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4
WM-
W
M-
WM-
W
M-
WM-
ODR Outdoor RODR Outdoor R
ODR Outdoor RODR Outdoor R
ODR Outdoor R
eset Controleset Control
eset Controleset Control
eset Control
Part number 550-141-860/0107
Installation
Outdoor sensor
Figure 1
Outdoor sensor installation
When applying outdoor reset to a hydronic system, review boiler instruction
manual for any special piping requirements needed for low temperature
operation. Outdoor reset controls will cause sustained operation below
140°F. Failure to pipe boiler in accordance with boiler manufacturer’s
recommendations could result in damage to the boiler, causing severe
personal injury, death or substantial property damage.
Install on the North side or a shaded side of the building. Locate a minimum of 10 feet above
grade or 3 feet above anticipated maximum snow level and not near any place where internal
heat could affect the sensor reading, such as windows, doors, exhaust vents or fans.
Figure 2
Water supply sensor
installation
Water sensor Install the water sensor on the common supply header.
Locate outdoor sensor on
North wall — no exposure
to sunlight
Outdoor
sensor
Conduit clamp
(by others)
Conduit
(by others)
86003
Prevent outdoor sensor from being
covered by snow. The sensor would
be unable to correctly sense outdoor
temperature, causing possible
incorrect system water temperature
regulation.
Strap sensor to main supply from
boiler using nylon cable tie.
Wrap sensor and pipe with pipe insulation (by others)
to assure sensor will correctly sense water temp.
86004
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