CNT-SVX05B-EN 115
Index
A
AH540
overview, 1
termination board drawing, 5
AH541
overview, 1
termination board drawing, 6
air-handling units
supported configuration options, 1
supported function options, 1
supported types, 1
analog inputs
CO2 sensor (IN13), 21
configuration, 76
discharge air temperature (IN4), 19
duct static pressure (J43), 22
entering water temperature (IN13), 21
evaporator refrigerant temperature
(IN13), 22
fan (supply) mode switch (IN3), 19
functions and locations, 17
generic temperature (IN13), 22
local setpoint (IN2), 18
mixed-air temperature (IN6), 20
outdoor air temperature (IN5), 19
relative humidity (IN13), 20
required for unit operation, 88
space temperature (IN1), 18
universal (IN13), 20
analog outputs
configuration, 75
cool valve output or two-pipe
changeover (AO2), 16
face-and-bypass damper (AO4), 16
functions and locations, 16
heat (water, steam, electric heat
sequencer) (AO3), 16
not used (AO6), 16
outdoor air damper (AO5), 16
ranges, 17
supply fan speed (AO1), 16
Auto mode
discharge air temperature control, 40
space temperature control, 34
B
binary inputs
coil defrost (IN12), 27
configuration, 76
exhaust fan (IN12), 27
filter status (IN11), 26
functions and locations, 23
generic (IN9), 25
occupancy input (IN9), 25
run/stop input (IN8), 25
supply fan status input (IN10), 26
binary outputs
configuration, 75
DX stage 1/electric stage 4 (BO3), 15
DX stage 2/electric stage 3 (BO4), 15
DX stage 3/electric stage 2 (BO5), 15
DX stage 4/electric stage 1 (BO6), 15
exhaust fan start/stop (BO2), 15
functions and locations, 15
LEDs, 86
status LED, 16
supply fan start/stop (BO1), 15
wiring, 15
binding controllers, 3
brightness, adjusting operator display,
13
bypass timer, 29
C
calibrating
local setpoint, 19
operator display, 13
space temperature input, 18
Cancel button, 18, 23, 29, 47
cascade control. See space temperature
control.
changeover, 53
space temperature control, 34, 35
circuit board drawings, 4, 5, 6
CO2 sensor
input (IN13), 21
mA values, 108
CO2 Sensor Failure diagnostic, 21, 92
coil defrost
as unit protection strategy, 70
input (IN7, IN12), 24, 27, 66
coil freeze protection
face-and-bypass heating, 70
freeze avoidance, 70
low-temperature detection, 70
mixed-air temperature control, 70
Comm LED, 88
communicated heating/cooling request