System air SAVE VTR 700 User manual

Document in original language | 211599 · A001
Installing Water heating battery
SAVE VTR 700
Installation instructions GB

211599 | A001
© Copyright Systemair UAB
All rights reserved
E&OE
Systemair UAB reserves the rights to change their products without notice.
This also applies to products already ordered, as long as it does not affect the previously agreed specifications.
Systemair is not liable or bound by the warranty if these instructions are not adhered to during installation or service.

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Contents
1 Information....................................................1
2 Installation.....................................................1
2.1 Open the front hatch...............................1
2.2 Remove cover lids ..................................1
2.3 Mount the water heating battery ...............2
3 Connections ...................................................3
3.1 Water system........................................3
3.2 Actuator for valve control.........................4
4 Configuration .................................................4

Information | 1
1 Information
A water heating battery, frost protection sensor (already mounted) and instruction are included in this kit.
After unpacking, check the contents. If any part is missing or damaged, please contact your place of purchase.
Note:
Size and design of the water heating battery are different for each SAVE model.
2 Installation
2.1 Open the front hatch
Danger
• Make sure that the Mains supply to the unit is disconnected before performing any maintenance or
electrical work!
Remove the front hatch by the use of an 8 mm Allen key, after which the hatch is tilted back and lifted off completely.
2.2 Remove cover lids
1. Access the electrical connections compartment and compartment for water heater by removing the cover lids.
Fig. 1 Remove the lid
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2| Installation
2.3 Mount the water heating battery
Fig. 2 The water heating battery
1. Outlet
2. Inlet
3. Remove plug and add the frost protection sensor. Tread seal the sensor.
4. Drain screw
5. Bleed screw
Installation
1. Pull out inner and outer rubber grommets.
Fig. 3 Remove grommets
2. Remove 3 knobs that will be used to secure water heater in place.
3. Mount the water heater. Be careful not to damage the thin fins on the heater.
The water heating battery should be mounted on the brackets at the back of the compartment.
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Connections |3
Fig. 4 Install the water heating battery
4. Secure the water heater with three previously removed knobs (pos. 1). Lead the frost protection sensor wires
through holes in the compartment walls (pos. 2) to the electrical connections compartment.
5. Connect the frost protection sensor to any free analog input on the main circuit board. Black wire should be con-
nected to ground (GND), red wire to any analog input (for example AI4).
3 Connections
3.1 Water system
When connecting a heater to the water system, the following things should be considered:
1. The connecting pipes from the water heating battery must under no circumstances be subjected to twisting or bend-
ing stresses when assembling the pipe, etc. Use suitable tools to counteract the connectors twisting/bending mo-
ments during assembly.
2. Ensure that forces due to expansion in the system and the intrinsic weight of the piping system itself do not put loads
on to the connecting pipes from the heater.
3. Hot water inlet and outlet should be connected as illustrated in figure 2. The heater contains a bleed screw (5), the
air must be properly vented from the system to ensure proper function. A venting valve should normally be installed
near the heat exchanger or at the highest point in the system.
4. A drainage screw is connected on the heater figure 2 to empty the system in the event of repair work, a longer op-
erational stop, or when there is a risk of freezing, etc.
5. Immediately after the system has been filled with water, the heater and its connections must be checked for water
leaks. Leaks can cause water damage.
Operational data:
Max. operating temperature: 125°C
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4| Configuration
Max. operating pressure: 0,8 MPa (8 Bar)
Important
If the water in the water heating battery, then it can burst. If this happens water may leak from the system
and cause water damage.
If there is a risk of frost the heater must be installed with a circulation pump in a secondary circuit to ensure
that a constant flow is achieved in the heater. It's strongly recommended to install an outdoor air damper
with a spring return actuator.
3.2 Actuator for valve control
A valve can be installed to control water flow based on heating demand. An actuator have to be installed to control the
valve.
Table 1 Recommended accessories
Name Article no.
Valve ZTV/ZTR, ZTVB/ZTRB range
Actuator RVAZ4 24A Actuator 0-10V 9862
Transformer PSS48 Transformer 24V 204385
1. Connect actuator to any free ground (GND) connection and analog output (for example AO3) on the connection
board.
2. Connect power supply to the actuator. It requires 24 V. Use a transformer.
Important
Do NOT use 24V DC power output from the connection board for valve actuator.
4 Configuration
Control of the water heating battery must be configured at the control panel.
Configuration
1. Go to Service menu
2. Enter password (default 1111)
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Configuration | 5
3. Activate the actuator. Go to Components menu, select Heater menu and select type as Water. Choose actuator
voltage type. Do advanced settings if necessary.
4. Configure connection of the actuator. Go to Service menu. Select Output menu. In next menu select ANALOG tab.
Select the analog output to which the actuator is connected. Example if it is connected to AO3 on the connection
board, then select ANALOG OUTPUT 3 and select Y1 Heating from the output type list.
5. Configure frost protection sensor (FPT). Go back to Input menu. Select ANALOG tab. Select the analog input to which
the frost protection sensor is connected. Example if it is connected to AI4 on the main circuit board, then select ANA-
LOG INPUT 4 and select Frost Protection Temperature Sensor (FPT) from the input type list.
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Installing Water heating battery · Installation instructions · 211599 · en_GB · 2017-08-22 · A001
Systemair UAB
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