Electrical connection diagram, standard HWD unit with general electric heater, humidifier and valves on the main coil
6
KA1
YV1
7
0
IS1
C
ST
Electrical connection diagram, standard HWD unit with electric heater as standard, humidifier and valves on the main coil
HWD ELECTRICAL BOARD
6
5
KA1
YV1
KA2
7
0
4
6
IS1
C
ST
IS2
PTH2
PTH2
Room thermostat
QF2
Internal unit protection switch
R1
Heater coil
IS1
On/off switch
QF5
Humidifier protection switch
RD
Alarm indicator light
IS2
Summer/winter selector
HWD
HWD ELECTRICAL BOARD
5
7
8
9
10
4
6
5
8
9
3
2
1
IS3
IS2
I S4
PTH2
PE
7
8
9
10
U N
5
8
9
3
2
1
IS3
QF2
IS4
QF4
Heater coil protection switch
FU1
Fuse
IS3
Automatic/manual selector
YV1
Main coil valve
KIT REC Electronic condensing control
IS4
Fan speed selector
KA1
Relay for humidifier/purifier control
HUMIDIFIER
ELECTRICAL BOARD
U N
U N
1 2
3 4
RD
KA1
2
1
3
QF2
QF5
B1
QF1
U N
HUMIDIFIER
ELECTRICAL BOARD
U N
1 2
3 4
RD
KA1
2
1
3
B1
QF5
HEATER
PURIFIER
1 2
KA2
~
KA1
R1
MAX LOAD FOR
EXIT N° 5=3A-230V
HEATER
ELECTRICAL BOARD
U V W N
ON- OFF
0 - 10 Vdc
KA2
QF4
QF1
PE U V W N
ST
Temperature sensor
QF1
Assembly protection switch
PR
Electric heater reset button
KA2
Heater coil auxiliary relay
B1
Humidistat
QF6
Purifier protection switch
English 07/13
QF6
PURIFIER
1 2
KA1
QF6
11