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HWD
11
English 07/13
6
5
7
8
9
10
U N
1
2
3
9
8
5
6
4
0
7
ST
IS1
IS2
IS4
IS3
MAX
MED
MIN
C
PTH2
YV1
ON- OFF
U V W N
0 - 10 Vdc
KA2
KA2
KA1
1 2
3 4
U N
RD
KA1
QF5
PE
U V W N
QF1
QF4
QF2
3
1
2
B1
HWD ELECTRIC AL BOARD
HUMIDIFIER
ELECTRIC AL BOARD
HEATER
ELECTRIC AL BOARD
KA1
1 2
PURIFIER
QF6
6
5
7
8
9
10
U N
~
KA2
R1
1
2
3
9
8
5
6
4
0
7
ST
IS1
IS2
I S4
IS3
MAX
MED
MIN
C
PTH2
YV1
1 2
3 4
U N
RD
KA1
QF5
QF2
PE
U N
QF1
K A1
3
1
2
B1
HWD ELECTRIC AL BOARD
HUMIDIFIER
ELECTRIC AL BOARD
HEATER
MAX LOAD FOR
EXIT N
°
5=3A-230V
KA1
1 2
PURIFIER
QF6
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
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
ST
Temperature sensor
QF1
Assembly protection switch
PR
Electric heater reset button
KA2
Heater coil auxiliary relay
B1
Humidistat
QF6
Purifier protection switch
Electrical connection diagram, standard HWD unit with general electric heater, humidifier and valves on the main coil
Electrical connection diagram, standard HWD unit with electric heater as standard, humidifier and valves on the main coil