Auto-Zone Control Systems Auto-Zone Plus Systems Installation & Operation (Version 03A) - Manual (Page 8)

Section 1 Auto-Zone Plus
1-4 Design Guide
Other new features provided with the Zone Manager controller include the ability to
control a modulating chilled water valve for cooling and/or a modulating hot water valve
or SCR electric heater for heating. This modulating cooling and/or heating requires the
addition of the OE352 2 Slot Expansion Base Board with an OE355 4 Analog Output
Board mounted on it. The base board/expansion board assembly connects to the Zone
Manager via a modular cable. The Zone Manager has the ability to control up to 2 stages
of cooling and 2 stages of heating. When more stages are required the same OE352 2
Slot Expansion Base Board can be populated with up to (2) OE357 4 Relay Output
Expansion Boards to provide up to 4 additional stages of heating and/or cooling.
This new version also has Optimal Start capabilities. A target zone can be selected as a
control point and the Zone Manager will start the system at the correct time to make sure
the zone setpoint temperature is reached according to the scheduled start time based on
the soak time that the user configures. The new Zone Manager can now also be
configured to allow control of your HVAC unit based on the heating or cooling Supply
Air Temperature.
The Auto-Zone Plus System Manager allows multiple Zone Managers to be programmed
and monitored from a central operator's panel. Single-zone constant volume rooftop
HVAC units can also be connected to the Auto-Zone Plus communication network,
allowing for both multizone and single-zone equipment to be controlled from the same
system.
Substantial savings can be realized using the Auto-Zone Plus system instead of having to
install multiple single zone Constant Volume rooftop units to accommodate multiple
zone requirements. The Auto-Zone Plus system is versatile and can be used with any
packaged roof top or indoor HVAC unit or any split system HVAC unit. It controls a
variety of terminal unit functions including pressure dependent or pressure independent
single duct terminals and series or parallel flow fan terminals.
The optional Prism color graphics software package is available to provide for on site or
remote monitoring via a personal computer.