HEAT PUMP WATER HEATER - silver solutions 2492 cc

HEAT PUMP WATER HEATER

Installation & Instruction Manual

1.Introduction for product

2.Operation principles

3.Performance data

4.Installation

4.1. Dimensions

4.2. Free space for installation

4.3. About water tank

4.4. Pipeline connections

4.5. Pre-operation

4.6. Normal operation

5.Operation

5.1. Controller illustration

5.2. Selecting mode

5.3. Checking current parameters

5.4. Parameter overview (Table 1)

5.5. Parameter overview (Table 2)

5.6. Setting parameter

5.7. Setting time

5.8. Setting TIMER ON/OFF

5.9. Cancellation of TIMER ON/OFF

6. Failure code overview

7. Wiring diagram

8. Maintenance

1

2

3

4

5

6

6

7

7

7

8

8

9

9

10

11

12

1212

12

13-14

15-16

17

1

1.PRODUCTION INTRODUCTION

2

The compressor absorbs from the evaporator the low-temperature and low-pressure gas refrigerant,

compress the refrigerant into high-temperature and high-pressure gas, and the gas will enter the

condenser to exchange energy with water, during which, the gas is condensed in the condenser into

low-temperature liquid to discharge a lot of heat, which is absorbed by water to increase its temperature.

Then, when the high-pressure and low-temperature liquid throttles and reduces its pressure in expansion

valve, due to the fan in the evaporator, it absorbs energy from the surrounding air to evaporate into

low-pressure gas and then is pumped into the compressor to be compressed, thus entering another cycle

to produce hot water.

2.OPERATION PRINCIPLES

2.If any discrepancies of data is found between above list and nameplate on the heat pump please refer to the data on the nameplate as updated one.

20℃ 15℃ 40℃ 45℃

MeasuringConditions

Ambient Temperature Water Inlet/Outlet Temperature

Dry Bulb Wet Bulb Inlet Temp Outlet Temp

L

W

H

L

W

H

W

BTU/h

V/PH/Hz

W

A

L/h

℃

℃

inch

W

RPM

dB(A)

mm

mm

kg

220/1/50

ITS-4.7HDP4700

16000

1170

5.8

101

55

60

G 1 / 2

1

1

25

850

52

960

360

550

980

380

600

48

55

Power Supply

Input Power

Running Current

Hot Water Produced Volume

Thermostat Factory Setting

Maximum water temp

Water Connections

Compressor Quantity

Fan Motor Quantity

Fan Motor Input

Fan Speed

Noise

Rated Heating Capacity

Code

NetDimension

PackingDimension

WeightNet WeightGross Weight

L

W

H

L

W

H

ITS-17VD17000

58000

3600

17.2

290

55

60

G 1

1

1

90

850

58

660

660

960

740

700

990

118

126

3

3.PERFORMANCE DATA

380/3/50

ITS-24.5VD324500

83600

5000

9.3

420

55

60

G 1

1

1

150

750

58

660

660

960

740

700

990

123

132

4

ITS-4.7HDP

2 2.5mm 13AWG 24.0mm /11AWG

ITS-17VD ITS-24.5VD3

24.0mm /11AWG

Code

Specs

2.Installation 4.INSTALLATION

A

C

D

B

G H

FE

B SERIES

B C D E F G H

ITS-4.7HDP

A

280 360 935 940 55 155 520 550

Model

Size

Unit：mm

4.1. Dimensions

5

A SERIES

D

HG

F

E

D GE HF

Unit：mm

ITS-17VD

ITS-24.5VD3

960

960

660

660

190

190

660

660

60

60

Model

Size

4.2. Free space for installation

6

◎

◎

◎

Water tank should be in places with a surrounding temperature of more than 0℃.

It may be installed outdoors or on the roof of the building (depending on the size of the water

tank and the bearing ability of the building).

Do not place the water tank in places with polluting and corrosive gas.

4.3.About water tank

◎

◎

◎

◎

◎

◎

◎

◎

It should be installed in places with large space and good ventilation.

The installation position should guarantee smooth air exhale (for air inhale, refer to the follow

-ing figure).

Position close to drainage channel or vent to facilitate water discharge is strongly recommended.

The installation foundation or bracket should be strong enough for stable operation.

Make sure the unit keeps straight up without any inclination after installation.

Do not install the mainframe in place where there is pollution, corrosive gas, or accumulation

of dirt or fallen leaves.

Avoid to install heat pump close to inflammable and explosive places.

Make sure to observe the distance from hindrance shown by arrows in the following figure.

Air out

Air in

Air in

Not less than 500mm

Not less than 2000mm

Not less than 500mm

Not less than 500mm

Not less than 500mm from the top

Free space requirement for the horizontal heat pump

Air in

Air inAir in

More than 500mm

Not less than 500mm

Not less than 500mm

Not less than 1000mm

Not less than 3000mm from the top

Air out

Free space requirement for the vertical heat pump

Model: Vertical UnitModel: Horizontal Unit

（ -5）set the water temperature set the water temperature

ON

water temperature

OFF

7

Operation procedure of heating: start the machine the unit water pump operates water flow switch

test the fan operates the compressor operates (when it shuts off at low water level, the water supply

electromagnetic valve will be open to supply water).

Operation control:

◎

◎

The pre-operation of the unit must be performed by professional technicians!

◎

◎

◎

When the whole system is checked and proves to meet the requirements, pre- operation can be started.

Switch on to start the heat pump, and compressor will start automatically in 3 minutes. For three-

phased power supply unit, check first whether the phases are in right order. Measure the running

current of the compressor to see whether there is anything abnormal.

At least have heat pump running for 3 days for the pre-operation.

◎

◎

◎

◎

◎

The water leak pipe or water overflow pipe should be installed near the drainage channel or vent to

facilitate water discharge.

Water leak valve should be installed in the water leak pipe.

Before the electromotive electromagnetic valve in system pipeline, a check valve should be installed

for future check.

The customer's water pressure should be lower than 0.6MPa.

ll the pipelines should use metallic pipes (such as stainless steel, steel pipes with plastic or stainless

steel linings, or thin-wall copper pipe). If plastic pipes are used (such as PP-R pipe and ABS pipe) the

expansion and contraction of the pipes

between mainframe and water tank should be taken into account.

In winter, system water supply valve and break valve should be protected against the cold (based on

winter temperatures

in local area) in case the water supply pipe and valve should be frozen to break in winter.

4.4. Pipeline connection

4.6. Normal operation

4.5. Pre-operation

8

Standby status

5.1. Controller illustration:

When heat pump is supplied with power, controller will display full screen, shows that it’s already

connected. If connection fails in 10 seconds, please check connections of communication cable or replace

anther controller.

◎ Under standby status controller displays time and running mode.

◎ Under running status controller displays time, water temperature in the tank and running mode.

Running statusActual tank water temp.

5. OPERATION

9

5.2. Selecting mode

◎ Press ＂M＂to select heating mode.

Remarks: Except heating mode is available,

other modes are in valid.

5.3. Checking current parameter

◎ Under standby status or running status press ＂＂or＂＂ controller will display from Parameter 0

to Parameter 13 in turn with current value. See more in table on next page.

◎ In about 5 seconds display will return to standby or running status interface.

10

Remarks:1 System amount is referred to different models to be single or dual system.

2 Parameter 12 : It must connect the copper thermostat in attachment bag to the PCB “Tank temperature ” connector,

before start up the heat pump, or controller will display PP1 (Refer to error code) and heat pump will not start

5.4. Parameter table overview (Table 1)

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

10

11

12

13

Parameter Description Range Default Note

Reserved

Setting desired water temp.in water tank

Defrosting cycle

Temp. point of entering defrosting

Temp. point of stopping defrosting

Defrosting duration

Reserved

Memory recovery after power failure

Electronic expansion valve control (manual/automatic)

Different working mode of water pump

Reserved

Target superheat setting

Manual control of EE valve

Inlet water temperature

Discharge gas temperature

System coil temperature

Return-gas temperature

Ambient temperature

Reserved

Actual steps number of step motor in EE valve

1-30℃

10-60℃

30-90Min

0--30℃

2-30℃

1-12Min

1-2

0-1

0-1

0-1

0-1

-F-F

0-50

-9~90℃

-9~90℃

-9~90℃

-9~90℃

-9~90℃

-9~90℃

0-50

15℃

40℃

45Min

-7℃

13℃

8Min

2

1(with memory)

1(automatic)

1

0

2

35

Adjusted by technician

Adjustable





Reserved




Reserved



Measured value

Measured value

Measured value

Measured value

Measured value

Measured value

Measured value

Αpplicable models:

ITS-4.7HDP

11

Remarks:1 System amount is referred to different models to be single or dual system.

2 Parameter 12 : It must connect the copper thermostat in attachment bag to the PCB “Tank temperature ” connector,

before start up the heat pump, or controller will display PP1 (Refer to error code) and heat pump will not start

5.5 Parameter table overview (Table 2)

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

10

11

12

13

Parameter Meaning Scope Default Note

Setting of inlet temp. to start electric auxiliary HT1(optional)

Setting desired water temp.in water tank

Defrosting cycle

Temp. point of entering defrosting

Temp. point of stopping defrosting

Defrosting duration

System quantity

Memory recovery after power failure

Electronic expansion valve control (manual/automatic)

Reserved

Winter anti-freeze protection

Target superheat

Manual control of EE valve

Inlet water temperature

Outlet water temperature

System coil temperature

Return-gas temperature

Ambient temperature

Water temperature in the tank

Actual steps number of step motor in EE valve

1-30℃

10-60℃

30-90Min

0--30℃

2-30℃

1-12Min

1-2

0-1

0-1

0-1

0-1

-F-F

0-50

-9~90℃

-9~90℃

-9~90℃

-9~90℃

-9~90℃

-9~90℃

0-50

15℃

40℃

45Min

-7℃

13℃

8Min

1 or 2

1(with memory)

1(automatic)

1

0

2

35


Adjustable





Fixed by factory







Measured value

Measured value

Measured value

Measured value

Measured value

Measured value

Measured value

Αpplicable models:


12

◎ Press ＂＂controller displays from Parameter 0 to

Parameter 13 in turn with current actual value.

◎ Press SET to activate, controller displays flashing value.

◎ Press ＂＂ or ＂＂to change value.

◎ Press SET again to confirm.

◎ Display will show confirmed value and return to standby

or running status interface in about 5 seconds.

NOTE: All parameters can be changed under standby or running status.

5.7. Setting time

◎ Press SET to activate time setting.

◎ When data of hour is flashing move＂＂ or ＂＂ to fix it and confirm setting by pressing SET again.

◎ When data of minute is flashing move＂＂ or ＂＂to fix it and confirm setting by pressing SET again.

5.8. Setting TIMER ON/OFF

◎ Press to activate timer setting for ON, 00:00 and ON icon will be flashing together.

◎ Press again, controller displays with flashing hour and ON icon only, move ＂＂ or ＂＂to

fix the hour on the timer to start on the unit.

◎ Operate in the same way to set the minute on the timer.

◎ After TIMER ON is completed continue to press to

activate timer OFF setting, 00:00 and will be flashing

with OFF icon, set and operate in the same way .

◎ Press for final confirmation.

◎ Controller will display with ON and OFF if the timer

has been set.

◎ Press to activate, timer and ON/OFF will be both flashing.

◎ Press SET to cancel timer.

◎ When ON an d OFF doesn’t display on the controller timer has been cancelled.

5.9. Cancellation of TIMER ON/OFF

NOTE: TIME AND TIMER SETTING CAN BE CHANGED UNDER STANDBY OR RUNNING STATUS.

5.6. Setting Parameters

13

Wire controller

PP1

PP2

PP3

PP4

PP5

PP7

EE1

EE2

EE3

EE4

EE8

☆●(1 flashes & 1 pause)

☆☆●(2 flashes & 1 pause)

☆☆☆●(3 flashes & 1 pause)

☆☆☆☆●(4 flashes & 1 pause)

☆☆☆☆☆●(5 flashes & 1 pause)

☆☆☆☆☆☆●(6 flashes & 1 pause)

☆☆☆☆☆☆☆●(7 flashes & 1 pause)

☆☆☆☆☆☆☆☆●(8 flashes & 1 pause)

☆☆☆☆☆☆☆☆☆● (9 flashes & 1 pause)

☆☆☆☆……(continuous flashes)

PP6

Communication failure

Defrosting

Standby status


between PCB and controller

Check if connection in good condition

or replacement needed.

Check if EE valve broken and

replacement needed.

1.Check if dry filter jammed.

2.Failure of EE valve.

3.Lack of refrigerant.

1.Too much refrigerant filled

in.

2.Liquid-like refrigerant

flows from evaporator into

compressor.

3.EE valve failure.

Too low ambient temp. and water entering temp.

1.Discharge certain refrigerant.

2.Check and adjust EE valve, make

sure EE valve sensor is well

connected with return gas pipe.

3.Check if EE valve broken and

replacement needed.

Temp. sensor broken or not enough refrigerant.

Temp. sensor short circuitor open circuit.

Check if temp. sensor in goodconditions, or replace relatedsensor.

1.Check,repair or replace filter.


replacement needed.

3.Refill certain refrigerant.

No action required.

Replace temp. sensor orfill in certain refrigerant.

Reserved

Reserved

Low working pressure protection

High working pressure protection

Winter anti-freezeprotection

Reserved

Ambient temp.sensor failure

Return gas temp.sensor failure

System coil temp.sensor failure

Discharge gas temp.sensor failure

Inlet water temp. sensor failure

Running status

OFF

OFF

ON

OFF

Protection/Failure PCB LED indicator Possible cause Check & solution

6. FAILURE CODE OVERVIEW

Applicable models:

ITS-4.7HDP

14

Wire controller

PP1

PP2

PP3

PP4

PP5

PP7

EE1

EE2

EE3

EE4

EE8

☆●(1 flashes & 1 pause)

☆☆●(2 flashes & 1 pause)

☆☆☆●(3 flashes & 1 pause)

☆☆☆☆●(4 flashes & 1 pause)

☆☆☆☆☆●(5 flashes & 1 pause)

☆☆☆☆☆☆●(6 flashes & 1 pause)

☆☆☆☆☆☆☆●(7 flashes & 1 pause)

☆☆☆☆☆☆☆☆●(8 flashes & 1 pause)

☆☆☆☆☆☆☆☆☆● (9 flashes & 1 pause)

☆☆☆☆……(continuous flashes)

PP6


Defrosting

Standby status


between PCB and controller

Check if connection in good condition

or replacement needed.

Check if EE valve broken and

replacement needed.

1.Check if dry filter jammed.

2.Failure of EE valve.

3.Lack of refrigerant.

1.Too much refrigerant filled

in.

2.Liquid-like refrigerant

flows from evaporator into

compressor.

3.EE valve failure.

Too low ambient temp. and water entering temp.

1.Discharge certain refrigerant.

2.Check and adjust EE valve, make

sure EE valve sensor is well

connected with return gas pipe.


replacement needed.

Temp. sensor short circuitor open circuit.

Check if temp. sensor in goodconditions, or replace relatedsensor.

1.Check,repair or replace filter.


replacement needed.

3.Refill certain refrigerant.

No action required.

Replace temp. sensor orfill in certain refrigerant.

Phase protection

Reserved

Low working pressure protection

High working pressure protection

Winter anti-freezeprotection

Reserved

Ambient temp.sensor failure

Return gas temp.sensor failure

System coil temp.sensor failure

Outlet water temp.sensor failure

Inlet water temp. sensor failure

Running status

OFF

ON

OFF

Protection/Failure PCB LED indicator Possible cause Check & solution

Wrong phase or lack of phase Check wire connections if phases are connected in right order.

☆☆☆ ☆☆☆☆☆☆● (10 flashes & 1 pause)

☆Reserved EE5

Temp. sensor broken or not enough refrigerant.

☆☆☆ ☆ ☆☆☆☆☆● (11 flashes & 1 pause)

☆ ☆


Applicable models:

15

ITS-4.7HDP

ITS-17VD

7.WIRING DIAGRAM

POWER SUPPLY

BLURED

Y/GBLU RED BLUBLUWHI BLK BLU Y/G

RED

ORG

BLK BLU REDY/G

Wire controller

FQ

Electric heater of

L

N

A1 A2

KM

external tank

N2

LL

heaterElectric 4-Way

valveMiddleFanFan

High

OUT2OUT1

Exhaust temp

Return gas tempAmbient tempCoil temp

Tank sensor connector

Transformer

N5

D01

D01

N4

N6

MPP

1110 0807

P

05

42

30

32

03

N

PUMP

N1

FNCM

NL12V/AC220V/AC

LP HPP

N1

B01

4-Way Valve

Hig

h pressu

resw

itchL

ow

pressu

resw

itch

BLURED

wire contr ol ler

RY7

BLUBLU

PUMPCOMP

RY6

4-Way val ve Electr on icexp anding val ve

Transfor mer

P P

07081011

Lo

wp

ressure

sw

itch

sw

itch

Hig

hp

ressure

03

32

30

42

05

Tank sen sor connector

Coi l temp

Ambien t temp

Back gas temp

Exh aus t temp

P

6

N1

N2

FNCM

NL 12V/AC220V/AC

AC-N

Electronic

RED

WHI BLK

SR C

C

C

BLU

ORG

BLK BLU RED Y/GY/G

L

L

N6 N5

D01

MP

K

PUMP

REDBLUY/G

valve4-Way Electric

heater HingFan

MiddleFan

2

C2

K

2

15

Rf

5

FQ

Electric heater of

L

N

A1 A2

KM

external tank

16

ITS-24.5VD3

MP

4- Wa yva lv eCM

U V W

N1

N

A1

A2

R S T

B

1 3 5

2 4 6

RE D BL K WH I

L1 1 L2 1 L3 1

WH IBL KRE D BU L

C NBA

AC 38 0V /5 0H z

FMEl ec tr on icex pa nd in g

va lv e6

D0 1B0 1

N1N5

L

L

CO MP PU MP

El ec tr iche at er

4- Wa yva lv e

Hi ngFa n

Mi dd leFa n

El ec tr on ic ex pa nd in g va lv e

Tr an sf or me r

22 0V/ AC 12 V/ AC

121110090807060504030201 13

HPLP

High pressure switch

Low pressure switch

07081011

Co il te mpAm bi en t te mpRe tu rn ga s te mp

Ex ha us t te mp

Ta nk se ns orco nn ec to r

23

22

21

20

18

19

17

14

16

15

03

32

30

42

05

PO WE R SU PP LY

Wi reco nt ro ll er

N4

D0 1

Wa te r pu mp

05

05

FQ

Electri c heater of

L

N

A1 A2

KM

external tank

8. MAINTENANCE

.

.

.

.

.

.

.

.

.

.

.

.

The heat pump water heater is highly automatic equipment, which is checked periodically over its

unit state in application. If the unit can be maintained effectively for a long time, the operation reliability

and lifespan of the unit will be greatly enhanced.

1 The water filter installed outside the unit should be cleaned periodically to ensure a clean water supply

in the system in case the unit may be damaged due to the blocked dirty water filter.

2 In using and maintaining this unit, the customer should pay attention to this point: all the safety

protection equipment in the unit has been set properly before leaving the factory, therefore, it is for

-bidden to adjust them without permission.

3 Check frequently whether the power supply and electrical system connection of the unit are firm and

whether the electrical components operate abnormally. If there is, repair or replace in time.

4 Check frequently whether water supply of the system, water tank safety valve, liquid level controller,

and air discharge equipment operate normally in case air should enter the system to lead to decreased

water cycle so as to influence the heating ability of the unit and reliability of unit operation.

5 Check whether water pump and water pipe valves can operate normally, and whether there is any leak

-age in water pipeline and water pipe connections.

6 The surrounding of the unit should be kept clean with good ventilation. Clean regularly (1-2 months)

the air side heat exchanger to maintain a good heat exchange effect.

7 Check frequently the operation state of each part of the unit. Check whether there is oil dirt in unit

pipeline connection and air inhale valve to ensure there is no leakage of the unit refrigerant.

8 Do not pile any other object around the unit in case the air exhale should be blocked. The surrounding

of the unit should be kept dry and clean with good ventilation.

9 If the machine will be stopped for a long time, discharge the water in unit pipeline, cut off power supply,

cover with protection shield, and check the system comprehensively before starting the unit to operate

again.

10 If there is anything wrong with the unit and the customer can not solve it, make a phone call to local

special service department of our company so that we could send professional staff to fix it in time.

11 For cleaning of mainframe condenser, we suggest that 50℃-60℃ hot phosphate liquid with a density

of 15% can be used to clean it. Start the mainframe-equipped cycle water pump to clean for three hours

and then clean with running water 3 times. (In pipeline installation, it is suggested to reserve a tee

connection and block one of the connection with silk block) so as to connect pipes in cleaning. It is

forbidden to use corrosive detergent to clean the condenser.

12 Furring should be removed from the water tank after using for a period of time (usually two months

depending on water quality in local area).

17

Documents

HEAT PUMP WATER HEATER - silver solutions 2492 cc