SERO DC AWA-SS-7 User manual

-Please read this operating manual before using the Heap Pump-
INSTALLATION AND MAINTENANCE INSTRUCTIONS
AIXIA
DC INVERTER AIR SOURCE HEAT PUMP - ALL IN ONE -
MODEL:
DC AWA-SS-7 / DC AWA-SS-9
DC AWA-SS-12 / DC AWA-SS-15
(230V/50Hz)

Contents
1
System description
Principle of operation ............................................ 3
Control panel
Layout .................................................................. 5
Explanation .......................................................... 5
General information for the installer
Transport and storage ............................................ 7
Installation .............................................................. 7
Copper pipe connecting ........................................ 7
Inspection of the installation .................................. 7
Pipe connections
General .................................................................. 8
Copper Pipe connections ...................................... 8
Pipe connection (heating medium) ........................ 9
Pipe connections (water heater) ............................ 9
Pump capacity diagrams, heating medium side .. 12
Electrical connections
Wiring of the terminal (mode one) ......................... 15
Connecting the room temperature sensor ........... 16
1.5mm2 terminal connection ............................. 17
2.5mm2 terminal connection ............................... 17
Commissioning and adjusting
Preparations ........................................................ 20
Filling and venting the heating medium system ... 20
Readjusting, heat medium side ............................ 21
Emptying the water heater .................................. 21
Control
General Information ............................................. 22
Menus .................................................................. 22
Main Menu Information ........................................ 23
Sub-menu Operation............................................. 24
Sub-menu Heat Curve .......................................... 25
Sub-menu Temperature ....................................... 26
Sub-menu Time Setting ........................................ 28
Adjustments to be made regularly ........................ 36
Heat Generation-General....................................... 36
Adjustment of the CURVE valve ........................... 36
Adjustment of ROOM valve.................................... 37
Adjustment of Part of the Heat Curve .................... 39
Adjustment the MIN and MAX valve ..................... 40
Maximum Return Line Temperature ..................... 42
Warm water Production........................................... 42
Regular checks .......................................................43
Check of the Operating Mode ............................... 43
Dealing with malfunctions
Draining, heat medium side ................................ 53
Component placement
Component positions 1 ........................................ 54
Component positions 2......................................... 55
Component positions 3 ....................................... 56
List of components
List of components ................................................ 57
Dimensions
Dimensions and setting-out coordinates .............. 58
Accessories
Accessories .......................................................... 61
Technical specifications
Technical specifications ....................................... 62
Unit Description .................................................... 3
Principle of heatpump ........................................... 4
Functions ............................................................. 6
Symbols ............................................................... 6
How to adjust the rate of flow .............................. 13
Connect the power cord ....................................... 14
Wiring of the terminal (mode two) ......................... 15
Connecting the outside temperature sensor ........ 16
Wiring diagram ( Indoor Unit ) .............................. 18
Graph of recent change in TEMPERATURE..........41
Checking the Water Level of the Heating system .43
Checking the safety valves .................................... 43
In the event of leakage .......................................... 43
Alarm Messages .................................................... 44
Terminology and Abbreviations ............................. 51
Draining, water tank.............................................. 53
Draining, the chassis............................................. 53
Inspection ............................................................. 21
Adjust the heat medium pump .............................. 21
Enclosed kit .......................................................... 61
Sub-menu Integral ................................................. 26
Sub-menu Reset ................................................... 35
Sub-menu Man Test .............................................. 35
Dimensions of the DC AWA-SS-7 outdoor unit .... 59
Dimensions of the DC AWA-SS-9 outdoor unit .... 59
Dimensions of the DC AWA-SS-12 outdoor unit... 60
Dimensions of the DC AWA-SS-15 outdoor unit... 60
Description of the switch board ............................. 52
How to connect the copper pipes ......................... 10
The step and diagram of collect refrigerant .......... 11
Sub-menu DEFROST ............................................ 31
Degree Minute's(DM) instruction............................ 27
Sub-menu SETTING ............................................. 33
Sub-menu LANGUANG.......................................... 35
Adjustment of the HIGH T STOP and
LOW T STOP value
............................................. 40
Connecting the defrost temperature sensor ......... 16
Wiring diagram ( Outdoor Unit ) ........................... 19
Sub-menu Operating Time .................................... 34

DC AWA-SS seriesconsistsofaheatpump,waterheater,
electrical module, circulation pumps and a control sys-
tem. DC AWA-SS series is connected to the Outdoor Unit
and heating medium circuits.
Theheatsource of theDC AWA-SS seriesis providedfrom
air. the Outdoor Unit of the system is a heat exchanger
for collecting the heat of air.
The air emits its heat to the refrigerant in the evapo-
rate of Outdoorunit. It then vaporises and is com-
pressed in the compressor. The refrigerant, the tem-
perature of which has now been raised, is passed to
the condenser where it gives off its energy to the heat-
ing medium circuit and, if necessary, to the water
heater. After the condenser there is a built-in electrical
module which cuts in if there is a high demand.
System description 2
Principle of operation
CW
HW
Expansion
vessel Heating
flow
Heating
return
The heating medium side and
the hot water side must be fit-
ted with the necessary safety
equipment in accordance with
the applicable regulations.
Condenser
Compressor Expansion
valve
Heating
medium pump
Heating medium return
Heating medium flow
Three-way valve
Electrical
auxiliary heater
(VB),
(VB),
Gas valve
Liquid
valve
Outdoor unit

System description
3
Unit Description
In order to get the best results from the climate system DC AWA-SS series you should read through the
section For the System manager in these Installation and Maintenance instructions.
DC AWA-SS series is a climate system for heating houses and apartment buildings as well as industrial
properties.
Air is used as the heat exchange source.
DC AWA-SS series
is a complete heating installation for heating and hot water .
It is fitted with new design on the market to be developed specifically for heat pumps. A new evaporator enables
a
new and impr oved cir culation system for the r efrigerant. The heat pump has an integrated 150 or 200 litr e water
tank and
an immer sion heater . The T ap W ater Stratification system impr oves the ef ficiency of heat transfer by keeping
the water in
distinct thermal layers in the water tank.
The unit is fitted with a r egulating computer , which is contr olled over a graphic display unit.
Heat is distributed thr oughout the house over a hydr onic heating system r eferr ed to as low temperatur e
system with a maximal water temperatur e to radiators (feed water temperatur e) of 65°C. Most of the heating
demand is taken car e of by the heat pump (compressor unit), the auxiliary heater being star ted only when
demands exceed available heat pump capacity .
DC AWA-SS series consists of five main components:
a. Heat Pump Unit
Rotory or Scr oll-compr essor
Stainless steel heat exchangers
Cir culation pumps for heating systems
V alves and safety equipment for r efrigerant system, complete with necessary electric components
b. W ater Heater
150 or 200 litr e
Lined
with copper sheet against corr osion or made of stainless steel
Maintenance fr ee as no anode is used
c. Reversing V alve
Opening or closing the connection to water heater accor ding to operating mode: heating or warm water
pr oduction
d. Auxiliary Heater
3/6/9 kW electric heating element
Three-step capacity contr ol
Fitted on feed water line
Delivers back-up heat in case of gr eat heat demand that exceeds heat pump capacity
Star ts automatically , pr ovided operating mode “AUTO” has been selected
e. Regulating Equipment
The r egulating system contr ols heat pump components (compressor , cir culation pumps, auxiliary heater and
r eversing valve). Based on data r eceived fr om sensors, it star ts or stops heat pump operation and determines
whether he a ting or warm water shall be pr oduced. The system consists of:
Control computer with graphic display unit
T emperatur e sensors (outside air ,room, feed line, r eturn line system)

System description 4
Principle of heat pump
A heat pump can exploit the ener gy contained in natural heat sour ces. Or , to put it dif fer ently , the heat
pump ”collects” heat ener gy fr om the heat sour ce. This makes the heat pump a very environmentally friendly and
economically sound alternative for space heating.
a.
b
The
Outdoor unit is used as the heat
pump’ s evaporator . Here the heat ener gy of the Outdoor Unit causes
the
r efrigerant, cir culating thr ough the evapo rator , to boil and turn into a gas – it evaporates.
c
The r efrigerant, having absorbed heat ener gy , is cir culated to the compr essor wher e pr essur eand temperatur e
ar e raised.
d
The r efrigerant continues to the condenser . When condensing, it r eleases heat ener gy to the heat carrier ,
cir
culating thr ough the condenser . The temperatur e of the r efrigerant sinks, and it r eturns to its liquid state.
e
The heat ener gy r eleased is carried by the heating cir cuit to water heater and radiator or floor heating systems.
At last the r efrigerant is led thr ough the expansion valve, wher e its pr essur e is r educed, and then con tinues to
the
evaporator
.
The pr ocess is r estar ted.
The heat pump has two separate liquid circuits
Refrigerant circui t
– cir culating inside the heat pump. Thr ough evaporation, compr ession and condensation it
absorbs ener gy fr om the outdoor unit and r ele ases it to the heat carrier . The r efrigerant is chlorine-fr ee.
Heating circuit – water transporting heat ener gy to the heating system (radia tors/floor coils) and the water
heater .
Expantion valve/
pressure drop
Refrigerant
Condenser
Compressor/
pressure increase
Evaporator
Heating Circuit
Refrigerant Circuit
Fan

Control panel
5
Layout
Explanation
Display
Left
button
C
D
button
Power On/Off
A
Up
button
F
Down
button
Right
The contr ol panel of DC AWA-SS series featur es a graphic display , five contr ol buttons .
Beside the contr ol panel you will find the User’ s Manual, a shor t description of how to incr ease and r educe r oom
temperature, and a label with name and phone number of dealer .
Graphic display
• One button pointing upwards marked with a up arrow
• One button pointing downwards marked with a down arrow
• One button pointing to the right marked with a right arrow
• One button pointing to the left marked with a left arrow
• One button pointing to the ON/OFF
ROOM 20
MONDAY 11:30
1
HDO
CSP
95
%
,
ROOM 20
MONDAY
11:30
1
HDO
CSP
95
%
OPER.WARMWATER
OPER.WARMWATER
•The running speed
percentage of compressor.

Control panel 6
Functions
Symbols
For you to know at a glance the actual operating mode of the heat pump, one of the following symbols will be shown in the lower
part of the display depending on which part of the unit is working:
The heat pump is running.
The auxiliary heater is activated.
The figur e next to the symbol indicates
capacity step.
There is a room heating demand.
W arm water is being pr oduced.
Indicates the status of warm water
pr oduction.
If the symbol is empty ,
warm water temperatur e
If the symbol is full, warm water
temperatur
is under
the setting temperature.
e reached to the setting
temperature
The right-hand button on the control panel is used to open the desired menu.
The left-hand button is used to return to the previous menu.
The up and down buttons are used to navigate between the parameters of a menu.
A cursor (arrow) on the left-hand side of the display indicates which menu can be opened.
The up and down buttons are also used if you wish to increase or reduce a preset value.
The control computer is operated with the help of a user friendly menu system that is displayed on the control
panel. There is a main menu and several sub-menus accessible from the main menu. The menus are
described in detail further down.
To be able to select the desired menu and increase or reduce preset values, you will use the five buttons.
HDO
CSP
When this symbol appears, the heat pump
is not running due to external signal stop it;
heat pump will restore running as soon as
signal input again
When this symbol appears, the
compressor was not running due to
high pressure of refrigerant system;
the compressor will be stopped as soon
as water temperature over 50 °C and
refrigerant system pressure over 4.0MPA,
electrical heater will start as supplementary;
compressor will restores as soon as water
temperature less than 50 °C and refrigerant
pressure get right.
There is a room cooling demand.
During heat pump running, if the water tank symbol twinkles once in every second, it means water tank
temperature is too low and it is in antifreezing protection. At the time warm water heating will forcibly start until
water temperature get to 20 ć, then go back to previous running mode.
NOTICE

General information for the installer
7
Current regulations require the heating installation to
be inspected before it is commissioned. The inspec-
tion must be carried out by a suitably qualified person
and should be documented. The above applies to
closed heating systems. If the heat pump is replaced,
the installation must be inspected again.
DC AWA-SS series is placed on a firm base, preferably a
concrete floor or foundation. Install DC AWA-SS series
with its back to an outside wall, ideally in a room where
noise does not matter. If this is not possible, avoid
placing it against a wall behind a bedroom or other
room where noise may be a problem. Any wall that
backs on to a bedroom should be fitted with sound
insulation. Route pipes so they are not fixed to an inter-
nal wall that backs on to a bedroom or living room.
Installation
Copper pipe connecting
Inspection of the installation
1) The maximun length of the connecting copper pipe
between the mainframe and outdoor unit is 15 meters.
+2
0
-2
1
R
0
HMflow 49(50)°C
Hotwater 51°C
+2
0
-2
1 R 0
HMflow
49(50)°C
Hotwate r
51°C
The DC AWA-SS series must be transported and stored
upright and dry. The DC AWA-SS series may however be
carefully laid on its back when being moved into
a building.
Transport and storage
2) There is no need to charge extra refrigerant into the
copper pipe while its length is less than 5 meters.
3) While the copper length is more than 5 meters,
copper pipe while its length is less than 5 meters.every
extra 10g refrigerant must be charged for per increased
1 meter length.
Notice
1. If the outdoor unit is situated on the ground, rubber
feet must be fixed to the bottom of the unit, to help with
vibration;
2. in line filter on the return line;
3.To clean system with a power flush before installing
the heat pump and fill with clean water;
4. To use flow gauge to get the correct flow for each unit.

Pipe connections
8
Pipe installation must be carried out in accordance
with current norms and directives. The heat pump can
operate up to a return temperature of about 58* °C
and an outgoing temperature of about 70* °C from the
heat pump. The compressor produces up to 65* °C,
the rest is obtained using additional heating.
The other heat pumps has a max return temperature
of approximately 50 °C and an outgoing max tempera-
ture from the heat pump of approximately 60 °C.
Since the DC AWA-SS series is not fitted with shut-off
valves, these must be fitted outside of the heat pump
to make future servicing easier.
During assembly the pipes for the heat medium
and water heater and possibly hot water circulation
are routed backwards. The distance between
DC AWA-SS series and the wall ought to be 50 mm.
General
NOTE!
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The size of the outlet for connecting copper pipe can be
adjusted by the fixing board.
Copper pipe connections
According to their practical situation,users can choose
the place on mainframe ( left or right ) for the out
of connecting copper pipe.
NOTE!
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Copper tuble size
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XQLW
/
/
/
Modle
Size
Gas
tube
5 / 8 " 5 / 8 " 3 / 4 "
3 / 4 "
Liquid
tube
3 / 8 "
3 / 8 " 1 / 2 "
1 / 2 "
SOLARIS DC SOLARIS DC SOLARIS DC SOLARIS DC
7 9 12 15

Pipe connections
9
Pipe connections for the heat medium side are made
at the top. All required safety devices, shut-off valves
(as close to the heat pump as possible), and particle
filter (supplied) are fitted.
When connecting to a system with thermostats on all
radiators, a relief valve must be fitted, or some of the
thermostats must be removed to ensure sufficient
flow.
Pipe connections (heating
medium) The heat pump´s water heater must be fitted with the
necessary valve equipment.
Pipe connections (water heater)
The heat pump should be supplemented with an elec-
tric water heater if a bubble pool or other significant
consumer of hot water is installed. The valve coupling
in COMPACT (electrical water heater) can be divided.
The mixing valve stays in COMPACT and the remain-
ing valve coupling can be used for incoming cold
water in DC AWA-SS series.
P
EXP
HW
CW SAV
SAV
VENTING VALVE
NOTE!
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WKHWRSRIWKHKHDWLQJPHGLXPV\VWHP
SF
Notice
2. in line filter on the return line;
3.To clean system with a power flush before installing
the heat pump and fill with clean water;
4. To use flow gauge to get the correct flow for each unit.
SF Particle filter

Pipe connections
10
How to connect the copper pipes
Piping Connecton
Attention :
When connectiong the pipe, a suitable pitching spanner must be used. If other spanner is used, it may
damage the joint due to inappropriate force.
4. Connect the electric cable as per circuit diagram, and bundle
it with the connecting pipe.
1. Open the cover of the outdoor unit.
2. Connect the pipe to the indoor unit and outdoor unit.
Align the centre of the pipe and fully screw in the angular nuts with Finger.
On connecting the pipe, one should ensure that the insulating material of the pipe be closely fitted to
the nuts at the joint.
On connecting to theexternal unit, the pipeshould be wrapped with sponge padding to prevent
rain water from flowing in.
When bending the pipe,the radius cannot be too small and be about 150 160 mm.
connecting pipe
thick pipe
end nut
Connector
low pressure valve
high pressure valve
thin pipe
3. Use Vacuum pump to remove the air from indoor unit and
connection pipe.
Wipe the quick connectors with clean cloth to prohibit dust and impurity entering the pipes.
5. Take off the nuts in the mouths of high valve and low valve, turn
the valves core anticlockwise with hexagon panner till the valves
are opened completely. Recover and tighten the nuts.
6. Check leakage: check if there is leakage at each connection of the
pipes or nuts. If yes, remedial neasure must be taken, leakage is
not permitted in any case.

Pipe connections
11
If the outdoor unit needs to be disconnected and moved to another place, please recycle the
gas back into the compressor according to the following steps before doing the disconnecting:
The step and diagram of collect refrigerant
Liquid valve
Gas valve
Valve key
Liquid valve
Gas valve
Valve key
Liquid valve
Gas valve
20 seconds
Liquid valve
Gas valve
5. Tighten the cap of two valves.
6. loose the nut of the connect pipe to the outdoor unit valve with 2 spanner, disconnect the connect pipe
and the two valves.
2. Remove the cap of two valves with the spanner.
3. Tighten the core of the liquid valve (the smaller one) with valve key at first . After about 20 seconds, tighten
the core of the gas (the bigger one) with valve key.
1.Turn to the menu: OPERATION---MAN TEST
SET TO
was stopped.
4. Exit the " MAN TEXT "at once or turn the " WARM PUMP " ," OUT FAN " ," CMP " to OFF,at that time the
HEATPUMP
ADD 1
3 WAY
4 WAY
WARM PUMP
MAN TEST
OFF
OFF
OFF
OFF
OUT FAN OFF
CMP OFF
ADD 2 OFF
ADD 3 OFF
ADD 1
3 WAY
4 WAY
WARM PUMP
MAN TEST
OFF
OFF
OFF
ON
OUT FAN ON
CMP ON
ADD 2 OFF
ADD 3 OFF

Pipe connections
12
Pump capacity diagrams, heating medium side
kPa
DC AWA-SS-7 / DC AWA-SS-9 / DC AWA-SS-12
Available
pressure
Flow
l/s
1
2
3
0.22 0.44
0.66
0.88 1.10 1.32
80
70
60
50
40
30
20
10
0
1.54 1.76
0
DC AWA-SS-15
kPa
Tillgängligt tryck
Available
pressure
Flow
1
2
3
0.28 0.56
0.84
1.12 1.41.68
80
70
60
50
40
30
20
10
0
1.96 2.24
0
l/s
WILO RS-25/8
WILO RL-25/7.5

Pipe connections
13
The pump is
adjustable to adjust
the flow: 1, 2, or 3.
The pump is
adjustable to adjust
the flow: 1, 2, or 3.
WILO RS-25/8
WILO RL-25/7.5
How to adjust the rate of flow

Electrical connection 14
NOTE!
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ZLWKWKHVWLSXODWLRQVLQIRUFH
Connect the power cord
( 230V / 50 HZ )
L
N

Electrical connection15
Step1 Step3Step2
Step1 Step3Step2
Wiring of the terminal (mode one)
Wiring of the terminal (mode two)

Electrical connection 16
Connecting The Room Temperature Sensor
Connecting The Outside Temperature Sensor
PG=Defrost temperature sensor
Outdoor unit
PG
Outside air temperature sensor
Outside air temperature sensor
PO=Outside air temperature sensor
Room temperature sensor
ROOM
Room temperature sensor
ROOM=Room temperature sensor
Connecting The Defrost Temperature Sensor
PO
PG
PO
PG

Electrical connection17
RETURN WTT FEED EHI WF ROOM HP LP
CSP
N
3WV
4WV
N
GND WCP
N
N
GND
GND
WCP2
N
From PCB2 / T1
3-Way Valve's Relay ( port 3) From PCB2 / CN6
From Water return Temperature Sensor
From Water feed Temperature Sensor
From Defrost Temperature Sensor
From Outside Air Temperature Sensor
From Room Temperature Sensor
From Water Tank Temperature Sensor
From Compressor Exhaust
Temperature Sensor
From High Pressure Pressostat
From Low Pressure Pressostat
From
From
From Water Flow Switch
From Three-way valve forwaterflow
From Four_way Valve
From Water cycle pump
From Outdoor Unit FAN-LOW-L
From Water cycle pump2
From Common Terminal (CT)
1.5mm2 terminal connection
EH4
From Oudoor Unit Eletrical heater 4-L
NOTE!
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VKRXOGEHFRQQHFWHGWRWKHPP
2
WHUPLQDO
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3-Way Valve's Relay ( port 1)
HDO PO
From Electrical auxiliary heater
Temperature Sensor
From Outdoor Unit FAN-N /Outdoor EH4-N
From Outdoor Unit FAN GND
From PCB2 / CN2 N-IN connect together
From External relay signal control port
From Compressor stop protection
2.5mm2 terminal connection
EH1
EH2
N
EH3
N
GND From
From Compressor
From Electrical heater 3
From Electrical heater 2
From Electrical heater 1 From Fuse 1
From Fuse 2
From Fuse 3
From K1 N
GND From
From Electrical heater
From K1 N
PG PQ
OFAN
-H
OFAN
-L
From Outdoor Unit FAN-HIGH-L
From PCB2 / T2 From PCB2 / T3
From PCB2 / CN15 From PCB2 / CN15
From PCB2 / CN14
From PCB2 / T4
From MAIN PCB / CN22 From MAIN PCB / CN24 From MAIN PCB / CN23 From MAIN PCB / CN15 From MAIN PCB / CN15
From MAIN PCB / CN15
From
From MAIN PCB / CN21-L From MAIN PCB / CN21-N From MAIN PCB / CN14 OFAN-H From MAIN PCB / CN13 OFAN-L From MAIN PCB / CN11-N
From Common Terminal (CT)
From MAIN PCB / CN11N(AC)-OUT
From PCB2 / CN2 N-IN
From Water Temperature Thermostat 1 (WTP1 40C) From Water Temperature Thermostat 2 (WTP2 70C)
From Switch Board E-HEATER port From AC Contactor - A2

Electrical connection 18
Indoor Unit Wiring Diagram of DC AWA-SS-12 / 15
Indoor Unit Wiring Diagram of DC AWA-SS- 7 / 9
CN4
CN6
CN17
CN8
Cn11
N(AC)-OUT
P6 P3
CN10 CN1
CN9
CN2
CN614
CN27
CN16-N
CN16-L
CN21-L
CN21-N
CN11-N
CN11-L
LL
CN5
CN15
CN23
CN24
LP
HP
4WV
EXPANSION
VALVE
PO
PG
PQ
MAIN
PCB
P1
5
5
YELLOW
BLUE
RED
P1
CN22
COMPRESSOR PRESSURE
RELIEF SWITCH
CSP
CN 14 OFAN-H
CN 13 OFAN-L
CN 6CN 8
CN 4 CN 5
CN 27
T 1
PCB2
L-IN
T 2
T 3
T 4
COM NO COM NO COM NO
CN 1 CN 2 CN 3
N-IN
S
CN 14CN 15
3WV
7
8
1
3
2
4
5
6
A1 A2
WCP
4
FEED
RETURN
WTT
EHI / WF
ROOM
WCP 2
N
N
OFAN-L
OFAN-H
EH 4
K1
F2 [ 15A ]
F1 [ 15A ]
F3 [ 15A ]
EH 2
EH 1
EH 3
SB
HDO
BROWN
BLACK
RED
BLUE
BLACK BLACK
BLACK
BLACK
BLUE
BLACK
BLUE
BLUE
BLACK
BROWN
BLACK
BLACK
BLUE/WHITE
WHITE
BLUE/YELLOW
BLACK
BLACK
BLACK
BLACK
BLACK BROWN
BLUE
BLACK
WHITE
BLACK
WHITE
WHITE
WVU
WTP1
WTP2
RE
EV
CM
CT
AC
BLACK
BLACK
BLUE
BLUE
RED
BLUE
BLUE
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK BLUE
BLACK
K1 Air Break Switch
AC AC
Contactor
SB Switch Board
CM Compressor
PCB Circuit Board
3WV 3 Way Valve
4WV 4 Way Valve
WCP Water
Circulating Pump
WCP2 Water
Circulating Pump 2
OFAN Outdoor Unit Fan Motor
CT Common Terminal
RE Relay for 3 Way Valve
EH 1 Electrical Heater 1
EH 2
EH 3
Electrical Heater 2
Electrical Heater 3
EV Electronic Expansion Valve
EHI/WF Electric Heater
Interruptor / Water Flow Switch
CSP Compressor
Stop Protection
LP Low Pressure Switch
HP High Pressure Switch
HDO External Signal Controls
Heat Pump Start and Stop
WTT
ROOM
PO
PG
FEED
RETURN
Water Tank
Temperature Sensor
Room
Temperature Sensor
Ambient
Temperature Sensor
Defrost
Temperature Sensor
Water Feed
Temperature Sensor
Water Return
Temperature Sensor
WTP Water
Temperature Thermostat
EH 4 Electrical Heater 4
PQ Exhaust
Temperature Sensor
CN 4
CN 6
CN17
CN8
CN 18
CN614
CN27
CN 14
CN 13
CN16-N
CN16-L
CN21-L CN21-N
CN19-N
CN19-L
CN5
CN15
CN23
CN24
LP
HP
EXPANSION
VALVE
OUTDOOR
MAIN PCB
5
5
BLUE
CN22
COMPRESSOR PRESSURE
RELIEF SWITCH
CSP
RED
CN 8
CN 35
CN 6CN 8
CN 4 CN 5
CN 27
T 1
PCB2
L-IN
T 2
T 3
T 4
COM NO COM NO COM NO
CN 1 CN 2 CN 3
N-IN
S
CN 14CN 15
3WV
7
8
1
3
2
4
5
6
A1 A2
WCP
4
FEED
RETURN
WTT
EHI / WF
ROOM
WCP 2
N
N
OFAN-L
OFAN-H
EH 4
K1
F2 [ 15A ]
F1 [ 15A ]
F3 [ 15A ]
EH 2
EH 1
EH 3
SB
HDO
BROWN
BLACK
RED
BLUE
BLACK
BLACK
BLACK
BLACK
BLUE
BLUE
BLACK
BROWN
BLACK
BLACK
BLUE/WHITE
WHITE
BLUE/YELLOW
BLACK
BLACK
BLACK
BLACK
BLACK BROWN
BLUE
WTP1
WTP2
RE
CT
AC
BLACK
BLACK
BLUE
BLUE
RED
BLUE
BLUE
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK BLUE
BLACK
4WV
PO
PG
PQ
EV
WUV
BROWN
WHITE
BLUE
K1 Air Break Switch
AC AC
Contactor
SB Switch Board
CM Compressor
PCB Circuit Board
3WV 3 Way Valve
4WV 4 Way Valve
WCP Water
Circulating Pump
WCP2 Water
Circulating Pump 2
OFAN Outdoor Unit Fan Motor
CT Common Terminal
RE Relay for 3 Way Valve
EH 1 Electrical Heater 1
EH 2
EH 3
Electrical Heater 2
Electrical Heater 3
EV Electronic Expansion Valve
EHI/WF Electric Heater
Interruptor / Water Flow Switch
CSP Compressor
Stop Protection
LP Low Pressure Switch
HP High Pressure Switch
HDO External Signal Controls
Heat Pump Start and Stop
WTT
ROOM
PO
PG
FEED
RETURN
Water Tank
Temperature Sensor
Room
Temperature Sensor
Ambient
Temperature Sensor
Defrost
Temperature Sensor
Water Feed
Temperature Sensor
Water Return
Temperature Sensor
WTP Water
Temperature Thermostat
EH 4 Electrical Heater 4
PQ Exhaust
Temperature Sensor
Reactor 1
Reactor 2
Capacitor 1
Capacitor 2