Raypak LONMARK Y-200 - Manual (Page 10)

10
Water Temperature Sensor
Installation
Hydronic Heating Applications
• Hydronic installations may require outdoor reset
function. See page 11, and screen 02.
• Ensure shielded cable length does not exceed 300
feet. Use 18 AWG shielded wire for sensor con-
nections.
• Must be installed in properly-sized conduit with no
other wiring.
• Locate the water sensor as shown in Fig. 6.
12”
MAX
5’ MAX
5’ MAX
4 OR MORE STAGES OR
4:1 TURN DOWN OR HIGHER
Fig. 6: Typical Water Sensor
NOTE: When the system involves a variable-speed
pump, it is recommended that the temperature
sensor be installed in the tee connecting boiler outlet
piping to the system. This is to ensure the control
can respond to the changing conditions of the
system by placing the sensor as close to the blend
location as possible and then provide an appropriate
and measured response to maintain desired system
delivery temperature.
NOTE: Piping diagrams in this manual are not
intended to replace an engineered piping system.