Condair Nortec GS 50, Руководство по эксплуатации и обслуживанию, Страница: 44 / 92

44 Operation
2583701_C_EN_1812_Nortec-GS_OM Nortec GS
5 Operation
5.1 General
Personnel Qualifications
The Nortec GS humidifier must only be operated by personnel who are adequately qualified, well trained
and are authorized by the customer.
Safety
Observe all safety precautions described in "For Your Safety" .
5.2 Operating Procedures
The procedures described in this section assume that the Nortec GS humidifier has been set up properly
and commissioned by a Condair technician or Condair-approved technician.
Before the Nortec GS humidifier can initiate combustion, it must be filled with water and the control
software must perform a series of functional and safety tests.
5.2.1 Filling the System
Fill the Nortec GS humidifier as follows. The control software also performs the float test to ensure that
the fill system, the water level controls and the drain pump(s) are functioning properly.
1. Close the manual gas shutoff valve in the supply line.
2. Open the shutoff valve in the water supply line.
3. Set the On/Off button on the humidifier to the On position.
The control software then energizes the dual fill valves and starts to fill the tank. When the water in
the float chamber(s) reaches the L1 level (red LED), the control software runs a series of tests on
the fill and drain system as described in "Water Management" on page 15 . On successful completion of
the tests, the float chamber is filled to the L3 level (green LED), and the humidifier goes into standby
mode. This process can take approximately 10-30 minutes depending on the size of the unit.
4. Set the On/Off button to the Off position, and perform the "Ignition Safety Shutoff Test" described below.
5.2.2 Ignition Safety Shutoff Test
Perform the ignition safety shutoff test as described below:
1. Check that the manual gas shutoff valve in the supply line is still closed.
2. Make sure that the contacts of all devices connected to the external security loop are closed.
3. Set the On/Off button to the On position. The control software runs a series of tests on the fill and
drain system, and on successful completion the humidifier goes into standby mode.
4. Set the demand signal to the humidifier from the building management system (BMS) or humidistat
at 100%.
The control software energizes the blower(s) to initiate the combustion sequence. The blower(s) run
at full capacity for the pre-purge duration to purge the system. The control software then verifies the
proper functioning of the safety systems and the blowers as described in
"Combustion" on page 14
.
After the safety systems check is completed successfully, the ignition control module(s) is energized.