Installation and Commissioning Guide - Split Ducted ESP Plus/Ultima Indoor Unit
Doc. No.0525-078
Ver. 2 190925
44
Installation and Commissioning Guide
Split Ducted ESP Indoor Unit
Q. Do I have to assign zones or sensor to zones on commissioning?
A. No need, when the system is initially powered up the Ultima system will automatically acquire the utilized zones. Because
each zone has its sensor there’s no need to assign sensor’s either.
Q. If I am not in ESP mode on the master will my zone still modulate the airflow?
A. Yes, it doesn’t matter what fan mode your in, if your Zone Control is in ESP Auto mode (On) the zone will modulate to
control your conditions. When using minimal zones use ESP fan mode.
Q. Where would we put common zones if we wanted to use one?
A. You no longer need wasteful common zones with Ultima. Common zones are impractical, as you have to dump unwanted
excess air from the fan in spaces you don't necessarily need. Common zones were introduced because of the limitations
of all standard fan coils. Ultima is designed to control every zone in your house and eliminate this element of waste and
maximise comfort.
Q. What is the recommended setting for air balancing?
A. For air balancing, press the
button on the Wall Control and set fan to
HIGH
speed.
Q. Does the back light on the Wall Control effect brightness of the room at night?
A. The display back light turns off at approximately 6 seconds after any button is pressed. Note that the back light is not set to
remain On.
Q. Does the LM7-2 come standard with all R-410A ESP Plus units?
A. Yes it does.
Q. How can you turn-off the individual zone from the Wall Control?
A. Each individual zone is assigned a zone button in your Wall Control. By turning-off this button, the zone motor will be
switched-off and will close the zone barrel. If you’re the last zone on and you turn it off, the system goes into standby mode,
as there is no demand for heating or cooling operation.
Q. Is it possible to turn-off all zone buttons to shut the system down?
A. Yes, (if on auto fan) the system will go into a standby mode.
Q. Is it possible to use the Manual fan speed mode to increase the air into a particular zone if the ESP fan mode is not
producing enough air?
A. Yes, it is recommended that in extreme conditions to turn the fan mode to either Manual High or Medium to increase the airflow into the
zone thus improving the system performance.
(
Note:
This is when using less than your total number of installed zones.)
Q. Would an in-line fan cause any operational problems if installed?
A. Yes it would. An in-line fan is not recommended on the variable fan units.
Q. Can I piggyback 2 zone barrels together as 1 zone?
A. Yes, you can have up to a total of 10 zone barrels per system.
Q. If the system receives 2 equal call for both Cooling and Heating while the system is in standby, what cycle starts first?
A. Cooling will start first as a default, and then when cooling is satisfied the system will swing to Heating.