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Topvex TR03, TR04, TR06 Installation description
205354 Systemair AB
14
Changing fan speed
All 3 possible fan speed settings LOW, MEDIUM and HIGH can be set between 0-100% of the
maximum fan speed. The settings are made in the control panel, see Operating and maintenance
description/Control unit, manual.
External connections
See page 1 and the attached wiring diagram, how to connect the electrical cables.
Timer (Extended/Forced running)
When the unit is in shut down mode or running on low or medium speed it can be forced up to the
speed of your choice as long as the timer switch is activated. To achieve this the Extended/Forced
operation in the control panel has to be set to 0 minutes.
Push button (Extended/Forced running)
When the unit is in shut down mode or running on low or medium speed it can be forced up to the
speed of your choice by using a Push button (impulse). Set the Extended/Forced operation in the
control panel to the required time, in minutes.
Damper, outdoor/exhaust air
The outdoor/exhaust air damper (Supply voltage 24V AC, Spring return) is used to avoid cold air to
come into the building when the unit is stopped e.g. during night.
The damper is also preventing the hot water battery (HW models) from freezing by closing when the
returning water in the battery is below a set temperature, +8C, alternatively if the supply air
temperature decrease below a set temperature (adjustable).
Cooling battery (water)
A water valve actuator (Supply voltage 24V AC, Control signal 0-10 V) can be connected to the unit
and be operated in sequence to the heater battery.
When using this function set the temperature Regulation mode to: Exhaust temperature.
NB: When installing a cooling battery (water) a supply air sensor model TG-KH/PT1000 (accessory) is
to be installed in the duct after the cooling battery and connected to terminals 30 & 31 on the control
unit Corrigo E17S. The built in supply air sensor is to be disconnected and the cable ends insulated.
HW valve/actuator
A water valve actuator (Supply voltage 24V AC, Control signal 0-10 V) is to be connected to the unit
to control a 2 or 3-way water valve.
Fire alarm
Connects to an external fire central. Stops the unit or changes the fan speed to High if the alarm is
activated.
Alarm output
Gives a signal (24V DC) whenever there is an A or B-alarm.
Components
Heat exchanger
TOPVEX has a high efficient rotating heat exchanger. Required supply air temperature is therefore
normally maintained without adding additional heat via the built in re-heater battery (water or electric).
The operation of the heat exchanger is automatic and dependent on the set temperature.
Heater battery
TOPVEX has a built in heater battery (water or electric). The operation of the heating battery is
automatic and dependent on the set temperature.
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