Honeywell prestige thx9421 Manuale Utente
System Installation Guide
18
69-2490—03
The Economizer can greatly reduce energy costs if configured properly. In some
climates the cooling system may run hundreds of hours, when it may not be
required to maintain indoor comfort. In some conditions, ventilation with outdoor
air can achieve the same level of comfort at lower cost. Tables below explain how
the Economizer feature maintains comfort while minimizing costs.
climates the cooling system may run hundreds of hours, when it may not be
required to maintain indoor comfort. In some conditions, ventilation with outdoor
air can achieve the same level of comfort at lower cost. Tables below explain how
the Economizer feature maintains comfort while minimizing costs.
Occupied
Heat/Cool/Fan running
ON
Occupied temporarily
Heat/Cool/Fan running
Occupied
Heat/Cool/Fan NOT running
Occupied temporarily
Heat/Cool/Fan NOT running
Pre-occupancy purge
Fan running
Unoccupied
Cooling system running
Unoccupied temporarily
Cooling system running
Standby
Cooling system running
Unoccupied
Cooling system NOT running
OFF
Unoccupied temporarily
Cooling system NOT running
Standby
Cooling system NOT running
ON
Non-programmable
Fan running
Non-programmable
Fan NOT running
OFF
Occupied
ON
Occupied temporarily
Temperature overrides
Unoccupied
OFF
Unoccupied temporarily
Standby
Non-programmable
Economizer and TOD operation (ISU 2220)
Commercial use only
Commercial use only
Thermostat Mode
Thermostat Mode
Equipment Operation
A-L/A terminal:
Economizer
A-L/A terminal:
TOD
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