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Installation & Operation Manual
BAS Command: The unit factory default for the Occupancy Command
parameter is set to BAS Command. A qualifi ed technical agent may change
the parameter to be BAS Command, if diff erent from the default setting. This
option will enable the unit to be commanded from the BAS Server. The unit
is ready for BAS integration once this parameter is set up, and it can then
be commanded to occupied or unoccupied via the BAS by writing to the
Occupancy Status integration point (refer to Integration Points List document).
Manual Override: If the unit is intended to run all the time it can be set
to Manual Override, which will override the schedule and set the unit
into occupied mode indefi nitely, until the Manual Override option is
deselected.
Compressor Stages
This parameter allows the user to choose the number of compressors and stages
for the application. This parameter is typically set up from the factory to match the
unit confi guration and should only be changed by a qualifi ed technician.
Ensure the compressor confi guration is set accurately as this
selection will determine the code structure for reporting
compressor safety alarms from the Unit Protection Module
(UPM) to the controller. The fault codes for a 1 compressor 1
stage unit are diff erent from that for a 2 compressor 2 stage unit.
2 Compressor 2 Stages: This value is selected when unit has 2 compressors
and each compressor will operate as an independent stage.
1 Compressor 2 Stages: This value is selected when unit has 1 compressor
that has two independent stages. This is the default setting from the factory.
1 Compressor 1 Stage: This value is selected when unit has 1 compressor with
only 1 stage of operation.
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Mode Selection Method
This setting is similar to a thermostat mode select feature, which gives the user the
option of setting the unit mode. The options are: Heat, Cool, Off , Auto and Digital
input. When operating on Digital Input mode the unit will change from heat to cool
by using the state of the digital input (IN6) on controller as follows:
Off = Heat
On = Cool
This feature is typically used when the unit is not confi gured into a BAS network.
However, if there is a BAS network, it is recommended to operate the unit using
the integration points.
Figure 17
Night Setback Enable:
This parameter allows users to enable or disable night setback feature.
Enabling Night setback will operate the unit under the following setpoints
when it enters the unoccupied state.
74°F (adj.) Cooling setpoint.
85°F (adj.) Heating setpoint.
Disabling it puts the unit in an OFF state and the unit will not try to meet
any setpoints.
Aux Output Enable
This parameter can be used to energize the Auxiliary output (DO-5). This
is a manual setting and DO-5 is not confi gured to support any device in
particular. Its a simple On/Off function for D0-5 and is Off by default.
Use Optional Pump Output
When this parameter is set to Yes, BO-1 can be used for pump output.
Selecting Yes also enables the "Pump" confi guration page on the Settings
screen.
Data subject to change
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