Display Chart - heat-timer VSP Installation & Operating Instructions Manual

DISPLAY VALUES and ADJUSTMENTS
PRESS
VSP
LEFT
DISPLAY
BUTTON
Once
Outdoor Temp
T wice
Return Temp
3 times
System Start
4 times
Reset Ratio
5 times
Offset
6 times
Low /Min Return
7 times
Hi/Max Supply
7 times
Set Point
8 times
Setback
9 times Secondary Loop
2
Default Temp
1
These are sensor readings. They can not be adjusted.
2
The display of each setting will remain active for approximately 20 seconds after the last adjustment. Then the
display will revert to the default reading .
Release center button to read v alue
If v alue needs adj ustment, press the UP or DOWN button
For large adj ustments hold either button dow n
T his is the temperature of the outdoor sensor. If it does not read
correctly, check the Troubleshooting guide.
1
T his is the temperature of the water returning to the boiler. If this senso
is not installed it will display
1
read correctly, check the Troubleshooting guide.
T his is the outdoor temperature below which the VSP will activate the
Secondary loop pump and control the variable speed pump. If the ON
setting is selected, the VSP will activate or control both pumps
regardless of outdoor temperature. If the OFF setting is selected, the
VSP will never activate either pump.
Set Point Operation: No Effect
Reset Operation: T he higher the curve number selected, the faster the
temperature of the Secondary loop will be increased as outdoor
temperature decreases (for Reset curves see pg. 12).
Set Point Operation: No Effect
Reset Operation: T he Offset will adjust the calculated Secondary loop
temperature (determined by the outdoor temperature, Reset Ratio and
Setback) by the amount displayed.
No Return Water Sensor: Set to OFF
With Return Water Sensor: Set to the boiler manufacturer's
specification for minimum boiler return temperature.
Reset Operation ONLY: T his is the highest Secondary loop water
temperature the VSP will maintain.
IMPORT ANT : T he VSP is not a safety control. All appropriate
Set Point Operation ONLY: T his is the Secondary loop water
temperature the VSP will maintain.
IMPORT ANT : T he VSP is not a safety control. All appropriate
T his is the number of degrees the Secondary loop water temperature
will be lowered if the VSP is put into Setback.
T his is the temperature reading of the Secondary loop sensor. If it doe
not read correctly, check the T roubleshooting guide.
1
10
OPN. If the sensor is installed and does not
safety controls must be installed.
safety controls must be installed.