Infloor TC 204 Heating Controller - Manual (Page 6)

Menu 9
Valve Exercise
MOT.
0 - 30 days Default 0
This line exercises the valve to keep it from sticking after a long period of inactivity. The valve periodically opens
at 1:00 am and closes 3 minutes later. The line is inactive if it is set at “0”; otherwise the number is how often the
event occurs: “1” for every day, “7” for once a week, or “10” for every 10 days.
Invert Outputs
INV. 0 or 1 Default 0
In program 1 this line inverts outputs 1 & 2 . 0 means the relay closes on demand; 1 means the relay opens.
Limits
LIM.L & LIMH These are inactive in this program.
Outdoor Cutoff Temperature
CUT.O -40º F to 122º F Default 86º F
This is the outside temperature when the valve closes completely. Above this temperature the valve wonʼt open
except the valve exercise function (MOT, above) does function.
Duty Rotation (boilers in sequence)
DR
Inactive in this program.
Go to Menu 6 REGUL
Minimum Water Temperature
MIN W
41º F - 203º F Default 75º F (24º C)
When you set the minimum water temperature the supply water temperature does not go below the setting until
the outdoor temperature is above the cutoff temperature. Then the valve closes.
MAXW
41º F - 203º F Default 140º F (60º C)
When you set the maximum temperature, the supply temperature never rises above the setting.
Proportional Band
P.W 0.5º C - 99.5º C Default 60º C Leave at the default setting.
Integral Time
I.W 0 - 50 minutes Default 0.5 min Leave at the default setting.
Room Proportional Band
P.R 0.5 - 50º C Default 2.0º C Leave at the default setting.
Room integral Time
I.R 0.0 to 99.5 minutes. Default 30 min Leave at the default setting.
Temperature Deviation Limit
≠P 0.0 to 5.0 Leave at the default setting.
This function only works when you change the room temperature setting.
MAX-
0º - 90º C Default 80º Leave at the default setting.
MAX+ 0º - 90º C Default 80º Leave at the default setting.
These are the minimum and maximum amount the room temperature can cause the supply water temperature to
deviate from the outdoor reset curve. If there is no outdoor sensor or room temperature sensor these lines have
no meaning. If no deviation is permitted the effect is the same as having no room sensor.
VENT
0 or 1
This setting prevents open windows or doors from having too much effect on the supply water temperature.
When active, it only permits the water temperature to rise 10º C (18º F) above the calculated value of the reset
curve. It disables itself after 1 hour.
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