SystemAir SAVE VTC 700 Betriebs- Und Wartungsanleitung Seite 46

46 | Accessories
• PH — electrical pre-heater
• ECT — extra controller temperature sensor
• OAT — outdoor air duct temperature sensor
• H — contactor
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Component/product — Article number:
• CB 250-3,0 230V/1 Duct heater — 5385
• CB 250-6,0 400V/2 Duct heater — 5372
• CB 250-9,0 400V/3 Duct heater — 5373
• CB Preheater Kit 2/3 phase — 151612
• CB Preheater Connection Kit — 142852
Installation and connection
1. Install electrical pre-heater at least 100 mm distance
from the unit in the outdoor air duct. A contactor (H) is
used to control the pre-heater (PH). Connect the con-
tactor to any free digital output and 24 V on the con-
nection board.
2. Connect pre-heater and the power supply to the
contactor.
3. Install a duct temperature sensor (OAT) before the
electrical pre-heater on the outdoor side of the unit
and connect it to any free Analog Input on the connec-
tion board (CB).
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Go to Components menu, select Extra Controller menu and select mode as Preheater. Pre-heater setpoint
can be set in the same menu. Do other advanced settings if necessary.
4. Configure connection of the pre-heater. Go to Service menu. Select Output menu. In next menu select DIGITAL
tab. Select the digital output to which the pre-heater is connected. Example if it is connected to DO3 on the
Fig. 4 Pre-heater connections
GB
211467 | A004