Pre-heater Topvex counterflow units Installation instructions Document in original language | 134351 · A003 GB
134351 | A003
Contents 1 2 3 Warnings.......................................................1 General .........................................................1 Installation.....................................................1 3.1 Outdoor air sensor ..................................1 3.2 Wiring diagram ......................................2 3.3 Corrigo.................................................
Warnings | 1 Warnings Danger • 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. 2 General A a pre-heater is available as an accessory for Systemair Topvex units with counterflow heat exchanger. A pre-heater can be installed in the outdoor duct to prevent icing in the heat exchanger.
2 | Installation 3.2 Wiring diagram Corrigo B60 BU A61 OR N62 GN PE E63 90 8 9 91 10 4 11 71 12 30 13 14 CEM15 UC BN 31 L3 L2 CB 250-90-3-MQXL L1 CB 315-90-3-MQXL CB 400-120-3-MQXL N PE L3 L2 L1 N 400V 3N~ BU G G0 OS * Fig.
Installation | 3.3 Corrigo Function via expansion unit. Log on with admin rights in Corrigo. Main menu item Sub-menu item 1 Sub-menu item 2 Explanations → Access rights → Log on Log on Enter password xxxx Actual level: None Log on to service level by entering a 4-digit code. After reaching the desired level go back with “LEFT” arrow (press 2 times) on the control panel. Standard code from factory to enter service level is 2222. Back to operator level: 1111. To enter Admin level code: 3333.
4 | Installation Example 1: Run if defrosting. If pre-heater is used in order to maintain supply temperature at desired level. For example, desired supply temperature is +20°, the outside air is -4° and the heater has an capacity of 10°. This is enough during normal operation on these units but during bypass defrosting the heater needs an capacity of 24°. This is a lack of 14°. In this example a set point for the pre-heater needs to be +10°. Set point must be chosen according to heat capacity and airflow.
134351 | A003
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