Table of Contents
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8
Raypak, Inc.
Install tHe sensors
HeatInG/storaGe tank systeM sensor (Hss)
InstallatIon
locatInG Hss
• Put the Heating System sensor approximately 10' feet past the last boiler on the
common supply header but before any major takeoffs.
• The sensor must be located where it sees the output of all the boiler stages. If a
boiler is piped so that the sensor does not see its output, the TempTracker mod+
will not sequence the boilers correctly.
• Only use a Standard Brass Tube sensor.
• The sensor wires can be extended up to 500' using a shielded 2-conductor cable
(Belden #8760 or equivalent). Do not ground the shield at the sensor but at the
panel using one of the terminals marked with an "O".
• Do not run sensor wires in conduit with line voltage wiring.
• Install a 3/8"ID 1/2"NPT immersion well.
• Insert the sensor probe of the supplied sensor into the well.
outdoor sensor InstallatIon
• Only use the Raypak sensor included with the unit.
• Locate the sensor in the shade on the north side of the building. The sensor
should never be in direct sunlight.
• Be sure the location is away from doors, windows, exhaust fans, vents, or other
possible heat sources.
• The sensor should be mounted approximately 10' feet above ground level.
• Adhere the Outdoor Label provided to the back of the sensor base.
• Use the Enclosure Base bottom knockout for the conduit. Use the locknut to
hold the conduit and enclosure base together. Screw the cover to the base.
• If screws are used to affix the enclosure to the wall, make sure to seal around the
sensor and wall except from the bottom.
• The sensor wires can be extended up to 500' using shielded 2-conductor cable
(#18/2). Do not ground the shield at the sensor but at the control using the
terminal marked with an "O".
• Do not run sensor wires in conduit with line voltage wiring.
the temptracker mod+ is an operating control only. all boilers
must have all safety and limit controls required by code. It is the
responsibility of the installer to verify that all the safety and limits
are working properly before the temptracker mod+ is installed.
determining the proper location for the outdoor sensor is very important. the temptracker mod+ will base
the heat on the outdoor temperature information it receives from this location. If the sensor is in the sun, or
covered with ice, its reading will be different from the actual outdoor temperature (od).
WarnInG
Immersion Heating System Sensor
If the system sensor can not sense
Strap-On Heating System Sensor
the correct heating system water
temperature supplied to the building,
Common Supply Pipe
the temptracker mod+ will not provide
comfortable heat levels. be sure the
system sensor is located on a main
supply pipe which can not
isolated from the system.
To control
Seal around
sensor and wall
Mounting
screws
location
alert
Immersion Well
Common Supply Pipe
3/8" ID 1/2" NPT
Shield
Heating System
Sensor
Sensor Probe
alert
Pipe Insulation
easily be
Outdoor Sensor
Shield
Connect
Outdoor
drip-hole
Conduit
Immersion Sensor
System Sensor
In Well
Sensor Probe
Outdoor
Sensor
snap-in
location
Shield
not connected
Outdoor Label
on back of Sensor
Well Locknut
Shield
Not connected
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