SAVE VTR 700 SERVICE AND ACCESSORIES INSTALLATIONV1 20210507 104848956
Table Of Contents
- 1 Overview
- 2 Important Safety Information
- 3 Configuration
- 4 Service
- 5 Accessories
Accessories
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Note:
For more detailed information see a wiring diagram delivered with the unit.
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Go to Components menu, select Heater menu and select type as Electrical. Do advanced settings if necessary.
4. Configure overheat protection sensor. Go back to Input menu. Select ANALOG tab. Select the analog input to which
the overheat protection sensor is connected. Example if it is connected to AI4 on the main circuit board, then select
ANALOG INPUT 4 and select Overheat Temperature Sensor (OHT) from the input type list.
5. Configure TRIAC. Go to Output menu. Select ANALOG tab then select TRIAC OUTPUT and set output type as Y1
Heating.
5.3.2 Electric duct heater (control via relay)
The electric heater can be installed in outdoor or supply air ducts.
M5
M5
RL
DO
24V
230 V~
AI
ECT
ELH
AI
DO
24V
SAT
230 V~
RL
ELH
SAT
T
ECT
ELH
2
AI
4
3
1
• ELH — electric heater
• ECT — extra controller temperature sensor
• OAT — outdoor air duct temperature sensor
• SAT — supply air temperature sensor
• RL — relay
• 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 Preheater Connection Kit — 142852
5.3.2.1 Heater installed in the outdoor air duct
Installation and connection
1. Install an electric heater (ELH) at least 100 mm distance
from the unit in the outdoor air duct. A relay (RL) is
used to control the heater. Connect relay to any free
digital output on the connection board (CB).
2. Connect the power supply to the electric heater via a
relay. A circuit breaker (BRK) is not included in the
package and must be ordered separately. It must be in-
stalled in the circuit.
3. Install a duct temperature sensor (OAT) before the
electric heater and connect it to any free analog input
on the connection board (CB).
Outdoor air heater configuration
1. Go to Service menu
2. Enter password (default 1111)
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