3.4 Water heating battery
In units with built in water heating battery, the hot water coil is located next to the supply air connection.
The coil material is copper piping with a frame of galvanized sheet steel and aluminium fins.
The coil is equipped with venting and immersion sensor for frost protection.
3.5 Electrical heater
Warning
• Although the Mains supply to the unit has been disconnected there is still risk for injury due to rotating
parts that have not come to a complete standstill.
• Beware of sharp edges during maintenance. Use protective clothing.
In units with built in electrical heater the heating rods are located after the supply air fan in the airflow
direction. The material is stainless steel. The electric heating coil has both automatic and manual
overheating protection.
The manual overheat protection is reset by pressing the red button, marked RESET, inside the connection
box (pos. E). The power demand of the electrical heating coil is controlled by the main regulator.
The main regulator controls the heat steplessly by a TTC triac control according to the desired
supply/extract or room air temperature that is set in the control panel.
3.6 Electrical connection box
Warning
• Make sure that the Mains supply to the unit is disconnected before performing any maintenance or
electrical work!
• All electrical connections must be carried out by an authorized installer and in accordance with
local rules and regulations.
TA are equipped with a built in regulator and internal wiring.
Operation and Maintenance Instructions
132616
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Systemair Sverige AB
