VALLOX 130 E
R
0
10
20
30
40
°
C
0
10
20
3
0
40
°
C
© VALLOX • We reserve the right to make changes without prior notification.
VALLOX 1000 supply air heater
Instructions for regulating the defrost thermostats for VALLOX 130 E and VALLOX
1000 preheater
• The recommended adjustment for the supply air heater thermostat is circa
+5
°
C...10
°
C, however slightly higher than the adjustment for the defrost
thermostat of VALLOX 130 E. This enables the functioning of the preheating
resistor before the stopping of the fan and ensures that preheating is truly
beneficial.
• You can check how defrost functions by comparing the functioning of the supply
air fan and preheating. If the fan stops before the supply air heater switches on
to heat, you have to adjust the defrost thermostat somewhat lower, from +5
°
C
to +3
°
C for example, or increase the setting for the thermostat of the supply air
heater. The indicator of the supply air heater thermostat shows you when the
heater switches on to heat.
• The preheating resistor heats even though the supply air fan has stopped.
Consequently, underpressure causes air coming from the outside to become
warmer before the cell, shortening the time during which the fan is stopped.
The outdoor air duct of VALLOX 130 E can be equipped with an optional VALLOX
1000 supply air heater. The sensor of a separate thermostat on the heater is
mounted in the exhaust air duct as close to the unit as possible. The supply air
heater switches on and the thermostat indicator lights up when exhaust air
temperature goes below the setpoint of the thermostat. If exhaust air temperature
goes even lower, the defrost thermostat of VALLOX 130 E stops the supply air
fan. The preheating resistor switches off when exhaust air temperature is circa
3
°
C higher than the value set for the thermostat.
SUMMER SETTING
HEAT RECOVERY BYPASS
WINTER
SETTING
7
HEAT RECOVERY BYPASS
PREHEATING OF OUTDOOR AIR (option)
DEFROSTING OF THE HEAT RECOVERY CELL
B
A
J
In winter use
the heat recovery cell of VALLOX
130 E recovers heat from the air leaving the
dwelling and uses it to heat the air coming
from the outside.
Water condensing from extract air may freeze in the heat recovery cell. Freezing
can be prevented by stopping the supply air fan (standard function) or by switching
the (optional) pre-heating resistor on. Both these functions are automatic.
The defrost thermostat (J) stops the supply air fan whenever the temperature of extract
air goes down to circa +5
°
C. The fan restarts when temperature has risen by three
degrees, i.e. to +8
°
C. The threshold value of the thermostat can be adjusted.
In summer use
when it is warm outside, it is unnecessary to heat outdoor air. The heat recovery
cell is then bypassed in VALLOX 130 E with the standard damper (A). The position of the
damper can be changed using the handle (B). In the summer position air flow through the
cell is prevented, and heat recovery bypass is activated.
VALLOX thermostat 0–40
