42 WHC/WHE
GB - 10
Electric heaters
Electric heater
There are two, armoured heaters connected together in series.
The powers obtained are described in the table.
Operation with electric heaters at the same time as with hot
water is only possible if the temperature of the water entering
the coil is lower than 45
°
C; to enable the hot water
function you must:
a) configure the relevant SW1 switch on the printed circuit;
b) install the coil maximum temperature protection thermostat
(accessory).
If the unit is configured for simultaneous heater and hot water
operation and the coil maximum temperature protection thermostat
is not installed, the unit cannot operate in heating mode.
햲
hot water switch
햳
Only electric heaters
FAN MOTOR
M4
CN1
GND
PUMP
M3 M2
M1 VALVE
L
N
TH
HTR
V1
V2
RL1
L
N
1
2
3
4
5
6
7
8
M5
CN2
H 0 + HTR
2
ONLY HTR
SW1
HEA
TER
F1
햳
햲
Table VI: Technical data of electric heaters
Model 42WHE
016
020
028
Electric heater capacity
W
2 x 500
2 x 500
2 x 500
Supply voltage
V
230 ~ 50Hz
230 ~ 50Hz
230 ~ 50Hz
Max current drawn
A
5
5
5
Automatically reset
safety thermostat
open 60
°
C
±
3
°
C; closed 45
°
C
±
3
°
C
Manually reset
safety thermostat
open 75
°
C
±
5
°
C