McQuay FCVC, Руководство по установке и обслуживанию

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McQuay IM 846 Page 69
Operation
Fan Operation
The thermostat may be factory configured for standard or
staged fan operation.
Standard Fan Configuration (TA170-001)
Units with standard fan operation (Figure 8) have a selectable
fan Speed button.
Figure 8: Standard fan operation
Staged Fan Configuration (TB170-001)
Factory configuration is available for staged fan operation
(Figure 9) to provide occupant comfort while using the most
effective fan speed.
Figure 9: Staged fan operation
Controlled Off Factory Configuration
A factory configuration may be provided for minimum heating
and cooling requirements. Using this configuration, the HEAT
and COOL outputs are automatically cycled on at the heat
setback limit. Your thermostat may not have this feature.
S PE ED: Fan s peed is
s elected by the user .
Fan ON: fan is on continuously.
Temperature demand—heat
S
e
t
p
o
in
t
Fan AUTO: fan cycles on with demand.
Temperature demand—cool
Fan ON: fan is on continuously.
Fan AUTO: fan cycles on with demand.
–4°F –3°F –2°F –1°F 4°F 3°F 2°F 1°F
Fan high
Fan medium
Fan low
Fan ON: fan stays at lowest speed.
Temperature demand—heat
Fan ON: fan stays at lowest speed.
Temperature demand—cool
System
ON
Set
point
Control
OFF
System
ON
Fan low
Fan high
Fan medium
–5°F –4°F –3°F
–2°F
–1°F 5°F 4°F 3°F 2°F 1°F