ITS Telecom ITS-4.7HDP, ITS-24.5VD3, ITS-17VD Installation Instructions Manual

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

7

8

9

10

11

12

12 12

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 t h e refrigerant i n t o high-temperature and h i g h -pressure gas, a n d the gas w i l l enter the

co ndense r to exc hange ene rgy with wat er, dur ing which, the ga s is con densed in the cond enser int o

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

va lve, due to the fan in t he evapor ator, i t ab sorbs ene rgy from the sur roundi ng a ir t o ev apora te i nto

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 d is crepancies of d at a is found betwee n ab ove list and name pl ate on the heat pum p pl ease refer to the d at a on the namepl at e as u pdated one.

2 0℃

1 5℃

4 0℃

4 5℃

Measuring Conditions

Ambi ent Temperature Wat er Inlet/Outlet Temperature

Dry Bul b

Wet Bu lb

Inlet Temp Outle t Temp

L

W

H

L

W

H

W

BTU/h

V/PH/Hz

W

A

L/h

℃ ℃

inch

W

RPM

dB(A)

mm

kg

220/1/50

ITS-4.7HDP

4700

16000

1170

5.8

101

55

60

G 1 / 2

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

Ra ted He at ing C a pa cit y

Code

Net

Dimension

Packing

Dimension

Weight

Net Weight Gross Weight

L

W

H

L

W

H

ITS-17VD

17000

58000

3600

17.2

290

55

60

G 1

1

90

850

58

660

960

740

700

990

118

126

3

3.PERFORMANCE DATA

380/3/50

ITS-24.5VD3

24500

83600

5000

9.3

420

55

60

G 1

1

150

750

58

660

960

740

700

990

123

132

4

ITS-4.7HDP

2

2.5mm 13AWG

2

4.0mm / 11AWG

ITS-17VD ITS-24.5VD3

2

4.0mm / 11AWG

Code

Spec s

2.I nstal latio n

4.INSTALLATION

A

C

D

B

G

H

F

E

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

H

G

F

E

D

G

E HF

Unit：mm

ITS-17VD

ITS-24.5VD3

960

660

190

660

6606060

Model

Size

4.2. Free space for installation

6

◎

Water t a n k shou l d be i n places w i th a s u r r ou n di ng tempe r a t u r e of m o r e than 0℃.

It m a y be i n s t a ll e d outdoo r s or o n the r o o f of t h e build i n g (depen d i n g on t h e size o f the w a t er

ta n k and t h e bearin g ability o f the b u i ld i ng ) .

Do n o t place t h e water t an k in p l a ce s with p o l lu ti n g and c o r ro s iv e gas.

4.3.About water tank

◎

It should b e instal l e d in p l a c es with l ar g e space a n d good v e nt i la ti o n.

The inst a llation posi t i on should guara n tee smooth air exh a l e (for air inhale , r e f er to the follow

-i n g figure) .

Position close to drainage chann el or vent to facilitate water di scha rge is st rongly recommended.

The inst a llation foun d a tion or bracket sh o uld be strong enou g h f or stable opera t i on.

Ma k e sure t h e unit k ee ps strai g h t up w i t h o ut any i n cl i na ti o n after i ns t al l at i on .

Do not i n s t a l l the m a i nf r am e in p l ac e where there i s pollution, corro sive gas, or accumulation

of dirt or falle n lea ves.

Avo id to i n s ta ll heat p u mp clo s e t o i n flammable an d e x plosive plac e s .

Ma k e sure t o obser v e the d i s t a nc e from hindrance shown b y arrows i n the f o l lo w in g figu r e .

Air o ut

Air i n

Not l ess tha n 500mm

Not l ess tha n 2000m m

Not l ess tha n 500mm

Not l ess

tha n 500mm

Not l ess tha n 500mm f rom the t op

Fre e space r equir ement f or the ho rizon tal hea t pump

Air i n

Mor e than 50 0mm

Not l ess tha n 500 mm

Not l ess tha n 1000m m

Not less than 3000mm from the top

Air o ut

Fre e space r equir ement f or the ve rtica l heat pu mp

Mod el: Vertic al Unit

Mod el: Hor izont al Unit

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

O N

water temperature

O FF

7

Operation procedure of heati ng: 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 ru nning

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 t he 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.

Run ning st atus Actu al 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

Remark s: 1 System amount i s re ferred to different m od els to be single or d ua l system.

2 Parame te r 12 : It must connec t th e copper thermo st at in attachmen t ba g to the PCB “Tank temperatur e ” co nnector,

before s ta rt up the heat pump , or c ontroller wil l di splay PP1 (Refe r to e rror code) an d he at p ump will not st ar t

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

Para meter

Desc ripti on

Rang e

Defa ult

Note

Reserv ed

Settin g de sired water tem p. in water tank

Defros ti ng cycle

Temp. point of ente ri ng defrosting

Temp. point of stop pi ng defrosting

Defros ti ng duration

Reserv ed

Memory r ec overy after pow er f ailure

Electr on ic expansion va lv e control (manu al /automatic)

Different work in g mode of water pum p

Reserv ed

Target s up erheat settin g

Manual c on trol of EE valve

Inlet wa te r temperature

Discha rge gas te mp erature

System c oi l temperature

Return -g as temperatur e

Ambien t te mperature

Reserv ed

Actual s te ps number of step m ot or in EE valve

1-30℃

10-60℃

30-90Min

0--30℃

2-30℃

1-12Min

1-2

0-1

-F-F

0-50

-9~90℃

0-50

15℃

40℃

45Min

-7℃

13℃

8Min

2

1(with memory)

1(automatic)

1

0

2

35

Adjusted by technician

Adjustable

Adjusted by technician

Reserved

Adjusted by technician

Reserved

Adjusted by technician

Measured value

Αpplic ab le models:

ITS-4.7HDP

11

Remark s: 1 System amount i s re ferred to different m od els to be single or d ua l system.

2 Parame te r 12 : It must connec t th e copper thermo st at in attachmen t ba g to the PCB “Tank temperatur e ” co nnector,

before s ta rt up the heat pump , or c ontroller wil l di splay PP1 (Refe r to e rror code) and he at p ump will not st ar t

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

Para meter

Mean ing

Scop e

Defa ult

Note

Settin g of i nlet temp. to sta rt e lectric auxil ia ry HT1(option al )

Settin g de sired water tem p. in water tank

Defros ti ng cycle

Temp. point of ente ri ng defrosting

Temp. point of stop pi ng defrosting

Defros ti ng duration

System q ua ntity

Memory r ec overy after pow er f ailure

Electr on ic expansion va lv e control (manu al /automatic)

Reserv ed

Winte r an ti-freeze pro te ction

Target s up erheat

Manual c on trol of EE valve

Inlet wa te r temperature

Outlet w at er temperatur e

System c oi l temperature

Return -g as temperatur e

Ambien t te mperature

Wate r te mperature in th e ta nk

Actual s te ps number of step m ot or in EE valve

1-30℃

10-60℃

30-90Min

0--30℃

2-30℃

1-12Min

1-2

0-1

-F-F

0-50

-9~90℃

0-50

15℃

40℃

45Min

-7℃

13℃

8Min

1 or 2

1(with memory)

1(automatic)

1

0

2

35

Adjusted by technician

Adjustable

Adjusted by technician

Fixed by factory

Adjusted by technician

Measured value

Αpplic ab le models:

IT S- 17V D IT S-2 4. 5VD 3

12

◎ Press ＂＂controller displays from Parameter 0 to

Parameter 13 in turn with curren t 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 a bout 5 seconds.

NOTE: All parameters ca n be changed under sta ndb y 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 th e same way .

◎ Press for final confirmation.

◎ Controller will display with O N 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 : TI ME AND TIMER SETTING CAN BE CHANGED U NDER STANDBY OR RUNN ING STATUS.

5.6. Setting Parameters

13

Wire

controlle r

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

Communica ti on failure

Defrostin g

Standby sta tu s

Com munic ation f ailur e bet ween PC B and con troll er

Check if connection in good condition or re pla ce ment ne ed ed.

Che ck if EE va lve bro ke n and rep la cem en t neede d.

1.C heck if d ry filt er jamm ed .

2.F ailur e of E E val ve .

3.L ack of re fr ige ra nt.

1.To o much re fr ig er an t fi ll ed in.

2.L iquid -like r ef rig er ant flo ws from e va por at or in to com press or.

3.E E valve f ailur e.

Too low amb ie nt te mp. and wat er ente ri ng te mp .

1.D ischa rge cer tain re frige ra nt.

2.C heck an d adjus t EE valv e, make sur e EE v alv e se nsor is w ell con necte d with re tu rn ga s pi pe.

3.C heck if E E valve b roken a nd rep la cem en t neede d.

Temp. sen so r bro ken o r not eno ugh ref ri ger an t.

Temp. sen so r sho rt c irc uit or op en c irc uit.

Che ck if tem p. sens or in goo d con ditio ns, or re pla ce rela te d sen sor.

1.C heck, repai r or repla ce f ilt er.

2.C heck if E E valve b roken a nd rep la cem en t neede d.

3.R efill c ertai n refri ge rant.

No ac tion re qu ire d.

Rep lace te mp. sen sor or fil l in cert ain ref riger an t.

Reserv ed

Low work in g pressure protection

High wor ki ng pressure protection

Winte r an ti-freeze protec ti on

Reserv ed

Ambien t te mp. sensor f ai lure

Return g as t emp. sensor f ai lure

System c oi l temp. sensor f ai lure

Discharge gas temp. sensor f ai lure

Inlet wa te r temp. sensor f ai lure

Running sta tu s

OFF

ON

OFF

Prote ct ion/ Fai lu re

PCB LED indic at or

Possible ca us e

Check & solut io n

6. FAILURE CODE OVERVIEW

Applic ab le models:

IT S- 4.7 HD P

14

Wire

controlle r

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

Communica ti on failure

Defrostin g

Standby sta tu s

Com munic ation f ailur e bet ween PC B and con troll er

Check if connection in good condition or re pla ce ment ne ed ed.

Che ck if EE va lve bro ke n and rep la cem en t neede d.

1.C heck if d ry filt er jamm ed .

2.F ailur e of E E val ve .

3.L ack of re fr ige ra nt.

1.To o much re fr ig er an t fi ll ed in.

2.L iquid -like r ef rig er ant flo ws from e va por at or in to com press or.

3.E E valve f ailur e.

Too low amb ie nt te mp. and wat er ente ri ng te mp .

1.D ischa rge cer tain re frige ra nt.

2.C heck an d adjus t EE valv e, make sur e EE v alv e se nsor is w ell con necte d with re tu rn ga s pi pe.

3.C heck if E E valve b roken a nd rep la cem en t neede d.

Temp. sen so r sho rt c irc uit or op en c irc uit.

Che ck if tem p. sens or in goo d con ditio ns, or re pla ce rela te d sen sor.

1.C heck, repai r or repla ce f ilt er.

2.C heck if E E valve b roken a nd rep la cem en t neede d.

3.R efill c ertai n refri ge rant.

No ac tion re qu ire d.

Rep lace te mp. sen sor or fil l in cert ain ref riger an t.

Phase pr ot ection

Reserv ed

Low work in g pressure protection

High wor ki ng pressure protection

Winte r an ti-freeze protec ti on

Reserv ed

Ambien t te mp. sensor f ai lure

Return g as t emp. sensor f ai lure

System c oi l temp. sensor f ai lure

Outlet w at er temp. sensor f ai lure

Inlet wa te r temp. sensor f ai lure

Running sta tu s

OFF

ON

OFF

Prote ct ion/ Fai lu re

PCB LED indic at or

Possible ca us e

Check & solut io n

Wro ng ph as e or la ck o f pha se

Che ck wire c on nec ti ons if ph as es are c on nec te d in righ t or der.

☆☆☆ ☆☆☆☆☆☆● (10 flashes & 1 pause)

☆

Reserv ed

EE5

Temp. sen so r bro ken o r not eno ugh ref ri ger an t.

☆☆☆ ☆ ☆☆☆☆☆● (11 flashes & 1 pause)

☆ ☆

IT S- 17V D IT S-2 4. 5VD 3

Applic ab le models:

15

ITS-4.7HDP

ITS-17VD

7.WIRING DIAGRAM

POW ER SUPP LY

BLU

RED

Y/G

BLU RED

BLUBLUWHI BLK BLU Y/ G

RED

ORG

BLK

BLU

RED

Y/G

Wire con troll er

FQ

Ele ctric h eater o f

L

N

A1

A2

KM

ext ernal t ank

N2

L

hea ter

Ele ctric

4-Way

val ve

Mid dle Fan

Fan

Hig h

OUT 2OUT 1

Exhaust temp

Return gas temp Ambient temp Coil temp

Tank s en so r co nn ec tor

Tra nsf or mer

N5

D01

N4

N6

MP

P

11

1008

07

P

05

42

30

32

03

N

PUM P

N1

FNCM

NL

12V /AC

220 V/AC

LP H P

P

N1

B01

4-Way Valve

Hig h press ure

swi tch

Low p ressu re

swi tch

BL URE D

wi re co ntr oll er

RY 7

BL UBL U

PU MPCO MP

RY 6

4- Way

val ve

El ectr oni c exp an di ng val ve

Transfor m er

P P

0708

101 1

Lo w pr es su re

sw itc h

Hi gh p re ss ure

03

32

30

42

05

Ta nk sen sor co nn ector

Coi l t em p

Am bi en t tem p

Back ga s t em p

Exh aus t tem p

P

6

N1

N2

FNCM

NL

12 V /A C22 0 V/ A C

AC -N

El ec tr o ni c

RE D

WH I BL K

S

R

C

BL U

OR G

BL K BL U RE D Y /G

Y/ G

L

N6

N5

D0 1

MP

K

PU M P

RE DBL UY /G

va lv e

4- Wa y

El ec tr i c he at er

Hi ng Fa n

Mi dd le

Fa n

2

C2

K

2

15

Rf

5

FQ

Ele ctric h eater o f

L

N

A1

A2

KM

ext ernal t ank

16

ITS-24.5VD3

MP

4- Wa y va lv e

CM

UVW

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 I

BL KRE D

BU L

C NBA

AC 38 0V /5 0H z

FM

El ec tr on ic

ex pa nd in g

va lv e

6

D0 1B0 1

N1

N5

L

CO MP

PU MP

El ec tr ic

he at er

4- Wa y va lv e

Hi ng

Fa n

Mi dd le

Fa n

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

Tr an sf or me r

22 0 V/ AC

12 V/ AC

121110090807060504030201 13

HPLP

Hi g h p re s su r e s wi t c h

Lo w p r es s ur e s w it c h

07

08

10

11

Co il te mp

Am bi en t te mp

Re tu rn ga s te mp

Ex ha us t te mp

Ta nk se ns or co nn ec to r

2322212018 191714 161 5

03

32

30

42

05

PO WE R SU PP LY

Wi re

co nt ro ll er

N4 D0 1

Wa te r pu mp

05 05

FQ

Electri c heater of

L

N

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 u nit, the customer should pay attention to this point: all the safe ty

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

-bidden to adjust them without p ermission.

3 Check frequently whether th e 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 operatio n.

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 g ood 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