STA-RITE Stack Flue Bedienungsanleitung
P/N 42002-0024S
Stack Flue
Sensor (SFS)
3700 0600
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.
2. Allow the heater to cool for at least half an hour before
proceeding.
3. Unbolt and remove the Upper Left and Upper Right
Jackets from the heater.
4. Disconnect the wires from the old Indoor Stack Flue
Switch or Sensor.
5. Remove the old Switch or Sensor by turning it counter-
clockwise with a 1/2” open end wrench.
6. Reverse Steps 1 through 5 above.
Risk of carbon monoxide poisoning. BE SURE
to seal the Stack Flue Sensor with a bead of RTV sealant
before threading it into the exhaust elbow.
Stack Flue Sensor
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 Printed in U.S.A. S381 (Rev. 11/16/04)
FIGURE 1
Control Board Setup
The Control Board is designed to work with both the Stack
Flue Switch (on older heaters) and the Stack Flue Sensor
(newer heaters). Please see Figure 2 to identify which type
of Stack Flue protection you are replacing.
NOTICE: If you have a pump module installed with your
heater, skip this procedure and go to the pump module
instruction manual. Follow the instructions for accessing
“SF0/SF1” under Low Level Programming. The Control
Board must be set to “SF1” for the heater to operate with a
Stack Flue Sensor installed.
If you are replacing a failed Stack Flue Sensor, your Control
Board should be set correctly for the new one. However, if
you are replacing either an Outdoor Stack Flue Switch or
an Indoor Stack Flue Switch, the Control Board will need
to be reset as follows:
1. Turn the power to the heater ON.
2. Press and hold the OFF button on the membrane pad
until the 3-digit display shows “Ad0” or “Ad1” (about
10 seconds).
3. Release the button and then press it momentarily. The
3-digit display will now show either “SF0” or “SF1”.
4. If the display reads “SF1”, it is correctly set. Go to Step
5. If it reads “SF0”, use the arrow buttons on the mem-
brane pad to set it to read “SF1”.
5. Momentarily press the “OFF” button to exit the pro-
gram. See the heater owner’s manual for normal heater
operation instructions.
Safety Precautions:
Burn hazard. If heater has been operating,
allow it to cool for at least half an hour before touching
the Stack Flue Switch or the Combustion Chamber Collar.
REPAIR PARTS LIST
Part Part
Description Qty. No.
Stack Flue Sensor 1 42002-0024S
FIGURE 2 - Stack Protection Identification
3674 0300
Stack Flue Sensor;
1/2" Hex, 2" Leads:
Set Board to SF1
Outdoor Stack Flue
Switch (Obsolete):
Set board to SF0
Retrofit Probe (also
called Indoor Stack
Flue Switch); 3/4"
Hex, Terminals: Set
Board to SF0
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