Kronoterm WP4 LF-502 User manual

Service manual
Heat pump for sanitary water
WP4 LF-502
ID.: 17-16-22-2991-03 / 6.2017
SLO

ID.: 17-16-22-2991-03
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Service manual – Version 02 / State 6.2017
Printed in Slovenia, Copyright by Kronoterm d.o.o.
This document is copyrighted. Any use outside the provisions of the copyright law without the
permission of Kronoterm d.o.o. is illegal and punishable by law. All previous versions of this
document are void. We reserve the right to make changes. We reserve the right to change this
document and for printing errors.

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1. Kazalo
1. Kazalo .................................................................................................................... 2
2. Structure of serial number.................................................................................... 3
3. Sestavni deli .......................................................................................................... 3
4. Position of Connections and Dimensions........................................................... 5
5. Removing the front cover ..................................................................................... 6
6. Removing the housing of the device ................................................................... 7
7. Table of parameters .............................................................................................. 8
8. Electrical Connection Scheme ............................................................................. 9
9. Technical data ......................................................................................................10

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2. Structure of serial number
Example:
W
XX
YY
ZZZZ
1 2 3 4
1
2
3
4
KRONOTERM Year Calendar week
Serial number in
current year
(0001, 0002, 0003,
etc.)
3. Sestavni deli

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Bill of elements WP4 LF-502
Seq. No.
Title Ident
1 ISOLATED HOOD 2222000069728
2 FAN CONDENSER 2222000020804
3 HOOD COVER 2222000068332
4 FAN HOLDER 2222000045128
5 DIFFUSER 2222000049904
6 EVAPORATOR 2222000045654
7 ANODE 5/4'' 2222000079765
8 ELECTROMAGNETIC VALVE WITH A COIL 2222000033583
9 COMPRESSOR INSULATION 2222000069742
10 COMPRESSOR 2222000065898
11 SUPPORTING PANEL, ASSEMBLY 2222000069735
12 SUCTION HOSE 2222000059316
13 PRESSURE SWITCH 2222000033460
14 PRESSURE HOSE 2222000010300
15 FAN 2222000016081
16 THERMAL EXPANSION VALVE 2222000011512
17 COMPRESSOR CONDENSER 2222000079857
18 DEHYDRATOR 2222000040789
19 ELECTRONIC CARRIER 2222000078393
20 CONTACTOR 2222000017514
21 SAFETY THERMOSTAT 2222000075866
22 CONTROL RELAY PANEL 2222000077372
23 MAGNESIUM ANODE 2222000079758
24 PRESSURE SWITCH RELAY 2222000071233
25 SCREEN ADJUSTMENT 2222000077396
26 ELECTRONICS COVER 2222000078379
27 CLAMP CARRIER 2222000079574
28 ELECTRICAL HEATER 2222000079734
29 BOILER 2222000054793
30 FLANGE COVER 2222000079741
WATER SENSOR 2222000079123
EVAPORATOR SENSOR 2222000079123
AIR SENSOR 2222000079123
CABLE WITH OPTICAL SEPARATOR 2222000078928
COMPRESSOR CABLE 2222000079505
SCREEN CABLE 2222000077662
WEB MODULE CABLE 2222000077662

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4. Position of Connections and Dimensions
A
Connection cold water G1''
B
Connection heat carrier - return G1''
C
Connection heat carrier - lifting conduit G1''
D
Circulation connection G3/4''
E
Hot water connection G1''
F
Connection for removal of water condensation 16
G
Connection for additional electric heater 6/4''

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5. Removing the front cover
Electrical connection of the power cable, additional source, external signal, additional sensor,
and additional heater on the front side under the cover. To access the electrical connection,
remove the front cover, as shown in the image below:
Figure 1: Removing the front cover
Imbus 4

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6. Removing the housing of the device
To access the generator device, it is necessary to remove the housing of the device. Thus, it
is necessary to:
1. Unscrew screws on the front and rear cover
2. Remove the front and rear cover (1)
3. Remove the left and right half of the housing (2)
Figure 2: Removing the housing of the device
1
1
2
2
Imbus 4
Imbus 4

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7. Table of parameters
Look to Service manual for Controller of heat pump for sanitary water – OPTITRONIC 2,
ID:17-16-14-3991-xx.
Table of parameters

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8. Electrical Connection Scheme
1 Compressor - generator 12
Relay panel
2 Fan 13
Screen
3 Electric heater 14
Electromagnetic valves
4 Safety thermostat 15
Fan connection pins
5 Fan condenser 16
Optical converter
6 Pressure switch 17
High pressure switch relay
7 Temperature feeler NTC - water 18
Additional heater connection pin
8 Temperature feeler NTC - air 19
Power supply connection pins
9 Temperature feeler NTC - evaporator 20
Contactor
10
Connection pins of additional source 21
Web module
11
Compressor condenser

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Figure 3: Electrical connection schematic
9. Technical data
Look to Instructions For Use And Installation Heat Pumps for Sanitary Water Heating
WP4 LF-502. ID: 10-16-20-2979-xx
R
C
S
1
PE
U1 - L
U2 - N
Z -
2μF;400Vac
PE
U1
U2
Z
N
L
V1 V2
Q1 Q2
32 22 12
31 21 11
NTC
NTC
8
6
1.3
1.4
1.5
1.2.3
3.1
4
5
3.2
DIGITAL INPUT
Pressure
switch 1
Pressure
switch 2
DI4
WATER
EXT.
SPURCE
INPUT
AIR
EVAPOR.
DISPLAY
WEB
ANALOG INPUT COMM.PORTS
PUMP
CONTACT
EXT.
INPUT
INPUT
230V
COMPR.
L N N L
EL.
HEATER
MAG.
VALVE
FAN
FAN 1
N
FAN 2
12
Q1 Q2
NTC
5
4
3 2
1
7 6
N L L N
8.1.2
14 13 12 11 10
9 8
6.1 6.2 6.3
7.1 7.2
10.1
10.2.1
10.3
9.2
9.1
10.4
8.2.1
8.2.2
24.2
22 23
24.1
12.3
8.2.2
8.2.1
9.3
9.4
14.2
2
3
4
5
7
9
10
11
13
14
15
18 19
20
21
1.1.1
1.2.1
1.3
1.4
1.1.1
1.2.1
1.5
1.1.2
1.2.2
10.2.2
12.3
12.2
12.1
17
18
3
16
2 1
3 2 13 2 12 12 12 12 1
2 1
17
18
N
SEN. EXT. L
ADD. N L / /
2
2
~230V
N L1 L2 L33N~400V
19
20
21
10.2.3
14.1
A2 A1
C
L
O
I
12
14
O
N
O M
C
N C
11
25
8.1.1
12.2
15.1
8.2
8.1
1
67
12
15
10
9
17
16

Company headquarters and production
Kronoterm d.o.o.
Trnava 5e
3303 Gomilsko
Tel.: [phone] | Fax: [phone] | Web-page: www.kronoterm.com |
E-mail: [e-mail] | Customer support and service.: (00386) 3 703 16 26 |
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