Econo CAR-XB User manual

www.econo.nl
Manual heatpump model Econo – CAR-XB

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Index
1 Product introduction.................................................................... 3
1.1 Features..................................................................................................... 3
1.2 The figure of working principle................................................................ 4
2 Installation Instruction ................................................................ 5
2.1 Installation ................................................................................................ 5
2.2 Electrical diagram................................................................................... 10
2.3 System test...............................................................................................11
3 Panel operation........................................................................... 13
4 Function description .................................................................. 21
5 Malfunction protection and code.............................................. 26

1 Product introduction
1.1 Features
Convenient operation
Microelectronics control, all temperature settings are set by manufacturer. System tests water
temperature and adjust water temperature automatically, all user needs to do is just to press ON/OFF
button. System finishes the other operation automatically.
Excellent performance
Adopt world famous components, and the best match of system design. Scroll compressor with
high EER and low noise. High efficient heat exchanger insures the utmost using of system capacity.
Professional air conditioner water pump insures smooth quiet operation.
Models adopting two compressors system may operate with one compressor on condition of
partial load, energy saving design.
Easy to install
The system is designed with full consideration of insuring installation as easy as possible.
Refrigerant circle is a sealed complete system finished by manufacturer. No needs for users to
connect copper pipes or refrigerant charging. Hydraulic circle of system can be connected to
hydraulic terminals by two tubes.
Operating protection
System is designed with over voltage, under voltage, over load protection to insure safe
operation. The microelectronics controller can start or switch off the machine by judging the water
temperature. If the water temperature is lower than designed water temperature, the machine will be
switch off to avoid freezing. The microelectronics controller can also supervise the status of
components. Malfunction occurred would be transmitted to the controller and displayed through
malfunction code.
Flexible applicability
Compact design.System can run at conditions high ambient temperature or low ambient
temperature with high EER.
Convenient for maintenance.

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Suppose system is stopped by malfunction, special malfunction code will be displayed. The
cause may be found out easily.
1.2 The figure of working principle
Heat i ng f l ow
I nl et heat i ng wat er
Out l et heat i ng wat er
1 Compressor 2 Four-way valve 3 Tube in tube heat exchanger
4 Pressure switch 5 Pump 6 Drier and Filter
7 Liquid tank 8 Thermal Expansion Valves 9 Fan
10 Fin/tube heat exchanger 11 Gas-liquid segregator 12 Low－pressure switch
13 High－pressure switch

2 Installation Instruction
2.1 Installation
The installation must be done by qualified professionals. Make sure the installation
matching the following conditions.
The selection of installation location
The installation location must match the following conditions：
 Make sure the installation environment is open surrounding and good ventilation.
 This unit cannot be installed at hot and humid place like laundry.
 Released condensing air must not be sucked directly by the machine itself or other
machines；
 Suppose the machine is installed room inside and ventilation is not good, air duct is needed
to conduct condensing air outside. But the duct should be as short as possible to avoid big
pressure drop；
 The machine may be installed above the ground or the roof, keeping enough space between
the bottom plate and ground. In order to assure draining water effectively. And the bracket must
has enough carrying capacity;
 Hydraulic circle charged with clean water, no dust or oil. Soft water is recommended；
 Make sure no barrier around the unit, ensure the good ventilation of condensing air flowing.
 Make sure that the released air from condenser or unit operating noise will not impact the
living of neighbor.
 The unit must be installed firmly, and the bottom of unit must be horizontal (the gradient
must be less 5 degree)
 Keep enough space between the machine and wall. It is convenient for unit's repairment and
maintenance; and also you shouldn't lay the pipelines and top-ray tubes on the unit. The
suggested installation location as below. (Unit: mm)

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o v e r 1 0 0 0
over 1000
o v e r 1 0 0 0
over 300
over 1000
over 3000
s u c k i n s u c k i n
s uc k i n
exhaust
②
②②
② Attention of moving machine
 Fork lift stacker or crane is suggested to move the machine；
 The surrounding ambient temperature of unit during transportation must be among –25 to 55

 While suspending the machine, crane cable must be tie to machine tightly, keeping the machine
horizontal.
 disassemble the ground bolt in the pallet after the machine is well located, and take the pallet
aside。
Fixation
 Rubber gasket is recommended to reduce vibration and noise while rivet the bottom plate.
④Water pipe connection
 Heated water pipe must be packed with thermal isolation material to avoid thermal capacity loss or
dew dropping.
 Inlet connection pipe must be equipped with a water filter.
 The connection water pipes must be well matched (refer to specification parameters sheet).
c r a ne h oo k
c r an e c abl e
pr o ec t i n g c h i pb oar d

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 PVC or PP-R pipe is recommended to use as water pipe.
 Hot water pipe must be equipped with water pump 、Soft tie-in、a water filter、One way valve、
Flow meter、exhaust valve、Drain valve、Shutoff valve and so on。
 Heating pipe must be equipped with Soft tie-in、a water filter、One way valve、Flow meter、Drain
valve、Shutoff valve ,And then connected to underground inlet/outlet water pipe.
 Drain cock should be installed at the highest point of hydraulic circle. After the hydraulic circle is
connected completely, exhaust air inside hydraulic circle.
 Drain valve should be installed at the lowest point of water pipe.
Please note:
 The appliance shall be installed in accordance with national wiring regulations.
 Please make sure the following working conditions. the voltage can not be more or less than 10%
of rated voltage and the frequency can not be more or less than 1% of rated frequency. The height
above sea level should be less than 1,000 meters.
 Working water temperature available from 8～50, maximum water pressure 10 bar.
 Wires must be connected according to the instruction of electrical connection diagram.
 Also an all-pole air-break switch is needed and the pole clearance should be more than 3mm.
 The ground wire must be well connected. Ground wire can’t be connected to coal gas pipe, water
pipe or telephone wire.
 The supply power must have over voltage and low voltage protection equipment. Make sure no
phase disorder (L1 to R, L2 to S, L3 to T). Suppose phase disordered, system can’t be started, and no
display in controller.
 Drain electricity protection switch is needed for the system. No drain electricity protection switch
may cause electrical shock.
 The operation handle of power switch is suggested to be black or gray, and it can be fixed at OFF
status. The installation location of power switch is suggested among 0.6 to 1.7 m. electrical short
circuit protection is needed.
 If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a
similarly qualified person in order to avoid a hazard.

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dispose
 Do not dispose this product as unsorted municipal waste. Collection of such waste separately for
special treatment is necessary.
 Meaning of crossed-out wheeled dustbin: Do not dispose of
electrical appliances as unsorted municipal waste, use separate
collection facilities.
 Contact you local government for information regarding the
collection systems available.
 If electrical appliances are disposed of in landfills or dumps,
hazardous substances can leak into the groundwater and get into the
food chain, damaging your health and well-being.
 When replacing old appliances with new ones ,the retailer is legally obligated to take back your old
appliance for disposal at least free of charge.
 It is prohibited to dispose of this appliance in domestic household waste. for disposal there are
several possibilities:
a) The municipality has established collection systems, where electronic waste can be disposed of at
least free of charge to the user.
b) When buying a new product , the retailer will take back the old product at least free of charge.
c) The manufacturer will take back the old appliance for disposal at least free of charge to the user.
d) As old products contain valuable resources, they can be sold to scrap metal dealers.
Wild disposal of waste in forests and landscapes endangers your health when hazardous
substances leak into the ground-water and find their way into the food chain.
Warning
Warning
Any abnormal accident, such as burning smell, switch off the machine immediately. Contact
!
Warning
It is forbidden to clean the hydraulic circle by water pump inside system.
!
Warning
Make sure the machine has been power connected over 12 hours before starting the system. Otherwise,
machine could be damaged.
!

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Water system installation
chart
9
7
84
⑥
⑩
5
3
Pressure gauge Expansi on t ank
Indoor f an coi l
①
②
1 Air Source Heat Pump 2 Soft tie-in 3 Pressure drop switch 4 Check Valve
5 Flow Control Valve 6 Shutoff valve 7 Thermometer 8 Storage tanks
9 Circulating Pump 10 Y type filter
Hydraulic circle is recommended while installing Water Source Heat Pump units . The
installation of hydraulic circle can be finished according to above chart.
NOTES：
：：
：A、
、、
、Please do exhaust the air in water system before running the machine,
if you completely finished the circulating water system piping.
B、
、、
、The water flow switch must be installed at the straight pipeline section of the same
level, from the elbow, valves and other pieces of partial resistance to more than 5 times
the diameter.
C、
、、
、The pipe must be insulated closely in order to improve cooling (heating) effect and
energy conservation.
D、
、、
、The take-over of this unit must be installed with drainpipe to make it convient to
drain water inside the unit and prevent it from freezing.
Warning
Don’t touch the fan with hand or stick. It may hurt, and damage the machine.
!

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2.2 Electrical diagram.
34
Ai r swi t ch
NTSR
Fi r eWi r e C
Tr ans f or mer
CN3
CN4
CN2
CN1
CN4： sensor of c oi l t emp.
CN3： sensor of ambi ent t emp.
CN2： sensor of i ndoor backwat er t emp.
CN1： sensor of i ndoor out wat er t emp.
Sub -
Pr i mar y
El ect r i c heat er
Fan
4- val ve
COMPRESSOR
Oper at i on panel
KM3
C om p .1 Ind o or
pum p
0
54
3210
31
R (L )
S
T
KM2
XT
0
T R A N 1
T R O N 2
15μ F
32 33
39 35
①
①①
①unit wiring
Model Power Voltage (V) Power wire（
mm
2
）
Allowed max
current (A)
CAR-20XB
380V/3N～/50HZ
342-418 ≥3.0 12.0A
②
②②
② attentions of wire connecting
 All wires must be well connected.
 All wire should avoid touching refrigerant tube. If it is not avoidable, vibration protection and
isolation must be well done.
 All wire no touch to compressor or any other kinetic components.

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2.3 System test
○
○○
○
1Checking items before test run of system
1)、Seal test to make sure system is well sealed.
2)、Power source checking to make sure required voltage and current are available.
3)、Pressure inside hydraulic circle reaches to operating pressure（1-3）kgf/cm
2
。
4)、Make sure hydraulic system inside is clean and no jam.
5)、make sure hydraulic circle is fully filled with water and no air inside.
6)、Check to make sure all valves are switched on, well thermal isolated.
7)、Make sure all electrical wires are connected correctly according to wiring instruction, and wiring
screws are driven properly.
8)、Exhaust the air inside hydraulic circle by manual drain cock in hydraulic tube and drain cock on the
water pump.
9)、Check if there is visual damage caused during transportation.
10)、make sure all wiring correct.
②
②②
② Commissioning
1)、Make sure all above checking items are passed.
2)、Open controller cover, then connect the power source wires. If the power source is three phases, check
the phase order immediately. Red lamp on controller board will light while phase order is correct. Check if
water pump works smoothly. If there is scream from water pump, it means there is air inside the water
circle. In this case, stop the machine and exhaust air inside water circle. Then start machine again. The
compressor will start to run 3 minutes after the system is switched on. Check if compressor run at right
direction.
3)、Check if there is unusual noise from system by listening. If there is, switch off the machine and check
system. If no unusual noise, let system running.

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4)、If all checking items passed, keep system running.
5)、All hydraulic circle filters must be cleaned after finishing test run.
③
③③
③Normal operation：
：：
：
When the entire system to conduct a comprehensive inspection to confirm compliance with
requirements, may be an overall commissioning, pre-commissioning, the compressor should be
warm-up 12 hours a day.
1). connected to power, to open several air-conditioners, host delay to start after three minutes.
Fans, water pumps, steering is correct, if not immediately turn off the power, whether the current
measurement of the normal operation of the compressor, with or without abnormal noise.
2). inspection of each unit whether it is normal for the conversion of cold to observe pressure
gauge, pressure gauge to see whether it is normal.
3). to adjust the room air-conditioning fan coil water valve, so that each room up to a certain flow
of water.
4). in accordance with the requirements of your good three speed settings (temperature control)
switches work, and to observe compliance with the requirements of the work.
5). observation room temperature whether it meets the requirements. Commissioning period of
time to confirm no fault (usually 3 days) will begin normal use.
6). after the commissioning of water filter should be cleaned before normal use.

3 Panel operation
Settim
Time
△
△
▽
Chec Model
Temp.
Set

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1) On/Off function
□ Press“Running/Stop”button，the unit starting，the pilot lamp is lighting；
□ Then press“Running/Stop”button，the uint stop，the pilot lamp put out。
□ “On/off” is all storaged date。
2) Model conversion
□ Press“Model”button，choose the required model,“Refrigeration”or“Heating”
model.
□ “Refrigeration” displays snowflake symbol.
□ “Heating” displays sun symbol
3) Settime on/off
①Set 〖b7〗is for 0 which shows compages timing.
□ In the case of running，press“ Settime ”button，shutdown Settime ；
□ In the case of shutdown，press“ Settime ”button，start Settime ；
□ Press“ Settime ”button，then hour time flashing；
□ Press“time▽△”button，adjust hour of regular time
□ Then press“ Settime ”button，minute time flashing；
□ Press“Time▽△”，adjust minute of regular time.
□ Then press“ Settime ”button， Settime set s finished.
□ Then press“ Settime ”button，canceled Settime .
②Set 〖b7〗is for 1 which shows circulation timing.
□ Press“
Settime ”button，then hour time flashing，begin set

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settime -open′time.
□ Press“Time▽△”button， adjust hour of regular time
□ Then press“ Settime ”button，minute time flashing
□ Press“time▽△”button，adjust minute of regular time
□ Then press“ settime ”button，hour time flashing， settime -on′time set finished，
then set settime -off′time；
□ Press“time▽△”button，adjust hour settime -off′time
□ Then press“ settime ”button，minute time flashing
□ Press“time▽△”button，adjust minute Settime -off′time
□ Press“ Settime ”button， settime -off′time set s finished.
③Clock function set s
□ Press “ Settime ” button long by 5 seconds to enter the function of
hour- set ,then hour time flashing；
□ Press“Time▽△”button，adjust hour clock.
□ Then press“ Settime ”button，minute time flashing;
□ Press“Time▽△”button，adjust minute clock;
□ Then press“ Settime ”button，clock set s finished.
4) Check
□ Circulation timing(Set 〖b7〗is for 1)，press“Check”button displays practice time.
□ Press“Check”，enter the state of parameter check，then press“Time▽△”button
can check d1 d2 d3 d4 d5 parameters，then press“Check”button exit the
function of check。

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□ Press “ Time ▽ △ ” button can Check d1(outlet water temp.); d2(backwater
temp.);d3(out-environment temp.);d4 (Coil temp.1);d5(Coil temp.2).
5) Parameter set
①User-level parameter set(set temp.)
□ Press“ Set ”button enter user-level temperature set ，display“P1”and parameter,
and press“Time▽△”button can set the parameter of P1′parameter (refrigeration
set temp.).
□ Then press“Time△”button，display“P2” and parameter,and press“Time▽△”
button can set P2′parameter (Heating set temp.).
□ Then press“ Set ”button，and exit user-level parameter set .sets temperature
Table 1
Parameter Name
Parameter NameParameter Name
Parameter Name
Cell serial
number
Factory
Factory Factory
Factory
set
setset
set s
ss
s
Max
MaxMax
Max Min
MinMin
Min
Refrigeration setting temp. P1
P1P1
P1 12 30 〖bb〗
Heating setting temp. P2
P2P2
P2 40 〖bC〗 25
②Management-level parameter set
□ Press“ Set ”button long by 10 seconds ，enter management-level parameter set
menu (the password to enter).
□ Press “ Check ” button,it may choice [System function setting menu] 、 [The
protection of the temperature and time menu]、[Defrosting parameter menu]
or [password menu].
□ When the panel display b1,press“Time△”or“Time▽”button may choose the

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specific sets of Menu.b1enter b1 of menu, when the panel display c1,Press
“Time△”or“Time▽”button may enter c1 of Menu.
□ Press“Temp.△”or“Temp.▽”button may adjust the specific of parameters.
□ Press“ Set ”button，store data and exit.
System function setting b1 of menu
Parameter
Parameter Parameter
Parameter
Name
NameName
Name
Cell
CellCell
Cell
serial
serial serial
serial
number
numbernumber
number
Factory
Factory Factory
Factory
sets
setssets
sets
01
0101
01 O0
O0O0
O0
model of running b1
b1b1
b1 1(0-1) Heat Pump cooling just
The number of
compressor
b2
b2b2
b2 02(01-02)
Compressor the
Way of defrost
b3
b3b3
b3 1(0-1) Stop compressor Running
Enter the
conditions of
defrost
b4
b4b4
b4 0(0-1)
detection fin temperature
and judge
detection difference in
temperature and judge
model switch
choose
b5
b5b5
b5 0(0-1)
Standby and running can
be converted to run mode
running can not be
converted
Working state
power lost
keeping function
b6
b6b6
b6 0
When it has
Electric, then the controller
to maintain the original

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Parameter
Parameter Parameter
Parameter
Name
NameName
Name
Cell
CellCell
Cell
serial
serial serial
serial
number
numbernumber
number
Factory
Factory Factory
Factory
sets
setssets
sets
01
0101
01 O0
O0O0
O0
state of startup or
shutdown
choose
compages timing
or circulation
timing
b7
b7 b7
b7 0(0-1)
circulation
timing(circulation running
every 24 hours
compages timing(once
efficieccy in 24 hour)
Freezing water
protection
b8
b8b8
b8 1（0-1） Protection No protection
phase sequence
protect choose
b9
b9b9
b9 1(0-1) Protection No protection
Compressor cut
in temp.
bA
bAbA
bA 03(02-08)
A lower limit
cooling
bb
bbbb
bb 10(2-20)
The setting of a
ceiling heating
bC
bCbC
bC 50(30-80)
water
temperature
compensation
b
bb
bd
dd
d 0(-10-+10)
(when in antifreeze mode
without compensation)

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Parameter
Parameter Parameter
Parameter
Name
NameName
Name
Cell
CellCell
Cell
serial
serial serial
serial
number
numbernumber
number
Factory
Factory Factory
Factory
sets
setssets
sets
01
0101
01 O0
O0O0
O0
Protection of
times
b
bb
bE
EE
E 3(1-7)
Protect parameter of temperature and time Table 5
Parameter Name
Parameter NameParameter Name
Parameter Name
Cell
CellCell
Cell
number
numbernumber
number
Factory
Factory Factory
Factory
sets
setssets
sets
Max
MaxMax
Max Min
MinMin
Min
The protection due to too high
coil temp. in cooling mode.
C1
C1C1
C1 63℃ 80℃ 50℃
The protection due to too low
outlet water temp. in cooling
mode.
C2
C2C2
C2 4℃ 10℃ 2℃
Outlet water temperature is too
high to protect in heating
C3
C3C3
C3 58℃ 90℃ `40℃
Air-conditioning water temp.
difference too high protection
C4
C4C4
C4 10℃ 15℃ `2℃

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Parameter Name
Parameter NameParameter Name
Parameter Name
Cell
CellCell
Cell
number
numbernumber
number
Factory
Factory Factory
Factory
sets
setssets
sets
Max
MaxMax
Max Min
MinMin
Min
Heating water temp. difference
too high protection
C5
C5C5
C5 10℃ 15℃ 2℃
Electrical heating enter
antifreeze temp.
C6
C6C6
C6 5℃ 8℃ -2℃
Compressor enter antifreeze
temp.
C7
C7C7
C7 3℃ 8℃ -2℃
C8
C8C8
C8 10℃ 50℃ -19℃
Compressor start protection C9
C9C9
C9 3 minutes 15 minutes 3 minutes
Compressor running time
meeted conditionds
CA
CACA
CA 3 minutes 10 minutes 1 minutes
Shielded low pressure detection
time
Cb
CbCb
Cb 3 minutes 60 minutes 0 minutes
time for the duration of
protection
CC
CCCC
CC 3 Seconds
10
Seconds
1 Seconds
time of flow switch detection time
continuously
Cd
CdCd
Cd
10
Seconds
30
Seconds
1 Seconds
Interval of compressor start CE
CECE
CE
30
Seconds
90
Seconds
10
Seconds
The parameter of defrost Table 7