Ecoplus ZR9W Series User manual

DOMESTIC HOT WATER UNIT
ST AT US : He at in g
Ou tl et w at er t em p. 3 1℃
Ta rg et t em p. 5 7℃
24 /0 6/ 20 11 0 9: 28

CONTENT
1.Preface
..........................................
1
...... .. ...................... ..
5
1). Technical Data
4). Heat pump sketch map
2.Specification
........................ ........
3
.... ..........................
4
5
2). Appearance and Features
........................................
3). Working principle
..... ..............................
3
.......................................
6
5). Dimensions
7
7
7
3. Controller Introduction
................................
...... ...................
.... ...................................
7.Appendix
16
...............................
17
......................................
6.Maintenance
............... .................................
16
4.Installation Instruction
5.Trial Running
....... .................................
............... .................................
14
15
1).Functions of the controller
2). Wiring Diagram
.............................................
16
2).Operation
1). Control board access

Dear customers:
In order to use this machine safely, please read this user's manual carefully
before using and installation, especially pay attention to each notice remark
for usage and maintenance. Also keep it carefully for later use. Heat pump
water heater is a professional machine, it may cause damage or hazard when
wrong installed. Relevant installation and maintenance shall be done by
technical people. Please contact our installation service for reference.
1).When using for the first time, check if all the wiring are correct before you
connect the unit to power supply.
2).The specifications of fuse is: AC250V, 5A.
3).The appliance must be fitted with means for disconnection from the supply mains
having a contact separation in all poles that provide full disconnection under
overvoltage category III conditions, and these means must be incorporated in the
fixed wiring in accordance with the wiring rules.
4). The running range of the heat pump:
the ambient temperature range -7 ~ 43℃;
outlet water range:12 ~60℃
the pressure of water 0.1MPa~0.7MPa.
5).If the power cord is damaged, please replace a new one offered from factory by
professional technicians.
6).Power plug's rated current shall be in accordance with the model you buy.
7).The units must be ground wired. Never connect the ground line on neutral line or
water pipe.
8).Product shall be singly assigned to a electrical leakage protection power .
9).Hot water above 50℃ may be burned, we suggest that you mix cold water with
hot water from water tank for use.
10).Any equipment must not be inserted inside the heat pump unit, in case any
accident or abnormal operation.
11).For your safety, please DO NOT change or mend the heat pump water heater
yourself.
12).Closed water heaters shall be marked with a statement that a pressure-relief
device is to be fitted in the installation, unless it is in corporatthe appliance.
13).This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
Important warning:
1.PREFACE
1

14).The instructions shall contain the substance of the following: If the supply
cord is damaged, it must be replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid a hazard.
15). The water may drip from the discharge pipe of the pressure-relief device
and that this pipe must be left open to the atmosphere;the pressure-relief
device is to be operated regularly to remove lime deposits and to verify
that it is not blocked;
16). Transport using a forklift
When transported by a fork lift, the unit must remain mounted on the pallet.
The lifting rate should be kept to a minimum. Due to its top-heaviness, the
unit must be secured against tipping over.
To prevent any damage, the unit must be placed on a level surface!
17). Manual transport
For the manual transport, the wooden pallet can be used for bottom part.
Using ropes or carrying straps, a second or third handling configuration is
possible. With this type of handling, care must be taken that the max.
Permissible inclination angle of 60 degree is not exceeded.
Eposited and transportation
18)
1.PREFACE
Important warning:
Notes on environmental protection
This product may be at the end of his life rather than the normal household
waste will be sonderm at a collection point for the recycling of electrical
and electronic equipment will be delivered. The symbol on the product,
the instruction manual or packaging recalls.
The materials are recycled, according to their identification. With the reuse
of recycling or other forms of recovery of waste afford a important
contribution to protect our environment.
Please ask at the municipal disposal of the competent authority.
60
2
CAUTION: High center of gravity, low overturning moment!

2.SPECIFICATION
1).Technical Data
3
Notice:
1.The technology parameter is tested as below:20 for dry temperature
outdoor, 15 for wet temperature outdoor; inlet water 15 ;
outlet water 55 .
2.Refer to the label on the unit if the data different from this table.
℃
℃ ℃
℃
kw
L
W
A
V/Ph/Hz
℃
℃
3
m /h
Pa
mm
dB(A)
inch
mm
mm
kg
kg
Model
Heating capacity
Water tank volume
Power input
Running current
Power supply
Compressor number
Rated outlet water temperature
Max outlet water temperature
Air volume
Air pressure
Duct diameter
Noise
Water inlet size/outlet size
Net dimensions
Package dimensions
Net weight
Gross weight
Compressor type
2.8
200
760
3.6
220-230/1/50
1
Rotary
55
60
450
60
Φ150
49
G 3/4"
Φ560×1720
625×625×1860
83
102
2.8
250
760
3.6
220-230/1/50
1
Rotary
55
60
450
60
Φ150
49
G 3/4"
Φ640×1610
705×705×1750
86
105
2.8
300
760
3.6
220-230/1/50
1
Rotary
55
60
450
60
Φ150
49
G 3/4"
Φ640×1820
705×705×1960
97
120
2.8
400
760
3.6
220-230/1/50
1
Rotary
55
60
450
60
Φ150
49
G 3/4"
Φ640×2223
705×705×2350
107
129
ZR9W-200V ZR9W-250V ZR9W-300V ZR9W-400V

2) Appearance and Features
* Stainless steel tank: ensure clean
water to users.
Air inlet
Air outlet
Control panel
Water tank
* Easy installation and operation:
With LCD display, easy to handle
and
check all kind of temp and
operation information.
* High efficiency: smart design
make normal working efficiency
more than 300%.
Waste heat is useful heat
The standard heat exchanger of the hot-water heat pump enables direct
connection to a second heat generator, e.g. a solar heating system or a boiler.
Dehumidification in the recirculating air mode
Dehumidified air in the laundry room supports laundry drying and prevents
moisture-induced damage.
Cooling in the recirculating air mode
The room air is extracted from the storage room or a wine cellar,subsequently
cooled and dehumidified in the heat pump and finally re-introduced into the
room.Recreation rooms, boiler rooms or utility rooms areideal installation
sites. The air-ducts leading through warm sections must be insulated to prevent
the formation of condensation.
4
2.SPECIFICATION
ST ATUS : Heat ing
Ou tlet w ater t emp . 31℃
Ta rget t emp. 5 7℃
24 /06/ 2011 0 9:2 8

air from
outside
Low Temp.
fins
heat
exchanger
3).Working principle
Hot water
Compressor
Capillary
Compressor
Water tank
（the inner of hot water units)
Water heat
exchanger
Cold water
5
2.SPECIFICATION
Hot water outlet
Cold Water supply
Mixture control valve
Φ15 0 Fan drift Φ15 0 Fan drift
Cold water inlet
Single way valve
Draining outlet
Safety valve
Internal coil
Air inlet
Air outlet
High pressure switch
Low pressure switch
Compressor
Temp. Sensor
for outlet water
4).Heat pump sketch map
1 Water tank, heat exchanger specifications.
a. Water tank volume: 200L/250L/300L/400L
b. Hot water side Heat exchanger type: coil heat exchanger
c. Hot water side Heat exchanger material: aluminium
d. Air source side heat exchanger: pipes with Finned , 3 lines
e. Air source side heat exchanger: copper, aluminium
2 Brief description of the heat pump ON/OFF, for example,
Users can use the controller to adjust the parameter " 1.1" in
order to set the target outlet water temperature. When it
sensors the actual water temp is lower than the target by 5 C,
the machine start to run. The heat pump transfers the heat of
air into the water tank, makes the water temp raised. When
the sensor sensors the actual water temp is higher(or equal) to
the target, the machine stops. The heating has been finished.
There is 200L/250L/300L /400Lhot water to be used.
3 There should have installed a 0.7Mpa single pressure release
valve when install the heat pump. See Fig.
4 Lowest inlet water temp for normal working(initial water
temp): 7 C.
5. Please install a air duct pipe of 2-3 meter to air outlet on top
of the heat pump .
REMARK:

2145
1683
1523
640
450
250
32.5
*450
*1423
1523
1633
1423
40
Φ
T/P valve
5). Dimension(Measure：mm)
Hot water outlet
Condensation outlet
Electrical heating
Cold water inlet
E
V
C
B
A
D
Φ150
Φ150
Temp. Sensor for outlet water
Magnesium
F
G
T
H
P
Power supply
Circulation water
inlet
Circulation water
outlet
Draining outlet
6
2.SPECIFICATION
M
N
35mm
TYPE
SIZE
B
A
C
D
F
E
G
T
M
V
N
P
H
1650
1185
1025
450
250
32.5
*450
*925
1025
1135
925
40
Φ560
ZR9W-200V
1535
1070
910
640
450
250
32.5
*450
*830
910
1020
830
40
Φ
1745
1280
1120
640
450
250
32.5
*450
*1020
1120
1230
1020
40
Φ
Notice:The data with "*" mark only belong to unit has solar coil bulit in.
ZR9W-250V
ZR9W-300V
ZR9W-400V
ST ATU S: H eat ing
Ou tle t wa ter t emp . 31℃
Ta rge t te mp. 5 7℃
24 /06 /2 011 0 9:2 8

3.CONTROLLER INTRODUCTION
1).Function of controller
User Interface and Usage as the following：
7
S T A T U S : S t a n d b y
O u t l e t w a t e r t e m p . 3 1℃
T a r g e t t e m p . 5 5℃
2 4 / 0 6 / 2 0 1 1 0 9 : 2 8
S T A T U S : H e a t i n g
O u t l e t w a t e r t e m p . 3 1℃
T a r g e t t e m p . 5 5℃
2 4 / 0 6 / 2 0 1 1 0 9 : 2 8
Power
Menu
Escape
Operation Instruction:
All parameter settings can only be
adjusted /setted under stand-by state.
Stand by state
Start-up state
Fig.1
Fig.2
S T A T U S : H e a t i n g
O u t l e t w a t e r t e m p . 3 1℃
T a r g e t t e m p . 5 7℃
24/06/2011 09:28
Up
Down
Enter

8
3.CONTROLLER INTRODUCTION
2).Function Screen
2.1)Main Menu
2.1.1)Mode Select
Press "Prg" button from Main
Screen to access Function Screen,
see Fig.3.
M a i n m e n u
P a r a m e t e r
M a i n t e n a n c e
T i m e r
M o d e s e l e c t
U n i t s t a t u s
A u x h e a t i n g O f f
F a n m o d e O n
Press " " button to access
the Main Menu,see Fig.4.
Press " " to enter FIG. 5
interface , for changing the setting
of " Aux. Heating " and " Fan Mode"
function . You may change status
between ON and OFF by pressing
" ", press " ESC " to confirm
and return to main interface.
Fig.3
Fig.4
Fig.5
Press" " or " " to choose
setting of 4 functions, then press
" " to enter setting of chosen
function .

9
3.CONTROLLER INTRODUCTION
2.1.2)Unit Status
2.2.1)Operation
2.2)
see Fig.7.
Parameter
Choose "Parameter "from Function
Screen to access "Parameter "Screen,
then press "ENTER" button to access
the "Parameter "
1 . 1 O u t w a t e r 5 5℃
1 . 2 ▲T 1 ( h e a t i n g ) 5℃
Press " " or " " to move the
cursor to " Unit Status" , then
press " " to confirm and enter
to interface of FIG.6.
This interface display the current
real /actual running status , para-
meter data are not adjustable .
Press " " or " " to move the cursor
to "Operation" then press " " to
confirm and enter interface of FIG.8.
Press " " or " " to change the
parameter value , then press "ESC" to
confirm . Press " ESC" again to return
to last interface .
"Out water temp"adjustable range:10-60℃
"ΔT1 (heating)"adjustable range:2-15℃
Fig.6
Fig.7
Fig.8
T a n k t o p t e m p . 3 1℃
T a n k b o t t o m t e m p . 3 2℃
P i p e t e m p . - 3℃
E v a p . t e m p . 3 2℃
A m b i e n t t e m p . 2 5℃
S w e l l v a l v e 3 5 0 N
1 . 0 O p e r a t i o n
2 . 0 A u x h e a t i n g
3 . 0 D e f r o s t
4 . 0 S a v e
5 . 0 D i s i n f e c t i o n
6 . 0 S w e l l v a l v e
2.2.2)Aux Heating
2 . 1 S t a r t t e m p . 4 5℃
2 . 2 S t a r t d e l a y 3 0 m i n
Fig.9
Press " " or " " to move the
cursor to "Aux Heating" ,then press
" " to confirm and enter interface
of FIG.9.
Press " " or " " to choose
parameter value , then press " ESC"
to confirm changes , press "ESC" to
return to last interface.
"Start temp. adjustable range:30～90℃
"Start delay "adjustable range:0～90min
"

10
3.CONTROLLER INTRODUCTION
2.2.3)Defrost
2.2.4) Save
3 . 1 D e f . c y c . 3 0 M
3 . 2 D e f . i n 0℃
3 . 3 D e f . o u t 1 7℃
3 . 4 M a x t i m e 1 2 M
4 . 1 P o w e r s a v e 1
"Def.cyc"adjustable range:30～90M(M for minutes)
"Def.in"adjustable range:-30～0℃
"Def.out "adjustable range:2～30℃
"Max time"adjustable range:1～12M
Fig.10
Fig.11
2.2.5) Disinfection
2.2.6) Swell valve
5 . 1 T a r g e t t e m p . 7 0℃
5 . 2 M a i n t a i n t i m e 3 0 M
6 . 1 M o d e A u t o
6 . 2 O v e r h e a t 5℃
6 . 3 A d j u s t s t e p 3 5 0 N
"Target temp. "Adjustable value :30～70℃
"Maintain time "Adjustable value :0～90M Fig.12
Fig.13
Press " " or " " to move the cursor
to "Defros" ,then press " " to confirm
and enter interface of FIG.10. Press " "
or " " to choose parameter value , then
press " ESC" to confirm changes , press
"ESC" to return to last interface.
Press " " or " " to move the cursor
to " ave" ,then press " " to confirm
and enter interface of FIG.11.Press " "
or " " to choose parameter value , then
press " ESC" to confirm changes , press
"ESC" to return to last interface.
Adjustable value : "0" or "1"
S
Press " " or " " to move the cursor
to "Disinfection" ,then press " " to
confirm and enter interface of FIG.12.
Press " " or " " to choose parameter
value , then press " ESC" to confirm
changes , press "ESC" to return to last
interface.
Press " " or " " to move the cursor
to " well valve" ,then press " " to
confirm and enter interface of FIG.13.
Press " " or " " to choose parameter
value , then press " ESC" to confirm
changes , press "ESC" to return to last
interface.
S
" Mode" have " Auto" and "Manual " 2 options to choose.
"Over Heat "Adjustable value :-20～20℃
"Adjust step "Adjustable value :100～500N

11
3.CONTROLLER INTRODUCTION
2.3)Maintenance
1 : P 0 3 2 5 / 0 6 / 2 0 1 1 1 4 : 4 3
2 : E 0 3 2 5 / 0 5 / 2 0 1 1 1 7 : 3 2
Display the failure history record
failure error code
failure occur date and time
Fig.14
2.4)Timer
D a t e 2 1 / 0 6 / 2 0 1 1
C l o c k 0 9 : 3 2
T i m e r 1 o n √ 0 5 : 0 0
T i m e r 1 o f f √ 0 6 : 0 0
T i m e r 2 o n √ 1 6 : 0 0
T i m e r 2 o f f ×
Fig.15
Choose "TIMER " from FUNCTION
SCRREN to access "TIMER" screen,
then press ENTER"button to access
the " TIMER"
"
Press " " or " " to move the cursor
to "Date" or " Clock" ,then press " "
to confirm and enter interface of FIG.15.
Press " " or " " to choose parameter
value , then press " ESC" to confirm changes , press "ESC" to return to last
interface.
2.4.2)TIMER ON/OFF SETTING
You may set both "Timer 1" and" Timer 2" 2 period time at the same time .
2.4.2.1) TIMER 1 ON/OFF SETTING
Move the cursor to "Timer 1 on ", press " " once , "×" flashes . Then
press " " or " " , "√" flashes , pressor " " once , timer on function start
to take affect . At the moment, you may press " " or " " to set the time of
Timer On, then press " " or " ESC" to confirm .
Move the cursor to"Timer 1 off " , press " " once, "×" flashes . Then press
" " or " " , "√" flashes , press " " once , timer off function start to take
affect . At the moment, you may press " " or " " to set the time of Timer
Off, then press" " or " ESC" to confirm .
2.4.2.2) TIMER 2 ON/OFF SETTING
The setting operation is same as "TIMER 1 ON/OFF"
2.4.1) "Date" and " Clock" setting .

2.5) Malfunction Display
To show the malfunction code
(refer to malfunction code table)
12
3.CONTROLLER INTRODUCTION
During standby or running state ,
if malfunction happens to the
system, the system will stop to
show the malfunction code as
the following:
Ordinary malfunctions and Solutions:
The temp. sensor is open
or short circuit
Check and replace the temp. sensor for
the upper tank water
Communication failure
between wire controller
and main board;
Check the wire connection between
the wire controller and the main board
1,too much refrigerant in the unit
2,bad heat exchanger on the air
Check the water supply or tank whether
have enough water
1,the refrigerant is not enough
2,block on the filter or capillary
3,water flow is not enough
4,expansion sensor is broken
1.check if there is any leak and refill the gas
2.replace the filter or capillary
3.clean the water side exchanger or discharge
the air in the water loop
4.use new expansion valve
The electronic heating temp.
protect
1. discharge the redundant gas
2. clean the air side heat exchanger
The temp. sensor is open
or short circuit
Check and replace the temp. sensor for
the lower tank water
The temp. sensor is open
or short circuit
Check and replace the temp. sensor for
the evaporator inlet
The temp. sensor is open
or short circuit
The temp. sensor is open
or short circuit
Check and replace the temp. sensor for
the evaporator outlet
Check and replace the temp. sensor for
the Ambient
Upper tank water
temp. sensor failure
Defrosting Defrosting
indicate
Off
On
1 1 on off
3 on 1 off
4 on 1 off
6 on 1 off
flash
P01
P03
P04
E03
E01
Communication failure E08
High pressure protect
Low pressure protect E02 7 on 1 off
AUX-heating thermal
protect
8 on 1 off
Inlet evaporator. temp.
sensor failure
P02 2 on 1 off
Failure Controller on
the water tank
Indicator
light
Stand by
Unit running
Cause Solutions
Lower tank water
temp. sensor failure
Outlet evaporator
temp. sensor failure
On
P05 5 on 1 off
Ambient
sensor failure
temp.
A L A R M
P 0 1
B o t t o m s e n s o r f a i l u r e
Fig.16

Description and content:
Setting range /option
Stand-by status: Outlet water temperature:
Stand-by status: Target/setting water tempertaure
Running status: Outlet water temperature
Running status: Target /setting water temperature
available functions:Main
main menu: Mode select/Unit status
Mode select :
Aux heating
Fan mode
Unit status
Parameter
Maintenance
Timer
Alarm (P01~E08)see"Ordinary malfunction and
Solutions" table
Factory default setting on controller :
all parameters can only be adjusted under stand-by status.
1.0 Operation
1.1 Out water
1.2 ▲T1(heating)
2.0 Aux heaitng
2.1 Start temperature
2.2 Start delay
3.0 Defrost
3.1 Defrost cycle
3.2 Defrost in temperature
3.3 Defrost out temperature
3.4 Max time
4.0 Save
4.1 Power save
5.0 Disinfection
5.1 Target temperature
5.2 Maintain time
6.0 Swell valve
6.1 Mode
6.2 Over heat
6.3 Adjust step
Date
Clock
Timer 1 on
Timer 1 off
Timer 2 on
Timer 2 off
/
10~60°C
/
/
as select option
as select option
as select option
on/off
on/off
Tank top temperature.
Tank bottom temperature
Pipe temperature
Evaporator temperature
Ambient temperature
Swell valve
10~60°C
2~15°C
30~90°C
0~90 *5min
30~90 minute
-30~ 0°C
2~30°C
1~12 Minute
0(NO)/1(YES)
30~70°C
0~90Minute
Auto/Manual
-20~20°C
100~500 N
/
/
/
55°C
/
/
/
/
/
off
off
/
/
/
/
/
/
55°C
5°C
55°C
40 *5min
45minute
-7°C
13°C
8 Minute
1(YES)
65°C
30Minute
Auto
5°C
350 N
/
/
√ (YES)/ ×(NO)
√ (YES)/ ×(NO)
√ (YES)/ ×(NO)
√ (YES)/ ×(NO)
×(NO)
×(NO)
×(NO)
×(NO)
Actual tested value,not adjustable
Adjustable
Actual tested value,not adjustable
Actual tested value,not adjustable
/
/
/
Adjustable
Adjustable
Actual tested value,not adjustable
Actual tested value,not adjustable
Actual tested value,not adjustable
Actual tested value,not adjustable
Actual tested value,not adjustable
Actual tested value,not adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Actual running record, not adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
see "Ordinary malfunctions and Solutions"
Actual running record, not adjustable
//
Default
value Remark
Fig.
1
2
3
4
5
6
7
8
9
10
3.CONTROLLER INTRODUCTION
13

14
Please pay attention to following information before installation
1). Applied working temp of heat pump -7 ~ 43℃
2). Check whether the power supply and wire meet the standard of the unit.
3). Do not alter the power wiring or socket. Do not change the GND connection of the
system.
4). Do not insert hands or object into the vent of heat pump, it may cause dangerous or
damaged.
5).Ensure that water tank is full filled with water before turn the heat pump on.
6).The Maximum temp of outlet water can up to 60 ℃, strongly recommend to mix up
some water when using water.
7). Heat pump should be checked and maintained once a time every year by a qualified
technical people. And all power should be disconnected when servicing.
8).The magnesium stick should be replaced 1 or 1.5 year according to the water quality.
9).Please provide serial No. on the nameplate, when asking for after- sale service.
4.INSTALLATION INSTRUCTION
1). The air inlet and outlet should be free from obstacles and strong wind.
2). The bearing surface should be flat, able to bear weight of the unit and suitable for
installing the unit vertically without increasing noise or vibration.
3). No flammable gas is leaked nearby.
4). It is convenient for piping and wiring.
5). This heat pump unit can be installed at Garden, Garage , Balcony or other place,
but make sure there is enough space for proper installation and maintenance. Find
Reference installation pic in below.
Installation Instruction
≥800mm
≥600mm
STA TUS: He ating
Out let wat er temp . 31℃
Tar get tem p. 57℃
24/ 06/20 11 09:2 8

15
6). The air inlet and outlet are at the top side, main unit should not place at an open air.
Avoid the rain to enter the vents.
The air inlet and outlet can connect the φ150 air duct for air ventilation, see below pic.
≥800mm
≥600mm
≥800mm
≥600mm
≥800mm
≥600mm ≥500mm
(Fig.1) (Fig.2) (Fig.3)
4.INSTALLATION INSTRUCTION
Trial Running
1). Check if the heat pump is placed in a well ventilated and installed in a dry
place.
2). Check if the water tank is full of water, and open the water outlet tap till
water flows out.
3). Make sure the water pressure is normal (0.1Mpa ~0.7 Mpa).
4). Check the power supply is normal or not, (voltage range 220v +-10 %)
5). Check if all the equipped parts are well secured and well connected.
6). A suitable circuit breaker must be connected.
7). Check whether the condensation and drain pipe are connected well.
8). After power is switched on, check if the LCD controller displays normally.
5.TRIAL RUNNING
STAT US: Hea ting
Outl et wate r temp. 3 1℃
Targ et temp . 57℃
24/0 6/201 1 09:28
STATUS: Heating
Outl et wate r temp. 3 1℃
Targ et temp . 57℃
24/0 6/201 1 09:28
STAT US: Hea ting
Outl et wate r temp. 3 1℃
Targ et temp . 57℃
24/0 6/201 1 09:28

6.MAINTENANCE
16
Maintenance
Heat pump water heater is a high automatic equipment, please perform regular inspection termly.
If the unit can be long-term and efficiently maintenance, the operating reliability and service life
will have an unexpected increase.
1).The extra water filters should be cleaned regularly to ensure clean water quality of the system,
and to avoid damage caused by dirty water filter blocking.
2).Frequently check the power supply and electrical wiring system is solid or not, whether electrical
components are abnormally working, if yes, should timely maintenance and change for a new one.
3).Perform regular checks of the water supply system, check whether the tank safety valve, liquid
level controller and exhaust devices work properly, so as to avoid air into the system , and reduce
the water cycle volume, thus affect the heating function and operation reliability.
4).Check whether pumps and water valves are normal working or not, whether water tubing and
water pipes connector are leakage or not.
5).The unit and around should remain clean , well-ventilated. To maintain a good effect of heat
exchange, DON'T put things around the unit.
6).If the unit stops for a longer time, should drain all the water in the pipeline, cut off power supply,
and sets the protective equipment. When re-run the unit, complete inspection is a must before
reboot.
7).Water tanks need to remove the Water scale after some time (normally two months, according to
the water quality of local place). It can clean the scale by the drain hole.
1). Controlling board access
LED
RY1 RY2
CN1
AC-N
4
3
4
3
FAN
4WAY-VALVE
COMP.OUTPUT
AUX-HEATING
INPUT
PIPE TEMP.
E-HEATER SURFACE TEMP. PROTECT
OUTLET WATER TEMP.
INLET WATER TEMP. SETTING
LOW PRESSURE PROTECT
HIGH PRESSURE PROTECT
CONTROLLER
EMERGENCY SWITCH
INDICATOR LIGHT
OUT1 OUT2
CN19
CN4
POWER INPUT
AUX-HEATING
OUTPUT
ELECTRONIC EXPANSIVE VALVE
CN2
OUT3
OUT4
CN3
EVAPORATOR TEMP.
EXHAUST TEMP.
Appendix
7. APPENDIX

2). Wiring diagram
17
7.APPENDIX
Heat pump unit with 1kw Auxiliary electrical heating refer to diagram 1
Diagram 2 for unit with 1.5kw or 2kw Auxiliary electrical heating
WIRING DIAGRAM 2
COMPRESSOR LOW PRESSURE
SIDE TEMPERATURE
COIL TEMPERATURE
TANK UPPER AREA WATER
TEMPERATURE
TANK BOTTOM WATER
TEMPERATURE
CN4
CN3
CN1 CN2
MCU
OUT2OUT1
34 12
OUT3
OUT4
AC-N
COMPRESSOR
CM
SR
C
YLW/GRN
LN
YLW/GRN
TRANSFORMER
CONTROLLER
POWER 1PH 220V/50Hz
HIGH PRESSURE PROTECT
LOW PRESSURE PROTECT
FM
FAN MOTOR
4 WAY-VALVE
FU
E-HEATER
3
CONTACTOR
Temp sw
Temp sw
FU
80℃ Thermostat
95℃ Fuse protector
WIRING DIAGRAM 1
COMPRESSOR LOW PRESSURE
SIDE TEMPERATURE
COIL TEMPERATURE
TANK UPPER AREA WATER
TEMPERATURE
TANK BOTTOM WATER
TEMPERATURE
CN4
CN3
CN1 CN2
MCU
OUT2OUT1
34 12
OUT3
OUT4
AC-N
COMPRESSOR
CM
SR
C
YLW/
GRN
LN
YLW/GRN
TRANSFORMER
CONTROLLER
Temp-sw
HIGH PRESSURE PROTECT
LOW PRESSURE PROTECT
Temp-sw
FU
80℃ Thermostat
95℃ Fuse protector
FM
FAN MOTOR
4 WAY-VALVE
FU
E-HEATER
BLU
RED
3
POWER 1PH 220V/50Hz
Long distance demand
1 2
Long distance demand
1 2