Hydrolevel OS-100 - Manual (Page 2)

2
INSTALLING THE SENSOR
WIRING
STEP 2 Secure the
sensor on the bracket by
pressing it down into the
slotted hole as shown
above.
STEP 3
Using an extended wood
or masonry bit, drill a ¼" hole
through the side of the house at a
location giving the best access to
the boiler and the HydroStat control.
WARNING: Use caution to select
the hole location away from wires
or piping within the house wall.
STEP 4
Feed the sensor cable
through the hole and into the house.
Seal the hole with a bead of silicone
or other appropriate caulking
material.
STEP 5
Inside the house, route
the sensor cable to the HydroStat
control. Splice in an additional
length of wire as needed and, using
a crimping tool or pliers, terminate
with the two spade connectors pro-
vided.
NOTE: To avoid interference with
the sensor signal, do not run the
sensor cable close to any other
wiring such as telephone, cable,
power, etc.
Locate the three quick connect posts on the HydroStat
circuit board. The sensor cable will plug into two of
these terminals depending on the features to be used.
OUTDOOR RESET AND
WARM WEATHER SHUTDOWN
Attach the spade connectors to the right and
center spade posts (OR and C) for full outdoor reset
functionality including warm weather shutdown protec-
tion. Wiring this way overrides the Thermal Targeting
function of the Fuel Smart HydroStat control.
WARM WEATHER SHUTDOWN ONLY
Connect the wire ends to the left and center spade
connectors (WWSD and C) to add warm weather shut-
down functionality only. When wired this way, the Fuel
Smart HydroStat control will utilize its internal Thermal
Targeting function to reset the boiler temperature.
STEP 1 Using the
two screws and wire
clip provided, attach
the sensor bracket to
the side of the house.