UAB KOMFOVENT we reserve the right to make changes without prior notice
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C3.1-16-01
2.6. Other Control Functions
2.6.1. Remote unit switching on or off
If the unit is not operating according to programmed week schedule, by connecting (short-circuit) contacts 17,
18 (see chapter 1.3 c Picture) or 27, 28 (see chapter 1.3 d Picture) unit will be switched on and will operate in
mode, which is set in the panel main window (see Chapter 2.4); by disconnecting contacts unit operation will
return to standby mode.
If unit is operating in auto mode with chosen intensity, to switch it off by remote switch contacts 17, 18 (see
chapter 1.3 c Picture) or 27, 28 (see chapter 1.3 d Picture) must be connected (short-circuit).
Remote unit switching on and off is available only after activation of the
weekly program (Chapter 2.5.3.) and deactivation of “Override” function
(Chapter 2.5.2.5.)
2.6.2. Pump control
Units with water heater are designed with water circulation pump control. In winter pump operates continually,
in summer season it is off. When outdoor temperature is lower than 5 °C, pump is automatically turned on.
Pump is connected to the connection box contacts (see 1.3. chapter).
2.6.3. Cooling energy recovery
In summer when room temperature is lower than temperature outside, units with either plate heat exchanger or
rotary heat exchanger automatically operate with activated function of cooling energy recovery. This function
is not intended in supply air units (OTK).
2.6.4. Remote unit operation and failure indication
If the information about unit operation mode is requested (when unit is operating and when is not) indication
device (for ex. bulb) must be connected to the contacts 33, 35 (see chapter 1.3 c Picture). In the connection
board (see chapter 1.3.) are provided contacts 33, 34 (see chapter 1.3 c Picture) or 29, 30 (see chapter 1.3 d
Picture), which are intended for connection of unit’s emergency stop indicating device.
2.7. Unit PC control
This is additionally ordered function and for it implementation special network module “Ping2” is provided.
Connection diagrams and installation requirements of network module are given in the “Ping2” module instal-
lation manual.
After connecting units through special network modules to computer network or Internet and given an IP
address, integrated web server allows the operator from his computer not only to monitor, but also to control
air handling units operation: to turn on/off, change ventilation intensity and etc. It also allows indicating failures.
2.8. Troubleshooting
If the unit is not working:
• Make sure if the unit is connected to the electrical power supply.
• Check if the unit main switch is on (if designed).
• Check all control block fuses. If needed, change failed fuses with the new ones that are the same electrical
parameters as old ones (fuses types are shown in wiring diagrams).
• Check if there is not failure indication on the control panel. If there is indication, it needs to be eliminated
first. To eliminate failure use 2.8 Table, which describes failures.
• If nothing is indicating on control panel, check whether cable connecting control panel with the unit is not
damaged.
Summary of Contents for C3.1
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