Varifan CPS-2C, Installation & User Manual

Page: 29 / 42

CPS-2C USER’S GUIDE
CPS-2C Section C-29
TIMER
on
off
Open Time 1 (POS 10)
Open Time 1
This parameter is used to establish the duration of the run time for inlet 1
when it receives an opening demand. When
Probe 1 Readout is above
Main Set Point 1 , inlet 1 will wait for Open Delay 1 before opening for
Open Time 1 . This parameter is adjusted in 1-second increments from 1 to
120 seconds.
Open Delay 1
Off D
This parameter is used to establish the duration of the idle time for inlet 1
when it receives an opening demand. When
Probe 1 Readout is above
Main Set Point 1 , inlet 1 will wait for Open Delay 1 before opening for
Open Time 1 . This parameter is adjusted in 1-second increments from 5 to
600 seconds.
Main Set Point 1 (POS 11)
Main Set Point 1
This parameter is the temperature/static pressure goal for inlet 1 and the
reference for all settings relative to inlet 1. The
Main Set Point 1 is adjusted
in 0.1° increments from -40.0°F to 100.0°F (-40.0°C to 37.8°C) or from
0.000’’H
2
O to 0.500’’H
2
O by 0.001’’H
2
O increments.
Differential 1
dIFF
This parameter is used to establish the temperature/static pressure below
which inlet 1 will close. When
Probe 1 Readout is below Main Set Point 1
– Differential 1 , inlet 1 will close according to its timer. When Probe 1
Readout is above Main Set Point 1 – Differential 1 and below Main Set
Point 1 , inlet 1 will not move. This parameter is adjusted in 0.1° increments
from 0.5°F to 20.0°F (0.3°C to 11.1°C) or from 0.000’’H
2
O to 0.050’’H
2
O by
0.001’’H
2
O increments.
Inlet 1 Manual Operation
This parameter is used to override the controller’s calculated demands and
move the inlet in a given direction. If this parameter is set to
AutO (Auto),
the inlet will follow the demand the controller has calculated according to
temperature readings. If this parameter is set to
HOld
(Hold), the inlet will
not move. If this parameter is set to
Open
(Open), the inlet will open
continuously. If this parameter is set to ClOse (Close), the inlet will close
continuously.