A
CRD-200
10 of 14
Sep 06
PAGE 6 – DIGITAL INPUTS
6 D I G I T A L I N P U T S
< A 1 E 0 H S 1 F S 1 K 1 >
-Primarily a service tool, this page notes the external interlocks that may or may not be
required for certain operations. Refer to the C-TRAC3 OI&M manual for additional
information.
Input
Status
Description
1
Mechanical cooling is allowed
A
0
Mechanical cooling is disabled
1
Economizer to minimum position
E
0
Economizer allowed to modulate
1
Heating is allowed
HS
0
Heating is disabled
1
Occupied mode
FS
0
Unit off
1
Unoccupied mode
K
0
Unit off
PAGE 7 – 2
ND
DISCHARGE AIR
7 C O L D D E C K = 6 5
o
F
< A D J S E T P T = 5 0 >
-This sensor and setpoint may be used for a variety of applications, including multizone cold
deck, dehumidification pre-cool and room setpoints.
PAGE 8 – AMBIENT AND VFD
8 A M B I E N T = 6 5
o
F
< V F D = 3 5 % >
-Indicates the ambient sensor reading.
-Also notes the variable frequency drive feedback signal, if equipped.
PAGE 9 – FUNCTION TYPE
9 F U N C T I O N = S T D H V
A C
< T E M P B Y = B M S R E S E T >
-Describes the equipment function and temperature control.
