperature (°C)
External boiler – output ON temperature (°C)
Hot water produced by electric cylinder heater
1 = Hot water priority. Hot water produced by HP
Outside Temperature T1 (°C)
Outside Temperature T2 (°C)
Outside Temperature T3 (°C)
Setting Temperature A @ OAT -20°C (°C)
Setting Temperature B @ OAT T1 (°C)
Setting Temperature C @ OAT T2 (°C)
Setting Temperature D @ OAT T3 (°C)
Setting Temperature E @ OAT 20°C (°C)
Ratio Of Zone 2 In Zone 1 Auto Mode (%)
Auto Curve - Temperature Shift (K)
Function 0=Invalid; 1=Valid
Frost Protection Setting Temperature (°C)
0A
0B
22
23
0D
0C
-
65~80°C
1~10
0~23
0~60
-20~20°C
-20~20°C
75
7
22
30
0
-10
0~1
0
29
2B
2C
2D
2E
2F
30
31
27
3A
3B
-
-15~0°C
0
0~15°C
20~55°C
20~55°C
20~55°C
20~55°C
20~55°C
0~100%
-5~5K
0~1
10~20°C
-10
0
10
40
35
30
25
20
80
0
1
15
33
12
13
-
0~20
0~23
0~3
0
0
1
34
-
0~3
0
73
-
0 ~3
0
26
58
-
3~20K
0~1
5
0
-
0E
0F
0~23
0~23
22
06
-
09
0~1
0
-
0A
0B
0~23
0~23
22
6
Hot Water Boost
Anti Bacteria
System Priority Setting
Heating Auto Curve
Settings
0F
Frost Protection
Back Up Heater
Control
Hot Water Cylinder
Heater Control
Frost Protection – Schedule End Day
Frost Protection – Schedule End Time
Downtime Back Up Heater 0=5min;
1=10min;2=15min;3=20min
Uptime Back Up Heater 0=10min; 1=20min;
2=30min; 3=40min
Determines the time between HP operation and
cylinder heater ON time
0 = 30 min, 1 = 60 min, 2 = 90 min, 3 = 120 min
Change Setback Temperature
Zone selection 0=Zone 1 & 2; 1= Zone 1 Only
Night Setback
CDU Night Time Low
Noise Operation
Start Time (Hour)
End Time (Hour)
Low Noise Operation:
0 = Control disabled
1 = Control enabled
Start time (Hr)
End time (Hr)
31
Function Code
Setting Address
Function Code Setting
Hydro
Unit
Hydro unit pump (P1) synchronisation: 0
= P1 stops when in DHW mode and the
electric cylinder heater is energised (no
heating demand)
1 = P1 runs continuously
Pump Control
A02 Error Detection with
Boiler Output Enabled
5A
Range
Default
0~1
0
Pump P1 operation ON/OFF controlled
by room temperature:
0 = Pump P1 operates continuously
1 = Pump P1 synchronised with room
temperature control. When using the room
temperature controller or external room
thermostat, pump P1 will STOP when the room
air temperature reaches thermo OFF condition
65
-
0~1
0
Pump P1 control using TO sensor (heating
mode only):
P1 OFF when TO>set value in FC9E
(DPSW10_2 must be ON)
9E
-
10~30
20
A0
-
0~5
0
52
-
0~3
0
61
-
0~5
0
62
-
0~1
0
A-rated pump (P1) speed control. Changes the
percentage duty of the PWM control: 00 =
100% PWM duty (Max. RPM)
01 = 90%
02 = 80%
03 = 70%
04 = 60%
05 = 50%
E-Stop Switch Logic /
System Restart &
TEMPO Control
Remote
Controller
Forced stop input – switch logic:
0 = Contacts low > high (terminals 1-3
CLOSE) system stop. System restart with
remote controller
1 = Contacts high > low (terminals 1-3
OPEN) system stop. System restart
with remote controller
2 = Contacts high > low (terminals 1-3
OPEN) system stop. Contacts low > high
(terminals 1-3 CLOSE) system restart
3 = Contacts low > high (terminals 1-3
CLOSE) system stop. Contacts low > high
(terminals 1-3 CLOSE -second time) system
restart (PULSE INPUT)
System Restart Logic / TEMPO Control:
0 = System restarts in heating and hot
water mode
1 = System restarts in the last mode prior
to stopping
2 = System restarts in hot water mode
3 = System restarts in heating mode
4 = TEMPO Control 1: All electric
heaters disabled
5 = TEMPO Control 2: HP and all
electric heaters disabled
Allows A02 error detection to be enabled /
disabled when boiler output is ON: 0 = A02
active: When TWI,TWO or THO≥ 70°C then
the boiler output is switched OFF 1 = A02
deactivated: When TWI,TWO or THO≥ 70°C
then the boiler output stays ON
32
Function Code
Setting Address
Function Code Setting
Range
Default
-
0~1
0
5B
-
0~2
3
40
-
0~1
0
94
-
15~30
29
95
-
15~30
18
-
02
-10~10
-1
B2
-
20~37
25
9D
-
20~55
40
54
-
0~1
0
0C
-
3~24
6
59
-
1~30
4
Hydro
Unit
Remote
Controller
3E
Boiler / heat pump synchronisation. Allows
the controlling device to be set:
0 = Boiler & heat pump synchronised. The
heat pump is the controlling device. When
TWI reaches the target water temperature of
the hydro unit the boiler output switches OFF
Auxiliary Boiler / Heat
Pump Operation
1 = Boiler & heat pump not synchronised.
The heat pump and auxiliary boiler work as
independent devices. When TWI reaches
the target water temperature of the hydro
unit the boiler output remains ON
System operating mode when TO ≤
FC23: 0 = HP & boiler operation
1 = Boiler only operation (pump P1
remains ON)
2 = Electric heater operation
3 = Boiler only operation (pump P1 OFF)
nd
Room temperature control (2 RC) selection:
0 = control disabled
1 = control enabled
nd
Room Temperature
Control
Hydro Unit 3 Way Valve
Operation Control
Zone 2 Mixing Valve
Control
Setting room temperature range (2 RC):
Heating room temperature upper limit
nd
Setting room temperature range (2 RC):
Heating room temperature lower limit
Room temperature offset - HEATING
(offset between actual room temperature
and measured room temperature)
Sets water temperature when HP to restart
when the control is in A zone (based on
TWI control: FCB1 = 2)
Initial target water temperature – HEATING
nd
(2 RC or external room thermostat)
Sets the operating logic for the 3 way
diverting valve:
0 = Valve energised during hot water
operation 1 = Valve de-energised during hot
water operation
Sets the specified drive time for the
mixing valve (x 10 sec)
Sets the sample time (drive OFF) period,
for the mixing valve control (mins)
33
Function Code
Setting Address
Function Code Setting
Remote Controller Time
Display Format
Remote Controller Alarm
Tone
Remote Controller Pump
P2 Icon Display
Function Change for
Option PCB (connected
to CN209)
Hydro Unit Capacity
Setting
Range
Default
05
0~1
0
-
11
0~1
1
42
-
0~1
0
67
-
0~1
0
-
0012
Or
0017
Depending
on hydro
unit model
code
Hydro
Unit
Remote
Controller
-
Sets the format for the time display on the
remote controller:
0 = 24hr clock display
1 = 12hr clock display
Enables or disables the alarm tone, from the
remote controller, when the system generates
a fault code alarm:
0 = alarm tone OFF
1 = alarm tone ON
Enables or disables the display icon for pump
P2:
0 = P2 icon not displayed
1 = P2 icon displayed
Sets the output function of the option PCB
connected to CN209 on the hydro unit PCB:
0 = EMG terminals – output ON during defrost,
OPERATION terminals – output ON when
compressor is running
1 = EMG terminals – output ON when
error/alarm detected, OPERATION terminals –
output ON during operation (remote controller
ON)
Sets the hydro unit capacity (804XWH**E &
1404XWH**E). This code is factory set but
setting required for PCB replacement or if FC
reset completed
0012 = 804XWH**E
0017 = 1404XWH**E
01
CAUTION


The following procedures require access to the hydro unit electrical box while the system electrical
supply is switched ON
Please ensure all National and Local regulations are followed with regards to working on LIVE
equipment
Function Code Reset Procedure:
The following procedure explains how to reset the hydro unit function codes back to the factory default
settings:
1. Turn the ESTIA system OFF using the ESTIA remote controller
2. Turn OFF the power supply to the ESTIA system
3. Remove the hydro unit front cover and the cover to the hydro unit electrical box
4. Set DPSW06_1 and DPSW06_2, on the hydro unit PCB, to ON
5. Turn ON the power supply to the ESTIA system – the yellow LED, near the MCU, will start to flash
(SLOW)
6. Press and hold the tactile switch, SW07, for 15 seconds. During this time the yellow LED will go
through a sequence of flashing / LED OFF / LED ON
7. Turn OFF the power supply to the ESTIA system
8. Set DPSW06_01 and DPSW06_2, on the hydro unit PCB, to OFF
9. Replace the cover to the hydro unit electrical box and the front cover for the hydro unit
10. Turn ON the power supply to the ESTIA system
11. Reset function code FC01 to the correct capacity code. L09 fault code will be displayed if FC01 is
not set to show the correct capacity setting for the system
Component Operation Check Mode using Hydro Unit PCB:
This mode allows the commissioning engineer to check the operation of various components (pump, 2 way
valve, 3 way valve etc.) installed in the heating circuit.
1. Turn the ESTIA system OFF using the ESTIA remote controller
2. Turn OFF the power supply to the ESTIA system
3. Remove the hydro unit front cover and the cover to the hydro unit electrical box
4. Set DPSW06_2 to ON
5. Turn ON the electrical supply to the ESTIA system
34
6. Turn rotary switch SW01 to position 1 and press and hold the tactile switch, SW07, for 8 seconds
7. The operation of the heating circuit components can be checked by rotating SW01 to the relevant
position detailed in the table below
8. Set DPSW06_2 to OFF
9. Replace the cover to the hydro unit electrical box and the front cover for the hydro unit
SW01
Pos
1
2
3
4
5
6
7
8
9
10
Heating Circuit
Component
None
2 way valve
3 way diverting valve
Mixing valve
Hydro unit pump (P1)
External water pump (P2)
None (reserved)
Hydro unit back up heaters
DHW cylinder electrical
heater
Booster heater output
11
12
13
14
15
Alarm output*
Boiler output*
Defrost output*
Compressor ON output*
None
16
Hydro unit pump (P1)
continuous operation
Component Operation Using Check Mode
Comments
Cycle: valve ON for 2 sec ~ valve OFF for 3 sec
Cycle: Drive valve OPEN 30 sec ~ Drive valve
CLOSED 30 sec
Pump ON 20 sec
Pump ON 20 sec
Cycle: stage 1 ON, stage 2 ON, all OFF every
20 sec
Hydro unit pump will
operate
Cycle: Heater ON 10 sec ~ heater OFF 10 sec
Cycle: heater output ON 10 sec ~ heater output
OFF 10 sec
Cycle: output ON 10 sec ~ output OFF 10 sec
Cycle: output ON 10 sec ~ output OFF 10 sec
Cycle: output ON 10 sec ~ output OFF 10 sec
Cycle: output ON 10 sec ~ output OFF 10 sec
Continuous operation of hydro unit pump (P1)
Hydro unit pump will
operate
Do not operate the hydro
unit pump continuously if
there is no water in the
heating circuit
SW01, SW07 & DPSW06 Location
SW01
DPSW06
Tactile
switch SW07
Yellow LED
35
System Installation – Set Up Examples

1 Zone Heating
Equipment Required:
DPSW Settings:
DPSW11_2 = ON: Hot water cylinder electric heater disables
DPSW12_1 = ON: Hot water cylinder not connected to system
All other DPSW’s set in the OFF position.
Function Code Settings:
FC No
1A
1B
FC Description
Heating – upper temperature set point limit - Zone 1( °C)
Heating – lower temperature set point limit - Zone 1( °C)
Please check the following pages for the set-up of:
 External room thermostat
 Room temperature controller (HWS-AMS11-E)
 Auto curve set up
FC Range
37 ~ 55
20 ~ 37
Default Setting
55
20
pg.40
pg.41
pg.43
Note: Care should be taken when setting FC1A if the heating emitter used for Zone 1 is under floor
heating. If FC1A is set to high there is a risk that the floor surface could be damaged.
36

1 Zone Heating with Domestic Hot Water
Equipment Required:
DPSW Settings:
All DPSW’s set in the OFF position.
DPSW 13_1 to be set depending on the type of 3 way diverting valve fitted(2 wire / spring return, 3 wire
SPST or 3 wire SPDT)
Function Code Settings:
FC No
1A
1B
1E
1F
20
21
22
24
25
FC Description
Heating – upper temperature set point limit - Zone 1( °C)
Heating – lower temperature set point limit - Zone 1( °C)
Hot water – upper temperature set point limit (°C)
Hot water – lower temperature set point limit (°C)
Heat pump start temperature – hot water operation (TTW:°C)
Heat pump stop temperature – hot water operation (TTW:°C)
Hot water / heating priority switching temperature (°C)
Hot water temperature compensation – OAT start temperature (°C)
Hot water set point temperature – compensation temperature (°C)
Please check the following pages for the set-up of:
 External room thermostat
 Room temperature controller (HWS-AMS11-E)
 Auto curve set up
 Hot water anti bacteria function
 Hot water boost function
FC Range
37 ~ 55
20 ~ 37
50 ~ 80
40 ~ 60
20 ~ 45
40 ~ 50
-20 ~20
-20 ~ 10
0 ~ 15
Default Setting
55
20
75
40
38
45
0
0
3
pg.40
pg.41
pg.43
pg.47
pg.48
Note: Care should be taken when setting FC1A if the heating emitter used for Zone 1 is under floor
heating. If FC1A is set to high there is a risk that the floor surface could be damaged.
37

Zone 1 Heating With Existing Auxiliary Boiler
Equipment Selection:
DPSW Settings:
DPSW11_2 = ON: Hot water cylinder electric heater disables
DPSW12_1 = ON: Hot water cylinder not connected to system
DPSW13_2 = ON: Boiler output control enabled (use in conjunction with FC23)
All other DPSW’s set in the OFF position.
Function Code Settings:
FC No
1A
1B
23
3E
FC Description
Heating – upper temperature set point limit - Zone 1( °C)
Heating – lower temperature set point limit - Zone 1( °C)
Trigger temperature to turn boiler output (on TCB-PCIN3E) ON (°C)
Boiler / heat pump synchronisation: 0 = synchronised; 1 = not
synchronised
Please check the following pages for the set-up of:
 External room thermostat
 Room temperature controller (HWS-AMS11-E)
 Auto curve set up
 Auxiliary boiler output
38
pg.40
pg.41
pg.43
pg.44
FC Range
37 ~ 55
20 ~ 37
-20 ~ 20
Default Setting
55
20
-10
0~1
0

1 Zone Heating With Domestic Hot Water
Equipment Selection:
DPSW Settings:
All DPSW’s set in the OFF position.
DPSW 13_1 to be set depending on the type of 3 way diverting valve fitted
Function Code Settings:
FC No
1A
1B
1E
1F
20
21
22
24
25
0F
FC Description
Heating – upper temperature set point limit - Zone 1( °C)
Heating – lower temperature set point limit - Zone 1( °C)
Hot water – upper temperature set point limit (°C)
Hot water – lower temperature set point limit (°C)
Heat pump start temperature – hot water operation (TTW:°C)
Heat pump stop temperature – hot water operation (TTW:°C)
Hot water / heating priority switching temperature (°C)
Hot water temperature compensation – OAT start temperature (°C)
Hot water set point temperature – compensation temperature (°C)
0 = hot water produced by electric cylinder heater;
1 = hot water priority – hot water produced by heat pump
Please check the following pages for the set-up of:
 External room thermostat
 Room temperature controller (HWS-AMS11-E)
 Auto curve set up
 Hot water anti bacteria function
 Hot water boost function
39
pg.40
pg.41
pg.43
pg.47
pg.48
FC Range
37 ~ 55
20 ~ 37
50 ~ 80
40 ~ 60
20 ~ 45
40 ~ 50
-20 ~20
-20 ~ 10
0 ~ 15
Default Setting
55
20
75
40
38
45
0
0
3
0~1
0

2 Zone Heating With Domestic Hot Water
Equipment Selection:
DPSW Settings:
DPSW 10_3: Set switch to ON if end user requests pump P2 (Zone 2 pump) is synchronised with pump
P1 (hydro unit)
DPSW12_3 = ON: Zone 2 control enabled
DPSW 13_1 to be set depending on type of 3 way diverter valve fitted (2 wire / spring return, 3 wire
SPST or 3 wire SPDT)
All other DPSW’s set in the OFF position
Function Code Settings:
FC No
1A
1B
1C
1D
1E
1F
20
21
22
24
25
0C
59
FC Description
Heating – upper temperature set point limit - Zone 1( °C)
Heating – lower temperature set point limit - Zone 1( °C)
Heating – upper temperature set point limit – Zone 2 (°C)
Heating – lower temperature set point limit – Zone 2 (°C)
Hot water – upper temperature set point limit (°C)
Hot water – lower temperature set point limit (°C)
Heat pump start temperature – hot water operation (TTW:°C)
Heat pump stop temperature – hot water operation (TTW:°C)
Hot water / heating priority switching temperature (°C)
Hot water temperature compensation – OAT start temperature (°C)
Hot water set point temperature – compensation temperature (°C)
Specified drive time for mixing valve – 0° ~ 90° (10sec)
Sets the sample time (drive OFF) period, for the mixing valve control (mins)
Please check the following pages for the set-up of:
 External room thermostat
 Room temperature controller (HWS-AMS11-E)
 Auto curve set up
 Mixing valve set up
 Hot water anti bacteria function
 Hot water boost function
FC Range
37 ~ 55
20 ~ 37
37 ~ 55
20 ~ 37
50 ~ 80
40 ~ 60
20 ~ 45
40 ~ 50
-20 ~20
-20 ~ 10
0 ~ 15
3 ~ 24
1 ~ 30
Default Setting
55
20
55
20
75
40
38
45
0
0
3
6
4
pg.40
pg.41
pg.43
pg.46
pg.47
pg.48
Note: Care should be taken when setting FC1C if the heating emitter used for Zone 2 is under floor
heating. If FC1C is set to high there is a risk that the floor surface could be damaged.
40

2 Zone Heating with Auxiliary Boiler
Equipment Selection:
DPSW Settings
DPSW12_3 = ON: Zone 2 control enabled
DPSW 13_1 to be set depending on type of 3 way diverter valve fitted (2 wire / spring return, 3 wire
SPST or 3 wire SPDT)
DPSW13_2 = ON: Boiler output control enabled (use in conjunction with FC23)
All other DPSW’s set in the OFF position
Function Code Settings:
FC No
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
3E
0C
59
FC Description
Heating – upper temperature set point limit - Zone 1( °C)
Heating – lower temperature set point limit - Zone 1( °C)
Heating – upper temperature set point limit – Zone 2 (°C)
Heating – lower temperature set point limit – Zone 2 (°C)
Hot water – upper temperature set point limit (°C)
Hot water – lower temperature set point limit (°C)
Heat pump start temperature – hot water operation (TTW:°C)
Heat pump stop temperature – hot water operation (TTW:°C)
Hot water / heating priority switching temperature (°C)
Trigger temperature to turn boiler output (on TCB-PCIN3E) ON (°C)
Hot water temperature compensation – OAT start temperature (°C)
Hot water set point temperature – compensation temperature (°C)
Boiler / heat pump synchronisation: 0 = synchronised; 1 = not
synchronised
Specified drive time for mixing valve – 0° ~ 90° (10sec)
Sets the sample time (drive OFF) period, for the mixing valve control (mins)
Please check the following pages for the set-up of:
 External room thermostat
 Room temperature controller (HWS-AMS11-E)
 Auto curve set up
 Auxiliary boiler output
 Mixing valve set up
41
pg.40
pg.41
pg.43
pg.44
pg.46
FC Range
37 ~ 55
20 ~ 37
37 ~ 55
20 ~ 37
50 ~ 80
40 ~ 60
20 ~ 45
40 ~ 50
-20 ~20
-20 ~ 20
-20 ~ 10
0 ~ 15
Default Setting
55
20
55
20
75
40
38
45
0
-10
0
3
0~1
0
3 ~ 24
1 ~ 30
6
4

Remote Controller Schedule Timer
On an ESTIA site the customer requires the hot water function to be ON between the hours of 01:00
and 06:00. The customer requires the set point for the domestic hot water to be set to 65°C
For space heating the customer requires the ESTIA to run in heating mode for the following periods:
Period 1: 07:00 ~ 10:00
Period 2: 15:00 ~ 22:00
The customer is using radiators as the heating emitters and requires the water set point temperature
to be set to 50°C. The schedule timer must be set the same for all days of the week.
For each day the timer function will be set as shown below:
STEP No.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6
Time
01:00
06:00
07:00
10:00
15:00
22:00
Function
DHW ON, DHW set point = 65°C
DHW OFF
Zone 1 ON, heating mode, water set point = 50°C
Zone 1 OFF
Zone 1 ON, heating mode, water set point = 50°C
Zone 1 OFF
Schedule Timer Set Up
1.
Access remote controller (RC) timer function – press the SCHEDULE button for a minimum of 4
seconds. Check the RC display changes to show the schedule timer display
2.
Select the required day for the schedule timer – press the DAY button until the ▼symbol is
displayed above the required day. Press the SET button to accept the command
3.
Set up the required timer steps for the selected day – press the STEP button until STEP 1 is
displayed on the RC:
 Press the STEP button > check STEP 1 is displayed on the RC
 Press the SET button
 Press the TIME ▼▲buttons to set 01:00 on the time display of the RC
 Press the HOT WATER button to set the hot water function ON > check that a
numerical temperature is displayed on the RC for the hot water function
 Press the TEMPERATURE ▼▲ buttons to set the 65°C hot water set point
 Press the SET button
 Press the STEP button > check STEP 2 is displayed on the RC
 Press the SET button
 Press the TIME ▼▲buttons to set 06:00 on the time display of the RC
 Press the HOT WATER button to set the hot water function to OFF > check that the
RC display changes to - - - - for the hot water function
 Press the SET button
 Press the STEP button > check STEP 3 is displayed on the RC
 Press the TIME ▼▲buttons to set 07:00 on the time display of the RC
 Press the ZONE1, 2 button to set the space heating function ON > check that a
numerical temperature is displayed on the RC for the zone 1 function
 Press the OPERATING MODE button > check that the heating mode symbol is
displayed on the RC
 Press the TEMPERATURE ▼▲ buttons to set the 50°C zone 1 set point
 Press the SET button
 Press the STEP button > check STEP 4 is displayed on the RC
 Press the SET button
 Press the TIME ▼▲buttons to set 10:00 on the time display of the RC
 Press the ZONE1, 2 button to set the space heating function OFF > check that the
RC display changes to - - - - for zone 1
 Press the SET button
 Press the STEP button > check STEP 5 is displayed on the RC
 Press the SET button
42
 Press the TIME ▼▲buttons to set 07:00 on the time display of the RC
 Press the ZONE1, 2 button to set the space heating function ON > check that a
numerical temperature is displayed on the RC for the zone 1 function
 Press the OPERATING MODE button > check that the heating mode symbol is
displayed on the RC
 Press the TEMPERATURE ▼▲ buttons to set the 50°C zone 1 set point
 Press the SET button
 Press the STEP button > check STEP 4 is displayed on the RC
 Press the SET button
 Press the TIME ▼▲buttons to set 10:00 on the time display of the RC
 Press the ZONE1, 2 button to set the space heating function OFF > check that the
RC display changes to - - - - for zone 1
 Press the SET button
4.
Copy the data, shown above, for use on other days of the week:
 Press the STEP button until STEP C is displayed on the RC
 Press the SET button
5.
Paste the copied timer schedule into the other days of the week
 Press the DAY button until the ▼symbol is displayed above all day’s of the week
(timer schedule to run on all days of the week)
 Press the SET button
 Repeat the above steps for all the days of the week
6.
Exit schedule timer function
 Press the SCHEDULE button > check that the RC display changes back to the main
screen and that CLOCK icon, on the RC display is flashing
 Press the SET button > check that the CLOCK icon changes from flashing to
continuously lit.
 The timer schedule is now set
43
ESTIA - System Set Up
Please refer to the ESTIA Service Manual for a detailed description for
each of the controls / functions listed below
1. External room thermostat








Isolate the electrical supply to the ESTIA system and remove the cover to the electrical box
in the hydro unit
Install the room thermostat into the room to be monitored / controlled. Care must be taken to
ensure that the thermostat is installed in the correct position and away from the influences of
other external heat sources (sunlight, radiators etc.). Follow the thermostat manufacturers
installation instructions for correct positioning
Connect the room thermostat as to the TCB-PCBMO3E option PCB as shown in the diagram
above
In the hydro unit set DPSW 02_4 to ON
For HEATING mode:
Set FC1A to the required setting. This will set the maximum target water temperature of the
system when running in heating mode. This setting is particularly important – if the heating
emitter used is under floor heating then damage may be caused to the floor surface if FC1A
is set too high
Set FC1B to the required setting. This will set the minimum target water temperature of the
system when running in heating mode
Set FC9D to the required setting. This will set the initial target water temperature of the
system, when the electrical supply is restored to the ESTIA system, when running in heating
mode
Replace the cover on the electrical box in the hydro unit and restore the electrical supply to
the ESTIA system
NOTE:
When the external thermostat is connected the end user will be unable to set any water
temperatures, for the space heating functions, on the remote controller. The system is
controlled by the OPEN or CLOSED contact on the room thermostat.
44
2. Room temperature control
 Isolate the electrical supply to the ESTIA system
 Install the 2nd ESTIA remote controller (RC), for room temperature control, using 2 core
screened cable. The maximum cable length specified, for the 2nd RC is 50m
 Position the 2nd RC as detailed in the installation instructions supplied with the controller. It is
important to position the 2nd RC correctly as poor positioning will affect the accuracy of the
room temperature control
 The remote controllers need to be configured as header and follower controllers using the
DPSW’s on the back of each remote controller (see below).
For example a customer requests that the remote
controller on the hydro unit is set as the header device and
the 2nd RC, in the room, is set as the follower to measure
room air temperature. Set the DPSW’s as shown below:
Remote Controller DPSW – Bit Number
1
2
3
4
Hydro unit
(HEADER)
2nd RC
(FOLLOWER)









OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
Note:
Do not set DPSW2, on both the HEADER and FOLLOWER remote controllers, to ON.
This will result in poor temperature control in the room
Restore the electrical supply to the ESTIA system
Change FC40 from 0 to 1. This will allow the ESTIA system to control using the air
temperature measurement form the 2nd RC
For HEATING mode:
Set FC94 to the required setting. This will set the maximum room air temperature that can be
selected on the remote controllers when running in heating mode.
Set FC95 to the required setting. This will set the minimum room air temperature that can be
selected on the remote controllers when running in heating mode.
Set FC9D to the required setting. This will set the initial target water temperature of the
system, when the electrical supply is restored to the ESTIA system, when running in heating
mode
Set FCB1 to the required setting. This will select the required control option for the room
temperature control when running in heating mode
System Commissioning:
Measure the actual room temperature using a locally supplied temperature measuring device.
Measure the room temperature using the sensor temperature monitoring function on the
remote controller (see page 51 -use code no. 03). This must process be completed on the
remote controller that will be used to measure the room temperature
Compare the 2 temperature readings. If the temperature readings are the same then there is
no requirement to adjust the room temperature offset FC’s. If there is a difference between
the temperature reading then adjust the room temperature offset using remote controller
function code (RCFC) RCFC02 for heating
45
For example:
Temperature
Measurement
Actual
Remote Controller
Measured
Temperature
23°C
23°C
Temperature
Measurement
Actual
Remote Controller
Measured
Temperature
23°C
25°C
Temperature
Measurement
Actual
Remote Controller
Measured
Temperature
25°C
23°C
RCFC Adjustment*
No adjustment required
RCFC Adjustment*
Change from -1 to -3
RCFC Adjustment*
Change from -1 to +1
REMEMBER: The default offset setting is -1. Please consider the default offset when making
any changes to either RCFC02 or RCFC03
46
3. Auto curve control
The auto curve function allows the software on the hydro unit PCB to automatically calculate the
target water temperature of the system depending the outdoor air temperature (OAT). This function
is only available for 1 zone space heating (water temperature control).
The auto curve function is NOT available when:
 Using an external room thermostat
 Using a 2nd RC for room temperature control
The auto curve control is set using function codes and by pressing the “Auto” button on the remote
controller.
To set the auto curve temperatures:











STOP the ESTIA system using the remote controller
Set the following function codes to the required setting:
FC27: Sets the auto curve temperature shift / curve adjustment
FC29: Sets the OAT control temperature at point T1 on the diagram above
FC2B: Sets the OAT control temperature at point T3 on the diagram above
FC2C: Sets the target water temperature for the system when the OAT is -20°C
FC2D: Sets the target water temperature for the system when the OAT is at T1 position
FC2E: Sets the target water temperature for the system when the OAT is at T2 position (0°C)
FC2F: Sets the target water temperature for the system when the OAT is at T3 position
FC30: Sets the target water temperature for the system when the OAT is 20°C
FC31: Sets the percentage ratio of the Zone 1 target water temperature to be applied for
Zone 2 control
To activate the auto curve control:
 Press
on the remote controller to activate space heating
 Press
on the remote controller to activate the auto curve control
 When the auto curve control is active the numerical temperature display for Zone 1 and Zone
2, on the remote controller, is displayed with “A” for each zone
NOTE: If the heating emitter for Zone 2 is an under floor heating circuit then care should be
taken when setting FC31 to prevent any risk of damaging the floor surface due to high water
temperatures
47
4. Auxilliary boiler control







Isolate the electrical supply to the ESTIA system and remove the cover to the electrical box
in the hydro unit
Connect the start signal for the auxillary boiler to terminals 3 & 4 (EMG) of the TCB-PCIN3E
option PCB as shown in the diagram above
Set DPSW 13_2 to ON. This enables the control for boiler output control
Replace the cover on the electrical box in the hydro unit and restore the electrical supply to
the ESTIA system
Set the following function codes to the required setting:
FC23: Sets the OAT where the boiler output is switched ON
FC3E: Allows the boiler output to be synchronised with the heat pump or to run as an
independent device
 If FC3E is set to 0 then the boiler is synchronised with the heat pump. In this
condition the heat pump and the boiler will run at the same time. When the water
temperature, inside the hydro unit, reaches thermo OFF conditions then the heat
pump will STOP and the boiler output will turn OFF
 If FC3E is set to 1 then the heat pump and the boiler will run as independent
devices. When the water temperature, inside the hydro unit, reaches thermo OFF
conditions then the heat pump will STOP. However with FC3E = 1 the boiler output
will remain ON. The temperature of the water, from the boiler, will be controlled by
the boilers’ own thermostat
 FC5B: Sets the operating mode for the system when the boiler output is ON:
 FC5B = 0: The heat pump and the boiler will operate when OAT ≤ FC23
 FC5B = 1: Boiler only operation (in this mode of operation the hydro unit pump will
continue to run)
 FC5B = 2: Electric heater only operation (in this mode of operation the hydro unit
pump will continue to run)
 FC5B = 3: Boiler only operation (in this mode of operation the hydro unit pump will
STOP and the boiler output will stay ON)
48
How to determine the setting for FC23:
The boiler output is used to switch an external boiler ON / OFF to support the ESTIA system during
low ambient conditions. It is possible to estimate the switching temperature, required for the boiler
output, using the system/installation capacity graph generated by the ESTIA Sales Support Software
(see graph below).
Additional heat
source required
Required capacity supplied by
heat pump capacity only
A
On the graph above:
 The heat pump output capacity is represented by the red line
 The heat load for the installation / site is represented by the blue line
 The point where the 2 lines cross, point A, represents the equilibrium point of the system.
This is where the capacity output from the heat pump is equal to the heat load requirements
of the installation / site. On the example above the equilibrium point is reached when the
outdoor air temperature (OAT) is approximately 1°C
 The area to the left of the equilibrium point and between the red and blue lines represents
the area where an additional heat source is required to support the heat pump output
 From the graph it can be seen that when the outdoor air temperature is -4°C there is a
requirement for an additional heat source (electric back up heaters, existing boiler etc.) to
supply the installation with approximately 3.5kW of heating
 For the example above with FC23 set to 1°C then the boiler output will turn ON when the
OAT decreases to 1°C. The boiler will support the output of the heat pump if the OAT is 1°C
or less
 There is a 5K temperature differential between the boiler output ON / OFF temperatures. If
the boiler output is set to turn ON when the OAT is 1 °C then the boiler output will not turn
OFF until the OAT has reached 6°C
 It is possible to set FC23 lower than 1°C however this result in the electric back up heaters
supplying some of the heating capacity required from the additional heat source.
49
5. 2 zone heating – mixing valve set up
The ESTIA system has the ability to control the water temperature in 2 zones using different heating
emitters (e.g. zone 1: radiators, zone 2: under floor heating circuits). This is achieved by installing a
mixing valve to control the temperature of zone 2.
The mixing valve position is controlled by comparing the water set point temperature for zone 2
(entered on the ESTIA remote controller) and the actual water temperature in zone 2 (measured by
the TFI sensor). Depending on the result of the comparison between the two temperatures the
mixing valve will either OPEN or CLOSE (in steps) to control the temperature. The hydro unit
software has been designed to drive the valve from CLOSED to OPEN in 12 steps (see the ESTIA
service manual for a detailed description for the mixing valve control).
It is important that the settings for the mixing valve are set correctly using the hydro unit function
codes to achieve accurate temperature control of zone 2.



Connect the mixing valve as shown in the diagram above. The valve connection to
TB04 (in the hydro unit) will depend on whether the valve is an SPST or SPDT type
valve
Set DPSW 12_3 to ON. This enables 2 zone control and will allow the end user to
enter a temperature set point (for zone 2) on the ESTIA remote controller
Set the following function codes:
 Set FC1C to the required setting. This will set the maximum target water
temperature of the system when running in heating mode. This setting is
particularly important – if the heating emitter used is under floor heating
then damage may be caused to the floor surface if FC1A is set too high
 Set FC1D to the required setting. This will set the minimum target water
temperature of the system when running in heating mode
 Set FC0C. This sets the specified drive time for the mixing valve. The drive
time is the time measured to drive the valve through 90°. The drive time for
the valve will be displayed in the valve specification data. It is important that
this value is set correctly – this value sets the duration of the mixing valve
drive time for each of the 12 steps.
For example – if the specified drive time for the valve is 60 seconds then
the drive time for each of the 12 steps will be 5 seconds (60/12 = 5). For
each step of the control power will be applied to the drive valve for a 5
second period.
Setting the value of FC0C bigger or smaller than the actual specified drive
time for the valve will result in poor position control of the mixing valve and
therefore poor temperature control for zone 2
 Set FC59 to the required setting. This sets the temperature measuring
period (measured by the TFI sensor) or sampling period between each step
drive of the mixing valve. The value of this function code will depend on a
number of factors (thermal efficiency of the house, type of heating emitters,
size of heating circuits etc.) and so the value set will depend on the
knowledge of the installer / commissioning engineer
50
Zone 2 Set: Target water temperature for zone 2
TFI: Actual water temperature of zone 2 measured by the TFI sensor
a: 4 minute off time (sample period) between 230V~ pulses (sample period set using FC59)
b: AC230V pulse duration determined by dividing the valve opening time (from valve specification)
by 12 (the maximum number of pulses available from the hydro unit software)
Example: for a valve with a drive time specification of 60 seconds:
b = 60 / 12 = 5 seconds pulse duration
 On initial power up the mixing valve drives to the fully CLOSED position and then back to the mid
position. This gives the mixing valve a reference position to start the temperature control for zone
2
 Once the valve has reached the mid-point reference position there is a 4 minute OFF delay
(sampling period) before the valve drive to the next position. During this time the hydro unit
software measures the value of TFI and compares the measured temperature to the target water
temperature, for zone 2, set on the ESTIA remote controller
 If the temperature, measured by the TFI sensor, is lower than the target water temperature
setpoint, then the mixing valve will OPEN by one step and then the software will recalculate the
required operation during the next 4 minute OFF period
 If the temperature, measured by the TFI sensor, is higher than the target water temperature
setpoint, then the mixing valve will CLOSE by one step and then the software will recalculate the
required operation during the next 4 minute OFF period
6. Anti bacteria control (hot water mode)
The anti-bacteria control on ESTIA is used to prevent Legionella bacteria in the hot water system.
 Set the following function codes:
 Hydro unit function code – FC0A: Sets the water temperature, inside the hot water
cylinder, during the anti-bacteria cycle
 Hydro unit function code – FC0B: Sets the duration of the anti-bacteria function once the
cylinder water temperature has reached the cycle start temperature set by FC0A
 Remote controller function code – RCFC0C: Sets the anti-bacteria cycle start time
 Remote controller function code – RCFC0D: Sets the anti-bacteria cycle operating
frequency
 When the function codes have been set press the
button on the ESTIA remote
controller. This will activate the anti-bacteria cycle set in the function codes above
 When the anti-bacteria cycle is activated the anti-bacteria symbol (shown below) will be shown
on the ESTIA remote controller display
51
7. Hot water boost control (hot water mode)
The hot water boost function can be used when there is a high demand for hot water. The boost
function will heat the cylinder water to the set point temperature quicker than the time taken during
normal hot water production.
 Set the following function codes for the hot water boost function:
 FC08: Sets the duration of the hot water boost function
 FC09: Sets the set point temperature, of the water in the cylinder, to be achieved during the
hot water boost function
 When the above function codes have been set then the hot water boost function is activated by
pressing
on the ESTIA remote controller
 When the hot water boost function is active the following symbol is shown on the ESTIA remote
controller display
52
Test Run
Once you have competed the installation and system configuration conduct a test run (see below). Since the
protection setting is disabled in the TEST mode, do not continue a test run longer than 10 minutes.
• Press the TEST
button on the remote controller. An indication “TEST” appears on the remote controller.
• Press the ZONE1, 2
button and select “heating” with the OPERATE MODE
button.
The pump is activated in 30 seconds.
If air is not released completely, the flow switch is activated to stop operation. Release air again according to the
piping procedure. Little air bite is discharged from the purge valve.
• Check that the air bite sound disappears.
• Check that the hydraulic pressure has become the predetermined pressure 0.1 to 0.2 MPa (1 to 2 bar). If the
hydraulic pressure is insufficient, replenish water.
• Heating operation starts. Check that the hydro unit starts heating.
• Press the ZONE1, 2
button to stop operation.
• Press the HOT WATER
button to start hot water supply operation.
• Check that there is no air bite.
• Check that hot water is present at the connection port of the hot water cylinder.
• Press the HOT WATER
• Press the TEST
button to stop the hot water supply operation.
button to exit the test mode.
53
Sensor Temperature Monitoring Function
The sensor sensing temperature is displayed on the remote controller. This function allows you to make sure whether
the sensor is installed properly.
1) Press
+
buttons for four seconds or more.
2) Select the Code No. with the TEMP.
Code No.
Location
buttons.
Indication
Unit
00
Control Temperature (Hot water cylinder)
°C
01
Control Temperature (Zone1)
°C
02
Control Temperature (Zone2)
°C
03
Remote controller sensor temperature
°C
04
Condensed temperature (TC)
°C
Water inlet temperature (TWI)
°C
Water outlet temperature (TWO)
°C
08
Water heater outlet temperature (THO)
°C
09
Floor inlet temperature (TFI)
°C
0A
Hot water cylinder temperature sensor (TTW)
°C
0B
Motorized mixing valve position
step
0E
Lo pressure (Ps)
MPa
60
Heat exchanger temperature (TE)
°C
61
Outside air temperature (TO)
°C
62
Refrigerant discharge temperature (TD)
°C
63
Refrigerant suction temperature (TS)
°C
65
Heat sink temperature (THS)
°C
06
07
6A
Hydro unit
Current value (in the inverter)
A
6D
Heat exchanger coil temperature (TL)
°C
70
Compressor operating frequency
Hz
72
Number of revolutions of outdoor fan (lower)
rpm
73
Number of revolutions of outdoor fan (upper)
rpm
74
Outdoor PMV position x1/10
pls
F0
Micro computer energized accumulation time
x100hrs
F1
Hot water compressor ON accumulation time
x100hrs
Heating compressor ON accumulation time
x100hrs
Hydro unit AC pump operation accumulation time
x100hrs
F5
Hot water cylinder heater operation accumulation time
x100hrs
F6
Hydro unit heater operation accumulation time
x100hrs
F7
Booster heater operation accumulation time
x100hrs
F3
F4
3) Press
Outdoor unit
Service Data
button to exit the test mode.
54
Non-defective operation (program operation)…….No Check code displayed
In order to control the heat pump unit, there are the following operations as the built-in program operations
in the
microcomputer. If a claim occurs about the operation, please confirm whether it falls under any of the
contents in
the following table.
If it does, please understand that the symptom is not a defect of the equipment, and it is an operation
necessary
for the control and maintenance of the heat pump unit.
No.
1
Operation of the heat pump system
Explanation
The compressor sometimes does not operate even
within the range of compressor “ON”.
2
During the hot water supply or heating operation,
without reaching the set temperature, the compressor
operation frequency stays at a frequency of less than
the maximum Hz or lowers down.
3
The “Stop” operation on the remote control will not
stop the circulating pump. (The same for hot water
supply and heating.
4
“ON” on the remote control will not operate the
compressor. (It will not operate even after the reboot
delay timer elapsed)
When the power is turned ON it starts operation
without operating the remote controller
5
The compressor does not operate during the
operation of the compressor reboot timer (3 min).
Even after the power activation, the compressor
reboot timer continues to be active.
It may be caused by the high temperature release
control (release protection control by the
temperature of the water heat exchanger) or the
current release control.
In order to deal with the temperature increase in
the heat exchanger after stopping, the operation
continues for 1 min after the compressor is
stopped.
When the outdoor temperature (TO sensor
detection temperature) is -20°C or lower, the heat
pump will not operate in order to protect the
compressor, and the heater will operate instead.
• The auto restart operation may be working.
• The antifreeze operation may be working. If
• the TWI, TWO or THO sensor detects a
temperature below 4°C, the operation
changes from circulating pump --->>
circulating pump + heater.)
Defective operation check codes
How to determine from the check code on the remote
control
If the defect is limited by the check code displayed on the remote control, please repair the defect based on
the table on the next page.
The check codes are separated into two groups: software
and hardware errors.
Since a hardware error cannot be cancelled without a part
replacement etc., please perform a repair.
If its abnormality is determined, the abnormality is noticed
by indicating the check code on the remote control check
code display part while letting off a buzzer.
How to cancel a check code on the remote controller
(1) Press
(2) Press
or
button (on the operation side) to clear the check code.
to stop a buzzer for an abnormality only.
Although the above procedure cancels the check code, the hardware error will be displayed again until the
hardware repair is completed.
55
o…...…. Possible
x…. Not possible
Hydro Unit check codes
Check
code
Diagnostic functional operation
Operational cause
Backup
present
Automatic
reset
Pump or flowing quantity error
1) Detected by TC sensor TC 63°C is detected
in the heating or hot water supply heat pump
operation (except for defrosting).
3) Detection of chattering abnormality in the
flow switch input Chattering detection: Detects
input changes (OFF⇔ON) 4 times within 10
seconds during operation.
Defect
frequency
confirmation
4
2) Detected by flow switch abnormality When no
signal of the flow switch is showing 2 min after
the built-in pump operation started.
A01
Determination and action
×
×
1. Almost no or little water flow. •
Not enough vent air • Dirt clogging
in the water piping system. • The
water piping is too long. •
Installation of buffer tank and
secondary pump
2
4
4) Disconnection of the flow switch connector
When the stopped built-in pump starts its
operation, the flow switch status is detecting
"water flow".
1. Disconnection of the flow switch
connector.
2. Defect of the flow switch.
2
A02
Temperature increase error (heating)
When one of the TWI, TWO and THO sensors
exceeds 70°C.
Heating O
Hot water ×
O
1. Check the water inlet, water
outlet and heater outlet (TWI,
TWO, THO) sensors.
2. Defect of the backup heater
(defect automatic reset
thermostat).
1
A03
Temperature increase error (hot water supply)
When the TTW sensor exceeds 85°C.
Heating O
Hot water ×
O
1. Check the hot water cylinder
sensor (TTW).
2. Check the hot water cylinder
thermal cut-out.
1
A04
Antifreeze operation (1)
1)TWO>20°C condition: 2×TC+TWO < -12°C is
detected.
2)TWO 20°C condition: TC+TWO < 4°C is
detected.
3)TWI 10°C is detected during defrosting.
O
×
A05
Piping antifreeze operation
Activating the heater under the condition of
TWO<4orTWI<4orTHO<4 does not achieve
TWO,TWI,THO 5°C after 30 min elapsed.
O
O
A07
Pressure switch operation
The pressure switch operates for 300 sec
continuously during the heat pump operation.
A08
Low pressure sensor operation error
The low pressure sensor detected 0.2 MPa or
less.
O
×
O
1. Almost no or little water flow. •
Dirt clogging in the water piping
system. • The water piping is too
long.
2. Check the heater power circuit. •
Power supply voltage, breaker,
power supply connection
3. Set the presence of the backup
heater.
4. Check the water inlet, water
outlet and heat exchange (TWI,
TWO, TC) sensors.
1. Check the heater power circuit. •
Power supply voltage, breaker,
power supply connection
2. Check the water inlet, water
outlet and heater outlet sensors
(TWI,. TWO, THO).
3. Disconnection of the backup
heater.
Heating 8
Hot water 8
1
1. Almost no or little water flow.
2. Defect of the flow switch.
3. On-load operation under the
above conditions.
4. Defect in the pressure switch.
1
1. Almost no or little water flow.
2. Defect of the flow switch.
3. Prolonged defrosting (a lot of
frost formation) under the above
conditions.
8
4. Defect in the low pressure
sensor.
8
×
56
Check
code
Diagnostic functional operation
Operational cause
Backup
present
Automatic
reset
Determination and action
Defect
frequency
confirmation
1. No water (heating without
water) or no water flow.
2. Defect of the flow switch.
2
3. Defect of the backup heater
(poor automatic reset thermostat).
1
1. Almost no water flow
2. Defect of the flow switch
3. Low refrigerant charge
10
Operation of the release protection
When the TWO release counts to 10.
1. Almost no water flow.
2. Defect of the flow switch.
3. Check the water outlet
temperature sensor (TWO).
10
A12
Heating, hot water heater
The antifreeze control is detected under the
condition of TWI<20°C while TWI>15°C,
TTW>20°C is not detected after the heater
backup.
O
O
1. Activated by a large load of
heating or hot water supply.
2. Check the heater power circuit
(backup or hot water cylinder
heater). • Power supply voltage,
breaker, power supply connection
1
E03
Regular communication error between hydro
unit and remote controller
When there is no regular communication from
the remote control for 3 min, or when no remote
control is equipped.
×
O
1. Check remote control
connection. 2. Defect in the
remote control.
1
E04
Regular communication error between hydro
unit and outdoor unit
The serial signal cannot be received from
outdoor.
O
O
1. Check the serial circuit. •
Miswiring of the crossover
between the water heat
exchanger and the outdoor unit
1
F03
TC sensor error
Open or short circuit in the heat exchange
temperature sensor.
O
O
1. Check the resistance value and
connection of the heat exchange
temperature sensor (TC).
1
F10
TWI sensor error
Open or short circuit in the water inlet
temperature sensor.
O
O
1. Check the resistance value and
connection of the water inlet
temperature sensor (TWI).
1
F11
TWO sensor error
Open or short circuit in the water outlet
temperature sensor.
×
O
1. Check the resistance value and
connection of the water outlet
temperature sensor (TWO).
1
F14
TTW sensor error
Open or short circuit in the hot water cylinder
sensor.
×
O
1. Check the resistance value and
connection of the hot water
cylinder sensor (TTW).
1
F17
TFI sensor error
Open or short circuit in the floor temperature
sensor.
×
O
1. Check the resistance value and
connection of the floor-inlet
temperature sensor (TFI).
1
F18
THO sensor error
Open or short circuit in the heater outlet
temperature sensor.
×
O
1. Check the resistance value and
connection of the heater outlet
temperature sensor (THO).
1
F19
Detection of THO disconnection error
When TWO–THO>15K is detected and 30 sec
elapsed.
×
×
1. Check for any disconnection of
the heater outlet temperature
sensor (THO).
1
F20
TFI sensor error
When TWO–TFI>30K is detected and
TFI<TWI–5K is detected.
×
×
1. Check the connection of the
floor-inlet temperature sensor
(TFI).
1
Overheat protection operation
When the thermostat of the backup heater
activates during the operation of the heat pump
or backup heater. When the thermostat
operation is activated while it has been stopped.
O
A10
Antifreeze operation (2)
When TC + TWO < -15°C
x
A11
A09
×
×
57
Check
code
Diagnostic functional operation
Operational cause
Backup
present
Automatic
reset
Defect
frequency
confirmation
Determination and action
1. Check the connection (body or
connection wiring) of the low
pressure sensor.
Low pressure sensor error
When PS<0.07 MPa is detected for 90 sec or
more (defrosting)
.
When PS<0.07 MPa is detected for 10 minutes
or more (hot water supply, heating)
O
F29
EEROM error
Inconsistency is detected once without verify
ACK after writing to EEPROM.
×
×
1. Replace the water heat
exchange control board.
1
F30
Extended IC error
When the extended IC is abnormal.
×
×
1. Replace the water heat
exchange control board.
1
L07
Communication error
Individual hydro units have a group line.
×
×
1. Replace the water heat
exchange control board.
1
L09
Communication error
The capability of the hydro unit has not been
set.
×
×
1. Check the setting of the FC01
capability specifications.
HWS-803xx-E = 0012
HWS-1403xx-E = 0017
1
L16
Setting error
When ZONE1 has not been set, while ZONE2
has been set.
×
×
1. Check the body DP-SW12_2,3.
1
F23
O
1
2. Check the resistance value of
the low pressure sensor.
o…...…. Possible
x..…Not Possible
Outdoor Unit check codes
Diagnostic functional operation
Check
code
Operational cause
Backup
present
Automatic
reset
Determination and action
Defect
frequency
confirmation
1. Check the resistance value
and connection of the discharge
sensor (TD).
1
F04
TD sensor error Open or short circuit in the
discharge temperature sensor.
O
F06
TE sensor error Open or short circuit in the
heat exchange temperature sensor.
O
×
F07
TL sensor error Open or short circuit in the
heat exchange temperature sensor.
O
×
F08
TO sensor error
Open or short circuit in the outdoor
temperature sensor.
O
×
1. Check the resistance value
and connection of the outdoor
temperature sensor (TO).
1
F12
TS sensor error
Open or short circuit in the suction
temperature sensor.
O
×
1. Check the resistance value
and connection of the suction
temperature sensor (TS).
1
F13
TH sensor error
Open or short circuit in the heat-sink
temperature sensor.
O
×
1. Check the resistance value
and connection of the heat-sink
temperature sensor (TH).
1
F15
TE, TS sensors error
Open or short circuit in the temperature
sensors.
O
×
1. Check for any wrong
installation of the heat exchange
temperature sensor (TE) and the
suction temperature sensor
(TS).
1
F31
EEPROM error
O
×
×
58
1. Check the resistance value
and connection of the heat
exchange temperature sensor
(TE).
1. Check the resistance value
and connection of the heat
exchange temperature sensor
(TL).
1
1
1
Diagnostic functional operation
Check
code
Operational cause
Backup
present
Automatic
reset
Determination and action
Defect
frequency
confirmation
H01
Compressor breakdown
1 When the operation frequency lowers due
to the current release 40 sec or later after the
compressor activation and it stops by under
running the minimum frequency.
2 When the operation frequency lowers due
to the current limit control and it stops by
under running the minimum frequency.
3 When an excess current is detected 0.8 sec
or later after the compressor activation.
H02
Compressor lock
When the input current is more than zero 20
sec or later after the compressor activation
and the activation has not been completed.
O
×
1. Defect of compressor (lock) –
Replace the compressor.
2. Defect of compressor wiring
(open phase).
H03
Defect in the current detection circuit
O
×
1. Replace the outdoor inverter
control board.
8
4
O
×
1. Check the power supply
voltage
(AC220 -230 V±10% single
phase type).
(AC380 – 400V ± 10% 3 phase
type)
2. Over-loaded condition of the
refrigeration cycle.
3. Check that the service valve
is fully open.
8
8
H04
Operation of case thermostat
When the case thermostat exceeds 125°C.
O
×
1. Check the refrigeration cycle
(gas leak).
2. Check the case thermostat
and connector.
3. Check that the service valve
is fully open.
4. Defect of the pulse motor
valve. 5. Check for kinked
piping.
L10
Unset service PC board jumper
Jumpers J800-J803 have not been cut.
O
×
1. Cut J800-J803.
1
L29
The communication between the outdoor
PC board MUCs error
No communication signal between IPDU and
CDB.
O
×
1. Replace the outdoor control
board.
1
1. Check the refrigeration cycle
(gas leak).
2. Defect of the pulse motor
valve.
3. Check the resistance value of
the discharge temperature
sensor (TD).
4
P03
The outlet temperature error
When the discharge temperature sensor (TD)
exceeds 111°C.
O
×
P04
The high pressure switch error
O
×
P05
The power supply voltage error
When the power supply voltage is extremely
high or low.
O
×
P07
P15
Overheating of heat-sink error
When the heat-sink exceeds 105°C.
Detection of gas leak
When the discharge temperature sensor (TD)
exceeds 106°C for consecutive 10 min. When
the suction temperature sensor (TS) exceeds
40°C for heating for 10 consecutive min.
O
×
O
×
59
10
1. Check the power supply
voltage. (AC230 V±23 V)
1. Check the thread fastening
and heat-sink grease between
the outdoor control board and
the heat-sink.
2. Check the heat-sink fan duct.
3. Check the resistance value of
the heat-sink temperature
sensor (TH).
1. Check the refrigeration cycle
(gas leak).
2. Check that the service valve
is fully open.
3. Defect of the pulse motor
valve.
4. Check for kinked piping.
5. Check the resistance value of
the discharge temperature
sensor (TD) and the suction
temperature sensor (TS).
4
4
4
Diagnostic functional operation
Check
code
P19
Operational cause
The 4-way valve inversion error
When the heat exchange temperature sensor
(TE) exceeds 30°C or the suction
temperature sensor (TS) exceeds 50°C
during the heat pump operation.
Backup
present
Automatic
reset
×
O
P20
High pressure protection operation
When an abnormal stop occurs due to the
high pressure release control.
When the water outlet sensor (TWO) detects
60°C during the heating or hot water supply
operation.
O
×
P22
Outdoor fan system error
When a DC fan rotor position detection NG,
element short circuit, loss of synchronization,
or abnormal motor current occurs.
O
×
P26
P29
Short circuit of the compressor driver
element error
When an abnormal short circuit of IGBT is
detected.
Compressor rotor position error
The rotor position in the compressor cannot
be detected.
O
O
60
Determination and action
1. Check the operation of the 4way valve unit or the coil
characteristics.
2. Defect of the pulse motor
valve.
3. Check the resistance value of
the heat exchange temperature
sensor (TE) and the suction
temperature sensor (TS).
1. Check that the service valve
is fully open.
2. Defect of the pulse motor
valve.
3. Check the outdoor fan system
(including clogging).
4. Over-filling of refrigerant.
5. Check the resistance value of
the heat exchange temperature
sensor (TL) and the water outlet
temperature sensor (TWO).
1. Check the lock status of the
motor fan.
2. Check the connection of the
fan motor cable connector.
3. Check the power supply
voltage (AC230 V±23 V).
Defect
frequency
confirmation
4
10
1-4
×
1. P26 abnormality occurs when
operating with the compressor
wiring disconnected … Check
the control board.
2. No abnormality occurs when
operating with the compressor
wiring disconnected …
Compressor rare short.
8
×
1. Even if the connection lead
wire of the compressor is
disconnected, it stops due to an
abnormality in the position
detection … Replace the
inverter control board.
2. Check the wire wound resistor
of the compressor. Short circuit
… Replace the compressor.
8
Remote controller check codes
Outdoor Fault Diagnosis
You can perform fault diagnosis of the outdoor unit with the LED's on the P.C. board of the outdoor unit in
addition
to check codes displayed on the wired remote controller of the hydro unit.
Use the LED’s and check codes for various checks.
Check of the abnormal status in
Check of the current abnormal status
the past although the abnormal
1. Check that DIP switch SW803 is set to all OFF.
status is not occurred now.
2. Jot down the states of LED800 to LED804. (Display mode 1)
1. Set bit 1 of DIP switch SW803 to
3. Press SW800 for at least one second. The LED status changes to ON.
display mode 2.
2. Jot down the states of LED800 to
4. Check the code whose display mode 1 equals the jotted LED
LED804. (Display mode 1)
status and display mode 2 equals the current flashing status of
3. Press SW800 for at least one
LED800 to LED804 from the following table to identify the cause.
second. The LED status changes to
display mode 2.
4. Find an error whose display mode
1 equals the jotted LED status and
display mode 2 equals the current
flashing status of LED800 to LED804
from the following table to identify
the error.
• An outside air temperature (TO)
sensor error can be checked only
while an error occurs.
61
DISPLAY MODE 1
DISPLAY MODE 2
No.
Cause
D800
D801
D802
D803
D804
D800
D801
D802
D803
D804
1
Normal
●
●
●
●
●
●
●
●
●
●
2
Discharge sensor (TD) error
○
○
●
●
○
●
●
◎
●
●
3
Heat exchanger sensor (TE) error
○
○
●
●
○
●
◎
◎
●
●
4
Heat exchanger sensor (TL) error
○
○
●
●
○
◎
◎
◎
●
●
5
Outside air temperature sensor (TO) error
○
○
●
●
○
●
●
●
◎
●
6
Suction sensor (TS) error
○
○
●
●
○
●
●
◎
◎
●
7
Heat sink sensor (TH) error
○
○
●
●
○
◎
●
◎
◎
●
8
Outdoor temperature sensor (TE/TS) connection
error
○
○
●
●
○
◎
◎
◎
◎
●
9
Outdoor EEPROM error
○
○
●
●
○
◎
◎
◎
◎
◎
10
Compressor lock
●
●
○
●
○
◎
●
●
●
●
11
Compressor lock
●
●
○
●
○
●
◎
●
●
●
12
Current detect circuit error
●
●
○
●
○
◎
◎
●
●
●
13
Thermostat for compressor activated
●
●
○
●
○
●
●
◎
●
●
14
Model data not set (on the service P.C. board)
●
○
○
●
○
●
◎
●
◎
●
15
MCU-MCU communication error
●
○
○
●
○
◎
●
◎
◎
◎
16
Discharge temperature error
○
○
○
●
○
◎
◎
●
●
●
17
Abnormal power (open phase detected or
abnormal voltage)
○
○
○
●
○
◎
●
◎
●
●
18
Heat sink overheat
○
○
○
●
○
◎
◎
◎
●
●
19
refrigerant leak detected
○
○
○
●
○
◎
◎
◎
◎
●
20
4-way valve reverse error
○
○
○
●
○
◎
◎
●
●
◎
21
High pressure release operation
○
○
○
●
○
●
●
◎
●
◎
22
Outdoor fan motor error
○
○
○
●
○
●
◎
◎
●
◎
23
Compressor driver short circuit protection
○
○
○
●
○
●
◎
●
◎
◎
24
Position detect circuit error in one-line display
○
○
○
●
○
◎
●
◎
◎
◎
○
: ON
●
62
: OFF
◎
: FLASHING
1402285601R01UK
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