Lochinvar SQUIRE SIT030 - Manual (Page 15)

Installation & Operation Manual
15
5
Wiring
Indirect Water Heater Sensor Setup (Knight Boiler)
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation.
ƽ CAUTION
1. Install the sensor inside the tank as depicted
in FIG. 5-1.
2. Connect the wire leads to the DHW Tank Sensor
(AUX) connection point on the Knight boiler
connection board (see FIG. 5-1).
DHW TANK SENSOR / AUTO RESET HIGH LIMIT
(PLACE SENSOR IN
TANK BULBWELL & SNAP
CLIP OVER BULBWELL)
TANK BULBWELL
KNIGHT LOW VOLTAGE
TERMINAL STRIP
DHW TANK
SENSOR
OUTDOOR
INDIRECT TANK
KNIGHT BOILER
Figure 5-1 Indirect Water Heater Controlled Using Tank Sensor
Install Tank Sensor
The tank sensor is a dual sensor which controls the
temperature of the tank from the boiler(see FIG. 4-1). The
tank sensor has a built-in high temperature limit set at
194°F.
NOTICE The sensor supplied contains an Auto Reset High Limit (194°F).
3. The Knight boiler will automatically read the sensor
and default the tank temperature setting to 125°F.
4. Adjust the tank setpoint program. Reference the
Knight Installation and Operation Manual for a
detailed explanation of the tank setpoint program.