Archives: FAQs
Can I get the NYB from the factory in silenced mode?
Yes this can be done. The selection will need to be de-rated.
Can I reduce the water volume needed when I have multiple NYB’s together?
Yes when you have 3 or more NYB’s together you can reduce up to 30% of the water volume, depending on the application it is being used for. When doing this always ask Aermec to confirm. Please contact help@www.navispy.com for further information.
What is needed to control up to 9 NYB’s at once?
Multichiller (1 for up to 9 NYB’s) Modbus card for every unit.
Do the NYB’s have a single point power connection on multiple modules?
Not from the factory, but we can have this done with a third party.
What do I need to control multiple ANK’s together?
RS485 Cards for each unit and a Multicontroller (1 for up to 4 ANK’s)
How low can the ANK operate in cooling mode?
68°F ambient with no Low Ambient Kit or 14°F ambient with Low ambient Kit (DCPX)
How does the isolation valve with redundant pumps work?
There is a single isolation valve per 2 pumps. If one breaks, you need isolate both, remove broken pump, and put a flange in its place before turning isolation valve back on.
How to enable the two NRP units to function as Master and Slave
You need to connect the two unit controllers (PCO3) in Plan network so it is necessary to connect the two Pco3- terminals J11 Then there is also the microPC cards and on B3 (MASTER) plant common leaving water temperature, connect the common temperature probe (NTC10 kohm) and enable it on parameter …
Heating Startup
To turn the unit on for the first time push the up button (*sun) and hold for 5 seconds. The sun indicator will light up. The AN unit will come on in heating and operate to the preset factory parameters.
Cooling Startup
To turn the unit on for the first time push the up button (*snowflake) and hold for 5 seconds. The snowflake indicator will light up. The AN unit will come on in cooling and operate to the factory pre-set factory parameters.
Heating Shutdown
To turn the unit off in heating mode push the up button (*sun) and hold for 5 seconds. Indicator lamp will go off. AN unit is off.
Cooling Shutdown
To turn the unit off in cooling mode push the up button (*snowflake) and hold for 5 seconds. Indicator lamp will go off. AN unit is off.
To switch from Heating to Cooling or Cooling to Heating
You must turn the operating cycle off by pushing the operating mode button (up arrow or down arrow) for 5 seconds until the unit has stopped. The unit is now in standby mode. Wait for five seconds and then press the desired mode button for 5 seconds. The unit must …
Alarm Reset
To reset an Alarm press the up and down arrow buttons simultaneously for 5 seconds. If the alarm has been manually or automatically reset the red indicator bell LED will go out. Press the clear button on the PRD1 for 5 seconds if installed.
Defrost Test
To start a defrost test you must block off the condenser coil with a plastic sheet and allow the unit to run in heating for at least 5 minutes. Then press the SEL and Up arrow buttons simultaneously for 5 second. The unit will go into defrost if are the …
Reset Parameters
Press and hold the Prg. button at the microchiller electrical power-up. When the procedure is over the display will show dF.
New User Directions for AN Units Operating with BMS Controls
Install dry contact relays and wiring to engage the AN unit ON/OFF 1A switch. Set the microchiller 2 parameters to switch from standalone to BMS operation. The closed 1A On / Off switch starts the AN circulating pump and the pump LED indicator. The flow switch closes. The microchiller 2 …
How do I access installation and service information for the NRL family of units?
The information can be accessed only by properly identifying the unit. The full Aermec model number, serial number, and comm. Numbers are required to identify wiring and components. Communications between the distributor and service mechanics can be made by contacting us at the following telephone or e-mail addresses. 1-905-564-2221 …