Night Air Cooling Mode #1 (NA1)
In Night Air Cooling Mode 1, the TC-1 will monitor inside and
outside air temperatures and determine the appropriate
method for keeping space temperature from exceeding the
temperature specified by Set Point 1 (SP1). A second set
point (SP2) is provided for the purposes of specifying the
maximum outside air temperature above which fresh air
ventilation shall be inhibited.
Adjusting Set Points (SP1 & SP2):
Initial adjustment of SP1 (desired space temperature) and
SP2 (maximum outside air temperature above which fresh
air ventilation will be inhibited) should be done
independently from each other to establish the desired offset
between space temperature and maximum allowable outside
air temperature. Once this initial temperature offset has
been specified, an alternate method of adjusting space
temperature (SP1) can be used that will automatically
preserve this offset.
TP-1
SPACE TEMPERATURE
OUTSIDE AIR TEMPERATURE
TP-2
RE
L
A
Y
1
FRESH AIR VENTILATION
AIR CONDITIONING
U se only shielded C A T-5
cable to extend probe wiring
*
TC-1 Controller w/ Night Air Cooling Firmware
RE
L
A
Y
2
PR
O
B
E
B
U
S