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Table 4. Controller menu structure (continued)
Menu
Parameter
FAN SPEED
FAN CFM
SYSTEM
AUX1 OUT
SETUP
OCC
FACTORY DEFAULT
MA LO SET
FREEZE POS
CO
ZERO
2
CO
SPAN
2
ADVANCED
SETUP
STG3 DLY
SD DMPR POS
RT-SVN044A-EN
Parameter
Default Value
1 speed
(c)
(c)
5000cfm
NONE
(c)
INPUT
(c)
NO
(c)
45ºF
(c)
CLO
(c)
0ppm
2000ppm
(c)
2.0h
CLO
Parameter
Parameter
Range and
Recommended
Increment
Value
(a)
(b)
See unit
nameplate:
Digit 15 = 0 or 1 -
1 speed/ 2 speed
1 speed;
Digit 15 = 7 or 9 -
2 speed
100 to 15000 cfm;
5000 cfm
increment by 100
NONE
ERV
NONE
EXH2
SYS
INPUT or ALWAYS
ALWAYS
NO or YES
NO
35 to 55°F;
45ºF
increment by 1°F
CLO
CLO
MIN
0 to 500 ppm;
0ppm
increment by 10
1000 to 3000
ppm; increment
2000 ppm
by 50
0 min, 5 min, 15
min, then 15 min
2.0h
intervals. Up to 4h
or OFF
CLO
CLO
OPN
E E c c o o n n o o m m i i z z e e r r C C o o n n t t r r o o l l l l e e r r
Notes
Sets economizer controller for
operation of 1 speed or 2 speed supply
fan. The controller does not control the
fan but positions the OA and RA
dampers to the heating or cooling
mode. See page 23 for modes and
position.
Note: 2-speed fan option also needs
Heat (W1) programmed in AUX
2 In.
This is the capacity of the RTU. The
value is found in the Unit Catalog. The
cfm of the fan is only used with DCV
CAL ENABLE AUO.
AUX1 OUT is a programmable output
used for System Alarm output.
When using a setback thermostat with
occupancy out (24 Vac), the 24 Vac is
input "INPUT" to the OCC terminal. If
no occupancy output from the
thermostat then change program to
"ALWAYS" OR add a jumper from
terminal R to OCC terminal.
Resets all set points to factory defaults
when set to YES. LCD will briefly flash
YES and change to NO but all
parameters will change to factory
default values.
Temp to activate Freeze Protection
(close damper or modulate to MIN POS
if temp falls below set value).
Damper position when freeze
protection is active (closed or MIN
POS).
CO
ppm level to match CO
sensor
2
2
start level. 0-10 Vdc CO
sensors
2
require CO
ZERO to be 400.
2
CO
ppm span to match CO
sensor;
2
2
e.g.; 500-1500 sensor output would
be 500 CO
zero and 1000 CO
2
2
0-10 Vdc CO
sensors require CO
2
SPAN to be 1600.
Delay after stage 2 for cool has been
active. Turns on 2nd stage of
mechanical cooling when economizer
is 1st stage call and mechanical
cooling is 2nd stage call. Allows three
stages of cooling, 1 economizer and 2
mechanical. OFF = no Stage 3 cooling.
Indicates shutdown signal from space
thermostat or unitary controller. When
controller receives 24 Vac input on the
SD terminal in conventional mode, the
OA damper will open if programmed
for OPN and OA damper will close if
programmed for CLO. All other
controls, e.g., Y1-O, EXH1, etc. will
shut off.
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