SAVE VTC 700 Service & Accessories Installation Manual GB Document in original language | · v01
© Copyright Systemair UAB All rights reserved E&OE Systemair UAB reserves the rights to alter 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 warranty if these instructions are not adhered to during installation or service.
Contents 1 2 3 4 5 Overview ......................................................1 1.1 Warranty ..............................................1 1.2 Type label.............................................1 1.3 Disposal and recycling .............................1 Important Safety Information .............................1 2.1 Intended Use.........................................2 2.2 Admonitions .........................................2 Configuration .................................................
Overview | 1 Overview The key to proper and safe operating of the unit is to read this manual thoroughly, use the unit according to given guidelines and follow all safety requirements. 1.1 Warranty For the assertion of warranty claims, the products must be correctly connected and operated, and used in accordance with the data sheets. Further prerequisites are a completed maintenance plan with no gaps and a commissioning report. Systemair will require these in the case of a warranty claim. 1.
2 | Configuration • Do not allow children to play with the device. 2.1 Intended Use • Abide by the system-related conditions and requirements of the system manufacturer or plant constructor. • Keep all the warning signs on the device and in a legible condition. • The device is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.
Configuration | On and Off slider to activate or deactivate a function. White bubble — function is inactive, green bubble — function is active. Back button to return to a previous menu, located at the upper left corner Up arrow to increase a value CANCEL Button to cancel changes Down arrow to decrease a value SET/OK Buttons to confirm changes Some menus have more than one page. Touch page indicator in the top right corner to go to the next page.
4 | Configuration Icon Text Description AUTO Automatic airflow control. AUTO mode is available for selection when Demand Control, Week Schedule and/or external fan control functions are configured, otherwise AUTO mode icon won’t be visible in active user modes menu. AUTO mode activates Demand Control, Week Schedule and/or external fan control functions. Demand is available to choose as airflow setting in Week Schedule. Manual selection of airflow levels.
Configuration | Icon Text Description Configurable Digital Input 1 Configurable digital input for custom user function. Airflow levels for both fans are freely configurable. High–priority function. Configurable Digital Input 2 Configurable digital input for custom user function. Airflow levels for both fans are freely configurable. Mid–priority function. Configurable Digital Input 3 Configurable digital input for custom user function. Airflow levels for both fans are freely configurable.
6 | Configuration 3.3.2 Temperature settings Temperature can be set at SET TEMPERATURE menu accessible from the home screen by touching TEMPERATURE icon with thermometer. Default temperature value is 18°C (range 12–30°C). Use up and down arrows or a slider to change the value. Then touch the OK button to confirm changes. Temperature set point is for room air temperature, supply air temperature or for extract air temperature depending on which control mode is active.
Configuration | Use up and down arrows or a slider to change the airflow value. The airflow may be adjusted in these steps: Off/Low/Normal/High. These settings control output signals to the supply and extract fans. Important It is not recommended to set fan to Off in standard households. If manual fan stop is activated, the unit should be provided with dampers in exhaust and fresh air ducts to avoid cold draught and risk of condensation when the unit has been stopped.
8 | Configuration Icon 3.5 3.5.1 Text Description Cooling recovery Automatic cooling recovery is active when extract air temperature from apartment is lower than outdoor air temperature and there is a cooling demand (temperature setpoint is lower than outdoor air temperature). No cooling recovery with heating demand. If the outdoor air temperature is higher than then thee indoor air temperature and there is a heating demand, function Free heating is activated instead.
Configuration | 3.5.1.2 Sensors Values from sensors and load of fans (rpm). 3.5.1.3 Input Status Status of configured analog, digital and universal inputs. Connected component type and raw value (volts) is displayed. 3.5.1.4 Output Status Status of configured analog, digital and universal outputs. Connected component type and value (volts) is displayed. 3.5.1.5 Unit Version Unit model name, manufacturer number, serial number and unit software versions for Mainboard, HMI and IAM. 3.5.
10 | Configuration Alarm name Explanation Do the following Defrosting error Indicates failure of pre-heater to preheat the incoming outdoor air (in case Extra controller is configured as Preheater). Check the pre-heater reset button. Check the pre-heater cabling. Contact your installation company or place of purchase. Defrosting error may be caused by extremely low outdoor air temperatures or pre-heater failure. • Alarm stops the unit.
Configuration | Alarm name Explanation Do the following Rotor motor feedback Indicates a rotor malfunction. No feedback signal from the rotor motor for 180 seconds. If the rotating heat exchanger has stopped, check the rotor belt. Replace the belt if it is broken. If the heat exchanger is still not rotating check if the quick connector of the rotary heat exchanger motor is connected. If the alarm persists, the motor may be faulty. Contact your installation company or place of purchase.
12 | Configuration Alarm name Explanation Do the following Built-in extract air temperature sensor Indicates internal extract air temperature sensor malfunction. Active: measured temperature = 0°C Returned: measured temperature > 5°C Check that sensor is connected properly and cable is not damaged. Contact your installation company or place of purchase. Extra controller alarm Error from external device. Check if external device is connected properly and cable is not damaged.
Configuration | 3.5.3 Week Schedule The unit can be configured to operate at set airflow levels up to two time periods (00:00–23:59) on user selected days. Week Schedule is active only during AUTO mode. It is possible to activate or deactivate digital output for schedule and unscheduled periods. 3.5.3.1 Schedule Airflow Settings Touch settings icon to go to SCHEDULE AIRFLOW SETTINGS menu. In this menu set airflow level for scheduled and unscheduled periods.
14 | Configuration Set the time. Touch the START TIME or END TIME values to change time. Use arrow buttons decrease value. Confirm with OK button. and to increase or Note: Scheduled time can start but never end at midnight (00:00). The latest END TIME period is 23:59. Scheduled time cannot go to the next day. 12 or 24 hour time format can be changed in System Preferences menu. If necessary, activate second scheduled period and set up time.
Configuration | 3.5.6.1 Input Configuration of inputs Settings for analog, digital and universal input terminals on the main board and connection board, configuration of functionality. Table 1 Digital universal inputs available for selection User Modes Activation of specific user modes. Central Vacuum Cleaner Function Activation of Central vacuum cleaner function. Cooker Hood Function Activation of Cooker Hood function. External Stop Air handling unit is stopped by an external command.
16 | Configuration Table 3 Digital outputs available for selection Step Controller Y1 Heating Step Controller Y3 Cooling Step Controller Y4 Extra Controller Heater/Cooler/Extra controller control signals. Sum Alarm Fault indicating output. Outdoor-/Exhaust Air Damper Outdoor-/Exhaust air damper control signal. Secondary air Secondary air damper control. Activate Cooling Cooling mode activation signal to an external system.
Configuration | Range: 0–10 V / 2–10 V / 10–0 V / 10–2 V. Heater • Choose heater type. Each selection unlocks additional configuration options. Default setting is based on unit type. Available types: None / Electrical / Water / Change-over. • Set actuator type. Default value is 0–10 V. Range: 0–10 V / 2–10 V / 10–0 V / 10–2 V. • Set circulation pump temperature. Default setting is 10°C. This option is available if Water / Change-over heater type is selected. Range: 0–20°C. • Set circulation pump stop delay.
18 | Configuration 3.5.6.4 Control Regulation Configure how the system is controlled. Temperature Control • Configure temperature controller. Choose control mode: Available modes: Supply air temperature control / Room temperature control / Extract air temperature control Note: Room temperature control mode requires an accessory to measure room temperature. • Choose temperature unit. Default setting is Celsius. Available units: Celsius / Fahrenheit • Set P-band. Default setting is 20°C. Set I-time.
Configuration | Setting Manual RPM Pressure (VAV) Flow (CAV) External Pressure Sensors — configure sensor voltage relation to pressure. Set value at which fan alarm occurs. Default setting is None - - Supply air fan control sensor: Pressure at 0V: 0-500 Pa, default setting 0 Pa Pressure at 10V: 0-2500 Pa, default setting 500 Pa. Extract air fan control sensor: Pressure at 0V: 0-500 Pa, default setting 0 Pa.
20 | Configuration Setpoint, default setting is 45% humidity. Range: 1–100% RH. Set P-band, default setting is 4g/kg. Range: 1–100g/kg. Set I-time, default setting is Off. Range: Off/1–120 sec. Defrosting Control Note: Setting is available if heat exchanger type is set as Plate. The unit is equipped with an automatic defrost function that is activated when there is risk of icing in the area around the heat exchanger. • Select defrosting mode. Default setting is Normal.
Configuration | Fig. 4 Example speed for supply and extract air 4. Use this procedure to find fan speed for all airflow levels: MINIMUM LEVEL, LOW LEVEL, NORMAL LEVEL, HIGH LEVEL, MAXIMUM LEVEL. 5. Finally in the control panel go to Service menu, enter the password, then go to Control Regulation → Fan Control. Choose RPM as airflow type and in sub-menu Airflow Level Settings enter calculated fan speed values for each level. 3.5.6.5 User Modes Set airflow level, duration and offset for each user mode.
22 | Configuration Connecting the IAM to wireless network 1. If your wireless router does not support WPS, Wi-Fi connection should be set up manually. Therefore you need to find Wi-Fi name and add password using control panel. 2. In control panel go to Service -> Communication -> WLAN settings menu. 3. Press Scan for networks button. IAM will search for available Wi-Fi networks (should not take longer than one minute). 4.
Service | 3.5.7 Help FAQ, troubleshooting of alarms, contact information for support is provided in this menu. • Service partner — information about service partner. • Company • Telephone • Homepage • Email • User modes— detailed description of all user modes. • Functions— detailed description of different user functions. • Alarms— detailed description of all alarms. • Troubleshooting— information about all different possible malfunctions. 4 Service 4.
24 | Service 4.3 Internal Components Fig. 5 Components Position Description 1 1 Fan, supply air 2 Fan, extract air 3 Filter, outdoor air 4 Filter, extract air 5 Defrost damper 1 6 Motor, defrost damper 7 Heat exchanger 8 Condensation tray 9 Condensation drain 10 Print card with terminals 11 Temperature sensor, supply air 12 Temperature sensor, outdoor air 13 Relative humidity/Temperature sensor, extract air 14 Connection box The damper may not be turned by hand! 4.3.
Service | 4.3.1.3 Defrost damper The built in bypass damper (pos. 5 figure 5) is involved in defrosting, cool recovery, and supply air temperature control of the unit. The damper motor is controlled by an analogue 0–10 V signal. A test sequence which opens and closes the damper will occur if there is heating demand and after every power up of the unit. An actuator drive detects if the bypass is able to close completely.
26 | Service 3 Remove the top cover plate (pos. 1) by removing 2 screws (pos. 2) in the lower front edge of the plate. All external connections to possible accessories are made to terminals on the connection box (chapter 4.4.2). 4.4.1 Main circuit board layout The SAVE VTC 700 is equipped with built-in regulation and internal wiring. Fig.
Service | Position Description 13 Digital input 2 — Freely configurable / Cooker hood (VTR 150/K unit) 14 Analog output 2 — Freely configurable / Electrical heater controller (VTC 700 unit) 15 Analog output 1 — Rotary heat exchanger control signal (for VSR, VTR type models) / Damper control signal (for VTC, VSC type models), UI6 — Bypass damper feedback signal (for VTC, VSC type models) 16 Terminals for speed control of extract air fan 17 Terminals for speed control of supply air fan 4.4.
28 | Accessories Fans do not start 1. Check the control panel for alarms. 2. Check that all fuses and fast couplings are connected (main power supply and fast couplings for supply and extract air fans). 3. Check the week schedule. Fans may be set to OFF in the Schedule airflow settings menu. Reduced airflow 1. Check the control panel for alarms. Some alarms can reduce the airflow to LOW if active. 2. The unit could be in defrost mode.
Accessories | 5.1 Internet Access Module (IAM) Internet access module is a device that allows to connect to the unit and control it via a mobile application or directly from the computer and receive automatic updates. The Cloud is a mediator between the user and the unit. To access your unit via Cloud, it has to be connected to the internet via Internet Access Module. Component/product — Article number: • IAM – 323606 5.1.
30 | Accessories Note: The internet access module uses TCP port 8989. Make sure it is not blocked. Description A. Connect the Internet Access Module (IAM) to the Connection Board (CB) with included RJ10 cable. B. Power up the IAM with included power supply cable and adapter (230 V~). C. Enable access to the internet. Three options are available: • C1 — Activate WPS function on your router (if available) and press the button on the Internet Access Module for 5 seconds.
Accessories | 5.2 Indoor air quality sensors Indoor air quality sensors (IAQ) are CO2, relative humidity and temperature transmitters that must be installed either in extract air duct or the room depending on the type of transmitter.
32 | Accessories Electrical reheater is used for supply air heating during cold outside temperatures. Electrical reheater should be installed inside of the unit.
Accessories | 3 Insert reheater, lead cables trough holes on the side (pos. 1). Secure reheater in place using previously removed 4 knobs (pos. 2). Connect reheater power cable to a designated terminal strip (pos. 3). Connect reheater brown wire to L1, black wire to L2, white wire to L3 and blue wire to N sockets. Remove 230 V~ power supply cable with plug (pos. 5) by disconnecting it from the main terminal strip (pos. 4).
34 | Accessories ECT • ELH — electric heater 230 V~ • ECT — extra controller temperature sensor ELH 2 230 V~ • OAT — outdoor air duct temperature sensor • SAT — supply air temperature sensor AI 1 SAT RL ELH AI RL 3 ELH AI 4 • RL — relay DO DO • 1 — Outdoor air ECT SAT • 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
Accessories | 5.3.2.2 Heater installed in the supply air duct Installation and connection 1. Install an electric heater (ELH) at least 100 mm distance from the unit in the supply 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 installed in the circuit. 3.
36 | Accessories • WH — water heating battery • FPT — frost protection sensor • SAT — supply air temperature sensor • S — actuator for valve • 1 — Outdoor air • 2 — Supply air • 3 — Extract air • 4 — Exhaust air Component/product — Article number: • VBC 250-2 Water heating battery (2 rows) — 5460 • VBC 250-3 Water heating battery (3 rows) — 9843 • VAZ4 24A Actuator 0-10V (S) — 9862 • ZTV 15-1,6 2-way valve — 9824 • ZTR 15-1,6 valve 3-way — 9673 • Duct sensor -30-70C (SAT) — 211524 • Surface sensor -30-150C
Accessories | Note: A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better access and then configured as a supply air temperature sensor. However the internal supply air temperature sensor must be disabled in the control panel first. 7. Water heater and its components are now configured. 5.3.4 Duct water cooler A duct water cooler is supposed to be installed in supply air duct to provide a cooled down air to the apartment.
38 | Accessories 2. Enter password (default 1111) 3. Activate the actuator. Go to Components menu, select Cooler menu and select type as Water. Choose actuator voltage type. Do advanced settings if necessary. 4. Configure control signal to the actuator. Go to Service menu. Select Output menu. In next menu select ANALOG tab. Select the analog output to which the control wire of the actuator is connected.
Accessories | Configuration 1. Go to Service menu. 2. Enter password (default 1111) 3. Go to Components > Extra Controller > Extra Controller Mode menu and select GEO Exchanger option. If necessary change settings in the menus Configure preheater settings and Configure precooler settings. 4. Configure control signal. Go to Service > Output > DIGITAL menu. Select the digital output to which the ground heat exchanger is connected.
40 | Accessories the duct after heater/cooler. Connect the duct temperature sensor to analog input 2 (AI2) replacing the internal supply air temperature sensor. Note: A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better access and then configured as a supply air temperature sensor. However the internal supply air temperature sensor must be disabled in the control panel first. 6.
Accessories | 5.4 5.4.1 Airflow control VAV/CAV conversion kit The VAV/CAV conversion kit is used for VAV/CAV control of residential units. Note: The accessory package contains all needed parts for VAV conversion, however for use with CAV, an IRIS damper or a similar device with known K factor has to be purchased.
42 | Accessories Note: 24 VAC dampers can be powered and controlled only by using a relay mounting kit with a transformer (article number: 153548). This installation procedure describes how to connect dampers powered by 230 V~ with a relay mounting kit without transformer (article number: 153549). Installation and connection 1. Install dampers (U/V). 2. Connect control signal wires (24V, DO) coming out from the relay box (RL) to any free digital output on the connection board (CB). 3.
43 Accessories | 1. A differential pressure switch 2. Metal tube 3. Exhaust air direction 4. Exhaust air duct 1. Mount a differential pressure switch in a suitable place, for example on or near the outlet duct from the kitchen fan. Set the pressure switch to the lowest possible pressure, for example 20 Pa. 2. There are two possible installation cases. A pressure switch tube is installed in the duct: a.
44 | Accessories Note: • If the 24 V power supply on the connection board (CB) is used for other equipment, the number of control panels that can be powered from the unit will decrease. • A single active control panel draws 50 mA. The connection board supplies up to 250 mA. If no other accessories use 24 V power supply from the unit, up to 5 control panels can be connected without a need of external power supply. In order to connect more than 5 control panels, an external power supply is required.
Accessories | 5.5.4 Presence detector A presence detector is used to activate one of required functions when someone is present in the room. Universal input can be easily re-configured to activate a different function. Component/product — Article number: • Presence detector/IR24 — 6995 Configuration 1. Go to Service menu 2. Enter password (default 1111) 3. Go to Input menu. Select UNIVERSAL tab. 4. Select the universal input to which wire from the presence detector is connected.
Phone +370 340 60165 Fax +370 340 60166 www.systemair.com SAVE VTC 700 · · · en_GB · 2021-04-23 · v01 Systemair UAB Linų st.
