Temperature Sensor Location
SIDEWALL
SENSOR LOCATION FROM
BURNER BOX
Heater Controls
WARNING
Electrical Shock Hazard
■ Disconnect the heater's electrical supply before
interconnecting the temperature control.
■ Failure to disconnect the electrical supply will
result in electrical shock.
■ Electrical shock will cause severe injury or
death.
The Sentry heater is operated by the building's
environmental control system. To accomplish this,
the heater must be connected to an electrical outlet
controlled by a relay or set of contacts that is closed
and opened by the building controller.
Connecting series tap thermostat kit.
• Connect power cord of heater to female side of
thermostat cord set.
• Plug the male side of cord set into an approved
extension cord or to wall outlet.
5 FT. FROM CENTER OF TUBE
TO SENSOR LOCATION
SENSOR LOCATED ABOVE
FLOOR
10 FT.
FLOOR
Heaters with Two Stage Gas Control Valves
Heaters with two stage gas controls are wired to start up
and operate in the first stage position as shipped from the
factory. Connections to a thermostat or building controller
is required for further operation.
1. Wiring Two Stage Thermostat
- Remove wire nut at orange and yellow wires.
- Connect wiring of two stage thermostat as shown.
Owner's Manual • Sentry
Sentry Tube Heaters
ANIMAL HEIGHT
SENSOR LOCATED ABOVE
ANIMAL HEIGHT
15