STA-RITE Stack Flue Manual

FIGURE 1
Risk of fire, explosion, and electrical shock.
Heater service and repair must be performed by a qualified
installer, service agency, or the gas supplier.
Location
The Indoor Stack Flue Switch (ES2) / Stack Flue Sensor
(SFS) is located on the Exhaust Elbow.
Function
The Stack Flue Sensor prevents the flue gas output from
exceeding 500°F ±18°F (260°C ±8°C).
Servicing Procedure
To replace the Indoor Stack Flue Switch or Stack Flue
Sensor (See Figure 2, Page 2):
1. Turn off the filter pump and all electrical power to the
heater.
Sta-Rite Pool/Spa Group
293 Wright Street, Delavan, WI 53115
International: 262-728-5551, FAX: 262-728-7550
www.starite.com
Union City, TN • Delavan, WI • Mississauga, Ont. • Murrieta, CA
© 2004, Sta-Rite Industries
Stack Flue Sensor
2. Allow the heater to cool for at least half an hour before
3. Unbolt and remove the Upper Left and Upper Right
4. Disconnect the wires from the old Indoor Stack Flue
5. Remove the old Switch or Sensor by turning it counter-
6. Reverse Steps 1 through 5 above.
to seal the Stack Flue Sensor with a bead of RTV sealant
before threading it into the exhaust elbow.
Printed in U.S.A.
Stack Flue
Sensor (SFS)
P/N 42002-0024S
3700 0600
proceeding.
Jackets from the heater.
Switch or Sensor.
clockwise with a 1/2" open end wrench.
Risk of carbon monoxide poisoning. BE SURE
S381 (Rev. 11/16/04)