Phason Three Ventilation Stage Control, User Manual

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Phason TVS user manual
8
STAGE 2 P-BAND2 [0.0 - 16.0
o
F, 0.0 - 8.9
o
C] - The proportional band is a range of degrees above
the Stage 2 Start P-Band2 where the Stage 2 fan will increase in speed proportionally to the
temperature. If Temp Set (#1) is set to 80° F, Stage 2 Start P-Band2 (#7) is set to 10° F and Stage 2 P-
Band2 (#8) is set at 5° F, the Stage 2 variable speed fan will start to increase speed at 90° F and will
be at full speed at 95° F.
9 STAGE 3 TURN ON [-10.0 - 15.0
o
F, -5.5 - 8.4
o
C, OFF] - The number of degrees above or below
the Temp Set at which Stage 3 will turn on. If the Temp Set (#1) is set to 80° F and On Stage 3 (#9) is
set to 5° F, Stage 3 will turn on at 85° F. The Stage 3 Operation (#18) parameter regulates what mode
Stage 3 operates as (heat or cool).
10 Not Applicable
11 Not Applicable
12 LOW TEMPERATURE ALARM [OFF, -36.0 - 0.0
o
F, -20.0 - 0.0
o
C] - The number of degrees
below the Temp Set that a low temperature alarm will be generated (A Lt). This alarm may be
disabled by adjusting it to OFF.
13 HIGH TEMPERATURE ALARM [0.0 - 36.0
o
F, 0.0 - 20.0
o
C, OFF] - The number of degrees
above the Temp Set that a high temperature alarm will be generated (A Ht). This alarm may be
disabled by adjusting it to OFF.
GENERAL PARAMETERS
General parameters have one setting common to all programs. When they are changed in one program,
they change in all programs.
14 LOW POWER ALARM [ON - OFF] - When the line voltage drops below the proper operating level
a low power alarm will be displayed (A LP). This alarm may be disabled by adjusting it to OFF.
When disabled, the display will still flash A LP but the alarm relay will not activate.
15 LATCHING ALARMS [ON - OFF] - When this parameter is turned ON, all alarms will be
displayed on the TVS and will continue to flash after the alarm condition is gone. They can be reset
by pressing the RETURN button. This feature is useful to keep track of the alarms that occur during
times when the control is not being supervised. For example; in the morning, the TVS could be
checked for alarms that occurred during the night and then the alarms could be cleared. If this
parameter is turned OFF, the display will only show the alarm when the condition is present. When
the alarm condition is gone, the alarm will no longer be displayed.
16 VENTILATION [ON - OFF] - When this parameter is turned OFF, the variable speed outputs and
cooling stages are turned off completely and all alarms will not be displayed. The heating stages are
not affected. Ventilation may be turned OFF when a room is vacant to conserve energy. When it is
turned OFF the TVS will display VoFF. DO NOT use this to shut down fans to work on the wiring -
ensure the breakers are turned off.
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